1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// require cr.js
// require cr/event_target.js
// require cr/util.js
/**
* Bridge between the browser and the page.
* In this file:
* * define EventTargets to receive message from the browser,
* * dispatch browser messages to EventTarget,
* * define interface to request data to the browser.
*/
cr.define('cr.quota', function() {
'use strict';
/**
* Post requestInfo message to Browser.
*/
function requestInfo() {
chrome.send('requestInfo');
}
/**
* Callback entry point from Browser.
* Messages are Dispatched as Event to:
* * onAvailableSpaceUpdated,
* * onGlobalInfoUpdated,
* * onPerHostInfoUpdated,
* * onPerOriginInfoUpdated,
* * onStatisticsUpdated.
* @param {string} message Message label. Possible Values are:
* * 'AvailableSpaceUpdated',
* * 'GlobalInfoUpdated',
* * 'PerHostInfoUpdated',
* * 'PerOriginInfoUpdated',
* * 'StatisticsUpdated'.
* @param {Object} detail Message specific additional data.
*/
function messageHandler(message, detail) {
var target = null;
switch (message) {
case 'AvailableSpaceUpdated':
target = cr.quota.onAvailableSpaceUpdated;
break;
case 'GlobalInfoUpdated':
target = cr.quota.onGlobalInfoUpdated;
break;
case 'PerHostInfoUpdated':
target = cr.quota.onPerHostInfoUpdated;
break;
case 'PerOriginInfoUpdated':
target = cr.quota.onPerOriginInfoUpdated;
break;
case 'StatisticsUpdated':
target = cr.quota.onStatisticsUpdated;
break;
default:
console.error('Unknown Message');
break;
}
if (target) {
var event = cr.doc.createEvent('CustomEvent');
event.initCustomEvent('update', false, false, detail);
target.dispatchEvent(event);
}
}
return {
onAvailableSpaceUpdated: new cr.EventTarget(),
onGlobalInfoUpdated: new cr.EventTarget(),
onPerHostInfoUpdated: new cr.EventTarget(),
onPerOriginInfoUpdated: new cr.EventTarget(),
onStatisticsUpdated: new cr.EventTarget(),
requestInfo: requestInfo,
messageHandler: messageHandler
};
});
|
