/* -*- 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. Authors: Pavel Cisler <pavel@eazel.com>, */ #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 <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_engrampa_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); g_list_free_full (keywords, g_free); }