[gnome-music/wip/jfelder/lastfm-ui-part-2: 9/10] appmenu: Add a menu to configure Last.fm scrobbler

[Jean Felder <jfelder src gnome org>]

commit b277461da2d8c115c907eceb343507bf5e233709
Author: Jean Felder <jfelder src gnome org>
Date:   Tue Jan 14 21:06:37 2020 +0100

    appmenu: Add a menu to configure Last.fm scrobbler
    
    The LastfmDialog can be launched if a Last.fm account can be
    configured (scrobbler's state is at least NOT_CONFIGURED).
    If Goa Last.fm support is disabled, the button stays insensitive.
    
    Related: #218

 data/ui/AppMenu.ui            |  3 ++-
 gnomemusic/application.py     |  7 +++++++
 gnomemusic/widgets/appmenu.py | 10 +++++++++-
 3 files changed, 18 insertions(+), 2 deletions(-)
---
diff --git a/data/ui/AppMenu.ui b/data/ui/AppMenu.ui
index ae301568..c2d57db3 100644
--- a/data/ui/AppMenu.ui
+++ b/data/ui/AppMenu.ui
@@ -11,12 +11,13 @@
         <property name="margin">6</property>
         <property name="orientation">vertical</property>
         <child>
-          <object class="GtkModelButton" id="lastfm_account_button">
+          <object class="GtkModelButton" id="_lastfm_configure_button">
             <property name="can_focus">False</property>
             <property name="halign">fill</property>
             <property name="hexpand">False</property>
             <property name="sensitive">False</property>
             <property name="visible">True</property>
+            <property name="action_name">app.lastfm-configure</property>
             <property name="text" translatable="yes">Last.fm Account</property>
           </object>
           <packing>
diff --git a/gnomemusic/application.py b/gnomemusic/application.py
index cec31d2c..ba970f2e 100644
--- a/gnomemusic/application.py
+++ b/gnomemusic/application.py
@@ -44,6 +44,7 @@ from gnomemusic.pauseonsuspend import PauseOnSuspend
 from gnomemusic.player import Player
 from gnomemusic.scrobbler import LastFmScrobbler
 from gnomemusic.widgets.aboutdialog import AboutDialog
+from gnomemusic.widgets.lastfmdialog import LastfmDialog
 from gnomemusic.window import Window
 
 
@@ -145,6 +146,7 @@ class Application(Gtk.Application):
         action_entries = [
             ('about', self._about, None),
             ("help", self._help, ("app.help", ["F1"])),
+            ("lastfm-configure", self._lastfm_account, None),
             ("quit", self._quit, ("app.quit", ["<Ctrl>Q"]))
         ]
 
@@ -162,6 +164,11 @@ class Application(Gtk.Application):
         except GLib.Error:
             logging.warning("Help handler not available.")
 
+    def _lastfm_account(self, action, param):
+        lastfm_dialog = LastfmDialog(self._window, self._lastfm_scrobbler)
+        lastfm_dialog.run()
+        lastfm_dialog.destroy()
+
     @log
     def _about(self, action, param):
         about = AboutDialog()
diff --git a/gnomemusic/widgets/appmenu.py b/gnomemusic/widgets/appmenu.py
index 837f4318..c8063748 100644
--- a/gnomemusic/widgets/appmenu.py
+++ b/gnomemusic/widgets/appmenu.py
@@ -34,6 +34,7 @@ class AppMenu(Gtk.PopoverMenu):
     __gtype_name__ = "AppMenu"
 
     _lastfm_box = Gtk.Template.Child()
+    _lastfm_configure_button = Gtk.Template.Child()
     _lastfm_switch = Gtk.Template.Child()
 
     def __repr__(self):
@@ -54,7 +55,14 @@ class AppMenu(Gtk.PopoverMenu):
 
     def _on_scrobbler_state_changed(self, klass, args):
         state = self._lastfm_scrobbler.props.account_state
-        if state <= GoaLastFM.State.NOT_CONFIGURED:
+
+        if state == GoaLastFM.State.NOT_AVAILABLE:
+            self._lastfm_configure_button.props.sensitive = False
+            return
+
+        self._lastfm_configure_button.props.sensitive = True
+
+        if state == GoaLastFM.State.NOT_CONFIGURED:
             self._lastfm_box.props.sensitive = False
             if self._lastfm_switcher_id is not None:
                 self._lastfm_switch.disconnect(self._lastfm_switcher_id)