diff options
Diffstat (limited to 'libcaja-private/caja-file-dnd.c')
| -rw-r--r-- | libcaja-private/caja-file-dnd.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/libcaja-private/caja-file-dnd.c b/libcaja-private/caja-file-dnd.c new file mode 100644 index 00000000..06a61daf --- /dev/null +++ b/libcaja-private/caja-file-dnd.c @@ -0,0 +1,186 @@ +/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ + +/* caja-file-drag.c - Drag & drop handling code that operated on + CajaFile objects. + + 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + + Authors: Pavel Cisler <[email protected]>, +*/ + +#include <config.h> +#include "caja-file-dnd.h" +#include "caja-desktop-icon-file.h" + +#include "caja-dnd.h" +#include "caja-directory.h" +#include "caja-file-utilities.h" +#include <eel/eel-glib-extensions.h> +#include <string.h> + +static gboolean +caja_drag_can_accept_files (CajaFile *drop_target_item) +{ + CajaDirectory *directory; + + if (caja_file_is_directory (drop_target_item)) + { + gboolean res; + + /* target is a directory, accept if editable */ + directory = caja_directory_get_for_file (drop_target_item); + res = caja_directory_is_editable (directory); + caja_directory_unref (directory); + return res; + } + + if (CAJA_IS_DESKTOP_ICON_FILE (drop_target_item)) + { + return TRUE; + } + + /* All Caja links are assumed to be links to directories. + * Therefore, they all can accept drags, like all other + * directories to. As with other directories, there can be + * errors when the actual copy is attempted due to + * permissions. + */ + if (caja_file_is_caja_link (drop_target_item)) + { + return TRUE; + } + + if (caja_is_file_roller_installed () && + caja_file_is_archive (drop_target_item)) + { + return TRUE; + } + + return FALSE; +} + +gboolean +caja_drag_can_accept_item (CajaFile *drop_target_item, + const char *item_uri) +{ + if (caja_file_matches_uri (drop_target_item, item_uri)) + { + /* can't accept itself */ + return FALSE; + } + + return caja_drag_can_accept_files (drop_target_item); +} + +gboolean +caja_drag_can_accept_items (CajaFile *drop_target_item, + const GList *items) +{ + int max; + + if (drop_target_item == NULL) + return FALSE; + + g_assert (CAJA_IS_FILE (drop_target_item)); + + /* Iterate through selection checking if item will get accepted by the + * drop target. If more than 100 items selected, return an over-optimisic + * result + */ + for (max = 100; items != NULL && max >= 0; items = items->next, max--) + { + if (!caja_drag_can_accept_item (drop_target_item, + ((CajaDragSelectionItem *)items->data)->uri)) + { + return FALSE; + } + } + + return TRUE; +} + +gboolean +caja_drag_can_accept_info (CajaFile *drop_target_item, + CajaIconDndTargetType drag_type, + const GList *items) +{ + switch (drag_type) + { + case CAJA_ICON_DND_MATE_ICON_LIST: + return caja_drag_can_accept_items (drop_target_item, items); + + case CAJA_ICON_DND_URI_LIST: + case CAJA_ICON_DND_NETSCAPE_URL: + case CAJA_ICON_DND_TEXT: + return caja_drag_can_accept_files (drop_target_item); + + case CAJA_ICON_DND_XDNDDIRECTSAVE: + case CAJA_ICON_DND_RAW: + return caja_drag_can_accept_files (drop_target_item); /* Check if we can accept files at this location */ + + case CAJA_ICON_DND_KEYWORD: + return TRUE; + + case CAJA_ICON_DND_ROOTWINDOW_DROP: + return FALSE; + + /* TODO return TRUE for folders as soon as drop handling is implemented */ + case CAJA_ICON_DND_COLOR: + case CAJA_ICON_DND_BGIMAGE: + case CAJA_ICON_DND_RESET_BACKGROUND: + return FALSE; + + default: + g_assert_not_reached (); + return FALSE; + } +} + +void +caja_drag_file_receive_dropped_keyword (CajaFile *file, + const char *keyword) +{ + GList *keywords, *word; + + g_return_if_fail (CAJA_IS_FILE (file)); + g_return_if_fail (keyword != NULL); + + /* special case the erase emblem */ + if (strcmp (keyword, CAJA_FILE_DND_ERASE_KEYWORD) == 0) + { + keywords = NULL; + } + else + { + keywords = caja_file_get_keywords (file); + word = g_list_find_custom (keywords, keyword, (GCompareFunc) strcmp); + if (word == NULL) + { + keywords = g_list_prepend (keywords, g_strdup (keyword)); + } + else + { + keywords = g_list_remove_link (keywords, word); + g_free (word->data); + g_list_free_1 (word); + } + } + + caja_file_set_keywords (file, keywords); + eel_g_list_free_deep (keywords); +} |