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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/DOMRequestHelper.jsm");
function log(aMsg) {
//dump("-*- PresentationDeviceInfoManager.js : " + aMsg + "\n");
}
const PRESENTATIONDEVICEINFOMANAGER_CID = Components.ID("{1bd66bef-f643-4be3-b690-0c656353eafd}");
const PRESENTATIONDEVICEINFOMANAGER_CONTRACTID = "@mozilla.org/presentation-device/deviceInfo;1";
XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
"@mozilla.org/childprocessmessagemanager;1",
"nsIMessageSender");
function PresentationDeviceInfoManager() {}
PresentationDeviceInfoManager.prototype = {
__proto__: DOMRequestIpcHelper.prototype,
classID: PRESENTATIONDEVICEINFOMANAGER_CID,
contractID: PRESENTATIONDEVICEINFOMANAGER_CONTRACTID,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupportsWeakReference,
Ci.nsIObserver,
Ci.nsIDOMGlobalPropertyInitializer]),
receiveMessage: function(aMsg) {
if (!aMsg || !aMsg.data) {
return;
}
let data = aMsg.data;
log("receive aMsg: " + aMsg.name);
switch (aMsg.name) {
case "PresentationDeviceInfoManager:OnDeviceChange": {
let detail = {
detail: {
type: data.type,
deviceInfo: data.deviceInfo,
}
};
let event = new this._window.CustomEvent("devicechange", Cu.cloneInto(detail, this._window));
this.__DOM_IMPL__.dispatchEvent(event);
break;
}
case "PresentationDeviceInfoManager:GetAll:Result:Ok": {
let resolver = this.takePromiseResolver(data.requestId);
if (!resolver) {
return;
}
resolver.resolve(Cu.cloneInto(data.devices, this._window));
break;
}
case "PresentationDeviceInfoManager:GetAll:Result:Error": {
let resolver = this.takePromiseResolver(data.requestId);
if (!resolver) {
return;
}
resolver.reject(data.error);
break;
}
}
},
init: function(aWin) {
log("init");
this.initDOMRequestHelper(aWin, [
{name: "PresentationDeviceInfoManager:OnDeviceChange", weakRef: true},
{name: "PresentationDeviceInfoManager:GetAll:Result:Ok", weakRef: true},
{name: "PresentationDeviceInfoManager:GetAll:Result:Error", weakRef: true},
]);
},
uninit: function() {
log("uninit");
let self = this;
this.forEachPromiseResolver(function(aKey) {
self.takePromiseResolver(aKey).reject("PresentationDeviceInfoManager got destroyed");
});
},
get ondevicechange() {
return this.__DOM_IMPL__.getEventHandler("ondevicechange");
},
set ondevicechange(aHandler) {
this.__DOM_IMPL__.setEventHandler("ondevicechange", aHandler);
},
getAll: function() {
log("getAll");
let self = this;
return this.createPromiseWithId(function(aResolverId) {
cpmm.sendAsyncMessage("PresentationDeviceInfoManager:GetAll", {
requestId: aResolverId,
});
});
},
forceDiscovery: function() {
cpmm.sendAsyncMessage("PresentationDeviceInfoManager:ForceDiscovery");
},
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([PresentationDeviceInfoManager]);
|
