/* GTK - The GIMP Toolkit * gtkfilesystem.c: Abstract file system interfaces * Copyright (C) 2003, Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include "gtkfilesystem.h" #include "gtkicontheme.h" #include struct _GtkFileInfo { GtkFileTime modification_time; gint64 size; gchar *display_name; gchar *display_key; gchar *mime_type; GtkFileIconType icon_type : 4; guint is_folder : 1; guint is_hidden : 1; }; static void gtk_file_system_base_init (gpointer g_class); static void gtk_file_folder_base_init (gpointer g_class); GQuark gtk_file_system_error_quark (void) { static GQuark quark = 0; if (quark == 0) quark = g_quark_from_static_string ("gtk-file-system-error-quark"); return quark; } /***************************************** * GtkFileInfo * *****************************************/ GType gtk_file_info_get_type (void) { static GType our_type = 0; if (our_type == 0) our_type = g_boxed_type_register_static ("GtkFileInfo", (GBoxedCopyFunc) gtk_file_info_copy, (GBoxedFreeFunc) gtk_file_info_free); return our_type; } GtkFileInfo * gtk_file_info_new (void) { GtkFileInfo *info; info = g_new0 (GtkFileInfo, 1); return info; } GtkFileInfo * gtk_file_info_copy (GtkFileInfo *info) { GtkFileInfo *new_info; g_return_val_if_fail (info != NULL, NULL); new_info = g_memdup (info, sizeof (GtkFileInfo)); if (new_info->display_name) new_info->display_name = g_strdup (new_info->display_name); if (new_info->mime_type) new_info->mime_type = g_strdup (new_info->mime_type); return new_info; } void gtk_file_info_free (GtkFileInfo *info) { g_return_if_fail (info != NULL); if (info->display_name) g_free (info->display_name); if (info->mime_type) g_free (info->mime_type); if (info->display_key) g_free (info->display_key); g_free (info); } G_CONST_RETURN gchar * gtk_file_info_get_display_name (const GtkFileInfo *info) { g_return_val_if_fail (info != NULL, NULL); return info->display_name; } /** * gtk_file_info_get_display_key: * @info: a #GtkFileInfo * * Returns results of g_utf8_collate_key() on the display name * for @info. This is useful when sorting a bunch of #GtkFileInfo * structures since the collate key will be only computed once. * * Return value: The collate key for the display name, or %NULL * if the display name hasn't been set. **/ G_CONST_RETURN gchar * gtk_file_info_get_display_key (const GtkFileInfo *info) { g_return_val_if_fail (info != NULL, NULL); if (!info->display_key && info->display_name) { /* Since info->display_key is only a cache, we cast off the const */ ((GtkFileInfo *)info)->display_key = g_utf8_collate_key (info->display_name, -1); } return info->display_key; } void gtk_file_info_set_display_name (GtkFileInfo *info, const gchar *display_name) { g_return_if_fail (info != NULL); if (info->display_name) g_free (info->display_name); if (info->display_key) { g_free (info->display_key); info->display_key = NULL; } info->display_name = g_strdup (display_name); } gboolean gtk_file_info_get_is_folder (const GtkFileInfo *info) { g_return_val_if_fail (info != NULL, FALSE); return info->is_folder; } void gtk_file_info_set_is_folder (GtkFileInfo *info, gboolean is_folder) { g_return_if_fail (info != NULL); info->is_folder = is_folder != FALSE; } gboolean gtk_file_info_get_is_hidden (const GtkFileInfo *info) { g_return_val_if_fail (info != NULL, FALSE); return info->is_hidden; } void gtk_file_info_set_is_hidden (GtkFileInfo *info, gboolean is_hidden) { g_return_if_fail (info != NULL); info->is_hidden = is_hidden != FALSE; } G_CONST_RETURN gchar * gtk_file_info_get_mime_type (const GtkFileInfo *info) { g_return_val_if_fail (info != NULL, NULL); return info->mime_type; } void gtk_file_info_set_mime_type (GtkFileInfo *info, const gchar *mime_type) { g_return_if_fail (info != NULL); if (info->mime_type) g_free (info->mime_type); info->mime_type = g_strdup (mime_type); } GtkFileTime gtk_file_info_get_modification_time (const GtkFileInfo *info) { g_return_val_if_fail (info != NULL, 0); return info->modification_time; } void gtk_file_info_set_modification_time (GtkFileInfo *info, GtkFileTime modification_time) { g_return_if_fail (info != NULL); info->modification_time = modification_time; } gint64 