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Diffstat (limited to 'src/nautilus-dnd.h')
| -rw-r--r-- | src/nautilus-dnd.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/nautilus-dnd.h b/src/nautilus-dnd.h new file mode 100644 index 000000000..35872ae9b --- /dev/null +++ b/src/nautilus-dnd.h @@ -0,0 +1,147 @@ + +/* 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" + +/* 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 |