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+Sencha Documentation Project/**
+ * @class Ext.is
+ *
+ * Determines information about the current platform the application is running on.
+ *
+ * @singleton
+ */
+Ext.is = {
+ init : function(navigator) {
+ var platforms = this.platforms,
+ ln = platforms.length,
+ i, platform;
+
+ navigator = navigator || window.navigator;
+
+ for (i = 0; i < ln; i++) {
+ platform = platforms[i];
+ this[platform.identity] = platform.regex.test(navigator[platform.property]);
+ }
+
+ /**
+ * @property Desktop True if the browser is running on a desktop machine
+ * @type {Boolean}
+ */
+ this.Desktop = this.Mac || this.Windows || (this.Linux && !this.Android);
+ /**
+ * @property Tablet True if the browser is running on a tablet (iPad)
+ */
+ this.Tablet = this.iPad;
+ /**
+ * @property Phone True if the browser is running on a phone.
+ * @type {Boolean}
+ */
+ this.Phone = !this.Desktop && !this.Tablet;
+ /**
+ * @property iOS True if the browser is running on iOS
+ * @type {Boolean}
+ */
+ this.iOS = this.iPhone || this.iPad || this.iPod;
+
+ /**
+ * @property Standalone Detects when application has been saved to homescreen.
+ * @type {Boolean}
+ */
+ this.Standalone = !!window.navigator.standalone;
+ },
+
+ /**
+ * @property iPhone True when the browser is running on a iPhone
+ * @type {Boolean}
+ */
+ platforms: [{
+ property: 'platform',
+ regex: /iPhone/i,
+ identity: 'iPhone'
+ },
+
+ /**
+ * @property iPod True when the browser is running on a iPod
+ * @type {Boolean}
+ */
+ {
+ property: 'platform',
+ regex: /iPod/i,
+ identity: 'iPod'
+ },
+
+ /**
+ * @property iPad True when the browser is running on a iPad
+ * @type {Boolean}
+ */
+ {
+ property: 'userAgent',
+ regex: /iPad/i,
+ identity: 'iPad'
+ },
+
+ /**
+ * @property Blackberry True when the browser is running on a Blackberry
+ * @type {Boolean}
+ */
+ {
+ property: 'userAgent',
+ regex: /Blackberry/i,
+ identity: 'Blackberry'
+ },
+
+ /**
+ * @property Android True when the browser is running on an Android device
+ * @type {Boolean}
+ */
+ {
+ property: 'userAgent',
+ regex: /Android/i,
+ identity: 'Android'
+ },
+
+ /**
+ * @property Mac True when the browser is running on a Mac
+ * @type {Boolean}
+ */
+ {
+ property: 'platform',
+ regex: /Mac/i,
+ identity: 'Mac'
+ },
+
+ /**
+ * @property Windows True when the browser is running on Windows
+ * @type {Boolean}
+ */
+ {
+ property: 'platform',
+ regex: /Win/i,
+ identity: 'Windows'
+ },
+
+ /**
+ * @property Linux True when the browser is running on Linux
+ * @type {Boolean}
+ */
+ {
+ property: 'platform',
+ regex: /Linux/i,
+ identity: 'Linux'
+ }]
+};
+
+Ext.is.init();
+
+/**
+ * @class Ext.supports
+ *
+ * Determines information about features are supported in the current environment
+ *
+ * @singleton
+ */
+Ext.supports = {
+ init : function() {
+ var doc = document,
+ div = doc.createElement('div'),
+ tests = this.tests,
+ ln = tests.length,
+ i, test;
+
+ div.innerHTML = [
+ '<div style="height:30px;width:50px;">',
+ '<div style="height:20px;width:20px;"></div>',
+ '</div>',
+ '<div style="width: 200px; height: 200px; position: relative; padding: 5px;">',
+ '<div style="position: absolute; top: 0; left: 0; width: 100%; height: 100%;"></div>',
+ '</div>',
+ '<div style="float:left; background-color:transparent;"></div>'
+ ].join('');
+
+ doc.body.appendChild(div);
+
+ for (i = 0; i < ln; i++) {
+ test = tests[i];
+ this[test.identity] = test.fn.call(this, doc, div);
+ }
+
+ doc.body.removeChild(div);
+ },
+
+ /**
+ * @property CSS3BoxShadow True if document environment supports the CSS3 box-shadow style.
+ * @type {Boolean}
+ */
+ CSS3BoxShadow: Ext.isDefined(document.documentElement.style.boxShadow),
+
+ /**
+ * @property ClassList True if document environment supports the HTML5 classList API.
+ * @type {Boolean}
+ */
+ ClassList: !!document.documentElement.classList,
+
+ /**
+ * @property OrientationChange True if the device supports orientation change
+ * @type {Boolean}
+ */
+ OrientationChange: ((typeof window.orientation != 'undefined') && ('onorientationchange' in window)),
+
+ /**
+ * @property DeviceMotion True if the device supports device motion (acceleration and rotation rate)
+ * @type {Boolean}
+ */
+ DeviceMotion: ('ondevicemotion' in window),
+
+ /**
+ * @property Touch True if the device supports touch
+ * @type {Boolean}
+ */
+ // is.Desktop is needed due to the bug in Chrome 5.0.375, Safari 3.1.2
+ // and Safari 4.0 (they all have 'ontouchstart' in the window object).
