763 lines
22 KiB
C
763 lines
22 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
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*
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* Copyright 2009-2010 Red Hat, Inc,
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Written by: Matthias Clasen <mclasen@redhat.com>
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <locale.h>
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#include <glib.h>
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#include <glib/gi18n.h>
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#include <gtk/gtk.h>
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#include <fontconfig/fontconfig.h>
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#define GNOME_DESKTOP_USE_UNSTABLE_API
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#include <libgnome-desktop/gnome-languages.h>
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#include "cc-common-language.h"
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static char *get_lang_for_user_object_path (const char *path);
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static gint
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cc_common_language_sort_languages (GtkTreeModel *model,
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GtkTreeIter *a,
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GtkTreeIter *b,
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gpointer data)
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{
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char *ca, *cb;
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char *la, *lb;
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gboolean sa, ula;
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gboolean sb, ulb;
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gint result;
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gtk_tree_model_get (model, a,
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LOCALE_COL, &ca,
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DISPLAY_LOCALE_COL, &la,
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SEPARATOR_COL, &sa,
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USER_LANGUAGE, &ula,
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-1);
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gtk_tree_model_get (model, b,
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LOCALE_COL, &cb,
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DISPLAY_LOCALE_COL, &lb,
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SEPARATOR_COL, &sb,
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USER_LANGUAGE, &ulb,
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-1);
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/* Sort before and after separator first */
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if (sa && sb)
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result = 0;
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else if (sa)
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result = ulb ? 1 : -1;
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else if (sb)
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result = ula ? -1 : 1;
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/* Sort user-languages first */
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else if (ula != ulb) {
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if (ula)
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result = -1;
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else
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result = 1;
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}
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else if (!ca)
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result = 1;
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else if (!cb)
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result = -1;
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else
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result = strcmp (la, lb);
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g_free (ca);
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g_free (cb);
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g_free (la);
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g_free (lb);
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return result;
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}
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static gboolean
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iter_for_language (GtkTreeModel *model,
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const gchar *lang,
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GtkTreeIter *iter,
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gboolean region)
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{
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char *l;
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char *name;
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char *language;
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gtk_tree_model_get_iter_first (model, iter);
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do {
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gtk_tree_model_get (model, iter, LOCALE_COL, &l, -1);
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if (g_strcmp0 (l, lang) == 0) {
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g_free (l);
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return TRUE;
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}
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g_free (l);
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} while (gtk_tree_model_iter_next (model, iter));
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name = gnome_normalize_locale (lang);
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if (name != NULL) {
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if (region) {
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language = gnome_get_country_from_locale (name, NULL);
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}
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else {
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language = gnome_get_language_from_locale (name, NULL);
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}
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gtk_list_store_insert_with_values (GTK_LIST_STORE (model),
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iter,
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-1,
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LOCALE_COL, name,
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DISPLAY_LOCALE_COL, language,
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-1);
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g_free (name);
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g_free (language);
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return TRUE;
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}
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return FALSE;
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}
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gboolean
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cc_common_language_get_iter_for_language (GtkTreeModel *model,
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const gchar *lang,
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GtkTreeIter *iter)
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{
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return iter_for_language (model, lang, iter, FALSE);
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}
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gboolean
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cc_common_language_get_iter_for_region (GtkTreeModel *model,
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const gchar *lang,
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GtkTreeIter *iter)
