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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GimpRc serialization and deserialization helpers
* Copyright (C) 2001-2005 Sven Neumann <sven@gimp.org>
*
* 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 3 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, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gio/gio.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "config-types.h"
#include "gimprc-unknown.h"
/*
* Code to store and lookup unknown tokens (string key/value pairs).
*/
#define GIMP_RC_UNKNOWN_TOKENS "gimp-rc-unknown-tokens"
typedef struct
{
gchar *key;
gchar *value;
} GimpConfigToken;
static void gimp_rc_destroy_unknown_tokens (GSList *unknown_tokens);
/**
* gimp_rc_add_unknown_token:
* @config: a #GObject.
* @key: a nul-terminated string to identify the value.
* @value: a nul-terminated string representing the value.
*
* This function adds arbitrary key/value pairs to a GObject. It's
* purpose is to attach additional data to a #GimpConfig object that
* can be stored along with the object properties when serializing the
* object to a configuration file. Please note however that the
* default gimp_config_serialize() implementation does not serialize
* unknown tokens.
*
* If you want to remove a key/value pair from the object, call this
* function with a %NULL @value.
**/
void
gimp_rc_add_unknown_token (GimpConfig *config,
const gchar *key,
const gchar *value)
{
GimpConfigToken *token;
GSList *unknown_tokens;
GSList *last;
GSList *list;
g_return_if_fail (GIMP_IS_CONFIG (config));
g_return_if_fail (key != NULL);
unknown_tokens = (GSList *) g_object_get_data (G_OBJECT (config),
GIMP_RC_UNKNOWN_TOKENS);
for (last = NULL, list = unknown_tokens;
list;
last = list, list = g_slist_next (list))
{
token = (GimpConfigToken *) list->data;
if (strcmp (token->key, key) == 0)
{
g_free (token->value);
if (value)
{
token->value = g_strdup (value);
}
else
{
g_free (token->key);
unknown_tokens = g_slist_remove (unknown_tokens, token);
g_object_set_data_full (G_OBJECT (config),
GIMP_RC_UNKNOWN_TOKENS,
unknown_tokens,
(GDestroyNotify) gimp_rc_destroy_unknown_tokens);
}
return;
}
}
if (!value)
return;
token = g_slice_new (GimpConfigToken);
token->key = g_strdup (key);
token->value = g_strdup (value);
if (last)
{
last = g_slist_last (g_slist_append (last, token));
}
else
{
unknown_tokens = g_slist_append (NULL, token);
g_object_set_data_full (G_OBJECT (config),
GIMP_RC_UNKNOWN_TOKENS,
unknown_tokens,
(GDestroyNotify) gimp_rc_destroy_unknown_tokens);
}
}
/**
* gimp_rc_lookup_unknown_token:
* @config: a #GObject.
* @key: a nul-terminated string to identify the value.
*
* This function retrieves data that was previously attached using
* gimp_rc_add_unknown_token(). You should not free or modify
* the returned string.
*
* Returns: a pointer to a constant string.
**/
const gchar *
gimp_rc_lookup_unknown_token (GimpConfig *config,
const gchar *key)
{
GSList *unknown_tokens;
GSList *list;
g_return_val_if_fail (GIMP_IS_CONFIG (config), NULL);
g_return_val_if_fail (key != NULL, NULL);
unknown_tokens = g_object_get_data (G_OBJECT (config),
GIMP_RC_UNKNOWN_TOKENS);
for (list = unknown_tokens; list; list = g_slist_next (list))
{
GimpConfigToken *token = list->data;
if (strcmp (token->key, key) == 0)
return token->value;
}
return NULL;
}
/**
* gimp_rc_foreach_unknown_token:
* @config: a #GObject.
* @func: a function to call for each key/value pair.
* @user_data: data to pass to @func.
*
* Calls @func for each key/value stored with the @config using
* gimp_rc_add_unknown_token().
**/
void
gimp_rc_foreach_unknown_token (GimpConfig *config,
GimpConfigForeachFunc func,
gpointer user_data)
{
GSList *unknown_tokens;
GSList *list;
g_return_if_fail (GIMP_IS_CONFIG (config));
g_return_if_fail (func != NULL);
unknown_tokens = g_object_get_data (G_OBJECT (config),
GIMP_RC_UNKNOWN_TOKENS);
for (list = unknown_tokens; list; list = g_slist_next (list))
{
GimpConfigToken *token = list->data;
func (token->key, token->value, user_data);
}
}
static void
gimp_rc_destroy_unknown_tokens (GSList *unknown_tokens)
{
GSList *list;
for (list = unknown_tokens; list; list = g_slist_next (list))
{
GimpConfigToken *token = list->data;
g_free (token->key);
g_free (token->value);
g_slice_free (GimpConfigToken, token);
}
g_slist_free (unknown_tokens);
}
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