зеркало из https://github.com/mozilla/gecko-dev.git
117 строки
3.2 KiB
XML
117 строки
3.2 KiB
XML
<?xml version="1.0"?>
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<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
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<?xml-stylesheet type="text/css" href="/tests/SimpleTest/test.css"?>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=453650
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-->
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<window title="Mozilla Bug 453650"
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xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
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<title>Test for Bug 453650</title>
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<script type="application/javascript"
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src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<!-- test code goes here -->
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<script type="application/javascript">
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<![CDATA[
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/** Test for Bug 453650 **/
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SimpleTest.waitForExplicitFinish();
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var Ci = Components.interfaces;
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var Cr = Components.results;
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var iter = runTests();
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nextTest();
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function runTests() {
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var iframe = document.createElement("iframe");
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iframe.style.width = "300px";
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iframe.style.height = "300px";
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iframe.setAttribute("src", "data:text/html,<h1 id='h'>hello</h1>");
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document.documentElement.appendChild(iframe);
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yield whenLoaded(iframe);
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info("iframe loaded");
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var h1 = iframe.contentDocument.getElementById("h");
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h1.style.width = "400px";
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yield waitForInterruptibleReflow(iframe.docShell);
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h1.style.width = "300px";
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waitForReflow(iframe.docShell);
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yield is(300, h1.offsetWidth, "h1 has correct width");
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}
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function waitForInterruptibleReflow(docShell) {
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waitForReflow(docShell, true);
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}
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function waitForReflow(docShell, interruptible = false) {
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function done() {
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docShell.removeWeakReflowObserver(observer);
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SimpleTest.executeSoon(nextTest);
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}
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var observer = {
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reflow: function (start, end) {
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if (interruptible) {
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ok(false, "expected interruptible reflow");
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} else {
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ok(true, "observed uninterruptible reflow");
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}
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info("times: " + start + ", " + end);
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ok(start < end, "reflow start time lower than end time");
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done();
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},
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reflowInterruptible: function (start, end) {
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if (!interruptible) {
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ok(false, "expected uninterruptible reflow");
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} else {
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ok(true, "observed interruptible reflow");
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}
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info("times: " + start + ", " + end);
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ok(start < end, "reflow start time lower than end time");
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done();
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},
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QueryInterface: function (iid) {
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if (Ci.nsIReflowObserver.equals(iid) ||
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Ci.nsISupportsWeakReference.equals(iid) ||
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Ci.nsISupports.equals(iid))
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return this;
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throw Cr.NS_ERROR_NO_INTERFACE;
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},
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};
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docShell.addWeakReflowObserver(observer);
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}
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function whenLoaded(iframe) {
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iframe.addEventListener("load", function onLoad() {
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iframe.removeEventListener("load", onLoad);
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SimpleTest.executeSoon(nextTest);
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});
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}
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function nextTest() {
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try {
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iter.next();
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} catch (e if e instanceof StopIteration) {
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SimpleTest.finish();
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}
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}
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]]>
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</script>
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<!-- test results are displayed in the html:body -->
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<body xmlns="http://www.w3.org/1999/xhtml">
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<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=453650"
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target="_blank">Mozilla Bug 453650</a>
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</body>
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</window>
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