g_source_remove: assertion 'tag > 0' failed

[boennhoff]

The extension floods the system log with the following error:

gnome-session[600]: (gnome-shell:684): GLib-CRITICAL **: g_source_remove: assertion 'tag > 0' failed

Reproducible when the mouse leaves one of the taskbar icons (running apps). Swiping over the extensions area with the mouse will result in dozens of these errors.

TaskBar: 40 (installed as user)
Gnome: 3.14
System: Arch Linux

[boennhoff]

Hmmm, i fixed the problem myself by adding checks for null:

Mainloop.source_remove(this.previewTimer2);
this.previewTimer2 = null;

became

if (this.previewTimer2 != null) {
    Mainloop.source_remove(this.previewTimer2)
    this.previewTimer2 = null;
}

in all found places in extension.js

Sorry, for not providing a pull request, but i got no time for that right now...

[zpydr]

Wow - This was nagging me for some time. Already updated TaskBar. Thank you very much!