third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-transferable-exceptions.html - Issue 2294383002: Make OffscreenCanvas a member of CanvasImageSource

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Issue 2294383002: Make OffscreenCanvas a member of CanvasImageSource (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: rebase Created 4 years, 3 months ago

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1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">	1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">

2 <html>	2 <html>

3 <head>	3 <head>

4 <script src="../../resources/js-test.js"></script>	4 <script src="../../resources/js-test.js"></script>

5 </head>	5 </head>

6 <body>	6 <body>

7 <script>	7 <script>

8	8

9 description("Test OffscreenCanvas transferable with exception cases.");	9 description("Test OffscreenCanvas transferable with exception cases.");

10	10

11 var worker = new Worker('./resources/OffscreenCanvas-transferable.js');	11 var worker = new Worker('./resources/OffscreenCanvas-transferable.js');

12	12

13 var width = 50;	13 var width = 50;

14 var height = 50;	14 var height = 50;

15 var offscreenCanvas1 = new OffscreenCanvas(width, height);	15 var offscreenCanvas1 = new OffscreenCanvas(width, height);

16	16

17 var ctx;	17 var ctx;

18 shouldNotThrow("ctx = offscreenCanvas1.getContext('2d')");	18 shouldNotThrow("ctx = offscreenCanvas1.getContext('2d')");

19 shouldBeType("ctx", "OffscreenCanvasRenderingContext2D");	19 shouldBeType("ctx", "OffscreenCanvasRenderingContext2D");

20 shouldThrow("worker.postMessage({data: offscreenCanvas1}, [offscreenCanvas1])");	20 shouldThrow("worker.postMessage({data: offscreenCanvas1}, [offscreenCanvas1])");

21	21

22 var offscreenCanvas2 = new OffscreenCanvas(width, height);	22 var offscreenCanvas2 = new OffscreenCanvas(width, height);

23 worker.postMessage({data: offscreenCanvas2}, [offscreenCanvas2]);	23 worker.postMessage({data: offscreenCanvas2}, [offscreenCanvas2]);

24 shouldThrow("offscreenCanvas2.transferToImageBitmap()");	24 shouldThrow("offscreenCanvas2.transferToImageBitmap()");

25	25

26 shouldThrow("worker.postMessage({data: offscreenCanvas2}, [offscreenCanvas2])");	26 shouldThrow("worker.postMessage({data: offscreenCanvas2}, [offscreenCanvas2])");

27 shouldThrow("offscreenCanvas2.getContext('2d')");	27 shouldThrow("offscreenCanvas2.getContext('2d')");

28	28

	29 // using a transferred OffscreenCanvas as a source image throws.

	30 shouldThrow("ctx.drawImage(offscreenCanvas2, 0, 0)");

	31

29 finishJSTest();	32 finishJSTest();

30 </script>	33 </script>

31 </body>	34 </body>

32 </html>	35 </html>

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