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
|
/* 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";
XPCOMUtils.defineLazyServiceGetter(
this,
"idleService",
"@mozilla.org/widget/useridleservice;1",
"nsIUserIdleService"
);
// WeakMap[Extension -> Object]
let observersMap = new WeakMap();
const getIdleObserverInfo = (extension, context) => {
let observerInfo = observersMap.get(extension);
if (!observerInfo) {
observerInfo = {
observer: null,
detectionInterval: 60,
};
observersMap.set(extension, observerInfo);
context.callOnClose({
close: () => {
let { observer, detectionInterval } = observersMap.get(extension);
if (observer) {
idleService.removeIdleObserver(observer, detectionInterval);
}
observersMap.delete(extension);
},
});
}
return observerInfo;
};
const getIdleObserver = (extension, context) => {
let observerInfo = getIdleObserverInfo(extension, context);
let { observer, detectionInterval } = observerInfo;
if (!observer) {
observer = new (class extends ExtensionCommon.EventEmitter {
observe(subject, topic, data) {
if (topic == "idle" || topic == "active") {
this.emit("stateChanged", topic);
}
}
})();
idleService.addIdleObserver(observer, detectionInterval);
observerInfo.observer = observer;
observerInfo.detectionInterval = detectionInterval;
}
return observer;
};
const setDetectionInterval = (extension, context, newInterval) => {
let observerInfo = getIdleObserverInfo(extension, context);
let { observer, detectionInterval } = observerInfo;
if (observer) {
idleService.removeIdleObserver(observer, detectionInterval);
idleService.addIdleObserver(observer, newInterval);
}
observerInfo.detectionInterval = newInterval;
};
this.idle = class extends ExtensionAPI {
getAPI(context) {
let { extension } = context;
return {
idle: {
queryState: function(detectionIntervalInSeconds) {
if (idleService.idleTime < detectionIntervalInSeconds * 1000) {
return Promise.resolve("active");
}
return Promise.resolve("idle");
},
setDetectionInterval: function(detectionIntervalInSeconds) {
setDetectionInterval(extension, context, detectionIntervalInSeconds);
},
onStateChanged: new EventManager({
context,
name: "idle.onStateChanged",
register: fire => {
let listener = (event, data) => {
fire.sync(data);
};
getIdleObserver(extension, context).on("stateChanged", listener);
return () => {
getIdleObserver(extension, context).off("stateChanged", listener);
};
},
}).api(),
},
};
}
};
|
