| OLD | NEW |
|---|
| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <!-- | 2 <!-- |
| 3 Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 3 Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 4 for details. All rights reserved. Use of this source code is governed by a | 4 for details. All rights reserved. Use of this source code is governed by a |
| 5 BSD-style license that can be found in the LICENSE file. | 5 BSD-style license that can be found in the LICENSE file. |
| 6 --> | 6 --> |
| 7 <html> | 7 <html> |
| 8 <body> | 8 <body> |
| 9 <element name="x-router-options" extends="ul" apply-author-styles> | 9 <element name="x-router-options" extends="ul" apply-author-styles> |
| 10 <template><content></content></template> | 10 <template><content></content></template> |
| 11 <script type="application/dart"> | 11 <script type="application/dart"> |
| 12 import 'dart:html'; | 12 import 'dart:html'; |
| 13 import 'package:web_ui/web_ui.dart'; | 13 import 'package:web_ui/web_ui.dart'; |
| 14 import 'package:web_ui/observe/html.dart'; |
| 14 | 15 |
| 15 /** | 16 /** |
| 16 * Given a set of child links to this page, this will add the "selected" CSS | 17 * Given a set of child links to this page, this will add the "selected" CSS |
| 17 * class to the link that matches window.location.hash. | 18 * class to the link that matches window.location.hash. |
| 18 * | 19 * |
| 19 * For example, if the current window.location.hash is "#/completed" and we | 20 * For example, if the current window.location.hash is "#/completed" and we |
| 20 * have a tag like `<a href="#/completed">` it will get the class | 21 * have a tag like `<a href="#/completed">` it will get the class |
| 21 * `class="selected"`, and other links will have that CSS class removed. | 22 * `class="selected"`, and other links will have that CSS class removed. |
| 22 */ | 23 */ |
| 23 class RouterOptions extends WebComponent { | 24 class RouterOptions extends WebComponent { |
| 24 | 25 |
| 25 var _stopWatcher; | 26 var _stopWatcher; |
| 26 | 27 |
| 27 void inserted() { | 28 void inserted() { |
| 28 super.inserted(); | 29 super.inserted(); |
| 29 | 30 |
| 30 var anchors = this.queryAll('a'); | 31 var anchors = this.queryAll('a'); |
| 31 | 32 |
| 32 // TODO(jmesserly): this only works because main() registered for | 33 _stopWatcher = watchAndInvoke(() => locationHash, (e) { |
| 33 // popState and hashChanged. | |
| 34 _stopWatcher = watchAndInvoke(() => window.location.hash, (e) { | |
| 35 var hash = e.newValue; | 34 var hash = e.newValue; |
| 36 if (hash == '') hash = '#/'; | 35 if (hash == '') hash = '#/'; |
| 37 for (var a in anchors) { | 36 for (var a in anchors) { |
| 38 updateCssClass(a, a.hash == hash, 'selected'); | 37 updateCssClass(a, a.hash == hash, 'selected'); |
| 39 } | 38 } |
| 40 }); | 39 }); |
| 41 } | 40 } |
| 42 | 41 |
| 43 void removed() { | 42 void removed() { |
| 44 _stopWatcher(); | 43 _stopWatcher(); |
| 45 super.removed(); | 44 super.removed(); |
| 46 } | 45 } |
| 47 } | 46 } |
| 48 </script> | 47 </script> |
| 49 </element> | 48 </element> |
| 50 </body> | 49 </body> |
| 51 </html> | 50 </html> |
| OLD | NEW |
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Chromium Code Reviews
Issue 12225039:
Support for observable models, fixes #259 (Closed)
Base URL: https://github.com/dart-lang/web-ui.git@master