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playermanager.cpp
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playermanager.cpp
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/**
* Copyright (C) 2004 Scott Wheeler <wheeler@kde.org>
* Copyright (C) 2007 Matthias Kretz <kretz@kde.org>
* Copyright (C) 2008, 2009, 2018 Michael Pyne <mpyne@kde.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, see <http://www.gnu.org/licenses/>.
*/
#include "playermanager.h"
#include <kmessagebox.h>
#include <kactioncollection.h>
#include <kselectaction.h>
#include <ktoggleaction.h>
#include <KLocalizedString>
#include <phonon/AudioOutput>
#include <phonon/MediaObject>
#include <phonon/MediaSource>
#include <QPixmap>
#include <QUrl>
#include <algorithm>
#include "playlistinterface.h"
#include "playeradaptor.h"
#include "slideraction.h"
#include "statuslabel.h"
#include "actioncollection.h"
#include "collectionlist.h"
#include "coverinfo.h"
#include "juktag.h"
#include "scrobbler.h"
#include "juk.h"
#include "juk_debug.h"
using namespace ActionCollection;
enum PlayerManagerStatus { StatusStopped = -1, StatusPaused = 1, StatusPlaying = 2 };
////////////////////////////////////////////////////////////////////////////////
// static functions
////////////////////////////////////////////////////////////////////////////////
static void updateWindowTitle(const FileHandle &file)
{
JuK::JuKInstance()->setWindowTitle(i18nc(
"%1 is the artist and %2 is the title of the currently playing track.",
"%1 - %2 :: JuK",
file.tag()->artist(),
file.tag()->title()));
}
////////////////////////////////////////////////////////////////////////////////
// protected members
////////////////////////////////////////////////////////////////////////////////
PlayerManager::PlayerManager() :
QObject(),
m_playlistInterface(nullptr),
m_output(new Phonon::AudioOutput(Phonon::MusicCategory, this)),
m_media( new Phonon::MediaObject(this)),
m_audioPath(Phonon::createPath(m_media, m_output))
{
setupAudio();
new PlayerAdaptor(this);
QDBusConnection::sessionBus().registerObject("/Player", this);
}
////////////////////////////////////////////////////////////////////////////////
// public members
////////////////////////////////////////////////////////////////////////////////
bool PlayerManager::playing() const
{
Phonon::State state = m_media->state();
return (state == Phonon::PlayingState || state == Phonon::BufferingState);
}
bool PlayerManager::paused() const
{
return m_media->state() == Phonon::PausedState;
}
bool PlayerManager::muted() const
{
return m_output->isMuted();
}
float PlayerManager::volume() const
{
return m_output->volume();
}
int PlayerManager::status() const
{
if(paused())
return StatusPaused;
if(playing())
return StatusPlaying;
return StatusStopped;
}
int PlayerManager::totalTime() const
{
return totalTimeMSecs() / 1000;
}
int PlayerManager::currentTime() const
{
return currentTimeMSecs() / 1000;
}
int PlayerManager::totalTimeMSecs() const
{
return m_media->totalTime();
}
int PlayerManager::currentTimeMSecs() const
{
return m_media->currentTime();
}
bool PlayerManager::seekable() const
{
return m_media->isSeekable();
}
QStringList PlayerManager::trackProperties()
{
return FileHandle::properties();
}
QString PlayerManager::trackProperty(const QString &property) const
{
if(!playing() && !paused())
return QString();
return m_file.property(property);
}
QPixmap PlayerManager::trackCover(const QString &size) const
{
if(!playing() && !paused())
return QPixmap();
if(size.toLower() == "small")
return m_file.coverInfo()->pixmap(CoverInfo::Thumbnail);
if(size.toLower() == "large")
return m_file.coverInfo()->pixmap(CoverInfo::FullSize);
return QPixmap();
}
FileHandle PlayerManager::playingFile() const
{
return m_file;
}
QString PlayerManager::playingString() const
{
if(!playing() || m_file.isNull())
return QString();
return m_file.tag()->playingString();
}
void PlayerManager::setPlaylistInterface(PlaylistInterface *interface)
{
m_playlistInterface = interface;
}
////////////////////////////////////////////////////////////////////////////////
// public slots
////////////////////////////////////////////////////////////////////////////////
void PlayerManager::play(const FileHandle &file)
{
if(!m_media || !m_playlistInterface || file.isNull())
return;
if(m_file != file) {
emit signalItemChanged(file);
m_media->setCurrentSource(QUrl::fromLocalFile(file.absFilePath()));
m_media->play();
}
m_file = file;
// Our state changed handler will perform the follow up actions necessary
// once we actually start playing.
