path: root/src/screen.c

/*
 * $Id$
 *
 * (c) 2004 by Kalle Wallin <kaw@linux.se>
 *
 * This program 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 program 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include "screen.h"
#include "screen_utils.h"
#include "config.h"
#include "ncmpc.h"
#include "support.h"
#include "mpdclient.h"
#include "utils.h"
#include "command.h"
#include "options.h"
#include "colors.h"
#include "strfsong.h"
#include "wreadln.h"

#include <stdlib.h>
#include <unistd.h>
#include <stdarg.h>
#include <string.h>
#include <time.h>
#include <locale.h>

#define SCREEN_PLAYLIST_ID     0
#define SCREEN_BROWSE_ID       1
#define SCREEN_ARTIST_ID       2
#define SCREEN_HELP_ID         100
#define SCREEN_KEYDEF_ID       101
#define SCREEN_CLOCK_ID        102
#define SCREEN_SEARCH_ID       103
#define SCREEN_LYRICS_ID	   104



/* screens */
extern screen_functions_t *get_screen_playlist(void);
extern screen_functions_t *get_screen_browse(void);
extern screen_functions_t *get_screen_help(void);
extern screen_functions_t *get_screen_search(void);
extern screen_functions_t *get_screen_artist(void);
extern screen_functions_t *get_screen_keydef(void);
extern screen_functions_t *get_screen_clock(void);
extern screen_functions_t *get_screen_lyrics(void);

typedef screen_functions_t * (*screen_get_mode_functions_fn_t) (void);

typedef struct
{
	gint id;
	const gchar *name;
	screen_get_mode_functions_fn_t get_mode_functions;
} screen_mode_info_t;


static screen_mode_info_t screens[] = {
	{ SCREEN_PLAYLIST_ID, "playlist", get_screen_playlist },
	{ SCREEN_BROWSE_ID,   "browse",   get_screen_browse },
#ifdef ENABLE_ARTIST_SCREEN
	{ SCREEN_ARTIST_ID,   "artist",   get_screen_artist },
#endif
	{ SCREEN_HELP_ID,     "help",     get_screen_help },
#ifdef ENABLE_SEARCH_SCREEN
	{ SCREEN_SEARCH_ID,   "search",   get_screen_search },
#endif
#ifdef ENABLE_KEYDEF_SCREEN
	{ SCREEN_KEYDEF_ID,   "keydef",   get_screen_keydef },
#endif
#ifdef ENABLE_CLOCK_SCREEN
	{ SCREEN_CLOCK_ID,    "clock",    get_screen_clock },
#endif
#ifdef ENABLE_LYRICS_SCREEN
	{ SCREEN_LYRICS_ID,    "lyrics",    get_screen_lyrics },
#endif
	{ G_MAXINT, NULL,      NULL }
};

static gboolean welcome = TRUE;
static screen_t *screen = NULL;
static screen_functions_t *mode_fn = NULL;
static int seek_id = -1;
static int seek_target_time = 0;

gint
screen_get_id(const char *name)
{
	gint i=0;

	while (screens[i].name) {
		if (strcmp(name, screens[i].name) == 0)
			return screens[i].id;
		i++;
	}
	return -1;
}

static gint
lookup_mode(gint id)
{
	gint i=0;

	while (screens[i].name) {
		if (screens[i].id == id)
			return i;
		i++;
	}
	return -1;
}

gint get_cur_mode_id(void)
{
	return screens[screen->mode].id;
}

static void
switch_screen_mode(gint id, mpdclient_t *c)
{
	gint new_mode;

	if( id == screens[screen->mode].id )
		return;

	/* close the old mode */
	if( mode_fn && mode_fn->close )
		mode_fn->close();

	/* get functions for the new mode */
	new_mode = lookup_mode(id);
	if (new_mode>=0 && screens[new_mode].get_mode_functions) {
		D("switch_screen(%s)\n", screens[new_mode].name );
		mode_fn = screens[new_mode].get_mode_functions();
		screen->mode = new_mode;
	}

	screen->painted = 0;

	/* open the new mode */
	if (mode_fn && mode_fn->open)
		mode_fn->open(screen, c);
}

static void
screen_next_mode(mpdclient_t *c, int offset)
{
	int max = g_strv_length(options.screen_list);
	int current, next;
	int i;

