Bug 1740295 [wpt PR 31560] - GetTopExecutionContext method for Canvas…

… rendering contexts, a=testonly Automatic update from web-platform-tests GetTopExecutionContext method for Canvas rendering contexts BaseRenderingContext2D and CanvasPath access UMA, UseCounters and RuntimeFlags through GetCanvasRenderingContextHost()->GetTopExecutionContext(). This doesn't work and has never worked for PaintRenderingContexts as there is no class that works as a "host" for these contexts. This CL adds a GetTopExecutionContext() function to all canvas rendering 2d contexts that returns a pointer to the execution context directly. For canvas elements and offscreen canvases, this works exactly as before (i.e. host->execution_context). For paint rendering contexts a pointer to the PaintWorkletGlobalScope is passed in on creation. Before this change some new Canvas2D API features would cause crashes in paint worklets. Change-Id: Icb6529c285d1aff2c001291a4387c613fb24fba7 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3260452 Reviewed-by: Robert Flack <[email protected]> Reviewed-by: Fernando Serboncini <[email protected]> Commit-Queue: Aaron Krajeski <[email protected]> Cr-Commit-Position: refs/heads/main@{#940114} -- wpt-commits: 755553ec4f8eb116eea31556a6cfc83b18bcde1d wpt-pr: 31560
jamienicol · Nov 15, 2021 · 3963907 · 3963907
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commit 3963907
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diff --git a/testing/web-platform/tests/css/css-paint-api/roundrect-ref.html b/testing/web-platform/tests/css/css-paint-api/roundrect-ref.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+<body>
+<canvas id ="output" width="300" height="400"></canvas>
+<script>
+var canvas = document.getElementById('output');
+var ctx = canvas.getContext('2d');
+
+ctx.beginPath();
+ctx.roundRect(10, 10, 100, 100, [20]);
+ctx.fill();
+</script>
+</body>
+</html>
+
diff --git a/testing/web-platform/tests/css/css-paint-api/roundrect.https.html b/testing/web-platform/tests/css/css-paint-api/roundrect.https.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.css-houdini.org/css-paint-api/">
+<link rel="match" href="roundrect-ref.html">
+<style>
+    #output {
+        width: 300px;
+        height: 400px;
+        background-image: paint(paths);
+    }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script src="/common/worklet-reftest.js"></script>
+<body>
+<div id="output"></div>
+
+<script id="code" type="text/worklet">
+registerPaint('paths', class {
+    paint(ctx, geom) {
+        ctx.beginPath();
+        ctx.roundRect(10, 10, 100, 100, [20]);
+        ctx.fill();
+    }
+});
+</script>
+
+<script>
+    importWorkletAndTerminateTestAfterAsyncPaint(CSS.paintWorklet, document.getElementById('code').textContent);
+</script>
+</body>
+</html>