| Index: third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-commit-frameless-doc.html
|
| diff --git a/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-commit-frameless-doc.html b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-commit-frameless-doc.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..10542b104c4ec607a5ba51fcbfc7e6fbe1ab70d0
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-commit-frameless-doc.html
|
| @@ -0,0 +1,53 @@
|
| +<!DOCTYPE html>
|
| +<script src="../../resources/testharness.js"></script>
|
| +<script src="../../resources/testharnessreport.js"></script>
|
| +<script>
|
| +// This test aims to ensure that OffscreenCanvas.commit() does not
|
| +// crash for a placeholder canvas under frameless document.
|
| +// Since the document is invisible, the resultant image should be
|
| +// not visible too. But users must be able to draw to the OffscreenCanvas
|
| +// and do canvas-operations on the frameless placeholder canvas.
|
| +// TODO(crbug.com/683172): Modify this test after handling for
|
| +// frameless canvas is done.
|
| +function createFramelessCanvas() {
|
| + var framelessDoc = document.implementation.createHTMLDocument("frameless");
|
| + var canvas = framelessDoc.createElement("canvas");
|
| + canvas.width = 50;
|
| + canvas.height = 50;
|
| + return canvas;
|
| +}
|
| +
|
| +function transferControlAndCommit(canvas) {
|
| + var offscreenCanvas = canvas.transferControlToOffscreen();
|
| + var ctx = offscreenCanvas.getContext("2d");
|
| + ctx.fillStyle = "blue";
|
| + ctx.fillRect(0, 0, 50, 50);
|
| + ctx.commit();
|
| + return offscreenCanvas;
|
| +}
|
| +
|
| +test(function() {
|
| + var offscreenCanvas = transferControlAndCommit(createFramelessCanvas());
|
| + var ctx = offscreenCanvas.getContext("2d");
|
| + var pixels = ctx.getImageData(0, 0, 1, 1).data;
|
| + assert_array_equals(pixels, [0, 0, 255, 255]);
|
| +}, "Verify that the getImageData() works on the OffscreenCanvas context of a frameless canvas");
|
| +
|
| +async_test(function(t) {
|
| + var canvas = createFramelessCanvas();
|
| + var offscreenCanvas = transferControlAndCommit(canvas);
|
| +
|
| + var c = document.createElement("canvas");
|
| + c.width = 50;
|
| + c.height = 50;
|
| + var ctx2 = c.getContext("2d");
|
| + setTimeout(function() {
|
| + ctx2.drawImage(canvas, 0, 0);
|
| + var pixels = ctx2.getImageData(0, 0, 1, 1).data;
|
| + t.step(function() {
|
| + assert_array_equals(pixels, [0, 0, 255, 255]);
|
| + });
|
| + t.done();
|
| + }, 0);
|
| +}, "Verify that the placeholder canvas can be used as an image source");
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 2644653003:
Make OffscreenCanvas animation in sync with its placeholder canvas's parent frame rate (Closed)