}
void PlayerManager::play(const QString &file)
{
CollectionListItem *item = CollectionList::instance()->lookup(file);
if(item) {
item->playlist()->setPlaying(item); // Will reentrantly call play(FileHandle)
}
}
void PlayerManager::play()
{
if(paused())
m_media->play();
else if(playing()) {
m_media->seek(0);
emit seeked(0);
}
else {
// Will reentrantly call play(FileHandle)
m_playlistInterface->playNext();
}
}
void PlayerManager::pause()
{
if(paused())
return;
action("pause")->setEnabled(false);
m_media->pause();
}
void PlayerManager::stop()
{
if(!m_playlistInterface)
return;
action("pause")->setEnabled(false);
action("stop")->setEnabled(false);
action("back")->setEnabled(false);
action("forward")->setEnabled(false);
action("forwardAlbum")->setEnabled(false);
if(!m_file.isNull()) {
m_file = FileHandle();
emit signalItemChanged(m_file);
}
m_media->stop();
}
void PlayerManager::seek(int seekTime)
{
if(m_media->currentTime() == seekTime)
return;
m_media->seek(seekTime);
emit seeked(seekTime);
}
void PlayerManager::seekForward()
{
const qint64 total = m_media->totalTime();
const qint64 newtime = m_media->currentTime() + total / 100;
const qint64 seekTo = qMin(total, newtime);
m_media->seek(seekTo);
emit seeked(seekTo);
}
void PlayerManager::seekBack()
{
const qint64 total = m_media->totalTime();
const qint64 newtime = m_media->currentTime() - total / 100;
const qint64 seekTo = qMax(qint64(0), newtime);
m_media->seek(seekTo);
emit seeked(seekTo);
}
void PlayerManager::playPause()
{
playing() ? action("pause")->trigger() : action("play")->trigger();
}
void PlayerManager::forward()
{
m_playlistInterface->playNext();
FileHandle file = m_playlistInterface->currentFile();
if(!file.isNull())
play(file);
else
stop();
}
void PlayerManager::back()
{
m_playlistInterface->playPrevious();
FileHandle file = m_playlistInterface->currentFile();
if(!file.isNull())
play(file);
else
stop();
}
void PlayerManager::volumeUp()
{
const auto newVolume = std::min(m_output->volume() + 0.04, 1.0);
m_output->setVolume(newVolume); // 4% up
}
void PlayerManager::volumeDown()
{
const auto newVolume = std::max(m_output->volume() - 0.04, 0.0);
m_output->setVolume(newVolume); // 4% down
}
void PlayerManager::setMuted(bool m)
{
m_output->setMuted(m);
}
bool PlayerManager::mute()
{
bool newState = !muted();
setMuted(newState);
return newState;
}
////////////////////////////////////////////////////////////////////////////////
// private slots
////////////////////////////////////////////////////////////////////////////////
void PlayerManager::slotFinished()
{
// It is possible to end up in this function if a file simply fails to play or if the
// user moves the slider all the way to the end, therefore see if we can keep playing
// and if we can, do so. Otherwise, stop.
