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)
28 #include "talloc/talloc.h"
29 #include "ui/common/ui-system.h"
34 * pmenu_exit_cb - Callback helper that runs run menu.on_exit().
37 int pmenu_exit_cb(struct pmenu_item *item)
39 assert(item->pmenu->on_exit);
40 item->pmenu->on_exit(item->pmenu);
45 * pmenu_find_selected - Find the selected pmenu_item.
48 struct pmenu_item *pmenu_find_selected(struct pmenu *menu)
50 return pmenu_item_from_arg(item_userptr(current_item(menu->ncm)));
53 static int pmenu_post(struct nc_scr *scr)
56 struct pmenu *menu = pmenu_from_scr(scr);
58 result = post_menu(menu->ncm);
60 nc_scr_frame_draw(scr);
61 redrawwin(menu->scr.main_ncw);
62 wrefresh(menu->scr.main_ncw);
67 static int pmenu_unpost(struct nc_scr *scr)
69 return unpost_menu(pmenu_from_scr(scr)->ncm);
72 static void pmenu_resize(struct nc_scr *scr)
74 /* FIXME: menus can't be resized, need to recreate here */
79 static int pmenu_item_destructor(void *arg)
81 struct pmenu_item *item = arg;
87 * pmenu_item_create - Allocate and initialize a new pmenu_item instance.
89 * Returns a pointer the the initialized struct pmenu_item instance or NULL
90 * on error. The caller is responsible for calling talloc_free() for the
93 struct pmenu_item *pmenu_item_create(struct pmenu *menu, const char *name)
95 struct pmenu_item *item = talloc_zero(menu, struct pmenu_item);
97 item->i_sig = pb_item_sig;
99 item->nci = new_item(name, NULL);
106 talloc_set_destructor(item, pmenu_item_destructor);
108 set_item_userptr(item->nci, item);
113 void pmenu_item_insert(struct pmenu *menu, struct pmenu_item *item,
117 assert(index < menu->item_count);
118 assert(menu->items[index] == NULL);
119 assert(menu_items(menu->ncm) == NULL);
121 menu->items[index] = item->nci;
124 static int pmenu_item_get_index(const struct pmenu_item *item)
128 for (i = 0; i < item->pmenu->item_count; i++)
129 if (item->pmenu->items[i] == item->nci)
132 pb_log("%s: not found: %p %s\n", __func__, item,
133 (item ? item->nci->name.str : "(null)"));
138 * pmenu_move_cursor - Move the cursor.
139 * @req: An ncurses request or char to send to menu_driver().
142 static void pmenu_move_cursor(struct pmenu *menu, int req)
144 menu_driver(menu->ncm, req);
145 wrefresh(menu->scr.main_ncw);
149 * pmenu_process_key - Process a user keystroke.
152 static void pmenu_process_key(struct nc_scr *scr, int key)
154 struct pmenu *menu = pmenu_from_scr(scr);
155 struct pmenu_item *item = pmenu_find_selected(menu);
157 nc_scr_status_free(&menu->scr);
160 key = menu->hot_key(menu, item, key);
171 pmenu_move_cursor(menu, REQ_SCR_UPAGE);
174 pmenu_move_cursor(menu, REQ_SCR_DPAGE);
177 pmenu_move_cursor(menu, REQ_FIRST_ITEM);
180 pmenu_move_cursor(menu, REQ_LAST_ITEM);
183 pmenu_move_cursor(menu, REQ_UP_ITEM);
186 pmenu_move_cursor(menu, REQ_PREV_ITEM);
189 pmenu_move_cursor(menu, REQ_DOWN_ITEM);
192 pmenu_move_cursor(menu, REQ_NEXT_ITEM);
205 if (item->on_execute)
206 item->on_execute(item);
209 cui_show_sysinfo(cui_from_arg(scr->ui_ctx));
212 cui_show_config(cui_from_arg(scr->ui_ctx));
217 cui_show_help(cui_from_arg(scr->ui_ctx),
218 menu->help_title, menu->help_text);
221 menu_driver(menu->ncm, key);
227 * pmenu_grow - Grow the item array.
228 * @count: The count of new items.
230 * The item array must be disconnected prior to calling pmenu_grow().
231 * Returns the insert point index.
234 unsigned int pmenu_grow(struct pmenu *menu, unsigned int count)
238 assert(item_count(menu->ncm) == 0 && "not disconnected");
240 pb_log("%s: %u current + %u new = %u\n", __func__, menu->item_count,
241 count, menu->item_count + count);
243 /* Note that items array has a null terminator. */
245 menu->items = talloc_realloc(menu, menu->items, ITEM *,
246 menu->item_count + count + 1);
248 memmove(menu->items + menu->insert_pt + count,
249 menu->items + menu->insert_pt,
250 (menu->item_count - menu->insert_pt + 1) * sizeof(ITEM *));
252 memset(menu->items + menu->insert_pt, 0, count * sizeof(ITEM *));
254 tmp = menu->insert_pt;
255 menu->insert_pt += count;
256 menu->item_count += count;
262 * pmenu_remove - Remove an item from the item array.
264 * The item array must be disconnected prior to calling pmenu_remove()
267 int pmenu_remove(struct pmenu *menu, struct pmenu_item *item)
271 assert(item_count(menu->ncm) == 0 && "not disconnected");
273 assert(menu->item_count);
275 pb_log("%s: %u\n", __func__, menu->item_count);
277 index = pmenu_item_get_index(item);
284 /* Note that items array has a null terminator. */
289 memmove(&menu->items[index], &menu->items[index + 1],
290 (menu->item_count - index + 1) * sizeof(ITEM *));
291 menu->items = talloc_realloc(menu, menu->items, ITEM *,
292 menu->item_count + 1);
298 * pmenu_init - Allocate and initialize a new menu instance.
300 * Returns a pointer the the initialized struct pmenu instance or NULL on error.
301 * The caller is responsible for calling talloc_free() for the returned
305 struct pmenu *pmenu_init(void *ui_ctx, unsigned int item_count,
306 void (*on_exit)(struct pmenu *))
308 struct pmenu *menu = talloc_zero(ui_ctx, struct pmenu);
313 /* note items array has a null terminator */
315 menu->items = talloc_zero_array(menu, ITEM *, item_count + 1);
322 nc_scr_init(&menu->scr, pb_pmenu_sig, 0, ui_ctx, pmenu_process_key,
323 pmenu_post, pmenu_unpost, pmenu_resize);
325 menu->item_count = item_count;
326 menu->insert_pt = 0; /* insert from top */
327 menu->on_exit = on_exit;
333 * pmenu_setup - Create nc menu, setup nc windows.
337 int pmenu_setup(struct pmenu *menu)
341 menu->ncm = new_menu(menu->items);
344 pb_log("%s:%d: new_menu failed: %s\n", __func__, __LINE__,
349 set_menu_win(menu->ncm, menu->scr.main_ncw);
350 set_menu_sub(menu->ncm, menu->scr.sub_ncw);
352 /* Makes menu scrollable. */
353 set_menu_format(menu->ncm, LINES - nc_scr_frame_lines, 1);
355 set_menu_grey(menu->ncm, A_NORMAL);
361 * pmenu_delete - Delete a menu instance.
365 void pmenu_delete(struct pmenu *menu)
367 assert(menu->scr.sig == pb_pmenu_sig);
368 menu->scr.sig = pb_removed_sig;
370 unpost_menu(menu->ncm);
371 free_menu(menu->ncm);
372 delwin(menu->scr.sub_ncw);
373 delwin(menu->scr.main_ncw);