/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ /* 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Authors: Pavel Cisler , Ettore Perazzoli */ #ifndef NAUTILUS_DND_H #define NAUTILUS_DND_H #include /* 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_COLOR_TYPE "application/x-color" #define NAUTILUS_ICON_DND_BGIMAGE_TYPE "property/bgimage" #define NAUTILUS_ICON_DND_KEYWORD_TYPE "property/keyword" #define NAUTILUS_ICON_DND_RESET_BACKGROUND_TYPE "x-special/gnome-reset-background" #define NAUTILUS_ICON_DND_ROOTWINDOW_DROP_TYPE "application/x-rootwindow-drop" #define NAUTILUS_ICON_DND_XDNDDIRECTSAVE_TYPE "XdndDirectSave0" /* XDS Protocol Type */ /* Item of the drag selection list */ typedef struct { 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_COLOR, NAUTILUS_ICON_DND_BGIMAGE, NAUTILUS_ICON_DND_KEYWORD, NAUTILUS_ICON_DND_TEXT, NAUTILUS_ICON_DND_RESET_BACKGROUND, NAUTILUS_ICON_DND_XDNDDIRECTSAVE, NAUTILUS_ICON_DND_ROOTWINDOW_DROP } NautilusIconDndTargetType; typedef enum { NAUTILUS_DND_ACTION_FIRST = GDK_ACTION_ASK << 1, NAUTILUS_DND_ACTION_SET_AS_BACKGROUND = NAUTILUS_DND_ACTION_FIRST << 0, NAUTILUS_DND_ACTION_SET_AS_FOLDER_BACKGROUND = NAUTILUS_DND_ACTION_FIRST << 1, NAUTILUS_DND_ACTION_SET_AS_GLOBAL_BACKGROUND = NAUTILUS_DND_ACTION_FIRST << 2 } NautilusDndAction; /* 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; /* 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; } 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); 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_in_trash (const GList *selection_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, 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); gboolean nautilus_drag_drag_data_get (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data, guint info, guint32 time, gpointer container_context, NautilusDragEachSelectedItemIterator each_selected_item_iterator); int nautilus_drag_modifier_based_action (int default_action, int non_default_action); GdkDragAction nautilus_drag_drop_action_ask (GtkWidget *widget, GdkDragAction possible_actions); GdkDragAction nautilus_drag_drop_background_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, GtkFunction callback, gpointer user_data); void nautilus_drag_autoscroll_stop (NautilusDragInfo *drag_info); gboolean nautilus_drag_selection_includes_special_link (GList *selection_list); #endif