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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 class FilteredElementList implements ElementList { | 5 class FilteredElementList implements ElementList { |
6 final Node _node; | 6 final Node _node; |
7 final NodeList _childNodes; | 7 final NodeList _childNodes; |
8 | 8 |
9 FilteredElementList(Node node): _childNodes = node.nodes, _node = node; | 9 FilteredElementList(Node node): _childNodes = node.nodes, _node = node; |
10 | 10 |
11 // We can't memoize this, since it's possible that children will be messed | 11 // We can't memoize this, since it's possible that children will be messed |
12 // with externally to this class. | 12 // with externally to this class. |
13 // | 13 // |
14 // TODO(nweiz): Do we really need to copy the list to make the types work out? | 14 // TODO(nweiz): Do we really need to copy the list to make the types work out? |
15 List<Element> get _filtered() => | 15 List<Element> get _filtered => |
16 new List.from(_childNodes.filter((n) => n is Element)); | 16 new List.from(_childNodes.filter((n) => n is Element)); |
17 | 17 |
18 // Don't use _filtered.first so we can short-circuit once we find an element. | 18 // Don't use _filtered.first so we can short-circuit once we find an element. |
19 Element get first() { | 19 Element get first { |
20 for (var node in _childNodes) { | 20 for (var node in _childNodes) { |
21 if (node is Element) { | 21 if (node is Element) { |
22 return node; | 22 return node; |
23 } | 23 } |
24 } | 24 } |
25 return null; | 25 return null; |
26 } | 26 } |
27 | 27 |
28 void forEach(void f(Element element)) { | 28 void forEach(void f(Element element)) { |
29 _filtered.forEach(f); | 29 _filtered.forEach(f); |
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84 last.remove(); | 84 last.remove(); |
85 } | 85 } |
86 return last; | 86 return last; |
87 } | 87 } |
88 | 88 |
89 Collection map(f(Element element)) => _filtered.map(f); | 89 Collection map(f(Element element)) => _filtered.map(f); |
90 Collection<Element> filter(bool f(Element element)) => _filtered.filter(f); | 90 Collection<Element> filter(bool f(Element element)) => _filtered.filter(f); |
91 bool every(bool f(Element element)) => _filtered.every(f); | 91 bool every(bool f(Element element)) => _filtered.every(f); |
92 bool some(bool f(Element element)) => _filtered.some(f); | 92 bool some(bool f(Element element)) => _filtered.some(f); |
93 bool isEmpty() => _filtered.isEmpty(); | 93 bool isEmpty() => _filtered.isEmpty(); |
94 int get length() => _filtered.length; | 94 int get length => _filtered.length; |
95 Element operator [](int index) => _filtered[index]; | 95 Element operator [](int index) => _filtered[index]; |
96 Iterator<Element> iterator() => _filtered.iterator(); | 96 Iterator<Element> iterator() => _filtered.iterator(); |
97 List<Element> getRange(int start, int length) => | 97 List<Element> getRange(int start, int length) => |
98 _filtered.getRange(start, length); | 98 _filtered.getRange(start, length); |
99 int indexOf(Element element, [int start = 0]) => | 99 int indexOf(Element element, [int start = 0]) => |
100 _filtered.indexOf(element, start); | 100 _filtered.indexOf(element, start); |
101 | 101 |
102 int lastIndexOf(Element element, [int start = null]) { | 102 int lastIndexOf(Element element, [int start = null]) { |
103 if (start === null) start = length - 1; | 103 if (start === null) start = length - 1; |
104 return _filtered.lastIndexOf(element, start); | 104 return _filtered.lastIndexOf(element, start); |
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175 var fragment = new DocumentFragment(); | 175 var fragment = new DocumentFragment(); |
176 var e = new SVGSVGElement(); | 176 var e = new SVGSVGElement(); |
177 e.innerHTML = svg; | 177 e.innerHTML = svg; |
178 | 178 |
179 // Copy list first since we don't want liveness during iteration. | 179 // Copy list first since we don't want liveness during iteration. |
180 List nodes = new List.from(e.nodes); | 180 List nodes = new List.from(e.nodes); |
181 fragment.nodes.addAll(nodes); | 181 fragment.nodes.addAll(nodes); |
182 return fragment; | 182 return fragment; |
183 } | 183 } |
184 | 184 |
185 ElementList get elements() { | 185 ElementList get elements { |
186 if (_elements == null) { | 186 if (_elements == null) { |
187 _elements = new FilteredElementList(this); | 187 _elements = new FilteredElementList(this); |
188 } | 188 } |
189 return _elements; | 189 return _elements; |
190 } | 190 } |
191 | 191 |
192 void set elements(Collection<Element> value) { | 192 void set elements(Collection<Element> value) { |
193 // Copy list first since we don't want liveness during iteration. | 193 // Copy list first since we don't want liveness during iteration. |
194 List copy = new List.from(value); | 194 List copy = new List.from(value); |
