move polymer.dart into dart svn

pkg/polymer/lib/testing/testing.js

+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+(function() {
+  var undoReplaceScripts = [];
+
+  var flags = {};
+  // populate flags from location
+  location.search.slice(1).split('&').forEach(function(o) {
+    o = o.split('=');
+    o[0] && (flags[o[0]] = o[1] || true);
+  });
+
+  // Webkit is migrating from layoutTestController to testRunner, we use
+  // layoutTestController as a fallback until that settles in.
+  var runner = window.testRunner || window.layoutTestController;
+
+  if (runner) {
+    runner.dumpAsText();
+    runner.waitUntilDone();
+  }
+
+  function dumpDOM() {
+    // Undo any scripts that were modified.
+    undoReplaceScripts.forEach(function(undo) { undo(); });
+
+    function expandShadowRoot(node) {
+      for (var n = node.firstChild; n; n = n.nextSibling) {
+        expandShadowRoot(n);
+      }
+      var shadow = node.shadowRoot || node.webkitShadowRoot ||
+          node.olderShadowRoot;
+
+      if (shadow) {
+        expandShadowRoot(shadow);
+
+        var name = 'shadow-root';
+        if (shadow == node.olderShadowRoot) name = 'older-' + name;
+
+        var fakeShadow = document.createElement(name);
+        while (shadow.firstChild) fakeShadow.appendChild(shadow.firstChild);
+        node.insertBefore(fakeShadow, node.firstChild);
+      }
+    }
+
+    // TODO(jmesserly): use querySelector to workaround unwrapped "document".
+    expandShadowRoot(document.querySelector('body'));
+
+    // Clean up all of the junk added to the DOM by js-interop and shadow CSS
+    // TODO(jmesserly): it seems like we're leaking lots of dart-port attributes
+    // for the document elemenet
+    function cleanTree(node) {
+      for (var n = node.firstChild; n; n = n.nextSibling) {
+        cleanTree(n);
+      }
+
+      // Remove dart-port attributes
+      if (node.attributes) {
+        for (var i = 0; i < node.attributes.length; i++) {
+          if (node.attributes[i].value.indexOf('dart-port') == 0) {
+            node.removeAttribute(i);
+          }
+        }
+      }
+
+      if (node.tagName == 'script' &&
+          node.textContent.indexOf('_DART_TEMPORARY_ATTACHED') >= 0)  {
+        node.parentNode.removeChild(node);
+      }
+    }
+
+    // TODO(jmesserly): use querySelector to workaround unwrapped "document".
+    cleanTree(document.querySelector('html'));
+
+    var out = document.createElement('pre');
+    out.textContent = document.documentElement.outerHTML;
+    document.body.innerHTML = '';
+    document.body.appendChild(out);
+  }
+
+  function messageHandler(e) {
+    if (e.data == 'done' && runner) {
+      // On success, dump the DOM. Convert shadowRoot contents into
+      // <shadow-root>
+      dumpDOM();
+      runner.notifyDone();
+    }
+  }
+
+  window.addEventListener('message', messageHandler, false);
+
+  function errorHandler(e) {
+    if (runner) {
+      window.setTimeout(function() { runner.notifyDone(); }, 0);
+    }
+    window.console.log('FAIL');
+  }
+
+  window.addEventListener('error', errorHandler, false);
+
+  if (navigator.webkitStartDart && !flags.js) {
+    // TODO(jmesserly): fix this so we don't need to copy from browser/dart.js
+    if (!navigator.webkitStartDart()) {
+      document.body.innerHTML = 'This build has expired.  Please download a new Dartium at http://www.dartlang.org/dartium/index.html';
+    }
+  } else {
+    if (flags.shadowdomjs) {
+      // Allow flags to force polyfill of ShadowDOM so we can test it.
+      window.__forceShadowDomPolyfill = true;
+    }
+
+    // TODO:
+    // - Support in-browser compilation.
+    // - Handle inline Dart scripts.
+    window.addEventListener("DOMContentLoaded", function (e) {
+      // Fall back to compiled JS. Run through all the scripts and
+      // replace them if they have a type that indicate that they source
+      // in Dart code.
+      //
+      //   <script type="application/dart" src="..."></script>
+      //
+      var scripts = document.getElementsByTagName("script");
+      var length = scripts.length;
+      for (var i = 0; i < length; ++i) {
+        var script = scripts[i];
+        if (script.type == "application/dart") {
+          // Remap foo.dart to foo.dart.js.
+          if (script.src && script.src != '') {
+            var jsScript = document.createElement('script');
+            jsScript.src = script.src.replace(/\.dart(?=\?|$)/, '.dart.js');
+            var parent = script.parentNode;
+            // TODO(vsm): Find a solution for issue 8455 that works with more
+            // than one script.
+            document.currentScript = jsScript;
+
+            undoReplaceScripts.push(function() {
+              parent.replaceChild(script, jsScript);
+            });
+            parent.replaceChild(jsScript, script);
+          }
+        }
+      }
+    }, false);
+  }
+
+})();