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/*
* Application configuration
*
* Copyright (C) 2017 Patrick McDermott
*
* This file is part of Marquee.
*
* Marquee 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.
*
* Marquee 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 Marquee. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <stdlib.h>
#include <glib.h>
#include "config.h"
enum type {
TYPE_BOOLEAN,
};
union callback {
void (*boolean_cb)(const gchar *, gboolean, gpointer);
};
struct callbacks {
union callback cb;
gpointer user_data;
struct callbacks *next;
};
struct item {
enum type type;
struct callbacks *callbacks;
};
static void
split_name(const gchar *name, gchar **group, gchar **key)
{
*group = g_strdup(name);
*key = strchr(*group, '.');
*(key[0]) = '\0';
++*key;
}
static void
set_type_or_run_callbacks(MqConfig *config, const gchar *name, gpointer value,
enum type type)
{
struct item *item;
struct callbacks *cbs;
if (!config->types_and_cbs_set) {
item = g_malloc(sizeof(*item));
item->type = type;
item->callbacks = NULL;
g_hash_table_insert(config->types_and_cbs, g_strdup(name),
item);
} else {
item = g_hash_table_lookup(config->types_and_cbs, name);
for (cbs = item->callbacks; cbs; cbs = cbs->next) {
switch (item->type) {
case TYPE_BOOLEAN:
cbs->cb.boolean_cb(name,
*((gboolean *) value),
cbs->user_data);
break;
}
}
}
}
static void
set_defaults(MqConfig *config)
{
config->types_and_cbs_set = FALSE;
config->types_and_cbs_set = TRUE;
}
MqConfig *
mq_config_new(const gchar *profile)
{
MqConfig *config;
config = malloc(sizeof(*config));
config->file_name = g_strdup_printf("%s/%s/config",
g_get_user_config_dir(), profile);
config->key_file = g_key_file_new();
config->types_and_cbs = g_hash_table_new(g_str_hash, g_int_equal);
set_defaults(config);
return config;
}
gboolean
mq_config_load(MqConfig *config)
{
/* TODO: Handle parsing and ENOENT errors differently? */
return g_key_file_load_from_file(config->key_file, config->file_name,
G_KEY_FILE_KEEP_COMMENTS | G_KEY_FILE_KEEP_TRANSLATIONS, NULL);
}
gboolean
mq_config_save(MqConfig *config)
{
/* TODO: Handle GFileError? */
return g_key_file_save_to_file(config->key_file, config->file_name,
NULL);
}
void
mq_config_set_boolean(MqConfig *config, const gchar *name, gboolean value)
{
gchar *group;
gchar *key;
split_name(name, &group, &key);
g_key_file_set_boolean(config->key_file, group, name, value);
set_type_or_run_callbacks(config, name, &value, TYPE_BOOLEAN);
}
void
mq_config_set(MqConfig *config, const gchar *name, const gchar *value)
{
struct item *item;
item = g_hash_table_lookup(config->types_and_cbs, name);
g_assert(item);
switch (item->type) {
case TYPE_BOOLEAN:
/* value is "on" or "off" (as implemented in
* mq_html_input_checkbox()). */
mq_config_set_boolean(config, name,
value[1] == 'n' ? TRUE : FALSE);
break;
}
}
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