75 lines
2 KiB
JavaScript
75 lines
2 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const { Actor } = require("resource://devtools/shared/protocol.js");
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const { deviceSpec } = require("resource://devtools/shared/specs/device.js");
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const {
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DevToolsServer,
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} = require("resource://devtools/server/devtools-server.js");
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const { getSystemInfo } = require("resource://devtools/shared/system.js");
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const { AppConstants } = ChromeUtils.importESModule(
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"resource://gre/modules/AppConstants.sys.mjs",
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{ global: "contextual" }
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);
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exports.DeviceActor = class DeviceActor extends Actor {
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constructor(conn) {
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super(conn, deviceSpec);
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// pageshow and pagehide event release wake lock, so we have to acquire
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// wake lock again by pageshow event
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this._onPageShow = this._onPageShow.bind(this);
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if (this._window) {
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this._window.addEventListener("pageshow", this._onPageShow, true);
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}
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this._acquireWakeLock();
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}
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destroy() {
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super.destroy();
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this._releaseWakeLock();
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if (this._window) {
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this._window.removeEventListener("pageshow", this._onPageShow, true);
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}
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}
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getDescription() {
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return Object.assign({}, getSystemInfo(), {
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canDebugServiceWorkers: true,
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});
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}
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_acquireWakeLock() {
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if (AppConstants.platform !== "android") {
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return;
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}
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const pm = Cc["@mozilla.org/power/powermanagerservice;1"].getService(
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Ci.nsIPowerManagerService
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);
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this._wakelock = pm.newWakeLock("screen", this._window);
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}
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_releaseWakeLock() {
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if (this._wakelock) {
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try {
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this._wakelock.unlock();
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} catch (e) {
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// Ignore error since wake lock is already unlocked
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}
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this._wakelock = null;
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}
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}
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_onPageShow() {
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this._releaseWakeLock();
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this._acquireWakeLock();
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}
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get _window() {
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return Services.wm.getMostRecentWindow(DevToolsServer.chromeWindowType);
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}
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};
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