Show current library in title bar

src/calibre/gui2/actions/__init__.py

@@ -26,8 +26,8 @@ class InterfaceAction(QObject):
     If two :class:`InterfaceAction` objects have the same name, the one with higher
     priority takes precedence.
 
-    Sub-classes should implement the :meth:`genesis` and
-    :meth:`location_selected` methods.
+    Sub-classes should implement the :meth:`genesis`, :meth:`library_moved`,
+    :meth:`location_selected` and :meth:`initialization_complete` methods.
 
     Once initialized, this plugin has access to the main calibre GUI via the
     :attr:`gui` member. You can access other plugins by name, for example::
@@ -108,3 +108,17 @@ class InterfaceAction(QObject):
         '''
         pass
 
+    def library_changed(self, db):
+        '''
+        Called whenever the current library is changed.
+
+        :param db: The LibraryDatabase corresponding to the current library.
+        '''
+        pass
+
+    def initialization_complete(self):
+        '''
+        Called once per action when the initialization of the main GUI is
+        completed.
+        '''
+        pass

src/calibre/gui2/actions/choose_library.py

@@ -97,10 +97,21 @@ class ChooseLibraryAction(InterfaceAction):
             ac.triggered.connect(partial(self.qs_requested, i))
             self.choose_menu.addAction(ac)
 
-    def library_used(self, db):
+    def library_name(self):
+        db = self.gui.library_view.model().db
+        path = db.library_path
+        if isbytestring(path):
+            path = path.decode(filesystem_encoding)
+        path = path.replace(os.sep, '/')
+        return self.stats.pretty(path)
+
+    def library_changed(self, db):
         self.stats.library_used(db)
         self.build_menus()
 
+    def initialization_complete(self):
+        self.library_changed(self.gui.library_view.model().db)
+
     def build_menus(self):
         db = self.gui.library_view.model().db
         locations = list(self.stats.locations(db))

src/calibre/gui2/actions/fetch_news.py

@@ -31,7 +31,12 @@ class FetchNewsAction(InterfaceAction):
         self.qaction.setMenu(self.scheduler.news_menu)
         self.qaction.triggered.connect(
                 self.scheduler.show_dialog)
-        self.database_changed = self.scheduler.database_changed
+
+    def library_changed(self, db):
+        self.scheduler.database_changed(db)
+
+    def initialization_complete(self):
+        self.connect_scheduler()
 
     def connect_scheduler(self):
         self.scheduler.delete_old_news.connect(

src/calibre/gui2/ui.py

@@ -249,9 +249,10 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, # {{{
         self.read_settings()
         self.finalize_layout()
         self.donate_button.start_animation()
+        self.set_window_title()
 
-        self.iactions['Fetch News'].connect_scheduler()
-        self.iactions['Choose Library'].library_used(self.library_view.model().db)
+        for ac in self.iactions.values():
+            ac.initialization_complete()
 
     def start_content_server(self):
         from calibre.library.server.main import start_threaded_server
@@ -367,9 +368,14 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, # {{{
         self.saved_search.clear_to_help()
         self.book_details.reset_info()
         self.library_view.model().count_changed()
-        self.iactions['Fetch News'].database_changed(db)
         prefs['library_path'] = self.library_path
-        self.iactions['Choose Library'].library_used(self.library_view.model().db)
+        db = self.library_view.model().db
+        for action in self.iactions.values():
+            action.library_changed(db)
+        self.set_window_title()
+
+    def set_window_title(self):
+        self.setWindowTitle(__appname__ + u' - ||%s||'%self.iactions['Choose Library'].library_name())
 
 
     def location_selected(self, location):