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/* nautilus-dnd.h - Common Drag & drop handling code shared by the icon container
and the list view.
Copyright (C) 2000 Eazel, Inc.
The Gnome Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The Gnome 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the Gnome Library; see the file COPYING.LIB. If not,
see <http://www.gnu.org/licenses/>.
Authors: Pavel Cisler <pavel@eazel.com>,
Ettore Perazzoli <ettore@gnu.org>
*/
#ifndef NAUTILUS_DND_H
#define NAUTILUS_DND_H
#include <gtk/gtk.h>
#include "nautilus-file.h"
/* Drag & Drop target names. */
#define NAUTILUS_ICON_DND_GNOME_ICON_LIST_TYPE "x-special/gnome-icon-list"
#define NAUTILUS_ICON_DND_URI_LIST_TYPE "text/uri-list"
#define NAUTILUS_ICON_DND_NETSCAPE_URL_TYPE "_NETSCAPE_URL"
#define NAUTILUS_ICON_DND_BGIMAGE_TYPE "property/bgimage"
#define NAUTILUS_ICON_DND_ROOTWINDOW_DROP_TYPE "application/x-rootwindow-drop"
#define NAUTILUS_ICON_DND_XDNDDIRECTSAVE_TYPE "XdndDirectSave0" /* XDS Protocol Type */
#define NAUTILUS_ICON_DND_RAW_TYPE "application/octet-stream"
/* Item of the drag selection list */
typedef struct {
NautilusFile *file;
char *uri;
gboolean got_icon_position;
int icon_x, icon_y;
int icon_width, icon_height;
} NautilusDragSelectionItem;
/* Standard Drag & Drop types. */
typedef enum {
NAUTILUS_ICON_DND_GNOME_ICON_LIST,
NAUTILUS_ICON_DND_URI_LIST,
NAUTILUS_ICON_DND_NETSCAPE_URL,
NAUTILUS_ICON_DND_TEXT,
NAUTILUS_ICON_DND_XDNDDIRECTSAVE,
NAUTILUS_ICON_DND_RAW,
NAUTILUS_ICON_DND_ROOTWINDOW_DROP
} NautilusIconDndTargetType;
/* drag&drop-related information. */
typedef struct {
GtkTargetList *target_list;
/* Stuff saved at "receive data" time needed later in the drag. */
gboolean got_drop_data_type;
NautilusIconDndTargetType data_type;
GtkSelectionData *selection_data;
char *direct_save_uri;
/* Start of the drag, in window coordinates. */
int start_x, start_y;
/* List of NautilusDragSelectionItems, representing items being dragged, or NULL
* if data about them has not been received from the source yet.
*/
GList *selection_list;
/* cache of selected URIs, representing items being dragged */
GList *selection_cache;
/* File selection list information request handler, for the call for
* information (mostly the file system info, in order to know if we want
* co copy or move the files) about the files being dragged, that can
* come from another nautilus process, like the desktop. */
NautilusFileListHandle *file_list_info_handler;
/* has the drop occured ? */
gboolean drop_occured;
/* whether or not need to clean up the previous dnd data */
gboolean need_to_destroy;
/* autoscrolling during dragging */
int auto_scroll_timeout_id;
gboolean waiting_to_autoscroll;
gint64 start_auto_scroll_in;
/* source context actions. Used for peek the actions using a GdkDragContext
* source at drag-begin time when they are not available yet (they become
* available at drag-motion time) */
guint32 source_actions;
} NautilusDragInfo;
typedef void (* NautilusDragEachSelectedItemDataGet) (const char *url,
int x, int y, int w, int h,
gpointer data);
typedef void (* NautilusDragEachSelectedItemIterator) (NautilusDragEachSelectedItemDataGet iteratee,
gpointer iterator_context,
gpointer data);
void nautilus_drag_init (NautilusDragInfo *drag_info,
const GtkTargetEntry *drag_types,
int drag_type_count,
gboolean add_text_targets);
void nautilus_drag_finalize (NautilusDragInfo *drag_info);
NautilusDragSelectionItem *nautilus_drag_selection_item_new (void);
void nautilus_drag_destroy_selection_list (GList *selection_list);
GList *nautilus_drag_build_selection_list (GtkSelectionData *data);
GList * nautilus_drag_uri_list_from_selection_list (const GList *selection_list);
GList * nautilus_drag_uri_list_from_array (const char **uris);
gboolean nautilus_drag_items_local (const char *target_uri,
const GList *selection_list);
gboolean nautilus_drag_uris_local (const char *target_uri,
const GList *source_uri_list);
gboolean nautilus_drag_items_on_desktop (const GList *selection_list);
void nautilus_drag_default_drop_action_for_icons (GdkDragContext *context,
const char *target_uri,
const GList *items,
guint32 source_actions,
int *action);
GdkDragAction nautilus_drag_default_drop_action_for_netscape_url (GdkDragContext *context);
GdkDragAction nautilus_drag_default_drop_action_for_uri_list (GdkDragContext *context,
const char *target_uri_string);
GList *nautilus_drag_create_selection_cache (gpointer container_context,
NautilusDragEachSelectedItemIterator each_selected_item_iterator);
gboolean nautilus_drag_drag_data_get_from_cache (GList *cache,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint32 time);
int nautilus_drag_modifier_based_action (int default_action,
int non_default_action);
GdkDragAction nautilus_drag_drop_action_ask (GtkWidget *widget,
GdkDragAction possible_actions);
gboolean nautilus_drag_autoscroll_in_scroll_region (GtkWidget *widget);
void nautilus_drag_autoscroll_calculate_delta (GtkWidget *widget,
float *x_scroll_delta,
float *y_scroll_delta);
void nautilus_drag_autoscroll_start (NautilusDragInfo *drag_info,
GtkWidget *widget,
GSourceFunc callback,
gpointer user_data);
void nautilus_drag_autoscroll_stop (NautilusDragInfo *drag_info);
gboolean nautilus_drag_selection_includes_special_link (GList *selection_list);
NautilusDragInfo * nautilus_drag_get_source_data (GdkDragContext *context);
GList * nautilus_drag_file_list_from_selection_list (const GList *selection_list);
#endif
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