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Test Info:
<!DOCTYPE html>
<html>
<head>
<title>Canvas subdom mutation</title>
<link rel="stylesheet" type="text/css"
<script type="application/javascript"
src="../common.js"></script>
<script type="application/javascript"
src="../role.js"></script>
<script type="application/javascript"
src="../events.js"></script>
<script type="application/javascript">
// //////////////////////////////////////////////////////////////////////////
// Test
async function doTest() {
// make the subdom come alive!
let shown = waitForEvent(EVENT_SHOW, getNode("dialog"));
// ensure we start with no subtree
testAccessibleTree("canvas", { CANVAS: [] });
getNode("dialog").style.display = "block";
await shown;
testAccessibleTree("dialog", { DIALOG: [] });
SimpleTest.finish();
}
SimpleTest.waitForExplicitFinish();
addA11yLoadEvent(doTest);
</script>
</head>
<body>
<a target="_blank"
title="Expose content in Canvas element"
</a>
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test">
</pre>
<canvas id="canvas">
<div id="dialog" role="dialog" style="display: none;">
</div>
</canvas>
<div id="eventdump"></div>
</body>
</html>