ui/ncurses: Add language selector & support for language changes

[petitboot] / ui / ncurses / nc-cui.c

diff --git a/ui/ncurses/nc-cui.c b/ui/ncurses/nc-cui.c
index 3c14f21bea32f55fc98d4cd433eba27fd6d0a66f..4f03409fac2ed81723ca7e3dcdd607f6f30a0a78 100644 (file)
--- a/ui/ncurses/nc-cui.c
+++ b/ui/ncurses/nc-cui.c
@@ -38,10 +38,13 @@
 #include "nc-boot-editor.h"
 #include "nc-config.h"
 #include "nc-sysinfo.h"
+#include "nc-lang.h"
 #include "nc-helpscreen.h"
 
 extern const struct help_text main_menu_help_text;
 
+static struct pmenu *main_menu_init(struct cui *cui);
+
 static void cui_start(void)
 {
        initscr();                      /* Initialize ncurses. */
@@ -265,6 +268,19 @@ void cui_show_config(struct cui *cui)
        cui_set_current(cui, config_screen_scr(cui->config_screen));
 }
 
+static void cui_lang_exit(struct cui *cui)
+{
+       cui_set_current(cui, &cui->main->scr);
+       talloc_free(cui->lang_screen);
+       cui->lang_screen = NULL;
+}
+
+void cui_show_lang(struct cui *cui)
+{
+       cui->lang_screen = lang_screen_init(cui, cui->config, cui_lang_exit);
+       cui_set_current(cui, lang_screen_scr(cui->lang_screen));
+}
+
 static void cui_help_exit(struct cui *cui)
 {
        cui_set_current(cui, help_screen_return_scr(cui->help_screen));
@@ -619,11 +635,41 @@ static void cui_update_sysinfo(struct system_info *sysinfo, void *arg)
        cui_update_mm_title(cui);
 }
 
+static void cui_update_language(struct cui *cui, char *lang)
+{
+       bool repost_menu;
+       char *cur_lang;
+
+       cur_lang = setlocale(LC_ALL, NULL);
+       if (cur_lang && !strcmp(cur_lang, lang))
+               return;
+
+       setlocale(LC_ALL, lang);
+
+       /* we'll need to update the menu: drop all items and repopulate */
+       repost_menu = cui->current == &cui->main->scr;
+       if (repost_menu)
+               nc_scr_unpost(cui->current);
+
+       talloc_free(cui->main);
+       cui->main = main_menu_init(cui);
+
+       if (repost_menu) {
+               cui->current = &cui->main->scr;
+               nc_scr_post(cui->current);
+       }
+
+       discover_client_enumerate(cui->client);
+}
+
 static void cui_update_config(struct config *config, void *arg)
 {
        struct cui *cui = cui_from_arg(arg);
        cui->config = talloc_steal(cui, config);
 
+       if (config->lang)
+               cui_update_language(cui, config->lang);
+
        if (cui->config_screen)
                config_screen_update(cui->config_screen, config, cui->sysinfo);
 
@@ -655,6 +701,12 @@ static int menu_config_execute(struct pmenu_item *item)
        return 0;
 }
 
+static int menu_lang_execute(struct pmenu_item *item)
+{
+       cui_show_lang(cui_from_item(item));
+       return 0;
+}
+
 static int menu_reinit_execute(struct pmenu_item *item)
 {
        cui_send_reinit(cui_from_item(item));
@@ -670,7 +722,7 @@ static struct pmenu *main_menu_init(struct cui *cui)
        struct pmenu *m;
        int result;
 
-       m = pmenu_init(cui, 5, cui_on_exit);
+       m = pmenu_init(cui, 6, cui_on_exit);
        if (!m) {
                pb_log("%s: failed\n", __func__);
                return NULL;
@@ -682,7 +734,7 @@ static struct pmenu *main_menu_init(struct cui *cui)
                "Petitboot (" PACKAGE_VERSION ")");
        m->scr.frame.rtitle = NULL;
        m->scr.frame.help = talloc_strdup(m,
-               _("Enter=accept, e=edit, n=new, x=exit, h=help"));
+               _("Enter=accept, e=edit, n=new, x=exit, l=language, h=help"));
        m->scr.frame.status = talloc_strdup(m, _("Welcome to Petitboot"));
 
        /* add a separator */
@@ -699,13 +751,18 @@ static struct pmenu *main_menu_init(struct cui *cui)
        i->on_execute = menu_config_execute;
        pmenu_item_insert(m, i, 2);
 
+       /* this label isn't translated, so we don't want a gettext() here */
+       i = pmenu_item_create(m, "Language");
+       i->on_execute = menu_lang_execute;
+       pmenu_item_insert(m, i, 3);
+
        i = pmenu_item_create(m, _("Rescan devices"));
        i->on_execute = menu_reinit_execute;
-       pmenu_item_insert(m, i, 3);
+       pmenu_item_insert(m, i, 4);
 
        i = pmenu_item_create(m, _("Exit to shell"));
        i->on_execute = pmenu_exit_cb;
-       pmenu_item_insert(m, i, 4);
+       pmenu_item_insert(m, i, 5);
 
        result = pmenu_setup(m);