* gdesktop.c (setup_icon_dnd_dest): Always specify ACTION_MOVE,
since we want to be able to move the icons around. Connect to the
drag_motion signal.
(dnd_icon_targets): List desktop icons as a target to be able to
move them just a notch in the desktop.
(icon_drag_motion): Decide which action we can use for dropping
stuff on a desktop icon.
(setup_icon_dnd_dest): Always specify all the actions.
(icon_drag_data_received): Allow for icons to be moved just a
notch by accepting drops from icons.
* gdnd.h: Added #defines for the DnD target type names.
* gdnd.c (gdnd_init): New public function to intern the target
atom names.
(gdnd_drag_context_has_target): New public function to see if a
drag context has a certain target type.
* gdesktop.c (setup_desktop_dnd): Do not use
GTK_DEST_DEFAULT_MOVE, and connect to drag_motion.
(desktop_drag_motion): If we are dragging from a desktop icon,
indicate the action as MOVE. Otherwise, force the action to be
LINK unless the user explicitly requested ASK.
(setup_desktop_dnd): Intern the atoms for the drop targets.
436638f2bd