+ Touch: ('ontouchstart' in window) && (!Ext.is.Desktop),
+
+ tests: [
+ /**
+ * @property Transitions True if the device supports CSS3 Transitions
+ * @type {Boolean}
+ */
+ {
+ identity: 'Transitions',
+ fn: function(doc, div) {
+ var prefix = [
+ 'webkit',
+ 'Moz',
+ 'o',
+ 'ms',
+ 'khtml'
+ ],
+ TE = 'TransitionEnd',
+ transitionEndName = [
+ prefix[0] + TE,
+ 'transitionend', //Moz bucks the prefixing convention
+ prefix[2] + TE,
+ prefix[3] + TE,
+ prefix[4] + TE
+ ],
+ ln = prefix.length,
+ i = 0,
+ out = false;
+ div = Ext.get(div);
+ for (; i < ln; i++) {
+ if (div.getStyle(prefix[i] + "TransitionProperty")) {
+ Ext.supports.CSS3Prefix = prefix[i];
+ Ext.supports.CSS3TransitionEnd = transitionEndName[i];
+ out = true;
+ break;
+ }
+ }
+ return out;
+ }
+ },
+
+ /**
+ * @property RightMargin True if the device supports right margin.
+ * See https://bugs.webkit.org/show_bug.cgi?id=13343 for why this is needed.
+ * @type {Boolean}
+ */
+ {
+ identity: 'RightMargin',
+ fn: function(doc, div, view) {
+ view = doc.defaultView;
+ return !(view && view.getComputedStyle(div.firstChild.firstChild, null).marginRight != '0px');
+ }
+ },
+
+ /**
+ * @property TransparentColor True if the device supports transparent color
+ * @type {Boolean}
+ */
+ {
+ identity: 'TransparentColor',
+ fn: function(doc, div, view) {
+ view = doc.defaultView;
+ return !(view && view.getComputedStyle(div.lastChild, null).backgroundColor != 'transparent');
+ }
+ },
+
+ /**
+ * @property ComputedStyle True if the browser supports document.defaultView.getComputedStyle()
+ * @type {Boolean}
+ */
+ {
+ identity: 'ComputedStyle',
+ fn: function(doc, div, view) {
+ view = doc.defaultView;
+ return view && view.getComputedStyle;
+ }
+ },
+
+ /**
+ * @property SVG True if the device supports SVG
+ * @type {Boolean}
+ */
+ {
+ identity: 'Svg',
+ fn: function(doc) {
+ return !!doc.createElementNS && !!doc.createElementNS( "http:/" + "/www.w3.org/2000/svg", "svg").createSVGRect;
+ }
+ },
+
+ /**
+ * @property Canvas True if the device supports Canvas
+ * @type {Boolean}
+ */
+ {
+ identity: 'Canvas',
+ fn: function(doc) {
+ return !!doc.createElement('canvas').getContext;
+ }
+ },
+
+ /**
+ * @property VML True if the device supports VML
+ * @type {Boolean}
+ */
+ {
+ identity: 'Vml',
+ fn: function(doc) {
+ var d = doc.createElement("div");
+ d.innerHTML = "<!--[if vml]><br><br><![endif]-->";
+ return (d.childNodes.length == 2);
+ }
+ },
+
+ /**
+ * @property Float True if the device supports CSS float
+ * @type {Boolean}
+ */
+ {
+ identity: 'Float',
+ fn: function(doc, div) {
+ return !!div.lastChild.style.cssFloat;
+ }
+ },
+
+ /**
+ * @property AudioTag True if the device supports the HTML5 audio tag
+ * @type {Boolean}
+ */
+ {
+ identity: 'AudioTag',
+ fn: function(doc) {
+ return !!doc.createElement('audio').canPlayType;
+ }
+ },
+
+ /**
+ * @property History True if the device supports HTML5 history
+ * @type {Boolean}
+ */
+ {
+ identity: 'History',
+ fn: function() {
+ return !!(window.history && history.pushState);
+ }
+ },
+
+ /**
+ * @property CSS3DTransform True if the device supports CSS3DTransform
+ * @type {Boolean}
+ */
+ {
+ identity: 'CSS3DTransform',
+ fn: function() {
+ return (typeof WebKitCSSMatrix != 'undefined' && new WebKitCSSMatrix().hasOwnProperty('m41'));
+ }
+ },
+
+ /**
+ * @property CSS3LinearGradient True if the device supports CSS3 linear gradients
+ * @type {Boolean}
+ */
+ {
+ identity: 'CSS3LinearGradient',
+ fn: function(doc, div) {
+ var property = 'background-image:',
+ webkit = '-webkit-gradient(linear, left top, right bottom, from(black), to(white))',
+ w3c = 'linear-gradient(left top, black, white)',
+ moz = '-moz-' + w3c,
+ options = [property + webkit, property + w3c, property + moz];
+
+ div.style.cssText = options.join(';');
+
