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
26 #include "talloc/talloc.h"
27 #include "ui/common/ui-system.h"
31 * pmenu_exit_cb - Callback helper that runs run menu.on_exit().
34 int pmenu_exit_cb(struct pmenu_item *item)
36 assert(item->pmenu->on_exit);
37 item->pmenu->on_exit(item->pmenu);
42 * pmenu_find_selected - Find the selected pmenu_item.
45 struct pmenu_item *pmenu_find_selected(struct pmenu *menu)
47 return pmenu_item_from_arg(item_userptr(current_item(menu->ncm)));
50 static int pmenu_post(struct nc_scr *scr)
53 struct pmenu *menu = pmenu_from_scr(scr);
55 result = post_menu(menu->ncm);
57 nc_scr_frame_draw(scr);
58 redrawwin(menu->scr.main_ncw);
59 wrefresh(menu->scr.main_ncw);
64 static int pmenu_unpost(struct nc_scr *scr)
66 return unpost_menu(pmenu_from_scr(scr)->ncm);
69 static void pmenu_resize(struct nc_scr *scr)
71 /* FIXME: menus can't be resized, need to recreate here */
77 * pmenu_item_init - Allocate and initialize a new pmenu_item instance.
79 * Returns a pointer the the initialized struct pmenu_item instance or NULL
80 * on error. The caller is responsible for calling talloc_free() for the
84 struct pmenu_item *pmenu_item_alloc(struct pmenu *menu)
86 /* Items go with the menu, not the pointer array. */
88 struct pmenu_item *i = talloc_zero(menu, struct pmenu_item);
93 struct pmenu_item *pmenu_item_setup(struct pmenu *menu, struct pmenu_item *i,
94 unsigned int index, const char *name)
101 i->i_sig = pb_item_sig;
103 i->nci = new_item(name, NULL);
110 set_item_userptr(i->nci, i);
112 menu->items[index] = i->nci;
118 * pmenu_move_cursor - Move the cursor.
119 * @req: An ncurses request or char to send to menu_driver().
122 static void pmenu_move_cursor(struct pmenu *menu, int req)
124 menu_driver(menu->ncm, req);
125 wrefresh(menu->scr.main_ncw);
129 * pmenu_process_key - Process a user keystroke.
132 static void pmenu_process_key(struct nc_scr *scr)
134 struct pmenu *menu = pmenu_from_scr(scr);
135 struct pmenu_item *item = pmenu_find_selected(menu);
137 nc_scr_status_free(&menu->scr);
145 /* DBGS("%d (%o)\n", c, c); */
148 c = menu->hot_key(menu, item, c);
158 pmenu_move_cursor(menu, REQ_SCR_UPAGE);
161 pmenu_move_cursor(menu, REQ_SCR_DPAGE);
164 pmenu_move_cursor(menu, REQ_FIRST_ITEM);
167 pmenu_move_cursor(menu, REQ_LAST_ITEM);
170 pmenu_move_cursor(menu, REQ_UP_ITEM);
174 pmenu_move_cursor(menu, REQ_DOWN_ITEM);
182 DBGS("on_open: %p\n", menu->on_open);
188 if (item->on_execute)
189 item->on_execute(item);
192 menu_driver(menu->ncm, c);
199 * pmenu_grow - Grow the item array.
200 * @count: The count of new items.
202 * The item array must be disconnected prior to calling pmenu_grow().
203 * Returns the insert point index.
206 unsigned int pmenu_grow(struct pmenu *menu, unsigned int count)
210 assert(item_count(menu->ncm) == 0 && "not disconnected");
212 pb_log("%s: %u current + %u new = %u\n", __func__, menu->item_count,
213 count, menu->item_count + count);
215 /* Note that items array has a null terminator. */
217 menu->items = talloc_realloc(menu, menu->items, ITEM *,
218 menu->item_count + count + 1);
220 memmove(menu->items + menu->insert_pt + count,
221 menu->items + menu->insert_pt,
222 (menu->item_count - menu->insert_pt + 1) * sizeof(ITEM *));
224 memset(menu->items + menu->insert_pt, 0, count * sizeof(ITEM *));
226 tmp = menu->insert_pt;
227 menu->insert_pt += count;
228 menu->item_count += count;
233 static int pmenu_item_get_index(const struct pmenu_item *item)
237 for (i = 0; i < item->pmenu->item_count; i++)
238 if (item->pmenu->items[i] == item->nci)
241 pb_log("%s: not found: %p %s\n", __func__, item,
242 (item ? item->nci->name.str : "(null)"));
247 * pmenu_remove - Remove an item from the item array.
249 * The item array must be disconnected prior to calling pmenu_remove()
252 int pmenu_remove(struct pmenu *menu, struct pmenu_item *item)
256 assert(item_count(menu->ncm) == 0 && "not disconnected");
258 assert(menu->item_count);
260 pb_log("%s: %u\n", __func__, menu->item_count);
262 index = pmenu_item_get_index(item);
267 /* Note that items array has a null terminator. */
272 memmove(&menu->items[index], &menu->items[index + 1],
273 (menu->item_count - index + 1) * sizeof(ITEM *));
274 menu->items = talloc_realloc(menu, menu->items, ITEM *,
275 menu->item_count + 1);
281 * pmenu_init - Allocate and initialize a new menu instance.
283 * Returns a pointer the the initialized struct pmenu instance or NULL on error.
284 * The caller is responsible for calling talloc_free() for the returned
288 struct pmenu *pmenu_init(void *ui_ctx, unsigned int item_count,
289 void (*on_exit)(struct pmenu *))
291 struct pmenu *menu = talloc_zero(ui_ctx, struct pmenu);
296 /* note items array has a null terminator */
298 menu->items = talloc_zero_array(menu, ITEM *, item_count + 1);
305 nc_scr_init(&menu->scr, pb_pmenu_sig, 0, ui_ctx, pmenu_process_key,
306 pmenu_post, pmenu_unpost, pmenu_resize);
308 menu->item_count = item_count;
309 menu->insert_pt = 0; /* insert from top */
310 menu->on_exit = on_exit;
316 * pmenu_setup - Create nc menu, setup nc windows.
320 int pmenu_setup(struct pmenu *menu)
324 menu->ncm = new_menu(menu->items);
327 pb_log("%s:%d: new_menu failed: %s\n", __func__, __LINE__,
332 set_menu_win(menu->ncm, menu->scr.main_ncw);
333 set_menu_sub(menu->ncm, menu->scr.sub_ncw);
335 /* Makes menu scrollable. */
336 set_menu_format(menu->ncm, LINES - nc_scr_frame_lines, 1);
342 * pmenu_delete - Delete a menu instance.
346 void pmenu_delete(struct pmenu *menu)
350 assert(menu->scr.sig == pb_pmenu_sig);
351 menu->scr.sig = pb_removed_sig;
353 for (i = item_count(menu->ncm); i; i--)
354 free_item(menu->items[i]);
356 free_menu(menu->ncm);
357 delwin(menu->scr.sub_ncw);
358 delwin(menu->scr.main_ncw);