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Clementine-audio-player-Mac.../src/radio/lastfmservice.cpp

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/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
Clementine 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.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "lastfmservice.h"
#include "lastfmstationdialog.h"
#include "lastfmurlhandler.h"
#include "radiomodel.h"
#include "radioplaylistitem.h"
#include "core/logging.h"
#include "core/player.h"
#include "core/song.h"
#include "core/taskmanager.h"
#include "ui/iconloader.h"
#include "ui/settingsdialog.h"
#include <boost/scoped_ptr.hpp>
#include <lastfm/Audioscrobbler>
#include <lastfm/misc.h>
#include <lastfm/RadioStation>
#include <lastfm/Scrobble>
#include <lastfm/ScrobblePoint>
#include <lastfm/ws.h>
#include <lastfm/XmlQuery>
#include <QMenu>
#include <QSettings>
using boost::scoped_ptr;
using lastfm::Scrobble;
using lastfm::XmlQuery;
uint qHash(const lastfm::Track& track) {
return qHash(track.title()) ^
qHash(track.artist().name()) ^
qHash(track.album().title());
}
const char* LastFMService::kServiceName = "Last.fm";
const char* LastFMService::kSettingsGroup = "Last.fm";
const char* LastFMService::kAudioscrobblerClientId = "tng";
const char* LastFMService::kApiKey = "75d20fb472be99275392aefa2760ea09";
const char* LastFMService::kSecret = "d3072b60ae626be12be69448f5c46e70";
const char* LastFMService::kUrlArtist = "lastfm://artist/%1/similarartists";
const char* LastFMService::kUrlTag = "lastfm://globaltags/%1";
const char* LastFMService::kUrlCustom = "lastfm://rql/%1";
const char* LastFMService::kTitleArtist = QT_TR_NOOP("Last.fm Similar Artists to %1");
const char* LastFMService::kTitleTag = QT_TR_NOOP("Last.fm Tag Radio: %1");
const char* LastFMService::kTitleCustom = QT_TR_NOOP("Last.fm Custom Radio: %1");
LastFMService::LastFMService(RadioModel* parent)
: RadioService(kServiceName, parent),
url_handler_(new LastFMUrlHandler(this, this)),
scrobbler_(NULL),
already_scrobbled_(false),
station_dialog_(new LastFMStationDialog),
context_menu_(new QMenu),
initial_tune_(false),
tune_task_id_(0),
scrobbling_enabled_(false),
artist_list_(NULL),
tag_list_(NULL),
custom_list_(NULL),
friends_list_(NULL),
neighbours_list_(NULL),
connection_problems_(false)
{
ReloadSettings();
//we emit the signal the first time to be sure the buttons are in the right state
emit ScrobblingEnabledChanged(scrobbling_enabled_);
context_menu_->addActions(GetPlaylistActions());
remove_action_ = context_menu_->addAction(
IconLoader::Load("list-remove"), tr("Remove"), this, SLOT(Remove()));
context_menu_->addSeparator();
add_artist_action_ = context_menu_->addAction(
QIcon(":last.fm/icon_radio.png"), tr("Play artist radio..."), this, SLOT(AddArtistRadio()));
add_tag_action_ = context_menu_->addAction(
QIcon(":last.fm/icon_tag.png"), tr("Play tag radio..."), this, SLOT(AddTagRadio()));
add_custom_action_ = context_menu_->addAction(
QIcon(":last.fm/icon_radio.png"), tr("Play custom radio..."), this, SLOT(AddCustomRadio()));
context_menu_->addAction(
IconLoader::Load("configure"), tr("Configure Last.fm..."), this, SLOT(ShowConfig()));
remove_action_->setEnabled(false);
add_artist_action_->setEnabled(false);
add_tag_action_->setEnabled(false);
add_custom_action_->setEnabled(false);
model()->player()->RegisterUrlHandler(url_handler_);
}
LastFMService::~LastFMService() {
}
void LastFMService::ReloadSettings() {
bool scrobbling_enabled_old = scrobbling_enabled_;
QSettings settings;
settings.beginGroup(kSettingsGroup);
