2dada8f365
In a following patch, all DevTools moz.build files will use DevToolsModules to install JS modules at a path that corresponds directly to their source tree location. Here we rewrite all require and import calls to match the new location that these files are installed to.
82 lines
2.4 KiB
JavaScript
82 lines
2.4 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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var { Ci } = require("chrome");
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var promise = require("promise");
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const FRAME_SCRIPT =
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"resource://gre/modules/devtools/shared/touch/simulator-content.js";
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var trackedBrowsers = new WeakMap();
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var savedTouchEventsEnabled =
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Services.prefs.getIntPref("dom.w3c_touch_events.enabled");
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/**
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* Simulate touch events for platforms where they aren't generally available.
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* Defers to the `simulator-content.js` frame script to perform the real work.
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*/
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function TouchEventSimulator(browser) {
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// Returns an already instantiated simulator for this browser
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let simulator = trackedBrowsers.get(browser);
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if (simulator) {
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return simulator;
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}
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let mm = browser.messageManager;
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if (!mm) {
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// Maybe browser is an iframe
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mm = browser.QueryInterface(Ci.nsIFrameLoaderOwner)
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.frameLoader.messageManager;
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}
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mm.loadFrameScript(FRAME_SCRIPT, true);
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simulator = {
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enabled: false,
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start() {
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if (this.enabled) {
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return promise.resolve({ isReloadNeeded: false });
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}
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this.enabled = true;
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let deferred = promise.defer();
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let isReloadNeeded =
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Services.prefs.getIntPref("dom.w3c_touch_events.enabled") != 1;
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Services.prefs.setIntPref("dom.w3c_touch_events.enabled", 1);
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let onStarted = () => {
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mm.removeMessageListener("TouchEventSimulator:Started", onStarted);
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deferred.resolve({ isReloadNeeded });
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};
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mm.addMessageListener("TouchEventSimulator:Started", onStarted);
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mm.sendAsyncMessage("TouchEventSimulator:Start");
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return deferred.promise;
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},
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stop() {
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if (!this.enabled) {
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return promise.resolve();
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}
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this.enabled = false;
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let deferred = promise.defer();
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Services.prefs.setIntPref("dom.w3c_touch_events.enabled",
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savedTouchEventsEnabled);
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let onStopped = () => {
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mm.removeMessageListener("TouchEventSimulator:Stopped", onStopped);
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deferred.resolve();
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};
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mm.addMessageListener("TouchEventSimulator:Stopped", onStopped);
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mm.sendAsyncMessage("TouchEventSimulator:Stop");
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return deferred.promise;
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}
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};
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trackedBrowsers.set(browser, simulator);
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return simulator;
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}
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exports.TouchEventSimulator = TouchEventSimulator;
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