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| 1 // Copyright 2014 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('chrome.sync.types', function() { | |
| 6 var typeCountersMap = {}; | |
| 7 | |
| 8 /** | |
| 9 * Redraws the counters table taking advantage of the most recent | |
| 10 * available information. | |
| 11 * | |
| 12 * Makes use of typeCountersMap, which is defined in the containing scope. | |
| 13 */ | |
| 14 var refreshTypeCountersDisplay = function() { | |
| 15 var typeCountersArray = []; | |
| 16 | |
| 17 // Transform our map into an array to make jstemplate happy. | |
| 18 Object.keys(typeCountersMap).sort().forEach(function(t) { | |
| 19 typeCountersArray.push({ | |
| 20 type: t, | |
| 21 counters: typeCountersMap[t], | |
| 22 }); | |
| 23 }); | |
| 24 | |
| 25 jstProcess( | |
| 26 new JsEvalContext({ rows: typeCountersArray }), | |
| 27 $('type-counters-table')); | |
| 28 }; | |
| 29 | |
| 30 /** | |
| 31 * Helps to initialize the table by picking up where initTypeCounters() left | |
| 32 * off. That function registers this listener and requests that this event | |
| 33 * be emitted. | |
| 34 * | |
| 35 * @param {!Object} e An event containing the list of known sync types. | |
| 36 */ | |
| 37 var onReceivedListOfTypes = function(e) { | |
| 38 var types = e.details.types; | |
| 39 types.map(function(type) { | |
| 40 if (!typeCountersMap.hasOwnProperty(type)) { | |
| 41 typeCountersMap[type] = {}; | |
| 42 } | |
| 43 }); | |
| 44 chrome.sync.events.removeEventListener( | |
| 45 'onReceivedListOfTypes', | |
| 46 onReceivedListOfTypes); | |
| 47 refreshTypeCountersDisplay(); | |
| 48 }; | |
| 49 | |
| 50 /** | |
| 51 * Callback for receipt of updated per-type counters. | |
| 52 * | |
| 53 * @param {!Object} e An event containing an updated counter. | |
| 54 */ | |
| 55 var onCountersUpdated = function(e) { | |
| 56 var details = e.details; | |
| 57 | |
| 58 var modelType = details.modelType; | |
| 59 var counters = details.counters; | |
| 60 | |
| 61 if (typeCountersMap.hasOwnProperty(modelType)) | |
| 62 for (k in counters) { | |
| 63 typeCountersMap[modelType][k] = counters[k]; | |
| 64 } | |
| 65 refreshTypeCountersDisplay(); | |
| 66 }; | |
| 67 | |
| 68 /** | |
| 69 * Initializes state and callbacks for the per-type counters and status UI. | |
| 70 */ | |
| 71 var initTypeCounters = function() { | |
| 72 chrome.sync.events.addEventListener( | |
| 73 'onCountersUpdated', | |
| 74 onCountersUpdated); | |
| 75 chrome.sync.events.addEventListener( | |
| 76 'onReceivedListOfTypes', | |
| 77 onReceivedListOfTypes); | |
| 78 | |
| 79 chrome.sync.requestListOfTypes(); | |
| 80 chrome.sync.registerForPerTypeCounters(); | |
| 81 }; | |
| 82 | |
| 83 var onLoad = function() { | |
| 84 initTypeCounters(); | |
| 85 }; | |
| 86 | |
| 87 return { | |
| 88 onLoad: onLoad | |
| 89 }; | |
| 90 }); | |
| 91 | |
| 92 document.addEventListener('DOMContentLoaded', chrome.sync.types.onLoad, false); | |
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