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messageTray: Prevent reentrancy issues in _updateState

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The methods we call in _updateState may not be reentrant, so make
sure that we never get into a situation where _updateState, through
some crazy chain of events, calls itself.

https://bugzilla.gnome.org/show_bug.cgi?id=711694
This commit is contained in:
Jasper St. Pierre 2013-11-15 10:34:04 -05:00
parent c85145d73c
commit 87f0e79749
1 changed files with 9 additions and 0 deletions
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9
js/ui/messageTray.js
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@ -2356,6 +2356,13 @@ const MessageTray = new Lang.Class({
// _updateState() figures out what (if anything) needs to be done
// at the present time.
_updateState: function() {
// If our state changes caused _updateState to be called,
// just exit now to prevent reentrancy issues.
if (this._updatingState)
return;
this._updatingState = true;
// Filter out acknowledged notifications.
this._notificationQueue = this._notificationQueue.filter(function(n) {
return !n.acknowledged;
@ -2436,6 +2443,8 @@ const MessageTray = new Lang.Class({
this._showDesktopClone();
else if (desktopCloneIsVisible && !desktopCloneShouldBeVisible)
this._hideDesktopClone();
this._updatingState = false;
},
_tween: function(actor, statevar, value, params) {