Index: src/site/samples/searchable_list/example/packages/web_components/platform.concat.js |
diff --git a/src/site/samples/searchable_list/example/packages/web_components/platform.concat.js b/src/site/samples/searchable_list/example/packages/web_components/platform.concat.js |
deleted file mode 100644 |
index 68b593d8b5c85d4d4a269cfe1ef246007fbe0745..0000000000000000000000000000000000000000 |
--- a/src/site/samples/searchable_list/example/packages/web_components/platform.concat.js |
+++ /dev/null |
@@ -1,14237 +0,0 @@ |
-/** |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-window.Platform = window.Platform || {}; |
-// prepopulate window.logFlags if necessary |
-window.logFlags = window.logFlags || {}; |
-// process flags |
-(function(scope){ |
- // import |
- var flags = scope.flags || {}; |
- // populate flags from location |
- location.search.slice(1).split('&').forEach(function(o) { |
- o = o.split('='); |
- o[0] && (flags[o[0]] = o[1] || true); |
- }); |
- var entryPoint = document.currentScript || |
- document.querySelector('script[src*="platform.js"]'); |
- if (entryPoint) { |
- var a = entryPoint.attributes; |
- for (var i = 0, n; i < a.length; i++) { |
- n = a[i]; |
- if (n.name !== 'src') { |
- flags[n.name] = n.value || true; |
- } |
- } |
- } |
- if (flags.log) { |
- flags.log.split(',').forEach(function(f) { |
- window.logFlags[f] = true; |
- }); |
- } |
- // If any of these flags match 'native', then force native ShadowDOM; any |
- // other truthy value, or failure to detect native |
- // ShadowDOM, results in polyfill |
- flags.shadow = flags.shadow || flags.shadowdom || flags.polyfill; |
- if (flags.shadow === 'native') { |
- flags.shadow = false; |
- } else { |
- flags.shadow = flags.shadow || !HTMLElement.prototype.createShadowRoot; |
- } |
- |
- if (flags.shadow && document.querySelectorAll('script').length > 1) { |
- console.warn('platform.js is not the first script on the page. ' + |
- 'See http://www.polymer-project.org/docs/start/platform.html#setup ' + |
- 'for details.'); |
- } |
- |
- // CustomElements polyfill flag |
- if (flags.register) { |
- window.CustomElements = window.CustomElements || {flags: {}}; |
- window.CustomElements.flags.register = flags.register; |
- } |
- |
- if (flags.imports) { |
- window.HTMLImports = window.HTMLImports || {flags: {}}; |
- window.HTMLImports.flags.imports = flags.imports; |
- } |
- |
- // export |
- scope.flags = flags; |
-})(Platform); |
- |
-/* |
- * Copyright 2012 The Polymer Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-if (typeof WeakMap === 'undefined') { |
- (function() { |
- var defineProperty = Object.defineProperty; |
- var counter = Date.now() % 1e9; |
- |
- var WeakMap = function() { |
- this.name = '__st' + (Math.random() * 1e9 >>> 0) + (counter++ + '__'); |
- }; |
- |
- WeakMap.prototype = { |
- set: function(key, value) { |
- var entry = key[this.name]; |
- if (entry && entry[0] === key) |
- entry[1] = value; |
- else |
- defineProperty(key, this.name, {value: [key, value], writable: true}); |
- }, |
- get: function(key) { |
- var entry; |
- return (entry = key[this.name]) && entry[0] === key ? |
- entry[1] : undefined; |
- }, |
- delete: function(key) { |
- this.set(key, undefined); |
- } |
- }; |
- |
- window.WeakMap = WeakMap; |
- })(); |
-} |
- |
-// Copyright 2012 Google Inc. |
-// |
-// Licensed under the Apache License, Version 2.0 (the "License"); |
-// you may not use this file except in compliance with the License. |
-// You may obtain a copy of the License at |
-// |
-// http://www.apache.org/licenses/LICENSE-2.0 |
-// |
-// Unless required by applicable law or agreed to in writing, software |
-// distributed under the License is distributed on an "AS IS" BASIS, |
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
-// See the License for the specific language governing permissions and |
-// limitations under the License. |
- |
-(function(global) { |
- 'use strict'; |
- |
- // Detect and do basic sanity checking on Object/Array.observe. |
- function detectObjectObserve() { |
- if (typeof Object.observe !== 'function' || |
- typeof Array.observe !== 'function') { |
- return false; |
- } |
- |
- var records = []; |
- |
- function callback(recs) { |
- records = recs; |
- } |
- |
- var test = {}; |
- var arr = []; |
- Object.observe(test, callback); |
- Array.observe(arr, callback); |
- test.id = 1; |
- test.id = 2; |
- delete test.id; |
- arr.push(1, 2); |
- arr.length = 0; |
- |
- Object.deliverChangeRecords(callback); |
- if (records.length !== 5) |
- return false; |
- |
- if (records[0].type != 'add' || |
- records[1].type != 'update' || |
- records[2].type != 'delete' || |
- records[3].type != 'splice' || |
- records[4].type != 'splice') { |
- return false; |
- } |
- |
- Object.unobserve(test, callback); |
- Array.unobserve(arr, callback); |
- |
- return true; |
- } |
- |
- var hasObserve = detectObjectObserve(); |
- |
- function detectEval() { |
- // Don't test for eval if we're running in a Chrome App environment. |
- // We check for APIs set that only exist in a Chrome App context. |
- if (typeof chrome !== 'undefined' && chrome.app && chrome.app.runtime) { |
- return false; |
- } |
- |
- try { |
- var f = new Function('', 'return true;'); |
- return f(); |
- } catch (ex) { |
- return false; |
- } |
- } |
- |
- var hasEval = detectEval(); |
- |
- function isIndex(s) { |
- return +s === s >>> 0; |
- } |
- |
- function toNumber(s) { |
- return +s; |
- } |
- |
- function isObject(obj) { |
- return obj === Object(obj); |
- } |
- |
- var numberIsNaN = global.Number.isNaN || function(value) { |
- return typeof value === 'number' && global.isNaN(value); |
- } |
- |
- function areSameValue(left, right) { |
- if (left === right) |
- return left !== 0 || 1 / left === 1 / right; |
- if (numberIsNaN(left) && numberIsNaN(right)) |
- return true; |
- |
- return left !== left && right !== right; |
- } |
- |
- var createObject = ('__proto__' in {}) ? |
- function(obj) { return obj; } : |
- function(obj) { |
- var proto = obj.__proto__; |
- if (!proto) |
- return obj; |
- var newObject = Object.create(proto); |
- Object.getOwnPropertyNames(obj).forEach(function(name) { |
- Object.defineProperty(newObject, name, |
- Object.getOwnPropertyDescriptor(obj, name)); |
- }); |
- return newObject; |
- }; |
- |
- var identStart = '[\$_a-zA-Z]'; |
- var identPart = '[\$_a-zA-Z0-9]'; |
- var identRegExp = new RegExp('^' + identStart + '+' + identPart + '*' + '$'); |
- |
- function getPathCharType(char) { |
- if (char === undefined) |
- return 'eof'; |
- |
- var code = char.charCodeAt(0); |
- |
- switch(code) { |
- case 0x5B: // [ |
- case 0x5D: // ] |
- case 0x2E: // . |
- case 0x22: // " |
- case 0x27: // ' |
- case 0x30: // 0 |
- return char; |
- |
- case 0x5F: // _ |
- case 0x24: // $ |
- return 'ident'; |
- |
- case 0x20: // Space |
- case 0x09: // Tab |
- case 0x0A: // Newline |
- case 0x0D: // Return |
- case 0xA0: // No-break space |
- case 0xFEFF: // Byte Order Mark |
- case 0x2028: // Line Separator |
- case 0x2029: // Paragraph Separator |
- return 'ws'; |
- } |
- |
- // a-z, A-Z |
- if ((0x61 <= code && code <= 0x7A) || (0x41 <= code && code <= 0x5A)) |
- return 'ident'; |
- |
- // 1-9 |
- if (0x31 <= code && code <= 0x39) |
- return 'number'; |
- |
- return 'else'; |
- } |
- |
- var pathStateMachine = { |
- 'beforePath': { |
- 'ws': ['beforePath'], |
- 'ident': ['inIdent', 'append'], |
- '[': ['beforeElement'], |
- 'eof': ['afterPath'] |
- }, |
- |
- 'inPath': { |
- 'ws': ['inPath'], |
- '.': ['beforeIdent'], |
- '[': ['beforeElement'], |
- 'eof': ['afterPath'] |
- }, |
- |
- 'beforeIdent': { |
- 'ws': ['beforeIdent'], |
- 'ident': ['inIdent', 'append'] |
- }, |
- |
- 'inIdent': { |
- 'ident': ['inIdent', 'append'], |
- '0': ['inIdent', 'append'], |
- 'number': ['inIdent', 'append'], |
- 'ws': ['inPath', 'push'], |
- '.': ['beforeIdent', 'push'], |
- '[': ['beforeElement', 'push'], |
- 'eof': ['afterPath', 'push'] |
- }, |
- |
- 'beforeElement': { |
- 'ws': ['beforeElement'], |
- '0': ['afterZero', 'append'], |
- 'number': ['inIndex', 'append'], |
- "'": ['inSingleQuote', 'append', ''], |
- '"': ['inDoubleQuote', 'append', ''] |
- }, |
- |
- 'afterZero': { |
- 'ws': ['afterElement', 'push'], |
- ']': ['inPath', 'push'] |
- }, |
- |
- 'inIndex': { |
- '0': ['inIndex', 'append'], |
- 'number': ['inIndex', 'append'], |
- 'ws': ['afterElement'], |
- ']': ['inPath', 'push'] |
- }, |
- |
- 'inSingleQuote': { |
- "'": ['afterElement'], |
- 'eof': ['error'], |
- 'else': ['inSingleQuote', 'append'] |
- }, |
- |
- 'inDoubleQuote': { |
- '"': ['afterElement'], |
- 'eof': ['error'], |
- 'else': ['inDoubleQuote', 'append'] |
- }, |
- |
- 'afterElement': { |
- 'ws': ['afterElement'], |
- ']': ['inPath', 'push'] |
- } |
- } |
- |
- function noop() {} |
- |
- function parsePath(path) { |
- var keys = []; |
- var index = -1; |
- var c, newChar, key, type, transition, action, typeMap, mode = 'beforePath'; |
- |
- var actions = { |
- push: function() { |
- if (key === undefined) |
- return; |
- |
- keys.push(key); |
- key = undefined; |
- }, |
- |
- append: function() { |
- if (key === undefined) |
- key = newChar |
- else |
- key += newChar; |
- } |
- }; |
- |
- function maybeUnescapeQuote() { |
- if (index >= path.length) |
- return; |
- |
- var nextChar = path[index + 1]; |
- if ((mode == 'inSingleQuote' && nextChar == "'") || |
- (mode == 'inDoubleQuote' && nextChar == '"')) { |
- index++; |
- newChar = nextChar; |
- actions.append(); |
- return true; |
- } |
- } |
- |
- while (mode) { |
- index++; |
- c = path[index]; |
- |
- if (c == '\\' && maybeUnescapeQuote(mode)) |
- continue; |
- |
- type = getPathCharType(c); |
- typeMap = pathStateMachine[mode]; |
- transition = typeMap[type] || typeMap['else'] || 'error'; |
- |
- if (transition == 'error') |
- return; // parse error; |
- |
- mode = transition[0]; |
- action = actions[transition[1]] || noop; |
- newChar = transition[2] === undefined ? c : transition[2]; |
- action(); |
- |
- if (mode === 'afterPath') { |
- return keys; |
- } |
- } |
- |
- return; // parse error |
- } |
- |
- function isIdent(s) { |
- return identRegExp.test(s); |
- } |
- |
- var constructorIsPrivate = {}; |
- |
- function Path(parts, privateToken) { |
- if (privateToken !== constructorIsPrivate) |
- throw Error('Use Path.get to retrieve path objects'); |
- |
- for (var i = 0; i < parts.length; i++) { |
- this.push(String(parts[i])); |
- } |
- |
- if (hasEval && this.length) { |
- this.getValueFrom = this.compiledGetValueFromFn(); |
- } |
- } |
- |
- // TODO(rafaelw): Make simple LRU cache |
- var pathCache = {}; |
- |
- function getPath(pathString) { |
- if (pathString instanceof Path) |
- return pathString; |
- |
- if (pathString == null || pathString.length == 0) |
- pathString = ''; |
- |
- if (typeof pathString != 'string') { |
- if (isIndex(pathString.length)) { |
- // Constructed with array-like (pre-parsed) keys |
- return new Path(pathString, constructorIsPrivate); |
- } |
- |
- pathString = String(pathString); |
- } |
- |
- var path = pathCache[pathString]; |
- if (path) |
- return path; |
- |
- var parts = parsePath(pathString); |
- if (!parts) |
- return invalidPath; |
- |
- var path = new Path(parts, constructorIsPrivate); |
- pathCache[pathString] = path; |
- return path; |
- } |
- |
- Path.get = getPath; |
- |
- function formatAccessor(key) { |
- if (isIndex(key)) { |
- return '[' + key + ']'; |
- } else { |
- return '["' + key.replace(/"/g, '\\"') + '"]'; |
- } |
- } |
- |
- Path.prototype = createObject({ |
- __proto__: [], |
- valid: true, |
- |
- toString: function() { |
- var pathString = ''; |
- for (var i = 0; i < this.length; i++) { |
- var key = this[i]; |
- if (isIdent(key)) { |
- pathString += i ? '.' + key : key; |
- } else { |
- pathString += formatAccessor(key); |
- } |
- } |
- |
- return pathString; |
- }, |
- |
- getValueFrom: function(obj, directObserver) { |
- for (var i = 0; i < this.length; i++) { |
- if (obj == null) |
- return; |
- obj = obj[this[i]]; |
- } |
- return obj; |
- }, |
- |
- iterateObjects: function(obj, observe) { |
- for (var i = 0; i < this.length; i++) { |
- if (i) |
- obj = obj[this[i - 1]]; |
- if (!isObject(obj)) |
- return; |
- observe(obj, this[0]); |
- } |
- }, |
- |
- compiledGetValueFromFn: function() { |
- var str = ''; |
- var pathString = 'obj'; |
- str += 'if (obj != null'; |
- var i = 0; |
- var key; |
- for (; i < (this.length - 1); i++) { |
- key = this[i]; |
- pathString += isIdent(key) ? '.' + key : formatAccessor(key); |
- str += ' &&\n ' + pathString + ' != null'; |
- } |
- str += ')\n'; |
- |
- var key = this[i]; |
- pathString += isIdent(key) ? '.' + key : formatAccessor(key); |
- |
- str += ' return ' + pathString + ';\nelse\n return undefined;'; |
- return new Function('obj', str); |
- }, |
- |
- setValueFrom: function(obj, value) { |
- if (!this.length) |
- return false; |
- |
- for (var i = 0; i < this.length - 1; i++) { |
- if (!isObject(obj)) |
- return false; |
- obj = obj[this[i]]; |
- } |
- |
- if (!isObject(obj)) |
- return false; |
- |
- obj[this[i]] = value; |
- return true; |
- } |
- }); |
- |
- var invalidPath = new Path('', constructorIsPrivate); |
- invalidPath.valid = false; |
- invalidPath.getValueFrom = invalidPath.setValueFrom = function() {}; |
- |
- var MAX_DIRTY_CHECK_CYCLES = 1000; |
- |
- function dirtyCheck(observer) { |
- var cycles = 0; |
- while (cycles < MAX_DIRTY_CHECK_CYCLES && observer.check_()) { |
- cycles++; |
- } |
- if (global.testingExposeCycleCount) |
- global.dirtyCheckCycleCount = cycles; |
- |
- return cycles > 0; |
- } |
- |
- function objectIsEmpty(object) { |
- for (var prop in object) |
- return false; |
- return true; |
- } |
- |
- function diffIsEmpty(diff) { |
- return objectIsEmpty(diff.added) && |
- objectIsEmpty(diff.removed) && |
- objectIsEmpty(diff.changed); |
- } |
- |
- function diffObjectFromOldObject(object, oldObject) { |
- var added = {}; |
- var removed = {}; |
- var changed = {}; |
- |
- for (var prop in oldObject) { |
- var newValue = object[prop]; |
- |
- if (newValue !== undefined && newValue === oldObject[prop]) |
- continue; |
- |
- if (!(prop in object)) { |
- removed[prop] = undefined; |
- continue; |
- } |
- |
- if (newValue !== oldObject[prop]) |
- changed[prop] = newValue; |
- } |
- |
- for (var prop in object) { |
- if (prop in oldObject) |
- continue; |
- |
- added[prop] = object[prop]; |
- } |
- |
- if (Array.isArray(object) && object.length !== oldObject.length) |
- changed.length = object.length; |
- |
- return { |
- added: added, |
- removed: removed, |
- changed: changed |
- }; |
- } |
- |
- var eomTasks = []; |
- function runEOMTasks() { |
- if (!eomTasks.length) |
- return false; |
- |
- for (var i = 0; i < eomTasks.length; i++) { |
- eomTasks[i](); |
- } |
- eomTasks.length = 0; |
- return true; |
- } |
- |
- var runEOM = hasObserve ? (function(){ |
- var eomObj = { pingPong: true }; |
- var eomRunScheduled = false; |
- |
- Object.observe(eomObj, function() { |
- runEOMTasks(); |
- eomRunScheduled = false; |
- }); |
- |
- return function(fn) { |
- eomTasks.push(fn); |
- if (!eomRunScheduled) { |
- eomRunScheduled = true; |
- eomObj.pingPong = !eomObj.pingPong; |
- } |
- }; |
- })() : |
- (function() { |
- return function(fn) { |
- eomTasks.push(fn); |
- }; |
- })(); |
- |
- var observedObjectCache = []; |
- |
- function newObservedObject() { |
- var observer; |
- var object; |
- var discardRecords = false; |
- var first = true; |
- |
- function callback(records) { |
- if (observer && observer.state_ === OPENED && !discardRecords) |
- observer.check_(records); |
- } |
- |
- return { |
- open: function(obs) { |
- if (observer) |
- throw Error('ObservedObject in use'); |
- |
- if (!first) |
- Object.deliverChangeRecords(callback); |
- |
- observer = obs; |
- first = false; |
- }, |
- observe: function(obj, arrayObserve) { |
- object = obj; |
- if (arrayObserve) |
- Array.observe(object, callback); |
- else |
- Object.observe(object, callback); |
- }, |
- deliver: function(discard) { |
- discardRecords = discard; |
- Object.deliverChangeRecords(callback); |
- discardRecords = false; |
- }, |
- close: function() { |
- observer = undefined; |
- Object.unobserve(object, callback); |
- observedObjectCache.push(this); |
- } |
- }; |
- } |
- |
- /* |
- * The observedSet abstraction is a perf optimization which reduces the total |
- * number of Object.observe observations of a set of objects. The idea is that |
- * groups of Observers will have some object dependencies in common and this |
- * observed set ensures that each object in the transitive closure of |
- * dependencies is only observed once. The observedSet acts as a write barrier |
- * such that whenever any change comes through, all Observers are checked for |
- * changed values. |
- * |
- * Note that this optimization is explicitly moving work from setup-time to |
- * change-time. |
- * |
- * TODO(rafaelw): Implement "garbage collection". In order to move work off |
- * the critical path, when Observers are closed, their observed objects are |
- * not Object.unobserve(d). As a result, it's possible that if the observedSet |
- * is kept open, but some Observers have been closed, it could cause "leaks" |
- * (prevent otherwise collectable objects from being collected). At some |
- * point, we should implement incremental "gc" which keeps a list of |
- * observedSets which may need clean-up and does small amounts of cleanup on a |
- * timeout until all is clean. |
- */ |
- |
- function getObservedObject(observer, object, arrayObserve) { |
- var dir = observedObjectCache.pop() || newObservedObject(); |
- dir.open(observer); |
- dir.observe(object, arrayObserve); |
- return dir; |
- } |
- |
- var observedSetCache = []; |
- |
- function newObservedSet() { |
- var observerCount = 0; |
- var observers = []; |
- var objects = []; |
- var rootObj; |
- var rootObjProps; |
- |
- function observe(obj, prop) { |
- if (!obj) |
- return; |
- |
- if (obj === rootObj) |
- rootObjProps[prop] = true; |
- |
- if (objects.indexOf(obj) < 0) { |
- objects.push(obj); |
- Object.observe(obj, callback); |
- } |
- |
- observe(Object.getPrototypeOf(obj), prop); |
- } |
- |
- function allRootObjNonObservedProps(recs) { |
- for (var i = 0; i < recs.length; i++) { |
- var rec = recs[i]; |
- if (rec.object !== rootObj || |
- rootObjProps[rec.name] || |
- rec.type === 'setPrototype') { |
- return false; |
- } |
- } |
- return true; |
- } |
- |
- function callback(recs) { |
- if (allRootObjNonObservedProps(recs)) |
- return; |
- |
- var observer; |
- for (var i = 0; i < observers.length; i++) { |
- observer = observers[i]; |
- if (observer.state_ == OPENED) { |
- observer.iterateObjects_(observe); |
- } |
- } |
- |
- for (var i = 0; i < observers.length; i++) { |
- observer = observers[i]; |
- if (observer.state_ == OPENED) { |
- observer.check_(); |
- } |
- } |
- } |
- |
- var record = { |
- object: undefined, |
- objects: objects, |
- open: function(obs, object) { |
- if (!rootObj) { |
- rootObj = object; |
- rootObjProps = {}; |
- } |
- |
- observers.push(obs); |
- observerCount++; |
- obs.iterateObjects_(observe); |
- }, |
- close: function(obs) { |
- observerCount--; |
- if (observerCount > 0) { |
- return; |
- } |
- |
- for (var i = 0; i < objects.length; i++) { |
- Object.unobserve(objects[i], callback); |
- Observer.unobservedCount++; |
- } |
- |
- observers.length = 0; |
- objects.length = 0; |
- rootObj = undefined; |
- rootObjProps = undefined; |
- observedSetCache.push(this); |
- } |
- }; |
- |
- return record; |
- } |
- |
- var lastObservedSet; |
- |
- function getObservedSet(observer, obj) { |
- if (!lastObservedSet || lastObservedSet.object !== obj) { |
- lastObservedSet = observedSetCache.pop() || newObservedSet(); |
- lastObservedSet.object = obj; |
- } |
- lastObservedSet.open(observer, obj); |
- return lastObservedSet; |
- } |
- |
- var UNOPENED = 0; |
- var OPENED = 1; |
- var CLOSED = 2; |
- var RESETTING = 3; |
- |
- var nextObserverId = 1; |
- |
- function Observer() { |
- this.state_ = UNOPENED; |
- this.callback_ = undefined; |
- this.target_ = undefined; // TODO(rafaelw): Should be WeakRef |
- this.directObserver_ = undefined; |
- this.value_ = undefined; |
- this.id_ = nextObserverId++; |
- } |
- |
- Observer.prototype = { |
- open: function(callback, target) { |
- if (this.state_ != UNOPENED) |
- throw Error('Observer has already been opened.'); |
- |
- addToAll(this); |
- this.callback_ = callback; |
- this.target_ = target; |
- this.connect_(); |
- this.state_ = OPENED; |
- return this.value_; |
- }, |
- |
- close: function() { |
- if (this.state_ != OPENED) |
- return; |
- |
- removeFromAll(this); |
- this.disconnect_(); |
- this.value_ = undefined; |
- this.callback_ = undefined; |
- this.target_ = undefined; |
- this.state_ = CLOSED; |
- }, |
- |
- deliver: function() { |
- if (this.state_ != OPENED) |
- return; |
- |
- dirtyCheck(this); |
- }, |
- |
- report_: function(changes) { |
- try { |
- this.callback_.apply(this.target_, changes); |
- } catch (ex) { |
- Observer._errorThrownDuringCallback = true; |
- console.error('Exception caught during observer callback: ' + |
- (ex.stack || ex)); |
- } |
- }, |
- |
- discardChanges: function() { |
- this.check_(undefined, true); |
- return this.value_; |
- } |
- } |
- |
- var collectObservers = !hasObserve; |
- var allObservers; |
- Observer._allObserversCount = 0; |
- |
- if (collectObservers) { |
- allObservers = []; |
- } |
- |
- function addToAll(observer) { |
- Observer._allObserversCount++; |
- if (!collectObservers) |
- return; |
- |
- allObservers.push(observer); |
- } |
- |
- function removeFromAll(observer) { |
- Observer._allObserversCount--; |
- } |
- |
- var runningMicrotaskCheckpoint = false; |
- |
- var hasDebugForceFullDelivery = hasObserve && hasEval && (function() { |
- try { |
- eval('%RunMicrotasks()'); |
- return true; |
- } catch (ex) { |
- return false; |
- } |
- })(); |
- |
- global.Platform = global.Platform || {}; |
- |
- global.Platform.performMicrotaskCheckpoint = function() { |
- if (runningMicrotaskCheckpoint) |
- return; |
- |
- if (hasDebugForceFullDelivery) { |
- eval('%RunMicrotasks()'); |
- return; |
- } |
- |
- if (!collectObservers) |
- return; |
- |
- runningMicrotaskCheckpoint = true; |
- |
- var cycles = 0; |
- var anyChanged, toCheck; |
- |
- do { |
- cycles++; |
- toCheck = allObservers; |
- allObservers = []; |
- anyChanged = false; |
- |
- for (var i = 0; i < toCheck.length; i++) { |
- var observer = toCheck[i]; |
- if (observer.state_ != OPENED) |
- continue; |
- |
- if (observer.check_()) |
- anyChanged = true; |
- |
- allObservers.push(observer); |
- } |
- if (runEOMTasks()) |
- anyChanged = true; |
- } while (cycles < MAX_DIRTY_CHECK_CYCLES && anyChanged); |
- |
- if (global.testingExposeCycleCount) |
- global.dirtyCheckCycleCount = cycles; |
- |
- runningMicrotaskCheckpoint = false; |
- }; |
- |
- if (collectObservers) { |
- global.Platform.clearObservers = function() { |
- allObservers = []; |
- }; |
- } |
- |
- function ObjectObserver(object) { |
- Observer.call(this); |
- this.value_ = object; |
- this.oldObject_ = undefined; |
- } |
- |
- ObjectObserver.prototype = createObject({ |
- __proto__: Observer.prototype, |
- |
- arrayObserve: false, |
- |
- connect_: function(callback, target) { |
- if (hasObserve) { |
- this.directObserver_ = getObservedObject(this, this.value_, |
- this.arrayObserve); |
- } else { |
- this.oldObject_ = this.copyObject(this.value_); |
- } |
- |
- }, |
- |
- copyObject: function(object) { |
- var copy = Array.isArray(object) ? [] : {}; |
- for (var prop in object) { |
- copy[prop] = object[prop]; |
- }; |
- if (Array.isArray(object)) |
- copy.length = object.length; |
- return copy; |
- }, |
- |
- check_: function(changeRecords, skipChanges) { |
- var diff; |
- var oldValues; |
- if (hasObserve) { |
- if (!changeRecords) |
- return false; |
- |
- oldValues = {}; |
- diff = diffObjectFromChangeRecords(this.value_, changeRecords, |
- oldValues); |
- } else { |
- oldValues = this.oldObject_; |
- diff = diffObjectFromOldObject(this.value_, this.oldObject_); |
- } |
- |
- if (diffIsEmpty(diff)) |
- return false; |
- |
- if (!hasObserve) |
- this.oldObject_ = this.copyObject(this.value_); |
- |
- this.report_([ |
- diff.added || {}, |
- diff.removed || {}, |
- diff.changed || {}, |
- function(property) { |
- return oldValues[property]; |
- } |
- ]); |
- |
- return true; |
- }, |
- |
- disconnect_: function() { |
- if (hasObserve) { |
- this.directObserver_.close(); |
- this.directObserver_ = undefined; |
- } else { |
- this.oldObject_ = undefined; |
- } |
- }, |
- |
- deliver: function() { |
- if (this.state_ != OPENED) |
- return; |
- |
- if (hasObserve) |
- this.directObserver_.deliver(false); |
- else |
- dirtyCheck(this); |
- }, |
- |
- discardChanges: function() { |
- if (this.directObserver_) |
- this.directObserver_.deliver(true); |
- else |
- this.oldObject_ = this.copyObject(this.value_); |
- |
- return this.value_; |
- } |
- }); |
- |
- function ArrayObserver(array) { |
- if (!Array.isArray(array)) |
- throw Error('Provided object is not an Array'); |
- ObjectObserver.call(this, array); |
- } |
- |
- ArrayObserver.prototype = createObject({ |
- |
- __proto__: ObjectObserver.prototype, |
- |
- arrayObserve: true, |
- |
- copyObject: function(arr) { |
- return arr.slice(); |
- }, |
- |
- check_: function(changeRecords) { |
- var splices; |
- if (hasObserve) { |
- if (!changeRecords) |
- return false; |
- splices = projectArraySplices(this.value_, changeRecords); |
- } else { |
- splices = calcSplices(this.value_, 0, this.value_.length, |
- this.oldObject_, 0, this.oldObject_.length); |
- } |
- |
- if (!splices || !splices.length) |
- return false; |
- |
- if (!hasObserve) |
- this.oldObject_ = this.copyObject(this.value_); |
- |
- this.report_([splices]); |
- return true; |
- } |
- }); |
- |
- ArrayObserver.applySplices = function(previous, current, splices) { |
- splices.forEach(function(splice) { |
- var spliceArgs = [splice.index, splice.removed.length]; |
- var addIndex = splice.index; |
- while (addIndex < splice.index + splice.addedCount) { |
- spliceArgs.push(current[addIndex]); |
- addIndex++; |
- } |
- |
- Array.prototype.splice.apply(previous, spliceArgs); |
- }); |
- }; |
- |
- function PathObserver(object, path) { |
- Observer.call(this); |
- |
- this.object_ = object; |
- this.path_ = getPath(path); |
- this.directObserver_ = undefined; |
- } |
- |
- PathObserver.prototype = createObject({ |
- __proto__: Observer.prototype, |
- |
- get path() { |
- return this.path_; |
- }, |
- |
- connect_: function() { |
- if (hasObserve) |
- this.directObserver_ = getObservedSet(this, this.object_); |
- |
- this.check_(undefined, true); |
- }, |
- |
- disconnect_: function() { |
- this.value_ = undefined; |
- |
- if (this.directObserver_) { |
- this.directObserver_.close(this); |
- this.directObserver_ = undefined; |
- } |
- }, |
- |
- iterateObjects_: function(observe) { |
- this.path_.iterateObjects(this.object_, observe); |
- }, |
- |
- check_: function(changeRecords, skipChanges) { |
- var oldValue = this.value_; |
- this.value_ = this.path_.getValueFrom(this.object_); |
- if (skipChanges || areSameValue(this.value_, oldValue)) |
- return false; |
- |
- this.report_([this.value_, oldValue, this]); |
- return true; |
- }, |
- |
- setValue: function(newValue) { |
- if (this.path_) |
- this.path_.setValueFrom(this.object_, newValue); |
- } |
- }); |
- |
- function CompoundObserver(reportChangesOnOpen) { |
- Observer.call(this); |
- |
- this.reportChangesOnOpen_ = reportChangesOnOpen; |
- this.value_ = []; |
- this.directObserver_ = undefined; |
- this.observed_ = []; |
- } |
- |
- var observerSentinel = {}; |
- |
- CompoundObserver.prototype = createObject({ |
- __proto__: Observer.prototype, |
- |
- connect_: function() { |
- if (hasObserve) { |
- var object; |
- var needsDirectObserver = false; |
- for (var i = 0; i < this.observed_.length; i += 2) { |
- object = this.observed_[i] |
- if (object !== observerSentinel) { |
- needsDirectObserver = true; |
- break; |
- } |
- } |
- |
- if (needsDirectObserver) |
- this.directObserver_ = getObservedSet(this, object); |
- } |
- |
- this.check_(undefined, !this.reportChangesOnOpen_); |
- }, |
- |
- disconnect_: function() { |
- for (var i = 0; i < this.observed_.length; i += 2) { |
- if (this.observed_[i] === observerSentinel) |
- this.observed_[i + 1].close(); |
- } |
- this.observed_.length = 0; |
- this.value_.length = 0; |
- |
- if (this.directObserver_) { |
- this.directObserver_.close(this); |
- this.directObserver_ = undefined; |
- } |
- }, |
- |
- addPath: function(object, path) { |
- if (this.state_ != UNOPENED && this.state_ != RESETTING) |
- throw Error('Cannot add paths once started.'); |
- |
- var path = getPath(path); |
- this.observed_.push(object, path); |
- if (!this.reportChangesOnOpen_) |
- return; |
- var index = this.observed_.length / 2 - 1; |
- this.value_[index] = path.getValueFrom(object); |
- }, |
- |
- addObserver: function(observer) { |
- if (this.state_ != UNOPENED && this.state_ != RESETTING) |
- throw Error('Cannot add observers once started.'); |
- |
- this.observed_.push(observerSentinel, observer); |
- if (!this.reportChangesOnOpen_) |
- return; |
- var index = this.observed_.length / 2 - 1; |
- this.value_[index] = observer.open(this.deliver, this); |
- }, |
- |
- startReset: function() { |
- if (this.state_ != OPENED) |
- throw Error('Can only reset while open'); |
- |
- this.state_ = RESETTING; |
- this.disconnect_(); |
- }, |
- |
- finishReset: function() { |
- if (this.state_ != RESETTING) |
- throw Error('Can only finishReset after startReset'); |
- this.state_ = OPENED; |
- this.connect_(); |
- |
- return this.value_; |
- }, |
- |
- iterateObjects_: function(observe) { |
- var object; |
- for (var i = 0; i < this.observed_.length; i += 2) { |
- object = this.observed_[i] |
- if (object !== observerSentinel) |
- this.observed_[i + 1].iterateObjects(object, observe) |
- } |
- }, |
- |
- check_: function(changeRecords, skipChanges) { |
- var oldValues; |
- for (var i = 0; i < this.observed_.length; i += 2) { |
- var object = this.observed_[i]; |
- var path = this.observed_[i+1]; |
- var value; |
- if (object === observerSentinel) { |
- var observable = path; |
- value = this.state_ === UNOPENED ? |
- observable.open(this.deliver, this) : |
- observable.discardChanges(); |
- } else { |
- value = path.getValueFrom(object); |
- } |
- |
- if (skipChanges) { |
- this.value_[i / 2] = value; |
- continue; |
- } |
- |
- if (areSameValue(value, this.value_[i / 2])) |
- continue; |
- |
- oldValues = oldValues || []; |
- oldValues[i / 2] = this.value_[i / 2]; |
- this.value_[i / 2] = value; |
- } |
- |
- if (!oldValues) |
- return false; |
- |
- // TODO(rafaelw): Having observed_ as the third callback arg here is |
- // pretty lame API. Fix. |
- this.report_([this.value_, oldValues, this.observed_]); |
- return true; |
- } |
- }); |
- |
- function identFn(value) { return value; } |
- |
- function ObserverTransform(observable, getValueFn, setValueFn, |
- dontPassThroughSet) { |
- this.callback_ = undefined; |
- this.target_ = undefined; |
- this.value_ = undefined; |
- this.observable_ = observable; |
- this.getValueFn_ = getValueFn || identFn; |
- this.setValueFn_ = setValueFn || identFn; |
- // TODO(rafaelw): This is a temporary hack. PolymerExpressions needs this |
- // at the moment because of a bug in it's dependency tracking. |
- this.dontPassThroughSet_ = dontPassThroughSet; |
- } |
- |
- ObserverTransform.prototype = { |
- open: function(callback, target) { |
- this.callback_ = callback; |
- this.target_ = target; |
- this.value_ = |
- this.getValueFn_(this.observable_.open(this.observedCallback_, this)); |
- return this.value_; |
- }, |
- |
- observedCallback_: function(value) { |
- value = this.getValueFn_(value); |
- if (areSameValue(value, this.value_)) |
- return; |
- var oldValue = this.value_; |
- this.value_ = value; |
- this.callback_.call(this.target_, this.value_, oldValue); |
- }, |
- |
- discardChanges: function() { |
- this.value_ = this.getValueFn_(this.observable_.discardChanges()); |
- return this.value_; |
- }, |
- |
- deliver: function() { |
- return this.observable_.deliver(); |
- }, |
- |
- setValue: function(value) { |
- value = this.setValueFn_(value); |
- if (!this.dontPassThroughSet_ && this.observable_.setValue) |
- return this.observable_.setValue(value); |
- }, |
- |
- close: function() { |
- if (this.observable_) |
- this.observable_.close(); |
- this.callback_ = undefined; |
- this.target_ = undefined; |
- this.observable_ = undefined; |
- this.value_ = undefined; |
- this.getValueFn_ = undefined; |
- this.setValueFn_ = undefined; |
- } |
- } |
- |
- var expectedRecordTypes = { |
- add: true, |
- update: true, |
- delete: true |
- }; |
- |
- function diffObjectFromChangeRecords(object, changeRecords, oldValues) { |
- var added = {}; |
- var removed = {}; |
- |
- for (var i = 0; i < changeRecords.length; i++) { |
- var record = changeRecords[i]; |
- if (!expectedRecordTypes[record.type]) { |
- console.error('Unknown changeRecord type: ' + record.type); |
- console.error(record); |
- continue; |
- } |
- |
- if (!(record.name in oldValues)) |
- oldValues[record.name] = record.oldValue; |
- |
- if (record.type == 'update') |
- continue; |
- |
- if (record.type == 'add') { |
- if (record.name in removed) |
- delete removed[record.name]; |
- else |
- added[record.name] = true; |
- |
- continue; |
- } |
- |
- // type = 'delete' |
- if (record.name in added) { |
- delete added[record.name]; |
- delete oldValues[record.name]; |
- } else { |
- removed[record.name] = true; |
- } |
- } |
- |
- for (var prop in added) |
- added[prop] = object[prop]; |
- |
- for (var prop in removed) |
- removed[prop] = undefined; |
- |
- var changed = {}; |
- for (var prop in oldValues) { |
- if (prop in added || prop in removed) |
- continue; |
- |
- var newValue = object[prop]; |
- if (oldValues[prop] !== newValue) |
- changed[prop] = newValue; |
- } |
- |
- return { |
- added: added, |
- removed: removed, |
- changed: changed |
- }; |
- } |
- |
- function newSplice(index, removed, addedCount) { |
- return { |
- index: index, |
- removed: removed, |
- addedCount: addedCount |
- }; |
- } |
- |
- var EDIT_LEAVE = 0; |
- var EDIT_UPDATE = 1; |
- var EDIT_ADD = 2; |
- var EDIT_DELETE = 3; |
- |
- function ArraySplice() {} |
- |
- ArraySplice.prototype = { |
- |
- // Note: This function is *based* on the computation of the Levenshtein |
- // "edit" distance. The one change is that "updates" are treated as two |
- // edits - not one. With Array splices, an update is really a delete |
- // followed by an add. By retaining this, we optimize for "keeping" the |
- // maximum array items in the original array. For example: |
- // |
- // 'xxxx123' -> '123yyyy' |
- // |
- // With 1-edit updates, the shortest path would be just to update all seven |
- // characters. With 2-edit updates, we delete 4, leave 3, and add 4. This |
- // leaves the substring '123' intact. |
- calcEditDistances: function(current, currentStart, currentEnd, |
- old, oldStart, oldEnd) { |
- // "Deletion" columns |
- var rowCount = oldEnd - oldStart + 1; |
- var columnCount = currentEnd - currentStart + 1; |
- var distances = new Array(rowCount); |
- |
- // "Addition" rows. Initialize null column. |
- for (var i = 0; i < rowCount; i++) { |
- distances[i] = new Array(columnCount); |
- distances[i][0] = i; |
- } |
- |
- // Initialize null row |
- for (var j = 0; j < columnCount; j++) |
- distances[0][j] = j; |
- |
- for (var i = 1; i < rowCount; i++) { |
- for (var j = 1; j < columnCount; j++) { |
- if (this.equals(current[currentStart + j - 1], old[oldStart + i - 1])) |
- distances[i][j] = distances[i - 1][j - 1]; |
- else { |
- var north = distances[i - 1][j] + 1; |
- var west = distances[i][j - 1] + 1; |
- distances[i][j] = north < west ? north : west; |
- } |
- } |
- } |
- |
- return distances; |
- }, |
- |
- // This starts at the final weight, and walks "backward" by finding |
- // the minimum previous weight recursively until the origin of the weight |
- // matrix. |
- spliceOperationsFromEditDistances: function(distances) { |
- var i = distances.length - 1; |
- var j = distances[0].length - 1; |
- var current = distances[i][j]; |
- var edits = []; |
- while (i > 0 || j > 0) { |
- if (i == 0) { |
- edits.push(EDIT_ADD); |
- j--; |
- continue; |
- } |
- if (j == 0) { |
- edits.push(EDIT_DELETE); |
- i--; |
- continue; |
- } |
- var northWest = distances[i - 1][j - 1]; |
- var west = distances[i - 1][j]; |
- var north = distances[i][j - 1]; |
- |
- var min; |
- if (west < north) |
- min = west < northWest ? west : northWest; |
- else |
- min = north < northWest ? north : northWest; |
- |
- if (min == northWest) { |
- if (northWest == current) { |
- edits.push(EDIT_LEAVE); |
- } else { |
- edits.push(EDIT_UPDATE); |
- current = northWest; |
- } |
- i--; |
- j--; |
- } else if (min == west) { |
- edits.push(EDIT_DELETE); |
- i--; |
- current = west; |
- } else { |
- edits.push(EDIT_ADD); |
- j--; |
- current = north; |
- } |
- } |
- |
- edits.reverse(); |
- return edits; |
- }, |
- |
- /** |
- * Splice Projection functions: |
- * |
- * A splice map is a representation of how a previous array of items |
- * was transformed into a new array of items. Conceptually it is a list of |
- * tuples of |
- * |
- * <index, removed, addedCount> |
- * |
- * which are kept in ascending index order of. The tuple represents that at |
- * the |index|, |removed| sequence of items were removed, and counting forward |
- * from |index|, |addedCount| items were added. |
- */ |
- |
- /** |
- * Lacking individual splice mutation information, the minimal set of |
- * splices can be synthesized given the previous state and final state of an |
- * array. The basic approach is to calculate the edit distance matrix and |
- * choose the shortest path through it. |
- * |
- * Complexity: O(l * p) |
- * l: The length of the current array |
- * p: The length of the old array |
- */ |
- calcSplices: function(current, currentStart, currentEnd, |
- old, oldStart, oldEnd) { |
- var prefixCount = 0; |
- var suffixCount = 0; |
- |
- var minLength = Math.min(currentEnd - currentStart, oldEnd - oldStart); |
- if (currentStart == 0 && oldStart == 0) |
- prefixCount = this.sharedPrefix(current, old, minLength); |
- |
- if (currentEnd == current.length && oldEnd == old.length) |
- suffixCount = this.sharedSuffix(current, old, minLength - prefixCount); |
- |
- currentStart += prefixCount; |
- oldStart += prefixCount; |
- currentEnd -= suffixCount; |
- oldEnd -= suffixCount; |
- |
- if (currentEnd - currentStart == 0 && oldEnd - oldStart == 0) |
- return []; |
- |
- if (currentStart == currentEnd) { |
- var splice = newSplice(currentStart, [], 0); |
- while (oldStart < oldEnd) |
- splice.removed.push(old[oldStart++]); |
- |
- return [ splice ]; |
- } else if (oldStart == oldEnd) |
- return [ newSplice(currentStart, [], currentEnd - currentStart) ]; |
- |
- var ops = this.spliceOperationsFromEditDistances( |
- this.calcEditDistances(current, currentStart, currentEnd, |
- old, oldStart, oldEnd)); |
- |
- var splice = undefined; |
- var splices = []; |
- var index = currentStart; |
- var oldIndex = oldStart; |
- for (var i = 0; i < ops.length; i++) { |
- switch(ops[i]) { |
- case EDIT_LEAVE: |
- if (splice) { |
- splices.push(splice); |
- splice = undefined; |
- } |
- |
- index++; |
- oldIndex++; |
- break; |
- case EDIT_UPDATE: |
- if (!splice) |
- splice = newSplice(index, [], 0); |
- |
- splice.addedCount++; |
- index++; |
- |
- splice.removed.push(old[oldIndex]); |
- oldIndex++; |
- break; |
- case EDIT_ADD: |
- if (!splice) |
- splice = newSplice(index, [], 0); |
- |
- splice.addedCount++; |
- index++; |
- break; |
- case EDIT_DELETE: |
- if (!splice) |
- splice = newSplice(index, [], 0); |
- |
- splice.removed.push(old[oldIndex]); |
- oldIndex++; |
- break; |
- } |
- } |
- |
- if (splice) { |
- splices.push(splice); |
- } |
- return splices; |
- }, |
- |
- sharedPrefix: function(current, old, searchLength) { |
- for (var i = 0; i < searchLength; i++) |
- if (!this.equals(current[i], old[i])) |
- return i; |
- return searchLength; |
- }, |
- |
- sharedSuffix: function(current, old, searchLength) { |
- var index1 = current.length; |
- var index2 = old.length; |
- var count = 0; |
- while (count < searchLength && this.equals(current[--index1], old[--index2])) |
- count++; |
- |
- return count; |
- }, |
- |
- calculateSplices: function(current, previous) { |
- return this.calcSplices(current, 0, current.length, previous, 0, |
- previous.length); |
- }, |
- |
- equals: function(currentValue, previousValue) { |
- return currentValue === previousValue; |
- } |
- }; |
- |
- var arraySplice = new ArraySplice(); |
- |
- function calcSplices(current, currentStart, currentEnd, |
- old, oldStart, oldEnd) { |
- return arraySplice.calcSplices(current, currentStart, currentEnd, |
- old, oldStart, oldEnd); |
- } |
- |
- function intersect(start1, end1, start2, end2) { |
- // Disjoint |
- if (end1 < start2 || end2 < start1) |
- return -1; |
- |
- // Adjacent |
- if (end1 == start2 || end2 == start1) |
- return 0; |
- |
- // Non-zero intersect, span1 first |
- if (start1 < start2) { |
- if (end1 < end2) |
- return end1 - start2; // Overlap |
- else |
- return end2 - start2; // Contained |
- } else { |
- // Non-zero intersect, span2 first |
- if (end2 < end1) |
- return end2 - start1; // Overlap |
- else |
- return end1 - start1; // Contained |
- } |
- } |
- |
- function mergeSplice(splices, index, removed, addedCount) { |
- |
- var splice = newSplice(index, removed, addedCount); |
- |
- var inserted = false; |
- var insertionOffset = 0; |
- |
- for (var i = 0; i < splices.length; i++) { |
- var current = splices[i]; |
- current.index += insertionOffset; |
- |
- if (inserted) |
- continue; |
- |
- var intersectCount = intersect(splice.index, |
- splice.index + splice.removed.length, |
- current.index, |
- current.index + current.addedCount); |
- |
- if (intersectCount >= 0) { |
- // Merge the two splices |
- |
- splices.splice(i, 1); |
- i--; |
- |
- insertionOffset -= current.addedCount - current.removed.length; |
- |
- splice.addedCount += current.addedCount - intersectCount; |
- var deleteCount = splice.removed.length + |
- current.removed.length - intersectCount; |
- |
- if (!splice.addedCount && !deleteCount) { |
- // merged splice is a noop. discard. |
- inserted = true; |
- } else { |
- var removed = current.removed; |
- |
- if (splice.index < current.index) { |
- // some prefix of splice.removed is prepended to current.removed. |
- var prepend = splice.removed.slice(0, current.index - splice.index); |
- Array.prototype.push.apply(prepend, removed); |
- removed = prepend; |
- } |
- |
- if (splice.index + splice.removed.length > current.index + current.addedCount) { |
- // some suffix of splice.removed is appended to current.removed. |
- var append = splice.removed.slice(current.index + current.addedCount - splice.index); |
- Array.prototype.push.apply(removed, append); |
- } |
- |
- splice.removed = removed; |
- if (current.index < splice.index) { |
- splice.index = current.index; |
- } |
- } |
- } else if (splice.index < current.index) { |
- // Insert splice here. |
- |
- inserted = true; |
- |
- splices.splice(i, 0, splice); |
- i++; |
- |
- var offset = splice.addedCount - splice.removed.length |
- current.index += offset; |
- insertionOffset += offset; |
- } |
- } |
- |
- if (!inserted) |
- splices.push(splice); |
- } |
- |
- function createInitialSplices(array, changeRecords) { |
- var splices = []; |
- |
- for (var i = 0; i < changeRecords.length; i++) { |
- var record = changeRecords[i]; |
- switch(record.type) { |
- case 'splice': |
- mergeSplice(splices, record.index, record.removed.slice(), record.addedCount); |
- break; |
- case 'add': |
- case 'update': |
- case 'delete': |
- if (!isIndex(record.name)) |
- continue; |
- var index = toNumber(record.name); |
- if (index < 0) |
- continue; |
- mergeSplice(splices, index, [record.oldValue], 1); |
- break; |
- default: |
- console.error('Unexpected record type: ' + JSON.stringify(record)); |
- break; |
- } |
- } |
- |
- return splices; |
- } |
- |
- function projectArraySplices(array, changeRecords) { |
- var splices = []; |
- |
- createInitialSplices(array, changeRecords).forEach(function(splice) { |
- if (splice.addedCount == 1 && splice.removed.length == 1) { |
- if (splice.removed[0] !== array[splice.index]) |
- splices.push(splice); |
- |
- return |
- }; |
- |
- splices = splices.concat(calcSplices(array, splice.index, splice.index + splice.addedCount, |
- splice.removed, 0, splice.removed.length)); |
- }); |
- |
- return splices; |
- } |
- |
- global.Observer = Observer; |
- global.Observer.runEOM_ = runEOM; |
- global.Observer.observerSentinel_ = observerSentinel; // for testing. |
- global.Observer.hasObjectObserve = hasObserve; |
- global.ArrayObserver = ArrayObserver; |
- global.ArrayObserver.calculateSplices = function(current, previous) { |
- return arraySplice.calculateSplices(current, previous); |
- }; |
- |
- global.ArraySplice = ArraySplice; |
- global.ObjectObserver = ObjectObserver; |
- global.PathObserver = PathObserver; |
- global.CompoundObserver = CompoundObserver; |
- global.Path = Path; |
- global.ObserverTransform = ObserverTransform; |
-})(typeof global !== 'undefined' && global && typeof module !== 'undefined' && module ? global : this || window); |
- |
-// select ShadowDOM impl |
-if (Platform.flags.shadow) { |
- |
-// Copyright 2012 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-window.ShadowDOMPolyfill = {}; |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var constructorTable = new WeakMap(); |
- var nativePrototypeTable = new WeakMap(); |
- var wrappers = Object.create(null); |
- |
- function detectEval() { |
- // Don't test for eval if we're running in a Chrome App environment. |
- // We check for APIs set that only exist in a Chrome App context. |
- if (typeof chrome !== 'undefined' && chrome.app && chrome.app.runtime) { |
- return false; |
- } |
- |
- try { |
- var f = new Function('return true;'); |
- return f(); |
- } catch (ex) { |
- return false; |
- } |
- } |
- |
- var hasEval = detectEval(); |
- |
- function assert(b) { |
- if (!b) |
- throw new Error('Assertion failed'); |
- }; |
- |
- var defineProperty = Object.defineProperty; |
- var getOwnPropertyNames = Object.getOwnPropertyNames; |
- var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor; |
- |
- function mixin(to, from) { |
- var names = getOwnPropertyNames(from); |
- for (var i = 0; i < names.length; i++) { |
- var name = names[i]; |
- defineProperty(to, name, getOwnPropertyDescriptor(from, name)); |
- } |
- return to; |
- }; |
- |
- function mixinStatics(to, from) { |
- var names = getOwnPropertyNames(from); |
- for (var i = 0; i < names.length; i++) { |
- var name = names[i]; |
- switch (name) { |
- case 'arguments': |
- case 'caller': |
- case 'length': |
- case 'name': |
- case 'prototype': |
- case 'toString': |
- continue; |
- } |
- defineProperty(to, name, getOwnPropertyDescriptor(from, name)); |
- } |
- return to; |
- }; |
- |
- function oneOf(object, propertyNames) { |
- for (var i = 0; i < propertyNames.length; i++) { |
- if (propertyNames[i] in object) |
- return propertyNames[i]; |
- } |
- } |
- |
- var nonEnumerableDataDescriptor = { |
- value: undefined, |
- configurable: true, |
- enumerable: false, |
- writable: true |
- }; |
- |
- function defineNonEnumerableDataProperty(object, name, value) { |
- nonEnumerableDataDescriptor.value = value; |
- defineProperty(object, name, nonEnumerableDataDescriptor); |
- } |
- |
- // Mozilla's old DOM bindings are bretty busted: |
- // https://bugzilla.mozilla.org/show_bug.cgi?id=855844 |
- // Make sure they are create before we start modifying things. |
- getOwnPropertyNames(window); |
- |
- function getWrapperConstructor(node) { |
- var nativePrototype = node.__proto__ || Object.getPrototypeOf(node); |
- var wrapperConstructor = constructorTable.get(nativePrototype); |
- if (wrapperConstructor) |
- return wrapperConstructor; |
- |
- var parentWrapperConstructor = getWrapperConstructor(nativePrototype); |
- |
- var GeneratedWrapper = createWrapperConstructor(parentWrapperConstructor); |
- registerInternal(nativePrototype, GeneratedWrapper, node); |
- |
- return GeneratedWrapper; |
- } |
- |
- function addForwardingProperties(nativePrototype, wrapperPrototype) { |
- installProperty(nativePrototype, wrapperPrototype, true); |
- } |
- |
- function registerInstanceProperties(wrapperPrototype, instanceObject) { |
- installProperty(instanceObject, wrapperPrototype, false); |
- } |
- |
- var isFirefox = /Firefox/.test(navigator.userAgent); |
- |
- // This is used as a fallback when getting the descriptor fails in |
- // installProperty. |
- var dummyDescriptor = { |
- get: function() {}, |
- set: function(v) {}, |
- configurable: true, |
- enumerable: true |
- }; |
- |
- function isEventHandlerName(name) { |
- return /^on[a-z]+$/.test(name); |
- } |
- |
- function isIdentifierName(name) { |
