strawberry-audio-player-win.../src/lyrics/lyricsproviders.cpp

77 lines
2.0 KiB
C++

/*
* Strawberry Music Player
* Copyright 2018, Jonas Kvinge <jonas@jkvinge.net>
*
* Strawberry 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 3 of the License, or
* (at your option) any later version.
*
* Strawberry 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 Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include <QObject>
#include <QMutex>
#include <QString>
#include <QtDebug>
#include "core/application.h"
#include "core/logging.h"
#include "lyricsprovider.h"
#include "lyricsproviders.h"
#include "lyricsfetcher.h"
LyricsProviders::LyricsProviders(QObject *parent) : QObject(parent) {}
void LyricsProviders::AddProvider(LyricsProvider *provider) {
{
QMutexLocker locker(&mutex_);
lyrics_providers_.insert(provider, provider->name());
connect(provider, SIGNAL(destroyed()), SLOT(ProviderDestroyed()));
}
qLog(Debug) << "Registered lyrics provider" << provider->name();
}
void LyricsProviders::RemoveProvider(LyricsProvider *provider) {
if (!provider) return;
// It's not safe to dereference provider at this point because it might have already been destroyed.
QString name;
{
QMutexLocker locker(&mutex_);
name = lyrics_providers_.take(provider);
}
if (name.isNull()) {
qLog(Debug) << "Tried to remove a lyrics provider that was not registered";
}
else {
qLog(Debug) << "Unregistered lyrics provider" << name;
}
}
void LyricsProviders::ProviderDestroyed() {
LyricsProvider *provider = static_cast<LyricsProvider*>(sender());
RemoveProvider(provider);
}
int LyricsProviders::NextId() { return next_id_.fetchAndAddRelaxed(1); }