forked from mirrors/gecko-dev
8de07a19a0
MozReview-Commit-ID: 2ZvTiZDHchz --HG-- extra : rebase_source : db6482481b7338df491afd6f6fd376eccec84d7e
35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
var tab;
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function test() {
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waitForExplicitFinish();
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tab = gBrowser.addTab();
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isnot(tab.getAttribute("fadein"), "true", "newly opened tab is yet to fade in");
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// Try to remove the tab right before the opening animation's first frame
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window.requestAnimationFrame(checkAnimationState);
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}
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function checkAnimationState() {
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is(tab.getAttribute("fadein"), "true", "tab opening animation initiated");
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info(window.getComputedStyle(tab).maxWidth);
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gBrowser.removeTab(tab, { animate: true });
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if (!tab.parentNode) {
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ok(true, "tab removed synchronously since the opening animation hasn't moved yet");
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finish();
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return;
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}
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info("tab didn't close immediately, so the tab opening animation must have started moving");
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info("waiting for the tab to close asynchronously");
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tab.addEventListener("transitionend", function(event) {
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if (event.propertyName == "max-width") {
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tab.removeEventListener("transitionend", arguments.callee, false);
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executeSoon(function() {
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ok(!tab.parentNode, "tab removed asynchronously");
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finish();
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});
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}
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}, false);
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}
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