- return /^\w[a-zA-Z_0-9]*$/.test(name); |
- } |
- |
- function getGetter(name) { |
- return hasEval && isIdentifierName(name) ? |
- new Function('return this.impl.' + name) : |
- function() { return this.impl[name]; }; |
- } |
- |
- function getSetter(name) { |
- return hasEval && isIdentifierName(name) ? |
- new Function('v', 'this.impl.' + name + ' = v') : |
- function(v) { this.impl[name] = v; }; |
- } |
- |
- function getMethod(name) { |
- return hasEval && isIdentifierName(name) ? |
- new Function('return this.impl.' + name + |
- '.apply(this.impl, arguments)') : |
- function() { return this.impl[name].apply(this.impl, arguments); }; |
- } |
- |
- function getDescriptor(source, name) { |
- try { |
- return Object.getOwnPropertyDescriptor(source, name); |
- } catch (ex) { |
- // JSC and V8 both use data properties instead of accessors which can |
- // cause getting the property desciptor to throw an exception. |
- // https://bugs.webkit.org/show_bug.cgi?id=49739 |
- return dummyDescriptor; |
- } |
- } |
- |
- function installProperty(source, target, allowMethod, opt_blacklist) { |
- var names = getOwnPropertyNames(source); |
- for (var i = 0; i < names.length; i++) { |
- var name = names[i]; |
- if (name === 'polymerBlackList_') |
- continue; |
- |
- if (name in target) |
- continue; |
- |
- if (source.polymerBlackList_ && source.polymerBlackList_[name]) |
- continue; |
- |
- if (isFirefox) { |
- // Tickle Firefox's old bindings. |
- source.__lookupGetter__(name); |
- } |
- var descriptor = getDescriptor(source, name); |
- var getter, setter; |
- if (allowMethod && typeof descriptor.value === 'function') { |
- target[name] = getMethod(name); |
- continue; |
- } |
- |
- var isEvent = isEventHandlerName(name); |
- if (isEvent) |
- getter = scope.getEventHandlerGetter(name); |
- else |
- getter = getGetter(name); |
- |
- if (descriptor.writable || descriptor.set) { |
- if (isEvent) |
- setter = scope.getEventHandlerSetter(name); |
- else |
- setter = getSetter(name); |
- } |
- |
- defineProperty(target, name, { |
- get: getter, |
- set: setter, |
- configurable: descriptor.configurable, |
- enumerable: descriptor.enumerable |
- }); |
- } |
- } |
- |
- /** |
- * @param {Function} nativeConstructor |
- * @param {Function} wrapperConstructor |
- * @param {Object=} opt_instance If present, this is used to extract |
- * properties from an instance object. |
- */ |
- function register(nativeConstructor, wrapperConstructor, opt_instance) { |
- var nativePrototype = nativeConstructor.prototype; |
- registerInternal(nativePrototype, wrapperConstructor, opt_instance); |
- mixinStatics(wrapperConstructor, nativeConstructor); |
- } |
- |
- function registerInternal(nativePrototype, wrapperConstructor, opt_instance) { |
- var wrapperPrototype = wrapperConstructor.prototype; |
- assert(constructorTable.get(nativePrototype) === undefined); |
- |
- constructorTable.set(nativePrototype, wrapperConstructor); |
- nativePrototypeTable.set(wrapperPrototype, nativePrototype); |
- |
- addForwardingProperties(nativePrototype, wrapperPrototype); |
- if (opt_instance) |
- registerInstanceProperties(wrapperPrototype, opt_instance); |
- |
- defineNonEnumerableDataProperty( |
- wrapperPrototype, 'constructor', wrapperConstructor); |
- // Set it again. Some VMs optimizes objects that are used as prototypes. |
- wrapperConstructor.prototype = wrapperPrototype; |
- } |
- |
- function isWrapperFor(wrapperConstructor, nativeConstructor) { |
- return constructorTable.get(nativeConstructor.prototype) === |
- wrapperConstructor; |
- } |
- |
- /** |
- * Creates a generic wrapper constructor based on |object| and its |
- * constructor. |
- * @param {Node} object |
- * @return {Function} The generated constructor. |
- */ |
- function registerObject(object) { |
- var nativePrototype = Object.getPrototypeOf(object); |
- |
- var superWrapperConstructor = getWrapperConstructor(nativePrototype); |
- var GeneratedWrapper = createWrapperConstructor(superWrapperConstructor); |
- registerInternal(nativePrototype, GeneratedWrapper, object); |
- |
- return GeneratedWrapper; |
- } |
- |
- function createWrapperConstructor(superWrapperConstructor) { |
- function GeneratedWrapper(node) { |
- superWrapperConstructor.call(this, node); |
- } |
- var p = Object.create(superWrapperConstructor.prototype); |
- p.constructor = GeneratedWrapper; |
- GeneratedWrapper.prototype = p; |
- |
- return GeneratedWrapper; |
- } |
- |
- var OriginalDOMImplementation = window.DOMImplementation; |
- var OriginalEventTarget = window.EventTarget; |
- var OriginalEvent = window.Event; |
- var OriginalNode = window.Node; |
- var OriginalWindow = window.Window; |
- var OriginalRange = window.Range; |
- var OriginalCanvasRenderingContext2D = window.CanvasRenderingContext2D; |
- var OriginalWebGLRenderingContext = window.WebGLRenderingContext; |
- var OriginalSVGElementInstance = window.SVGElementInstance; |
- |
- function isWrapper(object) { |
- return object instanceof wrappers.EventTarget || |
- object instanceof wrappers.Event || |
- object instanceof wrappers.Range || |
- object instanceof wrappers.DOMImplementation || |
- object instanceof wrappers.CanvasRenderingContext2D || |
- wrappers.WebGLRenderingContext && |
- object instanceof wrappers.WebGLRenderingContext; |
- } |
- |
- function isNative(object) { |
- return OriginalEventTarget && object instanceof OriginalEventTarget || |
- object instanceof OriginalNode || |
- object instanceof OriginalEvent || |
- object instanceof OriginalWindow || |
- object instanceof OriginalRange || |
- object instanceof OriginalDOMImplementation || |
- object instanceof OriginalCanvasRenderingContext2D || |
- OriginalWebGLRenderingContext && |
- object instanceof OriginalWebGLRenderingContext || |
- OriginalSVGElementInstance && |
- object instanceof OriginalSVGElementInstance; |
- } |
- |
- /** |
- * Wraps a node in a WrapperNode. If there already exists a wrapper for the |
- * |node| that wrapper is returned instead. |
- * @param {Node} node |
- * @return {WrapperNode} |
- */ |
- function wrap(impl) { |
- if (impl === null) |
- return null; |
- |
- assert(isNative(impl)); |
- return impl.polymerWrapper_ || |
- (impl.polymerWrapper_ = new (getWrapperConstructor(impl))(impl)); |
- } |
- |
- /** |
- * Unwraps a wrapper and returns the node it is wrapping. |
- * @param {WrapperNode} wrapper |
- * @return {Node} |
- */ |
- function unwrap(wrapper) { |
- if (wrapper === null) |
- return null; |
- assert(isWrapper(wrapper)); |
- return wrapper.impl; |
- } |
- |
- /** |
- * Unwraps object if it is a wrapper. |
- * @param {Object} object |
- * @return {Object} The native implementation object. |
- */ |
- function unwrapIfNeeded(object) { |
- return object && isWrapper(object) ? unwrap(object) : object; |
- } |
- |
- /** |
- * Wraps object if it is not a wrapper. |
- * @param {Object} object |
- * @return {Object} The wrapper for object. |
- */ |
- function wrapIfNeeded(object) { |
- return object && !isWrapper(object) ? wrap(object) : object; |
- } |
- |
- /** |
- * Overrides the current wrapper (if any) for node. |
- * @param {Node} node |
- * @param {WrapperNode=} wrapper If left out the wrapper will be created as |
- * needed next time someone wraps the node. |
- */ |
- function rewrap(node, wrapper) { |
- if (wrapper === null) |
- return; |
- assert(isNative(node)); |
- assert(wrapper === undefined || isWrapper(wrapper)); |
- node.polymerWrapper_ = wrapper; |
- } |
- |
- var getterDescriptor = { |
- get: undefined, |
- configurable: true, |
- enumerable: true |
- }; |
- |
- function defineGetter(constructor, name, getter) { |
- getterDescriptor.get = getter; |
- defineProperty(constructor.prototype, name, getterDescriptor); |
- } |
- |
- function defineWrapGetter(constructor, name) { |
- defineGetter(constructor, name, function() { |
- return wrap(this.impl[name]); |
- }); |
- } |
- |
- /** |
- * Forwards existing methods on the native object to the wrapper methods. |
- * This does not wrap any of the arguments or the return value since the |
- * wrapper implementation already takes care of that. |
- * @param {Array.<Function>} constructors |
- * @parem {Array.<string>} names |
- */ |
- function forwardMethodsToWrapper(constructors, names) { |
- constructors.forEach(function(constructor) { |
- names.forEach(function(name) { |
- constructor.prototype[name] = function() { |
- var w = wrapIfNeeded(this); |
- return w[name].apply(w, arguments); |
- }; |
- }); |
- }); |
- } |
- |
- scope.assert = assert; |
- scope.constructorTable = constructorTable; |
- scope.defineGetter = defineGetter; |
- scope.defineWrapGetter = defineWrapGetter; |
- scope.forwardMethodsToWrapper = forwardMethodsToWrapper; |
- scope.isWrapper = isWrapper; |
- scope.isWrapperFor = isWrapperFor; |
- scope.mixin = mixin; |
- scope.nativePrototypeTable = nativePrototypeTable; |
- scope.oneOf = oneOf; |
- scope.registerObject = registerObject; |
- scope.registerWrapper = register; |
- scope.rewrap = rewrap; |
- scope.unwrap = unwrap; |
- scope.unwrapIfNeeded = unwrapIfNeeded; |
- scope.wrap = wrap; |
- scope.wrapIfNeeded = wrapIfNeeded; |
- scope.wrappers = wrappers; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-/* |
- * Copyright 2013 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(context) { |
- 'use strict'; |
- |
- var OriginalMutationObserver = window.MutationObserver; |
- var callbacks = []; |
- var pending = false; |
- var timerFunc; |
- |
- function handle() { |
- pending = false; |
- var copies = callbacks.slice(0); |
- callbacks = []; |
- for (var i = 0; i < copies.length; i++) { |
- (0, copies[i])(); |
- } |
- } |
- |
- if (OriginalMutationObserver) { |
- var counter = 1; |
- var observer = new OriginalMutationObserver(handle); |
- var textNode = document.createTextNode(counter); |
- observer.observe(textNode, {characterData: true}); |
- |
- timerFunc = function() { |
- counter = (counter + 1) % 2; |
- textNode.data = counter; |
- }; |
- |
- } else { |
- timerFunc = window.setImmediate || window.setTimeout; |
- } |
- |
- function setEndOfMicrotask(func) { |
- callbacks.push(func); |
- if (pending) |
- return; |
- pending = true; |
- timerFunc(handle, 0); |
- } |
- |
- context.setEndOfMicrotask = setEndOfMicrotask; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-/* |
- * Copyright 2013 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var setEndOfMicrotask = scope.setEndOfMicrotask |
- var wrapIfNeeded = scope.wrapIfNeeded |
- var wrappers = scope.wrappers; |
- |
- var registrationsTable = new WeakMap(); |
- var globalMutationObservers = []; |
- var isScheduled = false; |
- |
- function scheduleCallback(observer) { |
- if (isScheduled) |
- return; |
- setEndOfMicrotask(notifyObservers); |
- isScheduled = true; |
- } |
- |
- // http://dom.spec.whatwg.org/#mutation-observers |
- function notifyObservers() { |
- isScheduled = false; |
- |
- do { |
- var notifyList = globalMutationObservers.slice(); |
- var anyNonEmpty = false; |
- for (var i = 0; i < notifyList.length; i++) { |
- var mo = notifyList[i]; |
- var queue = mo.takeRecords(); |
- removeTransientObserversFor(mo); |
- if (queue.length) { |
- mo.callback_(queue, mo); |
- anyNonEmpty = true; |
- } |
- } |
- } while (anyNonEmpty); |
- } |
- |
- /** |
- * @param {string} type |
- * @param {Node} target |
- * @constructor |
- */ |
- function MutationRecord(type, target) { |
- this.type = type; |
- this.target = target; |
- this.addedNodes = new wrappers.NodeList(); |
- this.removedNodes = new wrappers.NodeList(); |
- this.previousSibling = null; |
- this.nextSibling = null; |
- this.attributeName = null; |
- this.attributeNamespace = null; |
- this.oldValue = null; |
- } |
- |
- /** |
- * Registers transient observers to ancestor and its ancesors for the node |
- * which was removed. |
- * @param {!Node} ancestor |
- * @param {!Node} node |
- */ |
- function registerTransientObservers(ancestor, node) { |
- for (; ancestor; ancestor = ancestor.parentNode) { |
- var registrations = registrationsTable.get(ancestor); |
- if (!registrations) |
- continue; |
- for (var i = 0; i < registrations.length; i++) { |
- var registration = registrations[i]; |
- if (registration.options.subtree) |
- registration.addTransientObserver(node); |
- } |
- } |
- } |
- |
- function removeTransientObserversFor(observer) { |
- for (var i = 0; i < observer.nodes_.length; i++) { |
- var node = observer.nodes_[i]; |
- var registrations = registrationsTable.get(node); |
- if (!registrations) |
- return; |
- for (var j = 0; j < registrations.length; j++) { |
- var registration = registrations[j]; |
- if (registration.observer === observer) |
- registration.removeTransientObservers(); |
- } |
- } |
- } |
- |
- // http://dom.spec.whatwg.org/#queue-a-mutation-record |
- function enqueueMutation(target, type, data) { |
- // 1. |
- var interestedObservers = Object.create(null); |
- var associatedStrings = Object.create(null); |
- |
- // 2. |
- for (var node = target; node; node = node.parentNode) { |
- // 3. |
- var registrations = registrationsTable.get(node); |
- if (!registrations) |
- continue; |
- for (var j = 0; j < registrations.length; j++) { |
- var registration = registrations[j]; |
- var options = registration.options; |
- // 1. |
- if (node !== target && !options.subtree) |
- continue; |
- |
- // 2. |
- if (type === 'attributes' && !options.attributes) |
- continue; |
- |
- // 3. If type is "attributes", options's attributeFilter is present, and |
- // either options's attributeFilter does not contain name or namespace |
- // is non-null, continue. |
- if (type === 'attributes' && options.attributeFilter && |
- (data.namespace !== null || |
- options.attributeFilter.indexOf(data.name) === -1)) { |
- continue; |
- } |
- |
- // 4. |
- if (type === 'characterData' && !options.characterData) |
- continue; |
- |
- // 5. |
- if (type === 'childList' && !options.childList) |
- continue; |
- |
- // 6. |
- var observer = registration.observer; |
- interestedObservers[observer.uid_] = observer; |
- |
- // 7. If either type is "attributes" and options's attributeOldValue is |
- // true, or type is "characterData" and options's characterDataOldValue |
- // is true, set the paired string of registered observer's observer in |
- // interested observers to oldValue. |
- if (type === 'attributes' && options.attributeOldValue || |
- type === 'characterData' && options.characterDataOldValue) { |
- associatedStrings[observer.uid_] = data.oldValue; |
- } |
- } |
- } |
- |
- var anyRecordsEnqueued = false; |
- |
- // 4. |
- for (var uid in interestedObservers) { |
- var observer = interestedObservers[uid]; |
- var record = new MutationRecord(type, target); |
- |
- // 2. |
- if ('name' in data && 'namespace' in data) { |
- record.attributeName = data.name; |
- record.attributeNamespace = data.namespace; |
- } |
- |
- // 3. |
- if (data.addedNodes) |
- record.addedNodes = data.addedNodes; |
- |
- // 4. |
- if (data.removedNodes) |
- record.removedNodes = data.removedNodes; |
- |
- // 5. |
- if (data.previousSibling) |
- record.previousSibling = data.previousSibling; |
- |
- // 6. |
- if (data.nextSibling) |
- record.nextSibling = data.nextSibling; |
- |
- // 7. |
- if (associatedStrings[uid] !== undefined) |
- record.oldValue = associatedStrings[uid]; |
- |
- // 8. |
- observer.records_.push(record); |
- |
- anyRecordsEnqueued = true; |
- } |
- |
- if (anyRecordsEnqueued) |
- scheduleCallback(); |
- } |
- |
- var slice = Array.prototype.slice; |
- |
- /** |
- * @param {!Object} options |
- * @constructor |
- */ |
- function MutationObserverOptions(options) { |
- this.childList = !!options.childList; |
- this.subtree = !!options.subtree; |
- |
- // 1. If either options' attributeOldValue or attributeFilter is present |
- // and options' attributes is omitted, set options' attributes to true. |
- if (!('attributes' in options) && |
- ('attributeOldValue' in options || 'attributeFilter' in options)) { |
- this.attributes = true; |
- } else { |
- this.attributes = !!options.attributes; |
- } |
- |
- // 2. If options' characterDataOldValue is present and options' |
- // characterData is omitted, set options' characterData to true. |
- if ('characterDataOldValue' in options && !('characterData' in options)) |
- this.characterData = true; |
- else |
- this.characterData = !!options.characterData; |
- |
- // 3. & 4. |
- if (!this.attributes && |
- (options.attributeOldValue || 'attributeFilter' in options) || |
- // 5. |
- !this.characterData && options.characterDataOldValue) { |
- throw new TypeError(); |
- } |
- |
- this.characterData = !!options.characterData; |
- this.attributeOldValue = !!options.attributeOldValue; |
- this.characterDataOldValue = !!options.characterDataOldValue; |
- if ('attributeFilter' in options) { |
- if (options.attributeFilter == null || |
- typeof options.attributeFilter !== 'object') { |
- throw new TypeError(); |
- } |
- this.attributeFilter = slice.call(options.attributeFilter); |
- } else { |
- this.attributeFilter = null; |
- } |
- } |
- |
- var uidCounter = 0; |
- |
- /** |
- * The class that maps to the DOM MutationObserver interface. |
- * @param {Function} callback. |
- * @constructor |
- */ |
- function MutationObserver(callback) { |
- this.callback_ = callback; |
- this.nodes_ = []; |
- this.records_ = []; |
- this.uid_ = ++uidCounter; |
- |
- // This will leak. There is no way to implement this without WeakRefs :'( |
- globalMutationObservers.push(this); |
- } |
- |
- MutationObserver.prototype = { |
- // http://dom.spec.whatwg.org/#dom-mutationobserver-observe |
- observe: function(target, options) { |
- target = wrapIfNeeded(target); |
- |
- var newOptions = new MutationObserverOptions(options); |
- |
- // 6. |
- var registration; |
- var registrations = registrationsTable.get(target); |
- if (!registrations) |
- registrationsTable.set(target, registrations = []); |
- |
- for (var i = 0; i < registrations.length; i++) { |
- if (registrations[i].observer === this) { |
- registration = registrations[i]; |
- // 6.1. |
- registration.removeTransientObservers(); |
- // 6.2. |
- registration.options = newOptions; |
- } |
- } |
- |
- // 7. |
- if (!registration) { |
- registration = new Registration(this, target, newOptions); |
- registrations.push(registration); |
- this.nodes_.push(target); |
- } |
- }, |
- |
- // http://dom.spec.whatwg.org/#dom-mutationobserver-disconnect |
- disconnect: function() { |
- this.nodes_.forEach(function(node) { |
- var registrations = registrationsTable.get(node); |
- for (var i = 0; i < registrations.length; i++) { |
- var registration = registrations[i]; |
- if (registration.observer === this) { |
- registrations.splice(i, 1); |
- // Each node can only have one registered observer associated with |
- // this observer. |
- break; |
- } |
- } |
- }, this); |
- this.records_ = []; |
- }, |
- |
- takeRecords: function() { |
- var copyOfRecords = this.records_; |
- this.records_ = []; |
- return copyOfRecords; |
- } |
- }; |
- |
- /** |
- * Class used to represent a registered observer. |
- * @param {MutationObserver} observer |
- * @param {Node} target |
- * @param {MutationObserverOptions} options |
- * @constructor |
- */ |
- function Registration(observer, target, options) { |
- this.observer = observer; |
- this.target = target; |
- this.options = options; |
- this.transientObservedNodes = []; |
- } |
- |
- Registration.prototype = { |
- /** |
- * Adds a transient observer on node. The transient observer gets removed |
- * next time we deliver the change records. |
- * @param {Node} node |
- */ |
- addTransientObserver: function(node) { |
- // Don't add transient observers on the target itself. We already have all |
- // the required listeners set up on the target. |
- if (node === this.target) |
- return; |
- |
- this.transientObservedNodes.push(node); |
- var registrations = registrationsTable.get(node); |
- if (!registrations) |
- registrationsTable.set(node, registrations = []); |
- |
- // We know that registrations does not contain this because we already |
- // checked if node === this.target. |
- registrations.push(this); |
- }, |
- |
- removeTransientObservers: function() { |
- var transientObservedNodes = this.transientObservedNodes; |
- this.transientObservedNodes = []; |
- |
- for (var i = 0; i < transientObservedNodes.length; i++) { |
- var node = transientObservedNodes[i]; |
- var registrations = registrationsTable.get(node); |
- for (var j = 0; j < registrations.length; j++) { |
- if (registrations[j] === this) { |
- registrations.splice(j, 1); |
- // Each node can only have one registered observer associated with |
- // this observer. |
- break; |
- } |
- } |
- } |
- } |
- }; |
- |
- scope.enqueueMutation = enqueueMutation; |
- scope.registerTransientObservers = registerTransientObservers; |
- scope.wrappers.MutationObserver = MutationObserver; |
- scope.wrappers.MutationRecord = MutationRecord; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-/** |
- * Copyright 2014 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- /** |
- * A tree scope represents the root of a tree. All nodes in a tree point to |
- * the same TreeScope object. The tree scope of a node get set the first time |
- * it is accessed or when a node is added or remove to a tree. |
- * |
- * The root is a Node that has no parent. |
- * |
- * The parent is another TreeScope. For ShadowRoots, it is the TreeScope of |
- * the host of the ShadowRoot. |
- * |
- * @param {!Node} root |
- * @param {TreeScope} parent |
- * @constructor |
- */ |
- function TreeScope(root, parent) { |
- /** @type {!Node} */ |
- this.root = root; |
- |
- /** @type {TreeScope} */ |
- this.parent = parent; |
- } |
- |
- TreeScope.prototype = { |
- get renderer() { |
- if (this.root instanceof scope.wrappers.ShadowRoot) { |
- return scope.getRendererForHost(this.root.host); |
- } |
- return null; |
- }, |
- |
- contains: function(treeScope) { |
- for (; treeScope; treeScope = treeScope.parent) { |
- if (treeScope === this) |
- return true; |
- } |
- return false; |
- } |
- }; |
- |
- function setTreeScope(node, treeScope) { |
- if (node.treeScope_ !== treeScope) { |
- node.treeScope_ = treeScope; |
- for (var sr = node.shadowRoot; sr; sr = sr.olderShadowRoot) { |
- sr.treeScope_.parent = treeScope; |
- } |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- setTreeScope(child, treeScope); |
- } |
- } |
- } |
- |
- function getTreeScope(node) { |
- if (node instanceof scope.wrappers.Window) { |
- debugger; |
- } |
- |
- if (node.treeScope_) |
- return node.treeScope_; |
- var parent = node.parentNode; |
- var treeScope; |
- if (parent) |
- treeScope = getTreeScope(parent); |
- else |
- treeScope = new TreeScope(node, null); |
- return node.treeScope_ = treeScope; |
- } |
- |
- scope.TreeScope = TreeScope; |
- scope.getTreeScope = getTreeScope; |
- scope.setTreeScope = setTreeScope; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var forwardMethodsToWrapper = scope.forwardMethodsToWrapper; |
- var getTreeScope = scope.getTreeScope; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- var wrappers = scope.wrappers; |
- |
- var wrappedFuns = new WeakMap(); |
- var listenersTable = new WeakMap(); |
- var handledEventsTable = new WeakMap(); |
- var currentlyDispatchingEvents = new WeakMap(); |
- var targetTable = new WeakMap(); |
- var currentTargetTable = new WeakMap(); |
- var relatedTargetTable = new WeakMap(); |
- var eventPhaseTable = new WeakMap(); |
- var stopPropagationTable = new WeakMap(); |
- var stopImmediatePropagationTable = new WeakMap(); |
- var eventHandlersTable = new WeakMap(); |
- var eventPathTable = new WeakMap(); |
- |
- function isShadowRoot(node) { |
- return node instanceof wrappers.ShadowRoot; |
- } |
- |
- function rootOfNode(node) { |
- return getTreeScope(node).root; |
- } |
- |
- // http://w3c.github.io/webcomponents/spec/shadow/#event-paths |
- function getEventPath(node, event) { |
- var path = []; |
- var current = node; |
- path.push(current); |
- while (current) { |
- // 4.1. |
- var destinationInsertionPoints = getDestinationInsertionPoints(current); |
- if (destinationInsertionPoints && destinationInsertionPoints.length > 0) { |
- // 4.1.1 |
- for (var i = 0; i < destinationInsertionPoints.length; i++) { |
- var insertionPoint = destinationInsertionPoints[i]; |
- // 4.1.1.1 |
- if (isShadowInsertionPoint(insertionPoint)) { |
- var shadowRoot = rootOfNode(insertionPoint); |
- // 4.1.1.1.2 |
- var olderShadowRoot = shadowRoot.olderShadowRoot; |
- if (olderShadowRoot) |
- path.push(olderShadowRoot); |
- } |
- |
- // 4.1.1.2 |
- path.push(insertionPoint); |
- } |
- |
- // 4.1.2 |
- current = destinationInsertionPoints[ |
- destinationInsertionPoints.length - 1]; |
- |
- // 4.2 |
- } else { |
- if (isShadowRoot(current)) { |
- if (inSameTree(node, current) && eventMustBeStopped(event)) { |
- // Stop this algorithm |
- break; |
- } |
- current = current.host; |
- path.push(current); |
- |
- // 4.2.2 |
- } else { |
- current = current.parentNode; |
- if (current) |
- path.push(current); |
- } |
- } |
- } |
- |
- return path; |
- } |
- |
- // http://w3c.github.io/webcomponents/spec/shadow/#dfn-events-always-stopped |
- function eventMustBeStopped(event) { |
- if (!event) |
- return false; |
- |
- switch (event.type) { |
- case 'abort': |
- case 'error': |
- case 'select': |
- case 'change': |
- case 'load': |
- case 'reset': |
- case 'resize': |
- case 'scroll': |
- case 'selectstart': |
- return true; |
- } |
- return false; |
- } |
- |
- // http://w3c.github.io/webcomponents/spec/shadow/#dfn-shadow-insertion-point |
- function isShadowInsertionPoint(node) { |
- return node instanceof HTMLShadowElement; |
- // and make sure that there are no shadow precing this? |
- // and that there is no content ancestor? |
- } |
- |
- function getDestinationInsertionPoints(node) { |
- return scope.getDestinationInsertionPoints(node); |
- } |
- |
- // http://w3c.github.io/webcomponents/spec/shadow/#event-retargeting |
- function eventRetargetting(path, currentTarget) { |
- if (path.length === 0) |
- return currentTarget; |
- |
- // The currentTarget might be the window object. Use its document for the |
- // purpose of finding the retargetted node. |
- if (currentTarget instanceof wrappers.Window) |
- currentTarget = currentTarget.document; |
- |
- var currentTargetTree = getTreeScope(currentTarget); |
- var originalTarget = path[0]; |
- var originalTargetTree = getTreeScope(originalTarget); |
- var relativeTargetTree = |
- lowestCommonInclusiveAncestor(currentTargetTree, originalTargetTree); |
- |
- for (var i = 0; i < path.length; i++) { |
- var node = path[i]; |
- if (getTreeScope(node) === relativeTargetTree) |
- return node; |
- } |
- |
- return path[path.length - 1]; |
- } |
- |
- function getTreeScopeAncestors(treeScope) { |
- var ancestors = []; |
- for (;treeScope; treeScope = treeScope.parent) { |
- ancestors.push(treeScope); |
- } |
- return ancestors; |
- } |
- |
- function lowestCommonInclusiveAncestor(tsA, tsB) { |
- var ancestorsA = getTreeScopeAncestors(tsA); |
- var ancestorsB = getTreeScopeAncestors(tsB); |
- |
- var result = null; |
- while (ancestorsA.length > 0 && ancestorsB.length > 0) { |
- var a = ancestorsA.pop(); |
- var b = ancestorsB.pop(); |
- if (a === b) |
- result = a; |
- else |
- break; |
- } |
- return result; |
- } |
- |
- function getTreeScopeRoot(ts) { |
- if (!ts.parent) |
- return ts; |
- return getTreeScopeRoot(ts.parent); |
- } |
- |
- function relatedTargetResolution(event, currentTarget, relatedTarget) { |
- // In case the current target is a window use its document for the purpose |
- // of retargetting the related target. |
- if (currentTarget instanceof wrappers.Window) |
- currentTarget = currentTarget.document; |
- |
- var currentTargetTree = getTreeScope(currentTarget); |
- var relatedTargetTree = getTreeScope(relatedTarget); |
- |
- var relatedTargetEventPath = getEventPath(relatedTarget, event); |
- |
- var lowestCommonAncestorTree; |
- |
- // 4 |
- var lowestCommonAncestorTree = |
- lowestCommonInclusiveAncestor(currentTargetTree, relatedTargetTree); |
- |
- // 5 |
- if (!lowestCommonAncestorTree) |
- lowestCommonAncestorTree = relatedTargetTree.root; |
- |
- // 6 |
- for (var commonAncestorTree = lowestCommonAncestorTree; |
- commonAncestorTree; |
- commonAncestorTree = commonAncestorTree.parent) { |
- // 6.1 |
- var adjustedRelatedTarget; |
- for (var i = 0; i < relatedTargetEventPath.length; i++) { |
- var node = relatedTargetEventPath[i]; |
- if (getTreeScope(node) === commonAncestorTree) |
- return node; |
- } |
- } |
- |
- return null; |
- } |
- |
- function inSameTree(a, b) { |
- return getTreeScope(a) === getTreeScope(b); |
- } |
- |
- var NONE = 0; |
- var CAPTURING_PHASE = 1; |
- var AT_TARGET = 2; |
- var BUBBLING_PHASE = 3; |
- |
- // pendingError is used to rethrow the first error we got during an event |
- // dispatch. The browser actually reports all errors but to do that we would |
- // need to rethrow the error asynchronously. |
- var pendingError; |
- |
- function dispatchOriginalEvent(originalEvent) { |
- // Make sure this event is only dispatched once. |
- if (handledEventsTable.get(originalEvent)) |
- return; |
- handledEventsTable.set(originalEvent, true); |
- dispatchEvent(wrap(originalEvent), wrap(originalEvent.target)); |
- if (pendingError) { |
- var err = pendingError; |
- pendingError = null; |
- throw err; |
- } |
- } |
- |
- function dispatchEvent(event, originalWrapperTarget) { |
- if (currentlyDispatchingEvents.get(event)) |
- throw new Error('InvalidStateError'); |
- |
- currentlyDispatchingEvents.set(event, true); |
- |
- // Render to ensure that the event path is correct. |
- scope.renderAllPending(); |
- var eventPath; |
- |
- // http://www.whatwg.org/specs/web-apps/current-work/multipage/webappapis.html#events-and-the-window-object |
- // All events dispatched on Nodes with a default view, except load events, |
- // should propagate to the Window. |
- |
- // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-end.html#the-end |
- var overrideTarget; |
- var win; |
- var type = event.type; |
- |
- // Should really be not cancelable too but since Firefox has a bug there |
- // we skip that check. |
- // https://bugzilla.mozilla.org/show_bug.cgi?id=999456 |
- if (type === 'load' && !event.bubbles) { |
- var doc = originalWrapperTarget; |
- if (doc instanceof wrappers.Document && (win = doc.defaultView)) { |
- overrideTarget = doc; |
- eventPath = []; |
- } |
- } |
- |
- if (!eventPath) { |
- if (originalWrapperTarget instanceof wrappers.Window) { |
- win = originalWrapperTarget; |
- eventPath = []; |
- } else { |
- eventPath = getEventPath(originalWrapperTarget, event); |
- |
- if (event.type !== 'load') { |
- var doc = eventPath[eventPath.length - 1]; |
- if (doc instanceof wrappers.Document) |
- win = doc.defaultView; |
- } |
- } |
- } |
- |
- eventPathTable.set(event, eventPath); |
- |
- if (dispatchCapturing(event, eventPath, win, overrideTarget)) { |
- if (dispatchAtTarget(event, eventPath, win, overrideTarget)) { |
- dispatchBubbling(event, eventPath, win, overrideTarget); |
- } |
- } |
- |
- eventPhaseTable.set(event, NONE); |
- currentTargetTable.delete(event, null); |
- currentlyDispatchingEvents.delete(event); |
- |
- return event.defaultPrevented; |
- } |
- |
- function dispatchCapturing(event, eventPath, win, overrideTarget) { |
- var phase = CAPTURING_PHASE; |
- |
- if (win) { |
- if (!invoke(win, event, phase, eventPath, overrideTarget)) |
- return false; |
- } |
- |
- for (var i = eventPath.length - 1; i > 0; i--) { |
- if (!invoke(eventPath[i], event, phase, eventPath, overrideTarget)) |
- return false; |
- } |
- |
- return true; |
- } |
- |
- function dispatchAtTarget(event, eventPath, win, overrideTarget) { |
- var phase = AT_TARGET; |
- var currentTarget = eventPath[0] || win; |
- return invoke(currentTarget, event, phase, eventPath, overrideTarget); |
- } |
- |
- function dispatchBubbling(event, eventPath, win, overrideTarget) { |
- var phase = BUBBLING_PHASE; |
- for (var i = 1; i < eventPath.length; i++) { |
- if (!invoke(eventPath[i], event, phase, eventPath, overrideTarget)) |
- return; |
- } |
- |
- if (win && eventPath.length > 0) { |
- invoke(win, event, phase, eventPath, overrideTarget); |
- } |
- } |
- |
- function invoke(currentTarget, event, phase, eventPath, overrideTarget) { |
- var listeners = listenersTable.get(currentTarget); |
- if (!listeners) |
- return true; |
- |
- var target = overrideTarget || eventRetargetting(eventPath, currentTarget); |
- |
- if (target === currentTarget) { |
- if (phase === CAPTURING_PHASE) |
- return true; |
- |
- if (phase === BUBBLING_PHASE) |
- phase = AT_TARGET; |
- |
- } else if (phase === BUBBLING_PHASE && !event.bubbles) { |
- return true; |
- } |
- |
- if ('relatedTarget' in event) { |
- var originalEvent = unwrap(event); |
- var unwrappedRelatedTarget = originalEvent.relatedTarget; |
- |
- // X-Tag sets relatedTarget on a CustomEvent. If they do that there is no |
- // way to have relatedTarget return the adjusted target but worse is that |
- // the originalEvent might not have a relatedTarget so we hit an assert |
- // when we try to wrap it. |
- if (unwrappedRelatedTarget) { |
- // In IE we can get objects that are not EventTargets at this point. |
- // Safari does not have an EventTarget interface so revert to checking |
- // for addEventListener as an approximation. |
- if (unwrappedRelatedTarget instanceof Object && |
- unwrappedRelatedTarget.addEventListener) { |
- var relatedTarget = wrap(unwrappedRelatedTarget); |
- |
- var adjusted = |
- relatedTargetResolution(event, currentTarget, relatedTarget); |
- if (adjusted === target) |
- return true; |
- } else { |
- adjusted = null; |
- } |
- relatedTargetTable.set(event, adjusted); |
- } |
- } |
- |
- eventPhaseTable.set(event, phase); |
- var type = event.type; |
- |
- var anyRemoved = false; |
- // targetTable.set(event, target); |
- targetTable.set(event, target); |
- currentTargetTable.set(event, currentTarget); |
- |
- // Keep track of the invoke depth so that we only clean up the removed |
- // listeners if we are in the outermost invoke. |
- listeners.depth++; |
- |
- for (var i = 0, len = listeners.length; i < len; i++) { |
- var listener = listeners[i]; |
- if (listener.removed) { |
- anyRemoved = true; |
- continue; |
- } |
- |
- if (listener.type !== type || |
- !listener.capture && phase === CAPTURING_PHASE || |
- listener.capture && phase === BUBBLING_PHASE) { |
- continue; |
- } |
- |
- try { |
- if (typeof listener.handler === 'function') |
- listener.handler.call(currentTarget, event); |
- else |
- listener.handler.handleEvent(event); |
- |
- if (stopImmediatePropagationTable.get(event)) |
- return false; |
- |
- } catch (ex) { |
- if (!pendingError) |
- pendingError = ex; |
- } |
- } |
- |
- listeners.depth--; |
- |
- if (anyRemoved && listeners.depth === 0) { |
- var copy = listeners.slice(); |
- listeners.length = 0; |
- for (var i = 0; i < copy.length; i++) { |
- if (!copy[i].removed) |
- listeners.push(copy[i]); |
- } |
- } |
- |
- return !stopPropagationTable.get(event); |
- } |
- |
- function Listener(type, handler, capture) { |
- this.type = type; |
- this.handler = handler; |
- this.capture = Boolean(capture); |
- } |
- Listener.prototype = { |
- equals: function(that) { |
- return this.handler === that.handler && this.type === that.type && |
- this.capture === that.capture; |
- }, |
- get removed() { |
- return this.handler === null; |
- }, |
- remove: function() { |
- this.handler = null; |
- } |
- }; |
- |
- var OriginalEvent = window.Event; |
- OriginalEvent.prototype.polymerBlackList_ = { |
- returnValue: true, |
- // TODO(arv): keyLocation is part of KeyboardEvent but Firefox does not |
- // support constructable KeyboardEvent so we keep it here for now. |
- keyLocation: true |
- }; |
- |
- /** |
- * Creates a new Event wrapper or wraps an existin native Event object. |
- * @param {string|Event} type |
- * @param {Object=} options |
- * @constructor |
- */ |
- function Event(type, options) { |
- if (type instanceof OriginalEvent) { |
- var impl = type; |
- if (!OriginalBeforeUnloadEvent && impl.type === 'beforeunload') |
- return new BeforeUnloadEvent(impl); |
- this.impl = impl; |
- } else { |
- return wrap(constructEvent(OriginalEvent, 'Event', type, options)); |
- } |
- } |
- Event.prototype = { |
- get target() { |
- return targetTable.get(this); |
- }, |
- get currentTarget() { |
- return currentTargetTable.get(this); |
- }, |
- get eventPhase() { |
- return eventPhaseTable.get(this); |
- }, |
- get path() { |
- var eventPath = eventPathTable.get(this); |
- if (!eventPath) |
- return []; |
- // TODO(arv): Event path should contain window. |
- return eventPath.slice(); |
- }, |
- stopPropagation: function() { |
- stopPropagationTable.set(this, true); |
- }, |
- stopImmediatePropagation: function() { |
- stopPropagationTable.set(this, true); |
- stopImmediatePropagationTable.set(this, true); |
- } |
- }; |
- registerWrapper(OriginalEvent, Event, document.createEvent('Event')); |
- |
- function unwrapOptions(options) { |
- if (!options || !options.relatedTarget) |
- return options; |
- return Object.create(options, { |
- relatedTarget: {value: unwrap(options.relatedTarget)} |
- }); |
- } |
- |
- function registerGenericEvent(name, SuperEvent, prototype) { |
- var OriginalEvent = window[name]; |
- var GenericEvent = function(type, options) { |
- if (type instanceof OriginalEvent) |
- this.impl = type; |
- else |
- return wrap(constructEvent(OriginalEvent, name, type, options)); |
- }; |
- GenericEvent.prototype = Object.create(SuperEvent.prototype); |
- if (prototype) |
- mixin(GenericEvent.prototype, prototype); |
- if (OriginalEvent) { |
- // - Old versions of Safari fails on new FocusEvent (and others?). |
- // - IE does not support event constructors. |
- // - createEvent('FocusEvent') throws in Firefox. |
- // => Try the best practice solution first and fallback to the old way |
- // if needed. |
- try { |
- registerWrapper(OriginalEvent, GenericEvent, new OriginalEvent('temp')); |
- } catch (ex) { |
- registerWrapper(OriginalEvent, GenericEvent, |
- document.createEvent(name)); |
- } |
- } |
- return GenericEvent; |
- } |
- |
- var UIEvent = registerGenericEvent('UIEvent', Event); |
- var CustomEvent = registerGenericEvent('CustomEvent', Event); |
- |
- var relatedTargetProto = { |
- get relatedTarget() { |
- var relatedTarget = relatedTargetTable.get(this); |
- // relatedTarget can be null. |
- if (relatedTarget !== undefined) |
- return relatedTarget; |
- return wrap(unwrap(this).relatedTarget); |
- } |
- }; |
- |
- function getInitFunction(name, relatedTargetIndex) { |
- return function() { |
- arguments[relatedTargetIndex] = unwrap(arguments[relatedTargetIndex]); |
- var impl = unwrap(this); |
- impl[name].apply(impl, arguments); |
- }; |
- } |
- |
- var mouseEventProto = mixin({ |
- initMouseEvent: getInitFunction('initMouseEvent', 14) |
- }, relatedTargetProto); |
- |
- var focusEventProto = mixin({ |
- initFocusEvent: getInitFunction('initFocusEvent', 5) |
- }, relatedTargetProto); |
- |
- var MouseEvent = registerGenericEvent('MouseEvent', UIEvent, mouseEventProto); |
- var FocusEvent = registerGenericEvent('FocusEvent', UIEvent, focusEventProto); |
- |
- // In case the browser does not support event constructors we polyfill that |
- // by calling `createEvent('Foo')` and `initFooEvent` where the arguments to |
- // `initFooEvent` are derived from the registered default event init dict. |
- var defaultInitDicts = Object.create(null); |
- |
- var supportsEventConstructors = (function() { |
- try { |
- new window.FocusEvent('focus'); |
- } catch (ex) { |
- return false; |
- } |
- return true; |
- })(); |
- |
- /** |
- * Constructs a new native event. |
- */ |
- function constructEvent(OriginalEvent, name, type, options) { |
- if (supportsEventConstructors) |
- return new OriginalEvent(type, unwrapOptions(options)); |
- |
- // Create the arguments from the default dictionary. |
- var event = unwrap(document.createEvent(name)); |
- var defaultDict = defaultInitDicts[name]; |
- var args = [type]; |
- Object.keys(defaultDict).forEach(function(key) { |
- var v = options != null && key in options ? |
- options[key] : defaultDict[key]; |
- if (key === 'relatedTarget') |
- v = unwrap(v); |
- args.push(v); |
- }); |
- event['init' + name].apply(event, args); |
- return event; |
- } |
- |
- if (!supportsEventConstructors) { |
- var configureEventConstructor = function(name, initDict, superName) { |
- if (superName) { |
- var superDict = defaultInitDicts[superName]; |
- initDict = mixin(mixin({}, superDict), initDict); |
- } |
- |
- defaultInitDicts[name] = initDict; |
- }; |
- |
- // The order of the default event init dictionary keys is important, the |
- // arguments to initFooEvent is derived from that. |
- configureEventConstructor('Event', {bubbles: false, cancelable: false}); |
- configureEventConstructor('CustomEvent', {detail: null}, 'Event'); |
- configureEventConstructor('UIEvent', {view: null, detail: 0}, 'Event'); |
- configureEventConstructor('MouseEvent', { |
- screenX: 0, |
- screenY: 0, |
- clientX: 0, |
- clientY: 0, |
- ctrlKey: false, |
- altKey: false, |
- shiftKey: false, |
- metaKey: false, |
- button: 0, |
- relatedTarget: null |
- }, 'UIEvent'); |
- configureEventConstructor('FocusEvent', {relatedTarget: null}, 'UIEvent'); |
- } |
- |
- // Safari 7 does not yet have BeforeUnloadEvent. |
- // https://bugs.webkit.org/show_bug.cgi?id=120849 |
- var OriginalBeforeUnloadEvent = window.BeforeUnloadEvent; |
- |
- function BeforeUnloadEvent(impl) { |
- Event.call(this, impl); |
- } |
- BeforeUnloadEvent.prototype = Object.create(Event.prototype); |
- mixin(BeforeUnloadEvent.prototype, { |
- get returnValue() { |
- return this.impl.returnValue; |
- }, |
- set returnValue(v) { |
- this.impl.returnValue = v; |
- } |
- }); |
- |
- if (OriginalBeforeUnloadEvent) |
- registerWrapper(OriginalBeforeUnloadEvent, BeforeUnloadEvent); |
- |
- function isValidListener(fun) { |
- if (typeof fun === 'function') |
- return true; |
- return fun && fun.handleEvent; |
- } |
- |
- function isMutationEvent(type) { |
- switch (type) { |
- case 'DOMAttrModified': |
- case 'DOMAttributeNameChanged': |
- case 'DOMCharacterDataModified': |
- case 'DOMElementNameChanged': |
- case 'DOMNodeInserted': |
- case 'DOMNodeInsertedIntoDocument': |
- case 'DOMNodeRemoved': |
- case 'DOMNodeRemovedFromDocument': |
- case 'DOMSubtreeModified': |
- return true; |
- } |
- return false; |
- } |
- |
- var OriginalEventTarget = window.EventTarget; |
- |
- /** |
- * This represents a wrapper for an EventTarget. |
- * @param {!EventTarget} impl The original event target. |
- * @constructor |
- */ |
- function EventTarget(impl) { |
- this.impl = impl; |
- } |
- |
- // Node and Window have different internal type checks in WebKit so we cannot |
- // use the same method as the original function. |
- var methodNames = [ |
- 'addEventListener', |
- 'removeEventListener', |
- 'dispatchEvent' |
- ]; |
- |
- [Node, Window].forEach(function(constructor) { |
- var p = constructor.prototype; |
- methodNames.forEach(function(name) { |
- Object.defineProperty(p, name + '_', {value: p[name]}); |
- }); |
- }); |
- |
- function getTargetToListenAt(wrapper) { |
- if (wrapper instanceof wrappers.ShadowRoot) |
- wrapper = wrapper.host; |
- return unwrap(wrapper); |
- } |
- |
- EventTarget.prototype = { |
- addEventListener: function(type, fun, capture) { |
- if (!isValidListener(fun) || isMutationEvent(type)) |
- return; |
- |
- var listener = new Listener(type, fun, capture); |
- var listeners = listenersTable.get(this); |
- if (!listeners) { |
- listeners = []; |
- listeners.depth = 0; |
- listenersTable.set(this, listeners); |
- } else { |
- // Might have a duplicate. |
- for (var i = 0; i < listeners.length; i++) { |
- if (listener.equals(listeners[i])) |
- return; |
- } |
- } |
- |
- listeners.push(listener); |
- |
- var target = getTargetToListenAt(this); |
- target.addEventListener_(type, dispatchOriginalEvent, true); |
- }, |
- removeEventListener: function(type, fun, capture) { |
- capture = Boolean(capture); |
- var listeners = listenersTable.get(this); |
- if (!listeners) |
- return; |
- var count = 0, found = false; |
- for (var i = 0; i < listeners.length; i++) { |
- if (listeners[i].type === type && listeners[i].capture === capture) { |
- count++; |
- if (listeners[i].handler === fun) { |
- found = true; |
- listeners[i].remove(); |
- } |
- } |
- } |
- |
- if (found && count === 1) { |
- var target = getTargetToListenAt(this); |
- target.removeEventListener_(type, dispatchOriginalEvent, true); |
- } |
- }, |
- dispatchEvent: function(event) { |
- // We want to use the native dispatchEvent because it triggers the default |
- // actions (like checking a checkbox). However, if there are no listeners |
- // in the composed tree then there are no events that will trigger and |
- // listeners in the non composed tree that are part of the event path are |
- // not notified. |
- // |
- // If we find out that there are no listeners in the composed tree we add |
- // a temporary listener to the target which makes us get called back even |
- // in that case. |
- |
- var nativeEvent = unwrap(event); |
- var eventType = nativeEvent.type; |
- |
- // Allow dispatching the same event again. This is safe because if user |
- // code calls this during an existing dispatch of the same event the |
- // native dispatchEvent throws (that is required by the spec). |
- handledEventsTable.set(nativeEvent, false); |
- |
- // Force rendering since we prefer native dispatch and that works on the |
- // composed tree. |
- scope.renderAllPending(); |
- |
- var tempListener; |
- if (!hasListenerInAncestors(this, eventType)) { |
- tempListener = function() {}; |
- this.addEventListener(eventType, tempListener, true); |
- } |
- |
- try { |
- return unwrap(this).dispatchEvent_(nativeEvent); |
- } finally { |
- if (tempListener) |
- this.removeEventListener(eventType, tempListener, true); |
- } |
- } |
- }; |
- |
- function hasListener(node, type) { |
- var listeners = listenersTable.get(node); |
- if (listeners) { |
- for (var i = 0; i < listeners.length; i++) { |
- if (!listeners[i].removed && listeners[i].type === type) |
- return true; |
- } |
- } |
- return false; |
- } |
- |
- function hasListenerInAncestors(target, type) { |
- for (var node = unwrap(target); node; node = node.parentNode) { |
- if (hasListener(wrap(node), type)) |
- return true; |
- } |
- return false; |
- } |
- |
- if (OriginalEventTarget) |
- registerWrapper(OriginalEventTarget, EventTarget); |
- |
- function wrapEventTargetMethods(constructors) { |
- forwardMethodsToWrapper(constructors, methodNames); |
- } |
- |
- var originalElementFromPoint = document.elementFromPoint; |
- |
- function elementFromPoint(self, document, x, y) { |
- scope.renderAllPending(); |
- |
- var element = wrap(originalElementFromPoint.call(document.impl, x, y)); |
- if (!element) |
- return null; |
- var path = getEventPath(element, null); |
- |
- // scope the path to this TreeScope |
- var idx = path.lastIndexOf(self); |
- if (idx == -1) |
- return null; |
- else |
- path = path.slice(0, idx); |
- |
- // TODO(dfreedm): pass idx to eventRetargetting to avoid array copy |
- return eventRetargetting(path, self); |
- } |
- |
- /** |
- * Returns a function that is to be used as a getter for `onfoo` properties. |
- * @param {string} name |
- * @return {Function} |
- */ |
- function getEventHandlerGetter(name) { |
- return function() { |
- var inlineEventHandlers = eventHandlersTable.get(this); |
- return inlineEventHandlers && inlineEventHandlers[name] && |
- inlineEventHandlers[name].value || null; |
- }; |
- } |
- |
- /** |
- * Returns a function that is to be used as a setter for `onfoo` properties. |
- * @param {string} name |
- * @return {Function} |
- */ |
- function getEventHandlerSetter(name) { |
- var eventType = name.slice(2); |
- return function(value) { |
- var inlineEventHandlers = eventHandlersTable.get(this); |
- if (!inlineEventHandlers) { |
- inlineEventHandlers = Object.create(null); |
- eventHandlersTable.set(this, inlineEventHandlers); |
- } |
- |
- var old = inlineEventHandlers[name]; |
- if (old) |
- this.removeEventListener(eventType, old.wrapped, false); |
- |
- if (typeof value === 'function') { |
- var wrapped = function(e) { |
- var rv = value.call(this, e); |
- if (rv === false) |
- e.preventDefault(); |
- else if (name === 'onbeforeunload' && typeof rv === 'string') |
- e.returnValue = rv; |
- // mouseover uses true for preventDefault but preventDefault for |
- // mouseover is ignored by browsers these day. |
- }; |
- |
- this.addEventListener(eventType, wrapped, false); |
- inlineEventHandlers[name] = { |
- value: value, |
- wrapped: wrapped |
- }; |
- } |
- }; |
- } |
- |
- scope.elementFromPoint = elementFromPoint; |
- scope.getEventHandlerGetter = getEventHandlerGetter; |
- scope.getEventHandlerSetter = getEventHandlerSetter; |
- scope.wrapEventTargetMethods = wrapEventTargetMethods; |
- scope.wrappers.BeforeUnloadEvent = BeforeUnloadEvent; |
