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aad3135e4c
We should conform to a minimal set of reasons for the gtk side to emit a better GtkDragResult than GTK_DRAG_RESULT_ERROR. This fixes the notebook tab DnD feature, where we rely on GTK_DRAG_RESULT_NO_TARGET. In the wayland side, unfortunately we can't honor either NO_TARGET nor USER_CANCELLED, we don't know of the latter, so we could return false positives on the former. https://bugzilla.gnome.org/show_bug.cgi?id=761954
216 lines
8.5 KiB
C
216 lines
8.5 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __GDK_DND_H__
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#define __GDK_DND_H__
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#if !defined (__GDK_H_INSIDE__) && !defined (GDK_COMPILATION)
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#error "Only <gdk/gdk.h> can be included directly."
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#endif
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#include <gdk/gdktypes.h>
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#include <gdk/gdkdevice.h>
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#include <gdk/gdkevents.h>
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G_BEGIN_DECLS
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#define GDK_TYPE_DRAG_CONTEXT (gdk_drag_context_get_type ())
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#define GDK_DRAG_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_DRAG_CONTEXT, GdkDragContext))
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#define GDK_IS_DRAG_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_DRAG_CONTEXT))
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/**
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* GdkDragAction:
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* @GDK_ACTION_DEFAULT: Means nothing, and should not be used.
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* @GDK_ACTION_COPY: Copy the data.
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* @GDK_ACTION_MOVE: Move the data, i.e. first copy it, then delete
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* it from the source using the DELETE target of the X selection protocol.
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* @GDK_ACTION_LINK: Add a link to the data. Note that this is only
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* useful if source and destination agree on what it means.
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* @GDK_ACTION_PRIVATE: Special action which tells the source that the
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* destination will do something that the source doesn’t understand.
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* @GDK_ACTION_ASK: Ask the user what to do with the data.
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*
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* Used in #GdkDragContext to indicate what the destination
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* should do with the dropped data.
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*/
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typedef enum
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{
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GDK_ACTION_DEFAULT = 1 << 0,
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GDK_ACTION_COPY = 1 << 1,
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GDK_ACTION_MOVE = 1 << 2,
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GDK_ACTION_LINK = 1 << 3,
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GDK_ACTION_PRIVATE = 1 << 4,
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GDK_ACTION_ASK = 1 << 5
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} GdkDragAction;
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/**
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* GdkDragCancelReason:
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* @GDK_DRAG_CANCEL_NO_TARGET: There is no suitable drop target.
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* @GDK_DRAG_CANCEL_USER_CANCELLED: Drag cancelled by the user
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* @GDK_DRAG_CANCEL_ERROR: Unspecified error.
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*
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* Used in #GdkDragContext to the reason of a cancelled DND operation.
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*
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* Since: 3.20
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*/
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typedef enum {
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GDK_DRAG_CANCEL_NO_TARGET,
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GDK_DRAG_CANCEL_USER_CANCELLED,
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GDK_DRAG_CANCEL_ERROR
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} GdkDragCancelReason;
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/**
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* GdkDragProtocol:
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* @GDK_DRAG_PROTO_NONE: no protocol.
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* @GDK_DRAG_PROTO_MOTIF: The Motif DND protocol. No longer supported
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* @GDK_DRAG_PROTO_XDND: The Xdnd protocol.
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* @GDK_DRAG_PROTO_ROOTWIN: An extension to the Xdnd protocol for
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* unclaimed root window drops.
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* @GDK_DRAG_PROTO_WIN32_DROPFILES: The simple WM_DROPFILES protocol.
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* @GDK_DRAG_PROTO_OLE2: The complex OLE2 DND protocol (not implemented).
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* @GDK_DRAG_PROTO_LOCAL: Intra-application DND.
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* @GDK_DRAG_PROTO_WAYLAND: Wayland DND protocol.
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*
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* Used in #GdkDragContext to indicate the protocol according to
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* which DND is done.
