phaser/docs/Device.js.html
2013-10-25 16:54:40 +01:00

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<h1 class="page-title">Source: system/Device.js</h1>
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<article>
<pre class="sunlight-highlight-javascript linenums">/**
* @author Richard Davey &lt;rich@photonstorm.com>
* @copyright 2013 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* Detects device support capabilities. Using some elements from System.js by MrDoob and Modernizr
*
* @class Phaser.Device
* @constructor
*/
Phaser.Device = function () {
/**
* An optional 'fix' for the horrendous Android stock browser bug https://code.google.com/p/android/issues/detail?id=39247
* @property {boolean} patchAndroidClearRectBug - Description.
* @default
*/
this.patchAndroidClearRectBug = false;
// Operating System
/**
* @property {boolean} desktop - Is running desktop?
* @default
*/
this.desktop = false;
/**
* @property {boolean} iOS - Is running on iOS?
* @default
*/
this.iOS = false;
/**
* @property {boolean} android - Is running on android?
* @default
*/
this.android = false;
/**
* @property {boolean} chromeOS - Is running on chromeOS?
* @default
*/
this.chromeOS = false;
/**
* @property {boolean} linux - Is running on linux?
* @default
*/
this.linux = false;
/**
* @property {boolean} macOS - Is running on macOS?
* @default
*/
this.macOS = false;
/**
* @property {boolean} windows - Is running on windows?
* @default
*/
this.windows = false;
// Features
/**
* @property {boolean} canvas - Is canvas available?
* @default
*/
this.canvas = false;
/**
* @property {boolean} file - Is file available?
* @default
*/
this.file = false;
/**
* @property {boolean} fileSystem - Is fileSystem available?
* @default
*/
this.fileSystem = false;
/**
* @property {boolean} localStorage - Is localStorage available?
* @default
*/
this.localStorage = false;
/**
* @property {boolean} webGL - Is webGL available?
* @default
*/
this.webGL = false;
/**
* @property {boolean} worker - Is worker available?
* @default
*/
this.worker = false;
/**
* @property {boolean} touch - Is touch available?
* @default
*/
this.touch = false;
/**
* @property {boolean} mspointer - Is mspointer available?
* @default
*/
this.mspointer = false;
/**
* @property {boolean} css3D - Is css3D available?
* @default
*/
this.css3D = false;
/**
* @property {boolean} pointerLock - Is Pointer Lock available?
* @default
*/
this.pointerLock = false;
// Browser
/**
* @property {boolean} arora - Is running in arora?
* @default
*/
this.arora = false;
/**
* @property {boolean} chrome - Is running in chrome?
* @default
*/
this.chrome = false;
/**
* @property {boolean} epiphany - Is running in epiphany?
* @default
*/
this.epiphany = false;
/**
* @property {boolean} firefox - Is running in firefox?
* @default
*/
this.firefox = false;
/**
* @property {boolean} ie - Is running in ie?
* @default
*/
this.ie = false;
/**
* @property {number} ieVersion - Version of ie?
* @default
*/
this.ieVersion = 0;
/**
* @property {boolean} mobileSafari - Is running in mobileSafari?
* @default
*/
this.mobileSafari = false;
/**
* @property {boolean} midori - Is running in midori?
* @default
*/
this.midori = false;
/**
* @property {boolean} opera - Is running in opera?
* @default
*/
this.opera = false;
/**
* @property {boolean} safari - Is running in safari?
* @default
*/
this.safari = false;
this.webApp = false;
// Audio
/**
* @property {boolean} audioData - Are Audio tags available?
* @default
*/
this.audioData = false;
/**
* @property {boolean} webAudio - Is the WebAudio API available?
* @default
*/
this.webAudio = false;
/**
* @property {boolean} ogg - Can this device play ogg files?
* @default
*/
this.ogg = false;
/**
* @property {boolean} opus - Can this device play opus files?
* @default
*/
this.opus = false;
/**
* @property {boolean} mp3 - Can this device play mp3 files?
* @default
*/
this.mp3 = false;
/**
* @property {boolean} wav - Can this device play wav files?
* @default
*/
this.wav = false;
/**
* Can this device play m4a files?
* @property {boolean} m4a - True if this device can play m4a files.
* @default
*/
this.m4a = false;
/**
* @property {boolean} webm - Can this device play webm files?
* @default
*/
this.webm = false;
// Device
/**
* @property {boolean} iPhone - Is running on iPhone?
* @default
*/
this.iPhone = false;
/**
* @property {boolean} iPhone4 - Is running on iPhone4?
* @default
*/
this.iPhone4 = false;
/**
* @property {boolean} iPad - Is running on iPad?
* @default
*/
this.iPad = false;
/**
* @property {number} pixelRatio - PixelRatio of the host device?
* @default
*/
this.pixelRatio = 0;
// Run the checks
this._checkAudio();
this._checkBrowser();
this._checkCSS3D();
this._checkDevice();
this._checkFeatures();
this._checkOS();
};
Phaser.Device.prototype = {
/**
* Check which OS is game running on.
* @method Phaser.Device#_checkOS
* @private
*/
_checkOS: function () {
var ua = navigator.userAgent;
if (/Android/.test(ua)) {
this.android = true;
} else if (/CrOS/.test(ua)) {
this.chromeOS = true;
} else if (/iP[ao]d|iPhone/i.test(ua)) {
this.iOS = true;
} else if (/Linux/.test(ua)) {
this.linux = true;
} else if (/Mac OS/.test(ua)) {
this.macOS = true;
} else if (/Windows/.test(ua)) {
this.windows = true;
}
if (this.windows || this.macOS || this.linux) {
this.desktop = true;
}
},
/**
* Check HTML5 features of the host environment.
