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/***************************************************************************
* Copyright (C) 2008-2014 by Andrzej Rybczak *
* electricityispower@gmail.com *
* *
* 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 St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef NCMPCPP_LYRICS_H
#define NCMPCPP_LYRICS_H
#include <pthread.h>
#include <queue>
#include "interfaces.h"
#include "lyrics_fetcher.h"
#include "screen.h"
#include "song.h"
struct Lyrics: Screen<NC::Scrollpad>, Tabbable
{
Lyrics();
// Screen<NC::Scrollpad> implementation
virtual void resize() OVERRIDE;
virtual void switchTo() OVERRIDE;
virtual std::wstring title() OVERRIDE;
virtual ScreenType type() OVERRIDE { return ScreenType::Lyrics; }
virtual void update() OVERRIDE;
virtual void enterPressed() OVERRIDE { }
virtual void spacePressed() OVERRIDE;
virtual bool isMergable() OVERRIDE { return true; }
// private members
bool SetSong(const MPD::Song &s);
void Edit();
# ifdef HAVE_CURL_CURL_H
void Refetch();
static void ToggleFetcher();
static void DownloadInBackground(const MPD::Song &s);
# endif // HAVE_CURL_CURL_H
bool Reload;
protected:
virtual bool isLockable() OVERRIDE { return false; }
private:
void Load();
# ifdef HAVE_CURL_CURL_H
static void *DownloadInBackgroundImpl(void *song_ptr);
static void DownloadInBackgroundImplHelper(const MPD::Song &s);
// lock for allowing exclusive access to itsToDownload and itsWorkersNumber
static pthread_mutex_t itsDIBLock;
// storage for songs for which lyrics are scheduled to be downloaded
static std::queue<MPD::Song *> itsToDownload;
// current worker threads (ie. downloading lyrics)
static size_t itsWorkersNumber;
// maximum number of worker threads. if it's reached, next lyrics requests
// are put into itsToDownload queue.
static const size_t itsMaxWorkersNumber = 4;
void *Download();
static void *DownloadWrapper(void *);
static void Save(const std::string &filename, const std::string &lyrics);
void Take();
bool isReadyToTake;
bool isDownloadInProgress;
pthread_t itsDownloader;
static LyricsFetcher **itsFetcher;
# endif // HAVE_CURL_CURL_H
size_t itsScrollBegin;
MPD::Song itsSong;
std::string itsFilename;
static std::string GenerateFilename(const MPD::Song &s);
};
extern Lyrics *myLyrics;
#endif // NCMPCPP_LYRICS_H
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