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Bug 752376 - Avoid calling scrollbox.ensureElementIsVisible() if the tab strip doesn't overflow to prevent layout flushes. r=enn

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This commit is contained in:
Dão Gottwald 2012-10-25 19:59:33 +02:00
parent dcc8a81bf7
commit 17e16d4bb1
1 changed files with 11 additions and 4 deletions
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15
browser/base/content/tabbrowser.xml
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@ -2054,7 +2054,7 @@
this.showTab(tab);
}, this);
this.tabContainer.mTabstrip.ensureElementIsVisible(this.selectedTab, false);
this.tabContainer._handleTabSelect(false);
]]>
</body>
</method>
@ -2203,7 +2203,7 @@
this.tabs[i]._selected = false;
}
this.mCurrentTab._selected = true;
this.tabContainer.mTabstrip.ensureElementIsVisible(this.mCurrentTab, false);
this.tabContainer._handleTabSelect(false);
if (aTab.pinned)
this.tabContainer._positionPinnedTabs();
@ -2808,6 +2808,7 @@
var tabs = document.getBindingParent(this);
tabs.setAttribute("overflow", "true");
tabs._positionPinnedTabs();
tabs._handleTabSelect(false);
]]></handler>
</handlers>
</binding>
@ -3004,8 +3005,10 @@
</method>
<method name="_handleTabSelect">
<parameter name="aSmoothScroll"/>
<body><![CDATA[
this.mTabstrip.ensureElementIsVisible(this.selectedItem);
if (this.getAttribute("overflow") == "true")
this.mTabstrip.ensureElementIsVisible(this.selectedItem, aSmoothScroll);
]]></body>
</method>
@ -3123,6 +3126,7 @@
]]></body>
</method>
<field name="_lastNumPinned">0</field>
<method name="_positionPinnedTabs">
<body><![CDATA[
var numPinned = this.tabbrowser._numPinnedTabs;
@ -3155,7 +3159,10 @@
this.style.MozPaddingStart = "";
}
this.mTabstrip.ensureElementIsVisible(this.selectedItem, false);
if (this._lastNumPinned != numPinned) {
this._lastNumPinned = numPinned;
this._handleTabSelect(false);
}
]]></body>
</method>