зеркало из https://github.com/mozilla/gecko-dev.git
83 строки
1.9 KiB
HTML
83 строки
1.9 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=338679
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-->
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<head>
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<title>Bug 338679: correct reporting of newValue/prevValue in
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DOMAttrModified events</title>
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<script 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"
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href="https://bugzilla.mozilla.org/show_bug.cgi?id=338679">Bug
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338679: correct reporting of newValue/prevValue in
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DOMAttrModified events</a>
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<div id="test" style="width:20em"></div>
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<script>
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var testDiv = document.getElementById("test");
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var e_new, e_prev = testDiv.getAttribute("style");
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var phase, recursive = false;
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/* driver */
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var tests = [ test_1, test_2, test_3 ];
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var i = 0;
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function nextTest() {
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if (i < tests.length) {
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phase = tests[i];
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i++;
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phase();
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} else {
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SimpleTest.finish();
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}
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}
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if (SpecialPowers.getBoolPref("dom.mutation-events.cssom.disabled")) {
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ok(true, "DOMAttrModified event from CSSOM change is disabled");
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} else {
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SimpleTest.waitForExplicitFinish();
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testDiv.addEventListener("DOMAttrModified", attr_modified);
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nextTest();
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}
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/* event handler */
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function attr_modified(ev) {
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is(ev.newValue, e_new,
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phase.name + (recursive ? " recursive" : "") + ": newValue");
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is(ev.prevValue, e_prev,
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phase.name + (recursive ? " recursive" : "") + ": prevValue");
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e_prev = e_new;
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if (!recursive) {
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recursive = true;
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e_new = "width: 0px;";
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testDiv.style.width = "0";
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} else {
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recursive = false;
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setTimeout(nextTest, 0);
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}
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}
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/* tests */
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function test_1() {
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e_new = "width: auto;";
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testDiv.style.width = "auto";
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}
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function test_2() {
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e_new = "width: 15%;";
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testDiv.style.width = "15%";
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}
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function test_3() {
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window.getComputedStyle(testDiv).width; // force style resolution
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e_new = "width: inherit;";
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testDiv.style.width = "inherit";
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}
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</script>
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</body>
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</html>
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