- scope.wrappers.CustomEvent = CustomEvent; |
- scope.wrappers.Event = Event; |
- scope.wrappers.EventTarget = EventTarget; |
- scope.wrappers.FocusEvent = FocusEvent; |
- scope.wrappers.MouseEvent = MouseEvent; |
- scope.wrappers.UIEvent = UIEvent; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-/* |
- * Copyright 2014 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var UIEvent = scope.wrappers.UIEvent; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- |
- // TouchEvent is WebKit/Blink only. |
- var OriginalTouchEvent = window.TouchEvent; |
- if (!OriginalTouchEvent) |
- return; |
- |
- var nativeEvent; |
- try { |
- nativeEvent = document.createEvent('TouchEvent'); |
- } catch (ex) { |
- // In Chrome creating a TouchEvent fails if the feature is not turned on |
- // which it isn't on desktop Chrome. |
- return; |
- } |
- |
- var nonEnumDescriptor = {enumerable: false}; |
- |
- function nonEnum(obj, prop) { |
- Object.defineProperty(obj, prop, nonEnumDescriptor); |
- } |
- |
- function Touch(impl) { |
- this.impl = impl; |
- } |
- |
- Touch.prototype = { |
- get target() { |
- return wrap(this.impl.target); |
- } |
- }; |
- |
- var descr = { |
- configurable: true, |
- enumerable: true, |
- get: null |
- }; |
- |
- [ |
- 'clientX', |
- 'clientY', |
- 'screenX', |
- 'screenY', |
- 'pageX', |
- 'pageY', |
- 'identifier', |
- 'webkitRadiusX', |
- 'webkitRadiusY', |
- 'webkitRotationAngle', |
- 'webkitForce' |
- ].forEach(function(name) { |
- descr.get = function() { |
- return this.impl[name]; |
- }; |
- Object.defineProperty(Touch.prototype, name, descr); |
- }); |
- |
- function TouchList() { |
- this.length = 0; |
- nonEnum(this, 'length'); |
- } |
- |
- TouchList.prototype = { |
- item: function(index) { |
- return this[index]; |
- } |
- }; |
- |
- function wrapTouchList(nativeTouchList) { |
- var list = new TouchList(); |
- for (var i = 0; i < nativeTouchList.length; i++) { |
- list[i] = new Touch(nativeTouchList[i]); |
- } |
- list.length = i; |
- return list; |
- } |
- |
- function TouchEvent(impl) { |
- UIEvent.call(this, impl); |
- } |
- |
- TouchEvent.prototype = Object.create(UIEvent.prototype); |
- |
- mixin(TouchEvent.prototype, { |
- get touches() { |
- return wrapTouchList(unwrap(this).touches); |
- }, |
- |
- get targetTouches() { |
- return wrapTouchList(unwrap(this).targetTouches); |
- }, |
- |
- get changedTouches() { |
- return wrapTouchList(unwrap(this).changedTouches); |
- }, |
- |
- initTouchEvent: function() { |
- // The only way to use this is to reuse the TouchList from an existing |
- // TouchEvent. Since this is WebKit/Blink proprietary API we will not |
- // implement this until someone screams. |
- throw new Error('Not implemented'); |
- } |
- }); |
- |
- registerWrapper(OriginalTouchEvent, TouchEvent, nativeEvent); |
- |
- scope.wrappers.Touch = Touch; |
- scope.wrappers.TouchEvent = TouchEvent; |
- scope.wrappers.TouchList = TouchList; |
- |
-})(window.ShadowDOMPolyfill); |
- |
- |
-// Copyright 2012 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var wrap = scope.wrap; |
- |
- var nonEnumDescriptor = {enumerable: false}; |
- |
- function nonEnum(obj, prop) { |
- Object.defineProperty(obj, prop, nonEnumDescriptor); |
- } |
- |
- function NodeList() { |
- this.length = 0; |
- nonEnum(this, 'length'); |
- } |
- NodeList.prototype = { |
- item: function(index) { |
- return this[index]; |
- } |
- }; |
- nonEnum(NodeList.prototype, 'item'); |
- |
- function wrapNodeList(list) { |
- if (list == null) |
- return list; |
- var wrapperList = new NodeList(); |
- for (var i = 0, length = list.length; i < length; i++) { |
- wrapperList[i] = wrap(list[i]); |
- } |
- wrapperList.length = length; |
- return wrapperList; |
- } |
- |
- function addWrapNodeListMethod(wrapperConstructor, name) { |
- wrapperConstructor.prototype[name] = function() { |
- return wrapNodeList(this.impl[name].apply(this.impl, arguments)); |
- }; |
- } |
- |
- scope.wrappers.NodeList = NodeList; |
- scope.addWrapNodeListMethod = addWrapNodeListMethod; |
- scope.wrapNodeList = wrapNodeList; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-/* |
- * Copyright 2014 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- // TODO(arv): Implement. |
- |
- scope.wrapHTMLCollection = scope.wrapNodeList; |
- scope.wrappers.HTMLCollection = scope.wrappers.NodeList; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-/** |
- * Copyright 2012 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var EventTarget = scope.wrappers.EventTarget; |
- var NodeList = scope.wrappers.NodeList; |
- var TreeScope = scope.TreeScope; |
- var assert = scope.assert; |
- var defineWrapGetter = scope.defineWrapGetter; |
- var enqueueMutation = scope.enqueueMutation; |
- var getTreeScope = scope.getTreeScope; |
- var isWrapper = scope.isWrapper; |
- var mixin = scope.mixin; |
- var registerTransientObservers = scope.registerTransientObservers; |
- var registerWrapper = scope.registerWrapper; |
- var setTreeScope = scope.setTreeScope; |
- var unwrap = scope.unwrap; |
- var unwrapIfNeeded = scope.unwrapIfNeeded; |
- var wrap = scope.wrap; |
- var wrapIfNeeded = scope.wrapIfNeeded; |
- var wrappers = scope.wrappers; |
- |
- function assertIsNodeWrapper(node) { |
- assert(node instanceof Node); |
- } |
- |
- function createOneElementNodeList(node) { |
- var nodes = new NodeList(); |
- nodes[0] = node; |
- nodes.length = 1; |
- return nodes; |
- } |
- |
- var surpressMutations = false; |
- |
- /** |
- * Called before node is inserted into a node to enqueue its removal from its |
- * old parent. |
- * @param {!Node} node The node that is about to be removed. |
- * @param {!Node} parent The parent node that the node is being removed from. |
- * @param {!NodeList} nodes The collected nodes. |
- */ |
- function enqueueRemovalForInsertedNodes(node, parent, nodes) { |
- enqueueMutation(parent, 'childList', { |
- removedNodes: nodes, |
- previousSibling: node.previousSibling, |
- nextSibling: node.nextSibling |
- }); |
- } |
- |
- function enqueueRemovalForInsertedDocumentFragment(df, nodes) { |
- enqueueMutation(df, 'childList', { |
- removedNodes: nodes |
- }); |
- } |
- |
- /** |
- * Collects nodes from a DocumentFragment or a Node for removal followed |
- * by an insertion. |
- * |
- * This updates the internal pointers for node, previousNode and nextNode. |
- */ |
- function collectNodes(node, parentNode, previousNode, nextNode) { |
- if (node instanceof DocumentFragment) { |
- var nodes = collectNodesForDocumentFragment(node); |
- |
- // The extra loop is to work around bugs with DocumentFragments in IE. |
- surpressMutations = true; |
- for (var i = nodes.length - 1; i >= 0; i--) { |
- node.removeChild(nodes[i]); |
- nodes[i].parentNode_ = parentNode; |
- } |
- surpressMutations = false; |
- |
- for (var i = 0; i < nodes.length; i++) { |
- nodes[i].previousSibling_ = nodes[i - 1] || previousNode; |
- nodes[i].nextSibling_ = nodes[i + 1] || nextNode; |
- } |
- |
- if (previousNode) |
- previousNode.nextSibling_ = nodes[0]; |
- if (nextNode) |
- nextNode.previousSibling_ = nodes[nodes.length - 1]; |
- |
- return nodes; |
- } |
- |
- var nodes = createOneElementNodeList(node); |
- var oldParent = node.parentNode; |
- if (oldParent) { |
- // This will enqueue the mutation record for the removal as needed. |
- oldParent.removeChild(node); |
- } |
- |
- node.parentNode_ = parentNode; |
- node.previousSibling_ = previousNode; |
- node.nextSibling_ = nextNode; |
- if (previousNode) |
- previousNode.nextSibling_ = node; |
- if (nextNode) |
- nextNode.previousSibling_ = node; |
- |
- return nodes; |
- } |
- |
- function collectNodesNative(node) { |
- if (node instanceof DocumentFragment) |
- return collectNodesForDocumentFragment(node); |
- |
- var nodes = createOneElementNodeList(node); |
- var oldParent = node.parentNode; |
- if (oldParent) |
- enqueueRemovalForInsertedNodes(node, oldParent, nodes); |
- return nodes; |
- } |
- |
- function collectNodesForDocumentFragment(node) { |
- var nodes = new NodeList(); |
- var i = 0; |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- nodes[i++] = child; |
- } |
- nodes.length = i; |
- enqueueRemovalForInsertedDocumentFragment(node, nodes); |
- return nodes; |
- } |
- |
- function snapshotNodeList(nodeList) { |
- // NodeLists are not live at the moment so just return the same object. |
- return nodeList; |
- } |
- |
- // http://dom.spec.whatwg.org/#node-is-inserted |
- function nodeWasAdded(node, treeScope) { |
- setTreeScope(node, treeScope); |
- node.nodeIsInserted_(); |
- } |
- |
- function nodesWereAdded(nodes, parent) { |
- var treeScope = getTreeScope(parent); |
- for (var i = 0; i < nodes.length; i++) { |
- nodeWasAdded(nodes[i], treeScope); |
- } |
- } |
- |
- // http://dom.spec.whatwg.org/#node-is-removed |
- function nodeWasRemoved(node) { |
- setTreeScope(node, new TreeScope(node, null)); |
- } |
- |
- function nodesWereRemoved(nodes) { |
- for (var i = 0; i < nodes.length; i++) { |
- nodeWasRemoved(nodes[i]); |
- } |
- } |
- |
- function ensureSameOwnerDocument(parent, child) { |
- var ownerDoc = parent.nodeType === Node.DOCUMENT_NODE ? |
- parent : parent.ownerDocument; |
- if (ownerDoc !== child.ownerDocument) |
- ownerDoc.adoptNode(child); |
- } |
- |
- function adoptNodesIfNeeded(owner, nodes) { |
- if (!nodes.length) |
- return; |
- |
- var ownerDoc = owner.ownerDocument; |
- |
- // All nodes have the same ownerDocument when we get here. |
- if (ownerDoc === nodes[0].ownerDocument) |
- return; |
- |
- for (var i = 0; i < nodes.length; i++) { |
- scope.adoptNodeNoRemove(nodes[i], ownerDoc); |
- } |
- } |
- |
- function unwrapNodesForInsertion(owner, nodes) { |
- adoptNodesIfNeeded(owner, nodes); |
- var length = nodes.length; |
- |
- if (length === 1) |
- return unwrap(nodes[0]); |
- |
- var df = unwrap(owner.ownerDocument.createDocumentFragment()); |
- for (var i = 0; i < length; i++) { |
- df.appendChild(unwrap(nodes[i])); |
- } |
- return df; |
- } |
- |
- function clearChildNodes(wrapper) { |
- if (wrapper.firstChild_ !== undefined) { |
- var child = wrapper.firstChild_; |
- while (child) { |
- var tmp = child; |
- child = child.nextSibling_; |
- tmp.parentNode_ = tmp.previousSibling_ = tmp.nextSibling_ = undefined; |
- } |
- } |
- wrapper.firstChild_ = wrapper.lastChild_ = undefined; |
- } |
- |
- function removeAllChildNodes(wrapper) { |
- if (wrapper.invalidateShadowRenderer()) { |
- var childWrapper = wrapper.firstChild; |
- while (childWrapper) { |
- assert(childWrapper.parentNode === wrapper); |
- var nextSibling = childWrapper.nextSibling; |
- var childNode = unwrap(childWrapper); |
- var parentNode = childNode.parentNode; |
- if (parentNode) |
- originalRemoveChild.call(parentNode, childNode); |
- childWrapper.previousSibling_ = childWrapper.nextSibling_ = |
- childWrapper.parentNode_ = null; |
- childWrapper = nextSibling; |
- } |
- wrapper.firstChild_ = wrapper.lastChild_ = null; |
- } else { |
- var node = unwrap(wrapper); |
- var child = node.firstChild; |
- var nextSibling; |
- while (child) { |
- nextSibling = child.nextSibling; |
- originalRemoveChild.call(node, child); |
- child = nextSibling; |
- } |
- } |
- } |
- |
- function invalidateParent(node) { |
- var p = node.parentNode; |
- return p && p.invalidateShadowRenderer(); |
- } |
- |
- function cleanupNodes(nodes) { |
- for (var i = 0, n; i < nodes.length; i++) { |
- n = nodes[i]; |
- n.parentNode.removeChild(n); |
- } |
- } |
- |
- var originalImportNode = document.importNode; |
- var originalCloneNode = window.Node.prototype.cloneNode; |
- |
- function cloneNode(node, deep, opt_doc) { |
- var clone; |
- if (opt_doc) |
- clone = wrap(originalImportNode.call(opt_doc, node.impl, false)); |
- else |
- clone = wrap(originalCloneNode.call(node.impl, false)); |
- |
- if (deep) { |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- clone.appendChild(cloneNode(child, true, opt_doc)); |
- } |
- |
- if (node instanceof wrappers.HTMLTemplateElement) { |
- var cloneContent = clone.content; |
- for (var child = node.content.firstChild; |
- child; |
- child = child.nextSibling) { |
- cloneContent.appendChild(cloneNode(child, true, opt_doc)); |
- } |
- } |
- } |
- // TODO(arv): Some HTML elements also clone other data like value. |
- return clone; |
- } |
- |
- function contains(self, child) { |
- if (!child || getTreeScope(self) !== getTreeScope(child)) |
- return false; |
- |
- for (var node = child; node; node = node.parentNode) { |
- if (node === self) |
- return true; |
- } |
- return false; |
- } |
- |
- var OriginalNode = window.Node; |
- |
- /** |
- * This represents a wrapper of a native DOM node. |
- * @param {!Node} original The original DOM node, aka, the visual DOM node. |
- * @constructor |
- * @extends {EventTarget} |
- */ |
- function Node(original) { |
- assert(original instanceof OriginalNode); |
- |
- EventTarget.call(this, original); |
- |
- // These properties are used to override the visual references with the |
- // logical ones. If the value is undefined it means that the logical is the |
- // same as the visual. |
- |
- /** |
- * @type {Node|undefined} |
- * @private |
- */ |
- this.parentNode_ = undefined; |
- |
- /** |
- * @type {Node|undefined} |
- * @private |
- */ |
- this.firstChild_ = undefined; |
- |
- /** |
- * @type {Node|undefined} |
- * @private |
- */ |
- this.lastChild_ = undefined; |
- |
- /** |
- * @type {Node|undefined} |
- * @private |
- */ |
- this.nextSibling_ = undefined; |
- |
- /** |
- * @type {Node|undefined} |
- * @private |
- */ |
- this.previousSibling_ = undefined; |
- |
- this.treeScope_ = undefined; |
- } |
- |
- var OriginalDocumentFragment = window.DocumentFragment; |
- var originalAppendChild = OriginalNode.prototype.appendChild; |
- var originalCompareDocumentPosition = |
- OriginalNode.prototype.compareDocumentPosition; |
- var originalInsertBefore = OriginalNode.prototype.insertBefore; |
- var originalRemoveChild = OriginalNode.prototype.removeChild; |
- var originalReplaceChild = OriginalNode.prototype.replaceChild; |
- |
- var isIe = /Trident/.test(navigator.userAgent); |
- |
- var removeChildOriginalHelper = isIe ? |
- function(parent, child) { |
- try { |
- originalRemoveChild.call(parent, child); |
- } catch (ex) { |
- if (!(parent instanceof OriginalDocumentFragment)) |
- throw ex; |
- } |
- } : |
- function(parent, child) { |
- originalRemoveChild.call(parent, child); |
- }; |
- |
- Node.prototype = Object.create(EventTarget.prototype); |
- mixin(Node.prototype, { |
- appendChild: function(childWrapper) { |
- return this.insertBefore(childWrapper, null); |
- }, |
- |
- insertBefore: function(childWrapper, refWrapper) { |
- assertIsNodeWrapper(childWrapper); |
- |
- var refNode; |
- if (refWrapper) { |
- if (isWrapper(refWrapper)) { |
- refNode = unwrap(refWrapper); |
- } else { |
- refNode = refWrapper; |
- refWrapper = wrap(refNode); |
- } |
- } else { |
- refWrapper = null; |
- refNode = null; |
- } |
- |
- refWrapper && assert(refWrapper.parentNode === this); |
- |
- var nodes; |
- var previousNode = |
- refWrapper ? refWrapper.previousSibling : this.lastChild; |
- |
- var useNative = !this.invalidateShadowRenderer() && |
- !invalidateParent(childWrapper); |
- |
- if (useNative) |
- nodes = collectNodesNative(childWrapper); |
- else |
- nodes = collectNodes(childWrapper, this, previousNode, refWrapper); |
- |
- if (useNative) { |
- ensureSameOwnerDocument(this, childWrapper); |
- clearChildNodes(this); |
- originalInsertBefore.call(this.impl, unwrap(childWrapper), refNode); |
- } else { |
- if (!previousNode) |
- this.firstChild_ = nodes[0]; |
- if (!refWrapper) { |
- this.lastChild_ = nodes[nodes.length - 1]; |
- if (this.firstChild_ === undefined) |
- this.firstChild_ = this.firstChild; |
- } |
- |
- var parentNode = refNode ? refNode.parentNode : this.impl; |
- |
- // insertBefore refWrapper no matter what the parent is? |
- if (parentNode) { |
- originalInsertBefore.call(parentNode, |
- unwrapNodesForInsertion(this, nodes), refNode); |
- } else { |
- adoptNodesIfNeeded(this, nodes); |
- } |
- } |
- |
- enqueueMutation(this, 'childList', { |
- addedNodes: nodes, |
- nextSibling: refWrapper, |
- previousSibling: previousNode |
- }); |
- |
- nodesWereAdded(nodes, this); |
- |
- return childWrapper; |
- }, |
- |
- removeChild: function(childWrapper) { |
- assertIsNodeWrapper(childWrapper); |
- if (childWrapper.parentNode !== this) { |
- // IE has invalid DOM trees at times. |
- var found = false; |
- var childNodes = this.childNodes; |
- for (var ieChild = this.firstChild; ieChild; |
- ieChild = ieChild.nextSibling) { |
- if (ieChild === childWrapper) { |
- found = true; |
- break; |
- } |
- } |
- if (!found) { |
- // TODO(arv): DOMException |
- throw new Error('NotFoundError'); |
- } |
- } |
- |
- var childNode = unwrap(childWrapper); |
- var childWrapperNextSibling = childWrapper.nextSibling; |
- var childWrapperPreviousSibling = childWrapper.previousSibling; |
- |
- if (this.invalidateShadowRenderer()) { |
- // We need to remove the real node from the DOM before updating the |
- // pointers. This is so that that mutation event is dispatched before |
- // the pointers have changed. |
- var thisFirstChild = this.firstChild; |
- var thisLastChild = this.lastChild; |
- |
- var parentNode = childNode.parentNode; |
- if (parentNode) |
- removeChildOriginalHelper(parentNode, childNode); |
- |
- if (thisFirstChild === childWrapper) |
- this.firstChild_ = childWrapperNextSibling; |
- if (thisLastChild === childWrapper) |
- this.lastChild_ = childWrapperPreviousSibling; |
- if (childWrapperPreviousSibling) |
- childWrapperPreviousSibling.nextSibling_ = childWrapperNextSibling; |
- if (childWrapperNextSibling) { |
- childWrapperNextSibling.previousSibling_ = |
- childWrapperPreviousSibling; |
- } |
- |
- childWrapper.previousSibling_ = childWrapper.nextSibling_ = |
- childWrapper.parentNode_ = undefined; |
- } else { |
- clearChildNodes(this); |
- removeChildOriginalHelper(this.impl, childNode); |
- } |
- |
- if (!surpressMutations) { |
- enqueueMutation(this, 'childList', { |
- removedNodes: createOneElementNodeList(childWrapper), |
- nextSibling: childWrapperNextSibling, |
- previousSibling: childWrapperPreviousSibling |
- }); |
- } |
- |
- registerTransientObservers(this, childWrapper); |
- |
- return childWrapper; |
- }, |
- |
- replaceChild: function(newChildWrapper, oldChildWrapper) { |
- assertIsNodeWrapper(newChildWrapper); |
- |
- var oldChildNode; |
- if (isWrapper(oldChildWrapper)) { |
- oldChildNode = unwrap(oldChildWrapper); |
- } else { |
- oldChildNode = oldChildWrapper; |
- oldChildWrapper = wrap(oldChildNode); |
- } |
- |
- if (oldChildWrapper.parentNode !== this) { |
- // TODO(arv): DOMException |
- throw new Error('NotFoundError'); |
- } |
- |
- var nextNode = oldChildWrapper.nextSibling; |
- var previousNode = oldChildWrapper.previousSibling; |
- var nodes; |
- |
- var useNative = !this.invalidateShadowRenderer() && |
- !invalidateParent(newChildWrapper); |
- |
- if (useNative) { |
- nodes = collectNodesNative(newChildWrapper); |
- } else { |
- if (nextNode === newChildWrapper) |
- nextNode = newChildWrapper.nextSibling; |
- nodes = collectNodes(newChildWrapper, this, previousNode, nextNode); |
- } |
- |
- if (!useNative) { |
- if (this.firstChild === oldChildWrapper) |
- this.firstChild_ = nodes[0]; |
- if (this.lastChild === oldChildWrapper) |
- this.lastChild_ = nodes[nodes.length - 1]; |
- |
- oldChildWrapper.previousSibling_ = oldChildWrapper.nextSibling_ = |
- oldChildWrapper.parentNode_ = undefined; |
- |
- // replaceChild no matter what the parent is? |
- if (oldChildNode.parentNode) { |
- originalReplaceChild.call( |
- oldChildNode.parentNode, |
- unwrapNodesForInsertion(this, nodes), |
- oldChildNode); |
- } |
- } else { |
- ensureSameOwnerDocument(this, newChildWrapper); |
- clearChildNodes(this); |
- originalReplaceChild.call(this.impl, unwrap(newChildWrapper), |
- oldChildNode); |
- } |
- |
- enqueueMutation(this, 'childList', { |
- addedNodes: nodes, |
- removedNodes: createOneElementNodeList(oldChildWrapper), |
- nextSibling: nextNode, |
- previousSibling: previousNode |
- }); |
- |
- nodeWasRemoved(oldChildWrapper); |
- nodesWereAdded(nodes, this); |
- |
- return oldChildWrapper; |
- }, |
- |
- /** |
- * Called after a node was inserted. Subclasses override this to invalidate |
- * the renderer as needed. |
- * @private |
- */ |
- nodeIsInserted_: function() { |
- for (var child = this.firstChild; child; child = child.nextSibling) { |
- child.nodeIsInserted_(); |
- } |
- }, |
- |
- hasChildNodes: function() { |
- return this.firstChild !== null; |
- }, |
- |
- /** @type {Node} */ |
- get parentNode() { |
- // If the parentNode has not been overridden, use the original parentNode. |
- return this.parentNode_ !== undefined ? |
- this.parentNode_ : wrap(this.impl.parentNode); |
- }, |
- |
- /** @type {Node} */ |
- get firstChild() { |
- return this.firstChild_ !== undefined ? |
- this.firstChild_ : wrap(this.impl.firstChild); |
- }, |
- |
- /** @type {Node} */ |
- get lastChild() { |
- return this.lastChild_ !== undefined ? |
- this.lastChild_ : wrap(this.impl.lastChild); |
- }, |
- |
- /** @type {Node} */ |
- get nextSibling() { |
- return this.nextSibling_ !== undefined ? |
- this.nextSibling_ : wrap(this.impl.nextSibling); |
- }, |
- |
- /** @type {Node} */ |
- get previousSibling() { |
- return this.previousSibling_ !== undefined ? |
- this.previousSibling_ : wrap(this.impl.previousSibling); |
- }, |
- |
- get parentElement() { |
- var p = this.parentNode; |
- while (p && p.nodeType !== Node.ELEMENT_NODE) { |
- p = p.parentNode; |
- } |
- return p; |
- }, |
- |
- get textContent() { |
- // TODO(arv): This should fallback to this.impl.textContent if there |
- // are no shadow trees below or above the context node. |
- var s = ''; |
- for (var child = this.firstChild; child; child = child.nextSibling) { |
- if (child.nodeType != Node.COMMENT_NODE) { |
- s += child.textContent; |
- } |
- } |
- return s; |
- }, |
- set textContent(textContent) { |
- var removedNodes = snapshotNodeList(this.childNodes); |
- |
- if (this.invalidateShadowRenderer()) { |
- removeAllChildNodes(this); |
- if (textContent !== '') { |
- var textNode = this.impl.ownerDocument.createTextNode(textContent); |
- this.appendChild(textNode); |
- } |
- } else { |
- clearChildNodes(this); |
- this.impl.textContent = textContent; |
- } |
- |
- var addedNodes = snapshotNodeList(this.childNodes); |
- |
- enqueueMutation(this, 'childList', { |
- addedNodes: addedNodes, |
- removedNodes: removedNodes |
- }); |
- |
- nodesWereRemoved(removedNodes); |
- nodesWereAdded(addedNodes, this); |
- }, |
- |
- get childNodes() { |
- var wrapperList = new NodeList(); |
- var i = 0; |
- for (var child = this.firstChild; child; child = child.nextSibling) { |
- wrapperList[i++] = child; |
- } |
- wrapperList.length = i; |
- return wrapperList; |
- }, |
- |
- cloneNode: function(deep) { |
- return cloneNode(this, deep); |
- }, |
- |
- contains: function(child) { |
- return contains(this, wrapIfNeeded(child)); |
- }, |
- |
- compareDocumentPosition: function(otherNode) { |
- // This only wraps, it therefore only operates on the composed DOM and not |
- // the logical DOM. |
- return originalCompareDocumentPosition.call(this.impl, |
- unwrapIfNeeded(otherNode)); |
- }, |
- |
- normalize: function() { |
- var nodes = snapshotNodeList(this.childNodes); |
- var remNodes = []; |
- var s = ''; |
- var modNode; |
- |
- for (var i = 0, n; i < nodes.length; i++) { |
- n = nodes[i]; |
- if (n.nodeType === Node.TEXT_NODE) { |
- if (!modNode && !n.data.length) |
- this.removeNode(n); |
- else if (!modNode) |
- modNode = n; |
- else { |
- s += n.data; |
- remNodes.push(n); |
- } |
- } else { |
- if (modNode && remNodes.length) { |
- modNode.data += s; |
- cleanupNodes(remNodes); |
- } |
- remNodes = []; |
- s = ''; |
- modNode = null; |
- if (n.childNodes.length) |
- n.normalize(); |
- } |
- } |
- |
- // handle case where >1 text nodes are the last children |
- if (modNode && remNodes.length) { |
- modNode.data += s; |
- cleanupNodes(remNodes); |
- } |
- } |
- }); |
- |
- defineWrapGetter(Node, 'ownerDocument'); |
- |
- // We use a DocumentFragment as a base and then delete the properties of |
- // DocumentFragment.prototype from the wrapper Node. Since delete makes |
- // objects slow in some JS engines we recreate the prototype object. |
- registerWrapper(OriginalNode, Node, document.createDocumentFragment()); |
- delete Node.prototype.querySelector; |
- delete Node.prototype.querySelectorAll; |
- Node.prototype = mixin(Object.create(EventTarget.prototype), Node.prototype); |
- |
- scope.cloneNode = cloneNode; |
- scope.nodeWasAdded = nodeWasAdded; |
- scope.nodeWasRemoved = nodeWasRemoved; |
- scope.nodesWereAdded = nodesWereAdded; |
- scope.nodesWereRemoved = nodesWereRemoved; |
- scope.snapshotNodeList = snapshotNodeList; |
- scope.wrappers.Node = Node; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLCollection = scope.wrappers.HTMLCollection; |
- var NodeList = scope.wrappers.NodeList; |
- |
- function findOne(node, selector) { |
- var m, el = node.firstElementChild; |
- while (el) { |
- if (el.matches(selector)) |
- return el; |
- m = findOne(el, selector); |
- if (m) |
- return m; |
- el = el.nextElementSibling; |
- } |
- return null; |
- } |
- |
- function matchesSelector(el, selector) { |
- return el.matches(selector); |
- } |
- |
- var XHTML_NS = 'http://www.w3.org/1999/xhtml'; |
- |
- function matchesTagName(el, localName, localNameLowerCase) { |
- var ln = el.localName; |
- return ln === localName || |
- ln === localNameLowerCase && el.namespaceURI === XHTML_NS; |
- } |
- |
- function matchesEveryThing() { |
- return true; |
- } |
- |
- function matchesLocalName(el, localName) { |
- return el.localName === localName; |
- } |
- |
- function matchesNameSpace(el, ns) { |
- return el.namespaceURI === ns; |
- } |
- |
- function matchesLocalNameNS(el, ns, localName) { |
- return el.namespaceURI === ns && el.localName === localName; |
- } |
- |
- function findElements(node, result, p, arg0, arg1) { |
- var el = node.firstElementChild; |
- while (el) { |
- if (p(el, arg0, arg1)) |
- result[result.length++] = el; |
- findElements(el, result, p, arg0, arg1); |
- el = el.nextElementSibling; |
- } |
- return result; |
- } |
- |
- // find and findAll will only match Simple Selectors, |
- // Structural Pseudo Classes are not guarenteed to be correct |
- // http://www.w3.org/TR/css3-selectors/#simple-selectors |
- |
- var SelectorsInterface = { |
- querySelector: function(selector) { |
- return findOne(this, selector); |
- }, |
- querySelectorAll: function(selector) { |
- return findElements(this, new NodeList(), matchesSelector, selector); |
- } |
- }; |
- |
- var GetElementsByInterface = { |
- getElementsByTagName: function(localName) { |
- var result = new HTMLCollection(); |
- if (localName === '*') |
- return findElements(this, result, matchesEveryThing); |
- |
- return findElements(this, result, |
- matchesTagName, |
- localName, |
- localName.toLowerCase()); |
- }, |
- |
- getElementsByClassName: function(className) { |
- // TODO(arv): Check className? |
- return this.querySelectorAll('.' + className); |
- }, |
- |
- getElementsByTagNameNS: function(ns, localName) { |
- var result = new HTMLCollection(); |
- |
- if (ns === '') { |
- ns = null; |
- } else if (ns === '*') { |
- if (localName === '*') |
- return findElements(this, result, matchesEveryThing); |
- return findElements(this, result, matchesLocalName, localName); |
- } |
- |
- if (localName === '*') |
- return findElements(this, result, matchesNameSpace, ns); |
- |
- return findElements(this, result, matchesLocalNameNS, ns, localName); |
- } |
- }; |
- |
- scope.GetElementsByInterface = GetElementsByInterface; |
- scope.SelectorsInterface = SelectorsInterface; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var NodeList = scope.wrappers.NodeList; |
- |
- function forwardElement(node) { |
- while (node && node.nodeType !== Node.ELEMENT_NODE) { |
- node = node.nextSibling; |
- } |
- return node; |
- } |
- |
- function backwardsElement(node) { |
- while (node && node.nodeType !== Node.ELEMENT_NODE) { |
- node = node.previousSibling; |
- } |
- return node; |
- } |
- |
- var ParentNodeInterface = { |
- get firstElementChild() { |
- return forwardElement(this.firstChild); |
- }, |
- |
- get lastElementChild() { |
- return backwardsElement(this.lastChild); |
- }, |
- |
- get childElementCount() { |
- var count = 0; |
- for (var child = this.firstElementChild; |
- child; |
- child = child.nextElementSibling) { |
- count++; |
- } |
- return count; |
- }, |
- |
- get children() { |
- var wrapperList = new NodeList(); |
- var i = 0; |
- for (var child = this.firstElementChild; |
- child; |
- child = child.nextElementSibling) { |
- wrapperList[i++] = child; |
- } |
- wrapperList.length = i; |
- return wrapperList; |
- }, |
- |
- remove: function() { |
- var p = this.parentNode; |
- if (p) |
- p.removeChild(this); |
- } |
- }; |
- |
- var ChildNodeInterface = { |
- get nextElementSibling() { |
- return forwardElement(this.nextSibling); |
- }, |
- |
- get previousElementSibling() { |
- return backwardsElement(this.previousSibling); |
- } |
- }; |
- |
- scope.ChildNodeInterface = ChildNodeInterface; |
- scope.ParentNodeInterface = ParentNodeInterface; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var ChildNodeInterface = scope.ChildNodeInterface; |
- var Node = scope.wrappers.Node; |
- var enqueueMutation = scope.enqueueMutation; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- |
- var OriginalCharacterData = window.CharacterData; |
- |
- function CharacterData(node) { |
- Node.call(this, node); |
- } |
- CharacterData.prototype = Object.create(Node.prototype); |
- mixin(CharacterData.prototype, { |
- get textContent() { |
- return this.data; |
- }, |
- set textContent(value) { |
- this.data = value; |
- }, |
- get data() { |
- return this.impl.data; |
- }, |
- set data(value) { |
- var oldValue = this.impl.data; |
- enqueueMutation(this, 'characterData', { |
- oldValue: oldValue |
- }); |
- this.impl.data = value; |
- } |
- }); |
- |
- mixin(CharacterData.prototype, ChildNodeInterface); |
- |
- registerWrapper(OriginalCharacterData, CharacterData, |
- document.createTextNode('')); |
- |
- scope.wrappers.CharacterData = CharacterData; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2014 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var CharacterData = scope.wrappers.CharacterData; |
- var enqueueMutation = scope.enqueueMutation; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- |
- function toUInt32(x) { |
- return x >>> 0; |
- } |
- |
- var OriginalText = window.Text; |
- |
- function Text(node) { |
- CharacterData.call(this, node); |
- } |
- Text.prototype = Object.create(CharacterData.prototype); |
- mixin(Text.prototype, { |
- splitText: function(offset) { |
- offset = toUInt32(offset); |
- var s = this.data; |
- if (offset > s.length) |
- throw new Error('IndexSizeError'); |
- var head = s.slice(0, offset); |
- var tail = s.slice(offset); |
- this.data = head; |
- var newTextNode = this.ownerDocument.createTextNode(tail); |
- if (this.parentNode) |
- this.parentNode.insertBefore(newTextNode, this.nextSibling); |
- return newTextNode; |
- } |
- }); |
- |
- registerWrapper(OriginalText, Text, document.createTextNode('')); |
- |
- scope.wrappers.Text = Text; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2014 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- function invalidateClass(el) { |
- scope.invalidateRendererBasedOnAttribute(el, 'class'); |
- } |
- |
- function DOMTokenList(impl, ownerElement) { |
- this.impl = impl; |
- this.ownerElement_ = ownerElement; |
- } |
- |
- DOMTokenList.prototype = { |
- get length() { |
- return this.impl.length; |
- }, |
- item: function(index) { |
- return this.impl.item(index); |
- }, |
- contains: function(token) { |
- return this.impl.contains(token); |
- }, |
- add: function() { |
- this.impl.add.apply(this.impl, arguments); |
- invalidateClass(this.ownerElement_); |
- }, |
- remove: function() { |
- this.impl.remove.apply(this.impl, arguments); |
- invalidateClass(this.ownerElement_); |
- }, |
- toggle: function(token) { |
- var rv = this.impl.toggle.apply(this.impl, arguments); |
- invalidateClass(this.ownerElement_); |
- return rv; |
- }, |
- toString: function() { |
- return this.impl.toString(); |
- } |
- }; |
- |
- scope.wrappers.DOMTokenList = DOMTokenList; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var ChildNodeInterface = scope.ChildNodeInterface; |
- var GetElementsByInterface = scope.GetElementsByInterface; |
- var Node = scope.wrappers.Node; |
- var DOMTokenList = scope.wrappers.DOMTokenList; |
- var ParentNodeInterface = scope.ParentNodeInterface; |
- var SelectorsInterface = scope.SelectorsInterface; |
- var addWrapNodeListMethod = scope.addWrapNodeListMethod; |
- var enqueueMutation = scope.enqueueMutation; |
- var mixin = scope.mixin; |
- var oneOf = scope.oneOf; |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var wrappers = scope.wrappers; |
- |
- var OriginalElement = window.Element; |
- |
- var matchesNames = [ |
- 'matches', // needs to come first. |
- 'mozMatchesSelector', |
- 'msMatchesSelector', |
- 'webkitMatchesSelector', |
- ].filter(function(name) { |
- return OriginalElement.prototype[name]; |
- }); |
- |
- var matchesName = matchesNames[0]; |
- |
- var originalMatches = OriginalElement.prototype[matchesName]; |
- |
- function invalidateRendererBasedOnAttribute(element, name) { |
- // Only invalidate if parent node is a shadow host. |
- var p = element.parentNode; |
- if (!p || !p.shadowRoot) |
- return; |
- |
- var renderer = scope.getRendererForHost(p); |
- if (renderer.dependsOnAttribute(name)) |
- renderer.invalidate(); |
- } |
- |
- function enqueAttributeChange(element, name, oldValue) { |
- // This is not fully spec compliant. We should use localName (which might |
- // have a different case than name) and the namespace (which requires us |
- // to get the Attr object). |
- enqueueMutation(element, 'attributes', { |
- name: name, |
- namespace: null, |
- oldValue: oldValue |
- }); |
- } |
- |
- var classListTable = new WeakMap(); |
- |
- function Element(node) { |
- Node.call(this, node); |
- } |
- Element.prototype = Object.create(Node.prototype); |
- mixin(Element.prototype, { |
- createShadowRoot: function() { |
- var newShadowRoot = new wrappers.ShadowRoot(this); |
- this.impl.polymerShadowRoot_ = newShadowRoot; |
- |
- var renderer = scope.getRendererForHost(this); |
- renderer.invalidate(); |
- |
- return newShadowRoot; |
- }, |
- |
- get shadowRoot() { |
- return this.impl.polymerShadowRoot_ || null; |
- }, |
- |
- // getDestinationInsertionPoints added in ShadowRenderer.js |
- |
- setAttribute: function(name, value) { |
- var oldValue = this.impl.getAttribute(name); |
- this.impl.setAttribute(name, value); |
- enqueAttributeChange(this, name, oldValue); |
- invalidateRendererBasedOnAttribute(this, name); |
- }, |
- |
- removeAttribute: function(name) { |
- var oldValue = this.impl.getAttribute(name); |
- this.impl.removeAttribute(name); |
- enqueAttributeChange(this, name, oldValue); |
- invalidateRendererBasedOnAttribute(this, name); |
- }, |
- |
- matches: function(selector) { |
- return originalMatches.call(this.impl, selector); |
- }, |
- |
- get classList() { |
- var list = classListTable.get(this); |
- if (!list) { |
- classListTable.set(this, |
- list = new DOMTokenList(unwrap(this).classList, this)); |
- } |
- return list; |
- }, |
- |
- get className() { |
- return unwrap(this).className; |
- }, |
- |
- set className(v) { |
- this.setAttribute('class', v); |
- }, |
- |
- get id() { |
- return unwrap(this).id; |
- }, |
- |
- set id(v) { |
- this.setAttribute('id', v); |
- } |
- }); |
- |
- matchesNames.forEach(function(name) { |
- if (name !== 'matches') { |
- Element.prototype[name] = function(selector) { |
- return this.matches(selector); |
- }; |
- } |
- }); |
- |
- if (OriginalElement.prototype.webkitCreateShadowRoot) { |
- Element.prototype.webkitCreateShadowRoot = |
- Element.prototype.createShadowRoot; |
- } |
- |
- mixin(Element.prototype, ChildNodeInterface); |
- mixin(Element.prototype, GetElementsByInterface); |
- mixin(Element.prototype, ParentNodeInterface); |
- mixin(Element.prototype, SelectorsInterface); |
- |
- registerWrapper(OriginalElement, Element, |
- document.createElementNS(null, 'x')); |
- |
- scope.invalidateRendererBasedOnAttribute = invalidateRendererBasedOnAttribute; |
- scope.matchesNames = matchesNames; |
- scope.wrappers.Element = Element; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var Element = scope.wrappers.Element; |
- var defineGetter = scope.defineGetter; |
- var enqueueMutation = scope.enqueueMutation; |
- var mixin = scope.mixin; |
- var nodesWereAdded = scope.nodesWereAdded; |
- var nodesWereRemoved = scope.nodesWereRemoved; |
- var registerWrapper = scope.registerWrapper; |
- var snapshotNodeList = scope.snapshotNodeList; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- var wrappers = scope.wrappers; |
- |
- ///////////////////////////////////////////////////////////////////////////// |
- // innerHTML and outerHTML |
- |
- // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-end.html#escapingString |
- var escapeAttrRegExp = /[&\u00A0"]/g; |
- var escapeDataRegExp = /[&\u00A0<>]/g; |
- |
- function escapeReplace(c) { |
- switch (c) { |
- case '&': |
- return '&'; |
- case '<': |
- return '<'; |
- case '>': |
- return '>'; |
- case '"': |
- return '"' |
- case '\u00A0': |
- return ' '; |
- } |
- } |
- |
- function escapeAttr(s) { |
- return s.replace(escapeAttrRegExp, escapeReplace); |
- } |
- |
- function escapeData(s) { |
- return s.replace(escapeDataRegExp, escapeReplace); |
- } |
- |
- function makeSet(arr) { |
- var set = {}; |
- for (var i = 0; i < arr.length; i++) { |
- set[arr[i]] = true; |
- } |
- return set; |
- } |
- |
- // http://www.whatwg.org/specs/web-apps/current-work/#void-elements |
- var voidElements = makeSet([ |
- 'area', |
- 'base', |
- 'br', |
- 'col', |
- 'command', |
- 'embed', |
- 'hr', |
- 'img', |
- 'input', |
- 'keygen', |
- 'link', |
- 'meta', |
- 'param', |
- 'source', |
- 'track', |
- 'wbr' |
- ]); |
- |
- var plaintextParents = makeSet([ |
- 'style', |
- 'script', |
- 'xmp', |
- 'iframe', |
- 'noembed', |
- 'noframes', |
- 'plaintext', |
- 'noscript' |
- ]); |
- |
- function getOuterHTML(node, parentNode) { |
- switch (node.nodeType) { |
- case Node.ELEMENT_NODE: |
- var tagName = node.tagName.toLowerCase(); |
- var s = '<' + tagName; |
- var attrs = node.attributes; |
- for (var i = 0, attr; attr = attrs[i]; i++) { |
- s += ' ' + attr.name + '="' + escapeAttr(attr.value) + '"'; |
- } |
- s += '>'; |
- if (voidElements[tagName]) |
- return s; |
- |
- return s + getInnerHTML(node) + '</' + tagName + '>'; |
- |
- case Node.TEXT_NODE: |
- var data = node.data; |
- if (parentNode && plaintextParents[parentNode.localName]) |
- return data; |
- return escapeData(data); |
- |
- case Node.COMMENT_NODE: |
- return '<!--' + node.data + '-->'; |
- |
- default: |
- console.error(node); |
- throw new Error('not implemented'); |
- } |
- } |
- |
- function getInnerHTML(node) { |
- if (node instanceof wrappers.HTMLTemplateElement) |
- node = node.content; |
- |
- var s = ''; |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- s += getOuterHTML(child, node); |
- } |
- return s; |
- } |
- |
- function setInnerHTML(node, value, opt_tagName) { |
- var tagName = opt_tagName || 'div'; |
- node.textContent = ''; |
- var tempElement = unwrap(node.ownerDocument.createElement(tagName)); |
- tempElement.innerHTML = value; |
- var firstChild; |
- while (firstChild = tempElement.firstChild) { |
- node.appendChild(wrap(firstChild)); |
- } |
- } |
- |
- // IE11 does not have MSIE in the user agent string. |
- var oldIe = /MSIE/.test(navigator.userAgent); |
- |
- var OriginalHTMLElement = window.HTMLElement; |
- var OriginalHTMLTemplateElement = window.HTMLTemplateElement; |
- |
- function HTMLElement(node) { |
- Element.call(this, node); |
- } |
- HTMLElement.prototype = Object.create(Element.prototype); |
- mixin(HTMLElement.prototype, { |
- get innerHTML() { |
- return getInnerHTML(this); |
- }, |
- set innerHTML(value) { |
- // IE9 does not handle set innerHTML correctly on plaintextParents. It |
- // creates element children. For example |
- // |
- // scriptElement.innerHTML = '<a>test</a>' |
- // |
- // Creates a single HTMLAnchorElement child. |
- if (oldIe && plaintextParents[this.localName]) { |
- this.textContent = value; |
- return; |
- } |
- |
- var removedNodes = snapshotNodeList(this.childNodes); |
- |
- if (this.invalidateShadowRenderer()) { |
- if (this instanceof wrappers.HTMLTemplateElement) |
- setInnerHTML(this.content, value); |
- else |
- setInnerHTML(this, value, this.tagName); |
- |
- // If we have a non native template element we need to handle this |
- // manually since setting impl.innerHTML would add the html as direct |
- // children and not be moved over to the content fragment. |
- } else if (!OriginalHTMLTemplateElement && |
- this instanceof wrappers.HTMLTemplateElement) { |
- setInnerHTML(this.content, value); |
- } else { |
- this.impl.innerHTML = value; |
- } |
- |
- var addedNodes = snapshotNodeList(this.childNodes); |
- |
- enqueueMutation(this, 'childList', { |
- addedNodes: addedNodes, |
- removedNodes: removedNodes |
- }); |
- |
- nodesWereRemoved(removedNodes); |
- nodesWereAdded(addedNodes, this); |
- }, |
- |
- get outerHTML() { |
- return getOuterHTML(this, this.parentNode); |
- }, |
- set outerHTML(value) { |
- var p = this.parentNode; |
- if (p) { |
- p.invalidateShadowRenderer(); |
- var df = frag(p, value); |
- p.replaceChild(df, this); |
- } |
- }, |
- |
- insertAdjacentHTML: function(position, text) { |
- var contextElement, refNode; |
- switch (String(position).toLowerCase()) { |
- case 'beforebegin': |
- contextElement = this.parentNode; |
- refNode = this; |
- break; |
- case 'afterend': |
- contextElement = this.parentNode; |
- refNode = this.nextSibling; |
- break; |
- case 'afterbegin': |
- contextElement = this; |
- refNode = this.firstChild; |
- break; |
- case 'beforeend': |
- contextElement = this; |
- refNode = null; |
- break; |
- default: |
- return; |
- } |
- |
- var df = frag(contextElement, text); |
- contextElement.insertBefore(df, refNode); |
- } |
- }); |
- |
- function frag(contextElement, html) { |
- // TODO(arv): This does not work with SVG and other non HTML elements. |
- var p = unwrap(contextElement.cloneNode(false)); |
- p.innerHTML = html; |
- var df = unwrap(document.createDocumentFragment()); |
- var c; |
- while (c = p.firstChild) { |
- df.appendChild(c); |
- } |
- return wrap(df); |
- } |
- |
- function getter(name) { |
- return function() { |
- scope.renderAllPending(); |
- return this.impl[name]; |
- }; |
- } |
- |
- function getterRequiresRendering(name) { |
- defineGetter(HTMLElement, name, getter(name)); |
- } |
- |
- [ |
- 'clientHeight', |
- 'clientLeft', |
- 'clientTop', |
- 'clientWidth', |
- 'offsetHeight', |
- 'offsetLeft', |
- 'offsetTop', |
- 'offsetWidth', |
- 'scrollHeight', |
- 'scrollWidth', |
- ].forEach(getterRequiresRendering); |
- |
- function getterAndSetterRequiresRendering(name) { |
- Object.defineProperty(HTMLElement.prototype, name, { |
- get: getter(name), |
- set: function(v) { |
- scope.renderAllPending(); |
- this.impl[name] = v; |
- }, |
- configurable: true, |
- enumerable: true |
- }); |
- } |
- |
- [ |
- 'scrollLeft', |
- 'scrollTop', |
- ].forEach(getterAndSetterRequiresRendering); |
- |
- function methodRequiresRendering(name) { |
- Object.defineProperty(HTMLElement.prototype, name, { |
- value: function() { |
- scope.renderAllPending(); |
- return this.impl[name].apply(this.impl, arguments); |
- }, |
- configurable: true, |
- enumerable: true |
- }); |
- } |
- |
- [ |
- 'getBoundingClientRect', |
- 'getClientRects', |
- 'scrollIntoView' |
- ].forEach(methodRequiresRendering); |
- |
- // HTMLElement is abstract so we use a subclass that has no members. |
- registerWrapper(OriginalHTMLElement, HTMLElement, |
- document.createElement('b')); |
- |
- scope.wrappers.HTMLElement = HTMLElement; |
- |
- // TODO: Find a better way to share these two with WrapperShadowRoot. |
- scope.getInnerHTML = getInnerHTML; |
- scope.setInnerHTML = setInnerHTML |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var wrap = scope.wrap; |
- |
- var OriginalHTMLCanvasElement = window.HTMLCanvasElement; |
- |
- function HTMLCanvasElement(node) { |
- HTMLElement.call(this, node); |
- } |
- HTMLCanvasElement.prototype = Object.create(HTMLElement.prototype); |
- |
- mixin(HTMLCanvasElement.prototype, { |
- getContext: function() { |
- var context = this.impl.getContext.apply(this.impl, arguments); |
- return context && wrap(context); |
- } |
- }); |
- |
- registerWrapper(OriginalHTMLCanvasElement, HTMLCanvasElement, |
- document.createElement('canvas')); |
- |
- scope.wrappers.HTMLCanvasElement = HTMLCanvasElement; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- |
- var OriginalHTMLContentElement = window.HTMLContentElement; |
- |
- function HTMLContentElement(node) { |
- HTMLElement.call(this, node); |
- } |
- HTMLContentElement.prototype = Object.create(HTMLElement.prototype); |
- mixin(HTMLContentElement.prototype, { |
- get select() { |
- return this.getAttribute('select'); |
- }, |
- set select(value) { |
- this.setAttribute('select', value); |
- }, |
- |
- setAttribute: function(n, v) { |
- HTMLElement.prototype.setAttribute.call(this, n, v); |
- if (String(n).toLowerCase() === 'select') |
- this.invalidateShadowRenderer(true); |
- } |
- |
- // getDistributedNodes is added in ShadowRenderer |
- }); |
- |
- if (OriginalHTMLContentElement) |
- registerWrapper(OriginalHTMLContentElement, HTMLContentElement); |
- |
- scope.wrappers.HTMLContentElement = HTMLContentElement; |
-})(window.ShadowDOMPolyfill); |
- |
-/* |
- * Copyright 2014 The Polymer Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var wrapHTMLCollection = scope.wrapHTMLCollection; |
- var unwrap = scope.unwrap; |
- |
- var OriginalHTMLFormElement = window.HTMLFormElement; |
- |
- function HTMLFormElement(node) { |
- HTMLElement.call(this, node); |
- } |
- HTMLFormElement.prototype = Object.create(HTMLElement.prototype); |
- mixin(HTMLFormElement.prototype, { |
- get elements() { |
- // Note: technically this should be an HTMLFormControlsCollection, but |
- // that inherits from HTMLCollection, so should be good enough. Spec: |
- // http://www.whatwg.org/specs/web-apps/current-work/multipage/common-dom-interfaces.html#htmlformcontrolscollection |
- return wrapHTMLCollection(unwrap(this).elements); |
- } |
- }); |
- |
- registerWrapper(OriginalHTMLFormElement, HTMLFormElement, |
- document.createElement('form')); |
- |
- scope.wrappers.HTMLFormElement = HTMLFormElement; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var rewrap = scope.rewrap; |
- |
- var OriginalHTMLImageElement = window.HTMLImageElement; |
- |
- function HTMLImageElement(node) { |
- HTMLElement.call(this, node); |
- } |
- HTMLImageElement.prototype = Object.create(HTMLElement.prototype); |
- |
- registerWrapper(OriginalHTMLImageElement, HTMLImageElement, |
- document.createElement('img')); |
- |
- function Image(width, height) { |
- if (!(this instanceof Image)) { |
- throw new TypeError( |
- 'DOM object constructor cannot be called as a function.'); |
- } |
- |
- var node = unwrap(document.createElement('img')); |
- HTMLElement.call(this, node); |
- rewrap(node, this); |
- |
- if (width !== undefined) |
- node.width = width; |
- if (height !== undefined) |
- node.height = height; |
- } |
- |
- Image.prototype = HTMLImageElement.prototype; |
- |
- scope.wrappers.HTMLImageElement = HTMLImageElement; |
- scope.wrappers.Image = Image; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var mixin = scope.mixin; |
- var NodeList = scope.wrappers.NodeList; |
- var registerWrapper = scope.registerWrapper; |
- |
- var OriginalHTMLShadowElement = window.HTMLShadowElement; |
- |
- function HTMLShadowElement(node) { |
- HTMLElement.call(this, node); |
- } |
- HTMLShadowElement.prototype = Object.create(HTMLElement.prototype); |
- |
- // getDistributedNodes is added in ShadowRenderer |
- |
- if (OriginalHTMLShadowElement) |
- registerWrapper(OriginalHTMLShadowElement, HTMLShadowElement); |
- |
- scope.wrappers.HTMLShadowElement = HTMLShadowElement; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- |
- var contentTable = new WeakMap(); |
- var templateContentsOwnerTable = new WeakMap(); |
- |
- // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html#dfn-template-contents-owner |
- function getTemplateContentsOwner(doc) { |
- if (!doc.defaultView) |
- return doc; |
- var d = templateContentsOwnerTable.get(doc); |
- if (!d) { |
- // TODO(arv): This should either be a Document or HTMLDocument depending |
- // on doc. |
- d = doc.implementation.createHTMLDocument(''); |
- while (d.lastChild) { |
- d.removeChild(d.lastChild); |
- } |
- templateContentsOwnerTable.set(doc, d); |
- } |
- return d; |
- } |
- |
- function extractContent(templateElement) { |
