accelerator.c

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/*
 * Copyright 2018 Vincent Sanders <vince@netsurf-browser.org>
 *
 * This file is part of NetSurf, http://www.netsurf-browser.org/
 *
 * NetSurf 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; version 2 of the License.
 *
 * NetSurf 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 <http://www.gnu.org/licenses/>.
 */
 
/**
 * \file
 * GTK accelerator support
 *
 */
 
#include <stdint.h>
#include <gtk/gtk.h>
 
#include "utils/log.h"
#include "utils/errors.h"
#include "utils/hashtable.h"
 
#include "gtk/resources.h"
#include "gtk/accelerator.h"
 
/** acclelerators are stored in a fixed-size hash table. */
#define HASH_SIZE 53
 
/** The hash table used to store the accelerators */
static struct hash_table *accelerators_hash = NULL;
 
nserror nsgtk_accelerator_init(char **respaths)
{
        nserror res;
        const uint8_t *data;
        size_t data_size;
 
        if (accelerators_hash == NULL) {
                accelerators_hash = hash_create(HASH_SIZE);
        }
        if (accelerators_hash == NULL) {
                NSLOG(netsurf, INFO, "Unable to create hash table");
                return NSERROR_NOMEM;
        }
 
        res = nsgtk_data_from_resname("accelerators", &data, &data_size);
        if (res == NSERROR_OK) {
                res = hash_add_inline(accelerators_hash, data, data_size);
        } else {
                const char *accelerators_path;
                /* Obtain path to accelerators */
                res = nsgtk_path_from_resname("accelerators",
                                              &accelerators_path);
                if (res == NSERROR_OK) {
                        res = hash_add_file(accelerators_hash,
                                            accelerators_path);
                }
        }
 
        return res;
}
 
const char *nsgtk_accelerator_get_desc(const char *key)
{
        if ((key == NULL) ||
            (accelerators_hash == NULL)) {
                return NULL;
        }
        return hash_get(accelerators_hash, key);
}