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Diffstat (limited to 'layout/reftests/bugs/670442-1-ref.html')
| -rw-r--r-- | layout/reftests/bugs/670442-1-ref.html | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/layout/reftests/bugs/670442-1-ref.html b/layout/reftests/bugs/670442-1-ref.html new file mode 100644 index 0000000000..6766643a2d --- /dev/null +++ b/layout/reftests/bugs/670442-1-ref.html @@ -0,0 +1,40 @@ +<!DOCTYPE html> +<html> + <body> + <div> + <canvas id="c1" width="400" height="400"></canvas> + <canvas id="c2" width="400" height="400"></canvas> + </div> + <script type="text/javascript"> + var canv1 = document.getElementById('c1'); + var canv2 = document.getElementById('c2'); + var ctx1 = canv1.getContext('2d'); + var ctx2 = canv2.getContext('2d'); + + ctx1.strokeStyle = '#FF0000'; + ctx1.moveTo(10, 10); + ctx1.lineTo(390, 390); + ctx1.stroke(); + + function doTest() + { + // Save img data + var imgData = ctx1.getImageData(0, 0, canv1.width, canv1.height); + + // Resize canvas - seems to cause the bug + canv1.width = 0; + canv1.height = 0; + canv1.width = 400; + canv1.height = 400; + + // Put image data from ctx1 to ctx2 + ctx2.putImageData(imgData, 0, 0); + + // Draw canvas2 on canvas1 + ctx1.drawImage(canv2, 0, 0); + }; + + doTest(); + </script> + </body> +</html> |