#ifndef __GDK_DND_H__
#define __GDK_DND_H__

#include <gdk/gdktypes.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

typedef struct _GdkDragContext        GdkDragContext;

typedef enum {
  GDK_ACTION_DEFAULT = 1 << 0,
  GDK_ACTION_COPY    = 1 << 1,
  GDK_ACTION_MOVE    = 1 << 2,
  GDK_ACTION_LINK    = 1 << 3,
  GDK_ACTION_PRIVATE = 1 << 4,
  GDK_ACTION_ASK     = 1 << 5
} GdkDragAction;

typedef enum {
  GDK_DRAG_PROTO_MOTIF,
  GDK_DRAG_PROTO_XDND,
  GDK_DRAG_PROTO_ROOTWIN,	  /* A root window with nobody claiming
				   * drags */
  GDK_DRAG_PROTO_NONE,		  /* Not a valid drag window */
  GDK_DRAG_PROTO_WIN32_DROPFILES, /* The simple WM_DROPFILES dnd */
  GDK_DRAG_PROTO_OLE2,		  /* The complex OLE2 dnd (not implemented) */
} GdkDragProtocol;

/* Structure that holds information about a drag in progress.
 * this is used on both source and destination sides.
 */
struct _GdkDragContext {
  GdkDragProtocol protocol;
  
  gboolean is_source;
  
  GdkWindow *source_window;
  GdkWindow *dest_window;

  GList *targets;
  GdkDragAction actions;
  GdkDragAction suggested_action;
  GdkDragAction action; 

  guint32 start_time;
};

/* Drag and Drop */

GdkDragContext * gdk_drag_context_new        (void);
void             gdk_drag_context_ref        (GdkDragContext *context);
void             gdk_drag_context_unref      (GdkDragContext *context);

/* Destination side */

void             gdk_drag_status        (GdkDragContext   *context,
				         GdkDragAction     action,
					 guint32           time);
void             gdk_drop_reply         (GdkDragContext   *context,
					 gboolean          ok,
					 guint32           time);
void             gdk_drop_finish        (GdkDragContext   *context,
					 gboolean          success,
					 guint32           time);
GdkAtom          gdk_drag_get_selection (GdkDragContext   *context);

/* Source side */

GdkDragContext * gdk_drag_begin      (GdkWindow      *window,
				      GList          *targets);
guint32         gdk_drag_get_protocol (guint32          xid,
				       GdkDragProtocol *protocol);
void             gdk_drag_find_window (GdkDragContext   *context,
				       GdkWindow       *drag_window,
			 	       gint             x_root,
				       gint             y_root,
				       GdkWindow      **dest_window,
				       GdkDragProtocol *protocol);
gboolean        gdk_drag_motion      (GdkDragContext *context,
				      GdkWindow      *dest_window,
				      GdkDragProtocol protocol,
				      gint            x_root, 
				      gint            y_root,
				      GdkDragAction   suggested_action,
				      GdkDragAction   possible_actions,
				      guint32         time);
void            gdk_drag_drop        (GdkDragContext *context,
				      guint32         time);
void            gdk_drag_abort       (GdkDragContext *context,
				      guint32         time);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif __GDK_DND_H__
