1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
// canvas.toDataURL type support
// http://www.w3.org/TR/html5/the-canvas-element.html#dom-canvas-todataurl
// This test is asynchronous. Watch out.
(function () {
if (!Modernizr.canvas) {
return false;
}
var image = new Image(),
canvas = document.createElement('canvas'),
ctx = canvas.getContext('2d');
image.onload = function() {
ctx.drawImage(image, 0, 0);
Modernizr.addTest('todataurljpeg', function() {
return canvas.toDataURL('image/jpeg').indexOf('data:image/jpeg') === 0;
});
Modernizr.addTest('todataurlwebp', function() {
return canvas.toDataURL('image/webp').indexOf('data:image/webp') === 0;
});
};
image.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAACklEQVR4nGMAAQAABQABDQottAAAAABJRU5ErkJggg==';
}());
|
