content/canvas/test/test_mozGetAsFile.html

   1 <!DOCTYPE HTML>
   2 <title>Canvas test: mozGetAsFile</title>
   3 <script src="/MochiKit/MochiKit.js"></script>
   4 <script src="/tests/SimpleTest/SimpleTest.js"></script>
   5 <link rel="stylesheet" href="/tests/SimpleTest/test.css">
   6 <body>
   7 <canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
   8 <script>
   9
  10 var gCompares = 0;
  11
  12 function compareAsync(file, canvas, type)
  13 {
  14   ++gCompares;
  15
  16   var reader = new FileReader();
  17   reader.onload =
  18     function(e) {
  19       is(e.target.result, canvas.toDataURL(type),
  20  "<canvas>.mozGetAsFile().getAsDataURL() should equal <canvas>.toDataURL()");
  21       if (--gCompares == 0) {
  22         SimpleTest.finish();
  23       }
  24     };
  25   reader.readAsDataURL(file);
  26 }
  27
  28 SimpleTest.waitForExplicitFinish();
  29 addLoadEvent(function () {
  30
  31 var canvas = document.getElementById('c');
  32 var ctx = canvas.getContext('2d');
  33
  34 ctx.drawImage(document.getElementById('yellow75.png'), 0, 0);
  35
  36 var pngfile = canvas.mozGetAsFile("foo.png");
  37 is(pngfile.type, "image/png", "Default type for mozGetAsFile should be PNG");
  38 compareAsync(pngfile, canvas, "image/png");
  39 is(pngfile.name, "foo.png", "File name should be what we passed in");
  40
  41 var jpegfile = canvas.mozGetAsFile("bar.jpg", "image/jpeg");
  42 is(jpegfile.type, "image/jpeg",
  43    "When a valid type is specified that should be returned");
  44 compareAsync(jpegfile, canvas, "image/jpeg");
  45 is(jpegfile.name, "bar.jpg", "File name should be what we passed in");
  46
  47 });
  48 </script>
  49 <img src="image_yellow75.png" id="yellow75.png" class="resource">
  50