	/* find current screen */
	current = -1;
	i = 0;
	while (options.screen_list[i]) {
		if (strcmp(options.screen_list[i],
			   screens[screen->mode].name) == 0)
			current = i;
		i++;
	}

	next = current + offset;
	if (next<0)
		next = max-1;
	else if (next>=max)
		next = 0;

	D("current mode: %d:%d    next:%d\n", current, max, next);
	switch_screen_mode(screen_get_id(options.screen_list[next]), c);
}

static void
paint_top_window2(const char *header, mpdclient_t *c)
{
	char flags[5];
	WINDOW *w = screen->top_window.w;
	char buf[32];

	if (header[0]) {
		colors_use(w, COLOR_TITLE_BOLD);
		mvwaddstr(w, 0, 0, header);
	} else {
		colors_use(w, COLOR_TITLE_BOLD);
		waddstr(w, get_key_names(CMD_SCREEN_HELP, FALSE));
		colors_use(w, COLOR_TITLE);
		waddstr(w, _(":Help  "));
		colors_use(w, COLOR_TITLE_BOLD);
		waddstr(w, get_key_names(CMD_SCREEN_PLAY, FALSE));
		colors_use(w, COLOR_TITLE);
		waddstr(w, _(":Playlist  "));
		colors_use(w, COLOR_TITLE_BOLD);
		waddstr(w, get_key_names(CMD_SCREEN_FILE, FALSE));
		colors_use(w, COLOR_TITLE);
		waddstr(w, _(":Browse  "));
#ifdef ENABLE_ARTIST_SCREEN
		colors_use(w, COLOR_TITLE_BOLD);
		waddstr(w, get_key_names(CMD_SCREEN_ARTIST, FALSE));
		colors_use(w, COLOR_TITLE);
		waddstr(w, _(":Artist  "));
#endif
#ifdef ENABLE_SEARCH_SCREEN
		colors_use(w, COLOR_TITLE_BOLD);
		waddstr(w, get_key_names(CMD_SCREEN_SEARCH, FALSE));
		colors_use(w, COLOR_TITLE);
		waddstr(w, _(":Search  "));
#endif
#ifdef ENABLE_LYRICS_SCREEN
		colors_use(w, COLOR_TITLE_BOLD);
		waddstr(w, get_key_names(CMD_SCREEN_LYRICS, FALSE));
		colors_use(w, COLOR_TITLE);
		waddstr(w, _(":Lyrics  "));
#endif
	}
	if (c->status->volume==MPD_STATUS_NO_VOLUME) {
		g_snprintf(buf, 32, _("Volume n/a "));
	} else {
		g_snprintf(buf, 32, _(" Volume %d%%"), c->status->volume);
	}
	colors_use(w, COLOR_TITLE);
	mvwaddstr(w, 0, screen->top_window.cols-my_strlen(buf), buf);

	flags[0] = 0;
	if( c->status->repeat )
		g_strlcat(flags, "r", sizeof(flags));
	if( c->status->random )
		g_strlcat(flags, "z", sizeof(flags));;
	if( c->status->crossfade )
		g_strlcat(flags, "x", sizeof(flags));
	if( c->status->updatingDb )
		g_strlcat(flags, "U", sizeof(flags));
	colors_use(w, COLOR_LINE);
	mvwhline(w, 1, 0, ACS_HLINE, screen->top_window.cols);
	if (flags[0]) {
		wmove(w,1,screen->top_window.cols-strlen(flags)-3);
		waddch(w, '[');
		colors_use(w, COLOR_LINE_BOLD);
		waddstr(w, flags);
		colors_use(w, COLOR_LINE);
		waddch(w, ']');
	}
	wnoutrefresh(w);
}

static void
paint_top_window(const char *header, mpdclient_t *c, int full_repaint)
{
	static int prev_volume = -1;
	static size_t prev_header_len = -1;
	WINDOW *w = screen->top_window.w;

	if (prev_header_len!=my_strlen(header)) {
		prev_header_len = my_strlen(header);
		full_repaint = 1;
	}

	if (full_repaint) {
		wmove(w, 0, 0);
		wclrtoeol(w);
	}

	if (prev_volume!=c->status->volume || full_repaint)
		paint_top_window2(header, c);
}

static void
paint_progress_window(mpdclient_t *c)
{
	double p;
	int width;
	int elapsedTime = c->status->elapsedTime;

	if (c->status==NULL || IS_STOPPED(c->status->state)) {
		mvwhline(screen->progress_window.w, 0, 0, ACS_HLINE,
			 screen->progress_window.cols);
		wnoutrefresh(screen->progress_window.w);
		return;
	}

	if (c->song && seek_id == c->song->id)
		elapsedTime = seek_target_time;

	p = ((double) elapsedTime) / ((double) c->status->totalTime);

	width = (int) (p * (double) screen->progress_window.cols);
	mvwhline(screen->progress_window.w,
		 0, 0,
		 ACS_HLINE,
		 screen->progress_window.cols);
	whline(screen->progress_window.w, '=', width-1);
	mvwaddch(screen->progress_window.w, 0, width-1, 'O');
	wnoutrefresh(screen->progress_window.w);
}

static void
paint_status_window(mpdclient_t *c)
{
	WINDOW *w = screen->status_window.w;
	mpd_Status *status = c->status;
	mpd_Song *song = c->song;
	int elapsedTime = 0;
	const char *str = NULL;
	int x = 0;

	if( time(NULL) - screen->status_timestamp <= SCREEN_STATUS_MESSAGE_TIME )
		return;

	wmove(w, 0, 0);
	wclrtoeol(w);
	colors_use(w, COLOR_STATUS_BOLD);

	switch(status->state) {
	case MPD_STATUS_STATE_PLAY:
		str = _("Playing:");
		break;
	case MPD_STATUS_STATE_PAUSE:
		str = _("[Paused]");
		break;
	case MPD_STATUS_STATE_STOP:
	default:
		break;
	}

	if (str) {
		waddstr(w, str);
		x += my_strlen(str)+1;
	}

	/* create time string */
	memset(screen->buf, 0, screen->buf_size);
	if (IS_PLAYING(status->state) || IS_PAUSED(status->state)) {
		if (status->totalTime > 0) {
			/*checks the conf to see whether to display elapsed or remaining time */
			if(!strcmp(options.timedisplay_type,"elapsed"))
				elapsedTime = c->status->elapsedTime;
			else if(!strcmp(options.timedisplay_type,"remaining"))
				elapsedTime = (c->status->totalTime - c->status->elapsedTime);

			if( c->song && seek_id == c->song->id )
				elapsedTime = seek_target_time;
			/*write out the time, using hours if time over 60 minutes*/
			if (c->status->totalTime > 3600) {
				g_snprintf(screen->buf, screen->buf_size,
					   " [%i:%02i:%02i/%i:%02i:%02i]",
					   elapsedTime/3600, (elapsedTime%3600)/60, elapsedTime%60,
					   status->totalTime/3600, (status->totalTime%3600)/60,  status->totalTime%60);
			} else {
				g_snprintf(screen->buf, screen->buf_size,
					   " [%i:%02i/%i:%02i]",
					   elapsedTime/60, elapsedTime%60,
					   status->totalTime/60,   status->totalTime%60 );
			}
		} else {
			g_snprintf(screen->buf, screen->buf_size,
				   " [%d kbps]", status->bitRate );
		}
	} else {
		time_t timep;

		time(&timep);
		strftime(screen->buf, screen->buf_size, "%X ",localtime(&timep));
	}

	/* display song */
	if (IS_PLAYING(status->state) || IS_PAUSED(status->state)) {
		char songname[MAX_SONGNAME_LENGTH];
		int width = COLS-x-my_strlen(screen->buf);

		if (song)
			strfsong(songname, MAX_SONGNAME_LENGTH, STATUS_FORMAT, song);
		else
			songname[0] = '\0';

		colors_use(w, COLOR_STATUS);
		/* scroll if the song name is to long */
		if (options.scroll && my_strlen(songname) > (size_t)width) {
			static  scroll_state_t st = { 0, 0 };
			char *tmp = strscroll(songname, options.scroll_sep, width, &st);

			g_strlcpy(songname, tmp, MAX_SONGNAME_LENGTH);
			g_free(tmp);
		}
		//mvwaddnstr(w, 0, x, songname, width);
		mvwaddstr(w, 0, x, songname);
	}

