mpd/src/PlaylistPrint.cxx
2014-02-27 17:12:42 +01:00

156 lines
3.6 KiB
C++

/*
* Copyright (C) 2003-2014 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "PlaylistPrint.hxx"
#include "PlaylistFile.hxx"
#include "queue/Playlist.hxx"
#include "queue/QueuePrint.hxx"
#include "SongPrint.hxx"
#include "Partition.hxx"
#include "Instance.hxx"
#include "db/Interface.hxx"
#include "client/Client.hxx"
#include "input/InputStream.hxx"
#include "DetachedSong.hxx"
#include "fs/Traits.hxx"
#include "util/Error.hxx"
#include "thread/Cond.hxx"
#define SONG_FILE "file: "
#define SONG_TIME "Time: "
void
playlist_print_uris(Client &client, const playlist &playlist)
{
const Queue &queue = playlist.queue;
queue_print_uris(client, queue, 0, queue.GetLength());
}
bool
playlist_print_info(Client &client, const playlist &playlist,
unsigned start, unsigned end)
{
const Queue &queue = playlist.queue;
if (end > queue.GetLength())
/* correct the "end" offset */
end = queue.GetLength();
if (start > end)
/* an invalid "start" offset is fatal */
return false;
queue_print_info(client, queue, start, end);
return true;
}
bool
playlist_print_id(Client &client, const playlist &playlist,
unsigned id)
{
int position;
position = playlist.queue.IdToPosition(id);
if (position < 0)
/* no such song */
return false;
return playlist_print_info(client, playlist, position, position + 1);
}
bool
playlist_print_current(Client &client, const playlist &playlist)
{
int current_position = playlist.GetCurrentPosition();
if (current_position < 0)
return false;
queue_print_info(client, playlist.queue,
current_position, current_position + 1);
return true;
}
void
playlist_print_find(Client &client, const playlist &playlist,
const SongFilter &filter)
{
queue_find(client, playlist.queue, filter);
}
void
playlist_print_changes_info(Client &client,
const playlist &playlist,
uint32_t version)
{
queue_print_changes_info(client, playlist.queue, version);
}
void
playlist_print_changes_position(Client &client,
const playlist &playlist,
uint32_t version)
{
queue_print_changes_position(client, playlist.queue, version);
}
#ifdef ENABLE_DATABASE
static bool
PrintSongDetails(Client &client, const char *uri_utf8)
{
const Database *db = client.partition.instance.database;
if (db == nullptr)
return false;
auto *song = db->GetSong(uri_utf8, IgnoreError());
if (song == nullptr)
return false;
song_print_info(client, *song);
db->ReturnSong(song);
return true;
}
#endif
bool
spl_print(Client &client, const char *name_utf8, bool detail,
Error &error)
{
#ifndef ENABLE_DATABASE
(void)detail;
#endif
PlaylistFileContents contents = LoadPlaylistFile(name_utf8, error);
if (contents.empty() && error.IsDefined())
return false;
for (const auto &uri_utf8 : contents) {
#ifdef ENABLE_DATABASE
if (!detail || !PrintSongDetails(client, uri_utf8.c_str()))
#endif
client_printf(client, SONG_FILE "%s\n",
uri_utf8.c_str());
}
return true;
}