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-rwxr-xr-xgedit/gedit-metadata-manager.c563
1 files changed, 0 insertions, 563 deletions
diff --git a/gedit/gedit-metadata-manager.c b/gedit/gedit-metadata-manager.c
deleted file mode 100755
index bdb00fff..00000000
--- a/gedit/gedit-metadata-manager.c
+++ /dev/null
@@ -1,563 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/*
- * gedit-metadata-manager.c
- * This file is part of gedit
- *
- * Copyright (C) 2003-2007 Paolo Maggi
- *
- * 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.
- */
-
-/*
- * Modified by the gedit Team, 2003-2007. See the AUTHORS file for a
- * list of people on the gedit Team.
- * See the ChangeLog files for a list of changes.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <time.h>
-#include <stdlib.h>
-#include <libxml/xmlreader.h>
-#include "gedit-metadata-manager.h"
-#include "gedit-debug.h"
-#include "gedit-dirs.h"
-
-/*
-#define GEDIT_METADATA_VERBOSE_DEBUG 1
-*/
-
-#define METADATA_FILE "gedit-metadata.xml"
-
-#define MAX_ITEMS 50
-
-typedef struct _GeditMetadataManager GeditMetadataManager;
-
-typedef struct _Item Item;
-
-struct _Item
-{
- time_t atime; /* time of last access */
-
- GHashTable *values;
-};
-
-struct _GeditMetadataManager
-{
- gboolean values_loaded; /* It is true if the file
- has been read */
-
- guint timeout_id;
-
- GHashTable *items;
-};
-
-static gboolean gedit_metadata_manager_save (gpointer data);
-
-
-static GeditMetadataManager *gedit_metadata_manager = NULL;
-
-static void
-item_free (gpointer data)
-{
- Item *item;
-
- g_return_if_fail (data != NULL);
-
-#ifdef GEDIT_METADATA_VERBOSE_DEBUG
- gedit_debug (DEBUG_METADATA);
-#endif
-
- item = (Item *)data;
-
- if (item->values != NULL)
- g_hash_table_destroy (item->values);
-
- g_free (item);
-}
-
-static void
-gedit_metadata_manager_arm_timeout (void)
-{
- if (gedit_metadata_manager->timeout_id == 0)
- {
- gedit_metadata_manager->timeout_id =
- g_timeout_add_seconds_full (G_PRIORITY_DEFAULT_IDLE,
- 2,
- (GSourceFunc)gedit_metadata_manager_save,
- NULL,
- NULL);
- }
-}
-
-static gboolean
-gedit_metadata_manager_init (void)
-{
- gedit_debug (DEBUG_METADATA);
-
- if (gedit_metadata_manager != NULL)
- return TRUE;
-
- gedit_metadata_manager = g_new0 (GeditMetadataManager, 1);
-
- gedit_metadata_manager->values_loaded = FALSE;
-
- gedit_metadata_manager->items =
- g_hash_table_new_full (g_str_hash,
- g_str_equal,
- g_free,
- item_free);
-
- return TRUE;
-}
-
-/* This function must be called before exiting gedit */
-void
-gedit_metadata_manager_shutdown (void)
-{
- gedit_debug (DEBUG_METADATA);
-
- if (gedit_metadata_manager == NULL)
- return;
-
- if (gedit_metadata_manager->timeout_id)
- {
- g_source_remove (gedit_metadata_manager->timeout_id);
- gedit_metadata_manager->timeout_id = 0;
- gedit_metadata_manager_save (NULL);
- }
-
- if (gedit_metadata_manager->items != NULL)
- g_hash_table_destroy (gedit_metadata_manager->items);
-
- g_free (gedit_metadata_manager);
- gedit_metadata_manager = NULL;
-}
-
-static void
-parseItem (xmlDocPtr doc, xmlNodePtr cur)
-{
- Item *item;
-
- xmlChar *uri;
- xmlChar *atime;
-
-#ifdef GEDIT_METADATA_VERBOSE_DEBUG
- gedit_debug (DEBUG_METADATA);
-#endif
-
- if (xmlStrcmp (cur->name, (const xmlChar *)"document") != 0)
- return;
-
- uri = xmlGetProp (cur, (const xmlChar *)"uri");
- if (uri == NULL)
- return;
-
- atime = xmlGetProp (cur, (const xmlChar *)"atime");
- if (atime == NULL)
- {
- xmlFree (uri);
- return;
- }
-
- item = g_new0 (Item, 1);
-
- item->atime = g_ascii_strtoull ((char *)atime, NULL, 0);
-
- item->values = g_hash_table_new_full (g_str_hash,
- g_str_equal,
- g_free,