- // templateElement is not a wrapper here. |
- var doc = getTemplateContentsOwner(templateElement.ownerDocument); |
- var df = unwrap(doc.createDocumentFragment()); |
- var child; |
- while (child = templateElement.firstChild) { |
- df.appendChild(child); |
- } |
- return df; |
- } |
- |
- var OriginalHTMLTemplateElement = window.HTMLTemplateElement; |
- |
- function HTMLTemplateElement(node) { |
- HTMLElement.call(this, node); |
- if (!OriginalHTMLTemplateElement) { |
- var content = extractContent(node); |
- contentTable.set(this, wrap(content)); |
- } |
- } |
- HTMLTemplateElement.prototype = Object.create(HTMLElement.prototype); |
- |
- mixin(HTMLTemplateElement.prototype, { |
- get content() { |
- if (OriginalHTMLTemplateElement) |
- return wrap(this.impl.content); |
- return contentTable.get(this); |
- }, |
- |
- // TODO(arv): cloneNode needs to clone content. |
- |
- }); |
- |
- if (OriginalHTMLTemplateElement) |
- registerWrapper(OriginalHTMLTemplateElement, HTMLTemplateElement); |
- |
- scope.wrappers.HTMLTemplateElement = HTMLTemplateElement; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var registerWrapper = scope.registerWrapper; |
- |
- var OriginalHTMLMediaElement = window.HTMLMediaElement; |
- |
- function HTMLMediaElement(node) { |
- HTMLElement.call(this, node); |
- } |
- HTMLMediaElement.prototype = Object.create(HTMLElement.prototype); |
- |
- registerWrapper(OriginalHTMLMediaElement, HTMLMediaElement, |
- document.createElement('audio')); |
- |
- scope.wrappers.HTMLMediaElement = HTMLMediaElement; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLMediaElement = scope.wrappers.HTMLMediaElement; |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var rewrap = scope.rewrap; |
- |
- var OriginalHTMLAudioElement = window.HTMLAudioElement; |
- |
- function HTMLAudioElement(node) { |
- HTMLMediaElement.call(this, node); |
- } |
- HTMLAudioElement.prototype = Object.create(HTMLMediaElement.prototype); |
- |
- registerWrapper(OriginalHTMLAudioElement, HTMLAudioElement, |
- document.createElement('audio')); |
- |
- function Audio(src) { |
- if (!(this instanceof Audio)) { |
- throw new TypeError( |
- 'DOM object constructor cannot be called as a function.'); |
- } |
- |
- var node = unwrap(document.createElement('audio')); |
- HTMLMediaElement.call(this, node); |
- rewrap(node, this); |
- |
- node.setAttribute('preload', 'auto'); |
- if (src !== undefined) |
- node.setAttribute('src', src); |
- } |
- |
- Audio.prototype = HTMLAudioElement.prototype; |
- |
- scope.wrappers.HTMLAudioElement = HTMLAudioElement; |
- scope.wrappers.Audio = Audio; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var rewrap = scope.rewrap; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- |
- var OriginalHTMLOptionElement = window.HTMLOptionElement; |
- |
- function trimText(s) { |
- return s.replace(/\s+/g, ' ').trim(); |
- } |
- |
- function HTMLOptionElement(node) { |
- HTMLElement.call(this, node); |
- } |
- HTMLOptionElement.prototype = Object.create(HTMLElement.prototype); |
- mixin(HTMLOptionElement.prototype, { |
- get text() { |
- return trimText(this.textContent); |
- }, |
- set text(value) { |
- this.textContent = trimText(String(value)); |
- }, |
- get form() { |
- return wrap(unwrap(this).form); |
- } |
- }); |
- |
- registerWrapper(OriginalHTMLOptionElement, HTMLOptionElement, |
- document.createElement('option')); |
- |
- function Option(text, value, defaultSelected, selected) { |
- if (!(this instanceof Option)) { |
- throw new TypeError( |
- 'DOM object constructor cannot be called as a function.'); |
- } |
- |
- var node = unwrap(document.createElement('option')); |
- HTMLElement.call(this, node); |
- rewrap(node, this); |
- |
- if (text !== undefined) |
- node.text = text; |
- if (value !== undefined) |
- node.setAttribute('value', value); |
- if (defaultSelected === true) |
- node.setAttribute('selected', ''); |
- node.selected = selected === true; |
- } |
- |
- Option.prototype = HTMLOptionElement.prototype; |
- |
- scope.wrappers.HTMLOptionElement = HTMLOptionElement; |
- scope.wrappers.Option = Option; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2014 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- |
- var OriginalHTMLSelectElement = window.HTMLSelectElement; |
- |
- function HTMLSelectElement(node) { |
- HTMLElement.call(this, node); |
- } |
- HTMLSelectElement.prototype = Object.create(HTMLElement.prototype); |
- mixin(HTMLSelectElement.prototype, { |
- add: function(element, before) { |
- if (typeof before === 'object') // also includes null |
- before = unwrap(before); |
- unwrap(this).add(unwrap(element), before); |
- }, |
- |
- remove: function(indexOrNode) { |
- // Spec only allows index but implementations allow index or node. |
- // remove() is also allowed which is same as remove(undefined) |
- if (indexOrNode === undefined) { |
- HTMLElement.prototype.remove.call(this); |
- return; |
- } |
- |
- if (typeof indexOrNode === 'object') |
- indexOrNode = unwrap(indexOrNode); |
- |
- unwrap(this).remove(indexOrNode); |
- }, |
- |
- get form() { |
- return wrap(unwrap(this).form); |
- } |
- }); |
- |
- registerWrapper(OriginalHTMLSelectElement, HTMLSelectElement, |
- document.createElement('select')); |
- |
- scope.wrappers.HTMLSelectElement = HTMLSelectElement; |
-})(window.ShadowDOMPolyfill); |
- |
-/* |
- * Copyright 2014 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- var wrapHTMLCollection = scope.wrapHTMLCollection; |
- |
- var OriginalHTMLTableElement = window.HTMLTableElement; |
- |
- function HTMLTableElement(node) { |
- HTMLElement.call(this, node); |
- } |
- HTMLTableElement.prototype = Object.create(HTMLElement.prototype); |
- mixin(HTMLTableElement.prototype, { |
- get caption() { |
- return wrap(unwrap(this).caption); |
- }, |
- createCaption: function() { |
- return wrap(unwrap(this).createCaption()); |
- }, |
- |
- get tHead() { |
- return wrap(unwrap(this).tHead); |
- }, |
- createTHead: function() { |
- return wrap(unwrap(this).createTHead()); |
- }, |
- |
- createTFoot: function() { |
- return wrap(unwrap(this).createTFoot()); |
- }, |
- get tFoot() { |
- return wrap(unwrap(this).tFoot); |
- }, |
- |
- get tBodies() { |
- return wrapHTMLCollection(unwrap(this).tBodies); |
- }, |
- createTBody: function() { |
- return wrap(unwrap(this).createTBody()); |
- }, |
- |
- get rows() { |
- return wrapHTMLCollection(unwrap(this).rows); |
- }, |
- insertRow: function(index) { |
- return wrap(unwrap(this).insertRow(index)); |
- } |
- }); |
- |
- registerWrapper(OriginalHTMLTableElement, HTMLTableElement, |
- document.createElement('table')); |
- |
- scope.wrappers.HTMLTableElement = HTMLTableElement; |
-})(window.ShadowDOMPolyfill); |
- |
-/* |
- * Copyright 2014 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var wrapHTMLCollection = scope.wrapHTMLCollection; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- |
- var OriginalHTMLTableSectionElement = window.HTMLTableSectionElement; |
- |
- function HTMLTableSectionElement(node) { |
- HTMLElement.call(this, node); |
- } |
- HTMLTableSectionElement.prototype = Object.create(HTMLElement.prototype); |
- mixin(HTMLTableSectionElement.prototype, { |
- get rows() { |
- return wrapHTMLCollection(unwrap(this).rows); |
- }, |
- insertRow: function(index) { |
- return wrap(unwrap(this).insertRow(index)); |
- } |
- }); |
- |
- registerWrapper(OriginalHTMLTableSectionElement, HTMLTableSectionElement, |
- document.createElement('thead')); |
- |
- scope.wrappers.HTMLTableSectionElement = HTMLTableSectionElement; |
-})(window.ShadowDOMPolyfill); |
- |
-/* |
- * Copyright 2014 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var wrapHTMLCollection = scope.wrapHTMLCollection; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- |
- var OriginalHTMLTableRowElement = window.HTMLTableRowElement; |
- |
- function HTMLTableRowElement(node) { |
- HTMLElement.call(this, node); |
- } |
- HTMLTableRowElement.prototype = Object.create(HTMLElement.prototype); |
- mixin(HTMLTableRowElement.prototype, { |
- get cells() { |
- return wrapHTMLCollection(unwrap(this).cells); |
- }, |
- |
- insertCell: function(index) { |
- return wrap(unwrap(this).insertCell(index)); |
- } |
- }); |
- |
- registerWrapper(OriginalHTMLTableRowElement, HTMLTableRowElement, |
- document.createElement('tr')); |
- |
- scope.wrappers.HTMLTableRowElement = HTMLTableRowElement; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLContentElement = scope.wrappers.HTMLContentElement; |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var HTMLShadowElement = scope.wrappers.HTMLShadowElement; |
- var HTMLTemplateElement = scope.wrappers.HTMLTemplateElement; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- |
- var OriginalHTMLUnknownElement = window.HTMLUnknownElement; |
- |
- function HTMLUnknownElement(node) { |
- switch (node.localName) { |
- case 'content': |
- return new HTMLContentElement(node); |
- case 'shadow': |
- return new HTMLShadowElement(node); |
- case 'template': |
- return new HTMLTemplateElement(node); |
- } |
- HTMLElement.call(this, node); |
- } |
- HTMLUnknownElement.prototype = Object.create(HTMLElement.prototype); |
- registerWrapper(OriginalHTMLUnknownElement, HTMLUnknownElement); |
- scope.wrappers.HTMLUnknownElement = HTMLUnknownElement; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2014 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var Element = scope.wrappers.Element; |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var registerObject = scope.registerObject; |
- |
- var SVG_NS = 'http://www.w3.org/2000/svg'; |
- var svgTitleElement = document.createElementNS(SVG_NS, 'title'); |
- var SVGTitleElement = registerObject(svgTitleElement); |
- var SVGElement = Object.getPrototypeOf(SVGTitleElement.prototype).constructor; |
- |
- // IE11 does not have classList for SVG elements. The spec says that classList |
- // is an accessor on Element, but IE11 puts classList on HTMLElement, leaving |
- // SVGElement without a classList property. We therefore move the accessor for |
- // IE11. |
- if (!('classList' in svgTitleElement)) { |
- var descr = Object.getOwnPropertyDescriptor(Element.prototype, 'classList'); |
- Object.defineProperty(HTMLElement.prototype, 'classList', descr); |
- delete Element.prototype.classList; |
- } |
- |
- scope.wrappers.SVGElement = SVGElement; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2014 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- |
- var OriginalSVGUseElement = window.SVGUseElement; |
- |
- // IE uses SVGElement as parent interface, SVG2 (Blink & Gecko) uses |
- // SVGGraphicsElement. Use the <g> element to get the right prototype. |
- |
- var SVG_NS = 'http://www.w3.org/2000/svg'; |
- var gWrapper = wrap(document.createElementNS(SVG_NS, 'g')); |
- var useElement = document.createElementNS(SVG_NS, 'use'); |
- var SVGGElement = gWrapper.constructor; |
- var parentInterfacePrototype = Object.getPrototypeOf(SVGGElement.prototype); |
- var parentInterface = parentInterfacePrototype.constructor; |
- |
- function SVGUseElement(impl) { |
- parentInterface.call(this, impl); |
- } |
- |
- SVGUseElement.prototype = Object.create(parentInterfacePrototype); |
- |
- // Firefox does not expose instanceRoot. |
- if ('instanceRoot' in useElement) { |
- mixin(SVGUseElement.prototype, { |
- get instanceRoot() { |
- return wrap(unwrap(this).instanceRoot); |
- }, |
- get animatedInstanceRoot() { |
- return wrap(unwrap(this).animatedInstanceRoot); |
- }, |
- }); |
- } |
- |
- registerWrapper(OriginalSVGUseElement, SVGUseElement, useElement); |
- |
- scope.wrappers.SVGUseElement = SVGUseElement; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2014 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var EventTarget = scope.wrappers.EventTarget; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var wrap = scope.wrap; |
- |
- var OriginalSVGElementInstance = window.SVGElementInstance; |
- if (!OriginalSVGElementInstance) |
- return; |
- |
- function SVGElementInstance(impl) { |
- EventTarget.call(this, impl); |
- } |
- |
- SVGElementInstance.prototype = Object.create(EventTarget.prototype); |
- mixin(SVGElementInstance.prototype, { |
- /** @type {SVGElement} */ |
- get correspondingElement() { |
- return wrap(this.impl.correspondingElement); |
- }, |
- |
- /** @type {SVGUseElement} */ |
- get correspondingUseElement() { |
- return wrap(this.impl.correspondingUseElement); |
- }, |
- |
- /** @type {SVGElementInstance} */ |
- get parentNode() { |
- return wrap(this.impl.parentNode); |
- }, |
- |
- /** @type {SVGElementInstanceList} */ |
- get childNodes() { |
- throw new Error('Not implemented'); |
- }, |
- |
- /** @type {SVGElementInstance} */ |
- get firstChild() { |
- return wrap(this.impl.firstChild); |
- }, |
- |
- /** @type {SVGElementInstance} */ |
- get lastChild() { |
- return wrap(this.impl.lastChild); |
- }, |
- |
- /** @type {SVGElementInstance} */ |
- get previousSibling() { |
- return wrap(this.impl.previousSibling); |
- }, |
- |
- /** @type {SVGElementInstance} */ |
- get nextSibling() { |
- return wrap(this.impl.nextSibling); |
- } |
- }); |
- |
- registerWrapper(OriginalSVGElementInstance, SVGElementInstance); |
- |
- scope.wrappers.SVGElementInstance = SVGElementInstance; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var unwrapIfNeeded = scope.unwrapIfNeeded; |
- var wrap = scope.wrap; |
- |
- var OriginalCanvasRenderingContext2D = window.CanvasRenderingContext2D; |
- |
- function CanvasRenderingContext2D(impl) { |
- this.impl = impl; |
- } |
- |
- mixin(CanvasRenderingContext2D.prototype, { |
- get canvas() { |
- return wrap(this.impl.canvas); |
- }, |
- |
- drawImage: function() { |
- arguments[0] = unwrapIfNeeded(arguments[0]); |
- this.impl.drawImage.apply(this.impl, arguments); |
- }, |
- |
- createPattern: function() { |
- arguments[0] = unwrap(arguments[0]); |
- return this.impl.createPattern.apply(this.impl, arguments); |
- } |
- }); |
- |
- registerWrapper(OriginalCanvasRenderingContext2D, CanvasRenderingContext2D, |
- document.createElement('canvas').getContext('2d')); |
- |
- scope.wrappers.CanvasRenderingContext2D = CanvasRenderingContext2D; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var unwrapIfNeeded = scope.unwrapIfNeeded; |
- var wrap = scope.wrap; |
- |
- var OriginalWebGLRenderingContext = window.WebGLRenderingContext; |
- |
- // IE10 does not have WebGL. |
- if (!OriginalWebGLRenderingContext) |
- return; |
- |
- function WebGLRenderingContext(impl) { |
- this.impl = impl; |
- } |
- |
- mixin(WebGLRenderingContext.prototype, { |
- get canvas() { |
- return wrap(this.impl.canvas); |
- }, |
- |
- texImage2D: function() { |
- arguments[5] = unwrapIfNeeded(arguments[5]); |
- this.impl.texImage2D.apply(this.impl, arguments); |
- }, |
- |
- texSubImage2D: function() { |
- arguments[6] = unwrapIfNeeded(arguments[6]); |
- this.impl.texSubImage2D.apply(this.impl, arguments); |
- } |
- }); |
- |
- // Blink/WebKit has broken DOM bindings. Usually we would create an instance |
- // of the object and pass it into registerWrapper as a "blueprint" but |
- // creating WebGL contexts is expensive and might fail so we use a dummy |
- // object with dummy instance properties for these broken browsers. |
- var instanceProperties = /WebKit/.test(navigator.userAgent) ? |
- {drawingBufferHeight: null, drawingBufferWidth: null} : {}; |
- |
- registerWrapper(OriginalWebGLRenderingContext, WebGLRenderingContext, |
- instanceProperties); |
- |
- scope.wrappers.WebGLRenderingContext = WebGLRenderingContext; |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var unwrapIfNeeded = scope.unwrapIfNeeded; |
- var wrap = scope.wrap; |
- |
- var OriginalRange = window.Range; |
- |
- function Range(impl) { |
- this.impl = impl; |
- } |
- Range.prototype = { |
- get startContainer() { |
- return wrap(this.impl.startContainer); |
- }, |
- get endContainer() { |
- return wrap(this.impl.endContainer); |
- }, |
- get commonAncestorContainer() { |
- return wrap(this.impl.commonAncestorContainer); |
- }, |
- setStart: function(refNode,offset) { |
- this.impl.setStart(unwrapIfNeeded(refNode), offset); |
- }, |
- setEnd: function(refNode,offset) { |
- this.impl.setEnd(unwrapIfNeeded(refNode), offset); |
- }, |
- setStartBefore: function(refNode) { |
- this.impl.setStartBefore(unwrapIfNeeded(refNode)); |
- }, |
- setStartAfter: function(refNode) { |
- this.impl.setStartAfter(unwrapIfNeeded(refNode)); |
- }, |
- setEndBefore: function(refNode) { |
- this.impl.setEndBefore(unwrapIfNeeded(refNode)); |
- }, |
- setEndAfter: function(refNode) { |
- this.impl.setEndAfter(unwrapIfNeeded(refNode)); |
- }, |
- selectNode: function(refNode) { |
- this.impl.selectNode(unwrapIfNeeded(refNode)); |
- }, |
- selectNodeContents: function(refNode) { |
- this.impl.selectNodeContents(unwrapIfNeeded(refNode)); |
- }, |
- compareBoundaryPoints: function(how, sourceRange) { |
- return this.impl.compareBoundaryPoints(how, unwrap(sourceRange)); |
- }, |
- extractContents: function() { |
- return wrap(this.impl.extractContents()); |
- }, |
- cloneContents: function() { |
- return wrap(this.impl.cloneContents()); |
- }, |
- insertNode: function(node) { |
- this.impl.insertNode(unwrapIfNeeded(node)); |
- }, |
- surroundContents: function(newParent) { |
- this.impl.surroundContents(unwrapIfNeeded(newParent)); |
- }, |
- cloneRange: function() { |
- return wrap(this.impl.cloneRange()); |
- }, |
- isPointInRange: function(node, offset) { |
- return this.impl.isPointInRange(unwrapIfNeeded(node), offset); |
- }, |
- comparePoint: function(node, offset) { |
- return this.impl.comparePoint(unwrapIfNeeded(node), offset); |
- }, |
- intersectsNode: function(node) { |
- return this.impl.intersectsNode(unwrapIfNeeded(node)); |
- }, |
- toString: function() { |
- return this.impl.toString(); |
- } |
- }; |
- |
- // IE9 does not have createContextualFragment. |
- if (OriginalRange.prototype.createContextualFragment) { |
- Range.prototype.createContextualFragment = function(html) { |
- return wrap(this.impl.createContextualFragment(html)); |
- }; |
- } |
- |
- registerWrapper(window.Range, Range, document.createRange()); |
- |
- scope.wrappers.Range = Range; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var GetElementsByInterface = scope.GetElementsByInterface; |
- var ParentNodeInterface = scope.ParentNodeInterface; |
- var SelectorsInterface = scope.SelectorsInterface; |
- var mixin = scope.mixin; |
- var registerObject = scope.registerObject; |
- |
- var DocumentFragment = registerObject(document.createDocumentFragment()); |
- mixin(DocumentFragment.prototype, ParentNodeInterface); |
- mixin(DocumentFragment.prototype, SelectorsInterface); |
- mixin(DocumentFragment.prototype, GetElementsByInterface); |
- |
- var Comment = registerObject(document.createComment('')); |
- |
- scope.wrappers.Comment = Comment; |
- scope.wrappers.DocumentFragment = DocumentFragment; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var DocumentFragment = scope.wrappers.DocumentFragment; |
- var TreeScope = scope.TreeScope; |
- var elementFromPoint = scope.elementFromPoint; |
- var getInnerHTML = scope.getInnerHTML; |
- var getTreeScope = scope.getTreeScope; |
- var mixin = scope.mixin; |
- var rewrap = scope.rewrap; |
- var setInnerHTML = scope.setInnerHTML; |
- var unwrap = scope.unwrap; |
- |
- var shadowHostTable = new WeakMap(); |
- var nextOlderShadowTreeTable = new WeakMap(); |
- |
- var spaceCharRe = /[ \t\n\r\f]/; |
- |
- function ShadowRoot(hostWrapper) { |
- var node = unwrap(hostWrapper.impl.ownerDocument.createDocumentFragment()); |
- DocumentFragment.call(this, node); |
- |
- // createDocumentFragment associates the node with a wrapper |
- // DocumentFragment instance. Override that. |
- rewrap(node, this); |
- |
- var oldShadowRoot = hostWrapper.shadowRoot; |
- nextOlderShadowTreeTable.set(this, oldShadowRoot); |
- |
- this.treeScope_ = |
- new TreeScope(this, getTreeScope(oldShadowRoot || hostWrapper)); |
- |
- shadowHostTable.set(this, hostWrapper); |
- } |
- ShadowRoot.prototype = Object.create(DocumentFragment.prototype); |
- mixin(ShadowRoot.prototype, { |
- get innerHTML() { |
- return getInnerHTML(this); |
- }, |
- set innerHTML(value) { |
- setInnerHTML(this, value); |
- this.invalidateShadowRenderer(); |
- }, |
- |
- get olderShadowRoot() { |
- return nextOlderShadowTreeTable.get(this) || null; |
- }, |
- |
- get host() { |
- return shadowHostTable.get(this) || null; |
- }, |
- |
- invalidateShadowRenderer: function() { |
- return shadowHostTable.get(this).invalidateShadowRenderer(); |
- }, |
- |
- elementFromPoint: function(x, y) { |
- return elementFromPoint(this, this.ownerDocument, x, y); |
- }, |
- |
- getElementById: function(id) { |
- if (spaceCharRe.test(id)) |
- return null; |
- return this.querySelector('[id="' + id + '"]'); |
- } |
- }); |
- |
- scope.wrappers.ShadowRoot = ShadowRoot; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var Element = scope.wrappers.Element; |
- var HTMLContentElement = scope.wrappers.HTMLContentElement; |
- var HTMLShadowElement = scope.wrappers.HTMLShadowElement; |
- var Node = scope.wrappers.Node; |
- var ShadowRoot = scope.wrappers.ShadowRoot; |
- var assert = scope.assert; |
- var getTreeScope = scope.getTreeScope; |
- var mixin = scope.mixin; |
- var oneOf = scope.oneOf; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- |
- /** |
- * Updates the fields of a wrapper to a snapshot of the logical DOM as needed. |
- * Up means parentNode |
- * Sideways means previous and next sibling. |
- * @param {!Node} wrapper |
- */ |
- function updateWrapperUpAndSideways(wrapper) { |
- wrapper.previousSibling_ = wrapper.previousSibling; |
- wrapper.nextSibling_ = wrapper.nextSibling; |
- wrapper.parentNode_ = wrapper.parentNode; |
- } |
- |
- /** |
- * Updates the fields of a wrapper to a snapshot of the logical DOM as needed. |
- * Down means first and last child |
- * @param {!Node} wrapper |
- */ |
- function updateWrapperDown(wrapper) { |
- wrapper.firstChild_ = wrapper.firstChild; |
- wrapper.lastChild_ = wrapper.lastChild; |
- } |
- |
- function updateAllChildNodes(parentNodeWrapper) { |
- assert(parentNodeWrapper instanceof Node); |
- for (var childWrapper = parentNodeWrapper.firstChild; |
- childWrapper; |
- childWrapper = childWrapper.nextSibling) { |
- updateWrapperUpAndSideways(childWrapper); |
- } |
- updateWrapperDown(parentNodeWrapper); |
- } |
- |
- function insertBefore(parentNodeWrapper, newChildWrapper, refChildWrapper) { |
- var parentNode = unwrap(parentNodeWrapper); |
- var newChild = unwrap(newChildWrapper); |
- var refChild = refChildWrapper ? unwrap(refChildWrapper) : null; |
- |
- remove(newChildWrapper); |
- updateWrapperUpAndSideways(newChildWrapper); |
- |
- if (!refChildWrapper) { |
- parentNodeWrapper.lastChild_ = parentNodeWrapper.lastChild; |
- if (parentNodeWrapper.lastChild === parentNodeWrapper.firstChild) |
- parentNodeWrapper.firstChild_ = parentNodeWrapper.firstChild; |
- |
- var lastChildWrapper = wrap(parentNode.lastChild); |
- if (lastChildWrapper) |
- lastChildWrapper.nextSibling_ = lastChildWrapper.nextSibling; |
- } else { |
- if (parentNodeWrapper.firstChild === refChildWrapper) |
- parentNodeWrapper.firstChild_ = refChildWrapper; |
- |
- refChildWrapper.previousSibling_ = refChildWrapper.previousSibling; |
- } |
- |
- parentNode.insertBefore(newChild, refChild); |
- } |
- |
- function remove(nodeWrapper) { |
- var node = unwrap(nodeWrapper) |
- var parentNode = node.parentNode; |
- if (!parentNode) |
- return; |
- |
- var parentNodeWrapper = wrap(parentNode); |
- updateWrapperUpAndSideways(nodeWrapper); |
- |
- if (nodeWrapper.previousSibling) |
- nodeWrapper.previousSibling.nextSibling_ = nodeWrapper; |
- if (nodeWrapper.nextSibling) |
- nodeWrapper.nextSibling.previousSibling_ = nodeWrapper; |
- |
- if (parentNodeWrapper.lastChild === nodeWrapper) |
- parentNodeWrapper.lastChild_ = nodeWrapper; |
- if (parentNodeWrapper.firstChild === nodeWrapper) |
- parentNodeWrapper.firstChild_ = nodeWrapper; |
- |
- parentNode.removeChild(node); |
- } |
- |
- var distributedNodesTable = new WeakMap(); |
- var destinationInsertionPointsTable = new WeakMap(); |
- var rendererForHostTable = new WeakMap(); |
- |
- function resetDistributedNodes(insertionPoint) { |
- distributedNodesTable.set(insertionPoint, []); |
- } |
- |
- function getDistributedNodes(insertionPoint) { |
- var rv = distributedNodesTable.get(insertionPoint); |
- if (!rv) |
- distributedNodesTable.set(insertionPoint, rv = []); |
- return rv; |
- } |
- |
- function getChildNodesSnapshot(node) { |
- var result = [], i = 0; |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- result[i++] = child; |
- } |
- return result; |
- } |
- |
- var request = oneOf(window, [ |
- 'requestAnimationFrame', |
- 'mozRequestAnimationFrame', |
- 'webkitRequestAnimationFrame', |
- 'setTimeout' |
- ]); |
- |
- var pendingDirtyRenderers = []; |
- var renderTimer; |
- |
- function renderAllPending() { |
- // TODO(arv): Order these in document order. That way we do not have to |
- // render something twice. |
- for (var i = 0; i < pendingDirtyRenderers.length; i++) { |
- var renderer = pendingDirtyRenderers[i]; |
- var parentRenderer = renderer.parentRenderer; |
- if (parentRenderer && parentRenderer.dirty) |
- continue; |
- renderer.render(); |
- } |
- |
- pendingDirtyRenderers = []; |
- } |
- |
- function handleRequestAnimationFrame() { |
- renderTimer = null; |
- renderAllPending(); |
- } |
- |
- /** |
- * Returns existing shadow renderer for a host or creates it if it is needed. |
- * @params {!Element} host |
- * @return {!ShadowRenderer} |
- */ |
- function getRendererForHost(host) { |
- var renderer = rendererForHostTable.get(host); |
- if (!renderer) { |
- renderer = new ShadowRenderer(host); |
- rendererForHostTable.set(host, renderer); |
- } |
- return renderer; |
- } |
- |
- function getShadowRootAncestor(node) { |
- var root = getTreeScope(node).root; |
- if (root instanceof ShadowRoot) |
- return root; |
- return null; |
- } |
- |
- function getRendererForShadowRoot(shadowRoot) { |
- return getRendererForHost(shadowRoot.host); |
- } |
- |
- var spliceDiff = new ArraySplice(); |
- spliceDiff.equals = function(renderNode, rawNode) { |
- return unwrap(renderNode.node) === rawNode; |
- }; |
- |
- /** |
- * RenderNode is used as an in memory "render tree". When we render the |
- * composed tree we create a tree of RenderNodes, then we diff this against |
- * the real DOM tree and make minimal changes as needed. |
- */ |
- function RenderNode(node) { |
- this.skip = false; |
- this.node = node; |
- this.childNodes = []; |
- } |
- |
- RenderNode.prototype = { |
- append: function(node) { |
- var rv = new RenderNode(node); |
- this.childNodes.push(rv); |
- return rv; |
- }, |
- |
- sync: function(opt_added) { |
- if (this.skip) |
- return; |
- |
- var nodeWrapper = this.node; |
- // plain array of RenderNodes |
- var newChildren = this.childNodes; |
- // plain array of real nodes. |
- var oldChildren = getChildNodesSnapshot(unwrap(nodeWrapper)); |
- var added = opt_added || new WeakMap(); |
- |
- var splices = spliceDiff.calculateSplices(newChildren, oldChildren); |
- |
- var newIndex = 0, oldIndex = 0; |
- var lastIndex = 0; |
- for (var i = 0; i < splices.length; i++) { |
- var splice = splices[i]; |
- for (; lastIndex < splice.index; lastIndex++) { |
- oldIndex++; |
- newChildren[newIndex++].sync(added); |
- } |
- |
- var removedCount = splice.removed.length; |
- for (var j = 0; j < removedCount; j++) { |
- var wrapper = wrap(oldChildren[oldIndex++]); |
- if (!added.get(wrapper)) |
- remove(wrapper); |
- } |
- |
- var addedCount = splice.addedCount; |
- var refNode = oldChildren[oldIndex] && wrap(oldChildren[oldIndex]); |
- for (var j = 0; j < addedCount; j++) { |
- var newChildRenderNode = newChildren[newIndex++]; |
- var newChildWrapper = newChildRenderNode.node; |
- insertBefore(nodeWrapper, newChildWrapper, refNode); |
- |
- // Keep track of added so that we do not remove the node after it |
- // has been added. |
- added.set(newChildWrapper, true); |
- |
- newChildRenderNode.sync(added); |
- } |
- |
- lastIndex += addedCount; |
- } |
- |
- for (var i = lastIndex; i < newChildren.length; i++) { |
- newChildren[i].sync(added); |
- } |
- } |
- }; |
- |
- function ShadowRenderer(host) { |
- this.host = host; |
- this.dirty = false; |
- this.invalidateAttributes(); |
- this.associateNode(host); |
- } |
- |
- ShadowRenderer.prototype = { |
- |
- // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#rendering-shadow-trees |
- render: function(opt_renderNode) { |
- if (!this.dirty) |
- return; |
- |
- this.invalidateAttributes(); |
- |
- var host = this.host; |
- |
- this.distribution(host); |
- var renderNode = opt_renderNode || new RenderNode(host); |
- this.buildRenderTree(renderNode, host); |
- |
- var topMostRenderer = !opt_renderNode; |
- if (topMostRenderer) |
- renderNode.sync(); |
- |
- this.dirty = false; |
- }, |
- |
- get parentRenderer() { |
- return getTreeScope(this.host).renderer; |
- }, |
- |
- invalidate: function() { |
- if (!this.dirty) { |
- this.dirty = true; |
- var parentRenderer = this.parentRenderer; |
- if (parentRenderer) |
- parentRenderer.invalidate(); |
- pendingDirtyRenderers.push(this); |
- if (renderTimer) |
- return; |
- renderTimer = window[request](handleRequestAnimationFrame, 0); |
- } |
- }, |
- |
- // http://w3c.github.io/webcomponents/spec/shadow/#distribution-algorithms |
- distribution: function(root) { |
- this.resetAll(root); |
- this.distributionResolution(root); |
- }, |
- |
- resetAll: function(node) { |
- if (isInsertionPoint(node)) |
- resetDistributedNodes(node); |
- else |
- resetDestinationInsertionPoints(node); |
- |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- this.resetAll(child); |
- } |
- |
- if (node.shadowRoot) |
- this.resetAll(node.shadowRoot); |
- |
- if (node.olderShadowRoot) |
- this.resetAll(node.olderShadowRoot); |
- }, |
- |
- // http://w3c.github.io/webcomponents/spec/shadow/#distribution-results |
- distributionResolution: function(node) { |
- if (isShadowHost(node)) { |
- var shadowHost = node; |
- // 1.1 |
- var pool = poolPopulation(shadowHost); |
- |
- var shadowTrees = getShadowTrees(shadowHost); |
- |
- // 1.2 |
- for (var i = 0; i < shadowTrees.length; i++) { |
- // 1.2.1 |
- this.poolDistribution(shadowTrees[i], pool); |
- } |
- |
- // 1.3 |
- for (var i = shadowTrees.length - 1; i >= 0; i--) { |
- var shadowTree = shadowTrees[i]; |
- |
- // 1.3.1 |
- // TODO(arv): We should keep the shadow insertion points on the |
- // shadow root (or renderer) so we don't have to search the tree |
- // every time. |
- var shadow = getShadowInsertionPoint(shadowTree); |
- |
- // 1.3.2 |
- if (shadow) { |
- |
- // 1.3.2.1 |
- var olderShadowRoot = shadowTree.olderShadowRoot; |
- if (olderShadowRoot) { |
- // 1.3.2.1.1 |
- pool = poolPopulation(olderShadowRoot); |
- } |
- |
- // 1.3.2.2 |
- for (var j = 0; j < pool.length; j++) { |
- // 1.3.2.2.1 |
- destributeNodeInto(pool[j], shadow); |
- } |
- } |
- |
- // 1.3.3 |
- this.distributionResolution(shadowTree); |
- } |
- } |
- |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- this.distributionResolution(child); |
- } |
- }, |
- |
- // http://w3c.github.io/webcomponents/spec/shadow/#dfn-pool-distribution-algorithm |
- poolDistribution: function (node, pool) { |
- if (node instanceof HTMLShadowElement) |
- return; |
- |
- if (node instanceof HTMLContentElement) { |
- var content = node; |
- this.updateDependentAttributes(content.getAttribute('select')); |
- |
- var anyDistributed = false; |
- |
- // 1.1 |
- for (var i = 0; i < pool.length; i++) { |
- var node = pool[i]; |
- if (!node) |
- continue; |
- if (matches(node, content)) { |
- destributeNodeInto(node, content); |
- pool[i] = undefined; |
- anyDistributed = true; |
- } |
- } |
- |
- // 1.2 |
- // Fallback content |
- if (!anyDistributed) { |
- for (var child = content.firstChild; |
- child; |
- child = child.nextSibling) { |
- destributeNodeInto(child, content); |
- } |
- } |
- |
- return; |
- } |
- |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- this.poolDistribution(child, pool); |
- } |
- }, |
- |
- buildRenderTree: function(renderNode, node) { |
- var children = this.compose(node); |
- for (var i = 0; i < children.length; i++) { |
- var child = children[i]; |
- var childRenderNode = renderNode.append(child); |
- this.buildRenderTree(childRenderNode, child); |
- } |
- |
- if (isShadowHost(node)) { |
- var renderer = getRendererForHost(node); |
- renderer.dirty = false; |
- } |
- |
- }, |
- |
- compose: function(node) { |
- var children = []; |
- var p = node.shadowRoot || node; |
- for (var child = p.firstChild; child; child = child.nextSibling) { |
- if (isInsertionPoint(child)) { |
- this.associateNode(p); |
- var distributedNodes = getDistributedNodes(child); |
- for (var j = 0; j < distributedNodes.length; j++) { |
- var distributedNode = distributedNodes[j]; |
- if (isFinalDestination(child, distributedNode)) |
- children.push(distributedNode); |
- } |
- } else { |
- children.push(child); |
- } |
- } |
- return children; |
- }, |
- |
- /** |
- * Invalidates the attributes used to keep track of which attributes may |
- * cause the renderer to be invalidated. |
- */ |
- invalidateAttributes: function() { |
- this.attributes = Object.create(null); |
- }, |
- |
- /** |
- * Parses the selector and makes this renderer dependent on the attribute |
- * being used in the selector. |
- * @param {string} selector |
- */ |
- updateDependentAttributes: function(selector) { |
- if (!selector) |
- return; |
- |
- var attributes = this.attributes; |
- |
- // .class |
- if (/\.\w+/.test(selector)) |
- attributes['class'] = true; |
- |
- // #id |
- if (/#\w+/.test(selector)) |
- attributes['id'] = true; |
- |
- selector.replace(/\[\s*([^\s=\|~\]]+)/g, function(_, name) { |
- attributes[name] = true; |
- }); |
- |
- // Pseudo selectors have been removed from the spec. |
- }, |
- |
- dependsOnAttribute: function(name) { |
- return this.attributes[name]; |
- }, |
- |
- associateNode: function(node) { |
- node.impl.polymerShadowRenderer_ = this; |
- } |
- }; |
- |
- // http://w3c.github.io/webcomponents/spec/shadow/#dfn-pool-population-algorithm |
- function poolPopulation(node) { |
- var pool = []; |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- if (isInsertionPoint(child)) { |
- pool.push.apply(pool, getDistributedNodes(child)); |
- } else { |
- pool.push(child); |
- } |
- } |
- return pool; |
- } |
- |
- function getShadowInsertionPoint(node) { |
- if (node instanceof HTMLShadowElement) |
- return node; |
- if (node instanceof HTMLContentElement) |
- return null; |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- var res = getShadowInsertionPoint(child); |
- if (res) |
- return res; |
- } |
- return null; |
- } |
- |
- function destributeNodeInto(child, insertionPoint) { |
- getDistributedNodes(insertionPoint).push(child); |
- var points = destinationInsertionPointsTable.get(child); |
- if (!points) |
- destinationInsertionPointsTable.set(child, [insertionPoint]); |
- else |
- points.push(insertionPoint); |
- } |
- |
- function getDestinationInsertionPoints(node) { |
- return destinationInsertionPointsTable.get(node); |
- } |
- |
- function resetDestinationInsertionPoints(node) { |
- // IE11 crashes when delete is used. |
- destinationInsertionPointsTable.set(node, undefined); |
- } |
- |
- // AllowedSelectors : |
- // TypeSelector |
- // * |
- // ClassSelector |
- // IDSelector |
- // AttributeSelector |
- var selectorStartCharRe = /^[*.#[a-zA-Z_|]/; |
- |
- function matches(node, contentElement) { |
- var select = contentElement.getAttribute('select'); |
- if (!select) |
- return true; |
- |
- // Here we know the select attribute is a non empty string. |
- select = select.trim(); |
- if (!select) |
- return true; |
- |
- if (!(node instanceof Element)) |
- return false; |
- |
- if (!selectorStartCharRe.test(select)) |
- return false; |
- |
- try { |
- return node.matches(select); |
- } catch (ex) { |
- // Invalid selector. |
- return false; |
- } |
- } |
- |
- function isFinalDestination(insertionPoint, node) { |
- var points = getDestinationInsertionPoints(node); |
- return points && points[points.length - 1] === insertionPoint; |
- } |
- |
- function isInsertionPoint(node) { |
- return node instanceof HTMLContentElement || |
- node instanceof HTMLShadowElement; |
- } |
- |
- function isShadowHost(shadowHost) { |
- return shadowHost.shadowRoot; |
- } |
- |
- // Returns the shadow trees as an array, with the youngest tree at the |
- // beginning of the array. |
- function getShadowTrees(host) { |
- var trees = []; |
- |
- for (var tree = host.shadowRoot; tree; tree = tree.olderShadowRoot) { |
- trees.push(tree); |
- } |
- return trees; |
- } |
- |
- function render(host) { |
- new ShadowRenderer(host).render(); |
- }; |
- |
- // Need to rerender shadow host when: |
- // |
- // - a direct child to the ShadowRoot is added or removed |
- // - a direct child to the host is added or removed |
- // - a new shadow root is created |
- // - a direct child to a content/shadow element is added or removed |
- // - a sibling to a content/shadow element is added or removed |
- // - content[select] is changed |
- // - an attribute in a direct child to a host is modified |
- |
- /** |
- * This gets called when a node was added or removed to it. |
- */ |
- Node.prototype.invalidateShadowRenderer = function(force) { |
- var renderer = this.impl.polymerShadowRenderer_; |
- if (renderer) { |
- renderer.invalidate(); |
- return true; |
- } |
- |
- return false; |
- }; |
- |
- HTMLContentElement.prototype.getDistributedNodes = |
- HTMLShadowElement.prototype.getDistributedNodes = function() { |
- // TODO(arv): We should only rerender the dirty ancestor renderers (from |
- // the root and down). |
- renderAllPending(); |
- return getDistributedNodes(this); |
- }; |
- |
- Element.prototype.getDestinationInsertionPoints = function() { |
- renderAllPending(); |
- return getDestinationInsertionPoints(this) || []; |
- }; |
- |
- HTMLContentElement.prototype.nodeIsInserted_ = |
- HTMLShadowElement.prototype.nodeIsInserted_ = function() { |
- // Invalidate old renderer if any. |
- this.invalidateShadowRenderer(); |
- |
- var shadowRoot = getShadowRootAncestor(this); |
- var renderer; |
- if (shadowRoot) |
- renderer = getRendererForShadowRoot(shadowRoot); |
- this.impl.polymerShadowRenderer_ = renderer; |
- if (renderer) |
- renderer.invalidate(); |
- }; |
- |
- scope.getRendererForHost = getRendererForHost; |
- scope.getShadowTrees = getShadowTrees; |
- scope.renderAllPending = renderAllPending; |
- |
- scope.getDestinationInsertionPoints = getDestinationInsertionPoints; |
- |
- // Exposed for testing |
- scope.visual = { |
- insertBefore: insertBefore, |
- remove: remove, |
- }; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var HTMLElement = scope.wrappers.HTMLElement; |
- var assert = scope.assert; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- |
- var elementsWithFormProperty = [ |
- 'HTMLButtonElement', |
- 'HTMLFieldSetElement', |
- 'HTMLInputElement', |
- 'HTMLKeygenElement', |
- 'HTMLLabelElement', |
- 'HTMLLegendElement', |
- 'HTMLObjectElement', |
- // HTMLOptionElement is handled in HTMLOptionElement.js |
- 'HTMLOutputElement', |
- // HTMLSelectElement is handled in HTMLSelectElement.js |
- 'HTMLTextAreaElement', |
- ]; |
- |
- function createWrapperConstructor(name) { |
- if (!window[name]) |
- return; |
- |
- // Ensure we are not overriding an already existing constructor. |
- assert(!scope.wrappers[name]); |
- |
- var GeneratedWrapper = function(node) { |
- // At this point all of them extend HTMLElement. |
- HTMLElement.call(this, node); |
- } |
- GeneratedWrapper.prototype = Object.create(HTMLElement.prototype); |
- mixin(GeneratedWrapper.prototype, { |
- get form() { |
- return wrap(unwrap(this).form); |
- }, |
- }); |
- |
- registerWrapper(window[name], GeneratedWrapper, |
- document.createElement(name.slice(4, -7))); |
- scope.wrappers[name] = GeneratedWrapper; |
- } |
- |
- elementsWithFormProperty.forEach(createWrapperConstructor); |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2014 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- var unwrapIfNeeded = scope.unwrapIfNeeded; |
- var wrap = scope.wrap; |
- |
- var OriginalSelection = window.Selection; |
- |
- function Selection(impl) { |
- this.impl = impl; |
- } |
- Selection.prototype = { |
- get anchorNode() { |
- return wrap(this.impl.anchorNode); |
- }, |
- get focusNode() { |
- return wrap(this.impl.focusNode); |
- }, |
- addRange: function(range) { |
- this.impl.addRange(unwrap(range)); |
- }, |
- collapse: function(node, index) { |
- this.impl.collapse(unwrapIfNeeded(node), index); |
- }, |
- containsNode: function(node, allowPartial) { |
- return this.impl.containsNode(unwrapIfNeeded(node), allowPartial); |
- }, |
- extend: function(node, offset) { |
- this.impl.extend(unwrapIfNeeded(node), offset); |
- }, |
- getRangeAt: function(index) { |
- return wrap(this.impl.getRangeAt(index)); |
- }, |
- removeRange: function(range) { |
- this.impl.removeRange(unwrap(range)); |
- }, |
- selectAllChildren: function(node) { |
- this.impl.selectAllChildren(unwrapIfNeeded(node)); |
- }, |
- toString: function() { |
- return this.impl.toString(); |
- } |
- }; |
- |
- // WebKit extensions. Not implemented. |
- // readonly attribute Node baseNode; |
- // readonly attribute long baseOffset; |
- // readonly attribute Node extentNode; |
- // readonly attribute long extentOffset; |
- // [RaisesException] void setBaseAndExtent([Default=Undefined] optional Node baseNode, |
- // [Default=Undefined] optional long baseOffset, |
- // [Default=Undefined] optional Node extentNode, |
- // [Default=Undefined] optional long extentOffset); |
- // [RaisesException, ImplementedAs=collapse] void setPosition([Default=Undefined] optional Node node, |
- // [Default=Undefined] optional long offset); |
- |
- registerWrapper(window.Selection, Selection, window.getSelection()); |
- |
- scope.wrappers.Selection = Selection; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var GetElementsByInterface = scope.GetElementsByInterface; |
- var Node = scope.wrappers.Node; |
- var ParentNodeInterface = scope.ParentNodeInterface; |
- var Selection = scope.wrappers.Selection; |
- var SelectorsInterface = scope.SelectorsInterface; |
- var ShadowRoot = scope.wrappers.ShadowRoot; |
- var TreeScope = scope.TreeScope; |
- var cloneNode = scope.cloneNode; |
- var defineWrapGetter = scope.defineWrapGetter; |
- var elementFromPoint = scope.elementFromPoint; |
- var forwardMethodsToWrapper = scope.forwardMethodsToWrapper; |
- var matchesNames = scope.matchesNames; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var renderAllPending = scope.renderAllPending; |
- var rewrap = scope.rewrap; |
- var unwrap = scope.unwrap; |
- var wrap = scope.wrap; |
- var wrapEventTargetMethods = scope.wrapEventTargetMethods; |
- var wrapNodeList = scope.wrapNodeList; |
- |
- var implementationTable = new WeakMap(); |
- |
- function Document(node) { |
- Node.call(this, node); |
- this.treeScope_ = new TreeScope(this, null); |
- } |
- Document.prototype = Object.create(Node.prototype); |
- |
- defineWrapGetter(Document, 'documentElement'); |
- |
- // Conceptually both body and head can be in a shadow but suporting that seems |
- // overkill at this point. |
- defineWrapGetter(Document, 'body'); |
- defineWrapGetter(Document, 'head'); |
- |
- // document cannot be overridden so we override a bunch of its methods |
- // directly on the instance. |
- |
- function wrapMethod(name) { |
- var original = document[name]; |
- Document.prototype[name] = function() { |
- return wrap(original.apply(this.impl, arguments)); |
- }; |
- } |
- |
- [ |
- 'createComment', |
- 'createDocumentFragment', |
- 'createElement', |
- 'createElementNS', |
- 'createEvent', |
- 'createEventNS', |
- 'createRange', |
- 'createTextNode', |
- 'getElementById' |
- ].forEach(wrapMethod); |
- |
- var originalAdoptNode = document.adoptNode; |
- |
- function adoptNodeNoRemove(node, doc) { |
- originalAdoptNode.call(doc.impl, unwrap(node)); |
- adoptSubtree(node, doc); |
- } |
- |
- function adoptSubtree(node, doc) { |
- if (node.shadowRoot) |
- doc.adoptNode(node.shadowRoot); |
- if (node instanceof ShadowRoot) |
- adoptOlderShadowRoots(node, doc); |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- adoptSubtree(child, doc); |
- } |
- } |
- |
- function adoptOlderShadowRoots(shadowRoot, doc) { |
- var oldShadowRoot = shadowRoot.olderShadowRoot; |
- if (oldShadowRoot) |
- doc.adoptNode(oldShadowRoot); |
- } |
- |
- var originalGetSelection = document.getSelection; |
- |
- mixin(Document.prototype, { |
- adoptNode: function(node) { |
- if (node.parentNode) |
- node.parentNode.removeChild(node); |
- adoptNodeNoRemove(node, this); |
- return node; |
- }, |
- elementFromPoint: function(x, y) { |
- return elementFromPoint(this, this, x, y); |
- }, |
- importNode: function(node, deep) { |
- return cloneNode(node, deep, this.impl); |
- }, |
- getSelection: function() { |
- renderAllPending(); |
- return new Selection(originalGetSelection.call(unwrap(this))); |
- }, |
- getElementsByName: function(name) { |
- return SelectorsInterface.querySelectorAll.call(this, |
- '[name=' + JSON.stringify(String(name)) + ']'); |
- } |
- }); |
- |
- if (document.registerElement) { |
- var originalRegisterElement = document.registerElement; |
- Document.prototype.registerElement = function(tagName, object) { |
- var prototype, extendsOption; |
- if (object !== undefined) { |
- prototype = object.prototype; |
- extendsOption = object.extends; |
- } |
- |
- if (!prototype) |
- prototype = Object.create(HTMLElement.prototype); |
- |
- |
- // If we already used the object as a prototype for another custom |
- // element. |
- if (scope.nativePrototypeTable.get(prototype)) { |
- // TODO(arv): DOMException |
- throw new Error('NotSupportedError'); |
- } |
- |
- // Find first object on the prototype chain that already have a native |
- // prototype. Keep track of all the objects before that so we can create |
- // a similar structure for the native case. |
- var proto = Object.getPrototypeOf(prototype); |
- var nativePrototype; |
- var prototypes = []; |
- while (proto) { |
- nativePrototype = scope.nativePrototypeTable.get(proto); |
- if (nativePrototype) |
- break; |
- prototypes.push(proto); |
- proto = Object.getPrototypeOf(proto); |
- } |
- |
- if (!nativePrototype) { |
- // TODO(arv): DOMException |
- throw new Error('NotSupportedError'); |
- } |
- |
- // This works by creating a new prototype object that is empty, but has |
- // the native prototype as its proto. The original prototype object |
- // passed into register is used as the wrapper prototype. |
- |
- var newPrototype = Object.create(nativePrototype); |
- for (var i = prototypes.length - 1; i >= 0; i--) { |
- newPrototype = Object.create(newPrototype); |
- } |
- |
- // Add callbacks if present. |
- // Names are taken from: |
- // https://code.google.com/p/chromium/codesearch#chromium/src/third_party/WebKit/Source/bindings/v8/CustomElementConstructorBuilder.cpp&sq=package:chromium&type=cs&l=156 |
- // and not from the spec since the spec is out of date. |
- [ |
- 'createdCallback', |
- 'attachedCallback', |
- 'detachedCallback', |
- 'attributeChangedCallback', |
- ].forEach(function(name) { |
- var f = prototype[name]; |
- if (!f) |
- return; |
- newPrototype[name] = function() { |
- // if this element has been wrapped prior to registration, |
- // the wrapper is stale; in this case rewrap |
- if (!(wrap(this) instanceof CustomElementConstructor)) { |
- rewrap(this); |
- } |
- f.apply(wrap(this), arguments); |
- }; |
- }); |
- |
- var p = {prototype: newPrototype}; |
- if (extendsOption) |
- p.extends = extendsOption; |
- |
- function CustomElementConstructor(node) { |
- if (!node) { |
- if (extendsOption) { |
- return document.createElement(extendsOption, tagName); |
- } else { |
- return document.createElement(tagName); |
- } |
- } |
- this.impl = node; |
- } |
- CustomElementConstructor.prototype = prototype; |
- CustomElementConstructor.prototype.constructor = CustomElementConstructor; |
- |
- scope.constructorTable.set(newPrototype, CustomElementConstructor); |
- scope.nativePrototypeTable.set(prototype, newPrototype); |
- |
- // registration is synchronous so do it last |
- var nativeConstructor = originalRegisterElement.call(unwrap(this), |
- tagName, p); |
- return CustomElementConstructor; |
- }; |
- |
- forwardMethodsToWrapper([ |
- window.HTMLDocument || window.Document, // Gecko adds these to HTMLDocument |
- ], [ |
- 'registerElement', |
- ]); |
- } |
- |
- // We also override some of the methods on document.body and document.head |
- // for convenience. |
- forwardMethodsToWrapper([ |
- window.HTMLBodyElement, |
- window.HTMLDocument || window.Document, // Gecko adds these to HTMLDocument |
- window.HTMLHeadElement, |
- window.HTMLHtmlElement, |
- ], [ |
- 'appendChild', |
- 'compareDocumentPosition', |
- 'contains', |
- 'getElementsByClassName', |
- 'getElementsByTagName', |
- 'getElementsByTagNameNS', |
- 'insertBefore', |
- 'querySelector', |
- 'querySelectorAll', |
- 'removeChild', |
- 'replaceChild', |
- ].concat(matchesNames)); |
- |
- forwardMethodsToWrapper([ |
- window.HTMLDocument || window.Document, // Gecko adds these to HTMLDocument |
- ], [ |
- 'adoptNode', |
- 'importNode', |
- 'contains', |
- 'createComment', |
- 'createDocumentFragment', |
- 'createElement', |
- 'createElementNS', |
- 'createEvent', |
- 'createEventNS', |
- 'createRange', |
- 'createTextNode', |
- 'elementFromPoint', |
- 'getElementById', |
- 'getElementsByName', |
- 'getSelection', |
- ]); |
- |
- mixin(Document.prototype, GetElementsByInterface); |
- mixin(Document.prototype, ParentNodeInterface); |
- mixin(Document.prototype, SelectorsInterface); |
- |
- mixin(Document.prototype, { |
- get implementation() { |
- var implementation = implementationTable.get(this); |
- if (implementation) |
- return implementation; |
- implementation = |
- new DOMImplementation(unwrap(this).implementation); |
- implementationTable.set(this, implementation); |
- return implementation; |
- }, |
- |
- get defaultView() { |
- return wrap(unwrap(this).defaultView); |
- } |
- }); |
- |
- registerWrapper(window.Document, Document, |
- document.implementation.createHTMLDocument('')); |
- |
- // Both WebKit and Gecko uses HTMLDocument for document. HTML5/DOM only has |
- // one Document interface and IE implements the standard correctly. |
- if (window.HTMLDocument) |
- registerWrapper(window.HTMLDocument, Document); |
- |
- wrapEventTargetMethods([ |
- window.HTMLBodyElement, |
- window.HTMLDocument || window.Document, // Gecko adds these to HTMLDocument |
- window.HTMLHeadElement, |
- ]); |
- |
- function DOMImplementation(impl) { |
- this.impl = impl; |
- } |
- |
- function wrapImplMethod(constructor, name) { |
- var original = document.implementation[name]; |
- constructor.prototype[name] = function() { |
- return wrap(original.apply(this.impl, arguments)); |
- }; |
- } |
- |
- function forwardImplMethod(constructor, name) { |
- var original = document.implementation[name]; |
- constructor.prototype[name] = function() { |
- return original.apply(this.impl, arguments); |
- }; |
- } |
- |
- wrapImplMethod(DOMImplementation, 'createDocumentType'); |
- wrapImplMethod(DOMImplementation, 'createDocument'); |
- wrapImplMethod(DOMImplementation, 'createHTMLDocument'); |
- forwardImplMethod(DOMImplementation, 'hasFeature'); |
- |
- registerWrapper(window.DOMImplementation, DOMImplementation); |
- |
- forwardMethodsToWrapper([ |
- window.DOMImplementation, |
- ], [ |
- 'createDocumentType', |
- 'createDocument', |
- 'createHTMLDocument', |
- 'hasFeature', |
- ]); |
- |
- scope.adoptNodeNoRemove = adoptNodeNoRemove; |
- scope.wrappers.DOMImplementation = DOMImplementation; |
- scope.wrappers.Document = Document; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var EventTarget = scope.wrappers.EventTarget; |
- var Selection = scope.wrappers.Selection; |
- var mixin = scope.mixin; |
- var registerWrapper = scope.registerWrapper; |
- var renderAllPending = scope.renderAllPending; |
- var unwrap = scope.unwrap; |
- var unwrapIfNeeded = scope.unwrapIfNeeded; |
- var wrap = scope.wrap; |
- |
- var OriginalWindow = window.Window; |
- var originalGetComputedStyle = window.getComputedStyle; |
- var originalGetSelection = window.getSelection; |
- |
- function Window(impl) { |
- EventTarget.call(this, impl); |
- } |
- Window.prototype = Object.create(EventTarget.prototype); |
- |
- OriginalWindow.prototype.getComputedStyle = function(el, pseudo) { |
- return wrap(this || window).getComputedStyle(unwrapIfNeeded(el), pseudo); |
- }; |
- |
- OriginalWindow.prototype.getSelection = function() { |
- return wrap(this || window).getSelection(); |
- }; |
- |
- // Work around for https://bugzilla.mozilla.org/show_bug.cgi?id=943065 |
- delete window.getComputedStyle; |
- delete window.getSelection; |
- |
- ['addEventListener', 'removeEventListener', 'dispatchEvent'].forEach( |
- function(name) { |
- OriginalWindow.prototype[name] = function() { |
- var w = wrap(this || window); |
- return w[name].apply(w, arguments); |
- }; |
- |
- // Work around for https://bugzilla.mozilla.org/show_bug.cgi?id=943065 |
- delete window[name]; |
- }); |
- |
- mixin(Window.prototype, { |
- getComputedStyle: function(el, pseudo) { |
- renderAllPending(); |
- return originalGetComputedStyle.call(unwrap(this), unwrapIfNeeded(el), |
- pseudo); |
- }, |
- getSelection: function() { |
- renderAllPending(); |
- return new Selection(originalGetSelection.call(unwrap(this))); |
- }, |
- |
- get document() { |
- return wrap(unwrap(this).document); |
- } |
- }); |
- |
- registerWrapper(OriginalWindow, Window, window); |
- |
- scope.wrappers.Window = Window; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-/** |
- * Copyright 2014 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var unwrap = scope.unwrap; |
- |
- // DataTransfer (Clipboard in old Blink/WebKit) has a single method that |
- // requires wrapping. Since it is only a method we do not need a real wrapper, |
- // we can just override the method. |
- |
- var OriginalDataTransfer = window.DataTransfer || window.Clipboard; |
- var OriginalDataTransferSetDragImage = |
- OriginalDataTransfer.prototype.setDragImage; |
- |
- if (OriginalDataTransferSetDragImage) { |
- OriginalDataTransfer.prototype.setDragImage = function(image, x, y) { |
- OriginalDataTransferSetDragImage.call(this, unwrap(image), x, y); |
- }; |
- } |
- |
-})(window.ShadowDOMPolyfill); |
- |
-/** |
- * Copyright 2014 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var registerWrapper = scope.registerWrapper; |
- var unwrap = scope.unwrap; |
- |
- var OriginalFormData = window.FormData; |
- |
- function FormData(formElement) { |
- this.impl = new OriginalFormData(formElement && unwrap(formElement)); |
- } |
- |
- registerWrapper(OriginalFormData, FormData, new OriginalFormData()); |
- |
- scope.wrappers.FormData = FormData; |
- |
-})(window.ShadowDOMPolyfill); |
- |
-// Copyright 2013 The Polymer Authors. All rights reserved. |
-// Use of this source code is goverened by a BSD-style |
-// license that can be found in the LICENSE file. |
- |
-(function(scope) { |
- 'use strict'; |
- |
- var isWrapperFor = scope.isWrapperFor; |
- |
- // This is a list of the elements we currently override the global constructor |
- // for. |
- var elements = { |
- 'a': 'HTMLAnchorElement', |
- // Do not create an applet element by default since it shows a warning in |
- // IE. |
- // https://github.com/Polymer/polymer/issues/217 |
- // 'applet': 'HTMLAppletElement', |
- 'area': 'HTMLAreaElement', |
- 'audio': 'HTMLAudioElement', |
- 'base': 'HTMLBaseElement', |
- 'body': 'HTMLBodyElement', |
- 'br': 'HTMLBRElement', |
- 'button': 'HTMLButtonElement', |
- 'canvas': 'HTMLCanvasElement', |
- 'caption': 'HTMLTableCaptionElement', |
- 'col': 'HTMLTableColElement', |
- // 'command': 'HTMLCommandElement', // Not fully implemented in Gecko. |
- 'content': 'HTMLContentElement', |
- 'data': 'HTMLDataElement', |
- 'datalist': 'HTMLDataListElement', |
- 'del': 'HTMLModElement', |
- 'dir': 'HTMLDirectoryElement', |
- 'div': 'HTMLDivElement', |
- 'dl': 'HTMLDListElement', |
- 'embed': 'HTMLEmbedElement', |
- 'fieldset': 'HTMLFieldSetElement', |
- 'font': 'HTMLFontElement', |
- 'form': 'HTMLFormElement', |
- 'frame': 'HTMLFrameElement', |
- 'frameset': 'HTMLFrameSetElement', |
- 'h1': 'HTMLHeadingElement', |
- 'head': 'HTMLHeadElement', |
- 'hr': 'HTMLHRElement', |
- 'html': 'HTMLHtmlElement', |
- 'iframe': 'HTMLIFrameElement', |
- 'img': 'HTMLImageElement', |
- 'input': 'HTMLInputElement', |
- 'keygen': 'HTMLKeygenElement', |
- 'label': 'HTMLLabelElement', |
- 'legend': 'HTMLLegendElement', |
- 'li': 'HTMLLIElement', |
- 'link': 'HTMLLinkElement', |
- 'map': 'HTMLMapElement', |
- 'marquee': 'HTMLMarqueeElement', |
- 'menu': 'HTMLMenuElement', |
- 'menuitem': 'HTMLMenuItemElement', |
- 'meta': 'HTMLMetaElement', |
- 'meter': 'HTMLMeterElement', |
- 'object': 'HTMLObjectElement', |
- 'ol': 'HTMLOListElement', |
- 'optgroup': 'HTMLOptGroupElement', |
- 'option': 'HTMLOptionElement', |
- 'output': 'HTMLOutputElement', |
- 'p': 'HTMLParagraphElement', |
- 'param': 'HTMLParamElement', |
- 'pre': 'HTMLPreElement', |
- 'progress': 'HTMLProgressElement', |
- 'q': 'HTMLQuoteElement', |
- 'script': 'HTMLScriptElement', |
- 'select': 'HTMLSelectElement', |
- 'shadow': 'HTMLShadowElement', |
- 'source': 'HTMLSourceElement', |
- 'span': 'HTMLSpanElement', |
- 'style': 'HTMLStyleElement', |
- 'table': 'HTMLTableElement', |
- 'tbody': 'HTMLTableSectionElement', |
- // WebKit and Moz are wrong: |
- // https://bugs.webkit.org/show_bug.cgi?id=111469 |
- // https://bugzilla.mozilla.org/show_bug.cgi?id=848096 |
- // 'td': 'HTMLTableCellElement', |
- 'template': 'HTMLTemplateElement', |
- 'textarea': 'HTMLTextAreaElement', |
- 'thead': 'HTMLTableSectionElement', |
- 'time': 'HTMLTimeElement', |
- 'title': 'HTMLTitleElement', |
- 'tr': 'HTMLTableRowElement', |
- 'track': 'HTMLTrackElement', |
- 'ul': 'HTMLUListElement', |
- 'video': 'HTMLVideoElement', |
- }; |
- |
- function overrideConstructor(tagName) { |
- var nativeConstructorName = elements[tagName]; |
- var nativeConstructor = window[nativeConstructorName]; |
- if (!nativeConstructor) |
- return; |
- var element = document.createElement(tagName); |
- var wrapperConstructor = element.constructor; |
- window[nativeConstructorName] = wrapperConstructor; |
- } |
- |
- Object.keys(elements).forEach(overrideConstructor); |
- |
- Object.getOwnPropertyNames(scope.wrappers).forEach(function(name) { |
- window[name] = scope.wrappers[name] |
- }); |
- |
-})(window.ShadowDOMPolyfill); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- |
- // convenient global |
- window.wrap = ShadowDOMPolyfill.wrapIfNeeded; |
- window.unwrap = ShadowDOMPolyfill.unwrapIfNeeded; |
- |
- // users may want to customize other types |
- // TODO(sjmiles): 'button' is now supported by ShadowDOMPolyfill, but |
- // I've left this code here in case we need to temporarily patch another |
- // type |
- /* |
- (function() { |
- var elts = {HTMLButtonElement: 'button'}; |
- for (var c in elts) { |
- window[c] = function() { throw 'Patched Constructor'; }; |
- window[c].prototype = Object.getPrototypeOf( |
- document.createElement(elts[c])); |
- } |
- })(); |
- */ |
- |
- // patch in prefixed name |
- Object.defineProperty(Element.prototype, 'webkitShadowRoot', |
- Object.getOwnPropertyDescriptor(Element.prototype, 'shadowRoot')); |
- |
- var originalCreateShadowRoot = Element.prototype.createShadowRoot; |
- Element.prototype.createShadowRoot = function() { |
- var root = originalCreateShadowRoot.call(this); |
- CustomElements.watchShadow(this); |
- return root; |
- }; |
- |
- Element.prototype.webkitCreateShadowRoot = Element.prototype.createShadowRoot; |
- |
- function queryShadow(node, selector) { |
- var m, el = node.firstElementChild; |
- var shadows, sr, i; |
- shadows = []; |
- sr = node.shadowRoot; |
- while(sr) { |
- shadows.push(sr); |
- sr = sr.olderShadowRoot; |
- } |
- for(i = shadows.length - 1; i >= 0; i--) { |
- m = shadows[i].querySelector(selector); |
- if (m) { |
- return m; |
- } |
- } |
- while(el) { |
- m = queryShadow(el, selector); |
- if (m) { |
- return m; |
- } |
- el = el.nextElementSibling; |
- } |
- return null; |
- } |
- |
- function queryAllShadows(node, selector, results) { |
- var el = node.firstElementChild; |
- var temp, sr, shadows, i, j; |
- shadows = []; |
- sr = node.shadowRoot; |
- while(sr) { |
- shadows.push(sr); |
- sr = sr.olderShadowRoot; |
- } |
- for (i = shadows.length - 1; i >= 0; i--) { |
- temp = shadows[i].querySelectorAll(selector); |
- for(j = 0; j < temp.length; j++) { |
- results.push(temp[j]); |
- } |
- } |
- while (el) { |
- queryAllShadows(el, selector, results); |
- el = el.nextElementSibling; |
- } |
- return results; |
- } |
- |
- scope.queryAllShadows = function(node, selector, all) { |
- if (all) { |
- return queryAllShadows(node, selector, []); |
- } else { |
- return queryShadow(node, selector); |
- } |
- }; |
-})(window.Platform); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-/* |
- This is a limited shim for ShadowDOM css styling. |
- https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#styles |
- |
- The intention here is to support only the styling features which can be |
- relatively simply implemented. The goal is to allow users to avoid the |
- most obvious pitfalls and do so without compromising performance significantly. |
- For ShadowDOM styling that's not covered here, a set of best practices |
- can be provided that should allow users to accomplish more complex styling. |
- |
- The following is a list of specific ShadowDOM styling features and a brief |
- discussion of the approach used to shim. |
- |
- Shimmed features: |
- |
- * :host, :host-context: ShadowDOM allows styling of the shadowRoot's host |
- element using the :host rule. To shim this feature, the :host styles are |
- reformatted and prefixed with a given scope name and promoted to a |
- document level stylesheet. |
- For example, given a scope name of .foo, a rule like this: |
- |
- :host { |
- background: red; |
- } |
- } |
- |
- becomes: |
- |
- .foo { |
- background: red; |
- } |
- |
- * encapsultion: Styles defined within ShadowDOM, apply only to |
- dom inside the ShadowDOM. Polymer uses one of two techniques to imlement |
- this feature. |
- |
- By default, rules are prefixed with the host element tag name |
- as a descendant selector. This ensures styling does not leak out of the 'top' |
- of the element's ShadowDOM. For example, |
- |
- div { |
- font-weight: bold; |
- } |
- |
- becomes: |
- |
- x-foo div { |
- font-weight: bold; |
- } |
- |
- becomes: |
- |
- |
- Alternatively, if Platform.ShadowCSS.strictStyling is set to true then |
- selectors are scoped by adding an attribute selector suffix to each |
- simple selector that contains the host element tag name. Each element |
- in the element's ShadowDOM template is also given the scope attribute. |
- Thus, these rules match only elements that have the scope attribute. |
- For example, given a scope name of x-foo, a rule like this: |
- |
- div { |
- font-weight: bold; |
- } |
- |
- becomes: |
- |
- div[x-foo] { |
- font-weight: bold; |
- } |
- |
- Note that elements that are dynamically added to a scope must have the scope |
- selector added to them manually. |
- |
- * upper/lower bound encapsulation: Styles which are defined outside a |
- shadowRoot should not cross the ShadowDOM boundary and should not apply |
- inside a shadowRoot. |
- |
- This styling behavior is not emulated. Some possible ways to do this that |
- were rejected due to complexity and/or performance concerns include: (1) reset |
- every possible property for every possible selector for a given scope name; |
- (2) re-implement css in javascript. |
- |
- As an alternative, users should make sure to use selectors |
- specific to the scope in which they are working. |
- |
- * ::distributed: This behavior is not emulated. It's often not necessary |
- to style the contents of a specific insertion point and instead, descendants |
- of the host element can be styled selectively. Users can also create an |
- extra node around an insertion point and style that node's contents |
- via descendent selectors. For example, with a shadowRoot like this: |
- |
- <style> |
- ::content(div) { |
- background: red; |
- } |
- </style> |
- <content></content> |
- |
- could become: |
- |
- <style> |
- / *@polyfill .content-container div * / |
- ::content(div) { |
- background: red; |
- } |
- </style> |
- <div class="content-container"> |
- <content></content> |
- </div> |
- |
- Note the use of @polyfill in the comment above a ShadowDOM specific style |
- declaration. This is a directive to the styling shim to use the selector |
- in comments in lieu of the next selector when running under polyfill. |
-*/ |
-(function(scope) { |
- |
-var ShadowCSS = { |
- strictStyling: false, |
- registry: {}, |
- // Shim styles for a given root associated with a name and extendsName |
- // 1. cache root styles by name |
- // 2. optionally tag root nodes with scope name |
- // 3. shim polyfill directives /* @polyfill */ and /* @polyfill-rule */ |
- // 4. shim :host and scoping |
- shimStyling: function(root, name, extendsName) { |
- var scopeStyles = this.prepareRoot(root, name, extendsName); |
- var typeExtension = this.isTypeExtension(extendsName); |
- var scopeSelector = this.makeScopeSelector(name, typeExtension); |
- // use caching to make working with styles nodes easier and to facilitate |
- // lookup of extendee |
- var cssText = stylesToCssText(scopeStyles, true); |
- cssText = this.scopeCssText(cssText, scopeSelector); |
- // cache shimmed css on root for user extensibility |
- if (root) { |
- root.shimmedStyle = cssText; |
- } |
- // add style to document |
- this.addCssToDocument(cssText, name); |
- }, |
- /* |
- * Shim a style element with the given selector. Returns cssText that can |
- * be included in the document via Platform.ShadowCSS.addCssToDocument(css). |
- */ |
- shimStyle: function(style, selector) { |
- return this.shimCssText(style.textContent, selector); |
- }, |
- /* |
- * Shim some cssText with the given selector. Returns cssText that can |
- * be included in the document via Platform.ShadowCSS.addCssToDocument(css). |
- */ |
- shimCssText: function(cssText, selector) { |
- cssText = this.insertDirectives(cssText); |
- return this.scopeCssText(cssText, selector); |
- }, |
- makeScopeSelector: function(name, typeExtension) { |
- if (name) { |
- return typeExtension ? '[is=' + name + ']' : name; |
- } |
- return ''; |
- }, |
- isTypeExtension: function(extendsName) { |
- return extendsName && extendsName.indexOf('-') < 0; |
- }, |
- prepareRoot: function(root, name, extendsName) { |
- var def = this.registerRoot(root, name, extendsName); |
- this.replaceTextInStyles(def.rootStyles, this.insertDirectives); |
- // remove existing style elements |
- this.removeStyles(root, def.rootStyles); |
- // apply strict attr |
- if (this.strictStyling) { |
- this.applyScopeToContent(root, name); |
- } |
- return def.scopeStyles; |
- }, |
- removeStyles: function(root, styles) { |
- for (var i=0, l=styles.length, s; (i<l) && (s=styles[i]); i++) { |
- s.parentNode.removeChild(s); |
- } |
- }, |
- registerRoot: function(root, name, extendsName) { |
- var def = this.registry[name] = { |
- root: root, |
- name: name, |
- extendsName: extendsName |
- } |
- var styles = this.findStyles(root); |
- def.rootStyles = styles; |
- def.scopeStyles = def.rootStyles; |
- var extendee = this.registry[def.extendsName]; |
- if (extendee) { |
- def.scopeStyles = extendee.scopeStyles.concat(def.scopeStyles); |
- } |
- return def; |
- }, |
- findStyles: function(root) { |
- if (!root) { |
- return []; |
- } |
- var styles = root.querySelectorAll('style'); |
- return Array.prototype.filter.call(styles, function(s) { |
- return !s.hasAttribute(NO_SHIM_ATTRIBUTE); |
- }); |
- }, |
- applyScopeToContent: function(root, name) { |
- if (root) { |
- // add the name attribute to each node in root. |
- Array.prototype.forEach.call(root.querySelectorAll('*'), |
- function(node) { |
- node.setAttribute(name, ''); |
- }); |
- // and template contents too |
- Array.prototype.forEach.call(root.querySelectorAll('template'), |
- function(template) { |
- this.applyScopeToContent(template.content, name); |
- }, |
- this); |
- } |
- }, |
- insertDirectives: function(cssText) { |
- cssText = this.insertPolyfillDirectivesInCssText(cssText); |
- return this.insertPolyfillRulesInCssText(cssText); |
- }, |
- /* |
- * Process styles to convert native ShadowDOM rules that will trip |
- * up the css parser; we rely on decorating the stylesheet with inert rules. |
- * |
- * For example, we convert this rule: |
- * |
- * polyfill-next-selector { content: ':host menu-item'; } |
- * ::content menu-item { |
- * |
- * to this: |
- * |
- * scopeName menu-item { |
- * |
- **/ |
- insertPolyfillDirectivesInCssText: function(cssText) { |
- // TODO(sorvell): remove either content or comment |
- cssText = cssText.replace(cssCommentNextSelectorRe, function(match, p1) { |
- // remove end comment delimiter and add block start |
- return p1.slice(0, -2) + '{'; |
- }); |
- return cssText.replace(cssContentNextSelectorRe, function(match, p1) { |
- return p1 + ' {'; |
- }); |
- }, |
- /* |
- * Process styles to add rules which will only apply under the polyfill |
- * |
- * For example, we convert this rule: |
- * |
- * polyfill-rule { |
- * content: ':host menu-item'; |
- * ... |
- * } |
- * |
- * to this: |
- * |
- * scopeName menu-item {...} |
- * |
- **/ |
- insertPolyfillRulesInCssText: function(cssText) { |
- // TODO(sorvell): remove either content or comment |
- cssText = cssText.replace(cssCommentRuleRe, function(match, p1) { |
- // remove end comment delimiter |
- return p1.slice(0, -1); |
- }); |
- return cssText.replace(cssContentRuleRe, function(match, p1, p2, p3) { |
- var rule = match.replace(p1, '').replace(p2, ''); |
- return p3 + rule; |
- }); |
- }, |
- /* Ensure styles are scoped. Pseudo-scoping takes a rule like: |
- * |
- * .foo {... } |
- * |
- * and converts this to |
- * |
- * scopeName .foo { ... } |
- */ |
- scopeCssText: function(cssText, scopeSelector) { |
- var unscoped = this.extractUnscopedRulesFromCssText(cssText); |
- cssText = this.insertPolyfillHostInCssText(cssText); |
- cssText = this.convertColonHost(cssText); |
- cssText = this.convertColonHostContext(cssText); |
- cssText = this.convertShadowDOMSelectors(cssText); |
- if (scopeSelector) { |
- var self = this, cssText; |
- withCssRules(cssText, function(rules) { |
- cssText = self.scopeRules(rules, scopeSelector); |
- }); |
- |
- } |
- cssText = cssText + '\n' + unscoped; |
- return cssText.trim(); |
- }, |
- /* |
- * Process styles to add rules which will only apply under the polyfill |
- * and do not process via CSSOM. (CSSOM is destructive to rules on rare |
- * occasions, e.g. -webkit-calc on Safari.) |
- * For example, we convert this rule: |
- * |
- * (comment start) @polyfill-unscoped-rule menu-item { |
- * ... } (comment end) |
- * |
- * to this: |
- * |
- * menu-item {...} |
- * |
- **/ |
- extractUnscopedRulesFromCssText: function(cssText) { |
- // TODO(sorvell): remove either content or comment |
- var r = '', m; |
- while (m = cssCommentUnscopedRuleRe.exec(cssText)) { |
- r += m[1].slice(0, -1) + '\n\n'; |
- } |
- while (m = cssContentUnscopedRuleRe.exec(cssText)) { |
- r += m[0].replace(m[2], '').replace(m[1], m[3]) + '\n\n'; |
- } |
- return r; |
- }, |
- /* |
- * convert a rule like :host(.foo) > .bar { } |
- * |
- * to |
- * |
- * scopeName.foo > .bar |
- */ |
- convertColonHost: function(cssText) { |
- return this.convertColonRule(cssText, cssColonHostRe, |
- this.colonHostPartReplacer); |
- }, |
- /* |
- * convert a rule like :host-context(.foo) > .bar { } |
- * |
- * to |
- * |
- * scopeName.foo > .bar, .foo scopeName > .bar { } |
- * |
- * and |
- * |
- * :host-context(.foo:host) .bar { ... } |
- * |
- * to |
- * |
- * scopeName.foo .bar { ... } |
- */ |
- convertColonHostContext: function(cssText) { |
- return this.convertColonRule(cssText, cssColonHostContextRe, |
- this.colonHostContextPartReplacer); |
- }, |
- convertColonRule: function(cssText, regExp, partReplacer) { |
- // p1 = :host, p2 = contents of (), p3 rest of rule |
- return cssText.replace(regExp, function(m, p1, p2, p3) { |
- p1 = polyfillHostNoCombinator; |
- if (p2) { |
- var parts = p2.split(','), r = []; |
- for (var i=0, l=parts.length, p; (i<l) && (p=parts[i]); i++) { |
- p = p.trim(); |
- r.push(partReplacer(p1, p, p3)); |
- } |
- return r.join(','); |
- } else { |
- return p1 + p3; |
- } |
- }); |
- }, |
- colonHostContextPartReplacer: function(host, part, suffix) { |
- if (part.match(polyfillHost)) { |
- return this.colonHostPartReplacer(host, part, suffix); |
- } else { |
- return host + part + suffix + ', ' + part + ' ' + host + suffix; |
- } |
- }, |
- colonHostPartReplacer: function(host, part, suffix) { |
- return host + part.replace(polyfillHost, '') + suffix; |
- }, |
- /* |
- * Convert combinators like ::shadow and pseudo-elements like ::content |
- * by replacing with space. |
- */ |
- convertShadowDOMSelectors: function(cssText) { |
- for (var i=0; i < shadowDOMSelectorsRe.length; i++) { |
- cssText = cssText.replace(shadowDOMSelectorsRe[i], ' '); |
- } |
- return cssText; |
- }, |
- // change a selector like 'div' to 'name div' |
- scopeRules: function(cssRules, scopeSelector) { |
- var cssText = ''; |
- if (cssRules) { |
- Array.prototype.forEach.call(cssRules, function(rule) { |
- if (rule.selectorText && (rule.style && rule.style.cssText !== undefined)) { |
- cssText += this.scopeSelector(rule.selectorText, scopeSelector, |
- this.strictStyling) + ' {\n\t'; |
- cssText += this.propertiesFromRule(rule) + '\n}\n\n'; |
- } else if (rule.type === CSSRule.MEDIA_RULE) { |
- cssText += '@media ' + rule.media.mediaText + ' {\n'; |
- cssText += this.scopeRules(rule.cssRules, scopeSelector); |
- cssText += '\n}\n\n'; |
- } else { |
- // TODO(sjmiles): KEYFRAMES_RULE in IE11 throws when we query cssText |
- // 'cssText' in rule returns true, but rule.cssText throws anyway |
- // We can test the rule type, e.g. |
- // else if (rule.type !== CSSRule.KEYFRAMES_RULE && rule.cssText) { |
- // but this will prevent cssText propagation in other browsers which |
- // support it. |
- // KEYFRAMES_RULE has a CSSRuleSet, so the text can probably be reconstructed |
- // from that collection; this would be a proper fix. |
- // For now, I'm trapping the exception so IE11 is unblocked in other areas. |
- try { |
- if (rule.cssText) { |
- cssText += rule.cssText + '\n\n'; |
- } |
- } catch(x) { |
- // squelch |
- } |
- } |
- }, this); |
- } |
- return cssText; |
- }, |
- scopeSelector: function(selector, scopeSelector, strict) { |
- var r = [], parts = selector.split(','); |
- parts.forEach(function(p) { |
- p = p.trim(); |
- if (this.selectorNeedsScoping(p, scopeSelector)) { |
- p = (strict && !p.match(polyfillHostNoCombinator)) ? |
- this.applyStrictSelectorScope(p, scopeSelector) : |
- this.applySelectorScope(p, scopeSelector); |
- } |
- r.push(p); |
- }, this); |
- return r.join(', '); |
- }, |
- selectorNeedsScoping: function(selector, scopeSelector) { |
- if (Array.isArray(scopeSelector)) { |
- return true; |
- } |
- var re = this.makeScopeMatcher(scopeSelector); |
- return !selector.match(re); |
- }, |
- makeScopeMatcher: function(scopeSelector) { |
- scopeSelector = scopeSelector.replace(/\[/g, '\\[').replace(/\[/g, '\\]'); |
- return new RegExp('^(' + scopeSelector + ')' + selectorReSuffix, 'm'); |
- }, |
- applySelectorScope: function(selector, selectorScope) { |
- return Array.isArray(selectorScope) ? |
- this.applySelectorScopeList(selector, selectorScope) : |
- this.applySimpleSelectorScope(selector, selectorScope); |
- }, |
- // apply an array of selectors |
- applySelectorScopeList: function(selector, scopeSelectorList) { |
- var r = []; |
- for (var i=0, s; (s=scopeSelectorList[i]); i++) { |
- r.push(this.applySimpleSelectorScope(selector, s)); |
- } |
- return r.join(', '); |
- }, |
- // scope via name and [is=name] |
- applySimpleSelectorScope: function(selector, scopeSelector) { |
- if (selector.match(polyfillHostRe)) { |
- selector = selector.replace(polyfillHostNoCombinator, scopeSelector); |
- return selector.replace(polyfillHostRe, scopeSelector + ' '); |
- } else { |
- return scopeSelector + ' ' + selector; |
- } |
- }, |
- // return a selector with [name] suffix on each simple selector |
- // e.g. .foo.bar > .zot becomes .foo[name].bar[name] > .zot[name] |
- applyStrictSelectorScope: function(selector, scopeSelector) { |
- scopeSelector = scopeSelector.replace(/\[is=([^\]]*)\]/g, '$1'); |
- var splits = [' ', '>', '+', '~'], |
- scoped = selector, |
- attrName = '[' + scopeSelector + ']'; |
- splits.forEach(function(sep) { |
- var parts = scoped.split(sep); |
- scoped = parts.map(function(p) { |
- // remove :host since it should be unnecessary |
- var t = p.trim().replace(polyfillHostRe, ''); |
- if (t && (splits.indexOf(t) < 0) && (t.indexOf(attrName) < 0)) { |
- p = t.replace(/([^:]*)(:*)(.*)/, '$1' + attrName + '$2$3') |
- } |
- return p; |
- }).join(sep); |
- }); |
- return scoped; |
- }, |
- insertPolyfillHostInCssText: function(selector) { |
- return selector.replace(colonHostContextRe, polyfillHostContext).replace( |
- colonHostRe, polyfillHost); |
- }, |
- propertiesFromRule: function(rule) { |
- var cssText = rule.style.cssText; |
- // TODO(sorvell): Safari cssom incorrectly removes quotes from the content |
- // property. (https://bugs.webkit.org/show_bug.cgi?id=118045) |
- // don't replace attr rules |
- if (rule.style.content && !rule.style.content.match(/['"]+|attr/)) { |
- cssText = cssText.replace(/content:[^;]*;/g, 'content: \'' + |
- rule.style.content + '\';'); |
- } |
- // TODO(sorvell): we can workaround this issue here, but we need a list |
- // of troublesome properties to fix https://github.com/Polymer/platform/issues/53 |
- // |
- // inherit rules can be omitted from cssText |
- // TODO(sorvell): remove when Blink bug is fixed: |
- // https://code.google.com/p/chromium/issues/detail?id=358273 |
- var style = rule.style; |
- for (var i in style) { |
- if (style[i] === 'initial') { |
- cssText += i + ': initial; '; |
- } |
- } |
- return cssText; |
- }, |
- replaceTextInStyles: function(styles, action) { |
- if (styles && action) { |
- if (!(styles instanceof Array)) { |
- styles = [styles]; |
- } |
- Array.prototype.forEach.call(styles, function(s) { |
- s.textContent = action.call(this, s.textContent); |
- }, this); |
- } |
- }, |
- addCssToDocument: function(cssText, name) { |
- if (cssText.match('@import')) { |
- addOwnSheet(cssText, name); |
- } else { |
- addCssToDocument(cssText); |
- } |
- } |
-}; |
- |
-var selectorRe = /([^{]*)({[\s\S]*?})/gim, |
- cssCommentRe = /\/\*[^*]*\*+([^/*][^*]*\*+)*\//gim, |
- // TODO(sorvell): remove either content or comment |
- cssCommentNextSelectorRe = /\/\*\s*@polyfill ([^*]*\*+([^/*][^*]*\*+)*\/)([^{]*?){/gim, |
- cssContentNextSelectorRe = /polyfill-next-selector[^}]*content\:[\s]*['|"]([^'"]*)['|"][^}]*}([^{]*?){/gim, |
- // TODO(sorvell): remove either content or comment |
- cssCommentRuleRe = /\/\*\s@polyfill-rule([^*]*\*+([^/*][^*]*\*+)*)\//gim, |
- cssContentRuleRe = /(polyfill-rule)[^}]*(content\:[\s]*['|"]([^'"]*)['|"][^;]*;)[^}]*}/gim, |
- // TODO(sorvell): remove either content or comment |
- cssCommentUnscopedRuleRe = /\/\*\s@polyfill-unscoped-rule([^*]*\*+([^/*][^*]*\*+)*)\//gim, |
- cssContentUnscopedRuleRe = /(polyfill-unscoped-rule)[^}]*(content\:[\s]*['|"]([^'"]*)['|"][^;]*;)[^}]*}/gim, |
- cssPseudoRe = /::(x-[^\s{,(]*)/gim, |
- cssPartRe = /::part\(([^)]*)\)/gim, |
- // note: :host pre-processed to -shadowcsshost. |
- polyfillHost = '-shadowcsshost', |
- // note: :host-context pre-processed to -shadowcsshostcontext. |
- polyfillHostContext = '-shadowcsscontext', |
- parenSuffix = ')(?:\\((' + |
- '(?:\\([^)(]*\\)|[^)(]*)+?' + |
- ')\\))?([^,{]*)'; |
- cssColonHostRe = new RegExp('(' + polyfillHost + parenSuffix, 'gim'), |
- cssColonHostContextRe = new RegExp('(' + polyfillHostContext + parenSuffix, 'gim'), |
- selectorReSuffix = '([>\\s~+\[.,{:][\\s\\S]*)?$', |
- colonHostRe = /\:host/gim, |
- colonHostContextRe = /\:host-context/gim, |
- /* host name without combinator */ |
- polyfillHostNoCombinator = polyfillHost + '-no-combinator', |
- polyfillHostRe = new RegExp(polyfillHost, 'gim'), |
- polyfillHostContextRe = new RegExp(polyfillHostContext, 'gim'), |
- shadowDOMSelectorsRe = [ |
- /\^\^/g, |
- /\^/g, |
- /\/shadow\//g, |
- /\/shadow-deep\//g, |
- /::shadow/g, |
- /\/deep\//g, |
- /::content/g |
- ]; |
- |
-function stylesToCssText(styles, preserveComments) { |
- var cssText = ''; |
- Array.prototype.forEach.call(styles, function(s) { |
- cssText += s.textContent + '\n\n'; |
- }); |
- // strip comments for easier processing |
- if (!preserveComments) { |
- cssText = cssText.replace(cssCommentRe, ''); |
- } |
- return cssText; |
-} |
- |
-function cssTextToStyle(cssText) { |
- var style = document.createElement('style'); |
- style.textContent = cssText; |
- return style; |
-} |
- |
-function cssToRules(cssText) { |
- var style = cssTextToStyle(cssText); |
- document.head.appendChild(style); |
- var rules = []; |
- if (style.sheet) { |
- // TODO(sorvell): Firefox throws when accessing the rules of a stylesheet |
- // with an @import |
- // https://bugzilla.mozilla.org/show_bug.cgi?id=625013 |
- try { |
- rules = style.sheet.cssRules; |
- } catch(e) { |
- // |
- } |
- } else { |
- console.warn('sheet not found', style); |
- } |
- style.parentNode.removeChild(style); |
- return rules; |
-} |
- |
-var frame = document.createElement('iframe'); |
-frame.style.display = 'none'; |
- |
-function initFrame() { |
- frame.initialized = true; |
- document.body.appendChild(frame); |
- var doc = frame.contentDocument; |
- var base = doc.createElement('base'); |
- base.href = document.baseURI; |
- doc.head.appendChild(base); |
-} |
- |
-function inFrame(fn) { |
- if (!frame.initialized) { |
- initFrame(); |
- } |
- document.body.appendChild(frame); |
- fn(frame.contentDocument); |
- document.body.removeChild(frame); |
-} |
- |
-// TODO(sorvell): use an iframe if the cssText contains an @import to workaround |
-// https://code.google.com/p/chromium/issues/detail?id=345114 |
-var isChrome = navigator.userAgent.match('Chrome'); |
-function withCssRules(cssText, callback) { |
- if (!callback) { |
- return; |
- } |
- var rules; |
- if (cssText.match('@import') && isChrome) { |
- var style = cssTextToStyle(cssText); |
- inFrame(function(doc) { |
- doc.head.appendChild(style.impl); |
- rules = style.sheet.cssRules; |
- callback(rules); |
- }); |
- } else { |
- rules = cssToRules(cssText); |
- callback(rules); |
- } |
-} |
- |
-function rulesToCss(cssRules) { |
- for (var i=0, css=[]; i < cssRules.length; i++) { |
- css.push(cssRules[i].cssText); |
- } |
- return css.join('\n\n'); |
-} |
- |
-function addCssToDocument(cssText) { |
- if (cssText) { |
- getSheet().appendChild(document.createTextNode(cssText)); |
- } |
-} |
- |
-function addOwnSheet(cssText, name) { |
- var style = cssTextToStyle(cssText); |
- style.setAttribute(name, ''); |
- style.setAttribute(SHIMMED_ATTRIBUTE, ''); |
- document.head.appendChild(style); |
-} |
- |
-var SHIM_ATTRIBUTE = 'shim-shadowdom'; |
-var SHIMMED_ATTRIBUTE = 'shim-shadowdom-css'; |
-var NO_SHIM_ATTRIBUTE = 'no-shim'; |
- |
-var sheet; |
-function getSheet() { |
- if (!sheet) { |
- sheet = document.createElement("style"); |
- sheet.setAttribute(SHIMMED_ATTRIBUTE, ''); |
- sheet[SHIMMED_ATTRIBUTE] = true; |
- } |
- return sheet; |
-} |
- |
-// add polyfill stylesheet to document |
-if (window.ShadowDOMPolyfill) { |
- addCssToDocument('style { display: none !important; }\n'); |
- var doc = wrap(document); |
- var head = doc.querySelector('head'); |
- head.insertBefore(getSheet(), head.childNodes[0]); |
- |
- // TODO(sorvell): monkey-patching HTMLImports is abusive; |
- // consider a better solution. |
- document.addEventListener('DOMContentLoaded', function() { |
- var urlResolver = scope.urlResolver; |
- |
- if (window.HTMLImports && !HTMLImports.useNative) { |
- var SHIM_SHEET_SELECTOR = 'link[rel=stylesheet]' + |
- '[' + SHIM_ATTRIBUTE + ']'; |
- var SHIM_STYLE_SELECTOR = 'style[' + SHIM_ATTRIBUTE + ']'; |
- HTMLImports.importer.documentPreloadSelectors += ',' + SHIM_SHEET_SELECTOR; |
- HTMLImports.importer.importsPreloadSelectors += ',' + SHIM_SHEET_SELECTOR; |
- |
- HTMLImports.parser.documentSelectors = [ |
- HTMLImports.parser.documentSelectors, |
- SHIM_SHEET_SELECTOR, |
- SHIM_STYLE_SELECTOR |
- ].join(','); |
- |
- var originalParseGeneric = HTMLImports.parser.parseGeneric; |
- |
- HTMLImports.parser.parseGeneric = function(elt) { |
- if (elt[SHIMMED_ATTRIBUTE]) { |
- return; |
- } |
- var style = elt.__importElement || elt; |
- if (!style.hasAttribute(SHIM_ATTRIBUTE)) { |
- originalParseGeneric.call(this, elt); |
- return; |
- } |
- if (elt.__resource) { |
- style = elt.ownerDocument.createElement('style'); |
- style.textContent = urlResolver.resolveCssText( |
- elt.__resource, elt.href); |
- } else { |
- urlResolver.resolveStyle(style); |
- } |
- style.textContent = ShadowCSS.shimStyle(style); |
- style.removeAttribute(SHIM_ATTRIBUTE, ''); |
- style.setAttribute(SHIMMED_ATTRIBUTE, ''); |
- style[SHIMMED_ATTRIBUTE] = true; |
- // place in document |
- if (style.parentNode !== head) { |
- // replace links in head |
- if (elt.parentNode === head) { |
- head.replaceChild(style, elt); |
- } else { |
- head.appendChild(style); |
- } |
- } |
- style.__importParsed = true; |
- this.markParsingComplete(elt); |
- this.parseNext(); |
- } |
- |
- var hasResource = HTMLImports.parser.hasResource; |
- HTMLImports.parser.hasResource = function(node) { |
- if (node.localName === 'link' && node.rel === 'stylesheet' && |
- node.hasAttribute(SHIM_ATTRIBUTE)) { |
- return (node.__resource); |
- } else { |
- return hasResource.call(this, node); |
- } |
- } |
- |
- } |
- }); |
-} |
- |
-// exports |
-scope.ShadowCSS = ShadowCSS; |
- |
-})(window.Platform); |
- |
-} else { |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- |
- // so we can call wrap/unwrap without testing for ShadowDOMPolyfill |
- window.wrap = window.unwrap = function(n){ |
- return n; |
- } |
- |
- addEventListener('DOMContentLoaded', function() { |
- if (CustomElements.useNative === false) { |
- var originalCreateShadowRoot = Element.prototype.createShadowRoot; |
- Element.prototype.createShadowRoot = function() { |
- var root = originalCreateShadowRoot.call(this); |
- CustomElements.watchShadow(this); |
- return root; |
- }; |
- } |
- }); |
- |
- Platform.templateContent = function(inTemplate) { |
- // if MDV exists, it may need to boostrap this template to reveal content |
- if (window.HTMLTemplateElement && HTMLTemplateElement.bootstrap) { |
- HTMLTemplateElement.bootstrap(inTemplate); |
- } |
- // fallback when there is no Shadow DOM polyfill, no MDV polyfill, and no |
- // native template support |
- if (!inTemplate.content && !inTemplate._content) { |
- var frag = document.createDocumentFragment(); |
- while (inTemplate.firstChild) { |
- frag.appendChild(inTemplate.firstChild); |
- } |
- inTemplate._content = frag; |
- } |
- return inTemplate.content || inTemplate._content; |
- }; |
- |
-})(window.Platform); |
- |
-} |
-/* Any copyright is dedicated to the Public Domain. |
- * http://creativecommons.org/publicdomain/zero/1.0/ */ |
- |
-(function(scope) { |
- 'use strict'; |
- |
- // feature detect for URL constructor |
- var hasWorkingUrl = false; |
- if (!scope.forceJURL) { |
- try { |
- var u = new URL('b', 'http://a'); |
- hasWorkingUrl = u.href === 'http://a/b'; |
- } catch(e) {} |
- } |
- |
- if (hasWorkingUrl) |
- return; |
- |
- var relative = Object.create(null); |
- relative['ftp'] = 21; |
- relative['file'] = 0; |
- relative['gopher'] = 70; |
- relative['http'] = 80; |
- relative['https'] = 443; |
- relative['ws'] = 80; |
- relative['wss'] = 443; |
- |
- var relativePathDotMapping = Object.create(null); |
- relativePathDotMapping['%2e'] = '.'; |
- relativePathDotMapping['.%2e'] = '..'; |
- relativePathDotMapping['%2e.'] = '..'; |
- relativePathDotMapping['%2e%2e'] = '..'; |
- |
- function isRelativeScheme(scheme) { |
- return relative[scheme] !== undefined; |
- } |
- |
- function invalid() { |
- clear.call(this); |
- this._isInvalid = true; |
- } |
- |
- function IDNAToASCII(h) { |
- if ('' == h) { |
- invalid.call(this) |
- } |
- // XXX |
- return h.toLowerCase() |
- } |
- |
- function percentEscape(c) { |
- var unicode = c.charCodeAt(0); |
- if (unicode > 0x20 && |
- unicode < 0x7F && |
- // " # < > ? ` |
- [0x22, 0x23, 0x3C, 0x3E, 0x3F, 0x60].indexOf(unicode) == -1 |
- ) { |
- return c; |
- } |
- return encodeURIComponent(c); |
- } |
- |
- function percentEscapeQuery(c) { |
- // XXX This actually needs to encode c using encoding and then |
- // convert the bytes one-by-one. |
- |
- var unicode = c.charCodeAt(0); |
- if (unicode > 0x20 && |
- unicode < 0x7F && |
- // " # < > ` (do not escape '?') |
- [0x22, 0x23, 0x3C, 0x3E, 0x60].indexOf(unicode) == -1 |
- ) { |
- return c; |
- } |
- return encodeURIComponent(c); |
- } |
- |
- var EOF = undefined, |
- ALPHA = /[a-zA-Z]/, |
- ALPHANUMERIC = /[a-zA-Z0-9\+\-\.]/; |
- |
- function parse(input, stateOverride, base) { |
- function err(message) { |
- errors.push(message) |
- } |
- |
- var state = stateOverride || 'scheme start', |
- cursor = 0, |
- buffer = '', |
- seenAt = false, |
- seenBracket = false, |
- errors = []; |
- |
- loop: while ((input[cursor - 1] != EOF || cursor == 0) && !this._isInvalid) { |
- var c = input[cursor]; |
- switch (state) { |
- case 'scheme start': |
- if (c && ALPHA.test(c)) { |
- buffer += c.toLowerCase(); // ASCII-safe |
- state = 'scheme'; |
- } else if (!stateOverride) { |
- buffer = ''; |
- state = 'no scheme'; |
- continue; |
- } else { |
- err('Invalid scheme.'); |
- break loop; |
- } |
- break; |
- |
- case 'scheme': |
- if (c && ALPHANUMERIC.test(c)) { |
- buffer += c.toLowerCase(); // ASCII-safe |
- } else if (':' == c) { |
- this._scheme = buffer; |
- buffer = ''; |
- if (stateOverride) { |
- break loop; |
- } |
- if (isRelativeScheme(this._scheme)) { |
- this._isRelative = true; |
- } |
- if ('file' == this._scheme) { |
- state = 'relative'; |
- } else if (this._isRelative && base && base._scheme == this._scheme) { |
- state = 'relative or authority'; |
- } else if (this._isRelative) { |
- state = 'authority first slash'; |
- } else { |
- state = 'scheme data'; |
- } |
- } else if (!stateOverride) { |
- buffer = ''; |
- cursor = 0; |
- state = 'no scheme'; |
- continue; |
- } else if (EOF == c) { |
- break loop; |
- } else { |
- err('Code point not allowed in scheme: ' + c) |
- break loop; |
- } |
- break; |
- |
- case 'scheme data': |
- if ('?' == c) { |
- query = '?'; |
- state = 'query'; |
- } else if ('#' == c) { |
- this._fragment = '#'; |
- state = 'fragment'; |
- } else { |
- // XXX error handling |
- if (EOF != c && '\t' != c && '\n' != c && '\r' != c) { |
- this._schemeData += percentEscape(c); |
- } |
- } |
- break; |
- |
- case 'no scheme': |
- if (!base || !(isRelativeScheme(base._scheme))) { |
- err('Missing scheme.'); |
- invalid.call(this); |
- } else { |
- state = 'relative'; |
- continue; |
- } |
- break; |
- |
- case 'relative or authority': |
- if ('/' == c && '/' == input[cursor+1]) { |
- state = 'authority ignore slashes'; |
- } else { |
- err('Expected /, got: ' + c); |
- state = 'relative'; |
- continue |
- } |
- break; |
- |
- case 'relative': |
- this._isRelative = true; |
- if ('file' != this._scheme) |
- this._scheme = base._scheme; |
- if (EOF == c) { |
- this._host = base._host; |
- this._port = base._port; |
- this._path = base._path.slice(); |
- this._query = base._query; |
- break loop; |
- } else if ('/' == c || '\\' == c) { |
- if ('\\' == c) |
- err('\\ is an invalid code point.'); |
- state = 'relative slash'; |
- } else if ('?' == c) { |
- this._host = base._host; |
- this._port = base._port; |
- this._path = base._path.slice(); |
- this._query = '?'; |
- state = 'query'; |
- } else if ('#' == c) { |
- this._host = base._host; |
- this._port = base._port; |
- this._path = base._path.slice(); |
- this._query = base._query; |
- this._fragment = '#'; |
- state = 'fragment'; |
- } else { |
- var nextC = input[cursor+1] |
- var nextNextC = input[cursor+2] |
- if ( |
- 'file' != this._scheme || !ALPHA.test(c) || |
- (nextC != ':' && nextC != '|') || |
- (EOF != nextNextC && '/' != nextNextC && '\\' != nextNextC && '?' != nextNextC && '#' != nextNextC)) { |
- this._host = base._host; |
- this._port = base._port; |
- this._path = base._path.slice(); |
- this._path.pop(); |
- } |
- state = 'relative path'; |
- continue; |
- } |
- break; |
- |
- case 'relative slash': |
- if ('/' == c || '\\' == c) { |
- if ('\\' == c) { |
- err('\\ is an invalid code point.'); |
- } |
- if ('file' == this._scheme) { |
- state = 'file host'; |
- } else { |
- state = 'authority ignore slashes'; |
- } |
- } else { |
- if ('file' != this._scheme) { |
- this._host = base._host; |
- this._port = base._port; |
- } |
- state = 'relative path'; |
- continue; |
- } |
- break; |
- |
- case 'authority first slash': |
- if ('/' == c) { |
- state = 'authority second slash'; |
- } else { |
- err("Expected '/', got: " + c); |
- state = 'authority ignore slashes'; |
- continue; |
- } |
- break; |
- |
- case 'authority second slash': |
- state = 'authority ignore slashes'; |
- if ('/' != c) { |
- err("Expected '/', got: " + c); |
- continue; |
- } |
- break; |
- |
- case 'authority ignore slashes': |
- if ('/' != c && '\\' != c) { |
- state = 'authority'; |
- continue; |
- } else { |
- err('Expected authority, got: ' + c); |
- } |
- break; |
- |
- case 'authority': |
- if ('@' == c) { |
- if (seenAt) { |
- err('@ already seen.'); |
- buffer += '%40'; |
- } |
- seenAt = true; |
- for (var i = 0; i < buffer.length; i++) { |
- var cp = buffer[i]; |
- if ('\t' == cp || '\n' == cp || '\r' == cp) { |
- err('Invalid whitespace in authority.'); |
- continue; |
- } |
- // XXX check URL code points |
- if (':' == cp && null === this._password) { |
- this._password = ''; |
- continue; |
- } |
- var tempC = percentEscape(cp); |
- (null !== this._password) ? this._password += tempC : this._username += tempC; |
- } |
- buffer = ''; |
- } else if (EOF == c || '/' == c || '\\' == c || '?' == c || '#' == c) { |
- cursor -= buffer.length; |
- buffer = ''; |
- state = 'host'; |
- continue; |
- } else { |
- buffer += c; |
- } |
- break; |
- |
- case 'file host': |
- if (EOF == c || '/' == c || '\\' == c || '?' == c || '#' == c) { |
- if (buffer.length == 2 && ALPHA.test(buffer[0]) && (buffer[1] == ':' || buffer[1] == '|')) { |
- state = 'relative path'; |
- } else if (buffer.length == 0) { |
- state = 'relative path start'; |
- } else { |
- this._host = IDNAToASCII.call(this, buffer); |
- buffer = ''; |
- state = 'relative path start'; |
- } |
- continue; |
- } else if ('\t' == c || '\n' == c || '\r' == c) { |
- err('Invalid whitespace in file host.'); |
- } else { |
- buffer += c; |
- } |
- break; |
- |
- case 'host': |
- case 'hostname': |
- if (':' == c && !seenBracket) { |
- // XXX host parsing |
- this._host = IDNAToASCII.call(this, buffer); |
- buffer = ''; |
- state = 'port'; |
- if ('hostname' == stateOverride) { |
- break loop; |
- } |
- } else if (EOF == c || '/' == c || '\\' == c || '?' == c || '#' == c) { |
- this._host = IDNAToASCII.call(this, buffer); |
- buffer = ''; |
- state = 'relative path start'; |
- if (stateOverride) { |
- break loop; |
- } |
- continue; |
- } else if ('\t' != c && '\n' != c && '\r' != c) { |
- if ('[' == c) { |
- seenBracket = true; |
- } else if (']' == c) { |
- seenBracket = false; |
- } |
- buffer += c; |
- } else { |
- err('Invalid code point in host/hostname: ' + c); |
- } |
- break; |
- |
- case 'port': |
- if (/[0-9]/.test(c)) { |
- buffer += c; |
- } else if (EOF == c || '/' == c || '\\' == c || '?' == c || '#' == c || stateOverride) { |
- if ('' != buffer) { |
- var temp = parseInt(buffer, 10); |
- if (temp != relative[this._scheme]) { |
- this._port = temp + ''; |
- } |
- buffer = ''; |
- } |
- if (stateOverride) { |
- break loop; |
- } |
- state = 'relative path start'; |
- continue; |
- } else if ('\t' == c || '\n' == c || '\r' == c) { |
- err('Invalid code point in port: ' + c); |
- } else { |
- invalid.call(this); |
- } |
- break; |
- |
- case 'relative path start': |
- if ('\\' == c) |
- err("'\\' not allowed in path."); |
- state = 'relative path'; |
- if ('/' != c && '\\' != c) { |
- continue; |
- } |
- break; |
- |
- case 'relative path': |
- if (EOF == c || '/' == c || '\\' == c || (!stateOverride && ('?' == c || '#' == c))) { |
- if ('\\' == c) { |
- err('\\ not allowed in relative path.'); |
- } |
- var tmp; |
- if (tmp = relativePathDotMapping[buffer.toLowerCase()]) { |
- buffer = tmp; |
- } |
- if ('..' == buffer) { |
- this._path.pop(); |
- if ('/' != c && '\\' != c) { |
- this._path.push(''); |
- } |
- } else if ('.' == buffer && '/' != c && '\\' != c) { |
- this._path.push(''); |
- } else if ('.' != buffer) { |
- if ('file' == this._scheme && this._path.length == 0 && buffer.length == 2 && ALPHA.test(buffer[0]) && buffer[1] == '|') { |
- buffer = buffer[0] + ':'; |
- } |
- this._path.push(buffer); |
- } |
- buffer = ''; |
- if ('?' == c) { |
- this._query = '?'; |
- state = 'query'; |
- } else if ('#' == c) { |
- this._fragment = '#'; |
- state = 'fragment'; |
- } |
- } else if ('\t' != c && '\n' != c && '\r' != c) { |
- buffer += percentEscape(c); |
- } |
- break; |
- |
- case 'query': |
- if (!stateOverride && '#' == c) { |
- this._fragment = '#'; |
- state = 'fragment'; |
- } else if (EOF != c && '\t' != c && '\n' != c && '\r' != c) { |
- this._query += percentEscapeQuery(c); |
- } |
- break; |
- |
- case 'fragment': |
- if (EOF != c && '\t' != c && '\n' != c && '\r' != c) { |
- this._fragment += c; |
