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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 // require cr.js | |
| 6 // require cr/event_target.js | |
| 7 // require cr/util.js | |
| 8 | |
| 9 /** | |
| 10 * Bridge between the browser and the page. | |
| 11 * In this file: | |
| 12 * * define EventTargets to recieve message from the browser, | |
| 13 * * dispatch browser messages to EventTarget, | |
| 14 * * define interface to request data to the browser. | |
| 15 */ | |
| 16 | |
| 17 cr.define('cr.quota', function() { | |
| 18 'use strict'; | |
| 19 | |
| 20 /** | |
| 21 * Post requestData message to Browser. | |
| 22 */ | |
| 23 function requestData() { | |
| 24 chrome.send('requestData'); | |
| 25 } | |
| 26 | |
| 27 /** | |
| 28 * Callback entry point from Browser. | |
| 29 * Messages are Dispatched as Event to: | |
| 30 * * onAvailableSpaceUpdated, | |
| 31 * * onGlobalDataUpdated, | |
| 32 * * onHostDataUpdated, | |
| 33 * * onOriginDataUpdated, | |
| 34 * * onStatisticsUpdated. | |
| 35 * @param {string} message Message label. Possible Values are: | |
| 36 * * 'AvailableSpaceUpdated', | |
| 37 * * 'GlobalDataUpdated', | |
| 38 * * 'HostDataUpdated', | |
| 39 * * 'OriginDataUpdated', | |
| 40 * * 'StatisticsUpdated'. | |
| 41 * @param {Object} detail Message specific additional data. | |
| 42 */ | |
| 43 function messageHandler(message, detail) { | |
| 44 var target = null; | |
| 45 switch (message) { | |
| 46 case 'AvailableSpaceUpdated': | |
| 47 target = cr.quota.onAvailableSpaceUpdated; | |
| 48 break; | |
| 49 case 'GlobalDataUpdated': | |
| 50 target = cr.quota.onGlobalDataUpdated; | |
| 51 break; | |
| 52 case 'HostDataUpdated': | |
| 53 target = cr.quota.onHostDataUpdated; | |
| 54 break; | |
| 55 case 'OriginDataUpdated': | |
| 56 target = cr.quota.onOriginDataUpdated; | |
| 57 break; | |
| 58 case 'StatisticsUpdated': | |
| 59 target = cr.quota.onStatisticsUpdated; | |
| 60 break; | |
| 61 default: | |
| 62 console.error('Unknown Message'); | |
| 63 break; | |
| 64 } | |
| 65 if (target) { | |
| 66 var event = cr.doc.createEvent('CustomEvent'); | |
| 67 event.initCustomEvent('update', false, false, detail); | |
| 68 target.dispatchEvent(event); | |
| 69 } | |
| 70 } | |
| 71 | |
| 72 return { | |
| 73 onAvailableSpaceUpdated: new cr.EventTarget(), | |
| 74 onGlobalDataUpdated: new cr.EventTarget(), | |
| 75 onHostDataUpdated: new cr.EventTarget(), | |
| 76 onOriginDataUpdated: new cr.EventTarget(), | |
| 77 onStatisticsUpdated: new cr.EventTarget(), | |
| 78 | |
| 79 requestData: requestData, | |
| 80 messageHandler: messageHandler | |
| 81 }; | |
| 82 }); | |
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Chromium Code Reviews
Issue 7259007:
Revert 90447 - Add chrome://quota-internals/ resources (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/