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Disconnect from window user time notifications, only sort when mapped

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Before we were badly leaking AppIcons by not disconnecting from the
window signal handlers when our actor got destroyed.  This caused
us to repeatedly re-sort the windows for each AppIcon that
had ever been displayed with obvious bad consequences.

Besides simply chaining the signals to the lifetime of the AppIcon
actor, we also only do the sorting if we're mapped.  This decreases
the amount of work to do in the not-mapped case.

https://bugzilla.gnome.org/show_bug.cgi?id=597120
This commit is contained in:
Colin Walters 2009-10-02 15:55:55 -04:00
parent ff4ac0d02e
commit 4bdd40911f
1 changed files with 28 additions and 1 deletions
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29
js/ui/appIcon.js
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@ -70,13 +70,21 @@ AppIcon.prototype = {
reactive: true });
this.actor._delegate = this;
this.highlight_border_color = APPICON_DEFAULT_BORDER_COLOR;
this._signalIds = [];
// Note, we don't presently update the window list dynamically here; this actor
// gets destroyed and recreated by AppWell, and in alt-tab the whole thing is
// created each time
this.windows = Shell.AppMonitor.get_default().get_windows_for_app(this.appInfo.get_id());
for (let i = 0; i < this.windows.length; i++) {
this.windows[i].connect('notify::user-time', Lang.bind(this, this._resortWindows));
let sigId = this.windows[i].connect('notify::user-time', Lang.bind(this, this._resortWindows));
this._signalIds.push([this.windows[i], sigId]);
}
this._resortWindows();
this.actor.connect('destroy', Lang.bind(this, this._destroy));
this.actor.connect('notify::mapped', Lang.bind(this, this._onMappedChanged));
if (this._menuType != MenuType.NONE) {
this.actor.connect('button-press-event', Lang.bind(this, this._updateMenuOnButtonPress));
this.actor.connect('notify::hover', Lang.bind(this, this._updateMenuOnHoverChanged));
@ -167,7 +175,26 @@ AppIcon.prototype = {
}
},
_destroy: function() {
for (let i = 0; i < this._signalIds.length; i++) {
let [obj, sigId] = this._signalIds[i];
obj.disconnect(sigId);
}
},
_onMappedChanged: function() {
let mapped = this.actor.mapped;
if (mapped && this._windowSortStale)
this._resortWindows();
},
_resortWindows: function() {
let mapped = this.actor.mapped;
if (!mapped) {
this._windowSortStale = true;
return;
}
this._windowSortStale = false;
this.windows.sort(function (a, b) {
let activeWorkspace = global.screen.get_active_workspace();
let wsA = a.get_workspace() == activeWorkspace;