195 final elements = this.elements; | 195 final elements = this.elements; |
196 elements.clear(); | 196 elements.clear(); |
197 elements.addAll(copy); | 197 elements.addAll(copy); |
198 } | 198 } |
199 | 199 |
200 String get innerHTML() { | 200 String get innerHTML { |
201 var e = new Element.tag("div"); | 201 var e = new Element.tag("div"); |
202 e.nodes.add(this.clone(true)); | 202 e.nodes.add(this.clone(true)); |
203 return e.innerHTML; | 203 return e.innerHTML; |
204 } | 204 } |
205 | 205 |
206 String get outerHTML() => innerHTML; | 206 String get outerHTML => innerHTML; |
207 | 207 |
208 // TODO(nweiz): Do we want to support some variant of innerHTML for XML and/or | 208 // TODO(nweiz): Do we want to support some variant of innerHTML for XML and/or |
209 // SVG strings? | 209 // SVG strings? |
210 void set innerHTML(String value) { | 210 void set innerHTML(String value) { |
211 this.nodes.clear(); | 211 this.nodes.clear(); |
212 | 212 |
213 var e = new Element.tag("div"); | 213 var e = new Element.tag("div"); |
214 e.innerHTML = value; | 214 e.innerHTML = value; |
215 | 215 |
216 // Copy list first since we don't want liveness during iteration. | 216 // Copy list first since we don't want liveness during iteration. |
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239 void insertAdjacentText([String where = null, String text = null]) { | 239 void insertAdjacentText([String where = null, String text = null]) { |
240 this._insertAdjacentNode(where, new Text(text)); | 240 this._insertAdjacentNode(where, new Text(text)); |
241 } | 241 } |
242 | 242 |
243 void insertAdjacentHTML( | 243 void insertAdjacentHTML( |
244 [String position_OR_where = null, String text = null]) { | 244 [String position_OR_where = null, String text = null]) { |
245 this._insertAdjacentNode( | 245 this._insertAdjacentNode( |
246 position_OR_where, new DocumentFragment.html(text)); | 246 position_OR_where, new DocumentFragment.html(text)); |
247 } | 247 } |
248 | 248 |
249 ElementEvents get on() { | 249 ElementEvents get on { |
250 if (_on === null) { | 250 if (_on === null) { |
251 _on = new ElementEventsImplementation._wrap(_ptr); | 251 _on = new ElementEventsImplementation._wrap(_ptr); |
252 } | 252 } |
253 return _on; | 253 return _on; |
254 } | 254 } |
255 | 255 |
256 Future<ElementRect> get rect() { | 256 Future<ElementRect> get rect { |
257 return _createMeasurementFuture(() => const EmptyElementRect(), | 257 return _createMeasurementFuture(() => const EmptyElementRect(), |
258 new Completer<ElementRect>()); | 258 new Completer<ElementRect>()); |
259 } | 259 } |
260 | 260 |
261 Element query(String selectors) => | 261 Element query(String selectors) => |
262 LevelDom.wrapElement(_ptr.querySelector(selectors)); | 262 LevelDom.wrapElement(_ptr.querySelector(selectors)); |
263 | 263 |
264 ElementList queryAll(String selectors) => | 264 ElementList queryAll(String selectors) => |
265 LevelDom.wrapElementList(_ptr.querySelectorAll(selectors)); | 265 LevelDom.wrapElementList(_ptr.querySelectorAll(selectors)); |
266 | 266 |
267 // If we can come up with a semi-reasonable default value for an Element | 267 // If we can come up with a semi-reasonable default value for an Element |
268 // getter, we'll use it. In general, these return the same values as an | 268 // getter, we'll use it. In general, these return the same values as an |
269 // element that has no parent. | 269 // element that has no parent. |
270 String get contentEditable() => "false"; | 270 String get contentEditable => "false"; |
271 bool get isContentEditable() => false; | 271 bool get isContentEditable => false; |
272 bool get draggable() => false; | 272 bool get draggable => false; |
273 bool get hidden() => false; | 273 bool get hidden => false; |
274 bool get spellcheck() => false; | 274 bool get spellcheck => false; |
275 int get tabIndex() => -1; | 275 int get tabIndex => -1; |
276 String get id() => ""; | 276 String get id => ""; |
277 String get title() => ""; | 277 String get title => ""; |
278 String get tagName() => ""; | 278 String get tagName => ""; |
279 String get webkitdropzone() => ""; | 279 String get webkitdropzone => ""; |
280 Element get firstElementChild() => elements.first(); | 280 Element get firstElementChild => elements.first(); |
281 Element get lastElementChild() => elements.last(); | 281 Element get lastElementChild => elements.last(); |
282 Element get nextElementSibling() => null; | 282 Element get nextElementSibling => null; |
283 Element get previousElementSibling() => null; | 283 Element get previousElementSibling => null; |
284 Element get offsetParent() => null; | 284 Element get offsetParent => null; |
285 Element get parent() => null; | 285 Element get parent => null; |
286 Map<String, String> get attributes() => const {}; | 286 Map<String, String> get attributes => const {}; |
