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Bug 850163 - use mozRequestAnimationFrame to start the tab opening animation asynchronously but without missing the next possible frame. r=ttaubert

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--HG--
extra : rebase_source : 5274b1f1a8b5b5d0e4b7f3d369b0a91f3fb0655d
This commit is contained in:
Dão Gottwald 2013-04-03 16:05:56 +02:00
parent 511e3e334b
commit d489082412
2 changed files with 13 additions and 10 deletions
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19
browser/base/content/tabbrowser.xml
View File

@ -1454,17 +1454,18 @@
}
if (animate) {
this.tabContainer._handleTabTelemetryStart(t, aURI);
mozRequestAnimationFrame(function () {
this.tabContainer._handleTabTelemetryStart(t, aURI);
// kick the animation off
t.clientTop;
t.setAttribute("fadein", "true");
// kick the animation off
t.setAttribute("fadein", "true");
// This call to adjustTabstrip is redundant but needed so that
// when opening a second tab, the first tab's close buttons
// appears immediately rather than when the transition ends.
if (this.tabContainer.childNodes.length == 2)
this.tabContainer.adjustTabstrip();
// This call to adjustTabstrip is redundant but needed so that
// when opening a second tab, the first tab's close buttons
// appears immediately rather than when the transition ends.
if (this.tabContainer.childNodes.length == 2)
this.tabContainer.adjustTabstrip();
}.bind(this));
}
return t;

4
browser/base/content/test/browser_bug585785.js
View File

@ -4,13 +4,15 @@ function test() {
waitForExplicitFinish();
tab = gBrowser.addTab();
is(tab.getAttribute("fadein"), "true", "tab opening animation initiated");
isnot(tab.getAttribute("fadein"), "true", "newly opened tab is yet to fade in");
// Try to remove the tab right before the opening animation's first frame
window.mozRequestAnimationFrame(checkAnimationState);
}
function checkAnimationState() {
is(tab.getAttribute("fadein"), "true", "tab opening animation initiated");
info(window.getComputedStyle(tab).maxWidth);
gBrowser.removeTab(tab, { animate: true });
if (!tab.parentNode) {