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{
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return iter_for_language (model, lang, iter, TRUE);
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}
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gboolean
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cc_common_language_has_font (const gchar *locale)
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{
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const FcCharSet *charset;
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FcPattern *pattern;
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FcObjectSet *object_set;
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FcFontSet *font_set;
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gchar *language_code;
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gboolean is_displayable;
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is_displayable = FALSE;
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pattern = NULL;
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object_set = NULL;
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font_set = NULL;
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if (!gnome_parse_locale (locale, &language_code, NULL, NULL, NULL))
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return FALSE;
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charset = FcLangGetCharSet ((FcChar8 *) language_code);
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if (!charset) {
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/* fontconfig does not know about this language */
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is_displayable = TRUE;
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}
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else {
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/* see if any fonts support rendering it */
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pattern = FcPatternBuild (NULL, FC_LANG, FcTypeString, language_code, NULL);
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if (pattern == NULL)
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goto done;
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object_set = FcObjectSetCreate ();
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if (object_set == NULL)
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goto done;
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font_set = FcFontList (NULL, pattern, object_set);
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if (font_set == NULL)
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goto done;
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is_displayable = (font_set->nfont > 0);
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}
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done:
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if (font_set != NULL)
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FcFontSetDestroy (font_set);
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if (object_set != NULL)
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FcObjectSetDestroy (object_set);
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if (pattern != NULL)
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FcPatternDestroy (pattern);
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g_free (language_code);
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return is_displayable;
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}
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typedef struct
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{
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GtkListStore *store;
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GHashTable *user_langs;
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gchar **languages;
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gboolean regions;
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gint position;
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} AsyncLangData;
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static void
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async_lang_data_free (AsyncLangData *data)
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{
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g_object_unref (data->store);
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g_hash_table_unref (data->user_langs);
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g_strfreev (data->languages);
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g_free (data);
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}
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static gboolean
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add_one_language (gpointer d)
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{
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AsyncLangData *data = d;
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char *name;
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char *language;
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GtkTreeIter iter;
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if (data->languages[data->position] == NULL) {
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/* we are done */
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async_lang_data_free (data);
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return FALSE;
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}
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name = gnome_normalize_locale (data->languages[data->position]);
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if (g_hash_table_lookup (data->user_langs, name) != NULL) {
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g_free (name);
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goto next;
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}
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if (!cc_common_language_has_font (data->languages[data->position])) {
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g_free (name);
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goto next;
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}
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if (data->regions) {
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language = gnome_get_country_from_locale (name, NULL);
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}
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else {
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language = gnome_get_language_from_locale (name, NULL);
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}
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if (!language) {
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g_debug ("Ignoring '%s' as a locale, because we couldn't figure the language name", name);
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g_free (name);
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goto next;
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}
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gtk_list_store_insert_with_values (data->store,
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&iter,
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-1,
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LOCALE_COL, name,
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DISPLAY_LOCALE_COL, language,
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-1);
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g_free (name);
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g_free (language);
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next:
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data->position++;
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return TRUE;
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}
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guint
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cc_common_language_add_available_languages (GtkListStore *store,
