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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, 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 part of html; | 5 part of html; |
| 6 | 6 |
| 7 /** | 7 /** |
| 8 * Lazy implementation of the child nodes of an element that does not request | 8 * Lazy implementation of the child nodes of an element that does not request |
| 9 * the actual child nodes of an element until strictly necessary greatly | 9 * the actual child nodes of an element until strictly necessary greatly |
| 10 * improving performance for the typical cases where it is not required. | 10 * improving performance for the typical cases where it is not required. |
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| 196 int get length => _this.$dom_childNodes.length; | 196 int get length => _this.$dom_childNodes.length; |
| 197 | 197 |
| 198 void set length(int value) { | 198 void set length(int value) { |
| 199 throw new UnsupportedError( | 199 throw new UnsupportedError( |
| 200 "Cannot set length on immutable List."); | 200 "Cannot set length on immutable List."); |
| 201 } | 201 } |
| 202 | 202 |
| 203 Node operator[](int index) => _this.$dom_childNodes[index]; | 203 Node operator[](int index) => _this.$dom_childNodes[index]; |
| 204 } | 204 } |
| 205 | 205 |
| 206 /// @domName $DOMNAME | 206 @DomName('$DOMNAME') |
| 207 class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC { | 207 class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC { |
| 208 List<Node> get nodes { | 208 List<Node> get nodes { |
| 209 return new _ChildNodeListLazy(this); | 209 return new _ChildNodeListLazy(this); |
| 210 } | 210 } |
| 211 | 211 |
| 212 void set nodes(Collection<Node> value) { | 212 void set nodes(Collection<Node> value) { |
| 213 // Copy list first since we don't want liveness during iteration. | 213 // Copy list first since we don't want liveness during iteration. |
| 214 // TODO(jacobr): there is a better way to do this. | 214 // TODO(jacobr): there is a better way to do this. |
| 215 List copy = new List.from(value); | 215 List copy = new List.from(value); |
| 216 text = ''; | 216 text = ''; |
| 217 for (Node node in copy) { | 217 for (Node node in copy) { |
| 218 $dom_appendChild(node); | 218 $dom_appendChild(node); |
| 219 } | 219 } |
| 220 } | 220 } |
| 221 | 221 |
| 222 /** | 222 /** |
| 223 * Removes this node from the DOM. | 223 * Removes this node from the DOM. |
| 224 * @domName Node.removeChild | |
| 225 */ | 224 */ |
| 225 @DomName('Node.removeChild') |
| 226 void remove() { | 226 void remove() { |
| 227 // TODO(jacobr): should we throw an exception if parent is already null? | 227 // TODO(jacobr): should we throw an exception if parent is already null? |
| 228 // TODO(vsm): Use the native remove when available. | 228 // TODO(vsm): Use the native remove when available. |
| 229 if (this.parentNode != null) { | 229 if (this.parentNode != null) { |
| 230 final Node parent = this.parentNode; | 230 final Node parent = this.parentNode; |
| 231 parentNode.$dom_removeChild(this); | 231 parentNode.$dom_removeChild(this); |
| 232 } | 232 } |
| 233 } | 233 } |
| 234 | 234 |
| 235 /** | 235 /** |
| 236 * Replaces this node with another node. | 236 * Replaces this node with another node. |
| 237 * @domName Node.replaceChild | |
| 238 */ | 237 */ |
| 238 @DomName('Node.replaceChild') |
| 239 Node replaceWith(Node otherNode) { | 239 Node replaceWith(Node otherNode) { |
| 240 try { | 240 try { |
| 241 final Node parent = this.parentNode; | 241 final Node parent = this.parentNode; |
| 242 parent.$dom_replaceChild(otherNode, this); | 242 parent.$dom_replaceChild(otherNode, this); |
| 243 } catch (e) { | 243 } catch (e) { |
| 244 | 244 |
| 245 }; | 245 }; |
| 246 return this; | 246 return this; |
| 247 } | 247 } |
| 248 | 248 |
| 249 $!MEMBERS | 249 $!MEMBERS |
| 250 } | 250 } |
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