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107 lines
3.6 KiB
107 lines
3.6 KiB
15 years ago
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// ========================= getStyleProperty by kangax ===============================
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var getStyleProperty = (function(){
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var prefixes = ['Moz', 'Webkit', 'Khtml', 'O', 'Ms'];
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var _cache = { };
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function getStyleProperty(propName, element) {
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element = element || document.documentElement;
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var style = element.style,
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prefixed,
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uPropName;
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// check cache only when no element is given
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if (arguments.length == 1 && typeof _cache[propName] == 'string') {
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return _cache[propName];
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}
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// test standard property first
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if (typeof style[propName] == 'string') {
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return (_cache[propName] = propName);
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}
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// console.log('getting prop', propName)
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// capitalize
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uPropName = propName.charAt(0).toUpperCase() + propName.slice(1);
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// test vendor specific properties
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for (var i=0, l=prefixes.length; i<l; i++) {
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prefixed = prefixes[i] + uPropName;
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if (typeof style[prefixed] == 'string') {
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return (_cache[propName] = prefixed);
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}
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}
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}
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return getStyleProperty;
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})();
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// ========================= miniModernizr ===============================
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// <3<3<3 and thanks to Faruk and Paul for doing the heavy lifting
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if ( !window.Modernizr ) {
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var miniModernizr = {},
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vendorCSSPrefixes = ' -o- -moz- -ms- -webkit- -khtml- '.split(' '),
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classes = [],
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docElement = document.documentElement,
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tests = {
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csstransforms : function() {
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return !!getStyleProperty('transform');
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},
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csstransforms3d : function() {
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var ret = !!getStyleProperty('perspective');
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if (ret){
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var st = document.createElement('style'),
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div = document.createElement('div');
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st.textContent = '@media ('+vendorCSSPrefixes.join('transform-3d),(') +
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'modernizr){#modernizr{height:3px}}';
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document.getElementsByTagName('head')[0].appendChild(st);
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div.id = 'modernizr';
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docElement.appendChild(div);
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ret = div.offsetHeight === 3;
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st.parentNode.removeChild(st);
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div.parentNode.removeChild(div);
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}
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return ret;
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},
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csstransitions : function() {
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return !!getStyleProperty('transitionProperty');
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}
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};
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// hasOwnProperty shim by kangax needed for Safari 2.0 support
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var _hasOwnProperty = ({}).hasOwnProperty, hasOwnProperty;
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if (typeof _hasOwnProperty !== 'undefined' && typeof _hasOwnProperty.call !== 'undefined') {
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hasOwnProperty = function (object, property) {
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return _hasOwnProperty.call(object, property);
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};
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}
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else {
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hasOwnProperty = function (object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
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return ((property in object) && typeof object.constructor.prototype[property] === 'undefined');
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};
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}
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// Run through all tests and detect their support in the current UA.
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for ( var feature in tests ) {
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if ( hasOwnProperty( tests, feature ) ) {
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// run the test, throw the return value into the Modernizr,
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// then based on that boolean, define an appropriate className
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// and push it into an array of classes we'll join later.
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var test = tests[ feature ]();
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miniModernizr[ feature.toLowerCase() ] = test;
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var className = ( test ? '' : 'no-' ) + feature.toLowerCase()
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classes.push( className );
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}
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}
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// Add the new classes to the <html> element.
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docElement.className += ' ' + classes.join( ' ' );
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window.Modernizr = miniModernizr;
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}
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