gtk_file_info_get_size (const GtkFileInfo *info) { g_return_val_if_fail (info != NULL, 0); return info->size; } void gtk_file_info_set_size (GtkFileInfo *info, gint64 size) { g_return_if_fail (info != NULL); g_return_if_fail (size >= 0); info->size = size; } void gtk_file_info_set_icon_type (GtkFileInfo *info, GtkFileIconType icon_type) { g_return_if_fail (info != NULL); info->icon_type = icon_type; } GtkFileIconType gtk_file_info_get_icon_type (const GtkFileInfo *info) { g_return_val_if_fail (info != NULL, GTK_FILE_ICON_REGULAR); return info->icon_type; } typedef struct _IconCacheElement IconCacheElement; struct _IconCacheElement { gint size; GdkPixbuf *pixbuf; }; static void icon_cache_element_free (IconCacheElement *element) { if (element->pixbuf) g_object_unref (element->pixbuf); g_free (element); } static void icon_theme_changed (GtkIconTheme *icon_theme) { GHashTable *cache; /* Difference from the initial creation is that we don't * reconnect the signal */ cache = g_hash_table_new_full (g_str_hash, g_str_equal, (GDestroyNotify)g_free, (GDestroyNotify)icon_cache_element_free); g_object_set_data_full (G_OBJECT (icon_theme), "gtk-file-icon-cache", cache, (GDestroyNotify)g_hash_table_destroy); } static GdkPixbuf * get_cached_icon (GtkWidget *widget, const gchar *name, gint pixel_size) { GtkIconTheme *icon_theme = gtk_icon_theme_get_for_screen (gtk_widget_get_screen (widget)); GHashTable *cache = g_object_get_data (G_OBJECT (icon_theme), "gtk-file-icon-cache"); IconCacheElement *element; if (!cache) { cache = g_hash_table_new_full (g_str_hash, g_str_equal, (GDestroyNotify)g_free, (GDestroyNotify)icon_cache_element_free); g_object_set_data_full (G_OBJECT (icon_theme), "gtk-file-icon-cache", cache, (GDestroyNotify)g_hash_table_destroy); g_signal_connect (icon_theme, "changed", G_CALLBACK (icon_theme_changed), NULL); } element = g_hash_table_lookup (cache, name); if (!element) { element = g_new0 (IconCacheElement, 1); g_hash_table_insert (cache, g_strdup (name), element); } if (element->size != pixel_size) { if (element->pixbuf) g_object_unref (element->pixbuf); element->size = pixel_size; element->pixbuf = gtk_icon_theme_load_icon (icon_theme, name, pixel_size, 0, NULL); } return element->pixbuf ? g_object_ref (element->pixbuf) : NULL; } GdkPixbuf * gtk_file_info_render_icon (const GtkFileInfo *info, GtkWidget *widget, gint pixel_size) { const gchar *separator; GdkPixbuf *pixbuf; GString *icon_name; g_return_val_if_fail (info != NULL, NULL); g_return_val_if_fail (widget != NULL, NULL); g_return_val_if_fail (pixel_size > 0, NULL); if (info->icon_type != GTK_FILE_ICON_REGULAR) { const char *name = NULL; /* Quiet gcc */ switch (info->icon_type) { case GTK_FILE_ICON_BLOCK_DEVICE: name ="gnome-fs-blockdev"; break; case GTK_FILE_ICON_BROKEN_SYMBOLIC_LINK: name = "gnome-fs-symlink"; break; case GTK_FILE_ICON_CHARACTER_DEVICE: name = "gnome-fs-chardev"; break; case GTK_FILE_ICON_DIRECTORY: name = "gnome-fs-directory"; break; case GTK_FILE_ICON_EXECUTABLE: name ="gnome-fs-executable"; break; case GTK_FILE_ICON_FIFO: name = "gnome-fs-fifo"; break; case GTK_FILE_ICON_SOCKET: name = "gnome-fs-socket"; break; case GTK_FILE_ICON_REGULAR: g_assert_not_reached (); } return get_cached_icon (widget, name, pixel_size); } if (!info->mime_type) return NULL; separator = strchr (info->mime_type, '/'); if (!separator) return NULL; icon_name = g_string_new ("gnome-mime-"); g_string_append_len (icon_name, info->mime_type, separator - info->mime_type); g_string_append_c (icon_name, '-'); g_string_append (icon_name, separator + 1); pixbuf = get_cached_icon (widget, icon_name->str, pixel_size); g_string_free (icon_name, TRUE); if (pixbuf) return pixbuf; icon_name = g_string_new ("gnome-mime-"); g_string_append_len (icon_name, info->mime_type, separator - info->mime_type); pixbuf = get_cached_icon (widget, icon_name->str, pixel_size); g_string_free (icon_name, TRUE); if (pixbuf) return pixbuf; return get_cached_icon (widget, "gnome-fs-regular", pixel_size); } /***************************************** * GtkFileSystem * *****************************************/ GType gtk_file_system_get_type (void) { static