replace toggle item for connection with GtkSwitch

data/gtk.glade

@@ -646,17 +646,26 @@
         <property name="visible">True</property>
         <property name="can_focus">False</property>
         <property name="show_close_button">True</property>
+        <child>
+          <placeholder/>
+        </child>
         <child>
           <object class="GtkToolbar">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <property name="show_arrow">False</property>
             <child>
-              <object class="GtkToggleToolButton" id="headerbar-connect">
+              <object class="GtkToolItem">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
-                <property name="icon_name">gtk-disconnect</property>
+                <child>
-                <signal name="toggled" handler="on_headerbar-connect_toggled" swapped="no"/>
+                  <object class="GtkSwitch" id="headerbar-connection">
+                    <property name="visible">True</property>
+                    <property name="can_focus">True</property>
+                    <signal name="notify::active" handler="on_headerbar-connection_active_notify" swapped="no"/>
+                    <signal name="state-set" handler="on_headerbar-connection_state_set" swapped="no"/>
+                  </object>
+                </child>
               </object>
               <packing>
                 <property name="expand">False</property>
@@ -690,6 +699,9 @@
               <class name="no-bg"/>
             </style>
           </object>
+          <packing>
+            <property name="position">1</property>
+          </packing>
         </child>
         <child type="title">
           <object class="GtkStackSwitcher" id="header-panelswitcher">

mcg/mcgGtk.py

@@ -426,7 +426,7 @@ class Window():
 
 class HeaderBar(mcg.Base):
     SIGNAL_STACK_SWITCHED = 'stack-switched'
-    SIGNAL_CONNECT = 'on_headerbar-connect_toggled'
+    SIGNAL_CONNECT = 'on_headerbar-connection_active_notify'
     SIGNAL_PLAYPAUSE = 'on_headerbar-playpause_toggled'
     SIGNAL_SET_VOLUME = 'set-volume'
 
@@ -441,14 +441,15 @@ class HeaderBar(mcg.Base):
         # Widgets
         self._header_bar = builder.get_object('headerbar')
         self._stack_switcher = StackSwitcher(builder)
-        self._buttons[HeaderBar.SIGNAL_CONNECT] = builder.get_object('headerbar-connect')
+        self._buttons[HeaderBar.SIGNAL_CONNECT] = builder.get_object('headerbar-connection')
         self._buttons[HeaderBar.SIGNAL_PLAYPAUSE] = builder.get_object('headerbar-playpause')
         self._buttons[HeaderBar.SIGNAL_SET_VOLUME] = builder.get_object('headerbar-volume')
 
         # Signals
         self._stack_switcher.connect_signal(StackSwitcher.SIGNAL_STACK_SWITCHED, self.on_stack_switched)
         self._button_handlers = {
-            'on_headerbar-connect_toggled': self._callback_from_widget,
+            'on_headerbar-connection_active_notify': self._callback_from_widget,
+            'on_headerbar-connection_state_set': self.on_connection_state_set,
             'on_headerbar-playpause_toggled': self._callback_from_widget,
             'on_headerbar-volume_value_changed': self.on_volume_changed,
             'on_headerbar-volume_button_press_event': self.on_volume_press,
@@ -471,6 +472,10 @@ class HeaderBar(mcg.Base):
         self._buttons[HeaderBar.SIGNAL_CONNECT].set_sensitive(not connecting)
 
 
+    def on_connection_state_set(self, widget, state):
+        return True
+
+
     def on_stack_switched(self, widget):
         self._callback(HeaderBar.SIGNAL_STACK_SWITCHED, widget)
 
@@ -496,8 +501,8 @@ class HeaderBar(mcg.Base):
         self._buttons[HeaderBar.SIGNAL_CONNECT].handler_block_by_func(
             self._button_handlers[HeaderBar.SIGNAL_CONNECT]
         )
-        self._buttons[HeaderBar.SIGNAL_CONNECT].set_stock_id(Gtk.STOCK_CONNECT)
         self._buttons[HeaderBar.SIGNAL_CONNECT].set_active(True)
+        self._buttons[HeaderBar.SIGNAL_CONNECT].set_state(True)
         self._buttons[HeaderBar.SIGNAL_CONNECT].handler_unblock_by_func(
             self._button_handlers[HeaderBar.SIGNAL_CONNECT]
         )
@@ -507,8 +512,8 @@ class HeaderBar(mcg.Base):
         self._buttons[HeaderBar.SIGNAL_CONNECT].handler_block_by_func(
             self._button_handlers[HeaderBar.SIGNAL_CONNECT]
         )
-        self._buttons[HeaderBar.SIGNAL_CONNECT].set_stock_id(Gtk.STOCK_DISCONNECT)
         self._buttons[HeaderBar.SIGNAL_CONNECT].set_active(False)
+        self._buttons[HeaderBar.SIGNAL_CONNECT].set_state(False)
         self._buttons[HeaderBar.SIGNAL_CONNECT].handler_unblock_by_func(
             self._button_handlers[HeaderBar.SIGNAL_CONNECT]
         )
@@ -545,7 +550,7 @@ class HeaderBar(mcg.Base):
             self._buttons[HeaderBar.SIGNAL_SET_VOLUME].set_visible(False)
 
 
-    def _callback_from_widget(self, widget):
+    def _callback_from_widget(self, widget, *args):
         if widget is self._buttons[HeaderBar.SIGNAL_CONNECT]:
             self._callback(self.SIGNAL_CONNECT)
         elif widget is self._buttons[HeaderBar.SIGNAL_PLAYPAUSE]: