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
28 #include "talloc/talloc.h"
29 #include "ui/common/ui-system.h"
33 * pmenu_exit_cb - Callback helper that runs run menu.on_exit().
36 int pmenu_exit_cb(struct pmenu_item *item)
38 assert(item->pmenu->on_exit);
39 item->pmenu->on_exit(item->pmenu);
44 * pmenu_find_selected - Find the selected pmenu_item.
47 struct pmenu_item *pmenu_find_selected(struct pmenu *menu)
49 return pmenu_item_from_arg(item_userptr(current_item(menu->ncm)));
52 static int pmenu_post(struct nc_scr *scr)
55 struct pmenu *menu = pmenu_from_scr(scr);
57 result = post_menu(menu->ncm);
59 nc_scr_frame_draw(scr);
60 redrawwin(menu->scr.main_ncw);
61 wrefresh(menu->scr.main_ncw);
66 static int pmenu_unpost(struct nc_scr *scr)
68 return unpost_menu(pmenu_from_scr(scr)->ncm);
71 static void pmenu_resize(struct nc_scr *scr)
73 /* FIXME: menus can't be resized, need to recreate here */
79 * pmenu_item_init - Allocate and initialize a new pmenu_item instance.
81 * Returns a pointer the the initialized struct pmenu_item instance or NULL
82 * on error. The caller is responsible for calling talloc_free() for the
86 struct pmenu_item *pmenu_item_alloc(struct pmenu *menu)
88 /* Items go with the menu, not the pointer array. */
90 struct pmenu_item *i = talloc_zero(menu, struct pmenu_item);
95 struct pmenu_item *pmenu_item_setup(struct pmenu *menu, struct pmenu_item *i,
96 unsigned int index, const char *name)
104 i->i_sig = pb_item_sig;
106 i->nci = new_item(name, NULL);
113 set_item_userptr(i->nci, i);
115 menu->items[index] = i->nci;
120 static int pmenu_item_get_index(const struct pmenu_item *item)
124 for (i = 0; i < item->pmenu->item_count; i++)
125 if (item->pmenu->items[i] == item->nci)
128 pb_log("%s: not found: %p %s\n", __func__, item,
129 (item ? item->nci->name.str : "(null)"));
134 * pmenu_item_replace - Replace the menu item with a new one.
136 * Use this routine to change a menu item's text.
139 int pmenu_item_replace(struct pmenu_item *i, const char *name)
149 index = pmenu_item_get_index(i);
152 assert(0 && "get_index failed");
156 nci = new_item(name, NULL);
159 assert(0 && "new_item failed");
163 set_item_userptr(nci, i);
165 menu->scr.unpost(&menu->scr);
166 set_menu_items(menu->ncm, NULL);
168 // FIXME: need to assure item name is a talloc string.
169 /* talloc_free((char *)item_name(i->nci)); */
172 menu->items[index] = nci;
175 set_menu_items(menu->ncm, menu->items);
176 menu->scr.post(&menu->scr);
182 * pmenu_move_cursor - Move the cursor.
183 * @req: An ncurses request or char to send to menu_driver().
186 static void pmenu_move_cursor(struct pmenu *menu, int req)
188 menu_driver(menu->ncm, req);
189 wrefresh(menu->scr.main_ncw);
193 * pmenu_process_key - Process a user keystroke.
196 static void pmenu_process_key(struct nc_scr *scr, int key)
198 struct pmenu *menu = pmenu_from_scr(scr);
199 struct pmenu_item *item = pmenu_find_selected(menu);
201 nc_scr_status_free(&menu->scr);
204 key = menu->hot_key(menu, item, key);
215 pmenu_move_cursor(menu, REQ_SCR_UPAGE);
218 pmenu_move_cursor(menu, REQ_SCR_DPAGE);
221 pmenu_move_cursor(menu, REQ_FIRST_ITEM);
224 pmenu_move_cursor(menu, REQ_LAST_ITEM);
227 pmenu_move_cursor(menu, REQ_UP_ITEM);
230 pmenu_move_cursor(menu, REQ_DOWN_ITEM);
242 if (item->on_execute)
243 item->on_execute(item);
246 menu_driver(menu->ncm, key);
252 * pmenu_grow - Grow the item array.
253 * @count: The count of new items.
255 * The item array must be disconnected prior to calling pmenu_grow().
256 * Returns the insert point index.
259 unsigned int pmenu_grow(struct pmenu *menu, unsigned int count)
263 assert(item_count(menu->ncm) == 0 && "not disconnected");
265 pb_log("%s: %u current + %u new = %u\n", __func__, menu->item_count,
266 count, menu->item_count + count);
268 /* Note that items array has a null terminator. */
270 menu->items = talloc_realloc(menu, menu->items, ITEM *,
271 menu->item_count + count + 1);
273 memmove(menu->items + menu->insert_pt + count,
274 menu->items + menu->insert_pt,
275 (menu->item_count - menu->insert_pt + 1) * sizeof(ITEM *));
277 memset(menu->items + menu->insert_pt, 0, count * sizeof(ITEM *));
279 tmp = menu->insert_pt;
280 menu->insert_pt += count;
281 menu->item_count += count;
287 * pmenu_remove - Remove an item from the item array.
289 * The item array must be disconnected prior to calling pmenu_remove()
292 int pmenu_remove(struct pmenu *menu, struct pmenu_item *item)
296 assert(item_count(menu->ncm) == 0 && "not disconnected");
298 assert(menu->item_count);
300 pb_log("%s: %u\n", __func__, menu->item_count);
302 index = pmenu_item_get_index(item);
307 free_item(item->nci);
310 /* Note that items array has a null terminator. */
315 memmove(&menu->items[index], &menu->items[index + 1],
316 (menu->item_count - index + 1) * sizeof(ITEM *));
317 menu->items = talloc_realloc(menu, menu->items, ITEM *,
318 menu->item_count + 1);
324 * pmenu_init - Allocate and initialize a new menu instance.
326 * Returns a pointer the the initialized struct pmenu instance or NULL on error.
327 * The caller is responsible for calling talloc_free() for the returned
331 struct pmenu *pmenu_init(void *ui_ctx, unsigned int item_count,
332 void (*on_exit)(struct pmenu *))
334 struct pmenu *menu = talloc_zero(ui_ctx, struct pmenu);
339 /* note items array has a null terminator */
341 menu->items = talloc_zero_array(menu, ITEM *, item_count + 1);
348 nc_scr_init(&menu->scr, pb_pmenu_sig, 0, ui_ctx, pmenu_process_key,
349 pmenu_post, pmenu_unpost, pmenu_resize);
351 menu->item_count = item_count;
352 menu->insert_pt = 0; /* insert from top */
353 menu->on_exit = on_exit;
359 * pmenu_setup - Create nc menu, setup nc windows.
363 int pmenu_setup(struct pmenu *menu)
367 menu->ncm = new_menu(menu->items);
370 pb_log("%s:%d: new_menu failed: %s\n", __func__, __LINE__,
375 set_menu_win(menu->ncm, menu->scr.main_ncw);
376 set_menu_sub(menu->ncm, menu->scr.sub_ncw);
378 /* Makes menu scrollable. */
379 set_menu_format(menu->ncm, LINES - nc_scr_frame_lines, 1);
385 * pmenu_delete - Delete a menu instance.
389 void pmenu_delete(struct pmenu *menu)
393 assert(menu->scr.sig == pb_pmenu_sig);
394 menu->scr.sig = pb_removed_sig;
396 for (i = item_count(menu->ncm); i; i--)
397 free_item(menu->items[i - 1]);
399 free_menu(menu->ncm);
400 delwin(menu->scr.sub_ncw);
401 delwin(menu->scr.main_ncw);