Move the grabs up earlier, so we don't get a big pile of uncompressed

Move the grabs up earlier, so we don't get a big pile of uncompressed

Sat Jul  5 00:49:32 2003  Owen Taylor  <otaylor@redhat.com>

        * gtk/gtkdnd.c (gtk_drag_begin): Move the grabs up
        earlier, so we don't get a big pile of uncompressed
        motion events before the grab takes effect.

        * gtk/gtkdnd.c (gtk_drag_update_icon): Call
        gdk_window_process_all_updates() so that the area
        we are dragging over gets a change to redraw.

        * gtk/gtkdnd.c (_gtk_drag_dest_handle_event): Use
        gdk_window_get_position(), not gdk_window_get_origin().

        * gdk/x11/gdkwindow-x11.[ch] (gdk_window_have_shape_ext)
        gdkdisplay-x11.h: use XShapeQueryExtension to
        avoid duplicate XQueryExtension when we actually
        use it. Remove unnecessary caching in GdkDisplayX11.