2 * Copyright (C) 2009 Sony Computer Entertainment Inc.
3 * Copyright 2009 Sony Corp.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #if defined(HAVE_CONFIG_H)
30 #include "talloc/talloc.h"
31 #include "ui/common/ui-system.h"
36 * pmenu_exit_cb - Callback helper that runs run menu.on_exit().
39 int pmenu_exit_cb(struct pmenu_item *item)
41 assert(item->pmenu->on_exit);
42 item->pmenu->on_exit(item->pmenu);
47 * pmenu_find_selected - Find the selected pmenu_item.
50 struct pmenu_item *pmenu_find_selected(struct pmenu *menu)
52 return pmenu_item_from_arg(item_userptr(current_item(menu->ncm)));
55 static int pmenu_post(struct nc_scr *scr)
58 struct pmenu *menu = pmenu_from_scr(scr);
60 result = post_menu(menu->ncm);
62 nc_scr_frame_draw(scr);
63 redrawwin(menu->scr.main_ncw);
64 wrefresh(menu->scr.main_ncw);
69 static int pmenu_unpost(struct nc_scr *scr)
71 return unpost_menu(pmenu_from_scr(scr)->ncm);
74 static void pmenu_resize(struct nc_scr *scr)
76 /* FIXME: menus can't be resized, need to recreate here */
81 static int pmenu_item_destructor(void *arg)
83 struct pmenu_item *item = arg;
88 static const char *pmenu_item_label(struct pmenu_item *item, const char *name)
90 static int invalid_idx;
96 len = mbstowcs(NULL, name, 0);
98 /* if we have an invalid multibyte sequence, create an entirely
99 * new name, indicating that we had invalid input */
100 if (len == SIZE_MAX) {
101 name = talloc_asprintf(item, "!Invalid option %d\n",
106 tmp = talloc_array(item, wchar_t, len + 1);
107 mbstowcs(tmp, name, len + 1);
109 /* replace anything unprintable with U+FFFD REPLACEMENT CHARACTER */
110 for (i = 0; i < len; i++) {
111 if (!iswprint(tmp[i]))
115 len = wcstombs(NULL, tmp, 0);
116 label = talloc_array(item, char, len + 1);
117 wcstombs(label, tmp, len + 1);
119 pb_log("%s: %s\n", __func__, label);
126 * pmenu_item_create - Allocate and initialize a new pmenu_item instance.
128 * Returns a pointer the the initialized struct pmenu_item instance or NULL
129 * on error. The caller is responsible for calling talloc_free() for the
132 struct pmenu_item *pmenu_item_create(struct pmenu *menu, const char *name)
134 struct pmenu_item *item = talloc_zero(menu, struct pmenu_item);
137 label = pmenu_item_label(item, name);
139 item->i_sig = pb_item_sig;
141 item->nci = new_item(label, NULL);
148 talloc_set_destructor(item, pmenu_item_destructor);
150 set_item_userptr(item->nci, item);
155 void pmenu_item_insert(struct pmenu *menu, struct pmenu_item *item,
159 assert(index < menu->item_count);
160 assert(menu->items[index] == NULL);
161 assert(menu_items(menu->ncm) == NULL);
163 menu->items[index] = item->nci;
166 static int pmenu_item_get_index(const struct pmenu_item *item)
170 for (i = 0; i < item->pmenu->item_count; i++)
171 if (item->pmenu->items[i] == item->nci)
174 pb_log("%s: not found: %p %s\n", __func__, item,
175 (item ? item->nci->name.str : "(null)"));
180 * pmenu_move_cursor - Move the cursor.
181 * @req: An ncurses request or char to send to menu_driver().
184 static void pmenu_move_cursor(struct pmenu *menu, int req)
186 menu_driver(menu->ncm, req);
187 wrefresh(menu->scr.main_ncw);
191 * pmenu_process_key - Process a user keystroke.
194 static void pmenu_process_key(struct nc_scr *scr, int key)
196 struct pmenu *menu = pmenu_from_scr(scr);
197 struct pmenu_item *item = pmenu_find_selected(menu);
199 nc_scr_status_free(&menu->scr);
202 key = menu->hot_key(menu, item, key);
213 pmenu_move_cursor(menu, REQ_SCR_UPAGE);
216 pmenu_move_cursor(menu, REQ_SCR_DPAGE);
219 pmenu_move_cursor(menu, REQ_FIRST_ITEM);
222 pmenu_move_cursor(menu, REQ_LAST_ITEM);
225 pmenu_move_cursor(menu, REQ_UP_ITEM);
228 pmenu_move_cursor(menu, REQ_PREV_ITEM);
231 pmenu_move_cursor(menu, REQ_DOWN_ITEM);
234 pmenu_move_cursor(menu, REQ_NEXT_ITEM);
247 if (item->on_execute)
248 item->on_execute(item);
251 cui_show_sysinfo(cui_from_arg(scr->ui_ctx));
254 cui_show_config(cui_from_arg(scr->ui_ctx));
259 cui_show_help(cui_from_arg(scr->ui_ctx),
260 menu->help_title, menu->help_text);
263 menu_driver(menu->ncm, key);
269 * pmenu_grow - Grow the item array.
270 * @count: The count of new items.
272 * The item array must be disconnected prior to calling pmenu_grow().
273 * Returns the insert point index.
276 unsigned int pmenu_grow(struct pmenu *menu, unsigned int count)
280 assert(item_count(menu->ncm) == 0 && "not disconnected");
282 pb_log("%s: %u current + %u new = %u\n", __func__, menu->item_count,
283 count, menu->item_count + count);
285 /* Note that items array has a null terminator. */
287 menu->items = talloc_realloc(menu, menu->items, ITEM *,
288 menu->item_count + count + 1);
290 memmove(menu->items + menu->insert_pt + count,
291 menu->items + menu->insert_pt,
292 (menu->item_count - menu->insert_pt + 1) * sizeof(ITEM *));
294 memset(menu->items + menu->insert_pt, 0, count * sizeof(ITEM *));
296 tmp = menu->insert_pt;
297 menu->insert_pt += count;
298 menu->item_count += count;
304 * pmenu_remove - Remove an item from the item array.
306 * The item array must be disconnected prior to calling pmenu_remove()
309 int pmenu_remove(struct pmenu *menu, struct pmenu_item *item)
313 assert(item_count(menu->ncm) == 0 && "not disconnected");
315 assert(menu->item_count);
317 pb_log("%s: %u\n", __func__, menu->item_count);
319 index = pmenu_item_get_index(item);
326 /* Note that items array has a null terminator. */
331 memmove(&menu->items[index], &menu->items[index + 1],
332 (menu->item_count - index + 1) * sizeof(ITEM *));
333 menu->items = talloc_realloc(menu, menu->items, ITEM *,
334 menu->item_count + 1);
340 * pmenu_init - Allocate and initialize a new menu instance.
342 * Returns a pointer the the initialized struct pmenu instance or NULL on error.
343 * The caller is responsible for calling talloc_free() for the returned
347 struct pmenu *pmenu_init(void *ui_ctx, unsigned int item_count,
348 void (*on_exit)(struct pmenu *))
350 struct pmenu *menu = talloc_zero(ui_ctx, struct pmenu);
355 /* note items array has a null terminator */
357 menu->items = talloc_zero_array(menu, ITEM *, item_count + 1);
364 nc_scr_init(&menu->scr, pb_pmenu_sig, 0, ui_ctx, pmenu_process_key,
365 pmenu_post, pmenu_unpost, pmenu_resize);
367 menu->item_count = item_count;
368 menu->insert_pt = 0; /* insert from top */
369 menu->on_exit = on_exit;
375 * pmenu_setup - Create nc menu, setup nc windows.
379 int pmenu_setup(struct pmenu *menu)
383 menu->ncm = new_menu(menu->items);
386 pb_log("%s:%d: new_menu failed: %s\n", __func__, __LINE__,
391 set_menu_win(menu->ncm, menu->scr.main_ncw);
392 set_menu_sub(menu->ncm, menu->scr.sub_ncw);
394 /* Makes menu scrollable. */
395 set_menu_format(menu->ncm, LINES - nc_scr_frame_lines, 1);
397 set_menu_grey(menu->ncm, A_NORMAL);
403 * pmenu_delete - Delete a menu instance.
407 void pmenu_delete(struct pmenu *menu)
409 assert(menu->scr.sig == pb_pmenu_sig);
410 menu->scr.sig = pb_removed_sig;
412 unpost_menu(menu->ncm);
413 free_menu(menu->ncm);
414 delwin(menu->scr.sub_ncw);
415 delwin(menu->scr.main_ncw);