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