/*
 * dselect - Debian package maintenance user interface
 * bindings.h - keybindings class header file
 *
 * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
 *
 * This is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#ifndef BINDINGS_H
#define BINDINGS_H

struct keybindings {
	struct interpretation;

	struct orgbinding {
		int key;
		const char *action;
	};

	struct keyname {
		int key;
		const char *kname;
	};

	struct description {
		const char *action;
		const char *desc;
	};

	struct binding {
		binding *next;
		int key;
		const struct interpretation *interp;
		const char *desc;
	};

private:
	static const keyname keynames[];
	static const description descriptions[];

	binding *bindings;
	const description *iterate;
	const interpretation *interps;

	bool bind(int key, const char *action);

public:
	int name2key(const char *name);
	const char *key2name(int key);

	bool bind(const char *name, const char *action)
	{ return bind(name2key(name), action); }
	const interpretation *operator()(int key);
	varbuf find(const char *action);

	void describestart()
	{ iterate = descriptions; }
	/*
	 * Returns array, nullptr-terminated, first element is description,
	 * rest are key strings, caller must delete[] the array.
	 * A nullptr means end.
	 */
	const char **describenext();

	keybindings(const interpretation *ints, const orgbinding *orgbindings);
	~keybindings();
};

#include "pkglist.h"
#include "method.h"

struct keybindings::interpretation {
	const char *action;
	void (methodlist::*mfn)();
	void (packagelist::*pfn)();
	quitaction qa;
};

extern const keybindings::interpretation packagelist_kinterps[];
extern const keybindings::orgbinding packagelist_korgbindings[];

extern const keybindings::interpretation methodlist_kinterps[];
extern const keybindings::orgbinding methodlist_korgbindings[];

#ifndef CTRL
#define CTRL(x) ((x) - 'a' + 1)
#endif

#endif /* BINDINGS_H */
