filechooserentry: Catch tab key earlier

Instead of in the key_press handler, use a signal handler. The signal
handler runs before the default handler, and before other signal
handlers. In particular it runs before the signal handler installed via
gtk_entry_set_completion() which pops down the entry completion, and we
don't want that to happen.

The code does not change the code of the handler in any significant way,
it just refacotrs it to not call the parent anymore.

https://bugzilla.gnome.org/show_bug.cgi?id=663573

diff --git a/gtk/gtkfilechooserentry.c b/gtk/gtkfilechooserentry.c
index 50d346263d82b1c46cb89b6b1af9c4f7b39d32cf..fb6c2b015a02f8766c469241e22ff34286a6374e 100644 (file)
--- a/gtk/gtkfilechooserentry.c
+++ b/gtk/gtkfilechooserentry.c
@@ -74,8 +74,8 @@ enum
 static void     gtk_file_chooser_entry_finalize       (GObject          *object);
 static void     gtk_file_chooser_entry_dispose        (GObject          *object);
 static void     gtk_file_chooser_entry_grab_focus     (GtkWidget        *widget);
-static gboolean gtk_file_chooser_entry_key_press_event (GtkWidget *widget,
-                                                       GdkEventKey *event);
+static gboolean gtk_file_chooser_entry_tab_handler    (GtkWidget *widget,
+                                                      GdkEventKey *event);
 static gboolean gtk_file_chooser_entry_focus_out_event (GtkWidget       *widget,
                                                        GdkEventFocus   *event);
 
@@ -154,7 +154,6 @@ _gtk_file_chooser_entry_class_init (GtkFileChooserEntryClass *class)
   gobject_class->dispatch_properties_changed = gtk_file_chooser_entry_dispatch_properties_changed;
 
   widget_class->grab_focus = gtk_file_chooser_entry_grab_focus;
-  widget_class->key_press_event = gtk_file_chooser_entry_key_press_event;
   widget_class->focus_out_event = gtk_file_chooser_entry_focus_out_event;
 }
 
@@ -193,6 +192,10 @@ _gtk_file_chooser_entry_init (GtkFileChooserEntry *chooser_entry)
 
   gtk_entry_set_completion (GTK_ENTRY (chooser_entry), comp);
   g_object_unref (comp);
+  /* NB: This needs to happen after the completion is set, so this handler
+   * runs before the handler installed by entrycompletion */
+  g_signal_connect (chooser_entry, "key-press-event",
+                    G_CALLBACK (gtk_file_chooser_entry_tab_handler), NULL);
 
 #ifdef G_OS_WIN32
   g_signal_connect (chooser_entry, "insert-text",
@@ -378,46 +381,37 @@ start_explicit_completion (GtkFileChooserEntry *chooser_entry)
 }
 
 static gboolean
-gtk_file_chooser_entry_key_press_event (GtkWidget *widget,
-                                       GdkEventKey *event)
+gtk_file_chooser_entry_tab_handler (GtkWidget *widget,
+                                   GdkEventKey *event)
 {
   GtkFileChooserEntry *chooser_entry;
   GtkEditable *editable;
   GdkModifierType state;
-  gboolean control_pressed;
+  gint start, end;
 
   chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget);
   editable = GTK_EDITABLE (widget);
 
   if (!chooser_entry->eat_tabs)
-    return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->key_press_event (widget, event);
+    return FALSE;
 
-  control_pressed = FALSE;
+  if (event->keyval != GDK_KEY_Tab)
+    return FALSE;
 
-  if (gtk_get_current_event_state (&state))
-    {
-      if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
-       control_pressed = TRUE;
-    }
+  if (gtk_get_current_event_state (&state) &&
+      (state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
+    return FALSE;
 
   /* This is a bit evil -- it makes Tab never leave the entry. It basically
    * makes it 'safe' for people to hit. */
-  if (event->keyval == GDK_KEY_Tab && !control_pressed)
-    {
-      gint start, end;
-
-      gtk_editable_get_selection_bounds (editable, &start, &end);
+  gtk_editable_get_selection_bounds (editable, &start, &end);
       
-      if (start != end)
-        gtk_editable_set_position (editable, MAX (start, end));
-      else
-       start_explicit_completion (chooser_entry);
-
-      return TRUE;
-     }
-
-  return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->key_press_event (widget, event);
+  if (start != end)
+    gtk_editable_set_position (editable, MAX (start, end));
+  else
+    start_explicit_completion (chooser_entry);
 
+  return TRUE;
 }
 
 static gboolean