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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 cr.define('options', function() { | |
| 6 var OptionsPage = options.OptionsPage; | |
| 7 | |
| 8 ///////////////////////////////////////////////////////////////////////////// | |
| 9 // IntentsView class: | |
| 10 | |
| 11 /** | |
| 12 * Encapsulated handling of the Intents data page. | |
| 13 * @constructor | |
| 14 */ | |
| 15 function IntentsView(model) { | |
| 16 OptionsPage.call(this, 'intents', | |
| 17 templateData.intentsViewPageTabTitle, | |
| 18 'intents-view-page'); | |
| 19 } | |
| 20 | |
| 21 cr.addSingletonGetter(IntentsView); | |
| 22 | |
| 23 IntentsView.prototype = { | |
| 24 __proto__: OptionsPage.prototype, | |
| 25 | |
| 26 initializePage: function() { | |
| 27 OptionsPage.prototype.initializePage.call(this); | |
| 28 | |
| 29 var intentsList = $('intents-list'); | |
| 30 options.IntentsList.decorate(intentsList); | |
| 31 window.addEventListener('resize', this.handleResize_.bind(this)); | |
| 32 | |
| 33 this.addEventListener('visibleChange', this.handleVisibleChange_); | |
| 34 }, | |
| 35 | |
| 36 initialized_: false, | |
| 37 | |
| 38 /** | |
| 39 * Handler for OptionsPage's visible property change event. | |
| 40 * @param {Event} e Property change event. | |
| 41 * @private | |
| 42 */ | |
| 43 handleVisibleChange_: function(e) { | |
| 44 if (!this.visible) | |
| 45 return; | |
| 46 | |
| 47 // Resize the intents list whenever the options page becomes visible. | |
| 48 this.handleResize_(null); | |
| 49 if (!this.initialized_) { | |
| 50 this.initialized_ = true; | |
| 51 chrome.send('loadIntents'); | |
| 52 } else { | |
| 53 $('intents-list').redraw(); | |
| 54 } | |
| 55 }, | |
| 56 | |
| 57 /** | |
| 58 * Handler for when the window changes size. Resizes the intents list to | |
| 59 * match the window height. | |
| 60 * @param {?Event} e Window resize event, or null if called directly. | |
| 61 * @private | |
| 62 */ | |
| 63 handleResize_: function(e) { | |
| 64 if (!this.visible) | |
| 65 return; | |
| 66 var intentsList = $('intents-list'); | |
| 67 // 25 pixels from the window bottom seems like a visually pleasing amount. | |
| 68 var height = window.innerHeight - intentsList.offsetTop - 25; | |
| 69 intentsList.style.height = height + 'px'; | |
| 70 }, | |
| 71 }; | |
| 72 | |
| 73 // IntentsViewHandler callbacks. | |
| 74 IntentsView.loadChildren = function(args) { | |
| 75 $('intents-list').loadChildren(args[0], args[1]); | |
| 76 }; | |
| 77 | |
| 78 // Export | |
| 79 return { | |
| 80 IntentsView: IntentsView | |
| 81 }; | |
| 82 | |
| 83 }); | |
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