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58 lines
2.0 KiB
HTML
58 lines
2.0 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=1212477
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-->
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<head>
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<meta charset="utf-8">
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<title>Test for Bug 1212477 - Needs a way to access to <canvas>'s context (2d, webgl) from Anonymous Content API</title>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1212477">Mozilla Bug 1212477</a>
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<div>
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<div id="id" class="test">text content</div>
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<canvas id="canvas2d"></canvas>
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<canvas id="canvas-webgl"></canvas>
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<canvas id="canvas-foo"></canvas>
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</div>
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<script type="application/javascript;version=1.8">
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let chromeDocument = SpecialPowers.wrap(document);
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let testElement = document.querySelector("div");
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let anonymousContent = chromeDocument.insertAnonymousContent(testElement);
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is(anonymousContent.getCanvasContext("id", "2d"), null,
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"Context is null for non-canvas elements");
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let context2d = anonymousContent.getCanvasContext("canvas2d", "2d");
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is(context2d.toString(), "[object CanvasRenderingContext2D]",
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"2D Context is returned properly");
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is(context2d.canvas, null,
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"context's canvas property is null in anonymous content");
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is (anonymousContent.getCanvasContext("canvas-foo", "foo"), null,
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"Context is null for unknown context type");
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SimpleTest.doesThrow(
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() => anonymousContent.getCanvasContext("foo", "2d"),
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"NS_ERROR_NOT_AVAILABLE",
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"Get a context using unexisting id should throw"
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);
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let webgl = anonymousContent.getCanvasContext("canvas-webgl", "webgl");
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is(webgl.toString(), "[object WebGLRenderingContext]",
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"WebGL Context is returned properly");
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is(webgl.canvas, null,
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"WebGL context's canvas property is null in anonymous content");
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chromeDocument.removeAnonymousContent(anonymousContent);
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</script>
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</body>
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</html>
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