mirror of
https://github.com/alsa-project/alsa-utils
synced 2024-11-14 05:05:43 +01:00
92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
#include "menu_widget.h"
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#include "colors.h"
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#include "utils.h"
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#include "bindings.h"
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/* Returns
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* - KEY_CANCEL: close is requested
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* - KEY_ENTER: item is selected
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* - -1: no action
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*/
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int menu_widget_handle_key(MENU *menu, int key)
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{
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MEVENT m;
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switch (key) {
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case 27:
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case KEY_CANCEL:
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case 'q':
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case 'Q':
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return KEY_CANCEL;
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case '\n':
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case '\r':
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case KEY_ENTER:
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return KEY_ENTER;
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case KEY_MOUSE:
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switch (menu_driver(menu, KEY_MOUSE)) {
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case E_UNKNOWN_COMMAND:
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/* If you double-click an item a REQ_TOGGLE_ITEM is generated
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* and E_UNKNOWN_COMMAND is returned. (man menu_driver) */
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return KEY_ENTER;
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case E_REQUEST_DENIED:
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/* If menu did not handle KEY_MOUSE is has to be removed from
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* input queue to prevent an infinite loop. */
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key = wgetch(menu_win(menu));
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if (key == KEY_MOUSE) {
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if (getmouse(&m) == ERR)
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return -1;
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if (m.bstate & (BUTTON4_PRESSED|BUTTON4_CLICKED))
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menu_driver(menu, REQ_UP_ITEM);
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#if NCURSES_MOUSE_VERSION > 1
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else if (m.bstate & (BUTTON5_PRESSED|BUTTON5_CLICKED))
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menu_driver(menu, REQ_DOWN_ITEM);
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#endif
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else
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return KEY_CANCEL;
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}
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else if (key > 0)
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ungetch(key);
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}
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return -1;
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default:
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if (key < (int)ARRAY_SIZE(textbox_bindings)) {
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key = textbox_bindings[key];
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if (key >= CMD_TEXTBOX___MIN_MENU_COMMAND &&
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key <= CMD_TEXTBOX___MAX_MENU_COMMAND)
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menu_driver(menu, key + KEY_MAX);
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}
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return -1;
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}
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}
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void menu_widget_create(struct widget *widget, MENU *menu, const char *title)
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{
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int rows, columns;
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if (menu)
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unpost_menu(menu);
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if (screen_lines < 3 || screen_cols < 10) {
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widget->close();
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beep();
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return;
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}
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scale_menu(menu, &rows, &columns);
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rows += 2;
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columns += 2;
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if (rows > screen_lines)
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rows = screen_lines;
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if (columns > screen_cols)
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columns = screen_cols;
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widget_init(widget, rows, columns, SCREEN_CENTER, SCREEN_CENTER,
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attrs.menu, WIDGET_BORDER | WIDGET_SUBWINDOW);
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mvwprintw(widget->window, 0, (columns - 2 - get_mbs_width(title)) / 2, " %s ", title);
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set_menu_win(menu, widget->window);
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set_menu_sub(menu, widget->subwindow);
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post_menu(menu);
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}
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