michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: this.EXPORTED_SYMBOLS = [ 'GlobalSimulatorScreen' ];
michael@0: 
michael@0: const Cu = Components.utils;
michael@0: 
michael@0: Cu.import('resource://gre/modules/XPCOMUtils.jsm');
michael@0: Cu.import('resource://gre/modules/Services.jsm');
michael@0: 
michael@0: this.GlobalSimulatorScreen = {
michael@0:   mozOrientationLocked: false,
michael@0: 
michael@0:   // Actual orientation of apps
michael@0:   mozOrientation: 'portrait',
michael@0: 
michael@0:   // The restricted list of actual orientation that can be used
michael@0:   // if mozOrientationLocked is true
michael@0:   lockedOrientation: [],
michael@0: 
michael@0:   // The faked screen orientation
michael@0:   // if screenOrientation doesn't match mozOrientation due
michael@0:   // to lockedOrientation restriction, the app will be displayed
michael@0:   // on the side on desktop
michael@0:   screenOrientation: 'portrait',
michael@0: 
michael@0:   // Updated by screen.js
michael@0:   width: 0, height: 0,
michael@0: 
michael@0:   lock: function(orientation) {
michael@0:     this.mozOrientationLocked = true;
michael@0: 
michael@0:     // Normalize to portrait or landscape,
michael@0:     // i.e. the possible values of screenOrientation
michael@0:     function normalize(str) {
michael@0:       if (str.match(/^portrait/)) {
michael@0:         return 'portrait';
michael@0:       } else if (str.match(/^landscape/)) {
michael@0:         return 'landscape';
michael@0:       } else {
michael@0:         return 'portrait';
michael@0:       }
michael@0:     }
michael@0:     this.lockedOrientation = orientation.map(normalize);
michael@0: 
michael@0:     this.updateOrientation();
michael@0:   },
michael@0: 
michael@0:   unlock: function() {
michael@0:     this.mozOrientationLocked = false;
michael@0:     this.updateOrientation();
michael@0:   },
michael@0: 
michael@0:   updateOrientation: function () {
michael@0:     let orientation = this.screenOrientation;
michael@0: 
michael@0:     // If the orientation is locked, we have to ensure ending up with a value
michael@0:     // of lockedOrientation. If none of lockedOrientation values matches
michael@0:     // the screen orientation we just choose the first locked orientation.
michael@0:     // This will be the precise scenario where the app is displayed on the
michael@0:     // side on desktop!
michael@0:     if (this.mozOrientationLocked &&
michael@0:         this.lockedOrientation.indexOf(this.screenOrientation) == -1) {
michael@0:       orientation = this.lockedOrientation[0];
michael@0:     }
michael@0: 
michael@0:     // If the actual orientation changed,
michael@0:     // we have to fire mozorientation DOM events
michael@0:     if (this.mozOrientation != orientation) {
michael@0:       this.mozOrientation = orientation;
michael@0: 
michael@0:       // Notify each app screen object to fire the event
michael@0:       Services.obs.notifyObservers(null, 'simulator-orientation-change', null);
michael@0:     }
michael@0: 
michael@0:     // Finally, in any case, we update the window size and orientation
michael@0:     // (Use wrappedJSObject trick to be able to pass a raw JS object)
michael@0:     Services.obs.notifyObservers({wrappedJSObject:this}, 'simulator-adjust-window-size', null);
michael@0:   },
michael@0: 
michael@0:   flipScreen: function() {
michael@0:     if (this.screenOrientation == 'portrait') {
michael@0:       this.screenOrientation = 'landscape';
michael@0:     } else if (this.screenOrientation == 'landscape') {
michael@0:       this.screenOrientation = 'portrait';
michael@0:     }
michael@0:     this.updateOrientation();
michael@0:   }
michael@0: }