third_party/WebKit/LayoutTests/fast/canvas/bug445162.html

   1 <!DOCTYPE html>
   2 <html>
   3 <body>
   4 <p>A green square should appear below this text.</p>
   5 <canvas id="c" width="100" height="100"></canvas>
   6 <script>
   7 window.onload = function() {
   8     var canvas = document.getElementById("c")
   9     var ctx = canvas.getContext("2d")
  10     ctx.fillStyle = 'red';
  11     ctx.fillRect(0, 0, 100, 100);
  12     ctx.translate(100, 0);
  13
  14     // If canvas was in diplay list mode, this will trigger a fallback
  15     var dataUrl = canvas.toDataURL();
  16     // This should reset the current transform. crbug.com/445162 had to do with
  17     // The fallback interfering with the mechanism that resets state when the canvas
  18     // is cleared by resetting its size to the same value.
  19     canvas.width = 100;
  20
  21     ctx.fillStyle = 'green';
  22     ctx.fillRect(0, 0, 100, 100);
  23 }
  24 </script>
  25 </body>
  26 </html>