	/* display time string */
	if (screen->buf[0]) {
		x = screen->status_window.cols - strlen(screen->buf);
		colors_use(w, COLOR_STATUS_TIME);
		mvwaddstr(w, 0, x, screen->buf);
	}

	wnoutrefresh(w);
}

int
screen_exit(void)
{
	endwin();
	if (screen) {
		gint i;

		/* close and exit all screens (playlist,browse,help...) */
		i=0;
		while (screens[i].get_mode_functions) {
			screen_functions_t *sf = screens[i].get_mode_functions();

			if (sf && sf->close)
				sf->close();
			if (sf && sf->exit)
				sf->exit();

			i++;
		}

		string_list_free(screen->find_history);
		g_free(screen->buf);
		g_free(screen->findbuf);

		g_free(screen);
		screen = NULL;
	}
	return 0;
}

void
screen_resize(void)
{
	gint i;

	D("Resize rows %d->%d, cols %d->%d\n",screen->rows,LINES,screen->cols,COLS);
	if (COLS<SCREEN_MIN_COLS || LINES<SCREEN_MIN_ROWS) {
		screen_exit();
		fprintf(stderr, _("Error: Screen to small!\n"));
		exit(EXIT_FAILURE);
	}

	resizeterm(LINES, COLS);

	screen->cols = COLS;
	screen->rows = LINES;

	/* top window */
	screen->top_window.cols = screen->cols;
	wresize(screen->top_window.w, 2, screen->cols);

	/* main window */
	screen->main_window.cols = screen->cols;
	screen->main_window.rows = screen->rows-4;
	wresize(screen->main_window.w, screen->main_window.rows, screen->cols);
	wclear(screen->main_window.w);

	/* progress window */
	screen->progress_window.cols = screen->cols;
	wresize(screen->progress_window.w, 1, screen->cols);
	mvwin(screen->progress_window.w, screen->rows-2, 0);

	/* status window */
	screen->status_window.cols = screen->cols;
	wresize(screen->status_window.w, 1, screen->cols);
	mvwin(screen->status_window.w, screen->rows-1, 0);

	screen->buf_size = screen->cols;
	g_free(screen->buf);
	screen->buf = g_malloc(screen->cols);

	/* close and exit all screens (playlist,browse,help...) */
	i=0;
	while (screens[i].get_mode_functions) {
		screen_functions_t *sf = screens[i].get_mode_functions();

		if (sf && sf->resize)
			sf->resize(screen->main_window.cols, screen->main_window.rows);

		i++;
	}

	/* ? - without this the cursor becomes visible with aterm & Eterm */
	curs_set(1);
	curs_set(0);

	screen->painted = 0;
}

void
screen_status_message(const char *msg)
{
	WINDOW *w = screen->status_window.w;

	wmove(w, 0, 0);
	wclrtoeol(w);
	colors_use(w, COLOR_STATUS_ALERT);
	waddstr(w, msg);
	wnoutrefresh(w);
	screen->status_timestamp = time(NULL);
}

void
screen_status_printf(const char *format, ...)
{
	char *msg;
	va_list ap;

	va_start(ap,format);
	msg = g_strdup_vprintf(format,ap);
	va_end(ap);
	screen_status_message(msg);
	g_free(msg);
}

void
ncurses_init(void)
{

	/* initialize the curses library */
	initscr();
	/* initialize color support */
	colors_start();
	/* tell curses not to do NL->CR/NL on output */
	nonl();
	/*  use raw mode (ignore interrupt,quit,suspend, and flow control ) */
#ifdef ENABLE_RAW_MODE
	//  raw();
#endif
	/* don't echo input */
	noecho();
	/* set cursor invisible */
	curs_set(0);
	/* enable extra keys */
	keypad(stdscr, TRUE);
	/* return from getch() without blocking */
	timeout(SCREEN_TIMEOUT);
	/* initialize mouse support */
#ifdef HAVE_GETMOUSE
	if( options.enable_mouse )
		mousemask(ALL_MOUSE_EVENTS, NULL);
#endif

	if( COLS<SCREEN_MIN_COLS || LINES<SCREEN_MIN_ROWS )
		{
			fprintf(stderr, _("Error: Screen to small!\n"));
			exit(EXIT_FAILURE);
		}
	screen = g_malloc(sizeof(screen_t));
	memset(screen, 0, sizeof(screen_t));
	screen->mode = 0;
	screen->cols = COLS;
	screen->rows = LINES;

	screen->buf  = g_malloc(screen->cols);
	screen->buf_size = screen->cols;
	screen->findbuf = NULL;
	screen->painted = 0;
	screen->start_timestamp = time(NULL);
	screen->input_timestamp = time(NULL);
	screen->last_cmd = CMD_NONE;

	/* create top window */
	screen->top_window.rows = 2;
	screen->top_window.cols = screen->cols;
	screen->top_window.w = newwin(screen->top_window.rows,
				      screen->top_window.cols,
				      0, 0);
	leaveok(screen->top_window.w, TRUE);
	keypad(screen->top_window.w, TRUE);

	/* create main window */
	screen->main_window.rows = screen->rows-4;
	screen->main_window.cols = screen->cols;
	screen->main_window.w = newwin(screen->main_window.rows,
				       screen->main_window.cols,
				       2,
				       0);

	//  leaveok(screen->main_window.w, TRUE); temporary disabled
	keypad(screen->main_window.w, TRUE);

	/* create progress window */
	screen->progress_window.rows = 1;
	screen->progress_window.cols = screen->cols;
	screen->progress_window.w = newwin(screen->progress_window.rows,
					   screen->progress_window.cols,
					   screen->rows-2,
					   0);
	leaveok(screen->progress_window.w, TRUE);

	/* create status window */
	screen->status_window.rows = 1;
	screen->status_window.cols = screen->cols;
	screen->status_window.w = newwin(screen->status_window.rows,
					 screen->status_window.cols,
					 screen->rows-1,
					 0);

	leaveok(screen->status_window.w, FALSE);
	keypad(screen->status_window.w, TRUE);

	if( options.enable_colors )
		{
			/* set background attributes */
			wbkgd(stdscr, COLOR_PAIR(COLOR_LIST));
			wbkgd(screen->main_window.w,     COLOR_PAIR(COLOR_LIST));
			wbkgd(screen->top_window.w,      COLOR_PAIR(COLOR_TITLE));
			wbkgd(screen->progress_window.w, COLOR_PAIR(COLOR_PROGRESSBAR));
			wbkgd(screen->status_window.w,   COLOR_PAIR(COLOR_STATUS));
			colors_use(screen->progress_window.w, COLOR_PROGRESSBAR);
		}
}

int
screen_init(mpdclient_t *c)
{
	gint i;

	/* initialize screens */
	i=0;
	while( screens[i].get_mode_functions )
		{
			screen_functions_t *fn = screens[i].get_mode_functions();

			if( fn && fn->init )
				fn->init(screen->main_window.w,
					 screen->main_window.cols,
					 screen->main_window.rows);

			i++;
		}

#if 0
	/* broken */
	mode_fn = NULL;
	switch_screen_mode(screen_get_id(options.screen_list[0]), c);
#else
	mode_fn = get_screen_playlist();
#endif

	if( mode_fn && mode_fn->open )
		mode_fn->open(screen, c);

	/* initialize wreadln */
	wrln_wgetch = my_wgetch;
	wrln_max_history_length = 16;

	return 0;
}

void
screen_paint(mpdclient_t *c)
{
	const char *title = NULL;

	if (mode_fn && mode_fn->get_title)
		title = mode_fn->get_title(screen->buf, screen->buf_size);

	D("screen_paint(%s)\n", title);
	/* paint the title/header window */
	if( title )
		paint_top_window(title, c, 1);
	else
		paint_top_window("", c, 1);

	/* paint the main window */
	wclear(screen->main_window.w);
	if( mode_fn && mode_fn->paint )
		mode_fn->paint(screen, c);

	paint_progress_window(c);
	paint_status_window(c);
	screen->painted = 1;
	wmove(screen->main_window.w, 0, 0);
	wnoutrefresh(screen->main_window.w);

	/* tell curses to update */
	doupdate();
}

void
screen_update(mpdclient_t *c)
{
	static int repeat = -1;
	static int random_enabled = -1;
	static int crossfade = -1;
	static int dbupdate = -1;
	list_window_t *lw = NULL;

	if( !screen->painted )
		return screen_paint(c);