* @method Phaser.Device#_checkFeatures
* @private
*/
_checkFeatures: function () {
this.canvas = !!window['CanvasRenderingContext2D'];
try {
this.localStorage = !!localStorage.getItem;
} catch (error) {
this.localStorage = false;
}
this.file = !!window['File'] && !!window['FileReader'] && !!window['FileList'] && !!window['Blob'];
this.fileSystem = !!window['requestFileSystem'];
this.webGL = ( function () { try { var canvas = document.createElement( 'canvas' ); return !! window.WebGLRenderingContext && ( canvas.getContext( 'webgl' ) || canvas.getContext( 'experimental-webgl' ) ); } catch( e ) { return false; } } )();
if (this.webGL === null)
{
this.webGL = false;
}
else
{
this.webGL = true;
}
this.worker = !!window['Worker'];
if ('ontouchstart' in document.documentElement || window.navigator.msPointerEnabled) {
this.touch = true;
}
if (window.navigator.msPointerEnabled) {
this.mspointer = true;
}
this.pointerLock = 'pointerLockElement' in document || 'mozPointerLockElement' in document || 'webkitPointerLockElement' in document;
},
/**
* Check what browser is game running in.
* @method Phaser.Device#_checkBrowser
* @private
*/
_checkBrowser: function () {
var ua = navigator.userAgent;
if (/Arora/.test(ua)) {
this.arora = true;
} else if (/Chrome/.test(ua)) {
this.chrome = true;
} else if (/Epiphany/.test(ua)) {
this.epiphany = true;
} else if (/Firefox/.test(ua)) {
this.firefox = true;
} else if (/Mobile Safari/.test(ua)) {
this.mobileSafari = true;
} else if (/MSIE (\d+\.\d+);/.test(ua)) {
this.ie = true;
this.ieVersion = parseInt(RegExp.$1);
} else if (/Midori/.test(ua)) {
this.midori = true;
} else if (/Opera/.test(ua)) {
this.opera = true;
} else if (/Safari/.test(ua)) {
this.safari = true;
}
// WebApp mode in iOS
if (navigator['standalone']) {
this.webApp = true;
}
},
/**
* Check audio support.
* @method Phaser.Device#_checkAudio
* @private
*/
_checkAudio: function () {
this.audioData = !!(window['Audio']);
this.webAudio = !!(window['webkitAudioContext'] || window['AudioContext']);
var audioElement = document.createElement('audio');
var result = false;
try {
if (result = !!audioElement.canPlayType) {
if (audioElement.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/, '')) {
this.ogg = true;
}
if (audioElement.canPlayType('audio/ogg; codecs="opus"').replace(/^no$/, '')) {
this.opus = true;
}
if (audioElement.canPlayType('audio/mpeg;').replace(/^no$/, '')) {
this.mp3 = true;
}
// Mimetypes accepted:
// developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements
// bit.ly/iphoneoscodecs
if (audioElement.canPlayType('audio/wav; codecs="1"').replace(/^no$/, '')) {
this.wav = true;
}
if (audioElement.canPlayType('audio/x-m4a;') || audioElement.canPlayType('audio/aac;').replace(/^no$/, '')) {
this.m4a = true;
}
if (audioElement.canPlayType('audio/webm; codecs="vorbis"').replace(/^no$/, '')) {
this.webm = true;
}
}
} catch (e) {
}
},
/**
* Check PixelRatio of devices.
* @method Phaser.Device#_checkDevice
* @private
*/
_checkDevice: function () {
this.pixelRatio = window['devicePixelRatio'] || 1;
this.iPhone = navigator.userAgent.toLowerCase().indexOf('iphone') != -1;
this.iPhone4 = (this.pixelRatio == 2 && this.iPhone);
this.iPad = navigator.userAgent.toLowerCase().indexOf('ipad') != -1;
},
/**
* Check whether the host environment support 3D CSS.
* @method Phaser.Device#_checkCSS3D
* @private
*/
_checkCSS3D: function () {
var el = document.createElement('p');
var has3d;
var transforms = {
'webkitTransform': '-webkit-transform',
'OTransform': '-o-transform',
'msTransform': '-ms-transform',
'MozTransform': '-moz-transform',
'transform': 'transform'
};
// Add it to the body to get the computed style.
document.body.insertBefore(el, null);
for (var t in transforms) {
if (el.style[t] !== undefined) {
el.style[t] = "translate3d(1px,1px,1px)";
has3d = window.getComputedStyle(el).getPropertyValue(transforms[t]);
}
}
document.body.removeChild(el);
this.css3D = (has3d !== undefined && has3d.length > 0 && has3d !== "none");
},
/**
* Check whether the host environment can play audio.
* @method Phaser.Device#canPlayAudio
* @param {string} type - One of 'mp3, 'ogg', 'm4a', 'wav', 'webm'.
* @return {boolean} True if the given file type is supported by the browser, otherwise false.
*/
canPlayAudio: function (type) {
if (type == 'mp3' && this.mp3)
{
return true;
}
else if (type == 'ogg' && (this.ogg || this.opus))
{
return true;
}
else if (type == 'm4a' && this.m4a)
{
return true;
}
else if (type == 'wav' && this.wav)
{
return true;
}
else if (type == 'webm' && this.webm)
{
return true;
}
return false;
},
/**
* Check whether the console is open.
* @method Phaser.Device#isConsoleOpen
* @return {boolean} True if the browser dev console is open.
*/
isConsoleOpen: function () {
if (window.console && window.console['firebug'])
{
return true;
}
if (window.console)
{
console.profile();
console.profileEnd();
if (console.clear)
{
console.clear();
}
return console['profiles'].length > 0;
}
return false;
}
};
</pre>
</article>
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