- } |
- break; |
- } |
- |
- cursor++; |
- } |
- } |
- |
- function clear() { |
- this._scheme = ''; |
- this._schemeData = ''; |
- this._username = ''; |
- this._password = null; |
- this._host = ''; |
- this._port = ''; |
- this._path = []; |
- this._query = ''; |
- this._fragment = ''; |
- this._isInvalid = false; |
- this._isRelative = false; |
- } |
- |
- // Does not process domain names or IP addresses. |
- // Does not handle encoding for the query parameter. |
- function jURL(url, base /* , encoding */) { |
- if (base !== undefined && !(base instanceof jURL)) |
- base = new jURL(String(base)); |
- |
- this._url = url; |
- clear.call(this); |
- |
- var input = url.replace(/^[ \t\r\n\f]+|[ \t\r\n\f]+$/g, ''); |
- // encoding = encoding || 'utf-8' |
- |
- parse.call(this, input, null, base); |
- } |
- |
- jURL.prototype = { |
- get href() { |
- if (this._isInvalid) |
- return this._url; |
- |
- var authority = ''; |
- if ('' != this._username || null != this._password) { |
- authority = this._username + |
- (null != this._password ? ':' + this._password : '') + '@'; |
- } |
- |
- return this.protocol + |
- (this._isRelative ? '//' + authority + this.host : '') + |
- this.pathname + this._query + this._fragment; |
- }, |
- set href(href) { |
- clear.call(this); |
- parse.call(this, href); |
- }, |
- |
- get protocol() { |
- return this._scheme + ':'; |
- }, |
- set protocol(protocol) { |
- if (this._isInvalid) |
- return; |
- parse.call(this, protocol + ':', 'scheme start'); |
- }, |
- |
- get host() { |
- return this._isInvalid ? '' : this._port ? |
- this._host + ':' + this._port : this._host; |
- }, |
- set host(host) { |
- if (this._isInvalid || !this._isRelative) |
- return; |
- parse.call(this, host, 'host'); |
- }, |
- |
- get hostname() { |
- return this._host; |
- }, |
- set hostname(hostname) { |
- if (this._isInvalid || !this._isRelative) |
- return; |
- parse.call(this, hostname, 'hostname'); |
- }, |
- |
- get port() { |
- return this._port; |
- }, |
- set port(port) { |
- if (this._isInvalid || !this._isRelative) |
- return; |
- parse.call(this, port, 'port'); |
- }, |
- |
- get pathname() { |
- return this._isInvalid ? '' : this._isRelative ? |
- '/' + this._path.join('/') : this._schemeData; |
- }, |
- set pathname(pathname) { |
- if (this._isInvalid || !this._isRelative) |
- return; |
- this._path = []; |
- parse.call(this, pathname, 'relative path start'); |
- }, |
- |
- get search() { |
- return this._isInvalid || !this._query || '?' == this._query ? |
- '' : this._query; |
- }, |
- set search(search) { |
- if (this._isInvalid || !this._isRelative) |
- return; |
- this._query = '?'; |
- if ('?' == search[0]) |
- search = search.slice(1); |
- parse.call(this, search, 'query'); |
- }, |
- |
- get hash() { |
- return this._isInvalid || !this._fragment || '#' == this._fragment ? |
- '' : this._fragment; |
- }, |
- set hash(hash) { |
- if (this._isInvalid) |
- return; |
- this._fragment = '#'; |
- if ('#' == hash[0]) |
- hash = hash.slice(1); |
- parse.call(this, hash, 'fragment'); |
- } |
- }; |
- |
- scope.URL = jURL; |
- |
-})(window); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- |
-// Old versions of iOS do not have bind. |
- |
-if (!Function.prototype.bind) { |
- Function.prototype.bind = function(scope) { |
- var self = this; |
- var args = Array.prototype.slice.call(arguments, 1); |
- return function() { |
- var args2 = args.slice(); |
- args2.push.apply(args2, arguments); |
- return self.apply(scope, args2); |
- }; |
- }; |
-} |
- |
-// mixin |
- |
-// copy all properties from inProps (et al) to inObj |
-function mixin(inObj/*, inProps, inMoreProps, ...*/) { |
- var obj = inObj || {}; |
- for (var i = 1; i < arguments.length; i++) { |
- var p = arguments[i]; |
- try { |
- for (var n in p) { |
- copyProperty(n, p, obj); |
- } |
- } catch(x) { |
- } |
- } |
- return obj; |
-} |
- |
-// copy property inName from inSource object to inTarget object |
-function copyProperty(inName, inSource, inTarget) { |
- var pd = getPropertyDescriptor(inSource, inName); |
- Object.defineProperty(inTarget, inName, pd); |
-} |
- |
-// get property descriptor for inName on inObject, even if |
-// inName exists on some link in inObject's prototype chain |
-function getPropertyDescriptor(inObject, inName) { |
- if (inObject) { |
- var pd = Object.getOwnPropertyDescriptor(inObject, inName); |
- return pd || getPropertyDescriptor(Object.getPrototypeOf(inObject), inName); |
- } |
-} |
- |
-// export |
- |
-scope.mixin = mixin; |
- |
-})(window.Platform); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- |
- 'use strict'; |
- |
- // polyfill DOMTokenList |
- // * add/remove: allow these methods to take multiple classNames |
- // * toggle: add a 2nd argument which forces the given state rather |
- // than toggling. |
- |
- var add = DOMTokenList.prototype.add; |
- var remove = DOMTokenList.prototype.remove; |
- DOMTokenList.prototype.add = function() { |
- for (var i = 0; i < arguments.length; i++) { |
- add.call(this, arguments[i]); |
- } |
- }; |
- DOMTokenList.prototype.remove = function() { |
- for (var i = 0; i < arguments.length; i++) { |
- remove.call(this, arguments[i]); |
- } |
- }; |
- DOMTokenList.prototype.toggle = function(name, bool) { |
- if (arguments.length == 1) { |
- bool = !this.contains(name); |
- } |
- bool ? this.add(name) : this.remove(name); |
- }; |
- DOMTokenList.prototype.switch = function(oldName, newName) { |
- oldName && this.remove(oldName); |
- newName && this.add(newName); |
- }; |
- |
- // add array() to NodeList, NamedNodeMap, HTMLCollection |
- |
- var ArraySlice = function() { |
- return Array.prototype.slice.call(this); |
- }; |
- |
- var namedNodeMap = (window.NamedNodeMap || window.MozNamedAttrMap || {}); |
- |
- NodeList.prototype.array = ArraySlice; |
- namedNodeMap.prototype.array = ArraySlice; |
- HTMLCollection.prototype.array = ArraySlice; |
- |
- // polyfill performance.now |
- |
- if (!window.performance) { |
- var start = Date.now(); |
- // only at millisecond precision |
- window.performance = {now: function(){ return Date.now() - start }}; |
- } |
- |
- // polyfill for requestAnimationFrame |
- |
- if (!window.requestAnimationFrame) { |
- window.requestAnimationFrame = (function() { |
- var nativeRaf = window.webkitRequestAnimationFrame || |
- window.mozRequestAnimationFrame; |
- |
- return nativeRaf ? |
- function(callback) { |
- return nativeRaf(function() { |
- callback(performance.now()); |
- }); |
- } : |
- function( callback ){ |
- return window.setTimeout(callback, 1000 / 60); |
- }; |
- })(); |
- } |
- |
- if (!window.cancelAnimationFrame) { |
- window.cancelAnimationFrame = (function() { |
- return window.webkitCancelAnimationFrame || |
- window.mozCancelAnimationFrame || |
- function(id) { |
- clearTimeout(id); |
- }; |
- })(); |
- } |
- |
- // utility |
- |
- function createDOM(inTagOrNode, inHTML, inAttrs) { |
- var dom = typeof inTagOrNode == 'string' ? |
- document.createElement(inTagOrNode) : inTagOrNode.cloneNode(true); |
- dom.innerHTML = inHTML; |
- if (inAttrs) { |
- for (var n in inAttrs) { |
- dom.setAttribute(n, inAttrs[n]); |
- } |
- } |
- return dom; |
- } |
- // Make a stub for Polymer() for polyfill purposes; under the HTMLImports |
- // polyfill, scripts in the main document run before imports. That means |
- // if (1) polymer is imported and (2) Polymer() is called in the main document |
- // in a script after the import, 2 occurs before 1. We correct this here |
- // by specfiically patching Polymer(); this is not necessary under native |
- // HTMLImports. |
- var elementDeclarations = []; |
- |
- var polymerStub = function(name, dictionary) { |
- elementDeclarations.push(arguments); |
- } |
- window.Polymer = polymerStub; |
- |
- // deliver queued delcarations |
- scope.deliverDeclarations = function() { |
- scope.deliverDeclarations = function() { |
- throw 'Possible attempt to load Polymer twice'; |
- }; |
- return elementDeclarations; |
- } |
- |
- // Once DOMContent has loaded, any main document scripts that depend on |
- // Polymer() should have run. Calling Polymer() now is an error until |
- // polymer is imported. |
- window.addEventListener('DOMContentLoaded', function() { |
- if (window.Polymer === polymerStub) { |
- window.Polymer = function() { |
- console.error('You tried to use polymer without loading it first. To ' + |
- 'load polymer, <link rel="import" href="' + |
- 'components/polymer/polymer.html">'); |
- }; |
- } |
- }); |
- |
- // exports |
- scope.createDOM = createDOM; |
- |
-})(window.Platform); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-// poor man's adapter for template.content on various platform scenarios |
-(function(scope) { |
- scope.templateContent = scope.templateContent || function(inTemplate) { |
- return inTemplate.content; |
- }; |
-})(window.Platform); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- |
- scope = scope || (window.Inspector = {}); |
- |
- var inspector; |
- |
- window.sinspect = function(inNode, inProxy) { |
- if (!inspector) { |
- inspector = window.open('', 'ShadowDOM Inspector', null, true); |
- inspector.document.write(inspectorHTML); |
- //inspector.document.close(); |
- inspector.api = { |
- shadowize: shadowize |
- }; |
- } |
- inspect(inNode || wrap(document.body), inProxy); |
- }; |
- |
- var inspectorHTML = [ |
- '<!DOCTYPE html>', |
- '<html>', |
- ' <head>', |
- ' <title>ShadowDOM Inspector</title>', |
- ' <style>', |
- ' body {', |
- ' }', |
- ' pre {', |
- ' font: 9pt "Courier New", monospace;', |
- ' line-height: 1.5em;', |
- ' }', |
- ' tag {', |
- ' color: purple;', |
- ' }', |
- ' ul {', |
- ' margin: 0;', |
- ' padding: 0;', |
- ' list-style: none;', |
- ' }', |
- ' li {', |
- ' display: inline-block;', |
- ' background-color: #f1f1f1;', |
- ' padding: 4px 6px;', |
- ' border-radius: 4px;', |
- ' margin-right: 4px;', |
- ' }', |
- ' </style>', |
- ' </head>', |
- ' <body>', |
- ' <ul id="crumbs">', |
- ' </ul>', |
- ' <div id="tree"></div>', |
- ' </body>', |
- '</html>' |
- ].join('\n'); |
- |
- var crumbs = []; |
- |
- var displayCrumbs = function() { |
- // alias our document |
- var d = inspector.document; |
- // get crumbbar |
- var cb = d.querySelector('#crumbs'); |
- // clear crumbs |
- cb.textContent = ''; |
- // build new crumbs |
- for (var i=0, c; c=crumbs[i]; i++) { |
- var a = d.createElement('a'); |
- a.href = '#'; |
- a.textContent = c.localName; |
- a.idx = i; |
- a.onclick = function(event) { |
- var c; |
- while (crumbs.length > this.idx) { |
- c = crumbs.pop(); |
- } |
- inspect(c.shadow || c, c); |
- event.preventDefault(); |
- }; |
- cb.appendChild(d.createElement('li')).appendChild(a); |
- } |
- }; |
- |
- var inspect = function(inNode, inProxy) { |
- // alias our document |
- var d = inspector.document; |
- // reset list of drillable nodes |
- drillable = []; |
- // memoize our crumb proxy |
- var proxy = inProxy || inNode; |
- crumbs.push(proxy); |
- // update crumbs |
- displayCrumbs(); |
- // reflect local tree |
- d.body.querySelector('#tree').innerHTML = |
- '<pre>' + output(inNode, inNode.childNodes) + '</pre>'; |
- }; |
- |
- var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach); |
- |
- var blacklisted = {STYLE:1, SCRIPT:1, "#comment": 1, TEMPLATE: 1}; |
- var blacklist = function(inNode) { |
- return blacklisted[inNode.nodeName]; |
- }; |
- |
- var output = function(inNode, inChildNodes, inIndent) { |
- if (blacklist(inNode)) { |
- return ''; |
- } |
- var indent = inIndent || ''; |
- if (inNode.localName || inNode.nodeType == 11) { |
- var name = inNode.localName || 'shadow-root'; |
- //inChildNodes = ShadowDOM.localNodes(inNode); |
- var info = indent + describe(inNode); |
- // if only textNodes |
- // TODO(sjmiles): make correct for ShadowDOM |
- /*if (!inNode.children.length && inNode.localName !== 'content' && inNode.localName !== 'shadow') { |
- info += catTextContent(inChildNodes); |
- } else*/ { |
- // TODO(sjmiles): native <shadow> has no reference to its projection |
- if (name == 'content' /*|| name == 'shadow'*/) { |
- inChildNodes = inNode.getDistributedNodes(); |
- } |
- info += '<br/>'; |
- var ind = indent + ' '; |
- forEach(inChildNodes, function(n) { |
- info += output(n, n.childNodes, ind); |
- }); |
- info += indent; |
- } |
- if (!({br:1}[name])) { |
- info += '<tag></' + name + '></tag>'; |
- info += '<br/>'; |
- } |
- } else { |
- var text = inNode.textContent.trim(); |
- info = text ? indent + '"' + text + '"' + '<br/>' : ''; |
- } |
- return info; |
- }; |
- |
- var catTextContent = function(inChildNodes) { |
- var info = ''; |
- forEach(inChildNodes, function(n) { |
- info += n.textContent.trim(); |
- }); |
- return info; |
- }; |
- |
- var drillable = []; |
- |
- var describe = function(inNode) { |
- var tag = '<tag>' + '<'; |
- var name = inNode.localName || 'shadow-root'; |
- if (inNode.webkitShadowRoot || inNode.shadowRoot) { |
- tag += ' <button idx="' + drillable.length + |
- '" onclick="api.shadowize.call(this)">' + name + '</button>'; |
- drillable.push(inNode); |
- } else { |
- tag += name || 'shadow-root'; |
- } |
- if (inNode.attributes) { |
- forEach(inNode.attributes, function(a) { |
- tag += ' ' + a.name + (a.value ? '="' + a.value + '"' : ''); |
- }); |
- } |
- tag += '>'+ '</tag>'; |
- return tag; |
- }; |
- |
- // remote api |
- |
- shadowize = function() { |
- var idx = Number(this.attributes.idx.value); |
- //alert(idx); |
- var node = drillable[idx]; |
- if (node) { |
- inspect(node.webkitShadowRoot || node.shadowRoot, node) |
- } else { |
- console.log("bad shadowize node"); |
- console.dir(this); |
- } |
- }; |
- |
- // export |
- |
- scope.output = output; |
- |
-})(window.Inspector); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- |
- // TODO(sorvell): It's desireable to provide a default stylesheet |
- // that's convenient for styling unresolved elements, but |
- // it's cumbersome to have to include this manually in every page. |
- // It would make sense to put inside some HTMLImport but |
- // the HTMLImports polyfill does not allow loading of stylesheets |
- // that block rendering. Therefore this injection is tolerated here. |
- |
- var style = document.createElement('style'); |
- style.textContent = '' |
- + 'body {' |
- + 'transition: opacity ease-in 0.2s;' |
- + ' } \n' |
- + 'body[unresolved] {' |
- + 'opacity: 0; display: block; overflow: hidden;' |
- + ' } \n' |
- ; |
- var head = document.querySelector('head'); |
- head.insertBefore(style, head.firstChild); |
- |
-})(Platform); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- |
- function withDependencies(task, depends) { |
- depends = depends || []; |
- if (!depends.map) { |
- depends = [depends]; |
- } |
- return task.apply(this, depends.map(marshal)); |
- } |
- |
- function module(name, dependsOrFactory, moduleFactory) { |
- var module; |
- switch (arguments.length) { |
- case 0: |
- return; |
- case 1: |
- module = null; |
- break; |
- case 2: |
- // dependsOrFactory is `factory` in this case |
- module = dependsOrFactory.apply(this); |
- break; |
- default: |
- // dependsOrFactory is `depends` in this case |
- module = withDependencies(moduleFactory, dependsOrFactory); |
- break; |
- } |
- modules[name] = module; |
- }; |
- |
- function marshal(name) { |
- return modules[name]; |
- } |
- |
- var modules = {}; |
- |
- function using(depends, task) { |
- HTMLImports.whenImportsReady(function() { |
- withDependencies(task, depends); |
- }); |
- }; |
- |
- // exports |
- |
- scope.marshal = marshal; |
- // `module` confuses commonjs detectors |
- scope.modularize = module; |
- scope.using = using; |
- |
-})(window); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- |
-var iterations = 0; |
-var callbacks = []; |
-var twiddle = document.createTextNode(''); |
- |
-function endOfMicrotask(callback) { |
- twiddle.textContent = iterations++; |
- callbacks.push(callback); |
-} |
- |
-function atEndOfMicrotask() { |
- while (callbacks.length) { |
- callbacks.shift()(); |
- } |
-} |
- |
-new (window.MutationObserver || JsMutationObserver)(atEndOfMicrotask) |
- .observe(twiddle, {characterData: true}) |
- ; |
- |
-// exports |
- |
-scope.endOfMicrotask = endOfMicrotask; |
- |
-})(Platform); |
- |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- |
-var urlResolver = { |
- resolveDom: function(root, url) { |
- url = url || root.ownerDocument.baseURI; |
- this.resolveAttributes(root, url); |
- this.resolveStyles(root, url); |
- // handle template.content |
- var templates = root.querySelectorAll('template'); |
- if (templates) { |
- for (var i = 0, l = templates.length, t; (i < l) && (t = templates[i]); i++) { |
- if (t.content) { |
- this.resolveDom(t.content, url); |
- } |
- } |
- } |
- }, |
- resolveTemplate: function(template) { |
- this.resolveDom(template.content, template.ownerDocument.baseURI); |
- }, |
- resolveStyles: function(root, url) { |
- var styles = root.querySelectorAll('style'); |
- if (styles) { |
- for (var i = 0, l = styles.length, s; (i < l) && (s = styles[i]); i++) { |
- this.resolveStyle(s, url); |
- } |
- } |
- }, |
- resolveStyle: function(style, url) { |
- url = url || style.ownerDocument.baseURI; |
- style.textContent = this.resolveCssText(style.textContent, url); |
- }, |
- resolveCssText: function(cssText, baseUrl, keepAbsolute) { |
- cssText = replaceUrlsInCssText(cssText, baseUrl, keepAbsolute, CSS_URL_REGEXP); |
- return replaceUrlsInCssText(cssText, baseUrl, keepAbsolute, CSS_IMPORT_REGEXP); |
- }, |
- resolveAttributes: function(root, url) { |
- if (root.hasAttributes && root.hasAttributes()) { |
- this.resolveElementAttributes(root, url); |
- } |
- // search for attributes that host urls |
- var nodes = root && root.querySelectorAll(URL_ATTRS_SELECTOR); |
- if (nodes) { |
- for (var i = 0, l = nodes.length, n; (i < l) && (n = nodes[i]); i++) { |
- this.resolveElementAttributes(n, url); |
- } |
- } |
- }, |
- resolveElementAttributes: function(node, url) { |
- url = url || node.ownerDocument.baseURI; |
- URL_ATTRS.forEach(function(v) { |
- var attr = node.attributes[v]; |
- var value = attr && attr.value; |
- var replacement; |
- if (value && value.search(URL_TEMPLATE_SEARCH) < 0) { |
- if (v === 'style') { |
- replacement = replaceUrlsInCssText(value, url, false, CSS_URL_REGEXP); |
- } else { |
- replacement = resolveRelativeUrl(url, value); |
- } |
- attr.value = replacement; |
- } |
- }); |
- } |
-}; |
- |
-var CSS_URL_REGEXP = /(url\()([^)]*)(\))/g; |
-var CSS_IMPORT_REGEXP = /(@import[\s]+(?!url\())([^;]*)(;)/g; |
-var URL_ATTRS = ['href', 'src', 'action', 'style', 'url']; |
-var URL_ATTRS_SELECTOR = '[' + URL_ATTRS.join('],[') + ']'; |
-var URL_TEMPLATE_SEARCH = '{{.*}}'; |
- |
-function replaceUrlsInCssText(cssText, baseUrl, keepAbsolute, regexp) { |
- return cssText.replace(regexp, function(m, pre, url, post) { |
- var urlPath = url.replace(/["']/g, ''); |
- urlPath = resolveRelativeUrl(baseUrl, urlPath, keepAbsolute); |
- return pre + '\'' + urlPath + '\'' + post; |
- }); |
-} |
- |
-function resolveRelativeUrl(baseUrl, url, keepAbsolute) { |
- // do not resolve '/' absolute urls |
- if (url && url[0] === '/') { |
- return url; |
- } |
- var u = new URL(url, baseUrl); |
- return keepAbsolute ? u.href : makeDocumentRelPath(u.href); |
-} |
- |
-function makeDocumentRelPath(url) { |
- var root = new URL(document.baseURI); |
- var u = new URL(url, root); |
- if (u.host === root.host && u.port === root.port && |
- u.protocol === root.protocol) { |
- return makeRelPath(root, u); |
- } else { |
- return url; |
- } |
-} |
- |
-// make a relative path from source to target |
-function makeRelPath(sourceUrl, targetUrl) { |
- var source = sourceUrl.pathname; |
- var target = targetUrl.pathname; |
- var s = source.split('/'); |
- var t = target.split('/'); |
- while (s.length && s[0] === t[0]){ |
- s.shift(); |
- t.shift(); |
- } |
- for (var i = 0, l = s.length - 1; i < l; i++) { |
- t.unshift('..'); |
- } |
- return t.join('/') + targetUrl.search + targetUrl.hash; |
-} |
- |
-// exports |
-scope.urlResolver = urlResolver; |
- |
-})(Platform); |
- |
-/* |
- * Copyright 2012 The Polymer Authors. All rights reserved. |
- * Use of this source code is goverened by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(global) { |
- |
- var registrationsTable = new WeakMap(); |
- |
- // We use setImmediate or postMessage for our future callback. |
- var setImmediate = window.msSetImmediate; |
- |
- // Use post message to emulate setImmediate. |
- if (!setImmediate) { |
- var setImmediateQueue = []; |
- var sentinel = String(Math.random()); |
- window.addEventListener('message', function(e) { |
- if (e.data === sentinel) { |
- var queue = setImmediateQueue; |
- setImmediateQueue = []; |
- queue.forEach(function(func) { |
- func(); |
- }); |
- } |
- }); |
- setImmediate = function(func) { |
- setImmediateQueue.push(func); |
- window.postMessage(sentinel, '*'); |
- }; |
- } |
- |
- // This is used to ensure that we never schedule 2 callas to setImmediate |
- var isScheduled = false; |
- |
- // Keep track of observers that needs to be notified next time. |
- var scheduledObservers = []; |
- |
- /** |
- * Schedules |dispatchCallback| to be called in the future. |
- * @param {MutationObserver} observer |
- */ |
- function scheduleCallback(observer) { |
- scheduledObservers.push(observer); |
- if (!isScheduled) { |
- isScheduled = true; |
- setImmediate(dispatchCallbacks); |
- } |
- } |
- |
- function wrapIfNeeded(node) { |
- return window.ShadowDOMPolyfill && |
- window.ShadowDOMPolyfill.wrapIfNeeded(node) || |
- node; |
- } |
- |
- function dispatchCallbacks() { |
- // http://dom.spec.whatwg.org/#mutation-observers |
- |
- isScheduled = false; // Used to allow a new setImmediate call above. |
- |
- var observers = scheduledObservers; |
- scheduledObservers = []; |
- // Sort observers based on their creation UID (incremental). |
- observers.sort(function(o1, o2) { |
- return o1.uid_ - o2.uid_; |
- }); |
- |
- var anyNonEmpty = false; |
- observers.forEach(function(observer) { |
- |
- // 2.1, 2.2 |
- var queue = observer.takeRecords(); |
- // 2.3. Remove all transient registered observers whose observer is mo. |
- removeTransientObserversFor(observer); |
- |
- // 2.4 |
- if (queue.length) { |
- observer.callback_(queue, observer); |
- anyNonEmpty = true; |
- } |
- }); |
- |
- // 3. |
- if (anyNonEmpty) |
- dispatchCallbacks(); |
- } |
- |
- function removeTransientObserversFor(observer) { |
- observer.nodes_.forEach(function(node) { |
- var registrations = registrationsTable.get(node); |
- if (!registrations) |
- return; |
- registrations.forEach(function(registration) { |
- if (registration.observer === observer) |
- registration.removeTransientObservers(); |
- }); |
- }); |
- } |
- |
- /** |
- * This function is used for the "For each registered observer observer (with |
- * observer's options as options) in target's list of registered observers, |
- * run these substeps:" and the "For each ancestor ancestor of target, and for |
- * each registered observer observer (with options options) in ancestor's list |
- * of registered observers, run these substeps:" part of the algorithms. The |
- * |options.subtree| is checked to ensure that the callback is called |
- * correctly. |
- * |
- * @param {Node} target |
- * @param {function(MutationObserverInit):MutationRecord} callback |
- */ |
- function forEachAncestorAndObserverEnqueueRecord(target, callback) { |
- for (var node = target; node; node = node.parentNode) { |
- var registrations = registrationsTable.get(node); |
- |
- if (registrations) { |
- for (var j = 0; j < registrations.length; j++) { |
- var registration = registrations[j]; |
- var options = registration.options; |
- |
- // Only target ignores subtree. |
- if (node !== target && !options.subtree) |
- continue; |
- |
- var record = callback(options); |
- if (record) |
- registration.enqueue(record); |
- } |
- } |
- } |
- } |
- |
- var uidCounter = 0; |
- |
- /** |
- * The class that maps to the DOM MutationObserver interface. |
- * @param {Function} callback. |
- * @constructor |
- */ |
- function JsMutationObserver(callback) { |
- this.callback_ = callback; |
- this.nodes_ = []; |
- this.records_ = []; |
- this.uid_ = ++uidCounter; |
- } |
- |
- JsMutationObserver.prototype = { |
- observe: function(target, options) { |
- target = wrapIfNeeded(target); |
- |
- // 1.1 |
- if (!options.childList && !options.attributes && !options.characterData || |
- |
- // 1.2 |
- options.attributeOldValue && !options.attributes || |
- |
- // 1.3 |
- options.attributeFilter && options.attributeFilter.length && |
- !options.attributes || |
- |
- // 1.4 |
- options.characterDataOldValue && !options.characterData) { |
- |
- throw new SyntaxError(); |
- } |
- |
- var registrations = registrationsTable.get(target); |
- if (!registrations) |
- registrationsTable.set(target, registrations = []); |
- |
- // 2 |
- // If target's list of registered observers already includes a registered |
- // observer associated with the context object, replace that registered |
- // observer's options with options. |
- var registration; |
- for (var i = 0; i < registrations.length; i++) { |
- if (registrations[i].observer === this) { |
- registration = registrations[i]; |
- registration.removeListeners(); |
- registration.options = options; |
- break; |
- } |
- } |
- |
- // 3. |
- // Otherwise, add a new registered observer to target's list of registered |
- // observers with the context object as the observer and options as the |
- // options, and add target to context object's list of nodes on which it |
- // is registered. |
- if (!registration) { |
- registration = new Registration(this, target, options); |
- registrations.push(registration); |
- this.nodes_.push(target); |
- } |
- |
- registration.addListeners(); |
- }, |
- |
- disconnect: function() { |
- this.nodes_.forEach(function(node) { |
- var registrations = registrationsTable.get(node); |
- for (var i = 0; i < registrations.length; i++) { |
- var registration = registrations[i]; |
- if (registration.observer === this) { |
- registration.removeListeners(); |
- registrations.splice(i, 1); |
- // Each node can only have one registered observer associated with |
- // this observer. |
- break; |
- } |
- } |
- }, this); |
- this.records_ = []; |
- }, |
- |
- takeRecords: function() { |
- var copyOfRecords = this.records_; |
- this.records_ = []; |
- return copyOfRecords; |
- } |
- }; |
- |
- /** |
- * @param {string} type |
- * @param {Node} target |
- * @constructor |
- */ |
- function MutationRecord(type, target) { |
- this.type = type; |
- this.target = target; |
- this.addedNodes = []; |
- this.removedNodes = []; |
- this.previousSibling = null; |
- this.nextSibling = null; |
- this.attributeName = null; |
- this.attributeNamespace = null; |
- this.oldValue = null; |
- } |
- |
- function copyMutationRecord(original) { |
- var record = new MutationRecord(original.type, original.target); |
- record.addedNodes = original.addedNodes.slice(); |
- record.removedNodes = original.removedNodes.slice(); |
- record.previousSibling = original.previousSibling; |
- record.nextSibling = original.nextSibling; |
- record.attributeName = original.attributeName; |
- record.attributeNamespace = original.attributeNamespace; |
- record.oldValue = original.oldValue; |
- return record; |
- }; |
- |
- // We keep track of the two (possibly one) records used in a single mutation. |
- var currentRecord, recordWithOldValue; |
- |
- /** |
- * Creates a record without |oldValue| and caches it as |currentRecord| for |
- * later use. |
- * @param {string} oldValue |
- * @return {MutationRecord} |
- */ |
- function getRecord(type, target) { |
- return currentRecord = new MutationRecord(type, target); |
- } |
- |
- /** |
- * Gets or creates a record with |oldValue| based in the |currentRecord| |
- * @param {string} oldValue |
- * @return {MutationRecord} |
- */ |
- function getRecordWithOldValue(oldValue) { |
- if (recordWithOldValue) |
- return recordWithOldValue; |
- recordWithOldValue = copyMutationRecord(currentRecord); |
- recordWithOldValue.oldValue = oldValue; |
- return recordWithOldValue; |
- } |
- |
- function clearRecords() { |
- currentRecord = recordWithOldValue = undefined; |
- } |
- |
- /** |
- * @param {MutationRecord} record |
- * @return {boolean} Whether the record represents a record from the current |
- * mutation event. |
- */ |
- function recordRepresentsCurrentMutation(record) { |
- return record === recordWithOldValue || record === currentRecord; |
- } |
- |
- /** |
- * Selects which record, if any, to replace the last record in the queue. |
- * This returns |null| if no record should be replaced. |
- * |
- * @param {MutationRecord} lastRecord |
- * @param {MutationRecord} newRecord |
- * @param {MutationRecord} |
- */ |
- function selectRecord(lastRecord, newRecord) { |
- if (lastRecord === newRecord) |
- return lastRecord; |
- |
- // Check if the the record we are adding represents the same record. If |
- // so, we keep the one with the oldValue in it. |
- if (recordWithOldValue && recordRepresentsCurrentMutation(lastRecord)) |
- return recordWithOldValue; |
- |
- return null; |
- } |
- |
- /** |
- * Class used to represent a registered observer. |
- * @param {MutationObserver} observer |
- * @param {Node} target |
- * @param {MutationObserverInit} options |
- * @constructor |
- */ |
- function Registration(observer, target, options) { |
- this.observer = observer; |
- this.target = target; |
- this.options = options; |
- this.transientObservedNodes = []; |
- } |
- |
- Registration.prototype = { |
- enqueue: function(record) { |
- var records = this.observer.records_; |
- var length = records.length; |
- |
- // There are cases where we replace the last record with the new record. |
- // For example if the record represents the same mutation we need to use |
- // the one with the oldValue. If we get same record (this can happen as we |
- // walk up the tree) we ignore the new record. |
- if (records.length > 0) { |
- var lastRecord = records[length - 1]; |
- var recordToReplaceLast = selectRecord(lastRecord, record); |
- if (recordToReplaceLast) { |
- records[length - 1] = recordToReplaceLast; |
- return; |
- } |
- } else { |
- scheduleCallback(this.observer); |
- } |
- |
- records[length] = record; |
- }, |
- |
- addListeners: function() { |
- this.addListeners_(this.target); |
- }, |
- |
- addListeners_: function(node) { |
- var options = this.options; |
- if (options.attributes) |
- node.addEventListener('DOMAttrModified', this, true); |
- |
- if (options.characterData) |
- node.addEventListener('DOMCharacterDataModified', this, true); |
- |
- if (options.childList) |
- node.addEventListener('DOMNodeInserted', this, true); |
- |
- if (options.childList || options.subtree) |
- node.addEventListener('DOMNodeRemoved', this, true); |
- }, |
- |
- removeListeners: function() { |
- this.removeListeners_(this.target); |
- }, |
- |
- removeListeners_: function(node) { |
- var options = this.options; |
- if (options.attributes) |
- node.removeEventListener('DOMAttrModified', this, true); |
- |
- if (options.characterData) |
- node.removeEventListener('DOMCharacterDataModified', this, true); |
- |
- if (options.childList) |
- node.removeEventListener('DOMNodeInserted', this, true); |
- |
- if (options.childList || options.subtree) |
- node.removeEventListener('DOMNodeRemoved', this, true); |
- }, |
- |
- /** |
- * Adds a transient observer on node. The transient observer gets removed |
- * next time we deliver the change records. |
- * @param {Node} node |
- */ |
- addTransientObserver: function(node) { |
- // Don't add transient observers on the target itself. We already have all |
- // the required listeners set up on the target. |
- if (node === this.target) |
- return; |
- |
- this.addListeners_(node); |
- this.transientObservedNodes.push(node); |
- var registrations = registrationsTable.get(node); |
- if (!registrations) |
- registrationsTable.set(node, registrations = []); |
- |
- // We know that registrations does not contain this because we already |
- // checked if node === this.target. |
- registrations.push(this); |
- }, |
- |
- removeTransientObservers: function() { |
- var transientObservedNodes = this.transientObservedNodes; |
- this.transientObservedNodes = []; |
- |
- transientObservedNodes.forEach(function(node) { |
- // Transient observers are never added to the target. |
- this.removeListeners_(node); |
- |
- var registrations = registrationsTable.get(node); |
- for (var i = 0; i < registrations.length; i++) { |
- if (registrations[i] === this) { |
- registrations.splice(i, 1); |
- // Each node can only have one registered observer associated with |
- // this observer. |
- break; |
- } |
- } |
- }, this); |
- }, |
- |
- handleEvent: function(e) { |
- // Stop propagation since we are managing the propagation manually. |
- // This means that other mutation events on the page will not work |
- // correctly but that is by design. |
- e.stopImmediatePropagation(); |
- |
- switch (e.type) { |
- case 'DOMAttrModified': |
- // http://dom.spec.whatwg.org/#concept-mo-queue-attributes |
- |
- var name = e.attrName; |
- var namespace = e.relatedNode.namespaceURI; |
- var target = e.target; |
- |
- // 1. |
- var record = new getRecord('attributes', target); |
- record.attributeName = name; |
- record.attributeNamespace = namespace; |
- |
- // 2. |
- var oldValue = |
- e.attrChange === MutationEvent.ADDITION ? null : e.prevValue; |
- |
- forEachAncestorAndObserverEnqueueRecord(target, function(options) { |
- // 3.1, 4.2 |
- if (!options.attributes) |
- return; |
- |
- // 3.2, 4.3 |
- if (options.attributeFilter && options.attributeFilter.length && |
- options.attributeFilter.indexOf(name) === -1 && |
- options.attributeFilter.indexOf(namespace) === -1) { |
- return; |
- } |
- // 3.3, 4.4 |
- if (options.attributeOldValue) |
- return getRecordWithOldValue(oldValue); |
- |
- // 3.4, 4.5 |
- return record; |
- }); |
- |
- break; |
- |
- case 'DOMCharacterDataModified': |
- // http://dom.spec.whatwg.org/#concept-mo-queue-characterdata |
- var target = e.target; |
- |
- // 1. |
- var record = getRecord('characterData', target); |
- |
- // 2. |
- var oldValue = e.prevValue; |
- |
- |
- forEachAncestorAndObserverEnqueueRecord(target, function(options) { |
- // 3.1, 4.2 |
- if (!options.characterData) |
- return; |
- |
- // 3.2, 4.3 |
- if (options.characterDataOldValue) |
- return getRecordWithOldValue(oldValue); |
- |
- // 3.3, 4.4 |
- return record; |
- }); |
- |
- break; |
- |
- case 'DOMNodeRemoved': |
- this.addTransientObserver(e.target); |
- // Fall through. |
- case 'DOMNodeInserted': |
- // http://dom.spec.whatwg.org/#concept-mo-queue-childlist |
- var target = e.relatedNode; |
- var changedNode = e.target; |
- var addedNodes, removedNodes; |
- if (e.type === 'DOMNodeInserted') { |
- addedNodes = [changedNode]; |
- removedNodes = []; |
- } else { |
- |
- addedNodes = []; |
- removedNodes = [changedNode]; |
- } |
- var previousSibling = changedNode.previousSibling; |
- var nextSibling = changedNode.nextSibling; |
- |
- // 1. |
- var record = getRecord('childList', target); |
- record.addedNodes = addedNodes; |
- record.removedNodes = removedNodes; |
- record.previousSibling = previousSibling; |
- record.nextSibling = nextSibling; |
- |
- forEachAncestorAndObserverEnqueueRecord(target, function(options) { |
- // 2.1, 3.2 |
- if (!options.childList) |
- return; |
- |
- // 2.2, 3.3 |
- return record; |
- }); |
- |
- } |
- |
- clearRecords(); |
- } |
- }; |
- |
- global.JsMutationObserver = JsMutationObserver; |
- |
- if (!global.MutationObserver) |
- global.MutationObserver = JsMutationObserver; |
- |
- |
-})(this); |
- |
-/* |
- * Copyright 2013 The Polymer Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
-window.HTMLImports = window.HTMLImports || {flags:{}}; |
-/* |
- * Copyright 2013 The Polymer Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- |
- // imports |
- var path = scope.path; |
- var xhr = scope.xhr; |
- var flags = scope.flags; |
- |
- // TODO(sorvell): this loader supports a dynamic list of urls |
- // and an oncomplete callback that is called when the loader is done. |
- // The polyfill currently does *not* need this dynamism or the onComplete |
- // concept. Because of this, the loader could be simplified quite a bit. |
- var Loader = function(onLoad, onComplete) { |
- this.cache = {}; |
- this.onload = onLoad; |
- this.oncomplete = onComplete; |
- this.inflight = 0; |
- this.pending = {}; |
- }; |
- |
- Loader.prototype = { |
- addNodes: function(nodes) { |
- // number of transactions to complete |
- this.inflight += nodes.length; |
- // commence transactions |
- for (var i=0, l=nodes.length, n; (i<l) && (n=nodes[i]); i++) { |
- this.require(n); |
- } |
- // anything to do? |
- this.checkDone(); |
- }, |
- addNode: function(node) { |
- // number of transactions to complete |
- this.inflight++; |
- // commence transactions |
- this.require(node); |
- // anything to do? |
- this.checkDone(); |
- }, |
- require: function(elt) { |
- var url = elt.src || elt.href; |
- // ensure we have a standard url that can be used |
- // reliably for deduping. |
- // TODO(sjmiles): ad-hoc |
- elt.__nodeUrl = url; |
- // deduplication |
- if (!this.dedupe(url, elt)) { |
- // fetch this resource |
- this.fetch(url, elt); |
- } |
- }, |
- dedupe: function(url, elt) { |
- if (this.pending[url]) { |
- // add to list of nodes waiting for inUrl |
- this.pending[url].push(elt); |
- // don't need fetch |
- return true; |
- } |
- var resource; |
- if (this.cache[url]) { |
- this.onload(url, elt, this.cache[url]); |
- // finished this transaction |
- this.tail(); |
- // don't need fetch |
- return true; |
- } |
- // first node waiting for inUrl |
- this.pending[url] = [elt]; |
- // need fetch (not a dupe) |
- return false; |
- }, |
- fetch: function(url, elt) { |
- flags.load && console.log('fetch', url, elt); |
- if (url.match(/^data:/)) { |
- // Handle Data URI Scheme |
- var pieces = url.split(','); |
- var header = pieces[0]; |
- var body = pieces[1]; |
- if(header.indexOf(';base64') > -1) { |
- body = atob(body); |
- } else { |
- body = decodeURIComponent(body); |
- } |
- setTimeout(function() { |
- this.receive(url, elt, null, body); |
- }.bind(this), 0); |
- } else { |
- var receiveXhr = function(err, resource, redirectedUrl) { |
- this.receive(url, elt, err, resource, redirectedUrl); |
- }.bind(this); |
- xhr.load(url, receiveXhr); |
- // TODO(sorvell): blocked on) |
- // https://code.google.com/p/chromium/issues/detail?id=257221 |
- // xhr'ing for a document makes scripts in imports runnable; otherwise |
- // they are not; however, it requires that we have doctype=html in |
- // the import which is unacceptable. This is only needed on Chrome |
- // to avoid the bug above. |
- /* |
- if (isDocumentLink(elt)) { |
- xhr.loadDocument(url, receiveXhr); |
- } else { |
- xhr.load(url, receiveXhr); |
- } |
- */ |
- } |
- }, |
- receive: function(url, elt, err, resource, redirectedUrl) { |
- this.cache[url] = resource; |
- var $p = this.pending[url]; |
- if ( redirectedUrl && redirectedUrl !== url ) { |
- this.cache[redirectedUrl] = resource; |
- $p = $p.concat(this.pending[redirectedUrl]); |
- } |
- for (var i=0, l=$p.length, p; (i<l) && (p=$p[i]); i++) { |
- //if (!err) { |
- // If url was redirected, use the redirected location so paths are |
- // calculated relative to that. |
- this.onload(redirectedUrl || url, p, resource); |
- //} |
- this.tail(); |
- } |
- this.pending[url] = null; |
- if ( redirectedUrl && redirectedUrl !== url ) { |
- this.pending[redirectedUrl] = null; |
- } |
- }, |
- tail: function() { |
- --this.inflight; |
- this.checkDone(); |
- }, |
- checkDone: function() { |
- if (!this.inflight) { |
- this.oncomplete(); |
- } |
- } |
- }; |
- |
- xhr = xhr || { |
- async: true, |
- ok: function(request) { |
- return (request.status >= 200 && request.status < 300) |
- || (request.status === 304) |
- || (request.status === 0); |
- }, |
- load: function(url, next, nextContext) { |
- var request = new XMLHttpRequest(); |
- if (scope.flags.debug || scope.flags.bust) { |
- url += '?' + Math.random(); |
- } |
- request.open('GET', url, xhr.async); |
- request.addEventListener('readystatechange', function(e) { |
- if (request.readyState === 4) { |
- // Servers redirecting an import can add a Location header to help us |
- // polyfill correctly. |
- var locationHeader = request.getResponseHeader("Location"); |
- var redirectedUrl = null; |
- if (locationHeader) { |
- var redirectedUrl = (locationHeader.substr( 0, 1 ) === "/") |
- ? location.origin + locationHeader // Location is a relative path |
- : redirectedUrl; // Full path |
- } |
- next.call(nextContext, !xhr.ok(request) && request, |
- request.response || request.responseText, redirectedUrl); |
- } |
- }); |
- request.send(); |
- return request; |
- }, |
- loadDocument: function(url, next, nextContext) { |
- this.load(url, next, nextContext).responseType = 'document'; |
- } |
- }; |
- |
- // exports |
- scope.xhr = xhr; |
- scope.Loader = Loader; |
- |
-})(window.HTMLImports); |
- |
-/* |
- * Copyright 2013 The Polymer Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- |
-var IMPORT_LINK_TYPE = 'import'; |
-var flags = scope.flags; |
-var isIe = /Trident/.test(navigator.userAgent); |
-// TODO(sorvell): SD polyfill intrusion |
-var mainDoc = window.ShadowDOMPolyfill ? |
- window.ShadowDOMPolyfill.wrapIfNeeded(document) : document; |
- |
-// importParser |
-// highlander object to manage parsing of imports |
-// parses import related elements |
-// and ensures proper parse order |
-// parse order is enforced by crawling the tree and monitoring which elements |
-// have been parsed; async parsing is also supported. |
- |
-// highlander object for parsing a document tree |
-var importParser = { |
- // parse selectors for main document elements |
- documentSelectors: 'link[rel=' + IMPORT_LINK_TYPE + ']', |
- // parse selectors for import document elements |
- importsSelectors: [ |
- 'link[rel=' + IMPORT_LINK_TYPE + ']', |
- 'link[rel=stylesheet]', |
- 'style', |
- 'script:not([type])', |
- 'script[type="text/javascript"]' |
- ].join(','), |
- map: { |
- link: 'parseLink', |
- script: 'parseScript', |
- style: 'parseStyle' |
- }, |
- // try to parse the next import in the tree |
- parseNext: function() { |
- var next = this.nextToParse(); |
- if (next) { |
- this.parse(next); |
- } |
- }, |
- parse: function(elt) { |
- if (this.isParsed(elt)) { |
- flags.parse && console.log('[%s] is already parsed', elt.localName); |
- return; |
- } |
- var fn = this[this.map[elt.localName]]; |
- if (fn) { |
- this.markParsing(elt); |
- fn.call(this, elt); |
- } |
- }, |
- // only 1 element may be parsed at a time; parsing is async so each |
- // parsing implementation must inform the system that parsing is complete |
- // via markParsingComplete. |
- // To prompt the system to parse the next element, parseNext should then be |
- // called. |
- // Note, parseNext used to be included at the end of markParsingComplete, but |
- // we must not do this so that, for example, we can (1) mark parsing complete |
- // then (2) fire an import load event, and then (3) parse the next resource. |
- markParsing: function(elt) { |
- flags.parse && console.log('parsing', elt); |
- this.parsingElement = elt; |
- }, |
- markParsingComplete: function(elt) { |
- elt.__importParsed = true; |
- if (elt.__importElement) { |
- elt.__importElement.__importParsed = true; |
- } |
- this.parsingElement = null; |
- flags.parse && console.log('completed', elt); |
- }, |
- invalidateParse: function(doc) { |
- if (doc && doc.__importLink) { |
- doc.__importParsed = doc.__importLink.__importParsed = false; |
- this.parseSoon(); |
- } |
- }, |
- parseSoon: function() { |
- if (this._parseSoon) { |
- cancelAnimationFrame(this._parseDelay); |
- } |
- var parser = this; |
- this._parseSoon = requestAnimationFrame(function() { |
- parser.parseNext(); |
- }); |
- }, |
- parseImport: function(elt) { |
- // TODO(sorvell): consider if there's a better way to do this; |
- // expose an imports parsing hook; this is needed, for example, by the |
- // CustomElements polyfill. |
- if (HTMLImports.__importsParsingHook) { |
- HTMLImports.__importsParsingHook(elt); |
- } |
- elt.import.__importParsed = true; |
- this.markParsingComplete(elt); |
- // fire load event |
- if (elt.__resource) { |
- elt.dispatchEvent(new CustomEvent('load', {bubbles: false})); |
- } else { |
- elt.dispatchEvent(new CustomEvent('error', {bubbles: false})); |
- } |
- // TODO(sorvell): workaround for Safari addEventListener not working |
- // for elements not in the main document. |
- if (elt.__pending) { |
- var fn; |
- while (elt.__pending.length) { |
- fn = elt.__pending.shift(); |
- if (fn) { |
- fn({target: elt}); |
- } |
- } |
- } |
- this.parseNext(); |
- }, |
- parseLink: function(linkElt) { |
- if (nodeIsImport(linkElt)) { |
- this.parseImport(linkElt); |
- } else { |
- // make href absolute |
- linkElt.href = linkElt.href; |
- this.parseGeneric(linkElt); |
- } |
- }, |
- parseStyle: function(elt) { |
- // TODO(sorvell): style element load event can just not fire so clone styles |
- var src = elt; |
- elt = cloneStyle(elt); |
- elt.__importElement = src; |
- this.parseGeneric(elt); |
- }, |
- parseGeneric: function(elt) { |
- this.trackElement(elt); |
- document.head.appendChild(elt); |
- }, |
- // tracks when a loadable element has loaded |
- trackElement: function(elt, callback) { |
- var self = this; |
- var done = function(e) { |
- if (callback) { |
- callback(e); |
- } |
- self.markParsingComplete(elt); |
- self.parseNext(); |
- }; |
- elt.addEventListener('load', done); |
- elt.addEventListener('error', done); |
- |
- // NOTE: IE does not fire "load" event for styles that have already loaded |
- // This is in violation of the spec, so we try our hardest to work around it |
- if (isIe && elt.localName === 'style') { |
- var fakeLoad = false; |
- // If there's not @import in the textContent, assume it has loaded |
- if (elt.textContent.indexOf('@import') == -1) { |
- fakeLoad = true; |
- // if we have a sheet, we have been parsed |
- } else if (elt.sheet) { |
- fakeLoad = true; |
- var csr = elt.sheet.cssRules; |
- var len = csr ? csr.length : 0; |
- // search the rules for @import's |
- for (var i = 0, r; (i < len) && (r = csr[i]); i++) { |
- if (r.type === CSSRule.IMPORT_RULE) { |
- // if every @import has resolved, fake the load |
- fakeLoad = fakeLoad && Boolean(r.styleSheet); |
- } |
- } |
- } |
- // dispatch a fake load event and continue parsing |
- if (fakeLoad) { |
- elt.dispatchEvent(new CustomEvent('load', {bubbles: false})); |
- } |
- } |
- }, |
- // NOTE: execute scripts by injecting them and watching for the load/error |
- // event. Inline scripts are handled via dataURL's because browsers tend to |
- // provide correct parsing errors in this case. If this has any compatibility |
- // issues, we can switch to injecting the inline script with textContent. |
- // Scripts with dataURL's do not appear to generate load events and therefore |
- // we assume they execute synchronously. |
- parseScript: function(scriptElt) { |
- var script = document.createElement('script'); |
- script.__importElement = scriptElt; |
- script.src = scriptElt.src ? scriptElt.src : |
- generateScriptDataUrl(scriptElt); |
- scope.currentScript = scriptElt; |
- this.trackElement(script, function(e) { |
- script.parentNode.removeChild(script); |
- scope.currentScript = null; |
- }); |
- document.head.appendChild(script); |
- }, |
- // determine the next element in the tree which should be parsed |
- nextToParse: function() { |
- return !this.parsingElement && this.nextToParseInDoc(mainDoc); |
- }, |
- nextToParseInDoc: function(doc, link) { |
- var nodes = doc.querySelectorAll(this.parseSelectorsForNode(doc)); |
- for (var i=0, l=nodes.length, p=0, n; (i<l) && (n=nodes[i]); i++) { |
- if (!this.isParsed(n)) { |
- if (this.hasResource(n)) { |
- return nodeIsImport(n) ? this.nextToParseInDoc(n.import, n) : n; |
- } else { |
- return; |
- } |
- } |
- } |
- // all nodes have been parsed, ready to parse import, if any |
- return link; |
- }, |
- // return the set of parse selectors relevant for this node. |
- parseSelectorsForNode: function(node) { |
- var doc = node.ownerDocument || node; |
- return doc === mainDoc ? this.documentSelectors : this.importsSelectors; |
- }, |
- isParsed: function(node) { |
- return node.__importParsed; |
- }, |
- hasResource: function(node) { |
- if (nodeIsImport(node) && !node.import) { |
- return false; |
- } |
- return true; |
- } |
-}; |
- |
-function nodeIsImport(elt) { |
- return (elt.localName === 'link') && (elt.rel === IMPORT_LINK_TYPE); |
-} |
- |
-function generateScriptDataUrl(script) { |
- var scriptContent = generateScriptContent(script); |
- var b64 = 'data:text/javascript'; |
- // base64 may be smaller, but does not handle unicode characters |
- // attempt base64 first, fall back to escaped text |
- try { |
- b64 += (';base64,' + btoa(scriptContent)); |
- } catch(e) { |
- b64 += (';charset=utf-8,' + encodeURIComponent(scriptContent)); |
