welsonjs/node_modules/modernizr/feature-detects/img/webp-animation.js

36 lines
1.1 KiB
JavaScript

/*!
{
"name": "Webp Animation",
"async": true,
"property": "webpanimation",
"aliases": ["webp-animation"],
"tags": ["image"],
"authors": ["Krister Kari", "Rich Bradshaw", "Ryan Seddon", "Paul Irish"],
"notes": [{
"name": "WebP Info",
"href": "https://developers.google.com/speed/webp/"
}, {
"name": "Chromium blog - Chrome 32 Beta: Animated WebP images and faster Chrome for Android touch input",
"href": "https://blog.chromium.org/2013/11/chrome-32-beta-animated-webp-images-and.html"
}]
}
!*/
/* DOC
Tests for animated webp support.
*/
define(['Modernizr', 'addTest'], function(Modernizr, addTest) {
Modernizr.addAsyncTest(function() {
var image = new Image();
image.onerror = function() {
addTest('webpanimation', false, {aliases: ['webp-animation']});
};
image.onload = function() {
addTest('webpanimation', image.width === 1, {aliases: ['webp-animation']});
};
image.src = 'data:image/webp;base64,UklGRlIAAABXRUJQVlA4WAoAAAASAAAAAAAAAAAAQU5JTQYAAAD/////AABBTk1GJgAAAAAAAAAAAAAAAAAAAGQAAABWUDhMDQAAAC8AAAAQBxAREYiI/gcA';
});
});