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36 lines
773 B
JavaScript
36 lines
773 B
JavaScript
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// To make images retina, add a class "2x" to the img element
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// and add a <image-name>@2x.png image. Assumes jquery is loaded.
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function isRetina() {
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var mediaQuery = "(-webkit-min-device-pixel-ratio: 1.5),\
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(min--moz-device-pixel-ratio: 1.5),\
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(-o-min-device-pixel-ratio: 3/2),\
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(min-resolution: 1.5dppx)";
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if (window.devicePixelRatio > 1)
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return true;
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if (window.matchMedia && window.matchMedia(mediaQuery).matches)
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return true;
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return false;
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};
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function retina() {
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if (!isRetina())
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return;
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$("img.2x").map(function(i, image) {
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var path = $(image).attr("src");
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path = path.replace(".png", "@2x.png");
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path = path.replace(".jpg", "@2x.jpg");
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$(image).attr("src", path);
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});
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};
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$(document).ready(retina);
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