- } |
- return b64; |
-} |
- |
-function generateScriptContent(script) { |
- return script.textContent + generateSourceMapHint(script); |
-} |
- |
-// calculate source map hint |
-function generateSourceMapHint(script) { |
- var moniker = script.__nodeUrl; |
- if (!moniker) { |
- moniker = script.ownerDocument.baseURI; |
- // there could be more than one script this url |
- var tag = '[' + Math.floor((Math.random()+1)*1000) + ']'; |
- // TODO(sjmiles): Polymer hack, should be pluggable if we need to allow |
- // this sort of thing |
- var matches = script.textContent.match(/Polymer\(['"]([^'"]*)/); |
- tag = matches && matches[1] || tag; |
- // tag the moniker |
- moniker += '/' + tag + '.js'; |
- } |
- return '\n//# sourceURL=' + moniker + '\n'; |
-} |
- |
-// style/stylesheet handling |
- |
-// clone style with proper path resolution for main document |
-// NOTE: styles are the only elements that require direct path fixup. |
-function cloneStyle(style) { |
- var clone = style.ownerDocument.createElement('style'); |
- clone.textContent = style.textContent; |
- path.resolveUrlsInStyle(clone); |
- return clone; |
-} |
- |
-// path fixup: style elements in imports must be made relative to the main |
-// document. We fixup url's in url() and @import. |
-var CSS_URL_REGEXP = /(url\()([^)]*)(\))/g; |
-var CSS_IMPORT_REGEXP = /(@import[\s]+(?!url\())([^;]*)(;)/g; |
- |
-var path = { |
- resolveUrlsInStyle: function(style) { |
- var doc = style.ownerDocument; |
- var resolver = doc.createElement('a'); |
- style.textContent = this.resolveUrlsInCssText(style.textContent, resolver); |
- return style; |
- }, |
- resolveUrlsInCssText: function(cssText, urlObj) { |
- var r = this.replaceUrls(cssText, urlObj, CSS_URL_REGEXP); |
- r = this.replaceUrls(r, urlObj, CSS_IMPORT_REGEXP); |
- return r; |
- }, |
- replaceUrls: function(text, urlObj, regexp) { |
- return text.replace(regexp, function(m, pre, url, post) { |
- var urlPath = url.replace(/["']/g, ''); |
- urlObj.href = urlPath; |
- urlPath = urlObj.href; |
- return pre + '\'' + urlPath + '\'' + post; |
- }); |
- } |
-} |
- |
-// exports |
-scope.parser = importParser; |
-scope.path = path; |
-scope.isIE = isIe; |
- |
-})(HTMLImports); |
- |
-/* |
- * Copyright 2013 The Polymer Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- |
-var hasNative = ('import' in document.createElement('link')); |
-var useNative = hasNative; |
-var flags = scope.flags; |
-var IMPORT_LINK_TYPE = 'import'; |
- |
-// TODO(sorvell): SD polyfill intrusion |
-var mainDoc = window.ShadowDOMPolyfill ? |
- ShadowDOMPolyfill.wrapIfNeeded(document) : document; |
- |
-if (!useNative) { |
- |
- // imports |
- var xhr = scope.xhr; |
- var Loader = scope.Loader; |
- var parser = scope.parser; |
- |
- // importer |
- // highlander object to manage loading of imports |
- |
- // for any document, importer: |
- // - loads any linked import documents (with deduping) |
- |
- var importer = { |
- documents: {}, |
- // nodes to load in the mian document |
- documentPreloadSelectors: 'link[rel=' + IMPORT_LINK_TYPE + ']', |
- // nodes to load in imports |
- importsPreloadSelectors: [ |
- 'link[rel=' + IMPORT_LINK_TYPE + ']' |
- ].join(','), |
- loadNode: function(node) { |
- importLoader.addNode(node); |
- }, |
- // load all loadable elements within the parent element |
- loadSubtree: function(parent) { |
- var nodes = this.marshalNodes(parent); |
- // add these nodes to loader's queue |
- importLoader.addNodes(nodes); |
- }, |
- marshalNodes: function(parent) { |
- // all preloadable nodes in inDocument |
- return parent.querySelectorAll(this.loadSelectorsForNode(parent)); |
- }, |
- // find the proper set of load selectors for a given node |
- loadSelectorsForNode: function(node) { |
- var doc = node.ownerDocument || node; |
- return doc === mainDoc ? this.documentPreloadSelectors : |
- this.importsPreloadSelectors; |
- }, |
- loaded: function(url, elt, resource) { |
- flags.load && console.log('loaded', url, elt); |
- // store generic resource |
- // TODO(sorvell): fails for nodes inside <template>.content |
- // see https://code.google.com/p/chromium/issues/detail?id=249381. |
- elt.__resource = resource; |
- if (isDocumentLink(elt)) { |
- var doc = this.documents[url]; |
- // if we've never seen a document at this url |
- if (!doc) { |
- // generate an HTMLDocument from data |
- doc = makeDocument(resource, url); |
- doc.__importLink = elt; |
- // TODO(sorvell): we cannot use MO to detect parsed nodes because |
- // SD polyfill does not report these as mutations. |
- this.bootDocument(doc); |
- // cache document |
- this.documents[url] = doc; |
- } |
- // don't store import record until we're actually loaded |
- // store document resource |
- elt.import = doc; |
- } |
- parser.parseNext(); |
- }, |
- bootDocument: function(doc) { |
- this.loadSubtree(doc); |
- this.observe(doc); |
- parser.parseNext(); |
- }, |
- loadedAll: function() { |
- parser.parseNext(); |
- } |
- }; |
- |
- // loader singleton |
- var importLoader = new Loader(importer.loaded.bind(importer), |
- importer.loadedAll.bind(importer)); |
- |
- function isDocumentLink(elt) { |
- return isLinkRel(elt, IMPORT_LINK_TYPE); |
- } |
- |
- function isLinkRel(elt, rel) { |
- return elt.localName === 'link' && elt.getAttribute('rel') === rel; |
- } |
- |
- function isScript(elt) { |
- return elt.localName === 'script'; |
- } |
- |
- function makeDocument(resource, url) { |
- // create a new HTML document |
- var doc = resource; |
- if (!(doc instanceof Document)) { |
- doc = document.implementation.createHTMLDocument(IMPORT_LINK_TYPE); |
- } |
- // cache the new document's source url |
- doc._URL = url; |
- // establish a relative path via <base> |
- var base = doc.createElement('base'); |
- base.setAttribute('href', url); |
- // add baseURI support to browsers (IE) that lack it. |
- if (!doc.baseURI) { |
- doc.baseURI = url; |
- } |
- // ensure UTF-8 charset |
- var meta = doc.createElement('meta'); |
- meta.setAttribute('charset', 'utf-8'); |
- |
- doc.head.appendChild(meta); |
- doc.head.appendChild(base); |
- // install HTML last as it may trigger CustomElement upgrades |
- // TODO(sjmiles): problem wrt to template boostrapping below, |
- // template bootstrapping must (?) come before element upgrade |
- // but we cannot bootstrap templates until they are in a document |
- // which is too late |
- if (!(resource instanceof Document)) { |
- // install html |
- doc.body.innerHTML = resource; |
- } |
- // TODO(sorvell): ideally this code is not aware of Template polyfill, |
- // but for now the polyfill needs help to bootstrap these templates |
- if (window.HTMLTemplateElement && HTMLTemplateElement.bootstrap) { |
- HTMLTemplateElement.bootstrap(doc); |
- } |
- return doc; |
- } |
-} else { |
- // do nothing if using native imports |
- var importer = {}; |
-} |
- |
-// NOTE: We cannot polyfill document.currentScript because it's not possible |
-// both to override and maintain the ability to capture the native value; |
-// therefore we choose to expose _currentScript both when native imports |
-// and the polyfill are in use. |
-var currentScriptDescriptor = { |
- get: function() { |
- return HTMLImports.currentScript || document.currentScript; |
- }, |
- configurable: true |
-}; |
- |
-Object.defineProperty(document, '_currentScript', currentScriptDescriptor); |
-Object.defineProperty(mainDoc, '_currentScript', currentScriptDescriptor); |
- |
-// Polyfill document.baseURI for browsers without it. |
-if (!document.baseURI) { |
- var baseURIDescriptor = { |
- get: function() { |
- return window.location.href; |
- }, |
- configurable: true |
- }; |
- |
- Object.defineProperty(document, 'baseURI', baseURIDescriptor); |
- Object.defineProperty(mainDoc, 'baseURI', baseURIDescriptor); |
-} |
- |
-// call a callback when all HTMLImports in the document at call (or at least |
-// document ready) time have loaded. |
-// 1. ensure the document is in a ready state (has dom), then |
-// 2. watch for loading of imports and call callback when done |
-function whenImportsReady(callback, doc) { |
- doc = doc || mainDoc; |
- // if document is loading, wait and try again |
- whenDocumentReady(function() { |
- watchImportsLoad(callback, doc); |
- }, doc); |
-} |
- |
-// call the callback when the document is in a ready state (has dom) |
-var requiredReadyState = HTMLImports.isIE ? 'complete' : 'interactive'; |
-var READY_EVENT = 'readystatechange'; |
-function isDocumentReady(doc) { |
- return (doc.readyState === 'complete' || |
- doc.readyState === requiredReadyState); |
-} |
- |
-// call <callback> when we ensure the document is in a ready state |
-function whenDocumentReady(callback, doc) { |
- if (!isDocumentReady(doc)) { |
- var checkReady = function() { |
- if (doc.readyState === 'complete' || |
- doc.readyState === requiredReadyState) { |
- doc.removeEventListener(READY_EVENT, checkReady); |
- whenDocumentReady(callback, doc); |
- } |
- } |
- doc.addEventListener(READY_EVENT, checkReady); |
- } else if (callback) { |
- callback(); |
- } |
-} |
- |
-// call <callback> when we ensure all imports have loaded |
-function watchImportsLoad(callback, doc) { |
- var imports = doc.querySelectorAll('link[rel=import]'); |
- var loaded = 0, l = imports.length; |
- function checkDone(d) { |
- if (loaded == l) { |
- callback && callback(); |
- } |
- } |
- function loadedImport(e) { |
- loaded++; |
- checkDone(); |
- } |
- if (l) { |
- for (var i=0, imp; (i<l) && (imp=imports[i]); i++) { |
- if (isImportLoaded(imp)) { |
- loadedImport.call(imp); |
- } else { |
- imp.addEventListener('load', loadedImport); |
- imp.addEventListener('error', loadedImport); |
- } |
- } |
- } else { |
- checkDone(); |
- } |
-} |
- |
-function isImportLoaded(link) { |
- return useNative ? (link.import && (link.import.readyState !== 'loading')) || link.__loaded : |
- link.__importParsed; |
-} |
- |
-// TODO(sorvell): install a mutation observer to see if HTMLImports have loaded |
-// this is a workaround for https://www.w3.org/Bugs/Public/show_bug.cgi?id=25007 |
-// and should be removed when this bug is addressed. |
-if (useNative) { |
- new MutationObserver(function(mxns) { |
- for (var i=0, l=mxns.length, m; (i < l) && (m=mxns[i]); i++) { |
- if (m.addedNodes) { |
- handleImports(m.addedNodes); |
- } |
- } |
- }).observe(document.head, {childList: true}); |
- |
- function handleImports(nodes) { |
- for (var i=0, l=nodes.length, n; (i<l) && (n=nodes[i]); i++) { |
- if (isImport(n)) { |
- handleImport(n); |
- } |
- } |
- } |
- |
- function isImport(element) { |
- return element.localName === 'link' && element.rel === 'import'; |
- } |
- |
- function handleImport(element) { |
- var loaded = element.import; |
- if (loaded) { |
- markTargetLoaded({target: element}); |
- } else { |
- element.addEventListener('load', markTargetLoaded); |
- element.addEventListener('error', markTargetLoaded); |
- } |
- } |
- |
- function markTargetLoaded(event) { |
- event.target.__loaded = true; |
- } |
- |
-} |
- |
-// exports |
-scope.hasNative = hasNative; |
-scope.useNative = useNative; |
-scope.importer = importer; |
-scope.IMPORT_LINK_TYPE = IMPORT_LINK_TYPE; |
-scope.isImportLoaded = isImportLoaded; |
-scope.importLoader = importLoader; |
-scope.whenReady = whenImportsReady; |
- |
-// deprecated |
-scope.whenImportsReady = whenImportsReady; |
- |
-})(window.HTMLImports); |
- |
- /* |
-Copyright 2013 The Polymer Authors. All rights reserved. |
-Use of this source code is governed by a BSD-style |
-license that can be found in the LICENSE file. |
-*/ |
- |
-(function(scope){ |
- |
-var IMPORT_LINK_TYPE = scope.IMPORT_LINK_TYPE; |
-var importSelector = 'link[rel=' + IMPORT_LINK_TYPE + ']'; |
-var importer = scope.importer; |
-var parser = scope.parser; |
- |
-// we track mutations for addedNodes, looking for imports |
-function handler(mutations) { |
- for (var i=0, l=mutations.length, m; (i<l) && (m=mutations[i]); i++) { |
- if (m.type === 'childList' && m.addedNodes.length) { |
- addedNodes(m.addedNodes); |
- } |
- } |
-} |
- |
-// find loadable elements and add them to the importer |
-function addedNodes(nodes) { |
- var owner; |
- for (var i=0, l=nodes.length, n; (i<l) && (n=nodes[i]); i++) { |
- owner = owner || n.ownerDocument; |
- if (shouldLoadNode(n)) { |
- importer.loadNode(n); |
- } |
- if (n.children && n.children.length) { |
- addedNodes(n.children); |
- } |
- } |
- // TODO(sorvell): This is not the right approach here. We shouldn't need to |
- // invalidate parsing when an element is added. Disabling this code |
- // until a better approach is found. |
- /* |
- if (owner) { |
- parser.invalidateParse(owner); |
- } |
- */ |
-} |
- |
-function shouldLoadNode(node) { |
- return (node.nodeType === 1) && matches.call(node, |
- importer.loadSelectorsForNode(node)); |
-} |
- |
-// x-plat matches |
-var matches = HTMLElement.prototype.matches || |
- HTMLElement.prototype.matchesSelector || |
- HTMLElement.prototype.webkitMatchesSelector || |
- HTMLElement.prototype.mozMatchesSelector || |
- HTMLElement.prototype.msMatchesSelector; |
- |
-var observer = new MutationObserver(handler); |
- |
-// observe the given root for loadable elements |
-function observe(root) { |
- observer.observe(root, {childList: true, subtree: true}); |
-} |
- |
-// exports |
-// TODO(sorvell): factor so can put on scope |
-scope.observe = observe; |
-importer.observe = observe; |
- |
-})(HTMLImports); |
- |
-/* |
- * Copyright 2013 The Polymer Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
-(function(){ |
- |
-// bootstrap |
- |
-// IE shim for CustomEvent |
-if (typeof window.CustomEvent !== 'function') { |
- window.CustomEvent = function(inType, dictionary) { |
- var e = document.createEvent('HTMLEvents'); |
- e.initEvent(inType, |
- dictionary.bubbles === false ? false : true, |
- dictionary.cancelable === false ? false : true, |
- dictionary.detail); |
- return e; |
- }; |
-} |
- |
-// TODO(sorvell): SD polyfill intrusion |
-var doc = window.ShadowDOMPolyfill ? |
- window.ShadowDOMPolyfill.wrapIfNeeded(document) : document; |
- |
-// Fire the 'HTMLImportsLoaded' event when imports in document at load time |
-// have loaded. This event is required to simulate the script blocking |
-// behavior of native imports. A main document script that needs to be sure |
-// imports have loaded should wait for this event. |
-HTMLImports.whenImportsReady(function() { |
- HTMLImports.ready = true; |
- HTMLImports.readyTime = new Date().getTime(); |
- doc.dispatchEvent( |
- new CustomEvent('HTMLImportsLoaded', {bubbles: true}) |
- ); |
-}); |
- |
- |
-// no need to bootstrap the polyfill when native imports is available. |
-if (!HTMLImports.useNative) { |
- function bootstrap() { |
- HTMLImports.importer.bootDocument(doc); |
- } |
- |
- // TODO(sorvell): SD polyfill does *not* generate mutations for nodes added |
- // by the parser. For this reason, we must wait until the dom exists to |
- // bootstrap. |
- if (document.readyState === 'complete' || |
- (document.readyState === 'interactive' && !window.attachEvent)) { |
- bootstrap(); |
- } else { |
- document.addEventListener('DOMContentLoaded', bootstrap); |
- } |
-} |
- |
-})(); |
- |
-/* |
- * Copyright 2013 The Polymer Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
-window.CustomElements = window.CustomElements || {flags:{}}; |
- /* |
-Copyright 2013 The Polymer Authors. All rights reserved. |
-Use of this source code is governed by a BSD-style |
-license that can be found in the LICENSE file. |
-*/ |
- |
-(function(scope){ |
- |
-var logFlags = window.logFlags || {}; |
-var IMPORT_LINK_TYPE = window.HTMLImports ? HTMLImports.IMPORT_LINK_TYPE : 'none'; |
- |
-// walk the subtree rooted at node, applying 'find(element, data)' function |
-// to each element |
-// if 'find' returns true for 'element', do not search element's subtree |
-function findAll(node, find, data) { |
- var e = node.firstElementChild; |
- if (!e) { |
- e = node.firstChild; |
- while (e && e.nodeType !== Node.ELEMENT_NODE) { |
- e = e.nextSibling; |
- } |
- } |
- while (e) { |
- if (find(e, data) !== true) { |
- findAll(e, find, data); |
- } |
- e = e.nextElementSibling; |
- } |
- return null; |
-} |
- |
-// walk all shadowRoots on a given node. |
-function forRoots(node, cb) { |
- var root = node.shadowRoot; |
- while(root) { |
- forSubtree(root, cb); |
- root = root.olderShadowRoot; |
- } |
-} |
- |
-// walk the subtree rooted at node, including descent into shadow-roots, |
-// applying 'cb' to each element |
-function forSubtree(node, cb) { |
- //logFlags.dom && node.childNodes && node.childNodes.length && console.group('subTree: ', node); |
- findAll(node, function(e) { |
- if (cb(e)) { |
- return true; |
- } |
- forRoots(e, cb); |
- }); |
- forRoots(node, cb); |
- //logFlags.dom && node.childNodes && node.childNodes.length && console.groupEnd(); |
-} |
- |
-// manage lifecycle on added node |
-function added(node) { |
- if (upgrade(node)) { |
- insertedNode(node); |
- return true; |
- } |
- inserted(node); |
-} |
- |
-// manage lifecycle on added node's subtree only |
-function addedSubtree(node) { |
- forSubtree(node, function(e) { |
- if (added(e)) { |
- return true; |
- } |
- }); |
-} |
- |
-// manage lifecycle on added node and it's subtree |
-function addedNode(node) { |
- return added(node) || addedSubtree(node); |
-} |
- |
-// upgrade custom elements at node, if applicable |
-function upgrade(node) { |
- if (!node.__upgraded__ && node.nodeType === Node.ELEMENT_NODE) { |
- var type = node.getAttribute('is') || node.localName; |
- var definition = scope.registry[type]; |
- if (definition) { |
- logFlags.dom && console.group('upgrade:', node.localName); |
- scope.upgrade(node); |
- logFlags.dom && console.groupEnd(); |
- return true; |
- } |
- } |
-} |
- |
-function insertedNode(node) { |
- inserted(node); |
- if (inDocument(node)) { |
- forSubtree(node, function(e) { |
- inserted(e); |
- }); |
- } |
-} |
- |
-// TODO(sorvell): on platforms without MutationObserver, mutations may not be |
-// reliable and therefore attached/detached are not reliable. |
-// To make these callbacks less likely to fail, we defer all inserts and removes |
-// to give a chance for elements to be inserted into dom. |
-// This ensures attachedCallback fires for elements that are created and |
-// immediately added to dom. |
-var hasPolyfillMutations = (!window.MutationObserver || |
- (window.MutationObserver === window.JsMutationObserver)); |
-scope.hasPolyfillMutations = hasPolyfillMutations; |
- |
-var isPendingMutations = false; |
-var pendingMutations = []; |
-function deferMutation(fn) { |
- pendingMutations.push(fn); |
- if (!isPendingMutations) { |
- isPendingMutations = true; |
- var async = (window.Platform && window.Platform.endOfMicrotask) || |
- setTimeout; |
- async(takeMutations); |
- } |
-} |
- |
-function takeMutations() { |
- isPendingMutations = false; |
- var $p = pendingMutations; |
- for (var i=0, l=$p.length, p; (i<l) && (p=$p[i]); i++) { |
- p(); |
- } |
- pendingMutations = []; |
-} |
- |
-function inserted(element) { |
- if (hasPolyfillMutations) { |
- deferMutation(function() { |
- _inserted(element); |
- }); |
- } else { |
- _inserted(element); |
- } |
-} |
- |
-// TODO(sjmiles): if there are descents into trees that can never have inDocument(*) true, fix this |
-function _inserted(element) { |
- // TODO(sjmiles): it's possible we were inserted and removed in the space |
- // of one microtask, in which case we won't be 'inDocument' here |
- // But there are other cases where we are testing for inserted without |
- // specific knowledge of mutations, and must test 'inDocument' to determine |
- // whether to call inserted |
- // If we can factor these cases into separate code paths we can have |
- // better diagnostics. |
- // TODO(sjmiles): when logging, do work on all custom elements so we can |
- // track behavior even when callbacks not defined |
- //console.log('inserted: ', element.localName); |
- if (element.attachedCallback || element.detachedCallback || (element.__upgraded__ && logFlags.dom)) { |
- logFlags.dom && console.group('inserted:', element.localName); |
- if (inDocument(element)) { |
- element.__inserted = (element.__inserted || 0) + 1; |
- // if we are in a 'removed' state, bluntly adjust to an 'inserted' state |
- if (element.__inserted < 1) { |
- element.__inserted = 1; |
- } |
- // if we are 'over inserted', squelch the callback |
- if (element.__inserted > 1) { |
- logFlags.dom && console.warn('inserted:', element.localName, |
- 'insert/remove count:', element.__inserted) |
- } else if (element.attachedCallback) { |
- logFlags.dom && console.log('inserted:', element.localName); |
- element.attachedCallback(); |
- } |
- } |
- logFlags.dom && console.groupEnd(); |
- } |
-} |
- |
-function removedNode(node) { |
- removed(node); |
- forSubtree(node, function(e) { |
- removed(e); |
- }); |
-} |
- |
-function removed(element) { |
- if (hasPolyfillMutations) { |
- deferMutation(function() { |
- _removed(element); |
- }); |
- } else { |
- _removed(element); |
- } |
-} |
- |
-function _removed(element) { |
- // TODO(sjmiles): temporary: do work on all custom elements so we can track |
- // behavior even when callbacks not defined |
- if (element.attachedCallback || element.detachedCallback || (element.__upgraded__ && logFlags.dom)) { |
- logFlags.dom && console.group('removed:', element.localName); |
- if (!inDocument(element)) { |
- element.__inserted = (element.__inserted || 0) - 1; |
- // if we are in a 'inserted' state, bluntly adjust to an 'removed' state |
- if (element.__inserted > 0) { |
- element.__inserted = 0; |
- } |
- // if we are 'over removed', squelch the callback |
- if (element.__inserted < 0) { |
- logFlags.dom && console.warn('removed:', element.localName, |
- 'insert/remove count:', element.__inserted) |
- } else if (element.detachedCallback) { |
- element.detachedCallback(); |
- } |
- } |
- logFlags.dom && console.groupEnd(); |
- } |
-} |
- |
-// SD polyfill intrustion due mainly to the fact that 'document' |
-// is not entirely wrapped |
-function wrapIfNeeded(node) { |
- return window.ShadowDOMPolyfill ? ShadowDOMPolyfill.wrapIfNeeded(node) |
- : node; |
-} |
- |
-function inDocument(element) { |
- var p = element; |
- var doc = wrapIfNeeded(document); |
- while (p) { |
- if (p == doc) { |
- return true; |
- } |
- p = p.parentNode || p.host; |
- } |
-} |
- |
-function watchShadow(node) { |
- if (node.shadowRoot && !node.shadowRoot.__watched) { |
- logFlags.dom && console.log('watching shadow-root for: ', node.localName); |
- // watch all unwatched roots... |
- var root = node.shadowRoot; |
- while (root) { |
- watchRoot(root); |
- root = root.olderShadowRoot; |
- } |
- } |
-} |
- |
-function watchRoot(root) { |
- if (!root.__watched) { |
- observe(root); |
- root.__watched = true; |
- } |
-} |
- |
-function handler(mutations) { |
- // |
- if (logFlags.dom) { |
- var mx = mutations[0]; |
- if (mx && mx.type === 'childList' && mx.addedNodes) { |
- if (mx.addedNodes) { |
- var d = mx.addedNodes[0]; |
- while (d && d !== document && !d.host) { |
- d = d.parentNode; |
- } |
- var u = d && (d.URL || d._URL || (d.host && d.host.localName)) || ''; |
- u = u.split('/?').shift().split('/').pop(); |
- } |
- } |
- console.group('mutations (%d) [%s]', mutations.length, u || ''); |
- } |
- // |
- mutations.forEach(function(mx) { |
- //logFlags.dom && console.group('mutation'); |
- if (mx.type === 'childList') { |
- forEach(mx.addedNodes, function(n) { |
- //logFlags.dom && console.log(n.localName); |
- if (!n.localName) { |
- return; |
- } |
- // nodes added may need lifecycle management |
- addedNode(n); |
- }); |
- // removed nodes may need lifecycle management |
- forEach(mx.removedNodes, function(n) { |
- //logFlags.dom && console.log(n.localName); |
- if (!n.localName) { |
- return; |
- } |
- removedNode(n); |
- }); |
- } |
- //logFlags.dom && console.groupEnd(); |
- }); |
- logFlags.dom && console.groupEnd(); |
-}; |
- |
-var observer = new MutationObserver(handler); |
- |
-function takeRecords() { |
- // TODO(sjmiles): ask Raf why we have to call handler ourselves |
- handler(observer.takeRecords()); |
- takeMutations(); |
-} |
- |
-var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach); |
- |
-function observe(inRoot) { |
- observer.observe(inRoot, {childList: true, subtree: true}); |
-} |
- |
-function observeDocument(doc) { |
- observe(doc); |
-} |
- |
-function upgradeDocument(doc) { |
- logFlags.dom && console.group('upgradeDocument: ', (doc.baseURI).split('/').pop()); |
- addedNode(doc); |
- logFlags.dom && console.groupEnd(); |
-} |
- |
-function upgradeDocumentTree(doc) { |
- doc = wrapIfNeeded(doc); |
- //console.log('upgradeDocumentTree: ', (doc.baseURI).split('/').pop()); |
- // upgrade contained imported documents |
- var imports = doc.querySelectorAll('link[rel=' + IMPORT_LINK_TYPE + ']'); |
- for (var i=0, l=imports.length, n; (i<l) && (n=imports[i]); i++) { |
- if (n.import && n.import.__parsed) { |
- upgradeDocumentTree(n.import); |
- } |
- } |
- upgradeDocument(doc); |
-} |
- |
-// exports |
-scope.IMPORT_LINK_TYPE = IMPORT_LINK_TYPE; |
-scope.watchShadow = watchShadow; |
-scope.upgradeDocumentTree = upgradeDocumentTree; |
-scope.upgradeAll = addedNode; |
-scope.upgradeSubtree = addedSubtree; |
-scope.insertedNode = insertedNode; |
- |
-scope.observeDocument = observeDocument; |
-scope.upgradeDocument = upgradeDocument; |
- |
-scope.takeRecords = takeRecords; |
- |
-})(window.CustomElements); |
- |
-/* |
- * Copyright 2013 The Polymer Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-/** |
- * Implements `document.register` |
- * @module CustomElements |
-*/ |
- |
-/** |
- * Polyfilled extensions to the `document` object. |
- * @class Document |
-*/ |
- |
-(function(scope) { |
- |
-// imports |
- |
-if (!scope) { |
- scope = window.CustomElements = {flags:{}}; |
-} |
-var flags = scope.flags; |
- |
-// native document.registerElement? |
- |
-var hasNative = Boolean(document.registerElement); |
-// For consistent timing, use native custom elements only when not polyfilling |
-// other key related web components features. |
-var useNative = !flags.register && hasNative && !window.ShadowDOMPolyfill && (!window.HTMLImports || HTMLImports.useNative); |
- |
-if (useNative) { |
- |
- // stub |
- var nop = function() {}; |
- |
- // exports |
- scope.registry = {}; |
- scope.upgradeElement = nop; |
- |
- scope.watchShadow = nop; |
- scope.upgrade = nop; |
- scope.upgradeAll = nop; |
- scope.upgradeSubtree = nop; |
- scope.observeDocument = nop; |
- scope.upgradeDocument = nop; |
- scope.upgradeDocumentTree = nop; |
- scope.takeRecords = nop; |
- scope.reservedTagList = []; |
- |
-} else { |
- |
- /** |
- * Registers a custom tag name with the document. |
- * |
- * When a registered element is created, a `readyCallback` method is called |
- * in the scope of the element. The `readyCallback` method can be specified on |
- * either `options.prototype` or `options.lifecycle` with the latter taking |
- * precedence. |
- * |
- * @method register |
- * @param {String} name The tag name to register. Must include a dash ('-'), |
- * for example 'x-component'. |
- * @param {Object} options |
- * @param {String} [options.extends] |
- * (_off spec_) Tag name of an element to extend (or blank for a new |
- * element). This parameter is not part of the specification, but instead |
- * is a hint for the polyfill because the extendee is difficult to infer. |
- * Remember that the input prototype must chain to the extended element's |
- * prototype (or HTMLElement.prototype) regardless of the value of |
- * `extends`. |
- * @param {Object} options.prototype The prototype to use for the new |
- * element. The prototype must inherit from HTMLElement. |
- * @param {Object} [options.lifecycle] |
- * Callbacks that fire at important phases in the life of the custom |
- * element. |
- * |
- * @example |
- * FancyButton = document.registerElement("fancy-button", { |
- * extends: 'button', |
- * prototype: Object.create(HTMLButtonElement.prototype, { |
- * readyCallback: { |
- * value: function() { |
- * console.log("a fancy-button was created", |
- * } |
- * } |
- * }) |
- * }); |
- * @return {Function} Constructor for the newly registered type. |
- */ |
- function register(name, options) { |
- //console.warn('document.registerElement("' + name + '", ', options, ')'); |
- // construct a defintion out of options |
- // TODO(sjmiles): probably should clone options instead of mutating it |
- var definition = options || {}; |
- if (!name) { |
- // TODO(sjmiles): replace with more appropriate error (EricB can probably |
- // offer guidance) |
- throw new Error('document.registerElement: first argument `name` must not be empty'); |
- } |
- if (name.indexOf('-') < 0) { |
- // TODO(sjmiles): replace with more appropriate error (EricB can probably |
- // offer guidance) |
- throw new Error('document.registerElement: first argument (\'name\') must contain a dash (\'-\'). Argument provided was \'' + String(name) + '\'.'); |
- } |
- // prevent registering reserved names |
- if (isReservedTag(name)) { |
- throw new Error('Failed to execute \'registerElement\' on \'Document\': Registration failed for type \'' + String(name) + '\'. The type name is invalid.'); |
- } |
- // elements may only be registered once |
- if (getRegisteredDefinition(name)) { |
- throw new Error('DuplicateDefinitionError: a type with name \'' + String(name) + '\' is already registered'); |
- } |
- // must have a prototype, default to an extension of HTMLElement |
- // TODO(sjmiles): probably should throw if no prototype, check spec |
- if (!definition.prototype) { |
- // TODO(sjmiles): replace with more appropriate error (EricB can probably |
- // offer guidance) |
- throw new Error('Options missing required prototype property'); |
- } |
- // record name |
- definition.__name = name.toLowerCase(); |
- // ensure a lifecycle object so we don't have to null test it |
- definition.lifecycle = definition.lifecycle || {}; |
- // build a list of ancestral custom elements (for native base detection) |
- // TODO(sjmiles): we used to need to store this, but current code only |
- // uses it in 'resolveTagName': it should probably be inlined |
- definition.ancestry = ancestry(definition.extends); |
- // extensions of native specializations of HTMLElement require localName |
- // to remain native, and use secondary 'is' specifier for extension type |
- resolveTagName(definition); |
- // some platforms require modifications to the user-supplied prototype |
- // chain |
- resolvePrototypeChain(definition); |
- // overrides to implement attributeChanged callback |
- overrideAttributeApi(definition.prototype); |
- // 7.1.5: Register the DEFINITION with DOCUMENT |
- registerDefinition(definition.__name, definition); |
- // 7.1.7. Run custom element constructor generation algorithm with PROTOTYPE |
- // 7.1.8. Return the output of the previous step. |
- definition.ctor = generateConstructor(definition); |
- definition.ctor.prototype = definition.prototype; |
- // force our .constructor to be our actual constructor |
- definition.prototype.constructor = definition.ctor; |
- // if initial parsing is complete |
- if (scope.ready) { |
- // upgrade any pre-existing nodes of this type |
- scope.upgradeDocumentTree(document); |
- } |
- return definition.ctor; |
- } |
- |
- function isReservedTag(name) { |
- for (var i = 0; i < reservedTagList.length; i++) { |
- if (name === reservedTagList[i]) { |
- return true; |
- } |
- } |
- } |
- |
- var reservedTagList = [ |
- 'annotation-xml', 'color-profile', 'font-face', 'font-face-src', |
- 'font-face-uri', 'font-face-format', 'font-face-name', 'missing-glyph' |
- ]; |
- |
- function ancestry(extnds) { |
- var extendee = getRegisteredDefinition(extnds); |
- if (extendee) { |
- return ancestry(extendee.extends).concat([extendee]); |
- } |
- return []; |
- } |
- |
- function resolveTagName(definition) { |
- // if we are explicitly extending something, that thing is our |
- // baseTag, unless it represents a custom component |
- var baseTag = definition.extends; |
- // if our ancestry includes custom components, we only have a |
- // baseTag if one of them does |
- for (var i=0, a; (a=definition.ancestry[i]); i++) { |
- baseTag = a.is && a.tag; |
- } |
- // our tag is our baseTag, if it exists, and otherwise just our name |
- definition.tag = baseTag || definition.__name; |
- if (baseTag) { |
- // if there is a base tag, use secondary 'is' specifier |
- definition.is = definition.__name; |
- } |
- } |
- |
- function resolvePrototypeChain(definition) { |
- // if we don't support __proto__ we need to locate the native level |
- // prototype for precise mixing in |
- if (!Object.__proto__) { |
- // default prototype |
- var nativePrototype = HTMLElement.prototype; |
- // work out prototype when using type-extension |
- if (definition.is) { |
- var inst = document.createElement(definition.tag); |
- var expectedPrototype = Object.getPrototypeOf(inst); |
- // only set nativePrototype if it will actually appear in the definition's chain |
- if (expectedPrototype === definition.prototype) { |
- nativePrototype = expectedPrototype; |
- } |
- } |
- // ensure __proto__ reference is installed at each point on the prototype |
- // chain. |
- // NOTE: On platforms without __proto__, a mixin strategy is used instead |
- // of prototype swizzling. In this case, this generated __proto__ provides |
- // limited support for prototype traversal. |
- var proto = definition.prototype, ancestor; |
- while (proto && (proto !== nativePrototype)) { |
- ancestor = Object.getPrototypeOf(proto); |
- proto.__proto__ = ancestor; |
- proto = ancestor; |
- } |
- // cache this in case of mixin |
- definition.native = nativePrototype; |
- } |
- } |
- |
- // SECTION 4 |
- |
- function instantiate(definition) { |
- // 4.a.1. Create a new object that implements PROTOTYPE |
- // 4.a.2. Let ELEMENT by this new object |
- // |
- // the custom element instantiation algorithm must also ensure that the |
- // output is a valid DOM element with the proper wrapper in place. |
- // |
- return upgrade(domCreateElement(definition.tag), definition); |
- } |
- |
- function upgrade(element, definition) { |
- // some definitions specify an 'is' attribute |
- if (definition.is) { |
- element.setAttribute('is', definition.is); |
- } |
- // remove 'unresolved' attr, which is a standin for :unresolved. |
- element.removeAttribute('unresolved'); |
- // make 'element' implement definition.prototype |
- implement(element, definition); |
- // flag as upgraded |
- element.__upgraded__ = true; |
- // lifecycle management |
- created(element); |
- // attachedCallback fires in tree order, call before recursing |
- scope.insertedNode(element); |
- // there should never be a shadow root on element at this point |
- scope.upgradeSubtree(element); |
- // OUTPUT |
- return element; |
- } |
- |
- function implement(element, definition) { |
- // prototype swizzling is best |
- if (Object.__proto__) { |
- element.__proto__ = definition.prototype; |
- } else { |
- // where above we can re-acquire inPrototype via |
- // getPrototypeOf(Element), we cannot do so when |
- // we use mixin, so we install a magic reference |
- customMixin(element, definition.prototype, definition.native); |
- element.__proto__ = definition.prototype; |
- } |
- } |
- |
- function customMixin(inTarget, inSrc, inNative) { |
- // TODO(sjmiles): 'used' allows us to only copy the 'youngest' version of |
- // any property. This set should be precalculated. We also need to |
- // consider this for supporting 'super'. |
- var used = {}; |
- // start with inSrc |
- var p = inSrc; |
- // The default is HTMLElement.prototype, so we add a test to avoid mixing in |
- // native prototypes |
- while (p !== inNative && p !== HTMLElement.prototype) { |
- var keys = Object.getOwnPropertyNames(p); |
- for (var i=0, k; k=keys[i]; i++) { |
- if (!used[k]) { |
- Object.defineProperty(inTarget, k, |
- Object.getOwnPropertyDescriptor(p, k)); |
- used[k] = 1; |
- } |
- } |
- p = Object.getPrototypeOf(p); |
- } |
- } |
- |
- function created(element) { |
- // invoke createdCallback |
- if (element.createdCallback) { |
- element.createdCallback(); |
- } |
- } |
- |
- // attribute watching |
- |
- function overrideAttributeApi(prototype) { |
- // overrides to implement callbacks |
- // TODO(sjmiles): should support access via .attributes NamedNodeMap |
- // TODO(sjmiles): preserves user defined overrides, if any |
- if (prototype.setAttribute._polyfilled) { |
- return; |
- } |
- var setAttribute = prototype.setAttribute; |
- prototype.setAttribute = function(name, value) { |
- changeAttribute.call(this, name, value, setAttribute); |
- } |
- var removeAttribute = prototype.removeAttribute; |
- prototype.removeAttribute = function(name) { |
- changeAttribute.call(this, name, null, removeAttribute); |
- } |
- prototype.setAttribute._polyfilled = true; |
- } |
- |
- // https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/custom/ |
- // index.html#dfn-attribute-changed-callback |
- function changeAttribute(name, value, operation) { |
- name = name.toLowerCase(); |
- var oldValue = this.getAttribute(name); |
- operation.apply(this, arguments); |
- var newValue = this.getAttribute(name); |
- if (this.attributeChangedCallback |
- && (newValue !== oldValue)) { |
- this.attributeChangedCallback(name, oldValue, newValue); |
- } |
- } |
- |
- // element registry (maps tag names to definitions) |
- |
- var registry = {}; |
- |
- function getRegisteredDefinition(name) { |
- if (name) { |
- return registry[name.toLowerCase()]; |
- } |
- } |
- |
- function registerDefinition(name, definition) { |
- registry[name] = definition; |
- } |
- |
- function generateConstructor(definition) { |
- return function() { |
- return instantiate(definition); |
- }; |
- } |
- |
- var HTML_NAMESPACE = 'http://www.w3.org/1999/xhtml'; |
- function createElementNS(namespace, tag, typeExtension) { |
- // NOTE: we do not support non-HTML elements, |
- // just call createElementNS for non HTML Elements |
- if (namespace === HTML_NAMESPACE) { |
- return createElement(tag, typeExtension); |
- } else { |
- return domCreateElementNS(namespace, tag); |
- } |
- } |
- |
- function createElement(tag, typeExtension) { |
- // TODO(sjmiles): ignore 'tag' when using 'typeExtension', we could |
- // error check it, or perhaps there should only ever be one argument |
- var definition = getRegisteredDefinition(typeExtension || tag); |
- if (definition) { |
- if (tag == definition.tag && typeExtension == definition.is) { |
- return new definition.ctor(); |
- } |
- // Handle empty string for type extension. |
- if (!typeExtension && !definition.is) { |
- return new definition.ctor(); |
- } |
- } |
- |
- if (typeExtension) { |
- var element = createElement(tag); |
- element.setAttribute('is', typeExtension); |
- return element; |
- } |
- var element = domCreateElement(tag); |
- // Custom tags should be HTMLElements even if not upgraded. |
- if (tag.indexOf('-') >= 0) { |
- implement(element, HTMLElement); |
- } |
- return element; |
- } |
- |
- function upgradeElement(element) { |
- if (!element.__upgraded__ && (element.nodeType === Node.ELEMENT_NODE)) { |
- var is = element.getAttribute('is'); |
- var definition = getRegisteredDefinition(is || element.localName); |
- if (definition) { |
- if (is && definition.tag == element.localName) { |
- return upgrade(element, definition); |
- } else if (!is && !definition.extends) { |
- return upgrade(element, definition); |
- } |
- } |
- } |
- } |
- |
- function cloneNode(deep) { |
- // call original clone |
- var n = domCloneNode.call(this, deep); |
- // upgrade the element and subtree |
- scope.upgradeAll(n); |
- // return the clone |
- return n; |
- } |
- // capture native createElement before we override it |
- |
- var domCreateElement = document.createElement.bind(document); |
- var domCreateElementNS = document.createElementNS.bind(document); |
- |
- // capture native cloneNode before we override it |
- |
- var domCloneNode = Node.prototype.cloneNode; |
- |
- // exports |
- |
- document.registerElement = register; |
- document.createElement = createElement; // override |
- document.createElementNS = createElementNS; // override |
- Node.prototype.cloneNode = cloneNode; // override |
- |
- scope.registry = registry; |
- |
- /** |
- * Upgrade an element to a custom element. Upgrading an element |
- * causes the custom prototype to be applied, an `is` attribute |
- * to be attached (as needed), and invocation of the `readyCallback`. |
- * `upgrade` does nothing if the element is already upgraded, or |
- * if it matches no registered custom tag name. |
- * |
- * @method ugprade |
- * @param {Element} element The element to upgrade. |
- * @return {Element} The upgraded element. |
- */ |
- scope.upgrade = upgradeElement; |
-} |
- |
-// Create a custom 'instanceof'. This is necessary when CustomElements |
-// are implemented via a mixin strategy, as for example on IE10. |
-var isInstance; |
-if (!Object.__proto__ && !useNative) { |
- isInstance = function(obj, ctor) { |
- var p = obj; |
- while (p) { |
- // NOTE: this is not technically correct since we're not checking if |
- // an object is an instance of a constructor; however, this should |
- // be good enough for the mixin strategy. |
- if (p === ctor.prototype) { |
- return true; |
- } |
- p = p.__proto__; |
- } |
- return false; |
- } |
-} else { |
- isInstance = function(obj, base) { |
- return obj instanceof base; |
- } |
-} |
- |
-// exports |
-scope.instanceof = isInstance; |
-scope.reservedTagList = reservedTagList; |
- |
-// bc |
-document.register = document.registerElement; |
- |
-scope.hasNative = hasNative; |
-scope.useNative = useNative; |
- |
-})(window.CustomElements); |
- |
-/* |
- * Copyright 2013 The Polymer Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
- |
-(function(scope) { |
- |
-// import |
- |
-var IMPORT_LINK_TYPE = scope.IMPORT_LINK_TYPE; |
- |
-// highlander object for parsing a document tree |
- |
-var parser = { |
- selectors: [ |
- 'link[rel=' + IMPORT_LINK_TYPE + ']' |
- ], |
- map: { |
- link: 'parseLink' |
- }, |
- parse: function(inDocument) { |
- if (!inDocument.__parsed) { |
- // only parse once |
- inDocument.__parsed = true; |
- // all parsable elements in inDocument (depth-first pre-order traversal) |
- var elts = inDocument.querySelectorAll(parser.selectors); |
- // for each parsable node type, call the mapped parsing method |
- forEach(elts, function(e) { |
- parser[parser.map[e.localName]](e); |
- }); |
- // upgrade all upgradeable static elements, anything dynamically |
- // created should be caught by observer |
- CustomElements.upgradeDocument(inDocument); |
- // observe document for dom changes |
- CustomElements.observeDocument(inDocument); |
- } |
- }, |
- parseLink: function(linkElt) { |
- // imports |
- if (isDocumentLink(linkElt)) { |
- this.parseImport(linkElt); |
- } |
- }, |
- parseImport: function(linkElt) { |
- if (linkElt.import) { |
- parser.parse(linkElt.import); |
- } |
- } |
-}; |
- |
-function isDocumentLink(inElt) { |
- return (inElt.localName === 'link' |
- && inElt.getAttribute('rel') === IMPORT_LINK_TYPE); |
-} |
- |
-var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach); |
- |
-// exports |
- |
-scope.parser = parser; |
-scope.IMPORT_LINK_TYPE = IMPORT_LINK_TYPE; |
- |
-})(window.CustomElements); |
-/* |
- * Copyright 2013 The Polymer Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style |
- * license that can be found in the LICENSE file. |
- */ |
-(function(scope){ |
- |
-// bootstrap parsing |
-function bootstrap() { |
- // parse document |
- CustomElements.parser.parse(document); |
- // one more pass before register is 'live' |
- CustomElements.upgradeDocument(document); |
- // choose async |
- var async = window.Platform && Platform.endOfMicrotask ? |
- Platform.endOfMicrotask : |
- setTimeout; |
- async(function() { |
- // set internal 'ready' flag, now document.registerElement will trigger |
- // synchronous upgrades |
- CustomElements.ready = true; |
- // capture blunt profiling data |
- CustomElements.readyTime = Date.now(); |
- if (window.HTMLImports) { |
- CustomElements.elapsed = CustomElements.readyTime - HTMLImports.readyTime; |
- } |
- // notify the system that we are bootstrapped |
- document.dispatchEvent( |
- new CustomEvent('WebComponentsReady', {bubbles: true}) |
- ); |
- |
- // install upgrade hook if HTMLImports are available |
- if (window.HTMLImports) { |
- HTMLImports.__importsParsingHook = function(elt) { |
- CustomElements.parser.parse(elt.import); |
- } |
- } |
- }); |
-} |
- |
-// CustomEvent shim for IE |
-if (typeof window.CustomEvent !== 'function') { |
- window.CustomEvent = function(inType) { |
- var e = document.createEvent('HTMLEvents'); |
- e.initEvent(inType, true, true); |
- return e; |
- }; |
-} |
- |
-// When loading at readyState complete time (or via flag), boot custom elements |
-// immediately. |
-// If relevant, HTMLImports must already be loaded. |
-if (document.readyState === 'complete' || scope.flags.eager) { |
- bootstrap(); |
-// When loading at readyState interactive time, bootstrap only if HTMLImports |
-// are not pending. Also avoid IE as the semantics of this state are unreliable. |
-} else if (document.readyState === 'interactive' && !window.attachEvent && |
- (!window.HTMLImports || window.HTMLImports.ready)) { |
- bootstrap(); |
-// When loading at other readyStates, wait for the appropriate DOM event to |
-// bootstrap. |
-} else { |
- var loadEvent = window.HTMLImports && !HTMLImports.ready ? |
- 'HTMLImportsLoaded' : 'DOMContentLoaded'; |
- window.addEventListener(loadEvent, bootstrap); |
-} |
- |
-})(window.CustomElements); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function() { |
- |
-if (window.ShadowDOMPolyfill) { |
- |
- // ensure wrapped inputs for these functions |
- var fns = ['upgradeAll', 'upgradeSubtree', 'observeDocument', |
- 'upgradeDocument']; |
- |
- // cache originals |
- var original = {}; |
- fns.forEach(function(fn) { |
- original[fn] = CustomElements[fn]; |
- }); |
- |
- // override |
- fns.forEach(function(fn) { |
- CustomElements[fn] = function(inNode) { |
- return original[fn](wrap(inNode)); |
- }; |
- }); |
- |
-} |
- |
-})(); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- var endOfMicrotask = scope.endOfMicrotask; |
- |
- // Generic url loader |
- function Loader(regex) { |
- this.cache = Object.create(null); |
- this.map = Object.create(null); |
- this.requests = 0; |
- this.regex = regex; |
- } |
- Loader.prototype = { |
- |
- // TODO(dfreedm): there may be a better factoring here |
- // extract absolute urls from the text (full of relative urls) |
- extractUrls: function(text, base) { |
- var matches = []; |
- var matched, u; |
- while ((matched = this.regex.exec(text))) { |
- u = new URL(matched[1], base); |
- matches.push({matched: matched[0], url: u.href}); |
- } |
- return matches; |
- }, |
- // take a text blob, a root url, and a callback and load all the urls found within the text |
- // returns a map of absolute url to text |
- process: function(text, root, callback) { |
- var matches = this.extractUrls(text, root); |
- |
- // every call to process returns all the text this loader has ever received |
- var done = callback.bind(null, this.map); |
- this.fetch(matches, done); |
- }, |
- // build a mapping of url -> text from matches |
- fetch: function(matches, callback) { |
- var inflight = matches.length; |
- |
- // return early if there is no fetching to be done |
- if (!inflight) { |
- return callback(); |
- } |
- |
- // wait for all subrequests to return |
- var done = function() { |
- if (--inflight === 0) { |
- callback(); |
- } |
- }; |
- |
- // start fetching all subrequests |
- var m, req, url; |
- for (var i = 0; i < inflight; i++) { |
- m = matches[i]; |
- url = m.url; |
- req = this.cache[url]; |
- // if this url has already been requested, skip requesting it again |
- if (!req) { |
- req = this.xhr(url); |
- req.match = m; |
- this.cache[url] = req; |
- } |
- // wait for the request to process its subrequests |
- req.wait(done); |
- } |
- }, |
- handleXhr: function(request) { |
- var match = request.match; |
- var url = match.url; |
- |
- // handle errors with an empty string |
- var response = request.response || request.responseText || ''; |
- this.map[url] = response; |
- this.fetch(this.extractUrls(response, url), request.resolve); |
- }, |
- xhr: function(url) { |
- this.requests++; |
- var request = new XMLHttpRequest(); |
- request.open('GET', url, true); |
- request.send(); |
- request.onerror = request.onload = this.handleXhr.bind(this, request); |
- |
- // queue of tasks to run after XHR returns |
- request.pending = []; |
- request.resolve = function() { |
- var pending = request.pending; |
- for(var i = 0; i < pending.length; i++) { |
- pending[i](); |
- } |
- request.pending = null; |
- }; |
- |
- // if we have already resolved, pending is null, async call the callback |
- request.wait = function(fn) { |
- if (request.pending) { |
- request.pending.push(fn); |
