[nautilus] Fix sensitivity of "{Copy|Move} to other pane after enable/disable of extra pane"

[Holger Berndt <hb src gnome org>]

commit 85c0047c370b06473026b2920dc53428bd3c30ae
Author: Holger Berndt <hb gnome org>
Date:   Mon Mar 22 22:16:52 2010 +0100

    Fix sensitivity of "{Copy|Move} to other pane after enable/disable of extra pane"
    
    Add an "update_menus" signal to the NautilusView interface, so that external events
    can trigger a menu sensitivity update.
    Fixes bug 613257.

 libnautilus-private/nautilus-view.c    |   10 ++++++++++
 libnautilus-private/nautilus-view.h    |    2 ++
 src/file-manager/fm-directory-view.c   |    7 +++++++
 src/nautilus-navigation-window-menus.c |    6 ++++++
 4 files changed, 25 insertions(+), 0 deletions(-)
---
diff --git a/libnautilus-private/nautilus-view.c b/libnautilus-private/nautilus-view.c
index 67d53d5..1968810 100644
--- a/libnautilus-private/nautilus-view.c
+++ b/libnautilus-private/nautilus-view.c
@@ -268,6 +268,16 @@ nautilus_view_grab_focus (NautilusView   *view)
 }
 
 void
+nautilus_view_update_menus (NautilusView *view)
+{
+	g_return_if_fail (NAUTILUS_IS_VIEW (view));
+
+	if (NAUTILUS_VIEW_GET_IFACE (view)->update_menus != NULL) {
+		(* NAUTILUS_VIEW_GET_IFACE (view)->update_menus) (view);
+	}
+}
+
+void
 nautilus_view_pop_up_location_context_menu (NautilusView   *view,
 					    GdkEventButton *event,
 					    const char     *location)
diff --git a/libnautilus-private/nautilus-view.h b/libnautilus-private/nautilus-view.h
index 4e9b088..6571572 100644
--- a/libnautilus-private/nautilus-view.h
+++ b/libnautilus-private/nautilus-view.h
@@ -108,6 +108,7 @@ struct _NautilusViewIface
         gboolean       (* can_zoom_out)	 	  (NautilusView          *view);
 
         void           (* grab_focus)             (NautilusView          *view);
+        void           (* update_menus)           (NautilusView          *view);
 
 	/* Request popup of context menu referring to the open location.
 	 * This is triggered in spatial windows by right-clicking the location button,
@@ -171,6 +172,7 @@ void              nautilus_view_pop_up_location_context_menu (NautilusView    *v
 							      GdkEventButton  *event,
 							      const char      *location);
 void              nautilus_view_grab_focus                 (NautilusView      *view);
+void              nautilus_view_update_menus               (NautilusView      *view);
 void              nautilus_view_drop_proxy_received_uris   (NautilusView         *view,
 							    GList                *uris,
 							    const char           *target_location,
diff --git a/src/file-manager/fm-directory-view.c b/src/file-manager/fm-directory-view.c
index 0997a15..d8b9050 100644
--- a/src/file-manager/fm-directory-view.c
+++ b/src/file-manager/fm-directory-view.c
@@ -1784,6 +1784,12 @@ fm_directory_view_grab_focus (NautilusView *view)
 	}
 }
 
+static void
+view_iface_update_menus (NautilusView *view)
+{
+	fm_directory_view_update_menus (FM_DIRECTORY_VIEW (view));
+}
+
 static GtkWidget *
 fm_directory_view_get_widget (NautilusView *view)
 {
@@ -1872,6 +1878,7 @@ void
 fm_directory_view_init_view_iface (NautilusViewIface *iface)
 {
 	iface->grab_focus = fm_directory_view_grab_focus;
+	iface->update_menus = view_iface_update_menus;
 
 	iface->get_widget = fm_directory_view_get_widget;
   	iface->load_location = fm_directory_view_load_location;
diff --git a/src/nautilus-navigation-window-menus.c b/src/nautilus-navigation-window-menus.c
index ec48324..5b47345 100644
--- a/src/nautilus-navigation-window-menus.c
+++ b/src/nautilus-navigation-window-menus.c
@@ -261,11 +261,17 @@ action_split_view_callback (GtkAction *action,
 
 	is_active = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action));
 	if (is_active != nautilus_navigation_window_split_view_showing (window)) {
+		NautilusWindow *nautilus_window;
+
 		if (is_active) {
 			nautilus_navigation_window_split_view_on (window);
 		} else {
 			nautilus_navigation_window_split_view_off (window);
 		}
+		nautilus_window = NAUTILUS_WINDOW (window);
+		if (nautilus_window->details->active_pane && nautilus_window->details->active_pane->active_slot) {
+			nautilus_view_update_menus (nautilus_window->details->active_pane->active_slot->content_view);
+		}
 	}
 }