content/canvas/test/test_drawImage_edge_cases.html@deefc01c0e14
content/canvas/test/test_drawImage_edge_cases.html
Thu, 15 Jan 2015 21:03:48 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 21:03:48 +0100
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
- permissions
- -rw-r--r--
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
1 <!DOCTYPE HTML>
2 <html>
3 <head>
4 <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
5 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
6 </head>
7 <body onload="doTest()">
8 <p id="display">
9 <canvas id="c" width="1" height="1"></canvas>
10 <img id="img" src="image_red.png">
11 </p>
12 <div id="content" style="display: none">
14 </div>
15 <pre id="test">
16 <script type="application/javascript">
18 var c = document.getElementById("c");
19 var ctx = c.getContext("2d");
20 var img = document.getElementById("img");
22 SimpleTest.waitForExplicitFinish();
24 function doTest() {
25 ctx.drawImage(img, 0, 0);
26 img.src = "image_green-1x1.png";
27 img.onload = function() {
28 ctx.drawImage(img, 0, 0);
29 var data = ctx.getImageData(0, 0, 1, 1).data;
30 is(data[0], 0, "Red channel should be 0");
31 is(data[1], 255, "Green channel should be 1.0");
32 is(data[2], 0, "Blue channel should be 0")
33 is(data[3], 255, "Alpha channel should be opaque");
35 SimpleTest.finish();
36 }
37 }
39 </script>
40 </pre>
41 </body>
42 </html>