- } else { |
- endOfMicrotask(fn); |
- } |
- }; |
- |
- return request; |
- } |
- }; |
- |
- scope.Loader = Loader; |
-})(window.Platform); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- |
-var urlResolver = scope.urlResolver; |
-var Loader = scope.Loader; |
- |
-function StyleResolver() { |
- this.loader = new Loader(this.regex); |
-} |
-StyleResolver.prototype = { |
- regex: /@import\s+(?:url)?["'\(]*([^'"\)]*)['"\)]*;/g, |
- // Recursively replace @imports with the text at that url |
- resolve: function(text, url, callback) { |
- var done = function(map) { |
- callback(this.flatten(text, url, map)); |
- }.bind(this); |
- this.loader.process(text, url, done); |
- }, |
- // resolve the textContent of a style node |
- resolveNode: function(style, url, callback) { |
- var text = style.textContent; |
- var done = function(text) { |
- style.textContent = text; |
- callback(style); |
- }; |
- this.resolve(text, url, done); |
- }, |
- // flatten all the @imports to text |
- flatten: function(text, base, map) { |
- var matches = this.loader.extractUrls(text, base); |
- var match, url, intermediate; |
- for (var i = 0; i < matches.length; i++) { |
- match = matches[i]; |
- url = match.url; |
- // resolve any css text to be relative to the importer, keep absolute url |
- intermediate = urlResolver.resolveCssText(map[url], url, true); |
- // flatten intermediate @imports |
- intermediate = this.flatten(intermediate, base, map); |
- text = text.replace(match.matched, intermediate); |
- } |
- return text; |
- }, |
- loadStyles: function(styles, base, callback) { |
- var loaded=0, l = styles.length; |
- // called in the context of the style |
- function loadedStyle(style) { |
- loaded++; |
- if (loaded === l && callback) { |
- callback(); |
- } |
- } |
- for (var i=0, s; (i<l) && (s=styles[i]); i++) { |
- this.resolveNode(s, base, loadedStyle); |
- } |
- } |
-}; |
- |
-var styleResolver = new StyleResolver(); |
- |
-// exports |
-scope.styleResolver = styleResolver; |
- |
-})(window.Platform); |
- |
-// Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
-// This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
-// The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
-// The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
-// Code distributed by Google as part of the polymer project is also |
-// subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- |
-(function(global) { |
- 'use strict'; |
- |
- var filter = Array.prototype.filter.call.bind(Array.prototype.filter); |
- |
- function getTreeScope(node) { |
- while (node.parentNode) { |
- node = node.parentNode; |
- } |
- |
- return typeof node.getElementById === 'function' ? node : null; |
- } |
- |
- Node.prototype.bind = function(name, observable) { |
- console.error('Unhandled binding to Node: ', this, name, observable); |
- }; |
- |
- Node.prototype.bindFinished = function() {}; |
- |
- function updateBindings(node, name, binding) { |
- var bindings = node.bindings_; |
- if (!bindings) |
- bindings = node.bindings_ = {}; |
- |
- if (bindings[name]) |
- binding[name].close(); |
- |
- return bindings[name] = binding; |
- } |
- |
- function returnBinding(node, name, binding) { |
- return binding; |
- } |
- |
- function sanitizeValue(value) { |
- return value == null ? '' : value; |
- } |
- |
- function updateText(node, value) { |
- node.data = sanitizeValue(value); |
- } |
- |
- function textBinding(node) { |
- return function(value) { |
- return updateText(node, value); |
- }; |
- } |
- |
- var maybeUpdateBindings = returnBinding; |
- |
- Object.defineProperty(Platform, 'enableBindingsReflection', { |
- get: function() { |
- return maybeUpdateBindings === updateBindings; |
- }, |
- set: function(enable) { |
- maybeUpdateBindings = enable ? updateBindings : returnBinding; |
- return enable; |
- }, |
- configurable: true |
- }); |
- |
- Text.prototype.bind = function(name, value, oneTime) { |
- if (name !== 'textContent') |
- return Node.prototype.bind.call(this, name, value, oneTime); |
- |
- if (oneTime) |
- return updateText(this, value); |
- |
- var observable = value; |
- updateText(this, observable.open(textBinding(this))); |
- return maybeUpdateBindings(this, name, observable); |
- } |
- |
- function updateAttribute(el, name, conditional, value) { |
- if (conditional) { |
- if (value) |
- el.setAttribute(name, ''); |
- else |
- el.removeAttribute(name); |
- return; |
- } |
- |
- el.setAttribute(name, sanitizeValue(value)); |
- } |
- |
- function attributeBinding(el, name, conditional) { |
- return function(value) { |
- updateAttribute(el, name, conditional, value); |
- }; |
- } |
- |
- Element.prototype.bind = function(name, value, oneTime) { |
- var conditional = name[name.length - 1] == '?'; |
- if (conditional) { |
- this.removeAttribute(name); |
- name = name.slice(0, -1); |
- } |
- |
- if (oneTime) |
- return updateAttribute(this, name, conditional, value); |
- |
- |
- var observable = value; |
- updateAttribute(this, name, conditional, |
- observable.open(attributeBinding(this, name, conditional))); |
- |
- return maybeUpdateBindings(this, name, observable); |
- }; |
- |
- var checkboxEventType; |
- (function() { |
- // Attempt to feature-detect which event (change or click) is fired first |
- // for checkboxes. |
- var div = document.createElement('div'); |
- var checkbox = div.appendChild(document.createElement('input')); |
- checkbox.setAttribute('type', 'checkbox'); |
- var first; |
- var count = 0; |
- checkbox.addEventListener('click', function(e) { |
- count++; |
- first = first || 'click'; |
- }); |
- checkbox.addEventListener('change', function() { |
- count++; |
- first = first || 'change'; |
- }); |
- |
- var event = document.createEvent('MouseEvent'); |
- event.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0, false, |
- false, false, false, 0, null); |
- checkbox.dispatchEvent(event); |
- // WebKit/Blink don't fire the change event if the element is outside the |
- // document, so assume 'change' for that case. |
- checkboxEventType = count == 1 ? 'change' : first; |
- })(); |
- |
- function getEventForInputType(element) { |
- switch (element.type) { |
- case 'checkbox': |
- return checkboxEventType; |
- case 'radio': |
- case 'select-multiple': |
- case 'select-one': |
- return 'change'; |
- case 'range': |
- if (/Trident|MSIE/.test(navigator.userAgent)) |
- return 'change'; |
- default: |
- return 'input'; |
- } |
- } |
- |
- function updateInput(input, property, value, santizeFn) { |
- input[property] = (santizeFn || sanitizeValue)(value); |
- } |
- |
- function inputBinding(input, property, santizeFn) { |
- return function(value) { |
- return updateInput(input, property, value, santizeFn); |
- } |
- } |
- |
- function noop() {} |
- |
- function bindInputEvent(input, property, observable, postEventFn) { |
- var eventType = getEventForInputType(input); |
- |
- function eventHandler() { |
- observable.setValue(input[property]); |
- observable.discardChanges(); |
- (postEventFn || noop)(input); |
- Platform.performMicrotaskCheckpoint(); |
- } |
- input.addEventListener(eventType, eventHandler); |
- |
- return { |
- close: function() { |
- input.removeEventListener(eventType, eventHandler); |
- observable.close(); |
- }, |
- |
- observable_: observable |
- } |
- } |
- |
- function booleanSanitize(value) { |
- return Boolean(value); |
- } |
- |
- // |element| is assumed to be an HTMLInputElement with |type| == 'radio'. |
- // Returns an array containing all radio buttons other than |element| that |
- // have the same |name|, either in the form that |element| belongs to or, |
- // if no form, in the document tree to which |element| belongs. |
- // |
- // This implementation is based upon the HTML spec definition of a |
- // "radio button group": |
- // http://www.whatwg.org/specs/web-apps/current-work/multipage/number-state.html#radio-button-group |
- // |
- function getAssociatedRadioButtons(element) { |
- if (element.form) { |
- return filter(element.form.elements, function(el) { |
- return el != element && |
- el.tagName == 'INPUT' && |
- el.type == 'radio' && |
- el.name == element.name; |
- }); |
- } else { |
- var treeScope = getTreeScope(element); |
- if (!treeScope) |
- return []; |
- var radios = treeScope.querySelectorAll( |
- 'input[type="radio"][name="' + element.name + '"]'); |
- return filter(radios, function(el) { |
- return el != element && !el.form; |
- }); |
- } |
- } |
- |
- function checkedPostEvent(input) { |
- // Only the radio button that is getting checked gets an event. We |
- // therefore find all the associated radio buttons and update their |
- // check binding manually. |
- if (input.tagName === 'INPUT' && |
- input.type === 'radio') { |
- getAssociatedRadioButtons(input).forEach(function(radio) { |
- var checkedBinding = radio.bindings_.checked; |
- if (checkedBinding) { |
- // Set the value directly to avoid an infinite call stack. |
- checkedBinding.observable_.setValue(false); |
- } |
- }); |
- } |
- } |
- |
- HTMLInputElement.prototype.bind = function(name, value, oneTime) { |
- if (name !== 'value' && name !== 'checked') |
- return HTMLElement.prototype.bind.call(this, name, value, oneTime); |
- |
- this.removeAttribute(name); |
- var sanitizeFn = name == 'checked' ? booleanSanitize : sanitizeValue; |
- var postEventFn = name == 'checked' ? checkedPostEvent : noop; |
- |
- if (oneTime) |
- return updateInput(this, name, value, sanitizeFn); |
- |
- |
- var observable = value; |
- var binding = bindInputEvent(this, name, observable, postEventFn); |
- updateInput(this, name, |
- observable.open(inputBinding(this, name, sanitizeFn)), |
- sanitizeFn); |
- |
- // Checkboxes may need to update bindings of other checkboxes. |
- return updateBindings(this, name, binding); |
- } |
- |
- HTMLTextAreaElement.prototype.bind = function(name, value, oneTime) { |
- if (name !== 'value') |
- return HTMLElement.prototype.bind.call(this, name, value, oneTime); |
- |
- this.removeAttribute('value'); |
- |
- if (oneTime) |
- return updateInput(this, 'value', value); |
- |
- var observable = value; |
- var binding = bindInputEvent(this, 'value', observable); |
- updateInput(this, 'value', |
- observable.open(inputBinding(this, 'value', sanitizeValue))); |
- return maybeUpdateBindings(this, name, binding); |
- } |
- |
- function updateOption(option, value) { |
- var parentNode = option.parentNode;; |
- var select; |
- var selectBinding; |
- var oldValue; |
- if (parentNode instanceof HTMLSelectElement && |
- parentNode.bindings_ && |
- parentNode.bindings_.value) { |
- select = parentNode; |
- selectBinding = select.bindings_.value; |
- oldValue = select.value; |
- } |
- |
- option.value = sanitizeValue(value); |
- |
- if (select && select.value != oldValue) { |
- selectBinding.observable_.setValue(select.value); |
- selectBinding.observable_.discardChanges(); |
- Platform.performMicrotaskCheckpoint(); |
- } |
- } |
- |
- function optionBinding(option) { |
- return function(value) { |
- updateOption(option, value); |
- } |
- } |
- |
- HTMLOptionElement.prototype.bind = function(name, value, oneTime) { |
- if (name !== 'value') |
- return HTMLElement.prototype.bind.call(this, name, value, oneTime); |
- |
- this.removeAttribute('value'); |
- |
- if (oneTime) |
- return updateOption(this, value); |
- |
- var observable = value; |
- var binding = bindInputEvent(this, 'value', observable); |
- updateOption(this, observable.open(optionBinding(this))); |
- return maybeUpdateBindings(this, name, binding); |
- } |
- |
- HTMLSelectElement.prototype.bind = function(name, value, oneTime) { |
- if (name === 'selectedindex') |
- name = 'selectedIndex'; |
- |
- if (name !== 'selectedIndex' && name !== 'value') |
- return HTMLElement.prototype.bind.call(this, name, value, oneTime); |
- |
- this.removeAttribute(name); |
- |
- if (oneTime) |
- return updateInput(this, name, value); |
- |
- var observable = value; |
- var binding = bindInputEvent(this, name, observable); |
- updateInput(this, name, |
- observable.open(inputBinding(this, name))); |
- |
- // Option update events may need to access select bindings. |
- return updateBindings(this, name, binding); |
- } |
-})(this); |
- |
-// Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
-// This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
-// The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
-// The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
-// Code distributed by Google as part of the polymer project is also |
-// subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- |
-(function(global) { |
- 'use strict'; |
- |
- function assert(v) { |
- if (!v) |
- throw new Error('Assertion failed'); |
- } |
- |
- var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach); |
- |
- function getFragmentRoot(node) { |
- var p; |
- while (p = node.parentNode) { |
- node = p; |
- } |
- |
- return node; |
- } |
- |
- function searchRefId(node, id) { |
- if (!id) |
- return; |
- |
- var ref; |
- var selector = '#' + id; |
- while (!ref) { |
- node = getFragmentRoot(node); |
- |
- if (node.protoContent_) |
- ref = node.protoContent_.querySelector(selector); |
- else if (node.getElementById) |
- ref = node.getElementById(id); |
- |
- if (ref || !node.templateCreator_) |
- break |
- |
- node = node.templateCreator_; |
- } |
- |
- return ref; |
- } |
- |
- function getInstanceRoot(node) { |
- while (node.parentNode) { |
- node = node.parentNode; |
- } |
- return node.templateCreator_ ? node : null; |
- } |
- |
- var Map; |
- if (global.Map && typeof global.Map.prototype.forEach === 'function') { |
- Map = global.Map; |
- } else { |
- Map = function() { |
- this.keys = []; |
- this.values = []; |
- }; |
- |
- Map.prototype = { |
- set: function(key, value) { |
- var index = this.keys.indexOf(key); |
- if (index < 0) { |
- this.keys.push(key); |
- this.values.push(value); |
- } else { |
- this.values[index] = value; |
- } |
- }, |
- |
- get: function(key) { |
- var index = this.keys.indexOf(key); |
- if (index < 0) |
- return; |
- |
- return this.values[index]; |
- }, |
- |
- delete: function(key, value) { |
- var index = this.keys.indexOf(key); |
- if (index < 0) |
- return false; |
- |
- this.keys.splice(index, 1); |
- this.values.splice(index, 1); |
- return true; |
- }, |
- |
- forEach: function(f, opt_this) { |
- for (var i = 0; i < this.keys.length; i++) |
- f.call(opt_this || this, this.values[i], this.keys[i], this); |
- } |
- }; |
- } |
- |
- // JScript does not have __proto__. We wrap all object literals with |
- // createObject which uses Object.create, Object.defineProperty and |
- // Object.getOwnPropertyDescriptor to create a new object that does the exact |
- // same thing. The main downside to this solution is that we have to extract |
- // all those property descriptors for IE. |
- var createObject = ('__proto__' in {}) ? |
- function(obj) { return obj; } : |
- function(obj) { |
- var proto = obj.__proto__; |
- if (!proto) |
- return obj; |
- var newObject = Object.create(proto); |
- Object.getOwnPropertyNames(obj).forEach(function(name) { |
- Object.defineProperty(newObject, name, |
- Object.getOwnPropertyDescriptor(obj, name)); |
- }); |
- return newObject; |
- }; |
- |
- // IE does not support have Document.prototype.contains. |
- if (typeof document.contains != 'function') { |
- Document.prototype.contains = function(node) { |
- if (node === this || node.parentNode === this) |
- return true; |
- return this.documentElement.contains(node); |
- } |
- } |
- |
- var BIND = 'bind'; |
- var REPEAT = 'repeat'; |
- var IF = 'if'; |
- |
- var templateAttributeDirectives = { |
- 'template': true, |
- 'repeat': true, |
- 'bind': true, |
- 'ref': true |
- }; |
- |
- var semanticTemplateElements = { |
- 'THEAD': true, |
- 'TBODY': true, |
- 'TFOOT': true, |
- 'TH': true, |
- 'TR': true, |
- 'TD': true, |
- 'COLGROUP': true, |
- 'COL': true, |
- 'CAPTION': true, |
- 'OPTION': true, |
- 'OPTGROUP': true |
- }; |
- |
- var hasTemplateElement = typeof HTMLTemplateElement !== 'undefined'; |
- if (hasTemplateElement) { |
- // TODO(rafaelw): Remove when fix for |
- // https://codereview.chromium.org/164803002/ |
- // makes it to Chrome release. |
- (function() { |
- var t = document.createElement('template'); |
- var d = t.content.ownerDocument; |
- var html = d.appendChild(d.createElement('html')); |
- var head = html.appendChild(d.createElement('head')); |
- var base = d.createElement('base'); |
- base.href = document.baseURI; |
- head.appendChild(base); |
- })(); |
- } |
- |
- var allTemplatesSelectors = 'template, ' + |
- Object.keys(semanticTemplateElements).map(function(tagName) { |
- return tagName.toLowerCase() + '[template]'; |
- }).join(', '); |
- |
- function isSVGTemplate(el) { |
- return el.tagName == 'template' && |
- el.namespaceURI == 'http://www.w3.org/2000/svg'; |
- } |
- |
- function isHTMLTemplate(el) { |
- return el.tagName == 'TEMPLATE' && |
- el.namespaceURI == 'http://www.w3.org/1999/xhtml'; |
- } |
- |
- function isAttributeTemplate(el) { |
- return Boolean(semanticTemplateElements[el.tagName] && |
- el.hasAttribute('template')); |
- } |
- |
- function isTemplate(el) { |
- if (el.isTemplate_ === undefined) |
- el.isTemplate_ = el.tagName == 'TEMPLATE' || isAttributeTemplate(el); |
- |
- return el.isTemplate_; |
- } |
- |
- // FIXME: Observe templates being added/removed from documents |
- // FIXME: Expose imperative API to decorate and observe templates in |
- // "disconnected tress" (e.g. ShadowRoot) |
- document.addEventListener('DOMContentLoaded', function(e) { |
- bootstrapTemplatesRecursivelyFrom(document); |
- // FIXME: Is this needed? Seems like it shouldn't be. |
- Platform.performMicrotaskCheckpoint(); |
- }, false); |
- |
- function forAllTemplatesFrom(node, fn) { |
- var subTemplates = node.querySelectorAll(allTemplatesSelectors); |
- |
- if (isTemplate(node)) |
- fn(node) |
- forEach(subTemplates, fn); |
- } |
- |
- function bootstrapTemplatesRecursivelyFrom(node) { |
- function bootstrap(template) { |
- if (!HTMLTemplateElement.decorate(template)) |
- bootstrapTemplatesRecursivelyFrom(template.content); |
- } |
- |
- forAllTemplatesFrom(node, bootstrap); |
- } |
- |
- if (!hasTemplateElement) { |
- /** |
- * This represents a <template> element. |
- * @constructor |
- * @extends {HTMLElement} |
- */ |
- global.HTMLTemplateElement = function() { |
- throw TypeError('Illegal constructor'); |
- }; |
- } |
- |
- var hasProto = '__proto__' in {}; |
- |
- function mixin(to, from) { |
- Object.getOwnPropertyNames(from).forEach(function(name) { |
- Object.defineProperty(to, name, |
- Object.getOwnPropertyDescriptor(from, name)); |
- }); |
- } |
- |
- // http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html#dfn-template-contents-owner |
- function getOrCreateTemplateContentsOwner(template) { |
- var doc = template.ownerDocument |
- if (!doc.defaultView) |
- return doc; |
- var d = doc.templateContentsOwner_; |
- if (!d) { |
- // TODO(arv): This should either be a Document or HTMLDocument depending |
- // on doc. |
- d = doc.implementation.createHTMLDocument(''); |
- while (d.lastChild) { |
- d.removeChild(d.lastChild); |
- } |
- doc.templateContentsOwner_ = d; |
- } |
- return d; |
- } |
- |
- function getTemplateStagingDocument(template) { |
- if (!template.stagingDocument_) { |
- var owner = template.ownerDocument; |
- if (!owner.stagingDocument_) { |
- owner.stagingDocument_ = owner.implementation.createHTMLDocument(''); |
- owner.stagingDocument_.isStagingDocument = true; |
- // TODO(rafaelw): Remove when fix for |
- // https://codereview.chromium.org/164803002/ |
- // makes it to Chrome release. |
- var base = owner.stagingDocument_.createElement('base'); |
- base.href = document.baseURI; |
- owner.stagingDocument_.head.appendChild(base); |
- |
- owner.stagingDocument_.stagingDocument_ = owner.stagingDocument_; |
- } |
- |
- template.stagingDocument_ = owner.stagingDocument_; |
- } |
- |
- return template.stagingDocument_; |
- } |
- |
- // For non-template browsers, the parser will disallow <template> in certain |
- // locations, so we allow "attribute templates" which combine the template |
- // element with the top-level container node of the content, e.g. |
- // |
- // <tr template repeat="{{ foo }}"" class="bar"><td>Bar</td></tr> |
- // |
- // becomes |
- // |
- // <template repeat="{{ foo }}"> |
- // + #document-fragment |
- // + <tr class="bar"> |
- // + <td>Bar</td> |
- // |
- function extractTemplateFromAttributeTemplate(el) { |
- var template = el.ownerDocument.createElement('template'); |
- el.parentNode.insertBefore(template, el); |
- |
- var attribs = el.attributes; |
- var count = attribs.length; |
- while (count-- > 0) { |
- var attrib = attribs[count]; |
- if (templateAttributeDirectives[attrib.name]) { |
- if (attrib.name !== 'template') |
- template.setAttribute(attrib.name, attrib.value); |
- el.removeAttribute(attrib.name); |
- } |
- } |
- |
- return template; |
- } |
- |
- function extractTemplateFromSVGTemplate(el) { |
- var template = el.ownerDocument.createElement('template'); |
- el.parentNode.insertBefore(template, el); |
- |
- var attribs = el.attributes; |
- var count = attribs.length; |
- while (count-- > 0) { |
- var attrib = attribs[count]; |
- template.setAttribute(attrib.name, attrib.value); |
- el.removeAttribute(attrib.name); |
- } |
- |
- el.parentNode.removeChild(el); |
- return template; |
- } |
- |
- function liftNonNativeTemplateChildrenIntoContent(template, el, useRoot) { |
- var content = template.content; |
- if (useRoot) { |
- content.appendChild(el); |
- return; |
- } |
- |
- var child; |
- while (child = el.firstChild) { |
- content.appendChild(child); |
- } |
- } |
- |
- var templateObserver; |
- if (typeof MutationObserver == 'function') { |
- templateObserver = new MutationObserver(function(records) { |
- for (var i = 0; i < records.length; i++) { |
- records[i].target.refChanged_(); |
- } |
- }); |
- } |
- |
- /** |
- * Ensures proper API and content model for template elements. |
- * @param {HTMLTemplateElement} opt_instanceRef The template element which |
- * |el| template element will return as the value of its ref(), and whose |
- * content will be used as source when createInstance() is invoked. |
- */ |
- HTMLTemplateElement.decorate = function(el, opt_instanceRef) { |
- if (el.templateIsDecorated_) |
- return false; |
- |
- var templateElement = el; |
- templateElement.templateIsDecorated_ = true; |
- |
- var isNativeHTMLTemplate = isHTMLTemplate(templateElement) && |
- hasTemplateElement; |
- var bootstrapContents = isNativeHTMLTemplate; |
- var liftContents = !isNativeHTMLTemplate; |
- var liftRoot = false; |
- |
- if (!isNativeHTMLTemplate) { |
- if (isAttributeTemplate(templateElement)) { |
- assert(!opt_instanceRef); |
- templateElement = extractTemplateFromAttributeTemplate(el); |
- templateElement.templateIsDecorated_ = true; |
- isNativeHTMLTemplate = hasTemplateElement; |
- liftRoot = true; |
- } else if (isSVGTemplate(templateElement)) { |
- templateElement = extractTemplateFromSVGTemplate(el); |
- templateElement.templateIsDecorated_ = true; |
- isNativeHTMLTemplate = hasTemplateElement; |
- } |
- } |
- |
- if (!isNativeHTMLTemplate) { |
- fixTemplateElementPrototype(templateElement); |
- var doc = getOrCreateTemplateContentsOwner(templateElement); |
- templateElement.content_ = doc.createDocumentFragment(); |
- } |
- |
- if (opt_instanceRef) { |
- // template is contained within an instance, its direct content must be |
- // empty |
- templateElement.instanceRef_ = opt_instanceRef; |
- } else if (liftContents) { |
- liftNonNativeTemplateChildrenIntoContent(templateElement, |
- el, |
- liftRoot); |
- } else if (bootstrapContents) { |
- bootstrapTemplatesRecursivelyFrom(templateElement.content); |
- } |
- |
- return true; |
- }; |
- |
- // TODO(rafaelw): This used to decorate recursively all templates from a given |
- // node. This happens by default on 'DOMContentLoaded', but may be needed |
- // in subtrees not descendent from document (e.g. ShadowRoot). |
- // Review whether this is the right public API. |
- HTMLTemplateElement.bootstrap = bootstrapTemplatesRecursivelyFrom; |
- |
- var htmlElement = global.HTMLUnknownElement || HTMLElement; |
- |
- var contentDescriptor = { |
- get: function() { |
- return this.content_; |
- }, |
- enumerable: true, |
- configurable: true |
- }; |
- |
- if (!hasTemplateElement) { |
- // Gecko is more picky with the prototype than WebKit. Make sure to use the |
- // same prototype as created in the constructor. |
- HTMLTemplateElement.prototype = Object.create(htmlElement.prototype); |
- |
- Object.defineProperty(HTMLTemplateElement.prototype, 'content', |
- contentDescriptor); |
- } |
- |
- function fixTemplateElementPrototype(el) { |
- if (hasProto) |
- el.__proto__ = HTMLTemplateElement.prototype; |
- else |
- mixin(el, HTMLTemplateElement.prototype); |
- } |
- |
- function ensureSetModelScheduled(template) { |
- if (!template.setModelFn_) { |
- template.setModelFn_ = function() { |
- template.setModelFnScheduled_ = false; |
- var map = getBindings(template, |
- template.delegate_ && template.delegate_.prepareBinding); |
- processBindings(template, map, template.model_); |
- }; |
- } |
- |
- if (!template.setModelFnScheduled_) { |
- template.setModelFnScheduled_ = true; |
- Observer.runEOM_(template.setModelFn_); |
- } |
- } |
- |
- mixin(HTMLTemplateElement.prototype, { |
- bind: function(name, value, oneTime) { |
- if (name != 'ref') |
- return Element.prototype.bind.call(this, name, value, oneTime); |
- |
- var self = this; |
- var ref = oneTime ? value : value.open(function(ref) { |
- self.setAttribute('ref', ref); |
- self.refChanged_(); |
- }); |
- |
- this.setAttribute('ref', ref); |
- this.refChanged_(); |
- if (oneTime) |
- return; |
- |
- if (!this.bindings_) { |
- this.bindings_ = { ref: value }; |
- } else { |
- this.bindings_.ref = value; |
- } |
- |
- return value; |
- }, |
- |
- processBindingDirectives_: function(directives) { |
- if (this.iterator_) |
- this.iterator_.closeDeps(); |
- |
- if (!directives.if && !directives.bind && !directives.repeat) { |
- if (this.iterator_) { |
- this.iterator_.close(); |
- this.iterator_ = undefined; |
- } |
- |
- return; |
- } |
- |
- if (!this.iterator_) { |
- this.iterator_ = new TemplateIterator(this); |
- } |
- |
- this.iterator_.updateDependencies(directives, this.model_); |
- |
- if (templateObserver) { |
- templateObserver.observe(this, { attributes: true, |
- attributeFilter: ['ref'] }); |
- } |
- |
- return this.iterator_; |
- }, |
- |
- createInstance: function(model, bindingDelegate, delegate_) { |
- if (bindingDelegate) |
- delegate_ = this.newDelegate_(bindingDelegate); |
- else if (!delegate_) |
- delegate_ = this.delegate_; |
- |
- if (!this.refContent_) |
- this.refContent_ = this.ref_.content; |
- var content = this.refContent_; |
- if (content.firstChild === null) |
- return emptyInstance; |
- |
- var map = getInstanceBindingMap(content, delegate_); |
- var stagingDocument = getTemplateStagingDocument(this); |
- var instance = stagingDocument.createDocumentFragment(); |
- instance.templateCreator_ = this; |
- instance.protoContent_ = content; |
- instance.bindings_ = []; |
- instance.terminator_ = null; |
- var instanceRecord = instance.templateInstance_ = { |
- firstNode: null, |
- lastNode: null, |
- model: model |
- }; |
- |
- var i = 0; |
- var collectTerminator = false; |
- for (var child = content.firstChild; child; child = child.nextSibling) { |
- // The terminator of the instance is the clone of the last child of the |
- // content. If the last child is an active template, it may produce |
- // instances as a result of production, so simply collecting the last |
- // child of the instance after it has finished producing may be wrong. |
- if (child.nextSibling === null) |
- collectTerminator = true; |
- |
- var clone = cloneAndBindInstance(child, instance, stagingDocument, |
- map.children[i++], |
- model, |
- delegate_, |
- instance.bindings_); |
- clone.templateInstance_ = instanceRecord; |
- if (collectTerminator) |
- instance.terminator_ = clone; |
- } |
- |
- instanceRecord.firstNode = instance.firstChild; |
- instanceRecord.lastNode = instance.lastChild; |
- instance.templateCreator_ = undefined; |
- instance.protoContent_ = undefined; |
- return instance; |
- }, |
- |
- get model() { |
- return this.model_; |
- }, |
- |
- set model(model) { |
- this.model_ = model; |
- ensureSetModelScheduled(this); |
- }, |
- |
- get bindingDelegate() { |
- return this.delegate_ && this.delegate_.raw; |
- }, |
- |
- refChanged_: function() { |
- if (!this.iterator_ || this.refContent_ === this.ref_.content) |
- return; |
- |
- this.refContent_ = undefined; |
- this.iterator_.valueChanged(); |
- this.iterator_.updateIteratedValue(); |
- }, |
- |
- clear: function() { |
- this.model_ = undefined; |
- this.delegate_ = undefined; |
- if (this.bindings_ && this.bindings_.ref) |
- this.bindings_.ref.close() |
- this.refContent_ = undefined; |
- if (!this.iterator_) |
- return; |
- this.iterator_.valueChanged(); |
- this.iterator_.close() |
- this.iterator_ = undefined; |
- }, |
- |
- setDelegate_: function(delegate) { |
- this.delegate_ = delegate; |
- this.bindingMap_ = undefined; |
- if (this.iterator_) { |
- this.iterator_.instancePositionChangedFn_ = undefined; |
- this.iterator_.instanceModelFn_ = undefined; |
- } |
- }, |
- |
- newDelegate_: function(bindingDelegate) { |
- if (!bindingDelegate) |
- return; |
- |
- function delegateFn(name) { |
- var fn = bindingDelegate && bindingDelegate[name]; |
- if (typeof fn != 'function') |
- return; |
- |
- return function() { |
- return fn.apply(bindingDelegate, arguments); |
- }; |
- } |
- |
- return { |
- bindingMaps: {}, |
- raw: bindingDelegate, |
- prepareBinding: delegateFn('prepareBinding'), |
- prepareInstanceModel: delegateFn('prepareInstanceModel'), |
- prepareInstancePositionChanged: |
- delegateFn('prepareInstancePositionChanged') |
- }; |
- }, |
- |
- set bindingDelegate(bindingDelegate) { |
- if (this.delegate_) { |
- throw Error('Template must be cleared before a new bindingDelegate ' + |
- 'can be assigned'); |
- } |
- |
- this.setDelegate_(this.newDelegate_(bindingDelegate)); |
- }, |
- |
- get ref_() { |
- var ref = searchRefId(this, this.getAttribute('ref')); |
- if (!ref) |
- ref = this.instanceRef_; |
- |
- if (!ref) |
- return this; |
- |
- var nextRef = ref.ref_; |
- return nextRef ? nextRef : ref; |
- } |
- }); |
- |
- // Returns |
- // a) undefined if there are no mustaches. |
- // b) [TEXT, (ONE_TIME?, PATH, DELEGATE_FN, TEXT)+] if there is at least one mustache. |
- function parseMustaches(s, name, node, prepareBindingFn) { |
- if (!s || !s.length) |
- return; |
- |
- var tokens; |
- var length = s.length; |
- var startIndex = 0, lastIndex = 0, endIndex = 0; |
- var onlyOneTime = true; |
- while (lastIndex < length) { |
- var startIndex = s.indexOf('{{', lastIndex); |
- var oneTimeStart = s.indexOf('[[', lastIndex); |
- var oneTime = false; |
- var terminator = '}}'; |
- |
- if (oneTimeStart >= 0 && |
- (startIndex < 0 || oneTimeStart < startIndex)) { |
- startIndex = oneTimeStart; |
- oneTime = true; |
- terminator = ']]'; |
- } |
- |
- endIndex = startIndex < 0 ? -1 : s.indexOf(terminator, startIndex + 2); |
- |
- if (endIndex < 0) { |
- if (!tokens) |
- return; |
- |
- tokens.push(s.slice(lastIndex)); // TEXT |
- break; |
- } |
- |
- tokens = tokens || []; |
- tokens.push(s.slice(lastIndex, startIndex)); // TEXT |
- var pathString = s.slice(startIndex + 2, endIndex).trim(); |
- tokens.push(oneTime); // ONE_TIME? |
- onlyOneTime = onlyOneTime && oneTime; |
- var delegateFn = prepareBindingFn && |
- prepareBindingFn(pathString, name, node); |
- // Don't try to parse the expression if there's a prepareBinding function |
- if (delegateFn == null) { |
- tokens.push(Path.get(pathString)); // PATH |
- } else { |
- tokens.push(null); |
- } |
- tokens.push(delegateFn); // DELEGATE_FN |
- lastIndex = endIndex + 2; |
- } |
- |
- if (lastIndex === length) |
- tokens.push(''); // TEXT |
- |
- tokens.hasOnePath = tokens.length === 5; |
- tokens.isSimplePath = tokens.hasOnePath && |
- tokens[0] == '' && |
- tokens[4] == ''; |
- tokens.onlyOneTime = onlyOneTime; |
- |
- tokens.combinator = function(values) { |
- var newValue = tokens[0]; |
- |
- for (var i = 1; i < tokens.length; i += 4) { |
- var value = tokens.hasOnePath ? values : values[(i - 1) / 4]; |
- if (value !== undefined) |
- newValue += value; |
- newValue += tokens[i + 3]; |
- } |
- |
- return newValue; |
- } |
- |
- return tokens; |
- }; |
- |
- function processOneTimeBinding(name, tokens, node, model) { |
- if (tokens.hasOnePath) { |
- var delegateFn = tokens[3]; |
- var value = delegateFn ? delegateFn(model, node, true) : |
- tokens[2].getValueFrom(model); |
- return tokens.isSimplePath ? value : tokens.combinator(value); |
- } |
- |
- var values = []; |
- for (var i = 1; i < tokens.length; i += 4) { |
- var delegateFn = tokens[i + 2]; |
- values[(i - 1) / 4] = delegateFn ? delegateFn(model, node) : |
- tokens[i + 1].getValueFrom(model); |
- } |
- |
- return tokens.combinator(values); |
- } |
- |
- function processSinglePathBinding(name, tokens, node, model) { |
- var delegateFn = tokens[3]; |
- var observer = delegateFn ? delegateFn(model, node, false) : |
- new PathObserver(model, tokens[2]); |
- |
- return tokens.isSimplePath ? observer : |
- new ObserverTransform(observer, tokens.combinator); |
- } |
- |
- function processBinding(name, tokens, node, model) { |
- if (tokens.onlyOneTime) |
- return processOneTimeBinding(name, tokens, node, model); |
- |
- if (tokens.hasOnePath) |
- return processSinglePathBinding(name, tokens, node, model); |
- |
- var observer = new CompoundObserver(); |
- |
- for (var i = 1; i < tokens.length; i += 4) { |
- var oneTime = tokens[i]; |
- var delegateFn = tokens[i + 2]; |
- |
- if (delegateFn) { |
- var value = delegateFn(model, node, oneTime); |
- if (oneTime) |
- observer.addPath(value) |
- else |
- observer.addObserver(value); |
- continue; |
- } |
- |
- var path = tokens[i + 1]; |
- if (oneTime) |
- observer.addPath(path.getValueFrom(model)) |
- else |
- observer.addPath(model, path); |
- } |
- |
- return new ObserverTransform(observer, tokens.combinator); |
- } |
- |
- function processBindings(node, bindings, model, instanceBindings) { |
- for (var i = 0; i < bindings.length; i += 2) { |
- var name = bindings[i] |
- var tokens = bindings[i + 1]; |
- var value = processBinding(name, tokens, node, model); |
- var binding = node.bind(name, value, tokens.onlyOneTime); |
- if (binding && instanceBindings) |
- instanceBindings.push(binding); |
- } |
- |
- node.bindFinished(); |
- if (!bindings.isTemplate) |
- return; |
- |
- node.model_ = model; |
- var iter = node.processBindingDirectives_(bindings); |
- if (instanceBindings && iter) |
- instanceBindings.push(iter); |
- } |
- |
- function parseWithDefault(el, name, prepareBindingFn) { |
- var v = el.getAttribute(name); |
- return parseMustaches(v == '' ? '{{}}' : v, name, el, prepareBindingFn); |
- } |
- |
- function parseAttributeBindings(element, prepareBindingFn) { |
- assert(element); |
- |
- var bindings = []; |
- var ifFound = false; |
- var bindFound = false; |
- |
- for (var i = 0; i < element.attributes.length; i++) { |
- var attr = element.attributes[i]; |
- var name = attr.name; |
- var value = attr.value; |
- |
- // Allow bindings expressed in attributes to be prefixed with underbars. |
- // We do this to allow correct semantics for browsers that don't implement |
- // <template> where certain attributes might trigger side-effects -- and |
- // for IE which sanitizes certain attributes, disallowing mustache |
- // replacements in their text. |
- while (name[0] === '_') { |
- name = name.substring(1); |
- } |
- |
- if (isTemplate(element) && |
- (name === IF || name === BIND || name === REPEAT)) { |
- continue; |
- } |
- |
- var tokens = parseMustaches(value, name, element, |
- prepareBindingFn); |
- if (!tokens) |
- continue; |
- |
- bindings.push(name, tokens); |
- } |
- |
- if (isTemplate(element)) { |
- bindings.isTemplate = true; |
- bindings.if = parseWithDefault(element, IF, prepareBindingFn); |
- bindings.bind = parseWithDefault(element, BIND, prepareBindingFn); |
- bindings.repeat = parseWithDefault(element, REPEAT, prepareBindingFn); |
- |
- if (bindings.if && !bindings.bind && !bindings.repeat) |
- bindings.bind = parseMustaches('{{}}', BIND, element, prepareBindingFn); |
- } |
- |
- return bindings; |
- } |
- |
- function getBindings(node, prepareBindingFn) { |
- if (node.nodeType === Node.ELEMENT_NODE) |
- return parseAttributeBindings(node, prepareBindingFn); |
- |
- if (node.nodeType === Node.TEXT_NODE) { |
- var tokens = parseMustaches(node.data, 'textContent', node, |
- prepareBindingFn); |
- if (tokens) |
- return ['textContent', tokens]; |
- } |
- |
- return []; |
- } |
- |
- function cloneAndBindInstance(node, parent, stagingDocument, bindings, model, |
- delegate, |
- instanceBindings, |
- instanceRecord) { |
- var clone = parent.appendChild(stagingDocument.importNode(node, false)); |
- |
- var i = 0; |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- cloneAndBindInstance(child, clone, stagingDocument, |
- bindings.children[i++], |
- model, |
- delegate, |
- instanceBindings); |
- } |
- |
- if (bindings.isTemplate) { |
- HTMLTemplateElement.decorate(clone, node); |
- if (delegate) |
- clone.setDelegate_(delegate); |
- } |
- |
- processBindings(clone, bindings, model, instanceBindings); |
- return clone; |
- } |
- |
- function createInstanceBindingMap(node, prepareBindingFn) { |
- var map = getBindings(node, prepareBindingFn); |
- map.children = {}; |
- var index = 0; |
- for (var child = node.firstChild; child; child = child.nextSibling) { |
- map.children[index++] = createInstanceBindingMap(child, prepareBindingFn); |
- } |
- |
- return map; |
- } |
- |
- var contentUidCounter = 1; |
- |
- // TODO(rafaelw): Setup a MutationObserver on content which clears the id |
- // so that bindingMaps regenerate when the template.content changes. |
- function getContentUid(content) { |
- var id = content.id_; |
- if (!id) |
- id = content.id_ = contentUidCounter++; |
- return id; |
- } |
- |
- // Each delegate is associated with a set of bindingMaps, one for each |
- // content which may be used by a template. The intent is that each binding |
- // delegate gets the opportunity to prepare the instance (via the prepare* |
- // delegate calls) once across all uses. |
- // TODO(rafaelw): Separate out the parse map from the binding map. In the |
- // current implementation, if two delegates need a binding map for the same |
- // content, the second will have to reparse. |
- function getInstanceBindingMap(content, delegate_) { |
- var contentId = getContentUid(content); |
- if (delegate_) { |
- var map = delegate_.bindingMaps[contentId]; |
- if (!map) { |
- map = delegate_.bindingMaps[contentId] = |
- createInstanceBindingMap(content, delegate_.prepareBinding) || []; |
- } |
- return map; |
- } |
- |
- var map = content.bindingMap_; |
- if (!map) { |
- map = content.bindingMap_ = |
- createInstanceBindingMap(content, undefined) || []; |
- } |
- return map; |
- } |
- |
- Object.defineProperty(Node.prototype, 'templateInstance', { |
- get: function() { |
- var instance = this.templateInstance_; |
- return instance ? instance : |
- (this.parentNode ? this.parentNode.templateInstance : undefined); |
- } |
- }); |
- |
- var emptyInstance = document.createDocumentFragment(); |
- emptyInstance.bindings_ = []; |
- emptyInstance.terminator_ = null; |
- |
- function TemplateIterator(templateElement) { |
- this.closed = false; |
- this.templateElement_ = templateElement; |
- this.instances = []; |
- this.deps = undefined; |
- this.iteratedValue = []; |
- this.presentValue = undefined; |
- this.arrayObserver = undefined; |
- } |
- |
- TemplateIterator.prototype = { |
- closeDeps: function() { |
- var deps = this.deps; |
- if (deps) { |
- if (deps.ifOneTime === false) |
- deps.ifValue.close(); |
- if (deps.oneTime === false) |
- deps.value.close(); |
- } |
- }, |
- |
- updateDependencies: function(directives, model) { |
- this.closeDeps(); |
- |
- var deps = this.deps = {}; |
- var template = this.templateElement_; |
- |
- if (directives.if) { |
- deps.hasIf = true; |
- deps.ifOneTime = directives.if.onlyOneTime; |
- deps.ifValue = processBinding(IF, directives.if, template, model); |
- |
- // oneTime if & predicate is false. nothing else to do. |
- if (deps.ifOneTime && !deps.ifValue) { |
- this.updateIteratedValue(); |
- return; |
- } |
- |
- if (!deps.ifOneTime) |
- deps.ifValue.open(this.updateIteratedValue, this); |
- } |
- |
- if (directives.repeat) { |
- deps.repeat = true; |
- deps.oneTime = directives.repeat.onlyOneTime; |
- deps.value = processBinding(REPEAT, directives.repeat, template, model); |
- } else { |
- deps.repeat = false; |
- deps.oneTime = directives.bind.onlyOneTime; |
- deps.value = processBinding(BIND, directives.bind, template, model); |
- } |
- |
- if (!deps.oneTime) |
- deps.value.open(this.updateIteratedValue, this); |
- |
- this.updateIteratedValue(); |
- }, |
- |
- updateIteratedValue: function() { |
- if (this.deps.hasIf) { |
- var ifValue = this.deps.ifValue; |
- if (!this.deps.ifOneTime) |
- ifValue = ifValue.discardChanges(); |
- if (!ifValue) { |
- this.valueChanged(); |
- return; |
- } |
- } |
- |
- var value = this.deps.value; |
- if (!this.deps.oneTime) |
- value = value.discardChanges(); |
- if (!this.deps.repeat) |
- value = [value]; |
- var observe = this.deps.repeat && |
- !this.deps.oneTime && |
- Array.isArray(value); |
- this.valueChanged(value, observe); |
- }, |
- |
- valueChanged: function(value, observeValue) { |
- if (!Array.isArray(value)) |
- value = []; |
- |
- if (value === this.iteratedValue) |
- return; |
- |
- this.unobserve(); |
- this.presentValue = value; |
- if (observeValue) { |
- this.arrayObserver = new ArrayObserver(this.presentValue); |
- this.arrayObserver.open(this.handleSplices, this); |
- } |
- |
- this.handleSplices(ArrayObserver.calculateSplices(this.presentValue, |
- this.iteratedValue)); |
- }, |
- |
- getLastInstanceNode: function(index) { |
- if (index == -1) |
- return this.templateElement_; |
- var instance = this.instances[index]; |
- var terminator = instance.terminator_; |
- if (!terminator) |
- return this.getLastInstanceNode(index - 1); |
- |
- if (terminator.nodeType !== Node.ELEMENT_NODE || |
- this.templateElement_ === terminator) { |
- return terminator; |
- } |
- |
- var subtemplateIterator = terminator.iterator_; |
- if (!subtemplateIterator) |
- return terminator; |
- |
- return subtemplateIterator.getLastTemplateNode(); |
- }, |
- |
- getLastTemplateNode: function() { |
- return this.getLastInstanceNode(this.instances.length - 1); |
- }, |
- |
- insertInstanceAt: function(index, fragment) { |
- var previousInstanceLast = this.getLastInstanceNode(index - 1); |
- var parent = this.templateElement_.parentNode; |
- this.instances.splice(index, 0, fragment); |
- |
- parent.insertBefore(fragment, previousInstanceLast.nextSibling); |
- }, |
- |
- extractInstanceAt: function(index) { |
- var previousInstanceLast = this.getLastInstanceNode(index - 1); |
- var lastNode = this.getLastInstanceNode(index); |
- var parent = this.templateElement_.parentNode; |
- var instance = this.instances.splice(index, 1)[0]; |
- |
- while (lastNode !== previousInstanceLast) { |
- var node = previousInstanceLast.nextSibling; |
- if (node == lastNode) |
- lastNode = previousInstanceLast; |
- |
- instance.appendChild(parent.removeChild(node)); |
- } |
- |
- return instance; |
- }, |
- |
- getDelegateFn: function(fn) { |
- fn = fn && fn(this.templateElement_); |
- return typeof fn === 'function' ? fn : null; |
- }, |
- |
- handleSplices: function(splices) { |
- if (this.closed || !splices.length) |
- return; |
- |
- var template = this.templateElement_; |
- |
- if (!template.parentNode) { |
- this.close(); |
- return; |
- } |
- |
- ArrayObserver.applySplices(this.iteratedValue, this.presentValue, |
- splices); |
- |
- var delegate = template.delegate_; |
- if (this.instanceModelFn_ === undefined) { |
- this.instanceModelFn_ = |
- this.getDelegateFn(delegate && delegate.prepareInstanceModel); |
- } |
- |
- if (this.instancePositionChangedFn_ === undefined) { |
- this.instancePositionChangedFn_ = |
- this.getDelegateFn(delegate && |
- delegate.prepareInstancePositionChanged); |
- } |
- |
- // Instance Removals |
- var instanceCache = new Map; |
- var removeDelta = 0; |
- for (var i = 0; i < splices.length; i++) { |
- var splice = splices[i]; |
- var removed = splice.removed; |
- for (var j = 0; j < removed.length; j++) { |
- var model = removed[j]; |
- var instance = this.extractInstanceAt(splice.index + removeDelta); |
- if (instance !== emptyInstance) { |
- instanceCache.set(model, instance); |
- } |
- } |
- |
- removeDelta -= splice.addedCount; |
- } |
- |
- // Instance Insertions |
- for (var i = 0; i < splices.length; i++) { |
- var splice = splices[i]; |
- var addIndex = splice.index; |
- for (; addIndex < splice.index + splice.addedCount; addIndex++) { |
- var model = this.iteratedValue[addIndex]; |
- var instance = instanceCache.get(model); |
- if (instance) { |
- instanceCache.delete(model); |
- } else { |
- if (this.instanceModelFn_) { |
- model = this.instanceModelFn_(model); |
- } |
- |
- if (model === undefined) { |
- instance = emptyInstance; |
- } else { |
- instance = template.createInstance(model, undefined, delegate); |
- } |
- } |
- |
- this.insertInstanceAt(addIndex, instance); |
- } |
- } |
- |
- instanceCache.forEach(function(instance) { |
- this.closeInstanceBindings(instance); |
- }, this); |
- |
- if (this.instancePositionChangedFn_) |
- this.reportInstancesMoved(splices); |
- }, |
- |
- reportInstanceMoved: function(index) { |
- var instance = this.instances[index]; |
- if (instance === emptyInstance) |
- return; |
- |
- this.instancePositionChangedFn_(instance.templateInstance_, index); |
- }, |
- |
- reportInstancesMoved: function(splices) { |
- var index = 0; |
- var offset = 0; |
- for (var i = 0; i < splices.length; i++) { |
- var splice = splices[i]; |
- if (offset != 0) { |
- while (index < splice.index) { |
- this.reportInstanceMoved(index); |
- index++; |
- } |
- } else { |
- index = splice.index; |
- } |
- |
- while (index < splice.index + splice.addedCount) { |
- this.reportInstanceMoved(index); |
- index++; |
- } |
- |
- offset += splice.addedCount - splice.removed.length; |
- } |
- |
- if (offset == 0) |
- return; |
- |
- var length = this.instances.length; |
- while (index < length) { |
- this.reportInstanceMoved(index); |
- index++; |
- } |
- }, |
- |
- closeInstanceBindings: function(instance) { |
- var bindings = instance.bindings_; |
- for (var i = 0; i < bindings.length; i++) { |
- bindings[i].close(); |
- } |
- }, |
- |
- unobserve: function() { |
- if (!this.arrayObserver) |
- return; |
- |
- this.arrayObserver.close(); |
- this.arrayObserver = undefined; |
- }, |
- |
- close: function() { |
- if (this.closed) |
- return; |
- this.unobserve(); |
- for (var i = 0; i < this.instances.length; i++) { |
- this.closeInstanceBindings(this.instances[i]); |
- } |
- |
- this.instances.length = 0; |
- this.closeDeps(); |
- this.templateElement_.iterator_ = undefined; |
- this.closed = true; |
- } |
- }; |
- |
- // Polyfill-specific API. |
- HTMLTemplateElement.forAllTemplatesFrom_ = forAllTemplatesFrom; |
-})(this); |
- |
-/* |
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
- * Code distributed by Google as part of the polymer project is also |
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
- */ |
- |
-(function(scope) { |
- |
-// inject style sheet |
-var style = document.createElement('style'); |
-style.textContent = 'template {display: none !important;} /* injected by platform.js */'; |
-var head = document.querySelector('head'); |
-head.insertBefore(style, head.firstChild); |
- |
-// flush (with logging) |
-var flushing; |
-function flush() { |
- if (!flushing) { |
- flushing = true; |
- scope.endOfMicrotask(function() { |
- flushing = false; |
- logFlags.data && console.group('Platform.flush()'); |
- scope.performMicrotaskCheckpoint(); |
- logFlags.data && console.groupEnd(); |
- }); |
- } |
-}; |
- |
-// polling dirty checker |
-// flush periodically if platform does not have object observe. |
-if (!Observer.hasObjectObserve) { |
- var FLUSH_POLL_INTERVAL = 125; |
- window.addEventListener('WebComponentsReady', function() { |
- flush(); |
- scope.flushPoll = setInterval(flush, FLUSH_POLL_INTERVAL); |
- }); |
-} else { |
- // make flush a no-op when we have Object.observe |
- flush = function() {}; |
-} |
- |
-if (window.CustomElements && !CustomElements.useNative) { |
- var originalImportNode = Document.prototype.importNode; |
- Document.prototype.importNode = function(node, deep) { |
- var imported = originalImportNode.call(this, node, deep); |
- CustomElements.upgradeAll(imported); |
- return imported; |
- } |
-} |
- |
-// exports |
-scope.flush = flush; |
- |
-})(window.Platform); |
- |
- |
-//# sourceMappingURL=platform.concat.js.map |