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gboolean regions,
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GHashTable *user_langs)
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{
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AsyncLangData *data;
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data = g_new0 (AsyncLangData, 1);
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data->store = g_object_ref (store);
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data->user_langs = g_hash_table_ref (user_langs);
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data->languages = gnome_get_all_locales ();
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data->regions = regions;
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data->position = 0;
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return g_idle_add (add_one_language, data);
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}
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gchar *
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cc_common_language_get_current_language (void)
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{
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gchar *language;
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char *path;
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const gchar *locale;
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path = g_strdup_printf ("/org/freedesktop/Accounts/User%d", getuid ());
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language = get_lang_for_user_object_path (path);
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g_free (path);
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if (language != NULL && *language != '\0')
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return language;
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locale = (const gchar *) setlocale (LC_MESSAGES, NULL);
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if (locale)
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language = gnome_normalize_locale (locale);
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else
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language = NULL;
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return language;
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}
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typedef struct {
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GtkListStore *store;
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gboolean user_lang;
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} LangForeachData;
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static void
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languages_foreach_cb (gpointer key,
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gpointer value,
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gpointer user_data)
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{
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LangForeachData *data = (LangForeachData *) user_data;
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const char *locale = (const char *) key;
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const char *display_locale = (const char *) value;
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gtk_list_store_insert_with_values (data->store,
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NULL,
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-1,
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LOCALE_COL, locale,
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DISPLAY_LOCALE_COL, display_locale,
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SEPARATOR_COL, FALSE,
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USER_LANGUAGE, data->user_lang,
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-1);
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}
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static gboolean
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separator_func (GtkTreeModel *model,
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GtkTreeIter *iter,
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gpointer data)
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{
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gboolean is_sep;
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gtk_tree_model_get (model, iter,
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SEPARATOR_COL, &is_sep,
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-1);
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return is_sep;
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}
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void
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cc_common_language_setup_list (GtkWidget *treeview,
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GHashTable *users,
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GHashTable *initial)
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{
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GtkCellRenderer *cell;
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GtkTreeViewColumn *column;
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GtkListStore *store;
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LangForeachData data;
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GList *langs, *l;
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cell = gtk_cell_renderer_text_new ();
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g_object_set (cell,
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"width-chars", 40,
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"ellipsize", PANGO_ELLIPSIZE_END,
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NULL);
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column = gtk_tree_view_column_new_with_attributes (NULL, cell, "text", DISPLAY_LOCALE_COL, NULL);
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gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
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store = gtk_list_store_new (NUM_COLS, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN);
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gtk_tree_sortable_set_default_sort_func (GTK_TREE_SORTABLE (store),
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cc_common_language_sort_languages, NULL, NULL);
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gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (store),
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GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
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GTK_SORT_ASCENDING);
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gtk_tree_view_set_row_separator_func (GTK_TREE_VIEW (treeview),
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separator_func,
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NULL, NULL);
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gtk_tree_view_set_model (GTK_TREE_VIEW (treeview), GTK_TREE_MODEL (store));
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data.store = store;
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/* Add the original users languages */
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if (users != NULL && g_hash_table_size (users) > 0) {
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data.user_lang = TRUE;
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g_hash_table_foreach (users, (GHFunc) languages_foreach_cb, &data);
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gtk_list_store_insert_with_values (store,
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NULL,
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-1,
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LOCALE_COL, NULL,
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DISPLAY_LOCALE_COL, "Don't show",
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SEPARATOR_COL, TRUE,
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USER_LANGUAGE, FALSE,
