[gtk+/wip/matthiasc/no-unmanaged-dnd] Stop handling source-side dnd events

[Matthias Clasen <matthiasc src gnome org>]

commit 97fbb5d24eeaf53ca64206baaae79ae8abd8db2b
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Aug 23 19:14:10 2017 -0400

    Stop handling source-side dnd events
    
    These are now all consumed by the managed dnd implementation
    at the gdk level, and are only propagated as signals on
    the drag context.

 gtk/gtkdnd.c        |   14 --------------
 gtk/gtkdndprivate.h |    2 --
 gtk/gtkmain.c       |    3 ++-
 3 files changed, 2 insertions(+), 17 deletions(-)
---
diff --git a/gtk/gtkdnd.c b/gtk/gtkdnd.c
index 605bc20..13cbe71 100644
--- a/gtk/gtkdnd.c
+++ b/gtk/gtkdnd.c
@@ -1453,20 +1453,6 @@ gtk_drag_set_icon_default (GdkDragContext *context)
   gtk_drag_set_icon_name (context, "text-x-generic", -2, -2);
 }
 
-/*
- * _gtk_drag_source_handle_event:
- * @toplevel: Toplevel widget that received the event
- * @event: the event to handle
- *
- * Called from widget event handling code on Drag events
- * for drag sources.
- */
-void
-_gtk_drag_source_handle_event (GtkWidget *widget,
-                               GdkEvent  *event)
-{
-}
-
 static void
 gtk_drag_source_check_selection (GtkDragSourceInfo *info, 
                                  GdkAtom            selection,
diff --git a/gtk/gtkdndprivate.h b/gtk/gtkdndprivate.h
index 86e1c23..771d66a 100644
--- a/gtk/gtkdndprivate.h
+++ b/gtk/gtkdndprivate.h
@@ -52,8 +52,6 @@ void                    gtk_drag_set_icon_definition    (GdkDragContext
                                                          GtkImageDefinition     *def,
                                                          gint                    hot_x,
                                                          gint                    hot_y);
-void                    _gtk_drag_source_handle_event   (GtkWidget              *widget,
-                                                         GdkEvent               *event);
 void                    _gtk_drag_dest_handle_event     (GtkWidget              *toplevel,
                                                         GdkEvent               *event);
 
diff --git a/gtk/gtkmain.c b/gtk/gtkmain.c
index 4364e79..2c0a6f2 100644
--- a/gtk/gtkmain.c
+++ b/gtk/gtkmain.c
@@ -1846,7 +1846,8 @@ gtk_main_do_event (GdkEvent *event)
 
     case GDK_DRAG_STATUS:
     case GDK_DROP_FINISHED:
-      _gtk_drag_source_handle_event (event_widget, event);
+      g_warning ("These events are no longer handled by GTK+.\n"
+                 "DND needs to be managed by the backend");
       break;
     case GDK_DRAG_ENTER:
     case GDK_DRAG_LEAVE: