36 lines
No EOL
773 B
JavaScript
36 lines
No EOL
773 B
JavaScript
// To make images retina, add a class "2x" to the img element
|
|
// and add a <image-name>@2x.png image. Assumes jquery is loaded.
|
|
|
|
function isRetina() {
|
|
var mediaQuery = "(-webkit-min-device-pixel-ratio: 1.5),\
|
|
(min--moz-device-pixel-ratio: 1.5),\
|
|
(-o-min-device-pixel-ratio: 3/2),\
|
|
(min-resolution: 1.5dppx)";
|
|
|
|
if (window.devicePixelRatio > 1)
|
|
return true;
|
|
|
|
if (window.matchMedia && window.matchMedia(mediaQuery).matches)
|
|
return true;
|
|
|
|
return false;
|
|
};
|
|
|
|
|
|
function retina() {
|
|
|
|
if (!isRetina())
|
|
return;
|
|
|
|
$("img.2x").map(function(i, image) {
|
|
|
|
var path = $(image).attr("src");
|
|
|
|
path = path.replace(".png", "@2x.png");
|
|
path = path.replace(".jpg", "@2x.jpg");
|
|
|
|
$(image).attr("src", path);
|
|
});
|
|
};
|
|
|
|
$(document).ready(retina); |