keyboard: Unset Idle ID before removing it

When toggling keyboard various times, we might get an error because trying to
disconnect an idle that isn't set anymore.

This is because when we remove the idle, we don't unset the ID.
Also clear the idle when destroying the keyboard.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/540

diff --git a/js/ui/keyboard.js b/js/ui/keyboard.js
index 6d4585de85651ea671e97fdec9eb11035c6cfa09..df2e3ed2f8448812b0a928b3238bad2005e1745f 100644 (file)
--- a/js/ui/keyboard.js
+++ b/js/ui/keyboard.js
@@ -1144,6 +1144,7 @@ var Keyboard = class Keyboard {
             this._keyboardController.disconnect(this._keypadVisibleId);
         if (this._focusNotifyId)
             global.stage.disconnect(this._focusNotifyId);
+        this._clearShowIdle();
         this._keyboard = null;
         this.actor.destroy();
         this.actor = null;
@@ -1229,6 +1230,7 @@ var Keyboard = class Keyboard {
         if (!this._showIdleId) {
           this._showIdleId = GLib.idle_add(GLib.PRIORITY_DEFAULT_IDLE, () => {
               this.show(Main.layoutManager.focusIndex);
+              this._showIdleId = 0;
               return GLib.SOURCE_REMOVE;
           });
           GLib.Source.set_name_by_id(this._showIdleId, '[gnome-shell] this.show');