m_playlistInterface->playNext();
play(m_playlistInterface->currentFile());
}
void PlayerManager::slotLength(qint64 msec)
{
emit totalTimeChanged(msec);
}
void PlayerManager::slotTick(qint64 msec)
{
emit tick(msec);
}
void PlayerManager::slotStateChanged(Phonon::State newstate, Phonon::State)
{
if(newstate == Phonon::ErrorState) {
QString errorMessage =
i18nc(
"%1 will be the /path/to/file, %2 will be some string from Phonon describing the error",
"JuK is unable to play the audio file<nl/><filename>%1</filename><nl/>"
"for the following reason:<nl/><message>%2</message>",
m_file.absFilePath(),
m_media->errorString()
);
qCWarning(JUK_LOG)
<< "Phonon is in error state" << m_media->errorString()
<< "while playing" << m_file.absFilePath();
switch(m_media->errorType()) {
case Phonon::NoError:
qCDebug(JUK_LOG) << "received a state change to ErrorState but errorType is NoError!?";
break;
case Phonon::NormalError:
KMessageBox::information(0, errorMessage);
break;
case Phonon::FatalError:
KMessageBox::error(0, errorMessage);
break;
}
stop();
return;
}
// "normal" path
if(newstate == Phonon::StoppedState && m_file.isNull()) {
JuK::JuKInstance()->setWindowTitle(i18n("JuK"));
emit signalStop();
}
else if(newstate == Phonon::PausedState) {
emit signalPause();
}
else { // PlayingState or BufferingState
action("pause")->setEnabled(true);
action("stop")->setEnabled(true);
action("forward")->setEnabled(true);
if(action<KToggleAction>("albumRandomPlay")->isChecked())
action("forwardAlbum")->setEnabled(true);
action("back")->setEnabled(true);
updateWindowTitle(m_file);
emit signalPlay();
}
}
void PlayerManager::slotSeekableChanged(bool isSeekable)
{
emit seekableChanged(isSeekable);
}
void PlayerManager::slotMutedChanged(bool muted)
{
emit mutedChanged(muted);
}
void PlayerManager::setVolume(qreal volume)
{
if(!qIsFinite(volume) || qFuzzyCompare(m_output->volume(), volume)) {
return;
}
m_output->setVolume(volume);
emit volumeChanged(volume);
}
////////////////////////////////////////////////////////////////////////////////
// private members
////////////////////////////////////////////////////////////////////////////////
void PlayerManager::setupAudio()
{
using namespace Phonon;
m_output->setVolume(1.0); // sometimes Phonon loads it as NaN?
connect(m_output, &AudioOutput::mutedChanged,
this, &PlayerManager::slotMutedChanged);
connect(m_output, &AudioOutput::volumeChanged,
this, &PlayerManager::setVolume);
connect(m_media, &MediaObject::stateChanged,
this, &PlayerManager::slotStateChanged);
connect(m_media, &MediaObject::currentSourceChanged,
this, &PlayerManager::trackHasChanged);
connect(m_media, &MediaObject::totalTimeChanged,
this, &PlayerManager::slotLength);
connect(m_media, &MediaObject::tick,
this, &PlayerManager::slotTick);
connect(m_media, &MediaObject::finished,
this, &PlayerManager::slotFinished);
connect(m_media, &MediaObject::seekableChanged,
this, &PlayerManager::slotSeekableChanged);
m_media->setTickInterval(100);
}
QString PlayerManager::randomPlayMode() const
{
if(action<KToggleAction>("randomPlay")->isChecked())
return "Random";
if(action<KToggleAction>("albumRandomPlay")->isChecked())
return "AlbumRandom";
return "NoRandom";
}
void PlayerManager::setRandomPlayMode(const QString &randomMode)
{
if(randomMode.toLower() == "random")
action<KToggleAction>("randomPlay")->setChecked(true);
if(randomMode.toLower() == "albumrandom")
action<KToggleAction>("albumRandomPlay")->setChecked(true);
if(randomMode.toLower() == "norandom")
action<KToggleAction>("disableRandomPlay")->setChecked(true);
}
void PlayerManager::trackHasChanged(const Phonon::MediaSource &newSource)
{
if(newSource.type() == Phonon::MediaSource::Url) {
const auto item = CollectionList::instance()->lookup(newSource.url().path());
if(item) {
const auto newFile = item->file();
if(m_file != newFile)
emit signalItemChanged(newFile);
m_file = newFile;
updateWindowTitle(m_file);
emit signalPlay();
emit seeked(0);
}
} else {
qCWarning(JUK_LOG) << "Track has changed so something we didn't set???";
return;
}
}
// vim: set et sw=4 tw=0 sta: