path: root/src/screen_search.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 <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <ncurses.h>

#include "config.h"
#ifndef DISABLE_SEARCH_SCREEN
#include "ncmpc.h"
#include "options.h"
#include "support.h"
#include "mpdclient.h"
#include "strfsong.h"
#include "command.h"
#include "screen.h"
#include "screen_utils.h"
#include "screen_browse.h"

#define SEARCH_TITLE  0
#define SEARCH_ARTIST 1
#define SEARCH_ALBUM  2
#define SEARCH_FILE   3

typedef struct {
  int table;
  char *label;
} search_type_t;

static search_type_t mode[] = {
  { MPD_TABLE_TITLE,    N_("Title") },
  { MPD_TABLE_ARTIST,   N_("Artist") },
  { MPD_TABLE_ALBUM,    N_("Album") },
  { MPD_TABLE_FILENAME, N_("Filename") },
  { 0, NULL }
};

static list_window_t *lw = NULL;
static mpdclient_filelist_t *filelist = NULL;
static gchar *pattern = NULL;

/* the playlist have been updated -> fix highlights */
static void 
playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
{
  if( filelist==NULL )
    return;
  D("screen_search.c> playlist_callback() [%d]\n", event);
  switch(event)
    {
    case PLAYLIST_EVENT_CLEAR:
      clear_highlights(filelist);
      break;
    default:
      sync_highlights(c, filelist);
      break;
    }
}

/* sanity check search mode value */
static void
search_check_mode(void)
{
  int max = 0;

  while( mode[max].label != NULL )
    max++;
  if( options.search_mode<0 )
    options.search_mode = 0;
  else if( options.search_mode>=max )
    options.search_mode = max-1;
}

static void
search_clear(screen_t *screen, mpdclient_t *c, gboolean clear_pattern)
{
  if( filelist )
    {
      mpdclient_remove_playlist_callback(c, playlist_changed_callback);
      filelist = mpdclient_filelist_free(filelist);
    }
  if( clear_pattern && pattern )
    {
      g_free(pattern);
      pattern = NULL;
    }
}

static void
search_new(screen_t *screen, mpdclient_t *c)
{
  search_clear(screen, c, TRUE);
  
  pattern = screen_readln(screen->status_window.w, 
			  _("Search: "),
			  NULL,
			  NULL,
			  NULL);

  if( pattern && strcmp(pattern,"")==0 )
    {
      g_free(pattern);
      pattern=NULL;
    }
  
  if( pattern==NULL )
    {
      list_window_reset(lw);
      return;
    }

  filelist = mpdclient_filelist_search(c, 
				       FALSE,
				       mode[options.search_mode].table,
				       pattern);
  sync_highlights(c, filelist);
  mpdclient_install_playlist_callback(c, playlist_changed_callback);
  list_window_check_selected(lw, filelist->length);
}

static void
init(WINDOW *w, int cols, int rows)
{
  lw = list_window_init(w, cols, rows);
}

static void
quit(void)
{
  if( filelist )
    filelist = mpdclient_filelist_free(filelist);
  list_window_free(lw);
  if( pattern )
    g_free(pattern);
  pattern = NULL;
}

static void
open(screen_t *screen, mpdclient_t *c)
{
  if( pattern==NULL )
    search_new(screen, c);
  else
    screen_status_printf(_("Press %s for a new search"),
			 get_key_names(CMD_SCREEN_SEARCH,0));
  search_check_mode();
}

static void
resize(int cols, int rows)
{
  lw->cols = cols;
  lw->rows = rows;
}

static void
close(void)
{
}

static void 
paint(screen_t *screen, mpdclient_t *c)
{
  lw->clear = 1;
  
  if( filelist )
    {
      list_window_paint(lw, browse_lw_callback, (void *) filelist);
      filelist->updated = FALSE;
    }
  else
    {
      wmove(lw->w, 0, 0);
      wclrtobot(lw->w);
    }
  wnoutrefresh(lw->w);
}

static void 
update(screen_t *screen, mpdclient_t *c)
{
  if( filelist==NULL || filelist->updated )
    {
      paint(screen, c);
      return;
    }
  list_window_paint(lw, browse_lw_callback, (void *) filelist);
  wnoutrefresh(lw->w);
}

static char *
get_title(char *str, size_t size)
{
  if( pattern )
    g_snprintf(str, size, 
	       _("Search: Results for %s [%s]"), 
	       pattern,
	       _(mode[options.search_mode].label));
  else
    g_snprintf(str, size, _("Search: Press %s for a new search [%s]"),
	       get_key_names(CMD_SCREEN_SEARCH,0),
	       _(mode[options.search_mode].label));
	       
  return str;
}

static list_window_t *
get_filelist_window()
{
  return lw;
}

static int 
search_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
{
  switch(cmd)
    {
    case CMD_PLAY:
       browse_handle_enter(screen, c, lw, filelist);
      return 1;

    case CMD_SELECT:
      if( browse_handle_select(screen, c, lw, filelist) == 0 )
	{
	  /* continue and select next item... */
	  cmd = CMD_LIST_NEXT;
	}
      return 1;

    case CMD_SEARCH_MODE:
      options.search_mode++;
      if( mode[options.search_mode].label == NULL )
	options.search_mode = 0;
      screen_status_printf(_("Search mode: %s"), 
			   _(mode[options.search_mode].label));
      /* continue and update... */
    case CMD_SCREEN_UPDATE:
      if( pattern )
	{
	  search_clear(screen, c, FALSE);
	  filelist = mpdclient_filelist_search(c, 
					       FALSE,
					       mode[options.search_mode].table,
					       pattern);
	  sync_highlights(c, filelist);
	}
      return 1;

    case CMD_SCREEN_SEARCH:
      search_new(screen, c);
      return 1;

    case CMD_CLEAR:
      search_clear(screen, c, TRUE);
      list_window_reset(lw);
      return 1;

    case CMD_LIST_FIND:
    case CMD_LIST_RFIND:
    case CMD_LIST_FIND_NEXT:
    case CMD_LIST_RFIND_NEXT:
      if( filelist )
	return screen_find(screen, c, 
			   lw, filelist->length,
			   cmd, browse_lw_callback, (void *) filelist);
      else
	return 1;

    case CMD_MOUSE_EVENT:
      return browse_handle_mouse_event(screen,c,lw,filelist);

    default:
      if( filelist )
	return list_window_cmd(lw, filelist->length, cmd);
    }
  
  return 0;
}

screen_functions_t *
get_screen_search(void)
{
  static screen_functions_t functions;

  memset(&functions, 0, sizeof(screen_functions_t));
  functions.init   = init;
  functions.exit   = quit;
  functions.open   = open;
  functions.close  = close;
  functions.resize = resize;
  functions.paint  = paint;
  functions.update = update;
  functions.cmd    = search_cmd;
  functions.get_lw = get_filelist_window;
  functions.get_title = get_title;

  return &functions;
}


#endif /* ENABLE_SEARCH_SCREEN */