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/*
* panel-glib.c: various small extensions to glib
*
* Copyright (C) 2008 Novell, Inc.
*
* Originally based on code from panel-util.c (there was no relevant copyright
* header at the time), but the code was:
* Copyright (C) Novell, Inc. (for the panel_g_utf8_strstrcase() code)
* Copyright (C) Dennis Cranston (for the panel_g_lookup_in_data_dirs() code)
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* Authors:
* Vincent Untz <vuntz@gnome.org>
*/
#include <string.h>
#include <glib.h>
#include "panel-glib.h"
typedef char * (*LookupInDir) (const char *basename, const char *dir);
static char *
_lookup_in_dir (const char *basename,
const char *dir)
{
char *path;
path = g_build_filename (dir, basename, NULL);
if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
g_free (path);
return NULL;
}
return path;
}
static char *
_lookup_in_applications_subdir (const char *basename,
const char *dir)
{
char *path;
path = g_build_filename (dir, "applications", basename, NULL);
if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
g_free (path);
return NULL;
}
return path;
}
static char *
_panel_g_lookup_in_data_dirs_internal (const char *basename,
LookupInDir lookup)
{
const char * const *system_data_dirs;
const char *user_data_dir;
char *retval;
int i;
user_data_dir = g_get_user_data_dir ();
system_data_dirs = g_get_system_data_dirs ();
if ((retval = lookup (basename, user_data_dir)))
return retval;
for (i = 0; system_data_dirs[i]; i++)
if ((retval = lookup (basename, system_data_dirs[i])))
return retval;
return NULL;
}
char *
panel_g_lookup_in_data_dirs (const char *basename)
{
return _panel_g_lookup_in_data_dirs_internal (basename,
_lookup_in_dir);
}
char *
panel_g_lookup_in_applications_dirs (const char *basename)
{
return _panel_g_lookup_in_data_dirs_internal (basename,
_lookup_in_applications_subdir);
}
/* Copied from evolution-data-server/libedataserver/e-util.c:
* e_util_unicode_get_utf8() */
static char *
_unicode_get_utf8 (const char *text, gunichar *out)
{
*out = g_utf8_get_char (text);
return (*out == (gunichar)-1) ? NULL : g_utf8_next_char (text);
}
/* Copied from evolution-data-server/libedataserver/e-util.c:
* e_util_utf8_strstrcase() */
const char *
panel_g_utf8_strstrcase (const char *haystack, const char *needle)
{
gunichar *nuni;
gunichar unival;
gint nlen;
const char *o, *p;
if (haystack == NULL) return NULL;
if (needle == NULL) return NULL;
if (strlen (needle) == 0) return haystack;
if (strlen (haystack) == 0) return NULL;
nuni = g_alloca (sizeof (gunichar) * strlen (needle));
nlen = 0;
for (p = _unicode_get_utf8 (needle, &unival);
p && unival;
p = _unicode_get_utf8 (p, &unival)) {
nuni[nlen++] = g_unichar_tolower (unival);
}
/* NULL means there was illegal utf-8 sequence */
if (!p) return NULL;
o = haystack;
for (p = _unicode_get_utf8 (o, &unival);
p && unival;
p = _unicode_get_utf8 (p, &unival)) {
gint sc;
sc = g_unichar_tolower (unival);
/* We have valid stripped char */
if (sc == nuni[0]) {
const char *q = p;
gint npos = 1;
while (npos < nlen) {
q = _unicode_get_utf8 (q, &unival);
if (!q || !unival) return NULL;
sc = g_unichar_tolower (unival);
if (sc != nuni[npos]) break;
npos++;
}
if (npos == nlen) {
return o;
}
}
o = p;
}
return NULL;
}
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