| xidachen | 9bf9877 | 2016-11-10 20:27:01 | [diff] [blame^] | 1 | <!DOCTYPE html> |
| 2 | <meta charset="utf-8"> |
| 3 | <title>Canvas's ImageBitmapRenderingContext test</title> |
| 4 | <script src="/resources/testharness.js"></script> |
| 5 | <script src="/resources/testharnessreport.js"></script> |
| 6 | <link rel="help" href="https://html.spec.whatwg.org/multipage/scripting.html#the-imagebitmap-rendering-context"> |
| 7 | <script> |
| 8 | var width = 10; |
| 9 | var height = 10; |
| 10 | |
| 11 | promise_test(function() { |
| 12 | function testException(image) { |
| 13 | var dstCanvas = document.createElement('canvas'); |
| 14 | dstCanvas.width = width; |
| 15 | dstCanvas.height = height; |
| 16 | var dstCtx = dstCanvas.getContext('bitmaprenderer'); |
| 17 | dstCtx.transferFromImageBitmap(image); |
| 18 | |
| 19 | // The image should be detached after transferFromImageBitmap. |
| 20 | assert_equals(image.width, 0); |
| 21 | assert_equals(image.height, 0); |
| 22 | assert_throws("InvalidStateError", function() { dstCtx.transferFromImageBitmap(image); }); |
| 23 | } |
| 24 | |
| 25 | var srcCanvas = document.createElement('canvas'); |
| 26 | srcCanvas.width = width; |
| 27 | srcCanvas.height = height; |
| 28 | var ctx = srcCanvas.getContext('2d'); |
| 29 | ctx.fillStyle = 'rgba(0, 255, 0, 0.5)'; |
| 30 | ctx.fillRect(0, 0, width, height); |
| 31 | createImageBitmap(srcCanvas).then(testException); |
| 32 | }, "Test transferFromImageBitmap(image) with a detached image should throw InvalidStateError"); |
| 33 | |
| 34 | </script> |
