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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* caja-dnd.h - Common Drag & drop handling code shared by the icon container
and the list view.
Copyright (C) 2000 Eazel, Inc.
The Mate 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 Mate 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 Mate Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
Boston, MA 02110-1301, USA.
Authors: Pavel Cisler <pavel@eazel.com>,
Ettore Perazzoli <ettore@gnu.org>
*/
#ifndef CAJA_DND_H
#define CAJA_DND_H
#include <gtk/gtk.h>
#include <libcaja-private/caja-window-slot-info.h>
/* Drag & Drop target names. */
#define CAJA_ICON_DND_MATE_ICON_LIST_TYPE "x-special/mate-icon-list"
#define CAJA_ICON_DND_URI_LIST_TYPE "text/uri-list"
#define CAJA_ICON_DND_NETSCAPE_URL_TYPE "_NETSCAPE_URL"
#define CAJA_ICON_DND_COLOR_TYPE "application/x-color"
#define CAJA_ICON_DND_BGIMAGE_TYPE "property/bgimage"
#define CAJA_ICON_DND_KEYWORD_TYPE "property/keyword"
#define CAJA_ICON_DND_RESET_BACKGROUND_TYPE "x-special/mate-reset-background"
#define CAJA_ICON_DND_ROOTWINDOW_DROP_TYPE "application/x-rootwindow-drop"
#define CAJA_ICON_DND_XDNDDIRECTSAVE_TYPE "XdndDirectSave0" /* XDS Protocol Type */
#define CAJA_ICON_DND_RAW_TYPE "application/octet-stream"
/* Item of the drag selection list */
typedef struct
{
char *uri;
gboolean got_icon_position;
int icon_x, icon_y;
int icon_width, icon_height;
} CajaDragSelectionItem;
/* Standard Drag & Drop types. */
typedef enum
{
CAJA_ICON_DND_MATE_ICON_LIST,
CAJA_ICON_DND_URI_LIST,
CAJA_ICON_DND_NETSCAPE_URL,
CAJA_ICON_DND_COLOR,
CAJA_ICON_DND_BGIMAGE,
CAJA_ICON_DND_KEYWORD,
CAJA_ICON_DND_TEXT,
CAJA_ICON_DND_RESET_BACKGROUND,
CAJA_ICON_DND_XDNDDIRECTSAVE,
CAJA_ICON_DND_RAW,
CAJA_ICON_DND_ROOTWINDOW_DROP
} CajaIconDndTargetType;
typedef enum
{
CAJA_DND_ACTION_FIRST = GDK_ACTION_ASK << 1,
CAJA_DND_ACTION_SET_AS_BACKGROUND = CAJA_DND_ACTION_FIRST << 0,
CAJA_DND_ACTION_SET_AS_FOLDER_BACKGROUND = CAJA_DND_ACTION_FIRST << 1,
CAJA_DND_ACTION_SET_AS_GLOBAL_BACKGROUND = CAJA_DND_ACTION_FIRST << 2
} CajaDndAction;
/* 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;
CajaIconDndTargetType data_type;
GtkSelectionData *selection_data;
char *direct_save_uri;
/* Start of the drag, in window coordinates. */
int start_x, start_y;
/* List of CajaDragSelectionItems, representing items being dragged, or NULL
* if data about them has not been received from the source yet.
*/
GList *selection_list;
/* 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;
} CajaDragInfo;
typedef struct
{
/* NB: the following elements are managed by us */
gboolean have_data;
gboolean have_valid_data;
gboolean drop_occured;
unsigned int info;
union
{
GList *selection_list;
GList *uri_list;
char *netscape_url;
} data;
/* NB: the following elements are managed by the caller of
* caja_drag_slot_proxy_init() */
/* a fixed location, or NULL to use slot's location */
GFile *target_location;
/* a fixed slot, or NULL to use the window's active slot */
CajaWindowSlotInfo *target_slot;
} CajaDragSlotProxyInfo;
typedef void (* CajaDragEachSelectedItemDataGet) (const char *url,
int x, int y, int w, int h,
gpointer data);
typedef void (* CajaDragEachSelectedItemIterator) (CajaDragEachSelectedItemDataGet iteratee,
gpointer iterator_context,
gpointer data);
void caja_drag_init (CajaDragInfo *drag_info,
const GtkTargetEntry *drag_types,
int drag_type_count,
gboolean add_text_targets);
void caja_drag_finalize (CajaDragInfo *drag_info);
CajaDragSelectionItem *caja_drag_selection_item_new (void);
void caja_drag_destroy_selection_list (GList *selection_list);
GList *caja_drag_build_selection_list (GtkSelectionData *data);
GList * caja_drag_uri_list_from_selection_list (const GList *selection_list);
GList * caja_drag_uri_list_from_array (const char **uris);
gboolean caja_drag_items_local (const char *target_uri,
const GList *selection_list);
gboolean caja_drag_uris_local (const char *target_uri,
const GList *source_uri_list);
gboolean caja_drag_items_on_desktop (const GList *selection_list);
void caja_drag_default_drop_action_for_icons (GdkDragContext *context,
const char *target_uri,
const GList *items,
int *action);
GdkDragAction caja_drag_default_drop_action_for_netscape_url (GdkDragContext *context);
GdkDragAction caja_drag_default_drop_action_for_uri_list (GdkDragContext *context,
const char *target_uri_string);
gboolean caja_drag_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint32 time,
gpointer container_context,
CajaDragEachSelectedItemIterator each_selected_item_iterator);
int caja_drag_modifier_based_action (int default_action,
int non_default_action);
GdkDragAction caja_drag_drop_action_ask (GtkWidget *widget,
GdkDragAction possible_actions);
GdkDragAction caja_drag_drop_background_ask (GtkWidget *widget,
GdkDragAction possible_actions);
gboolean caja_drag_autoscroll_in_scroll_region (GtkWidget *widget);
void caja_drag_autoscroll_calculate_delta (GtkWidget *widget,
float *x_scroll_delta,
float *y_scroll_delta);
void caja_drag_autoscroll_start (CajaDragInfo *drag_info,
GtkWidget *widget,
GSourceFunc callback,
gpointer user_data);
void caja_drag_autoscroll_stop (CajaDragInfo *drag_info);
gboolean caja_drag_selection_includes_special_link (GList *selection_list);
void caja_drag_slot_proxy_init (GtkWidget *widget,
CajaDragSlotProxyInfo *drag_info);
#endif
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