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47 lines
1.4 KiB
JavaScript
47 lines
1.4 KiB
JavaScript
/*!
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{
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"name": "CSS Gradients",
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"caniuse": "css-gradients",
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"property": "cssgradients",
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"tags": ["css"],
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"knownBugs": ["False-positives on webOS (https://github.com/Modernizr/Modernizr/issues/202)"],
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"notes": [{
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"name": "Webkit Gradient Syntax",
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"href": "https://webkit.org/blog/175/introducing-css-gradients/"
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}, {
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"name": "Linear Gradient Syntax",
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"href": "https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient"
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}, {
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"name": "W3C Spec",
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"href": "https://drafts.csswg.org/css-images-3/#gradients"
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}]
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}
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!*/
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define(['Modernizr', 'prefixes', 'createElement'], function(Modernizr, prefixes, createElement) {
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Modernizr.addTest('cssgradients', function() {
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var str1 = 'background-image:';
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var str2 = 'gradient(linear,left top,right bottom,from(#9f9),to(white));';
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var css = '';
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var angle;
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for (var i = 0, len = prefixes.length - 1; i < len; i++) {
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angle = (i === 0 ? 'to ' : '');
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css += str1 + prefixes[i] + 'linear-gradient(' + angle + 'left top, #9f9, white);';
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}
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if (Modernizr._config.usePrefixes) {
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// legacy webkit syntax (TODO:: remove when syntax not in use anymore)
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css += str1 + '-webkit-' + str2;
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}
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var elem = createElement('a');
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var style = elem.style;
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style.cssText = css;
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// IE6 returns undefined so cast to string
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return ('' + style.backgroundImage).indexOf('gradient') > -1;
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});
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});
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