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77 lines
2.1 KiB
HTML
77 lines
2.1 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=985988
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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 985988</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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<script type="application/javascript">
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/** Test for Bug 985988 **/
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function handler() {
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return false;
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}
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function reversedHandler() {
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return true;
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}
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function test() {
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var t = document.getElementById("testtarget");
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t.onclick = handler;
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var e = new MouseEvent("click", {cancelable: true});
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t.dispatchEvent(e);
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ok(e.defaultPrevented, "Should have prevented default handling.");
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t.onclick = reversedHandler;
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e = new MouseEvent("click", {cancelable: true});
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t.dispatchEvent(e);
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ok(!e.defaultPrevented, "Shouldn't have prevented default handling.");
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// mouseover has reversed meaning for handler return value.
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t.onmouseover = reversedHandler;
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e = new MouseEvent("mouseover", {cancelable: true});
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t.dispatchEvent(e);
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ok(e.defaultPrevented, "Should have prevented default handling.");
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t.onmouseover = handler;
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e = new MouseEvent("mouseover", {cancelable: true});
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t.dispatchEvent(e);
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ok(!e.defaultPrevented, "Shouldn't have prevented default handling.");
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// error has reversed meaning for handler return value.
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t.onerror = reversedHandler;
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e = new ErrorEvent("error", {cancelable: true});
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t.dispatchEvent(e);
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ok(e.defaultPrevented, "Should have prevented default handling.");
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t.onerror = handler;
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e = new MouseEvent("error", {cancelable: true});
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t.dispatchEvent(e);
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ok(!e.defaultPrevented, "Shouldn't have prevented default handling.");
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SimpleTest.finish();
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}
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SimpleTest.waitForExplicitFinish();
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addLoadEvent(test);
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</script>
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</head>
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<body onload="test()">
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=985988">Mozilla Bug 985988</a>
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<p id="display"></p>
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<div id="content" style="display: none">
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</div>
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<a href="#" id="testtarget">test target</a>
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<pre id="test">
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</pre>
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</body>
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</html>
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