95 lines
2.9 KiB
JavaScript
95 lines
2.9 KiB
JavaScript
"use strict";
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const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
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Cu.import("resource://gre/modules/ExtensionUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "EventEmitter",
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"resource://devtools/shared/event-emitter.js");
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XPCOMUtils.defineLazyServiceGetter(this, "idleService",
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"@mozilla.org/widget/idleservice;1",
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"nsIIdleService");
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const {
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SingletonEventManager,
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} = ExtensionUtils;
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// WeakMap[Extension -> Object]
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var observersMap = new WeakMap();
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function getObserverInfo(extension, context) {
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let observerInfo = observersMap.get(extension);
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if (!observerInfo) {
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observerInfo = {
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observer: null,
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detectionInterval: 60,
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};
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observersMap.set(extension, observerInfo);
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context.callOnClose({
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close: () => {
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let {observer, detectionInterval} = observersMap.get(extension);
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if (observer) {
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idleService.removeIdleObserver(observer, detectionInterval);
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}
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observersMap.delete(extension);
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},
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});
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}
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return observerInfo;
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}
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function getObserver(extension, context) {
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let observerInfo = getObserverInfo(extension, context);
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let {observer, detectionInterval} = observerInfo;
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if (!observer) {
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observer = {
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observe: function(subject, topic, data) {
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if (topic == "idle" || topic == "active") {
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this.emit("stateChanged", topic);
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}
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},
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};
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EventEmitter.decorate(observer);
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idleService.addIdleObserver(observer, detectionInterval);
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observerInfo.observer = observer;
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observerInfo.detectionInterval = detectionInterval;
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}
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return observer;
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}
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function setDetectionInterval(extension, context, newInterval) {
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let observerInfo = getObserverInfo(extension, context);
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let {observer, detectionInterval} = observerInfo;
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if (observer) {
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idleService.removeIdleObserver(observer, detectionInterval);
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idleService.addIdleObserver(observer, newInterval);
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}
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observerInfo.detectionInterval = newInterval;
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}
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extensions.registerSchemaAPI("idle", "addon_parent", context => {
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let {extension} = context;
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return {
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idle: {
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queryState: function(detectionIntervalInSeconds) {
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if (idleService.idleTime < detectionIntervalInSeconds * 1000) {
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return Promise.resolve("active");
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}
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return Promise.resolve("idle");
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},
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setDetectionInterval: function(detectionIntervalInSeconds) {
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setDetectionInterval(extension, context, detectionIntervalInSeconds);
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},
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onStateChanged: new SingletonEventManager(context, "idle.onStateChanged", fire => {
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let listener = (event, data) => {
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context.runSafe(fire, data);
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};
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getObserver(extension, context).on("stateChanged", listener);
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return () => {
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getObserver(extension, context).off("stateChanged", listener);
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};
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}).api(),
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},
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};
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});
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