#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 < 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);

}