	/* print a message if mpd status has changed */
	if (repeat < 0) {
		repeat = c->status->repeat;
		random_enabled = c->status->random;
		crossfade = c->status->crossfade;
		dbupdate = c->status->updatingDb;
	}

	if (repeat != c->status->repeat)
		screen_status_printf(c->status->repeat ?
				     _("Repeat is on") :
				     _("Repeat is off"));

	if (random_enabled != c->status->random)
		screen_status_printf(c->status->random ?
				     _("Random is on") :
				     _("Random is off"));

	if (crossfade != c->status->crossfade)
		screen_status_printf(_("Crossfade %d seconds"), c->status->crossfade);

	if (dbupdate && dbupdate != c->status->updatingDb) {
		screen_status_printf(_("Database updated!"));
		mpdclient_browse_callback(c, BROWSE_DB_UPDATED, NULL);
	}

	repeat = c->status->repeat;
	random_enabled = c->status->random;
	crossfade = c->status->crossfade;
	dbupdate = c->status->updatingDb;

	/* update title/header window */
	if (welcome && screen->last_cmd==CMD_NONE &&
	    time(NULL)-screen->start_timestamp <= SCREEN_WELCOME_TIME)
		paint_top_window("", c, 0);
	else if (mode_fn && mode_fn->get_title) {
		paint_top_window(mode_fn->get_title(screen->buf,screen->buf_size), c, 0);
		welcome = FALSE;
	} else
		paint_top_window("", c, 0);

	/* update the main window */
	if (mode_fn && mode_fn->paint)
		mode_fn->update(screen, c);

	if (mode_fn && mode_fn->get_lw)
		lw = mode_fn->get_lw();

	/* update progress window */
	paint_progress_window(c);

	/* update status window */
	paint_status_window(c);

	/* move the cursor to the selected row in the main window */
	if (lw)
		wmove(screen->main_window.w, LW_ROW(lw), 0);
	else
		wmove(screen->main_window.w, 0, 0);
	wnoutrefresh(screen->main_window.w);

	/* tell curses to update */
	doupdate();
}

void
screen_idle(mpdclient_t *c)
{
	if( c->song && seek_id ==  c->song->id &&
	    (screen->last_cmd == CMD_SEEK_FORWARD ||
	     screen->last_cmd == CMD_SEEK_BACKWARD) )
		{
			mpdclient_cmd_seek(c, seek_id, seek_target_time);
		}

	screen->last_cmd = CMD_NONE;
	seek_id = -1;
}

#ifdef HAVE_GETMOUSE
int
screen_get_mouse_event(mpdclient_t *c,
		       list_window_t *lw, int lw_length,
		       unsigned long *bstate, int *row)
{
	MEVENT event;

	/* retreive the mouse event from ncurses */
	getmouse(&event);
	D("mouse: id=%d  y=%d,x=%d,z=%d\n",event.id,event.y,event.x,event.z);
	/* calculate the selected row in the list window */
	*row = event.y - screen->top_window.rows;
	/* copy button state bits */
	*bstate = event.bstate;
	/* if button 2 was pressed switch screen */
	if (event.bstate & BUTTON2_CLICKED) {
		screen_cmd(c, CMD_SCREEN_NEXT);
		return 1;
	}

	/* if the even occured above the list window move up */
	if (*row < 0 && lw) {
		if (event.bstate & BUTTON3_CLICKED)
			list_window_first(lw);
		else
			list_window_previous_page(lw);
		return 1;
	}

	/* if the even occured below the list window move down */
	if ((unsigned)*row >= lw->rows && lw) {
		if (event.bstate & BUTTON3_CLICKED)
			list_window_last(lw, lw_length);
		else
			list_window_next_page(lw, lw_length);
		return 1;
	}

	return 0;
}
#endif

void
screen_cmd(mpdclient_t *c, command_t cmd)
{
	screen->input_timestamp = time(NULL);
	screen->last_cmd = cmd;
	welcome = FALSE;

	if( mode_fn && mode_fn->cmd && mode_fn->cmd(screen, c, cmd) )
		return;

