Add a ShortcutsWindow and tooltips to display accelerators

The GtkShortcutsWindow is shown upon pressing `?`.
This is only available in Gtk+ >= 3.20.
For earlier versions nothing happens.

1 files changed, 9 insertions, 0 deletions

diff --git a/voctogui/lib/ui.py b/voctogui/lib/ui.py
index 63f6c33..7da3ba4 100644
--- a/voctogui/lib/ui.py
+++ b/voctogui/lib/ui.py
@@ -16,6 +16,8 @@ from lib.toolbar.composition import CompositionToolbarController
 from lib.toolbar.streamblank import StreamblankToolbarController
 from lib.toolbar.misc import MiscToolbarController
 
+from lib.shortcuts import show_shortcuts
+
 
 class Ui(UiBuilder):
 
@@ -92,6 +94,13 @@ class Ui(UiBuilder):
             uibuilder=self
         )
 
+        # Setup Shortcuts window
+        self.win.connect('key-press-event', self.handle_keypress)
+
+    def handle_keypress(self, window, event):
+        if event.keyval == Gdk.KEY_question:
+            show_shortcuts(window)
+
     def show(self):
         self.log.info('Showing Main-Window')
         self.win.show_all()