lastfm::ws::Username = settings.value("Username").toString();
lastfm::ws::SessionKey = settings.value("Session").toString();
scrobbling_enabled_ = settings.value("ScrobblingEnabled", true).toBool();
buttons_visible_ = settings.value("ShowLoveBanButtons", true).toBool();
scrobble_button_visible_ = settings.value("ShowScrobbleButton", true).toBool();
//avoid emitting signal if it's not changed
if(scrobbling_enabled_old != scrobbling_enabled_)
emit ScrobblingEnabledChanged(scrobbling_enabled_);
emit ButtonVisibilityChanged(buttons_visible_);
emit ScrobbleButtonVisibilityChanged(scrobble_button_visible_);
}
void LastFMService::ShowConfig() {
emit OpenSettingsAtPage(SettingsDialog::Page_Lastfm);
}
bool LastFMService::IsAuthenticated() const {
return !lastfm::ws::SessionKey.isEmpty();
}
bool LastFMService::IsSubscriber() const {
QSettings settings;
settings.beginGroup(kSettingsGroup);
return settings.value("Subscriber", false).toBool();
}
QStandardItem* LastFMService::CreateRootItem() {
QStandardItem* item = new QStandardItem(QIcon(":last.fm/as.png"), kServiceName);
item->setData(true, RadioModel::Role_CanLazyLoad);
return item;
}
void LastFMService::LazyPopulate(QStandardItem* parent) {
switch (parent->data(RadioModel::Role_Type).toInt()) {
case RadioModel::Type_Service:
// Normal radio types
CreateStationItem(parent,
tr("My Recommendations"),
":last.fm/recommended_radio.png",
QUrl("lastfm://user/USERNAME/recommended"),
tr("My Last.fm Recommended Radio"));
CreateStationItem(parent,
tr("My Radio Station"),
":last.fm/personal_radio.png",
QUrl("lastfm://user/USERNAME/library"),
tr("My Last.fm Library"));
CreateStationItem(parent,
tr("My Mix Radio"),
":last.fm/loved_radio.png",
QUrl("lastfm://user/USERNAME/mix"),
tr("My Last.fm Mix Radio"));
CreateStationItem(parent,
tr("My Neighborhood"),
":last.fm/neighbour_radio.png",
QUrl("lastfm://user/USERNAME/neighbours"),
tr("My Last.fm Neighborhood"));
// Types that have children
artist_list_ = new QStandardItem(QIcon(":last.fm/icon_radio.png"), tr("Artist radio"));
artist_list_->setData(Type_Artists, RadioModel::Role_Type);
parent->appendRow(artist_list_);
tag_list_ = new QStandardItem(QIcon(":last.fm/icon_tag.png"), tr("Tag radio"));
tag_list_->setData(Type_Tags, RadioModel::Role_Type);
parent->appendRow(tag_list_);
custom_list_ = new QStandardItem(QIcon(":last.fm/icon_radio.png"), tr("Custom radio"));
custom_list_->setData(Type_Custom, RadioModel::Role_Type);
parent->appendRow(custom_list_);
RestoreList("artists", kUrlArtist, tr(kTitleArtist), QIcon(":last.fm/icon_radio.png"), artist_list_);
RestoreList("tags", kUrlTag, tr(kTitleTag), QIcon(":last.fm/icon_tag.png"), tag_list_);
RestoreList("custom", kUrlCustom, tr(kTitleCustom), QIcon(":last.fm/icon_radio.png"), custom_list_);
friends_list_ = new QStandardItem(QIcon(":last.fm/my_friends.png"), tr("Friends"));
friends_list_->setData(Type_Friends, RadioModel::Role_Type);
friends_list_->setData(true, RadioModel::Role_CanLazyLoad);
parent->appendRow(friends_list_);
neighbours_list_ = new QStandardItem(QIcon(":last.fm/my_neighbours.png"), tr("Neighbors"));
neighbours_list_->setData(Type_Neighbours, RadioModel::Role_Type);
neighbours_list_->setData(true, RadioModel::Role_CanLazyLoad);
parent->appendRow(neighbours_list_);
if (!IsAuthenticated())
ShowConfig();
add_artist_action_->setEnabled(true);
add_tag_action_->setEnabled(true);
add_custom_action_->setEnabled(true);
break;
case Type_Friends:
RefreshFriends();
break;
case Type_Neighbours:
RefreshNeighbours();
break;
case Type_OtherUser:
CreateStationItem(parent,
tr("Last.fm Radio Station - %1").arg(parent->text()),
