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/* 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"
);
var { DefaultWeakMap } = ExtensionUtils;
// WeakMap[Extension -> Object]
const idleObserversMap = new DefaultWeakMap(() => {
return {
observer: null,
detectionInterval: 60,
};
});
const getIdleObserver = extension => {
let observerInfo = idleObserversMap.get(extension);
let { observer, detectionInterval } = observerInfo;
let interval =
extension.startupData?.idleDetectionInterval || detectionInterval;
if (!observer) {
observer = new (class extends ExtensionCommon.EventEmitter {
observe(subject, topic, data) {
if (topic == "idle" || topic == "active") {
this.emit("stateChanged", topic);
}
}
})();
idleService.addIdleObserver(observer, interval);
observerInfo.observer = observer;
observerInfo.detectionInterval = interval;
}
return observer;
};
this.idle = class extends ExtensionAPIPersistent {
PERSISTENT_EVENTS = {
onStateChanged({ fire }) {
let { extension } = this;
let listener = (event, data) => {
fire.sync(data);
};
getIdleObserver(extension).on("stateChanged", listener);
return {
async unregister() {
let observerInfo = idleObserversMap.get(extension);
let { observer, detectionInterval } = observerInfo;
if (observer) {
observer.off("stateChanged", listener);
if (!observer.has("stateChanged")) {
idleService.removeIdleObserver(observer, detectionInterval);
observerInfo.observer = null;
}
}
},
convert(_fire) {
fire = _fire;
},
};
},
};
getAPI(context) {
let { extension } = context;
let self = this;
return {
idle: {
queryState(detectionIntervalInSeconds) {
if (idleService.idleTime < detectionIntervalInSeconds * 1000) {
return "active";
}
return "idle";
},
setDetectionInterval(detectionIntervalInSeconds) {
let observerInfo = idleObserversMap.get(extension);
let { observer, detectionInterval } = observerInfo;
if (detectionInterval == detectionIntervalInSeconds) {
return;
}
if (observer) {
idleService.removeIdleObserver(observer, detectionInterval);
idleService.addIdleObserver(observer, detectionIntervalInSeconds);
}
observerInfo.detectionInterval = detectionIntervalInSeconds;
// There is no great way to modify a persistent listener param, but we
// need to keep this for the startup listener.
if (!extension.persistentBackground) {
extension.startupData.idleDetectionInterval =
detectionIntervalInSeconds;
extension.saveStartupData();
}
},
onStateChanged: new EventManager({
context,
module: "idle",
event: "onStateChanged",
extensionApi: self,
}).api(),
},
};
}
};
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