91 lines
2.8 KiB
JavaScript
91 lines
2.8 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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this.EXPORTED_SYMBOLS = [ 'GlobalSimulatorScreen' ];
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const Cu = Components.utils;
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Cu.import('resource://gre/modules/XPCOMUtils.jsm');
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Cu.import('resource://gre/modules/Services.jsm');
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this.GlobalSimulatorScreen = {
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mozOrientationLocked: false,
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// Actual orientation of apps
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mozOrientation: 'portrait',
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// The restricted list of actual orientation that can be used
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// if mozOrientationLocked is true
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lockedOrientation: [],
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// The faked screen orientation
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// if screenOrientation doesn't match mozOrientation due
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// to lockedOrientation restriction, the app will be displayed
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// on the side on desktop
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screenOrientation: 'portrait',
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// Updated by screen.js
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width: 0, height: 0,
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lock: function(orientation) {
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this.mozOrientationLocked = true;
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// Normalize to portrait or landscape,
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// i.e. the possible values of screenOrientation
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function normalize(str) {
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if (str.match(/^portrait/)) {
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return 'portrait';
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} else if (str.match(/^landscape/)) {
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return 'landscape';
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} else {
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return 'portrait';
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}
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}
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this.lockedOrientation = orientation.map(normalize);
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this.updateOrientation();
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},
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unlock: function() {
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this.mozOrientationLocked = false;
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this.updateOrientation();
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},
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updateOrientation: function () {
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let orientation = this.screenOrientation;
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// If the orientation is locked, we have to ensure ending up with a value
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// of lockedOrientation. If none of lockedOrientation values matches
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// the screen orientation we just choose the first locked orientation.
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// This will be the precise scenario where the app is displayed on the
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// side on desktop!
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if (this.mozOrientationLocked &&
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this.lockedOrientation.indexOf(this.screenOrientation) == -1) {
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orientation = this.lockedOrientation[0];
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}
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// If the actual orientation changed,
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// we have to fire mozorientation DOM events
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if (this.mozOrientation != orientation) {
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this.mozOrientation = orientation;
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// Notify each app screen object to fire the event
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Services.obs.notifyObservers(null, 'simulator-orientation-change', null);
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}
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// Finally, in any case, we update the window size and orientation
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// (Use wrappedJSObject trick to be able to pass a raw JS object)
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Services.obs.notifyObservers({wrappedJSObject:this}, 'simulator-adjust-window-size', null);
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},
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flipScreen: function() {
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if (this.screenOrientation == 'portrait') {
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this.screenOrientation = 'landscape';
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} else if (this.screenOrientation == 'landscape') {
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this.screenOrientation = 'portrait';
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}
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this.updateOrientation();
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}
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}
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