113 lines
3.3 KiB
JavaScript
113 lines
3.3 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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XPCOMUtils.defineLazyServiceGetter(
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this,
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"idleService",
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"@mozilla.org/widget/useridleservice;1",
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"nsIUserIdleService"
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);
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var { DefaultWeakMap } = ExtensionUtils;
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// WeakMap[Extension -> Object]
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const idleObserversMap = new DefaultWeakMap(() => {
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return {
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observer: null,
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detectionInterval: 60,
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};
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});
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const getIdleObserver = extension => {
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let observerInfo = idleObserversMap.get(extension);
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let { observer, detectionInterval } = observerInfo;
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let interval =
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extension.startupData?.idleDetectionInterval || detectionInterval;
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if (!observer) {
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observer = new (class extends ExtensionCommon.EventEmitter {
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observe(subject, topic) {
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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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idleService.addIdleObserver(observer, interval);
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observerInfo.observer = observer;
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observerInfo.detectionInterval = interval;
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}
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return observer;
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};
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this.idle = class extends ExtensionAPIPersistent {
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PERSISTENT_EVENTS = {
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onStateChanged({ fire }) {
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let { extension } = this;
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let listener = (event, data) => {
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fire.sync(data);
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};
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getIdleObserver(extension).on("stateChanged", listener);
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return {
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async unregister() {
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let observerInfo = idleObserversMap.get(extension);
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let { observer, detectionInterval } = observerInfo;
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if (observer) {
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observer.off("stateChanged", listener);
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if (!observer.has("stateChanged")) {
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idleService.removeIdleObserver(observer, detectionInterval);
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observerInfo.observer = null;
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}
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}
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},
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convert(_fire) {
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fire = _fire;
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},
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};
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},
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};
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getAPI(context) {
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let { extension } = context;
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let self = this;
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return {
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idle: {
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queryState(detectionIntervalInSeconds) {
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if (idleService.idleTime < detectionIntervalInSeconds * 1000) {
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return "active";
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}
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return "idle";
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},
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setDetectionInterval(detectionIntervalInSeconds) {
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let observerInfo = idleObserversMap.get(extension);
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let { observer, detectionInterval } = observerInfo;
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if (detectionInterval == detectionIntervalInSeconds) {
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return;
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}
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if (observer) {
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idleService.removeIdleObserver(observer, detectionInterval);
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idleService.addIdleObserver(observer, detectionIntervalInSeconds);
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}
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observerInfo.detectionInterval = detectionIntervalInSeconds;
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// There is no great way to modify a persistent listener param, but we
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// need to keep this for the startup listener.
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if (!extension.persistentBackground) {
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extension.startupData.idleDetectionInterval =
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detectionIntervalInSeconds;
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extension.saveStartupData();
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}
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},
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onStateChanged: new EventManager({
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context,
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module: "idle",
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event: "onStateChanged",
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extensionApi: self,
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}).api(),
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},
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};
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}
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};
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