--- /dev/null
+/*
+ * Copyright (C) 2013 IBM Corporation
+ *
+ * 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; version 2 of the License.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#if defined(HAVE_CONFIG_H)
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <talloc/talloc.h>
+#include <types/types.h>
+#include <log/log.h>
+#include <i18n/i18n.h>
+#include <pb-config/pb-config.h>
+
+#include "nc-cui.h"
+#include "nc-lang.h"
+#include "nc-widgets.h"
+
+#define N_FIELDS 4
+
+static struct lang {
+ const char *name;
+ const wchar_t *label;
+} languages[] = {
+ { "en_US.utf8", L"English"},
+};
+
+struct lang_screen {
+ struct nc_scr scr;
+ struct cui *cui;
+ struct nc_widgetset *widgetset;
+ WINDOW *pad;
+
+ bool exit;
+ void (*on_exit)(struct cui *);
+
+ int scroll_y;
+
+ int label_x;
+ int field_x;
+
+ struct {
+ struct nc_widget_select *lang_f;
+ struct nc_widget_label *lang_l;
+
+ struct nc_widget_button *ok_b;
+ struct nc_widget_button *cancel_b;
+ } widgets;
+};
+
+static struct lang_screen *lang_screen_from_scr(struct nc_scr *scr)
+{
+ struct lang_screen *lang_screen;
+
+ assert(scr->sig == pb_lang_screen_sig);
+ lang_screen = (struct lang_screen *)
+ ((char *)scr - (size_t)&((struct lang_screen *)0)->scr);
+ assert(lang_screen->scr.sig == pb_lang_screen_sig);
+ return lang_screen;
+}
+
+static void pad_refresh(struct lang_screen *screen)
+{
+ int y, x, rows, cols;
+
+ getmaxyx(screen->scr.sub_ncw, rows, cols);
+ getbegyx(screen->scr.sub_ncw, y, x);
+
+ prefresh(screen->pad, screen->scroll_y, 0, y, x, rows, cols);
+}
+
+static void lang_screen_process_key(struct nc_scr *scr, int key)
+{
+ struct lang_screen *screen = lang_screen_from_scr(scr);
+ bool handled;
+
+ handled = widgetset_process_key(screen->widgetset, key);
+
+ if (!handled) {
+ switch (key) {
+ case 'x':
+ case 27: /* esc */
+ screen->exit = true;
+ break;
+ }
+ }
+
+ if (screen->exit) {
+ screen->on_exit(screen->cui);
+
+ } else if (handled) {
+ pad_refresh(screen);
+ }
+}
+
+static void lang_screen_resize(struct nc_scr *scr)
+{
+ struct lang_screen *screen = lang_screen_from_scr(scr);
+ (void)screen;
+}
+
+static int lang_screen_post(struct nc_scr *scr)
+{
+ struct lang_screen *screen = lang_screen_from_scr(scr);
+ widgetset_post(screen->widgetset);
+ nc_scr_frame_draw(scr);
+ redrawwin(scr->main_ncw);
+ wrefresh(screen->scr.main_ncw);
+ pad_refresh(screen);
+ return 0;
+}
+
+static int lang_screen_unpost(struct nc_scr *scr)
+{
+ struct lang_screen *screen = lang_screen_from_scr(scr);
+ widgetset_unpost(screen->widgetset);
+ return 0;
+}
+
+struct nc_scr *lang_screen_scr(struct lang_screen *screen)
+{
+ return &screen->scr;
+}
+
+static int lang_process_form(struct lang_screen *screen)
+{
+ struct config *config;
+ struct lang *lang;
+ int idx, rc;
+
+ config = config_copy(screen, screen->cui->config);
+
+ idx = widget_select_get_value(screen->widgets.lang_f);
+
+ /* Option -1 ("Unknown") can only be populated from the current
+ * language, so there's no change here */
+ if (idx == -1)
+ return 0;
+
+ lang = &languages[idx];
+
+ if (config->lang && !strcmp(lang->name, config->lang))
+ return 0;
+
+ config->lang = talloc_strdup(screen, lang->name);
+
+ rc = cui_send_config(screen->cui, config);
+ talloc_free(config);
+
+ if (rc)
+ pb_log("cui_send_config failed!\n");
+ else
+ pb_debug("config sent!\n");
+
+ return 0;
+}
+
+static void ok_click(void *arg)
+{
+ struct lang_screen *screen = arg;
+ if (lang_process_form(screen))
+ /* errors are written to the status line, so we'll need
+ * to refresh */
+ wrefresh(screen->scr.main_ncw);
+ else
+ screen->exit = true;
+}
+
+static void cancel_click(void *arg)
+{
+ struct lang_screen *screen = arg;
+ screen->exit = true;
+}
+
+static int layout_pair(struct lang_screen *screen, int y,
+ struct nc_widget_label *label,
+ struct nc_widget *field)
+{
+ struct nc_widget *label_w = widget_label_base(label);
+ widget_move(label_w, y, screen->label_x);
+ widget_move(field, y, screen->field_x);
+ return max(widget_height(label_w), widget_height(field));
+}
+
+static void lang_screen_layout_widgets(struct lang_screen *screen)
+{
+ int y;
+
+ y = 1;
+
+ y += layout_pair(screen, y, screen->widgets.lang_l,
