[gtk+] bgo#161489 - In the file chooser, let the left/right arrow keys switch focus between the file list a

[Federico Mena Quintero <federico src gnome org>]

commit d55ff39ad0e8cdfa2ce37c2551b2177026436c65
Author: Federico Mena Quintero <federico novell com>
Date:   Mon Jul 27 19:24:42 2009 -0500

    bgo#161489 - In the file chooser, let the left/right arrow keys switch focus between the file list and shortcuts
    
    Based on a patch by Christian Neumair <cneumair gnome org>
    
    Signed-off-by: Federico Mena Quintero <federico novell com>

 gtk/gtkfilechooserdefault.c |   34 ++++++++++++++++++++++++++++++----
 1 files changed, 30 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkfilechooserdefault.c b/gtk/gtkfilechooserdefault.c
index f296621..ff4d1cf 100644
--- a/gtk/gtkfilechooserdefault.c
+++ b/gtk/gtkfilechooserdefault.c
@@ -4055,14 +4055,28 @@ shortcuts_pane_create (GtkFileChooserDefault *impl,
   return vbox;
 }
 
+static gboolean
+key_is_left_or_right (GdkEventKey *event)
+{
+  guint modifiers;
+
+  modifiers = gtk_accelerator_get_default_mod_mask ();
+
+  return ((event->keyval == GDK_Right
+	   || event->keyval == GDK_KP_Right
+	   || event->keyval == GDK_Left
+	   || event->keyval == GDK_KP_Left)
+	  && (event->state & modifiers) == 0);
+}
+
 /* Handles key press events on the file list, so that we can trap Enter to
  * activate the default button on our own.  Also, checks to see if '/' has been
  * pressed.  See comment by tree_view_keybinding_cb() for more details.
  */
 static gboolean
-trap_activate_cb (GtkWidget   *widget,
-		  GdkEventKey *event,
-		  gpointer     data)
+browse_files_key_press_event_cb (GtkWidget   *widget,
+				 GdkEventKey *event,
+				 gpointer     data)
 {
   GtkFileChooserDefault *impl;
   int modifiers;
@@ -4082,6 +4096,12 @@ trap_activate_cb (GtkWidget   *widget,
       return TRUE;
     }
 
+  if (key_is_left_or_right (event))
+    {
+      gtk_widget_grab_focus (impl->browse_shortcuts_tree_view);
+      return TRUE;
+    }
+
   if ((event->keyval == GDK_Return
        || event->keyval == GDK_ISO_Enter
        || event->keyval == GDK_KP_Enter
@@ -4660,7 +4680,7 @@ create_file_list (GtkFileChooserDefault *impl)
   g_signal_connect (impl->browse_files_tree_view, "row-activated",
 		    G_CALLBACK (list_row_activated), impl);
   g_signal_connect (impl->browse_files_tree_view, "key-press-event",
-    		    G_CALLBACK (trap_activate_cb), impl);
+    		    G_CALLBACK (browse_files_key_press_event_cb), impl);
   g_signal_connect (impl->browse_files_tree_view, "popup-menu",
 		    G_CALLBACK (list_popup_menu_cb), impl);
   g_signal_connect (impl->browse_files_tree_view, "button-press-event",
@@ -10774,6 +10794,12 @@ shortcuts_key_press_event_cb (GtkWidget             *widget,
 
   modifiers = gtk_accelerator_get_default_mod_mask ();
 
+  if (key_is_left_or_right (event))
+    {
+      gtk_widget_grab_focus (impl->browse_files_tree_view);
+      return TRUE;
+    }
+
   if ((event->keyval == GDK_BackSpace
       || event->keyval == GDK_Delete
       || event->keyval == GDK_KP_Delete)