bluetooth: Do not sync() immediately on model changes

Our intended behavior when bluetooth is turned off is to keep
the menu visible if devices had been set up previously.

However since gnome-bluetooth@c437c729, devices are removed
first before removing the default adapter, so we now end up
always setting the property to false before checking for it.

Fix this by deferring all model changes to an idle, so that
we can process them as a unit. Do the same for proxy property
changes, as those may trigger a row-removal.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1174

diff --git a/js/ui/status/bluetooth.js b/js/ui/status/bluetooth.js
index 0c43749feec1d17644dccc7c20bf5cddc3e075c9..a5b714ccc7577f1d2253fc07c3e4a03793139c8e 100644 (file)
--- a/js/ui/status/bluetooth.js
+++ b/js/ui/status/bluetooth.js
@@ -1,7 +1,7 @@
 // -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
 /* exported Indicator */
 
-const { Gio, GnomeBluetooth, GObject } = imports.gi;
+const { Gio, GLib, GnomeBluetooth, GObject } = imports.gi;
 
 const Main = imports.ui.main;
 const PanelMenu = imports.ui.panelMenu;
@@ -35,7 +35,7 @@ class Indicator extends PanelMenu.SystemIndicator {
 
                                                  this._sync();
                                              });
-        this._proxy.connect('g-properties-changed', this._sync.bind(this));
+        this._proxy.connect('g-properties-changed', this._queueSync.bind(this));
 
         this._item = new PopupMenu.PopupSubMenuMenuItem(_("Bluetooth"), true);
         this._item.icon.icon_name = 'bluetooth-active-symbolic';
@@ -49,10 +49,12 @@ class Indicator extends PanelMenu.SystemIndicator {
         this._item.menu.addSettingsAction(_("Bluetooth Settings"), 'gnome-bluetooth-panel.desktop');
         this.menu.addMenuItem(this._item);
 
+        this._syncId = 0;
+
         this._client = new GnomeBluetooth.Client();
         this._model = this._client.get_model();
-        this._model.connect('row-changed', this._sync.bind(this));
-        this._model.connect('row-deleted', this._sync.bind(this));
+        this._model.connect('row-deleted', this._queueSync.bind(this));
+        this._model.connect('row-changed', this._queueSync.bind(this));
         this._model.connect('row-inserted', this._sync.bind(this));
         Main.sessionMode.connect('updated', this._sync.bind(this));
         this._sync();
@@ -104,6 +106,16 @@ class Indicator extends PanelMenu.SystemIndicator {
         return deviceInfos;
     }
 
+    _queueSync() {
+        if (this._syncId)
+            return;
+        this._syncId = GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
+            this._syncId = 0;
+            this._sync();
+            return GLib.SOURCE_REMOVE;
+        });
+    }
+
     _sync() {
         let adapter = this._getDefaultAdapter();
         let devices = this._getDeviceInfos(adapter);