+ widget_select_base(screen->widgets.lang_f));
+
+ y += 1;
+
+ widget_move(widget_button_base(screen->widgets.ok_b),
+ y, screen->field_x);
+ widget_move(widget_button_base(screen->widgets.cancel_b),
+ y, screen->field_x + 10);
+}
+
+static void lang_screen_setup_empty(struct lang_screen *screen)
+{
+ widget_new_label(screen->widgetset, 2, screen->field_x,
+ _("Waiting for configuration data..."));
+ screen->widgets.cancel_b = widget_new_button(screen->widgetset,
+ 4, screen->field_x, 6, _("Cancel"),
+ cancel_click, screen);
+}
+
+
+static void lang_screen_setup_widgets(struct lang_screen *screen,
+ const struct config *config)
+{
+ struct nc_widgetset *set = screen->widgetset;
+ unsigned int i;
+ bool found;
+
+ build_assert(sizeof(screen->widgets) / sizeof(struct widget *)
+ == N_FIELDS);
+
+ screen->widgets.lang_l = widget_new_label(set, 0, 0, _("Language"));
+ screen->widgets.lang_f = widget_new_select(set, 0, 0, 50);
+
+ found = false;
+
+ for (i = 0; i < ARRAY_SIZE(languages); i++) {
+ struct lang *lang = &languages[i];
+ bool selected;
+ char *label;
+ int len;
+
+ len = wcstombs(NULL, lang->label, 0);
+ assert(len >= 0);
+ label = talloc_array(screen, char, len + 1);
+ wcstombs(label, lang->label, len + 1);
+
+ selected = config->lang && !strcmp(lang->name, config->lang);
+ found |= selected;
+
+ widget_select_add_option(screen->widgets.lang_f, i,
+ label, selected);
+ }
+
+ if (!found && config->lang) {
+ char *label = talloc_asprintf(screen,
+ _("Unknown language '%s'"), config->lang);
+ widget_select_add_option(screen->widgets.lang_f, -1,
+ label, true);
+ }
+
+ screen->widgets.ok_b = widget_new_button(set, 0, 0, 6, _("OK"),
+ ok_click, screen);
+ screen->widgets.cancel_b = widget_new_button(set, 0, 0, 6, _("Cancel"),
+ cancel_click, screen);
+}
+
+static void lang_screen_widget_focus(struct nc_widget *widget, void *arg)
+{
+ struct lang_screen *screen = arg;
+ int w_y, s_max;
+
+ w_y = widget_y(widget) + widget_focus_y(widget);
+ s_max = getmaxy(screen->scr.sub_ncw) - 1;
+
+ if (w_y < screen->scroll_y)
+ screen->scroll_y = w_y;
+
+ else if (w_y + screen->scroll_y + 1 > s_max)
+ screen->scroll_y = 1 + w_y - s_max;
+
+ else
+ return;
+
+ pad_refresh(screen);
+}
+
+static void lang_screen_draw(struct lang_screen *screen,
+ const struct config *config)
+{
+ bool repost = false;
+ int height;
+
+ height = ARRAY_SIZE(languages) + 4;
+ if (!screen->pad || getmaxy(screen->pad) < height) {
+ if (screen->pad)
+ delwin(screen->pad);
+ screen->pad = newpad(height, COLS);
+ }
+
+ if (screen->widgetset) {
+ widgetset_unpost(screen->widgetset);
+ talloc_free(screen->widgetset);
+ repost = true;
+ }
+
+ screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
+ screen->pad);
+ widgetset_set_widget_focus(screen->widgetset,
+ lang_screen_widget_focus, screen);
+
+ if (!config) {
+ lang_screen_setup_empty(screen);
+ } else {
+ lang_screen_setup_widgets(screen, config);
+ lang_screen_layout_widgets(screen);
+ }
+
+ if (repost)
+ widgetset_post(screen->widgetset);
+}
+
+void lang_screen_update(struct lang_screen *screen,
+ const struct config *config)
+{
+ lang_screen_draw(screen, config);
+ pad_refresh(screen);
+}
+
+static int lang_screen_destroy(void *arg)
+{
+ struct lang_screen *screen = arg;
+ if (screen->pad)
+ delwin(screen->pad);
+ return 0;
+}
+
+struct lang_screen *lang_screen_init(struct cui *cui,
+ const struct config *config,
+ void (*on_exit)(struct cui *))
+{
+ struct lang_screen *screen;
+
+ screen = talloc_zero(cui, struct lang_screen);
+ talloc_set_destructor(screen, lang_screen_destroy);
+ nc_scr_init(&screen->scr, pb_lang_screen_sig, 0,
+ cui, lang_screen_process_key,
+ lang_screen_post, lang_screen_unpost,
+ lang_screen_resize);
+
+ screen->cui = cui;
+ screen->on_exit = on_exit;
+ screen->label_x = 2;
+ screen->field_x = 17;
+
+ screen->scr.frame.ltitle = talloc_strdup(screen,
+ _("Petitboot Language Selection"));
+ screen->scr.frame.rtitle = NULL;
+ screen->scr.frame.help = talloc_strdup(screen,
+ _("tab=next, shift+tab=previous, x=exit, h=help"));
+ nc_scr_frame_draw(&screen->scr);
+
+ scrollok(screen->scr.sub_ncw, true);
+
+ lang_screen_draw(screen, config);
+
+ return screen;
+}
projects / petitboot / blobdiff