зеркало из https://github.com/mozilla/gecko-dev.git
33 строки
927 B
HTML
33 строки
927 B
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>WebGL in OffscreenCanvas</title>
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</head>
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<body>
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<canvas id="c" width="64" height="64"></canvas>
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<script>
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function ok(expect, msg) {
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parent.postMessage({type: "test", result: !!expect, name: msg}, "*");
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}
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var htmlCanvas = document.getElementById("c");
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ok(htmlCanvas, "Should have HTML canvas element");
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var messageChannel = new MessageChannel();
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messageChannel.port1.onmessage = function(evt) {
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parent.postMessage(evt.data, "*");
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}
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ok(htmlCanvas.transferControlToOffscreen, "HTMLCanvasElement has transferControlToOffscreen function");
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var offscreenCanvas = htmlCanvas.transferControlToOffscreen();
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ok(offscreenCanvas, "Expected transferControlToOffscreen to succeed");
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navigator.serviceWorker.ready.then(function() {
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navigator.serviceWorker.controller.postMessage({test: 'webgl', canvas: offscreenCanvas}, [offscreenCanvas, messageChannel.port2]);
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});
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</script>
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</body>
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</html>
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