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author | nobody <nobody@localhost> | 2000-05-22 06:40:15 +0800 |
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committer | nobody <nobody@localhost> | 2000-05-22 06:40:15 +0800 |
commit | b5f82e57fa8f5cc4538d3fd5e88cef6409265e0b (patch) | |
tree | 70ea22d6a4da2e07bedfe85a5cddc5e7ad0a1246 /shell/e-storage.c | |
parent | 3f5d9cb60827ca2a5e032e95aa241cc8376ab46f (diff) | |
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This commit was manufactured by cvs2svn to create tagGNOME_APPLETS_1_2_0
'GNOME_APPLETS_1_2_0'.
svn path=/tags/GNOME_APPLETS_1_2_0/; revision=3153
Diffstat (limited to 'shell/e-storage.c')
-rw-r--r-- | shell/e-storage.c | 473 |
1 files changed, 0 insertions, 473 deletions
diff --git a/shell/e-storage.c b/shell/e-storage.c deleted file mode 100644 index 5d5b1dd7a8..0000000000 --- a/shell/e-storage.c +++ /dev/null @@ -1,473 +0,0 @@ -/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ -/* e-storage.c - * - * Copyright (C) 2000 Helix Code, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * This program 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 - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - * - * Author: Ettore Perazzoli - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <gtk/gtkobject.h> -#include <gtk/gtksignal.h> - -#include <gnome.h> - -#include "e-util/e-util.h" - -#include "e-storage.h" - - -#define PARENT_TYPE GTK_TYPE_OBJECT -static GtkObjectClass *parent_class = NULL; - -#define ES_CLASS(obj) \ - E_STORAGE_CLASS (GTK_OBJECT (obj)->klass) - -struct _WatcherList { - char *path; - GList *watchers; -}; -typedef struct _WatcherList WatcherList; - -/* This describes a folder and its children. */ -struct _Folder { - struct _Folder *parent; - EFolder *e_folder; - GList *subfolders; -}; -typedef struct _Folder Folder; - -struct _EStoragePrivate { - GHashTable *path_to_watcher_list; - GHashTable *watcher_to_watcher_list; - - /* Every element here is a list of subfolders, hashed to the path of the parent. */ - GHashTable *path_to_folder; -}; - - -static Folder * -folder_new (EFolder *e_folder) -{ - Folder *folder; - - folder = g_new (Folder, 1); - folder->parent = NULL; - folder->e_folder = e_folder; - folder->subfolders = NULL; - - return folder; -} - -static void -folder_remove_subfolder (Folder *folder, Folder *subfolder) -{ - g_list_remove (folder->subfolders, folder); -} - -static void -folder_add_subfolder (Folder *folder, Folder *subfolder) -{ - folder->subfolders = g_list_prepend (folder->subfolders, subfolder); - subfolder->parent = folder; -} - -static void -folder_destroy (Folder *folder) -{ - GList *p; - - if (folder->parent != NULL) - folder_remove_subfolder (folder->parent, folder); - - gtk_object_unref (GTK_OBJECT (folder->e_folder)); - - for (p = folder->subfolders; p != NULL; p = p->next) - folder_destroy (p->data); - - g_free (folder); -} - - -/* Watcher management. */ - -static void -watcher_destroyed_cb (GtkObject *object, - gpointer data) -{ - EStorageWatcher *watcher; - EStorage *storage; - EStoragePrivate *priv; - WatcherList *list; - - watcher = E_STORAGE_WATCHER (object); - storage = E_STORAGE (data); - priv = storage->priv; - - list = g_hash_table_lookup (priv->watcher_to_watcher_list, watcher); - g_return_if_fail (list != NULL); - - list->watchers = g_list_remove (list->watchers, watcher); -} - -static void -free_watcher_list (EStorage *storage, - WatcherList *watcher_list) -{ - GtkObject *watcher_object; - GList *p; - - for (p = watcher_list->watchers; p != NULL; p = p->next) { - watcher_object = GTK_OBJECT (p->data); - gtk_signal_disconnect_by_func (watcher_object, watcher_destroyed_cb, storage); - - gtk_object_destroy (watcher_object); /* Make sure it does not live when we are