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osdWindow: Disconnect signals on destroy

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Since we started to show OSD windows on all monitors, OSD windows are
destroyed when the corresponding monitor is disconnected. We shouldn't
leave any signal handlers around in that case - they prevent the object
from being garbage collected, and trigger warnings for accessing proper-
ties of invalidated GObjects.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/602


(cherry picked from commit 8566ec2ee5)
This commit is contained in:
Florian Müllner 2018-09-23 01:06:21 +00:00 committed by Florian Müllner
parent ec5db74101
commit 5ee0f743de
1 changed files with 19 additions and 4 deletions
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23
js/ui/osdWindow.js
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@ -118,15 +118,30 @@ var OsdWindow = new Lang.Class({
this._hideTimeoutId = 0;
this._reset();
Main.layoutManager.connect('monitors-changed',
this._relayout.bind(this));
this.actor.connect('destroy', this._onDestroy.bind(this));
this._monitorsChangedId =
Main.layoutManager.connect('monitors-changed',
this._relayout.bind(this));
let themeContext = St.ThemeContext.get_for_stage(global.stage);
themeContext.connect('notify::scale-factor',
this._relayout.bind(this));
this._scaleChangedId =
themeContext.connect('notify::scale-factor',
this._relayout.bind(this));
this._relayout();
Main.uiGroup.add_child(this.actor);
},
_onDestroy() {
if (this._monitorsChangedId)
Main.layoutManager.disconnect(this._monitorsChangedId);
this._monitorsChangedId = 0;
let themeContext = St.ThemeContext.get_for_stage(global.stage);
if (this._scaleChangedId)
themeContext.disconnect(this._scaleChangedId);
this._scaleChangedId = 0;
},
setIcon(icon) {
this._icon.gicon = icon;
},