GType file_system_type = 0; if (!file_system_type) { static const GTypeInfo file_system_info = { sizeof (GtkFileSystemIface), /* class_size */ gtk_file_system_base_init, /* base_init */ NULL, /* base_finalize */ }; file_system_type = g_type_register_static (G_TYPE_INTERFACE, "GtkFileSystem", &file_system_info, 0); g_type_interface_add_prerequisite (file_system_type, G_TYPE_OBJECT); } return file_system_type; } static void gtk_file_system_base_init (gpointer g_class) { static gboolean initialized = FALSE; if (!initialized) { GType iface_type = G_TYPE_FROM_INTERFACE (g_class); g_signal_new ("roots-changed", iface_type, G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkFileSystemIface, roots_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); g_signal_new ("bookmarks-changed", iface_type, G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkFileSystemIface, bookmarks_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); initialized = TRUE; } } GSList * gtk_file_system_list_roots (GtkFileSystem *file_system) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), NULL); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->list_roots (file_system); } GtkFileInfo * gtk_file_system_get_root_info (GtkFileSystem *file_system, const GtkFilePath *path, GtkFileInfoType types, GError **error) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), NULL); g_return_val_if_fail (path != NULL, NULL); g_return_val_if_fail (error == NULL || *error == NULL, NULL); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->get_root_info (file_system, path, types, error); } GtkFileFolder * gtk_file_system_get_folder (GtkFileSystem *file_system, const GtkFilePath *path, GtkFileInfoType types, GError **error) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), NULL); g_return_val_if_fail (path != NULL, NULL); g_return_val_if_fail (error == NULL || *error == NULL, NULL); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->get_folder (file_system, path, types, error); } gboolean gtk_file_system_create_folder(GtkFileSystem *file_system, const GtkFilePath *path, GError **error) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), FALSE); g_return_val_if_fail (path != NULL, FALSE); g_return_val_if_fail (error == NULL || *error == NULL, FALSE); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->create_folder (file_system, path, error); } /** * gtk_file_system_get_parent: * @file_system: a #GtkFileSystem * @path: base path name * @parent: location to store parent path name * @error: location to store error, or %NULL * * Gets the name of the parent folder of a file. * * Return value: TRUE if the operation was successful; note that in this case @parent * can be returned as %NULL if the base @path has no parent folder (i.e. if it is * already a file system root). If the operation fails, this function returns FALSE * and sets the @error value if it is specified. **/ gboolean gtk_file_system_get_parent (GtkFileSystem *file_system, const GtkFilePath *path, GtkFilePath **parent, GError **error) { GtkFilePath *tmp_parent = NULL; gboolean result; g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), FALSE); g_return_val_if_fail (path != NULL, FALSE); g_return_val_if_fail (error == NULL || *error == NULL, FALSE); result = GTK_FILE_SYSTEM_GET_IFACE (file_system)->get_parent (file_system, path, &tmp_parent, error); g_assert (result || tmp_parent == NULL); if (parent) *parent = tmp_parent; else gtk_file_path_free (tmp_parent); return result; } GtkFilePath * gtk_file_system_make_path (GtkFileSystem *file_system, const GtkFilePath *base_path, const gchar *display_name, GError **error) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), NULL); g_return_val_if_fail (base_path != NULL, NULL); g_return_val_if_fail (display_name != NULL, NULL); g_return_val_if_fail (error == NULL || *error == NULL, FALSE); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->make_path (file_system, base_path, display_name, error); } /** * gtk_file_system_parse: * @file_system: a #GtkFileSystem * @base_path: reference folder with respect to which relative * paths should be interpreted. * @str: the string to parse * @folder: location to store folder portion of result, or %NULL * @file_part: location to store file portion of result, or %NULL * @error: location to store error, or %NULL * * Given a string entered by a user, parse it (possibly using * heuristics) into a folder path and a UTF-8 encoded * filename part. (Suitable for passing to gtk_file_system_make_path()) * * Note that the returned filename point may point to a subfolder * of the returned folder. Adding a trailing path separator is needed * to enforce the interpretation as a folder name. * * If parsing fails because the syntax of @str is not understood, * and error of type GTK_FILE_SYSTEM_ERROR_BAD_FILENAME will * be set in @error and %FALSE returned. * * If parsing fails because a path was encountered that doesn't * exist on the filesystem, then an error of type * %GTK_FILE_SYSTEM_ERROR_NONEXISTENT will be set in @error * and %FALSE returned. (This only applies to parsing relative paths, * not to interpretation of @file_part. No check is made as * to whether @file_part exists.) * * Return value: %TRUE if the parsing succeeds, otherwise, %FALSE. **/ gboolean gtk_file_system_parse (GtkFileSystem *file_system, const GtkFilePath *base_path, const gchar *str, GtkFilePath **folder, gchar **file_part, GError **error) { GtkFilePath *tmp_folder = NULL; gchar *tmp_file_part = NULL; gboolean result; g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), FALSE); g_return_val_if_fail (base_path != NULL, FALSE); g_return_val_if_fail (error == NULL || *error == NULL, FALSE); result = GTK_FILE_SYSTEM_GET_IFACE (file_system)->parse (file_system, base_path, str, &tmp_folder, &tmp_file_part, error); g_assert (result || (tmp_folder == NULL && tmp_file_part == NULL)); if (folder) *folder = tmp_folder; else gtk_file_path_free (tmp_folder); if (file_part) *file_part = tmp_file_part; else g_free (tmp_file_part); return result; } gchar * gtk_file_system_path_to_uri (GtkFileSystem *file_system, const GtkFilePath *path) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), NULL); g_return_val_if_fail (path != NULL, NULL); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->path_to_uri (file_system, path); } gchar * gtk_file_system_path_to_filename (GtkFileSystem *file_system, const GtkFilePath *path) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), NULL); g_return_val_if_fail (path != NULL, NULL); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->path_to_filename (file_system, path); } GtkFilePath * gtk_file_system_uri_to_path (GtkFileSystem *file_system, const gchar *uri) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), NULL); g_return_val_if_fail (uri != NULL, NULL); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->uri_to_path (file_system, uri); } GtkFilePath * gtk_file_system_filename_to_path (GtkFileSystem *file_system, const gchar *filename) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), NULL); g_return_val_if_fail (filename != NULL, NULL); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->filename_to_path (file_system, filename); } /** * gtk_file_system_add_bookmark: * @file_system: a #GtkFileSystem * @bookmark: path of the bookmark to add * @error: location to store error, or %NULL * * Adds a bookmark folder to the user's bookmarks list. If the operation succeeds, * the "bookmarks_changed" signal will be emitted. * * Return value: TRUE if the operation succeeds, FALSE otherwise. In the latter case, * the @error value will be set. **/ gboolean gtk_file_system_add_bookmark (GtkFileSystem *file_system, const GtkFilePath *path, GError **error) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), FALSE); g_return_val_if_fail (path != NULL, FALSE); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->add_bookmark (file_system, path, error); } /** * gtk_file_system_remove_bookmark: * @file_system: a #GtkFileSystem * @bookmark: path of the bookmark to remove * @error: location to store error, or %NULL * * Removes a bookmark folder from the user's bookmarks list. If the operation * succeeds, the "bookmarks_changed" signal will be emitted. * * Return value: TRUE if the operation succeeds, FALSE otherwise. In the latter * case, the @error value will be set. **/ gboolean gtk_file_system_remove_bookmark (GtkFileSystem *file_system, const GtkFilePath *path, GError **error) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), FALSE); g_return_val_if_fail (path != NULL, FALSE); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->remove_bookmark (file_system, path, error); } /** * gtk_file_system_list_bookmarks: * @file_system: a #GtkFileSystem * * Queries the list of bookmarks in the file system. * * Return value: A list of #GtkFilePath, or NULL if there are no configured * bookmarks. You should use gtk_file_paths_free() to free this list. * * See also: gtk_file_system_get_supports_bookmarks() **/ GSList * gtk_file_system_list_bookmarks (GtkFileSystem *file_system) { g_return_val_if_fail (GTK_IS_FILE_SYSTEM (file_system), NULL); return GTK_FILE_SYSTEM_GET_IFACE (file_system)->list_bookmarks (file_system); } /***************************************** * GtkFileFolder * *****************************************/ GType gtk_file_folder_get_type (void) { static GType file_folder_type = 0; if (!file_folder_type) { static const GTypeInfo file_folder_info = { sizeof (GtkFileFolderIface), /* class_size */ gtk_file_folder_base_init, /* base_init */ NULL, /* base_finalize */ }; file_folder_type = g_type_register_static (G_TYPE_INTERFACE, "GtkFileFolder", &file_folder_info, 0); g_type_interface_add_prerequisite (file_folder_type, G_TYPE_OBJECT); } return file_folder_type; } static void gtk_file_folder_base_init (gpointer g_class) { static gboolean initialized = FALSE; if (!initialized) { GType iface_type = G_TYPE_FROM_INTERFACE (g_class); g_signal_new ("deleted", iface_type, G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkFileFolderIface, deleted), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); g_signal_new ("files-added", iface_type, G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkFileFolderIface, files_added), NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1, G_TYPE_POINTER); g_signal_new ("files-changed", iface_type, G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkFileFolderIface, files_changed), NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1, G_TYPE_POINTER); g_signal_new ("files-removed", iface_type, G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkFileFolderIface, files_removed), NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1, G_TYPE_POINTER); initialized = TRUE; } } gboolean gtk_file_folder_list_children (GtkFileFolder *folder, GSList **children, GError **error) { gboolean result; GSList *tmp_children = NULL; g_return_val_if_fail (GTK_IS_FILE_FOLDER (folder), FALSE); g_return_val_if_fail (error == NULL || *error == NULL, FALSE); result = GTK_FILE_FOLDER_GET_IFACE (folder)->list_children (folder, &tmp_children, error); g_assert (result || tmp_children == NULL); if (children) *children = tmp_children; else gtk_file_paths_free (tmp_children); return result; } GtkFileInfo * gtk_file_folder_get_info (GtkFileFolder *folder, const GtkFilePath *path, GError **error) { g_return_val_if_fail (GTK_IS_FILE_FOLDER (folder), NULL); g_return_val_if_fail (path != NULL, NULL); g_return_val_if_fail (error == NULL || *error == NULL, NULL); return GTK_FILE_FOLDER_GET_IFACE (folder)->get_info (folder, path, error); } GSList * gtk_file_paths_sort (GSList *paths) { return g_slist_sort (paths, (GCompareFunc)strcmp); } /** * gtk_file_paths_copy: * @paths: A #GSList of 3GtkFilePath structures. * * Copies a list of #GtkFilePath structures. * * Return value: A copy of @paths. Since the contents of the list are copied as * well, you should use gtk_file_paths_free() to free the result. **/ GSList * gtk_file_paths_copy (GSList *paths) { GSList *head, *tail, *l; head = tail = NULL; for (l = paths; l; l = l->next) { GtkFilePath *path; GSList *node; path = l->data; node = g_slist_alloc (); if (tail) tail->next = node; else head = node; node->data = gtk_file_path_copy (path); tail = node; } return head; } void gtk_file_paths_free (GSList *paths) { GSList *tmp_list; for (tmp_list = paths; tmp_list; tmp_list = tmp_list->next) gtk_file_path_free (tmp_list->data); g_slist_free (paths); }