dead. */ - gtk_object_unref (watcher_object); - } - - g_free (watcher_list->path); - - g_free (watcher_list); -} - -static void -hash_foreach_free_watcher_list (gpointer key, - gpointer value, - gpointer data) -{ - WatcherList *watcher_list; - EStorage *storage; - - storage = E_STORAGE (data); - watcher_list = (WatcherList *) value; - - free_watcher_list (storage, watcher_list); -} - -static void -free_private (EStorage *storage) -{ - EStoragePrivate *priv; - - priv = storage->priv; - - g_hash_table_foreach (priv->path_to_watcher_list, hash_foreach_free_watcher_list, storage); - g_hash_table_destroy (priv->path_to_watcher_list); - - g_hash_table_destroy (priv->watcher_to_watcher_list); - - g_free (priv); -} - - -/* EStorage methods. */ - -static GList * -list_folders (EStorage *storage, - const char *path) -{ - Folder *folder; - Folder *subfolder; - GList *list; - GList *p; - - folder = g_hash_table_lookup (storage->priv->path_to_folder, path); - if (folder == NULL) - return NULL; - - list = NULL; - for (p = folder->subfolders; p != NULL; p = p->next) { - subfolder = (Folder *) p->data; - - gtk_object_ref (GTK_OBJECT (subfolder->e_folder)); - list = g_list_prepend (list, subfolder->e_folder); - } - - return list; -} - -static EStorageWatcher * -get_watcher_for_path (EStorage *storage, - const char *path) -{ - EStoragePrivate *priv; - EStorageWatcher *watcher; - WatcherList *watcher_list; - - priv = storage->priv; - - watcher = e_storage_watcher_new (storage, path); - - watcher_list = g_hash_table_lookup (priv->path_to_watcher_list, path); - if (watcher_list == NULL) { - watcher_list = g_new (WatcherList, 1); - watcher_list->path = g_strdup (path); - watcher_list->watchers = NULL; - - g_hash_table_insert (priv->path_to_watcher_list, watcher_list->path, watcher_list); - } - - g_hash_table_insert (priv->watcher_to_watcher_list, watcher, watcher_list); - - watcher_list->watchers = g_list_prepend (watcher_list->watchers, watcher); - - gtk_signal_connect (GTK_OBJECT (watcher), "destroy", - GTK_SIGNAL_FUNC (watcher_destroyed_cb), storage); - - return watcher; -} - -static EFolder * -get_folder (EStorage *storage, - const char *path) -{ - EStoragePrivate *priv; - Folder *folder; - - priv = storage->priv; - - folder = g_hash_table_lookup (priv->path_to_folder, path); - if (folder == NULL) - return NULL; - - return folder->e_folder; -} - -static const char * -get_name (EStorage *storage) -{ - return "(No name)"; -} - - -/* GtkObject methods. */ - -static void -destroy (GtkObject *object) -{ - EStorage *storage; - - storage = E_STORAGE (object); - - free_private (storage); - - (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); -} - - -/* Initialization. */ - -static void -class_init (EStorageClass *class) -{ - GtkObjectClass *object_class; - - object_class = GTK_OBJECT_CLASS (class); - parent_class = gtk_type_class (gtk_object_get_type ()); - - object_class->destroy = destroy; - - class->list_folders = list_folders; - class->get_watcher_for_path = get_watcher_for_path; - class->get_folder = get_folder; - class->get_name = get_name; -} - -static void -init (EStorage *storage) -{ - EStoragePrivate *priv; - - priv = g_new (EStoragePrivate, 1); - - priv->path_to_watcher_list = g_hash_table_new (g_str_hash, g_str_equal); - priv->watcher_to_watcher_list = g_hash_table_new (g_direct_hash, g_direct_equal); - priv->path_to_folder = g_hash_table_new (g_str_hash, g_str_equal); - - storage->priv = priv; -} - - -/* Creation. */ - -void -e_storage_construct (EStorage *storage) -{ - Folder *root_folder; - - g_return_if_fail (storage != NULL); - g_return_if_fail (E_IS_STORAGE (storage)); - - GTK_OBJECT_UNSET_FLAGS (GTK_OBJECT (storage), GTK_FLOATING); - - root_folder = folder_new (NULL); - g_hash_table_insert (storage->priv->path_to_folder, G_DIR_SEPARATOR_S, root_folder); -} - -EStorage * -e_storage_new (void) -{ - EStorage *new; - - new = gtk_type_new (e_storage_get_type ()); - - e_storage_construct (new); - - return new; -} - - -gboolean -e_storage_path_is_absolute (const char *path) -{ - g_return_val_if_fail (path != NULL, FALSE); - - return *path == G_DIR_SEPARATOR; -} - -gboolean -e_storage_path_is_relative (const char *path) -{ - g_return_val_if_fail (path != NULL, FALSE); - - return *path != G_DIR_SEPARATOR; -} - - -GList * -e_storage_list_folders (EStorage *storage, - const char *path) -{ - g_return_val_if_fail (storage != NULL, NULL); - g_return_val_if_fail (E_IS_STORAGE (storage), NULL); - g_return_val_if_fail (path != NULL, NULL); - g_return_val_if_fail (g_path_is_absolute (path), NULL); - - return (* ES_CLASS (storage)->list_folders) (storage, path); -} - -EStorageWatcher * -e_storage_get_watcher_for_path (EStorage *storage, const char *path) -{ - g_return_val_if_fail (storage != NULL, NULL); - g_return_val_if_fail (E_IS_STORAGE (storage), NULL); - g_return_val_if_fail (path != NULL, NULL); - g_return_val_if_fail (e_storage_path_is_absolute (path), NULL); - - return (* ES_CLASS (storage)->get_watcher_for_path) (storage, path); -} - -EFolder * -e_storage_get_folder (EStorage *storage, - const char *path) -{ - g_return_val_if_fail (storage != NULL, NULL); - g_return_val_if_fail (E_IS_STORAGE (storage), NULL); - g_return_val_if_fail (path != NULL, NULL); - g_return_val_if_fail (e_storage_path_is_absolute (path), NULL); - - return (* ES_CLASS (storage)->get_folder) (storage, path); -} - -const char * -e_storage_get_name (EStorage *storage) -{ - g_return_val_if_fail (storage != NULL, NULL); - g_return_val_if_fail (E_IS_STORAGE (storage), NULL); - - return (* ES_CLASS (storage)->get_name) (storage); -} - - -/* These functions are used by subclasses to add and remove folders from the - state stored in the storage object. */ - -void -e_storage_new_folder (EStorage *storage, - const char *path, - EFolder *e_folder) -{ - EStoragePrivate *priv; - Folder *folder; - Folder *parent_folder; - const char *name; - char *full_path; - - g_return_if_fail (storage != NULL); - g_return_if_fail (E_IS_STORAGE (storage)); - g_return_if_fail (path != NULL); - g_return_if_fail (g_path_is_absolute (path)); - g_return_if_fail (e_folder != NULL); - g_return_if_fail (E_IS_FOLDER (e_folder)); - - priv = storage->priv; - - parent_folder = g_hash_table_lookup (priv->path_to_folder, path); - if (parent_folder == NULL) { - g_warning ("%s: Trying to add a subfolder to a path that does not exist yet -- %s", - __FUNCTION__, path); - return; - } - - name = e_folder_get_name (e_folder); - g_assert (name != NULL); - g_return_if_fail (*name != G_DIR_SEPARATOR); - - full_path = g_concat_dir_and_file (path, name); - - folder = g_hash_table_lookup (priv->path_to_folder, full_path); - if (folder != NULL) { - g_warning ("%s: Trying to add a subfolder for a path that already exists -- %s", - __FUNCTION__, full_path); - return; - } - - folder = folder_new (e_folder); - folder_add_subfolder (parent_folder, folder); - - g_hash_table_insert (priv->path_to_folder, full_path, folder); -} - -void -e_storage_remove_folder (EStorage *storage, - const char *path) -{ - EStoragePrivate *priv; - Folder *folder; - - g_return_if_fail (storage != NULL); - g_return_if_fail (E_IS_STORAGE (storage)); - g_return_if_fail (path != NULL); - g_return_if_fail (g_path_is_absolute (path)); - - priv = storage->priv; - - folder = g_hash_table_lookup (priv->path_to_folder, path); - if (folder == NULL) { - g_warning ("%s: Folder not found -- %s", __FUNCTION__, path); - return; - } - - folder_destroy (folder); -} - - -E_MAKE_TYPE (e_storage, "EStorage", EStorage, class_init, init, PARENT_TYPE) |