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-1);
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}
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/* Add languages from the initial hashtable */
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data.user_lang = FALSE;
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langs = initial ? g_hash_table_get_keys (initial) : NULL;
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for (l = langs; l != NULL; l = l->next) {
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char *lang = l->data;
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if (g_hash_table_lookup (users, lang) != NULL)
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continue;
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languages_foreach_cb (lang, g_hash_table_lookup (initial, lang), &data);
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}
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}
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void
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cc_common_language_select_current_language (GtkTreeView *treeview)
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{
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GtkTreeModel *model;
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GtkTreeIter iter;
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gboolean cont;
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char *lang;
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gboolean found;
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lang = cc_common_language_get_current_language ();
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g_debug ("Trying to select lang '%s' in treeview", lang);
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model = gtk_tree_view_get_model (treeview);
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found = FALSE;
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cont = gtk_tree_model_get_iter_first (model, &iter);
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while (cont) {
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char *locale;
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gtk_tree_model_get (model, &iter,
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LOCALE_COL, &locale,
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-1);
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if (locale != NULL &&
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g_str_equal (locale, lang)) {
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GtkTreeSelection *selection;
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g_debug ("Found '%s' in treeview", locale);
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found = TRUE;
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selection = gtk_tree_view_get_selection (treeview);
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gtk_tree_selection_select_iter (selection, &iter);
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g_free (locale);
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break;
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}
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g_free (locale);
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cont = gtk_tree_model_iter_next (model, &iter);
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}
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g_free (lang);
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if (found == FALSE)
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g_warning ("Could not find current language '%s' in the treeview", lang);
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}
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static gboolean
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user_language_has_translations (const char *locale)
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{
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char *name, *language_code, *territory_code;
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gboolean ret;
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gnome_parse_locale (locale,
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&language_code,
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&territory_code,
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NULL, NULL);
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name = g_strdup_printf ("%s%s%s",
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language_code,
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territory_code != NULL? "_" : "",
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territory_code != NULL? territory_code : "");
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g_free (language_code);
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g_free (territory_code);
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ret = gnome_language_has_translations (name);
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g_free (name);
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return ret;
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}
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static char *
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get_lang_for_user_object_path (const char *path)
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{
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GError *error = NULL;
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GDBusProxy *user;
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GVariant *props;
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char *lang;
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user = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
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G_DBUS_PROXY_FLAGS_NONE,
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NULL,
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"org.freedesktop.Accounts",
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path,
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"org.freedesktop.Accounts.User",
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NULL,
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&error);
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if (user == NULL) {
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g_warning ("Failed to get proxy for user '%s': %s",
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path, error->message);
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g_error_free (error);
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return NULL;
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}
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props = g_dbus_proxy_get_cached_property (user, "Language");
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if (props == NULL) {
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g_object_unref (user);
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return NULL;
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}
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lang = g_variant_dup_string (props, NULL);
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g_variant_unref (props);
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g_object_unref (user);
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return lang;
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}
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static void
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add_other_users_language (GHashTable *ht)
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{
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GVariant *variant;
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GVariantIter *vi;
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GError *error = NULL;
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const char *str;
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GDBusProxy *proxy;
