files-view: don't open folder with timer for drag&drop

We were opening the hovered folder after a timeout when performing a
drag and drop operation.
However, this causes that the user could lose track of were the user was
and fail the dnd operation, or even worse, drop in a unknow location and
makes the whole operation rather anoying.
Also looks like could be a problem for disabled people.

So instead just don't open locations on hover for the main view.

Pathbar remains opening with the timer on hover, since the pathbar
itself doesn't change and therefore the user don't lose the track.

https://bugzilla.gnome.org/show_bug.cgi?id=727790

src/nautilus-canvas-view.c

@@ -1773,14 +1773,6 @@ canvas_view_handle_raw (NautilusCanvasContainer *container, const char *raw_data
 				       raw_data, length, target_uri, direct_save_uri, action, x, y);
 }
 
-static void
-canvas_view_handle_hover (NautilusCanvasContainer *container,
-			  const char *target_uri,
-			  NautilusCanvasView *view)
-{
-	nautilus_files_view_handle_hover (NAUTILUS_FILES_VIEW (view), target_uri);
-}
-
 static char *
 canvas_view_get_first_visible_file (NautilusFilesView *view)
 {
@@ -2006,8 +1998,6 @@ nautilus_canvas_view_init (NautilusCanvasView *canvas_view)
 				 G_CALLBACK (canvas_view_handle_text), canvas_view, 0);
 	g_signal_connect_object (canvas_container, "handle-raw",
 				 G_CALLBACK (canvas_view_handle_raw), canvas_view, 0);
-	g_signal_connect_object (canvas_container, "handle-hover",
-				 G_CALLBACK (canvas_view_handle_hover), canvas_view, 0);
 
 	canvas_view->details->clipboard_handler_id =
 		g_signal_connect (nautilus_clipboard_monitor_get (),

src/nautilus-files-view-dnd.c

@@ -523,28 +523,3 @@ nautilus_files_view_drop_proxy_received_uris (NautilusFilesView *view,
 
         g_free (container_uri);
 }
-
-void
-nautilus_files_view_handle_hover (NautilusFilesView *view,
-                                  const char        *target_uri)
-{
-        NautilusWindowSlot *slot;
-        GFile *location;
-        GFile *current_location;
-        NautilusFile *target_file;
-        gboolean target_is_dir;
-
-        slot = nautilus_files_view_get_nautilus_window_slot (view);
-
-        location = g_file_new_for_uri (target_uri);
-        target_file = nautilus_file_get_existing (location);
-        target_is_dir = nautilus_file_get_file_type (target_file) == G_FILE_TYPE_DIRECTORY;
-        current_location = nautilus_window_slot_get_location (slot);
-        if (target_is_dir && ! (current_location != NULL && g_file_equal(location, current_location))) {
-                nautilus_application_open_location_full (NAUTILUS_APPLICATION (g_application_get_default ()),
-                                                         location, NAUTILUS_WINDOW_OPEN_FLAG_DONT_MAKE_ACTIVE,
-                                                         NULL, NULL, slot);
-        }
-        g_object_unref (location);
-        nautilus_file_unref (target_file);
-}

src/nautilus-files-view-dnd.h

@@ -56,8 +56,6 @@ void nautilus_files_view_handle_raw_drop          (NautilusFilesView *view,
                                                    GdkDragAction      action,
                                                    int                x,
                                                    int                y);
-void nautilus_files_view_handle_hover             (NautilusFilesView *view,
-                                                   const char        *target_uri);
 
 void nautilus_files_view_drop_proxy_received_uris (NautilusFilesView *view,
                                                    const GList       *uris,

src/nautilus-list-view.c

@@ -1295,14 +1295,6 @@ list_view_handle_raw (NautilusTreeViewDragDest *dest, const char *raw_data,
 }
 
 static void
-list_view_handle_hover (NautilusTreeViewDragDest *dest,
-			const char *target_uri,
-			NautilusListView *view)
-{
-	nautilus_files_view_handle_hover (NAUTILUS_FILES_VIEW (view), target_uri);
-}
-
-static void
 move_copy_items_callback (NautilusTreeViewDragDest *dest,
 			  const GList *item_uris,
 			  const char *target_uri,
@@ -1834,8 +1826,6 @@ create_and_set_up_tree_view (NautilusListView *view)
 				 G_CALLBACK (list_view_handle_text), view, 0);
 	g_signal_connect_object (view->details->drag_dest, "handle-raw",
 				 G_CALLBACK (list_view_handle_raw), view, 0);
-	g_signal_connect_object (view->details->drag_dest, "handle-hover",
-				 G_CALLBACK (list_view_handle_hover), view, 0);
 
 	g_signal_connect_object (gtk_tree_view_get_selection (view->details->tree_view),
 				 "changed",