glib/gio/xdgmime/xdgmimeicon.c

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/* -*- mode: C; c-file-style: "gnu" -*- */
/* xdgmimeicon.c: Private file. Datastructure for storing the aliases.
*
* More info can be found at http://www.freedesktop.org/standards/
*
* Copyright (C) 2008 Red Hat, Inc.
*
* Licensed under the Academic Free License version 2.0
* Or under the following terms:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "xdgmimeicon.h"
#include "xdgmimeint.h"
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <string.h>
#include <fnmatch.h>
#ifndef FALSE
#define FALSE (0)
#endif
#ifndef TRUE
#define TRUE (!FALSE)
#endif
typedef struct XdgIcon XdgIcon;
struct XdgIcon
{
char *mime_type;
char *icon_name;
};
struct XdgIconList
{
struct XdgIcon *icons;
int n_icons;
};
XdgIconList *
_xdg_mime_icon_list_new (void)
{
XdgIconList *list;
list = malloc (sizeof (XdgIconList));
list->icons = NULL;
list->n_icons = 0;
return list;
}
void
_xdg_mime_icon_list_free (XdgIconList *list)
{
int i;
if (list->icons)
{
for (i = 0; i < list->n_icons; i++)
{
free (list->icons[i].mime_type);
free (list->icons[i].icon_name);
}
free (list->icons);
}
free (list);
}
static int
icon_entry_cmp (const void *v1, const void *v2)
{
return strcmp (((XdgIcon *)v1)->mime_type, ((XdgIcon *)v2)->mime_type);
}
const char *
_xdg_mime_icon_list_lookup (XdgIconList *list,
const char *mime_type)
{
XdgIcon *entry;
XdgIcon key;
if (list->n_icons > 0)
{
key.mime_type = (char *)mime_type;
key.icon_name = NULL;
entry = bsearch (&key, list->icons, list->n_icons,
sizeof (XdgIcon), icon_entry_cmp);
if (entry)
return entry->icon_name;
}
return NULL;
}
void
_xdg_mime_icon_read_from_file (XdgIconList *list,
const char *file_name)
{
FILE *file;
char line[255];
int alloc;
file = fopen (file_name, "r");
if (file == NULL)
return;
/* FIXME: Not UTF-8 safe. Doesn't work if lines are greater than 255 chars.
* Blah */
alloc = list->n_icons + 16;
list->icons = realloc (list->icons, alloc * sizeof (XdgIcon));
while (fgets (line, 255, file) != NULL)
{
char *sep;
if (line[0] == '#')
continue;
sep = strchr (line, ':');
if (sep == NULL)
continue;
*(sep++) = '\000';
sep[strlen (sep) -1] = '\000';
if (list->n_icons == alloc)
{
alloc <<= 1;
list->icons = realloc (list->icons,
alloc * sizeof (XdgIcon));
}
list->icons[list->n_icons].mime_type = strdup (line);
list->icons[list->n_icons].icon_name = strdup (sep);
list->n_icons++;
}
list->icons = realloc (list->icons,
list->n_icons * sizeof (XdgIcon));
fclose (file);
if (list->n_icons > 1)
qsort (list->icons, list->n_icons,
sizeof (XdgIcon), icon_entry_cmp);
}
void
_xdg_mime_icon_list_dump (XdgIconList *list)
{
int i;
if (list->icons)
{
for (i = 0; i < list->n_icons; i++)
{
printf ("%s %s\n",
list->icons[i].mime_type,
list->icons[i].icon_name);
}
}
}