Ignore drag&drop requests from a window onto itself

Avoids accidential DnD of an image into the same window (e.g. while
trying to scroll) and the resulting reload.

Eog bug http://bugzilla.gnome.org/show_bug.cgi?id=585069
Based on eog commit 6a406bf93969a73159b67eefe125f700a1f82126
From Felix Riemann <[email protected]>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/eom-window.c b/src/eom-window.c
index 0d9f636..2cb28e7 100644
--- a/src/eom-window.c
+++ b/src/eom-window.c
@@ -4189,12 +4189,25 @@ eom_window_drag_data_received (GtkWidget *widget,
         GSList *file_list;
         EomWindow *window;
 	GdkAtom target;
+	GtkWidget *src;
 
 	target = gtk_selection_data_get_target (selection_data);
 
         if (!gtk_targets_include_uri (&target, 1))
                 return;
 
+	/* if the request is from another process this will return NULL */
+	src = gtk_drag_get_source_widget (context);
+
+	/* if the drag request originates from the current eog instance, ignore
+	   the request if the source window is the same as the dest window */
+	if (src &&
+	    gtk_widget_get_toplevel (src) == gtk_widget_get_toplevel (widget))
+	{
+		gdk_drag_status (context, 0, time);
+		return;
+	}
+
         if (gdk_drag_context_get_suggested_action (context) == GDK_ACTION_COPY) {
                 window = EOM_WINDOW (widget);