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workspacesDisplay: Disconnect MetaLater and parent signals on destroy

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When the WorkspacesDisplay actor is destroyed we should remove the
ongoing later and parent widget connections to avoid accessing an
invalid object on callback.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/700
This commit is contained in:
Marco Trevisan (Treviño) 2019-08-12 16:25:48 +02:00 • committed by Florian Müllner
parent 24d3744cb9
commit 8656102182
1 changed files with 21 additions and 1 deletions
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22
js/ui/workspacesView.js
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@ -524,6 +524,22 @@ var WorkspacesDisplay = class {
this._keyPressEventId = 0;
this._fullGeometry = null;
this.actor.connect('destroy', this._onDestroy.bind(this));
}
_onDestroy() {
if (this._notifyOpacityId) {
let parent = this.actor.get_parent();
if (parent)
parent.disconnect(this._notifyOpacityId);
this._notifyOpacityId = 0;
}
if (this._parentSetLater) {
Meta.later_remove(this._parentSetLater);
this._parentSetLater = 0;
}
}
_onPan(action) {
@ -717,7 +733,11 @@ var WorkspacesDisplay = class {
oldParent.disconnect(this._notifyOpacityId);
this._notifyOpacityId = 0;
Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
if (this._parentSetLater)
return;
this._parentSetLater = Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
this._parentSetLater = 0;
let newParent = this.actor.get_parent();
if (!newParent)
return;