- g_free);
-
- cur = cur->xmlChildrenNode;
-
- while (cur != NULL)
- {
- if (xmlStrcmp (cur->name, (const xmlChar *)"entry") == 0)
- {
- xmlChar *key;
- xmlChar *value;
-
- key = xmlGetProp (cur, (const xmlChar *)"key");
- value = xmlGetProp (cur, (const xmlChar *)"value");
-
- if ((key != NULL) && (value != NULL))
- g_hash_table_insert (item->values,
- g_strdup ((gchar *)key),
- g_strdup ((gchar *)value));
-
- if (key != NULL)
- xmlFree (key);
- if (value != NULL)
- xmlFree (value);
- }
-
- cur = cur->next;
- }
-
- g_hash_table_insert (gedit_metadata_manager->items,
- g_strdup ((gchar *)uri),
- item);
-
- xmlFree (uri);
- xmlFree (atime);
-}
-
-static gchar *
-get_metadata_filename (void)
-{
- gchar *cache_dir;
- gchar *metadata;
-
- cache_dir = gedit_dirs_get_user_cache_dir ();
-
- metadata = g_build_filename (cache_dir,
- METADATA_FILE,
- NULL);
-
- g_free (cache_dir);
-
- return metadata;
-}
-
-static gboolean
-load_values (void)
-{
- xmlDocPtr doc;
- xmlNodePtr cur;
- gchar *file_name;
-
- gedit_debug (DEBUG_METADATA);
-
- g_return_val_if_fail (gedit_metadata_manager != NULL, FALSE);
- g_return_val_if_fail (gedit_metadata_manager->values_loaded == FALSE, FALSE);
-
- gedit_metadata_manager->values_loaded = TRUE;
-
- xmlKeepBlanksDefault (0);
-
- /* FIXME: file locking - Paolo */
- file_name = get_metadata_filename ();
- if ((file_name == NULL) ||
- (!g_file_test (file_name, G_FILE_TEST_EXISTS)))
- {
- g_free (file_name);
- return FALSE;
- }
-
- doc = xmlParseFile (file_name);
- g_free (file_name);
-
- if (doc == NULL)
- {
- return FALSE;
- }
-
- cur = xmlDocGetRootElement (doc);
- if (cur == NULL)
- {
- g_message ("The metadata file '%s' is empty", METADATA_FILE);
- xmlFreeDoc (doc);
-
- return FALSE;
- }
-
- if (xmlStrcmp (cur->name, (const xmlChar *) "metadata"))
- {
- g_message ("File '%s' is of the wrong type", METADATA_FILE);
- xmlFreeDoc (doc);
-
- return FALSE;
- }
-
- cur = xmlDocGetRootElement (doc);
- cur = cur->xmlChildrenNode;
-
- while (cur != NULL)
- {
- parseItem (doc, cur);
-
- cur = cur->next;
- }
-
- xmlFreeDoc (doc);
-
- return TRUE;
-}
-
-gchar *
-gedit_metadata_manager_get (const gchar *uri,
- const gchar *key)
-{
- Item *item;
- gchar *value;
-
- g_return_val_if_fail (uri != NULL, NULL);
- g_return_val_if_fail (key != NULL, NULL);
-
- gedit_debug_message (DEBUG_METADATA, "URI: %s --- key: %s", uri, key );
-
- gedit_metadata_manager_init ();
-
- if (!gedit_metadata_manager->values_loaded)
- {
- gboolean res;
-
- res = load_values ();
-
- if (!res)
- return NULL;
- }
-
- item = (Item *)g_hash_table_lookup (gedit_metadata_manager->items,
- uri);
-
- if (item == NULL)
- return NULL;
-
- item->atime = time (NULL);
-
- if (item->values == NULL)
- return NULL;
-
- value = g_hash_table_lookup (item->values, key);
-
- if (value == NULL)
- return NULL;
- else
- return g_strdup (value);
-}
-
-void
-gedit_metadata_manager_set (const gchar *uri,
- const gchar *key,
- const gchar *value)
-{
- Item *item;
-
- g_return_if_fail (uri != NULL);
- g_return_if_fail (key != NULL);
-
- gedit_debug_message (DEBUG_METADATA, "URI: %s --- key: %s --- value: %s", uri, key, value);
-
- gedit_metadata_manager_init ();
-
- if (!gedit_metadata_manager->values_loaded)
- {
- gboolean res;
-
- res = load_values ();
-
- if (!res)
- return;
- }
-
- item = (Item *)g_hash_table_lookup (gedit_metadata_manager->items,
- uri);
-
- if (item == NULL)
- {
- item = g_new0 (Item, 1);
-
- g_hash_table_insert (gedit_metadata_manager->items,
- g_strdup (uri),
- item);
- }
-
- if (item->values == NULL)
- item->values = g_hash_table_new_full (g_str_hash,
- g_str_equal,
- g_free,
- g_free);
- if (value != NULL)
