stonewareslord/treestyletab
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Don't listen "mouseleave" event (because it increases CPU usage even if we ended to listen the event by removeEventListener)

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YUKI Hiroshi 2012-11-19 16:20:10 +09:00
parent f2fb69e663
commit 04eff24408
1 changed files with 29 additions and 4 deletions
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33
modules/browser.js
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@ -2047,7 +2047,8 @@ TreeStyleTabBrowser.prototype = {
delete this.tabsHash[id];
if (aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave) {
aTab.removeEventListener('mouseleave', aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave, false);
this.document.removeEventListener('mouseover', aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave, true);
this.document.removeEventListener('mouseover', aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave, true);
delete aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave;
}
@ -5669,17 +5670,41 @@ TreeStyleTabBrowser.prototype = {
this.cancelCheckTabsIndentOverflow();
if (!aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave) {
var self = this;
aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave = function(aEvent) {
var stillOver = false;
var id = this.getTabValue(aTab, this.kID);
aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave = function checkTabsIndentOverflowOnMouseLeave(aEvent, aDelayed) {
if (aEvent.type == 'mouseover') {
if (self.evaluateXPath(
'ancestor-or-self::*[@' + self.kID + '="' + id + '"]',
aEvent.originalTarget || aEvent.target,
Ci.nsIDOMXPathResult.BOOLEAN_TYPE
).booleanValue)
stillOver = true;
return;
}
else if (!aDelayed) {
if (stillOver) {
stillOver = false;
}
self.Deferred.next(function() {
checkTabsIndentOverflowOnMouseLeave.call(null, aEvent, true);
});
return;
} else if (stillOver) {
return;
}
var x = aEvent.clientX;
var y = aEvent.clientY;
var rect = aTab.getBoundingClientRect();
if (x > rect.left && x < rect.right && y > rect.top && y < rect.bottom)
return;
aTab.removeEventListener(aEvent.type, aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave, false);
self.document.removeEventListener('mouseover', aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave, true);
self.document.removeEventListener('mouseout', aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave, true);
delete aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave;
self.checkTabsIndentOverflow();
};
aTab.addEventListener('mouseleave', aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave, false);
this.document.addEventListener('mouseover', aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave, true);
this.document.addEventListener('mouseout', aTab.__treestyletab__checkTabsIndentOverflowOnMouseLeave, true);
}
}
},