287 CSSClassSet get classes() => null; | 287 CSSClassSet get classes => null; |
288 Map<String, String> get dataAttributes() => const {}; | 288 Map<String, String> get dataAttributes => const {}; |
289 CSSStyleDeclaration get style() => new EmptyStyleDeclaration(); | 289 CSSStyleDeclaration get style => new EmptyStyleDeclaration(); |
290 Future<CSSStyleDeclaration> get computedStyle() => | 290 Future<CSSStyleDeclaration> get computedStyle => |
291 _emptyStyleFuture(); | 291 _emptyStyleFuture(); |
292 Future<CSSStyleDeclaration> getComputedStyle(String pseudoElement) => | 292 Future<CSSStyleDeclaration> getComputedStyle(String pseudoElement) => |
293 _emptyStyleFuture(); | 293 _emptyStyleFuture(); |
294 bool matchesSelector([String selectors]) => false; | 294 bool matchesSelector([String selectors]) => false; |
295 | 295 |
296 // Imperative Element methods are made into no-ops, as they are on parentless | 296 // Imperative Element methods are made into no-ops, as they are on parentless |
297 // elements. | 297 // elements. |
298 void blur() {} | 298 void blur() {} |
299 void focus() {} | 299 void focus() {} |
300 void scrollByLines([int lines]) {} | 300 void scrollByLines([int lines]) {} |
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316 void set dataAttributes(Map<String, String> value) { | 316 void set dataAttributes(Map<String, String> value) { |
317 throw new UnsupportedOperationException( | 317 throw new UnsupportedOperationException( |
318 "Data attributes can't be set for document fragments."); | 318 "Data attributes can't be set for document fragments."); |
319 } | 319 } |
320 | 320 |
321 void set contentEditable(String value) { | 321 void set contentEditable(String value) { |
322 throw new UnsupportedOperationException( | 322 throw new UnsupportedOperationException( |
323 "Content editable can't be set for document fragments."); | 323 "Content editable can't be set for document fragments."); |
324 } | 324 } |
325 | 325 |
326 String get dir() { | 326 String get dir { |
327 throw new UnsupportedOperationException( | 327 throw new UnsupportedOperationException( |
328 "Document fragments don't support text direction."); | 328 "Document fragments don't support text direction."); |
329 } | 329 } |
330 | 330 |
331 void set dir(String value) { | 331 void set dir(String value) { |
332 throw new UnsupportedOperationException( | 332 throw new UnsupportedOperationException( |
333 "Document fragments don't support text direction."); | 333 "Document fragments don't support text direction."); |
334 } | 334 } |
335 | 335 |
336 void set draggable(bool value) { | 336 void set draggable(bool value) { |
337 throw new UnsupportedOperationException( | 337 throw new UnsupportedOperationException( |
338 "Draggable can't be set for document fragments."); | 338 "Draggable can't be set for document fragments."); |
339 } | 339 } |
340 | 340 |
341 void set hidden(bool value) { | 341 void set hidden(bool value) { |
342 throw new UnsupportedOperationException( | 342 throw new UnsupportedOperationException( |
343 "Hidden can't be set for document fragments."); | 343 "Hidden can't be set for document fragments."); |
344 } | 344 } |
345 | 345 |
346 void set id(String value) { | 346 void set id(String value) { |
347 throw new UnsupportedOperationException( | 347 throw new UnsupportedOperationException( |
348 "ID can't be set for document fragments."); | 348 "ID can't be set for document fragments."); |
349 } | 349 } |
350 | 350 |
351 String get lang() { | 351 String get lang { |
352 throw new UnsupportedOperationException( | 352 throw new UnsupportedOperationException( |
353 "Document fragments don't support language."); | 353 "Document fragments don't support language."); |
354 } | 354 } |
355 | 355 |
356 void set lang(String value) { | 356 void set lang(String value) { |
357 throw new UnsupportedOperationException( | 357 throw new UnsupportedOperationException( |
358 "Document fragments don't support language."); | 358 "Document fragments don't support language."); |
359 } | 359 } |
360 | 360 |
361 void set scrollLeft(int value) { | 361 void set scrollLeft(int value) { |
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383 "Title can't be set for document fragments."); | 383 "Title can't be set for document fragments."); |
384 } | 384 } |
385 | 385 |
386 void set webkitdropzone(String value) { | 386 void set webkitdropzone(String value) { |
387 throw new UnsupportedOperationException( | 387 throw new UnsupportedOperationException( |
388 "WebKit drop zone can't be set for document fragments."); | 388 "WebKit drop zone can't be set for document fragments."); |
389 } | 389 } |
390 | 390 |
391 DocumentFragment clone(bool deep) => super.clone(deep); | 391 DocumentFragment clone(bool deep) => super.clone(deep); |
392 } | 392 } |
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