- g_hash_table_insert (item->values,
- g_strdup (key),
- g_strdup (value));
- else
- g_hash_table_remove (item->values,
- key);
-
- item->atime = time (NULL);
-
- gedit_metadata_manager_arm_timeout ();
-}
-
-static void
-save_values (const gchar *key, const gchar *value, xmlNodePtr parent)
-{
- xmlNodePtr xml_node;
-
-#ifdef GEDIT_METADATA_VERBOSE_DEBUG
- gedit_debug (DEBUG_METADATA);
-#endif
-
- g_return_if_fail (key != NULL);
-
- if (value == NULL)
- return;
-
- xml_node = xmlNewChild (parent,
- NULL,
- (const xmlChar *)"entry",
- NULL);
-
- xmlSetProp (xml_node,
- (const xmlChar *)"key",
- (const xmlChar *)key);
- xmlSetProp (xml_node,
- (const xmlChar *)"value",
- (const xmlChar *)value);
-
-#ifdef GEDIT_METADATA_VERBOSE_DEBUG
- gedit_debug_message (DEBUG_METADATA, "entry: %s = %s", key, value);
-#endif
-}
-
-static void
-save_item (const gchar *key, const gpointer *data, xmlNodePtr parent)
-{
- xmlNodePtr xml_node;
- const Item *item = (const Item *)data;
- gchar *atime;
-
-#ifdef GEDIT_METADATA_VERBOSE_DEBUG
- gedit_debug (DEBUG_METADATA);
-#endif
-
- g_return_if_fail (key != NULL);
-
- if (item == NULL)
- return;
-
- xml_node = xmlNewChild (parent, NULL, (const xmlChar *)"document", NULL);
-
- xmlSetProp (xml_node, (const xmlChar *)"uri", (const xmlChar *)key);
-
-#ifdef GEDIT_METADATA_VERBOSE_DEBUG
- gedit_debug_message (DEBUG_METADATA, "uri: %s", key);
-#endif
-
- atime = g_strdup_printf ("%ld", item->atime);
- xmlSetProp (xml_node, (const xmlChar *)"atime", (const xmlChar *)atime);
-
-#ifdef GEDIT_METADATA_VERBOSE_DEBUG
- gedit_debug_message (DEBUG_METADATA, "atime: %s", atime);
-#endif
-
- g_free (atime);
-
- g_hash_table_foreach (item->values,
- (GHFunc)save_values,
- xml_node);
-}
-
-static void
-get_oldest (const gchar *key, const gpointer value, const gchar ** key_to_remove)
-{
- const Item *item = (const Item *)value;
-
- if (*key_to_remove == NULL)
- {
- *key_to_remove = key;
- }
- else
- {
- const Item *item_to_remove =
- g_hash_table_lookup (gedit_metadata_manager->items,
- *key_to_remove);
-
- g_return_if_fail (item_to_remove != NULL);
-
- if (item->atime < item_to_remove->atime)
- {
- *key_to_remove = key;
- }
- }
-}
-
-static void
-resize_items (void)
-{
- while (g_hash_table_size (gedit_metadata_manager->items) > MAX_ITEMS)
- {
- gpointer key_to_remove = NULL;
-
- g_hash_table_foreach (gedit_metadata_manager->items,
- (GHFunc)get_oldest,
- &key_to_remove);
-
- g_return_if_fail (key_to_remove != NULL);
-
- g_hash_table_remove (gedit_metadata_manager->items,
- key_to_remove);
- }
-}
-
-static gboolean
-gedit_metadata_manager_save (gpointer data)
-{
- xmlDocPtr doc;
- xmlNodePtr root;
- gchar *file_name;
-
- gedit_debug (DEBUG_METADATA);
-
- gedit_metadata_manager->timeout_id = 0;
-
- resize_items ();
-
- xmlIndentTreeOutput = TRUE;
-
- doc = xmlNewDoc ((const xmlChar *)"1.0");
- if (doc == NULL)
- return TRUE;
-
- /* Create metadata root */
- root = xmlNewDocNode (doc, NULL, (const xmlChar *)"metadata", NULL);
- xmlDocSetRootElement (doc, root);
-
- g_hash_table_foreach (gedit_metadata_manager->items,
- (GHFunc)save_item,
- root);
-
- /* FIXME: lock file - Paolo */
- file_name = get_metadata_filename ();
- if (file_name != NULL)
- {
- gchar *cache_dir;
- int res;
-
- /* make sure the cache dir exists */
- cache_dir = gedit_dirs_get_user_cache_dir ();
- res = g_mkdir_with_parents (cache_dir, 0755);
- if (res != -1)
- {
- xmlSaveFormatFile (file_name, doc, 1);
- }
-
- g_free (cache_dir);
- g_free (file_name);
- }
-
- xmlFreeDoc (doc);
-
- gedit_debug_message (DEBUG_METADATA, "DONE");
-
- return FALSE;
-}
-
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