summaryrefslogtreecommitdiff
path: root/gdk/gdkdnd.h
blob: 0cc1d33131872dbfb8bb5cee4556ba1286da7ab2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
/* GDK - The GIMP Drawing Kit
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
 * file for a list of people on the GTK+ Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
 */

#ifndef __GDK_DND_H__
#define __GDK_DND_H__

#if !defined (__GDK_H_INSIDE__) && !defined (GDK_COMPILATION)
#error "Only <gdk/gdk.h> can be included directly."
#endif

#include <gdk/gdktypes.h>
#include <gdk/gdkdevice.h>
#include <gdk/gdkevents.h>

G_BEGIN_DECLS

#define GDK_TYPE_DRAG_CONTEXT              (gdk_drag_context_get_type ())
#define GDK_DRAG_CONTEXT(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_DRAG_CONTEXT, GdkDragContext))
#define GDK_IS_DRAG_CONTEXT(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_DRAG_CONTEXT))

/**
 * GdkDragAction:
 * @GDK_ACTION_DEFAULT: Means nothing, and should not be used.
 * @GDK_ACTION_COPY: Copy the data.
 * @GDK_ACTION_MOVE: Move the data, i.e. first copy it, then delete
 *  it from the source using the DELETE target of the X selection protocol.
 * @GDK_ACTION_LINK: Add a link to the data. Note that this is only
 *  useful if source and destination agree on what it means.
 * @GDK_ACTION_PRIVATE: Special action which tells the source that the
 *  destination will do something that the source doesn’t understand.
 * @GDK_ACTION_ASK: Ask the user what to do with the data.
 *
 * Used in #GdkDragContext to indicate what the destination
 * should do with the dropped data.
 */
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;

/**
 * GdkDragCancelReason:
 * @GDK_DRAG_CANCEL_NO_TARGET: There is no suitable drop target.
 * @GDK_DRAG_CANCEL_USER_CANCELLED: Drag cancelled by the user
 * @GDK_DRAG_CANCEL_ERROR: Unspecified error.
 *
 * Used in #GdkDragContext to the reason of a cancelled DND operation.
 *
 * Since: 3.20
 */
typedef enum {
  GDK_DRAG_CANCEL_NO_TARGET,
  GDK_DRAG_CANCEL_USER_CANCELLED,
  GDK_DRAG_CANCEL_ERROR
} GdkDragCancelReason;

GDK_AVAILABLE_IN_ALL
GType            gdk_drag_context_get_type             (void) G_GNUC_CONST;

GDK_AVAILABLE_IN_ALL
GdkDisplay *     gdk_drag_context_get_display          (GdkDragContext *context);
GDK_AVAILABLE_IN_ALL
GdkDevice *      gdk_drag_context_get_device           (GdkDragContext *context);

GDK_AVAILABLE_IN_ALL
GdkContentFormats *gdk_drag_context_get_formats        (GdkDragContext *context);
GDK_AVAILABLE_IN_ALL
GdkDragAction    gdk_drag_context_get_actions          (GdkDragContext *context);
GDK_AVAILABLE_IN_ALL
GdkDragAction    gdk_drag_context_get_suggested_action (GdkDragContext *context);
GDK_AVAILABLE_IN_ALL
GdkDragAction    gdk_drag_context_get_selected_action  (GdkDragContext *context);

GDK_AVAILABLE_IN_ALL
GdkSurface       *gdk_drag_context_get_source_surface    (GdkDragContext *context);
GDK_AVAILABLE_IN_ALL
GdkSurface       *gdk_drag_context_get_dest_surface      (GdkDragContext *context);

/* Destination side */
GDK_AVAILABLE_IN_ALL
void             gdk_drag_status        (GdkDragContext   *context,
                                         GdkDragAction     action,
                                         guint32           time_);
GDK_AVAILABLE_IN_ALL
void             gdk_drop_reply         (GdkDragContext   *context,
                                         gboolean          accepted,
                                         guint32           time_);
GDK_AVAILABLE_IN_ALL
void             gdk_drop_finish        (GdkDragContext   *context,
                                         gboolean          success,
                                         guint32           time_);

GDK_AVAILABLE_IN_ALL
void                    gdk_drop_read_async             (GdkDragContext        *context,
                                                         const char           **mime_types,
                                                         int                    io_priority,
                                                         GCancellable          *cancellable,
                                                         GAsyncReadyCallback    callback,
                                                         gpointer               user_data);
GDK_AVAILABLE_IN_ALL
GInputStream *          gdk_drop_read_finish            (GdkDragContext        *context,
                                                         const char           **out_mime_type,
                                                         GAsyncResult          *result,
                                                         GError               **error);

/* Source side */

GDK_AVAILABLE_IN_ALL
GdkDragContext *        gdk_drag_begin                  (GdkSurface              *surface,
                                                         GdkDevice              *device,
                                                         GdkContentProvider     *content,
                                                         GdkDragAction           actions,
                                                         gint                    dx,
                                                         gint                    dy);

GDK_AVAILABLE_IN_ALL
gboolean        gdk_drag_drop_succeeded (GdkDragContext *context);

GDK_AVAILABLE_IN_ALL
void            gdk_drag_drop_done   (GdkDragContext *context,
                                      gboolean        success);

GDK_AVAILABLE_IN_ALL
GdkSurface      *gdk_drag_context_get_drag_surface (GdkDragContext *context);

GDK_AVAILABLE_IN_ALL
void            gdk_drag_context_set_hotspot (GdkDragContext *context,
                                              gint            hot_x,
                                              gint            hot_y);

G_END_DECLS

#endif /* __GDK_DND_H__ */