+ return ("" + div.style.backgroundImage).indexOf('gradient') !== -1;
+ }
+ },
+
+ /**
+ * @property CSS3BorderRadius True if the device supports CSS3 border radius
+ * @type {Boolean}
+ */
+ {
+ identity: 'CSS3BorderRadius',
+ fn: function(doc, div) {
+ var domPrefixes = ['borderRadius', 'BorderRadius', 'MozBorderRadius', 'WebkitBorderRadius', 'OBorderRadius', 'KhtmlBorderRadius'],
+ pass = false,
+ i;
+ for (i = 0; i < domPrefixes.length; i++) {
+ if (document.body.style[domPrefixes[i]] !== undefined) {
+ return true;
+ }
+ }
+ return pass;
+ }
+ },
+
+ /**
+ * @property GeoLocation True if the device supports GeoLocation
+ * @type {Boolean}
+ */
+ {
+ identity: 'GeoLocation',
+ fn: function() {
+ return (typeof navigator != 'undefined' && typeof navigator.geolocation != 'undefined') || (typeof google != 'undefined' && typeof google.gears != 'undefined');
+ }
+ },
+ /**
+ * @property MouseEnterLeave True if the browser supports mouseenter and mouseleave events
+ * @type {Boolean}
+ */
+ {
+ identity: 'MouseEnterLeave',
+ fn: function(doc, div){
+ return ('onmouseenter' in div && 'onmouseleave' in div);
+ }
+ },
+ /**
+ * @property MouseWheel True if the browser supports the mousewheel event
+ * @type {Boolean}
+ */
+ {
+ identity: 'MouseWheel',
+ fn: function(doc, div) {
+ return ('onmousewheel' in div);
+ }
+ },
+ /**
+ * @property Opacity True if the browser supports normal css opacity
+ * @type {Boolean}
+ */
+ {
+ identity: 'Opacity',
+ fn: function(doc, div){
+ // Not a strict equal comparison in case opacity can be converted to a number.
+ if (Ext.isIE6 || Ext.isIE7 || Ext.isIE8) {
+ return false;
+ }
+ div.firstChild.style.cssText = 'opacity:0.73';
+ return div.firstChild.style.opacity == '0.73';
+ }
+ },
+ /**
+ * @property Placeholder True if the browser supports the HTML5 placeholder attribute on inputs
+ * @type {Boolean}
+ */
+ {
+ identity: 'Placeholder',
+ fn: function(doc) {
+ return 'placeholder' in doc.createElement('input');
+ }
+ },
+
+ /**
+ * @property Direct2DBug True if when asking for an element's dimension via offsetWidth or offsetHeight,
+ * getBoundingClientRect, etc. the browser returns the subpixel width rounded to the nearest pixel.
+ * @type {Boolean}
+ */
+ {
+ identity: 'Direct2DBug',
+ fn: function() {
+ return Ext.isString(document.body.style.msTransformOrigin);
+ }
+ },
+ /**
+ * @property BoundingClientRect True if the browser supports the getBoundingClientRect method on elements
+ * @type {Boolean}
+ */
+ {
+ identity: 'BoundingClientRect',
+ fn: function(doc, div) {
+ return Ext.isFunction(div.getBoundingClientRect);
+ }
+ },
+ {
+ identity: 'IncludePaddingInWidthCalculation',
+ fn: function(doc, div){
+ var el = Ext.get(div.childNodes[1].firstChild);
+ return el.getWidth() == 210;
+ }
+ },
+ {
+ identity: 'IncludePaddingInHeightCalculation',
+ fn: function(doc, div){
+ var el = Ext.get(div.childNodes[1].firstChild);
+ return el.getHeight() == 210;
+ }
+ },
+
+ /**
+ * @property ArraySort True if the Array sort native method isn't bugged.
+ * @type {Boolean}
+ */
+ {
+ identity: 'ArraySort',
+ fn: function() {
+ var a = [1,2,3,4,5].sort(function(){ return 0; });
+ return a[0] === 1 && a[1] === 2 && a[2] === 3 && a[3] === 4 && a[4] === 5;
+ }
+ },
+ /**
+ * @property Range True if browser support document.createRange native method.
+ * @type {Boolean}
+ */
+ {
+ identity: 'Range',
+ fn: function() {
+ return !!document.createRange;
+ }
+ },
+ /**
+ * @property CreateContextualFragment True if browser support CreateContextualFragment range native methods.
+ * @type {Boolean}
+ */
+ {
+ identity: 'CreateContextualFragment',
+ fn: function() {
+ var range = Ext.supports.Range ? document.createRange() : false;
+
+ return range && !!range.createContextualFragment;
+ }
+ }
+
+ ]
+};
+
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