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proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
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G_DBUS_PROXY_FLAGS_NONE,
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NULL,
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"org.freedesktop.Accounts",
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"/org/freedesktop/Accounts",
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"org.freedesktop.Accounts",
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NULL,
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NULL);
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if (proxy == NULL)
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return;
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variant = g_dbus_proxy_call_sync (proxy,
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"ListCachedUsers",
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NULL,
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G_DBUS_CALL_FLAGS_NONE,
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-1,
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NULL,
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&error);
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if (variant == NULL) {
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g_warning ("Failed to list existing users: %s", error->message);
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g_error_free (error);
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g_object_unref (proxy);
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return;
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}
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g_variant_get (variant, "(ao)", &vi);
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while (g_variant_iter_loop (vi, "o", &str)) {
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char *lang;
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char *name;
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char *language;
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lang = get_lang_for_user_object_path (str);
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if (lang != NULL && *lang != '\0' &&
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cc_common_language_has_font (lang) &&
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user_language_has_translations (lang)) {
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name = gnome_normalize_locale (lang);
|
|
if (!g_hash_table_lookup (ht, name)) {
|
|
language = gnome_get_language_from_locale (name, NULL);
|
|
g_hash_table_insert (ht, name, language);
|
|
}
|
|
else {
|
|
g_free (name);
|
|
}
|
|
}
|
|
g_free (lang);
|
|
}
|
|
g_variant_iter_free (vi);
|
|
g_variant_unref (variant);
|
|
|
|
g_object_unref (proxy);
|
|
}
|
|
|
|
static void
|
|
insert_language (GHashTable *ht,
|
|
const char *lang)
|
|
{
|
|
gboolean has_translations;
|
|
char *label_own_lang;
|
|
char *label_current_lang;
|
|
char *label_untranslated;
|
|
char *key;
|
|
|
|
has_translations = gnome_language_has_translations (lang);
|
|
if (!has_translations) {
|
|
char *lang_code = g_strndup (lang, 2);
|
|
has_translations = gnome_language_has_translations (lang_code);
|
|
g_free (lang_code);
|
|
|
|
if (!has_translations)
|
|
return;
|
|
}
|
|
|
|
g_debug ("We have translations for %s", lang);
|
|
|
|
if (g_str_has_suffix (lang, ".utf8"))
|
|
key = g_strdup (lang);
|
|
else
|
|
key = g_strdup_printf ("%s.utf8", lang);
|
|
|
|
label_own_lang = gnome_get_language_from_locale (key, key);
|
|
label_current_lang = gnome_get_language_from_locale (key, NULL);
|
|
label_untranslated = gnome_get_language_from_locale (key, "C");
|
|
|
|
/* We don't have a translation for the label in
|
|
* its own language? */
|
|
if (g_strcmp0 (label_own_lang, label_untranslated) == 0) {
|
|
if (g_strcmp0 (label_current_lang, label_untranslated) == 0)
|
|
g_hash_table_insert (ht, key, g_strdup (label_untranslated));
|
|
else
|
|
g_hash_table_insert (ht, key, g_strdup (label_current_lang));
|
|
} else {
|
|
g_hash_table_insert (ht, key, g_strdup (label_own_lang));
|
|
}
|
|
|
|
g_free (label_own_lang);
|
|
g_free (label_current_lang);
|
|
g_free (label_untranslated);
|
|
}
|
|
|
|
GHashTable *
|
|
cc_common_language_get_initial_languages (void)
|
|
{
|
|
GHashTable *ht;
|
|
|
|
ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
|
|
|
|
insert_language (ht, "en_US");
|
|
insert_language (ht, "en_GB");
|
|
insert_language (ht, "de_DE");
|
|
insert_language (ht, "fr_FR");
|
|
insert_language (ht, "es_ES");
|
|
insert_language (ht, "zh_CN");
|
|
insert_language (ht, "ja_JP");
|
|
insert_language (ht, "ru_RU");
|
|
insert_language (ht, "ar_EG");
|
|
|
|
return ht;
|
|
}
|
|
|
|
GHashTable *
|
|
cc_common_language_get_user_languages (void)
|
|
{
|
|
GHashTable *ht;
|
|
char *name;
|
|
char *language;
|
|
|
|
ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
|
|
|
|
/* Add the languages used by other users on the system */
|
|
add_other_users_language (ht);
|
|
|
|
/* Add current locale */
|
|
name = cc_common_language_get_current_language ();
|
|
if (g_hash_table_lookup (ht, name) == NULL) {
|
|
language = gnome_get_language_from_locale (name, NULL);
|
|
g_hash_table_insert (ht, name, language);
|
|
} else {
|
|
g_free (name);
|
|
}
|
|
|
|
return ht;
|
|
}
|
|
|
|
GHashTable *
|
|
cc_common_language_get_initial_regions (const gchar *lang)
|
|
{
|
|
GHashTable *ht;
|
|
char *language;
|
|
gchar **langs;
|
|
gint i;
|
|
|
|
ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
|
|
|
|
#if 0
|
|
/* Add some common regions */
|
|
g_hash_table_insert (ht, g_strdup ("en_US.utf8"), g_strdup (_("United States")));
|
|
g_hash_table_insert (ht, g_strdup ("de_DE.utf8"), g_strdup (_("Germany")));
|
|
g_hash_table_insert (ht, g_strdup ("fr_FR.utf8"), g_strdup (_("France")));
|
|
g_hash_table_insert (ht, g_strdup ("es_ES.utf8"), g_strdup (_("Spain")));
|
|
g_hash_table_insert (ht, g_strdup ("zh_CN.utf8"), g_strdup (_("China")));
|
|
#endif
|
|
|
|
gnome_parse_locale (lang, &language, NULL, NULL, NULL);
|
|
langs = gnome_get_all_locales ();
|
|
for (i = 0; langs[i]; i++) {
|
|
gchar *l, *s;
|
|
gnome_parse_locale (langs[i], &l, NULL, NULL, NULL);
|
|
if (g_strcmp0 (language, l) == 0) {
|
|
if (!g_hash_table_lookup (ht, langs[i])) {
|
|
s = gnome_get_country_from_locale (langs[i], NULL);
|
|
g_hash_table_insert (ht, g_strdup (langs[i]), s);
|
|
}
|
|
}
|
|
g_free (l);
|
|
}
|
|
g_strfreev (langs);
|
|
g_free (language);
|
|
|
|
return ht;
|
|
}
|
|
|
|
static void
|
|
foreach_user_lang_cb (gpointer key,
|
|
gpointer value,
|
|
gpointer user_data)
|
|
{
|
|
GtkListStore *store = (GtkListStore *) user_data;
|
|
const char *locale = (const char *) key;
|
|
const char *display_locale = (const char *) value;
|
|
GtkTreeIter iter;
|
|
|
|
gtk_list_store_append (store, &iter);
|
|
gtk_list_store_set (store, &iter,
|
|
LOCALE_COL, locale,
|
|
DISPLAY_LOCALE_COL, display_locale,
|
|
-1);
|
|
}
|
|
|
|
void
|
|
cc_common_language_add_user_languages (GtkTreeModel *model)
|
|
{
|
|
char *name;
|
|
GtkTreeIter iter;
|
|
GtkListStore *store = GTK_LIST_STORE (model);
|
|
GHashTable *user_langs;
|
|
const char *display;
|
|
|
|
gtk_list_store_clear (store);
|
|
|
|
user_langs = cc_common_language_get_initial_languages ();
|
|
|
|
/* Add the current locale first */
|
|
name = cc_common_language_get_current_language ();
|
|
display = g_hash_table_lookup (user_langs, name);
|
|
if (!display) {
|
|
insert_language (user_langs, name);
|
|
display = g_hash_table_lookup (user_langs, name);
|
|
}
|
|
|
|
gtk_list_store_append (store, &iter);
|
|
gtk_list_store_set (store, &iter, LOCALE_COL, name, DISPLAY_LOCALE_COL, display, -1);
|
|
g_hash_table_remove (user_langs, name);
|
|
g_free (name);
|
|
|
|
/* The rest of the languages */
|
|
g_hash_table_foreach (user_langs, (GHFunc) foreach_user_lang_cb, store);
|
|
|
|
/* And now the "Other…" selection */
|
|
gtk_list_store_append (store, &iter);
|
|
gtk_list_store_set (store, &iter, LOCALE_COL, NULL, DISPLAY_LOCALE_COL, _("Other…"), -1);
|
|
|
|
g_hash_table_destroy (user_langs);
|
|
}
|
|
|