From e8ddb23b3a6a7f2981b09feaaaf5250f63d14f36 Mon Sep 17 00:00:00 2001 From: Cosimo Cecchi Date: Sun, 26 May 2019 08:31:07 -0700 Subject: [PATCH] windowAttentionHandler: disconnect signals before destruction MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The 'destroy' signal is emitted at the end of the destroy() method. However the implementation of destroy() can end up emitting one of the signals we connect to on the window, causing us to re-enter destroy from its callback. That will in turn lead to some objects getting disposed twice, which produces a stack trace like the following one. This commit fixes the issue by overriding the destroy() method instead of connecting to the signal, which allows us to disconnect the signal handlers from the window at an earlier time and avoid re-entrancy. -- gnome-shell[1082]: Object Gio.Settings (0x7f0af8143f00), has been already deallocated — impossible to access it. This might be caused by the object having been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs. org.gnome.Shell.desktop[1082]: == Stack trace for context 0x5627f7d1e220 == org.gnome.Shell.desktop[1082]: #0 5627f9e801a8 i resource:///org/gnome/shell/ui/messageTray.js:238 (7f0aefa9eca0 @ 22) org.gnome.Shell.desktop[1082]: #1 5627f9e80108 i resource:///org/gnome/shell/ui/messageTray.js:802 (7f0aefaa2ee0 @ 28) org.gnome.Shell.desktop[1082]: #2 5627f9e80070 i resource:///org/gnome/shell/ui/windowAttentionHandler.js:79 (7f0aef7b29d0 @ 62) org.gnome.Shell.desktop[1082]: #3 7fffa69fbfc0 b self-hosted:979 (7f0aefa515e0 @ 440) org.gnome.Shell.desktop[1082]: #4 5627f9e7ffe0 i resource:///org/gnome/shell/ui/messageTray.js:121 (7f0aefa9e1f0 @ 71) org.gnome.Shell.desktop[1082]: #5 5627f9e7ff38 i resource:///org/gnome/shell/ui/messageTray.js:1408 (7f0aefaa58b0 @ 22) org.gnome.Shell.desktop[1082]: #6 5627f9e7fe80 i resource:///org/gnome/shell/ui/messageTray.js:1237 (7f0aefaa51f0 @ 729) org.gnome.Shell.desktop[1082]: #7 5627f9e7fde8 i resource:///org/gnome/shell/ui/messageTray.js:1055 (7f0aefaa3d30 @ 124) org.gnome.Shell.desktop[1082]: #8 7fffa69ff8e0 b self-hosted:979 (7f0aefa515e0 @ 440) org.gnome.Shell.desktop[1082]: #9 7fffa69ff9d0 b resource:///org/gnome/gjs/modules/signals.js:142 (7f0aefccb670 @ 386) org.gnome.Shell.desktop[1082]: #10 5627f9e7fd58 i resource:///org/gnome/shell/ui/messageTray.js:479 (7f0aefaa0940 @ 50) org.gnome.Shell.desktop[1082]: #11 5627f9e7fcb8 i resource:///org/gnome/shell/ui/messageTray.js:808 (7f0aefaa2ee0 @ 99) org.gnome.Shell.desktop[1082]: #12 5627f9e7fc28 i resource:///org/gnome/shell/ui/windowAttentionHandler.js:69 (7f0aef7b28b0 @ 13) org.gnome.Shell.desktop[1082]: #13 5627f9e7fb80 i resource:///org/gnome/shell/ui/main.js:566 (7f0aefcd8820 @ 216) org.gnome.Shell.desktop[1082]: #14 5627f9e7fad0 i resource:///org/gnome/shell/ui/windowAttentionHandler.js:103 (7f0aef7b2c10 @ 27) org.gnome.Shell.desktop[1082]: #15 5627f9e7fa58 i resource:///org/gnome/shell/ui/windowAttentionHandler.js:43 (7f0aef7b2700 @ 17) org.gnome.Shell.desktop[1082]: #16 7fffa6a03350 b resource:///org/gnome/gjs/modules/signals.js:142 (7f0aefccb670 @ 386) org.gnome.Shell.desktop[1082]: #17 5627f9e7f9d0 i resource:///org/gnome/shell/ui/messageTray.js:471 (7f0aefaa08b0 @ 22) org.gnome.Shell.desktop[1082]: #18 5627f9e7f950 i resource:///org/gnome/shell/ui/calendar.js:752 (7f0aefaabdc0 @ 22) org.gnome.Shell.desktop[1082]: #19 7fffa6a048f0 b self-hosted:979 (7f0aefa515e0 @ 440) org.gnome.Shell.desktop[1082]: == Stack trace for context 0x5627f7d1e220 == org.gnome.Shell.desktop[1082]: #0 5627f9e801a8 i resource:///org/gnome/shell/ui/messageTray.js:239 (7f0aefa9eca0 @ 42) org.gnome.Shell.desktop[1082]: #1 5627f9e80108 i resource:///org/gnome/shell/ui/messageTray.js:802 (7f0aefaa2ee0 @ 28) org.gnome.Shell.desktop[1082]: #2 5627f9e80070 i resource:///org/gnome/shell/ui/windowAttentionHandler.js:79 (7f0aef7b29d0 @ 62) org.gnome.Shell.desktop[1082]: #3 7fffa69fbfc0 b self-hosted:979 (7f0aefa515e0 @ 440) org.gnome.Shell.desktop[1082]: #4 5627f9e7ffe0 i resource:///org/gnome/shell/ui/messageTray.js:121 (7f0aefa9e1f0 @ 71) org.gnome.Shell.desktop[1082]: #5 5627f9e7ff38 i resource:///org/gnome/shell/ui/messageTray.js:1408 (7f0aefaa58b0 @ 22) org.gnome.Shell.desktop[1082]: #6 5627f9e7fe80 i resource:///org/gnome/shell/ui/messageTray.js:1237 (7f0aefaa51f0 @ 729) org.gnome.Shell.desktop[1082]: #7 5627f9e7fde8 i resource:///org/gnome/shell/ui/messageTray.js:1055 (7f0aefaa3d30 @ 124) org.gnome.Shell.desktop[1082]: #8 7fffa69ff8e0 b self-hosted:979 (7f0aefa515e0 @ 440) org.gnome.Shell.desktop[1082]: #9 7fffa69ff9d0 b resource:///org/gnome/gjs/modules/signals.js:142 (7f0aefccb670 @ 386) org.gnome.Shell.desktop[1082]: #10 5627f9e7fd58 i resource:///org/gnome/shell/ui/messageTray.js:479 (7f0aefaa0940 @ 50) org.gnome.Shell.desktop[1082]: #11 5627f9e7fcb8 i resource:///org/gnome/shell/ui/messageTray.js:808 (7f0aefaa2ee0 @ 99) org.gnome.Shell.desktop[1082]: #12 5627f9e7fc28 i resource:///org/gnome/shell/ui/windowAttentionHandler.js:69 (7f0aef7b28b0 @ 13) org.gnome.Shell.desktop[1082]: #13 5627f9e7fb80 i resource:///org/gnome/shell/ui/main.js:566 (7f0aefcd8820 @ 216) org.gnome.Shell.desktop[1082]: #14 5627f9e7fad0 i resource:///org/gnome/shell/ui/windowAttentionHandler.js:103 (7f0aef7b2c10 @ 27) org.gnome.Shell.desktop[1082]: #15 5627f9e7fa58 i resource:///org/gnome/shell/ui/windowAttentionHandler.js:43 (7f0aef7b2700 @ 17) org.gnome.Shell.desktop[1082]: #16 7fffa6a03350 b resource:///org/gnome/gjs/modules/signals.js:142 (7f0aefccb670 @ 386) org.gnome.Shell.desktop[1082]: #17 5627f9e7f9d0 i resource:///org/gnome/shell/ui/messageTray.js:471 (7f0aefaa08b0 @ 22) org.gnome.Shell.desktop[1082]: #18 5627f9e7f950 i resource:///org/gnome/shell/ui/calendar.js:752 (7f0aefaabdc0 @ 22) org.gnome.Shell.desktop[1082]: #19 7fffa6a048f0 b self-hosted:979 (7f0aefa515e0 @ 440) gnome-shell[1082]: g_object_run_dispose: assertion 'G_IS_OBJECT (object)' failed gnome-shell[1082]: Object Gio.Settings (0x7f0af8161750), has been already deallocated — impossible to access it. This might be caused by the object having been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs. gnome-shell[1082]: g_object_run_dispose: assertion 'G_IS_OBJECT (object)' failed https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/555 --- js/ui/windowAttentionHandler.js | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/js/ui/windowAttentionHandler.js b/js/ui/windowAttentionHandler.js index abdb8a444..a9a7111ba 100644 --- a/js/ui/windowAttentionHandler.js +++ b/js/ui/windowAttentionHandler.js @@ -69,8 +69,6 @@ var Source = class WindowAttentionSource extends MessageTray.Source { () => { this.destroy(); })); this.signalIDs.push(this._window.connect('unmanaged', () => { this.destroy(); })); - - this.connect('destroy', this._onDestroy.bind(this)); } _sync() { @@ -79,13 +77,6 @@ var Source = class WindowAttentionSource extends MessageTray.Source { this.destroy(); } - _onDestroy() { - for(let i = 0; i < this.signalIDs.length; i++) { - this._window.disconnect(this.signalIDs[i]); - } - this.signalIDs = []; - } - _createPolicy() { if (this._app && this._app.get_app_info()) { let id = this._app.get_id().replace(/\.desktop$/,''); @@ -99,6 +90,14 @@ var Source = class WindowAttentionSource extends MessageTray.Source { return this._app.create_icon_texture(size); } + destroy(params) { + for (let i = 0; i < this.signalIDs.length; i++) + this._window.disconnect(this.signalIDs[i]); + this.signalIDs = []; + + super.destroy(params); + } + open() { Main.activateWindow(this._window); }