	switch(cmd) {
	case CMD_PLAY:
		mpdclient_cmd_play(c, MPD_PLAY_AT_BEGINNING);
		break;
	case CMD_PAUSE:
		mpdclient_cmd_pause(c, !IS_PAUSED(c->status->state));
		break;
	case CMD_STOP:
		mpdclient_cmd_stop(c);
		break;
	case CMD_SEEK_FORWARD:
		if (!IS_STOPPED(c->status->state)) {
			if (c->song && seek_id != c->song->id) {
				seek_id = c->song->id;
				seek_target_time = c->status->elapsedTime;
			}
			seek_target_time+=options.seek_time;
			if (seek_target_time < c->status->totalTime)
				break;
			seek_target_time = c->status->totalTime;
			/* seek_target_time=0; */
		}
		break;
		/* fall through... */
	case CMD_TRACK_NEXT:
		if (!IS_STOPPED(c->status->state))
			mpdclient_cmd_next(c);
		break;
	case CMD_SEEK_BACKWARD:
		if (!IS_STOPPED(c->status->state)) {
			if (seek_id != c->song->id) {
				seek_id = c->song->id;
				seek_target_time = c->status->elapsedTime;
			}
			seek_target_time-=options.seek_time;
			if (seek_target_time < 0)
				seek_target_time=0;
		}
		break;
	case CMD_TRACK_PREVIOUS:
		if (!IS_STOPPED(c->status->state))
			mpdclient_cmd_prev(c);
		break;
	case CMD_SHUFFLE:
		if (mpdclient_cmd_shuffle(c) == 0)
			screen_status_message(_("Shuffled playlist!"));
		break;
	case CMD_CLEAR:
		if (mpdclient_cmd_clear(c) == 0)
			screen_status_message(_("Cleared playlist!"));
		break;
	case CMD_REPEAT:
		mpdclient_cmd_repeat(c, !c->status->repeat);
		break;
	case CMD_RANDOM:
		mpdclient_cmd_random(c, !c->status->random);
		break;
	case CMD_CROSSFADE:
		if (c->status->crossfade)
			mpdclient_cmd_crossfade(c, 0);
		else
			mpdclient_cmd_crossfade(c, options.crossfade_time);
		break;
	case CMD_DB_UPDATE:
		if (!c->status->updatingDb) {
			if( mpdclient_cmd_db_update_utf8(c,NULL)==0 )
				screen_status_printf(_("Database update started!"));
		} else
			screen_status_printf(_("Database update running..."));
		break;
	case CMD_VOLUME_UP:
		if( c->status->volume!=MPD_STATUS_NO_VOLUME && c->status->volume<100 )
			mpdclient_cmd_volume(c, ++c->status->volume);
		break;
	case CMD_VOLUME_DOWN:
		if( c->status->volume!=MPD_STATUS_NO_VOLUME && c->status->volume>0 )
			mpdclient_cmd_volume(c, --c->status->volume);
		break;
	case CMD_TOGGLE_FIND_WRAP:
		options.find_wrap = !options.find_wrap;
		screen_status_printf(options.find_wrap ?
				     _("Find mode: Wrapped") :
				     _("Find mode: Normal"));
		break;
	case CMD_TOGGLE_AUTOCENTER:
		options.auto_center = !options.auto_center;
		screen_status_printf(options.auto_center ?
				     _("Auto center mode: On") :
				     _("Auto center mode: Off"));
		break;
	case CMD_SCREEN_UPDATE:
		screen->painted = 0;
		break;
	case CMD_SCREEN_PREVIOUS:
		screen_next_mode(c, -1);
		break;
	case CMD_SCREEN_NEXT:
		screen_next_mode(c, 1);
		break;
	case CMD_SCREEN_PLAY:
		switch_screen_mode(SCREEN_PLAYLIST_ID, c);
		break;
	case CMD_SCREEN_FILE:
		switch_screen_mode(SCREEN_BROWSE_ID, c);
		break;
	case CMD_SCREEN_HELP:
		switch_screen_mode(SCREEN_HELP_ID, c);
		break;
	case CMD_SCREEN_SEARCH:
		switch_screen_mode(SCREEN_SEARCH_ID, c);
		break;
	case CMD_SCREEN_ARTIST:
		switch_screen_mode(SCREEN_ARTIST_ID, c);
		break;
	case CMD_SCREEN_KEYDEF:
		switch_screen_mode(SCREEN_KEYDEF_ID, c);
		break;
	case CMD_SCREEN_CLOCK:
		switch_screen_mode(SCREEN_CLOCK_ID, c);
		break;
	case CMD_SCREEN_LYRICS:
		switch_screen_mode(SCREEN_LYRICS_ID, c);
		break;
	case CMD_QUIT:
		exit(EXIT_SUCCESS);
	default:
		break;
	}
}