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*/
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typedef enum
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{
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GDK_DRAG_PROTO_NONE = 0,
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GDK_DRAG_PROTO_MOTIF,
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GDK_DRAG_PROTO_XDND,
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GDK_DRAG_PROTO_ROOTWIN,
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GDK_DRAG_PROTO_WIN32_DROPFILES,
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GDK_DRAG_PROTO_OLE2,
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GDK_DRAG_PROTO_LOCAL,
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GDK_DRAG_PROTO_WAYLAND
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} GdkDragProtocol;
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GDK_AVAILABLE_IN_ALL
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GType gdk_drag_context_get_type (void) G_GNUC_CONST;
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GDK_AVAILABLE_IN_ALL
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void gdk_drag_context_set_device (GdkDragContext *context,
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GdkDevice *device);
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GDK_AVAILABLE_IN_ALL
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GdkDevice * gdk_drag_context_get_device (GdkDragContext *context);
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GDK_AVAILABLE_IN_ALL
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GList *gdk_drag_context_list_targets (GdkDragContext *context);
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GDK_AVAILABLE_IN_ALL
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GdkDragAction gdk_drag_context_get_actions (GdkDragContext *context);
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GDK_AVAILABLE_IN_ALL
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GdkDragAction gdk_drag_context_get_suggested_action (GdkDragContext *context);
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GDK_AVAILABLE_IN_ALL
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GdkDragAction gdk_drag_context_get_selected_action (GdkDragContext *context);
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GDK_AVAILABLE_IN_ALL
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GdkWindow *gdk_drag_context_get_source_window (GdkDragContext *context);
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GDK_AVAILABLE_IN_ALL
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GdkWindow *gdk_drag_context_get_dest_window (GdkDragContext *context);
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GDK_AVAILABLE_IN_ALL
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GdkDragProtocol gdk_drag_context_get_protocol (GdkDragContext *context);
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/* Destination side */
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GDK_AVAILABLE_IN_ALL
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void gdk_drag_status (GdkDragContext *context,
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GdkDragAction action,
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guint32 time_);
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GDK_AVAILABLE_IN_ALL
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void gdk_drop_reply (GdkDragContext *context,
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gboolean accepted,
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guint32 time_);
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GDK_AVAILABLE_IN_ALL
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void gdk_drop_finish (GdkDragContext *context,
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gboolean success,
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guint32 time_);
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GDK_AVAILABLE_IN_ALL
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GdkAtom gdk_drag_get_selection (GdkDragContext *context);
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/* Source side */
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GDK_AVAILABLE_IN_ALL
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GdkDragContext * gdk_drag_begin (GdkWindow *window,
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GList *targets);
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GDK_AVAILABLE_IN_ALL
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GdkDragContext * gdk_drag_begin_for_device (GdkWindow *window,
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GdkDevice *device,
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GList *targets);
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GDK_AVAILABLE_IN_3_20
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GdkDragContext * gdk_drag_begin_from_point (GdkWindow *window,
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GdkDevice *device,
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GList *targets,
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gint x_root,
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gint y_root);
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GDK_AVAILABLE_IN_ALL
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void gdk_drag_find_window_for_screen (GdkDragContext *context,
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GdkWindow *drag_window,
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GdkScreen *screen,
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gint x_root,
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gint y_root,
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GdkWindow **dest_window,
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GdkDragProtocol *protocol);
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GDK_AVAILABLE_IN_ALL
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gboolean gdk_drag_motion (GdkDragContext *context,
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GdkWindow *dest_window,
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GdkDragProtocol protocol,
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gint x_root,
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gint y_root,
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GdkDragAction suggested_action,
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GdkDragAction possible_actions,
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guint32 time_);
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GDK_AVAILABLE_IN_ALL
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void gdk_drag_drop (GdkDragContext *context,
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guint32 time_);
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GDK_AVAILABLE_IN_ALL
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void gdk_drag_abort (GdkDragContext *context,
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guint32 time_);
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GDK_AVAILABLE_IN_ALL
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gboolean gdk_drag_drop_succeeded (GdkDragContext *context);
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GDK_AVAILABLE_IN_3_20
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void gdk_drag_drop_done (GdkDragContext *context,
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gboolean success);
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GDK_AVAILABLE_IN_3_20
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GdkWindow *gdk_drag_context_get_drag_window (GdkDragContext *context);
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GDK_AVAILABLE_IN_3_20
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void gdk_drag_context_set_hotspot (GdkDragContext *context,
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gint hot_x,
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gint hot_y);
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GDK_AVAILABLE_IN_3_20
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gboolean gdk_drag_context_manage_dnd (GdkDragContext *context,
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GdkWindow *ipc_window,
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GdkDragAction actions);
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G_END_DECLS
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#endif /* __GDK_DND_H__ */
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