":last.fm/personal_radio.png",
QUrl("lastfm://user/" + parent->text() + "/library"),
tr("Last.fm Library - %1").arg(parent->text()));
CreateStationItem(parent,
tr("Last.fm Mix Radio - %1").arg(parent->text()),
":last.fm/loved_radio.png",
QUrl("lastfm://user/" + parent->text() + "/mix"),
tr("Last.fm Mix Radio - %1").arg(parent->text()));
CreateStationItem(parent,
tr("Last.fm Neighbor Radio - %1").arg(parent->text()),
":last.fm/neighbour_radio.png",
QUrl("lastfm://user/" + parent->text() + "/neighbours"),
tr("Last.fm Neighbor Radio - %1").arg(parent->text()));
break;
default:
break;
}
}
QStandardItem* LastFMService::CreateStationItem(
QStandardItem* parent, const QString& name, const QString& icon,
const QUrl& url, const QString& title) {
Song song;
song.set_url(url);
song.set_title(title);
QStandardItem* ret = new QStandardItem(QIcon(icon), name);
ret->setData(QVariant::fromValue(song), RadioModel::Role_SongMetadata);
ret->setData(RadioModel::PlayBehaviour_SingleItem, RadioModel::Role_PlayBehaviour);
parent->appendRow(ret);
return ret;
}
void LastFMService::Authenticate(const QString& username, const QString& password) {
QMap<QString, QString> params;
params["method"] = "auth.getMobileSession";
params["username"] = username;
params["authToken"] = lastfm::md5((username + lastfm::md5(password.toUtf8())).toUtf8());
QNetworkReply* reply = lastfm::ws::post(params);
connect(reply, SIGNAL(finished()), SLOT(AuthenticateReplyFinished()));
// If we need more detailed error reporting, handle error(NetworkError) signal
}
void LastFMService::SignOut() {
lastfm::ws::Username.clear();
lastfm::ws::SessionKey.clear();
QSettings settings;
settings.beginGroup(kSettingsGroup);
settings.setValue("Username", QString());
settings.setValue("Session", QString());
}
void LastFMService::AuthenticateReplyFinished() {
QNetworkReply* reply = qobject_cast<QNetworkReply*>(sender());
if (!reply) {
emit AuthenticationComplete(false);
return;
}
reply->deleteLater();
// Parse the reply
try {
lastfm::XmlQuery const lfm = lastfm::ws::parse(reply);
#ifdef Q_OS_WIN32
if (lastfm::ws::last_parse_error != lastfm::ws::NoError)
throw std::runtime_error("");
#endif
lastfm::ws::Username = lfm["session"]["name"].text();
lastfm::ws::SessionKey = lfm["session"]["key"].text();
QString subscribed = lfm["session"]["subscriber"].text();
const bool is_subscriber = (subscribed.toInt() == 1);
// Save the session key
QSettings settings;
settings.beginGroup(kSettingsGroup);
settings.setValue("Username", lastfm::ws::Username);
settings.setValue("Session", lastfm::ws::SessionKey);
settings.setValue("Subscriber", is_subscriber);
} catch (std::runtime_error& e) {
qLog(Error) << e.what();
emit AuthenticationComplete(false);
return;
}
// Invalidate the scrobbler - it will get recreated later
delete scrobbler_;
scrobbler_ = NULL;
emit AuthenticationComplete(true);
}
void LastFMService::UpdateSubscriberStatus() {
QMap<QString, QString> params;
params["method"] = "user.getInfo";
params["user"] = lastfm::ws::Username;
QNetworkReply* reply = lastfm::ws::post(params);
connect(reply, SIGNAL(finished()), SLOT(UpdateSubscriberStatusFinished()));
}
void LastFMService::UpdateSubscriberStatusFinished() {
QNetworkReply* reply = qobject_cast<QNetworkReply*>(sender());
Q_ASSERT(reply);
reply->deleteLater();
try {
const lastfm::XmlQuery lfm = lastfm::ws::parse(reply);
#ifdef Q_OS_WIN32
if (lastfm::ws::last_parse_error != lastfm::ws::NoError)
throw std::runtime_error("");
#endif
connection_problems_ = false;
QString subscriber = lfm["user"]["subscriber"].text();
const bool is_subscriber = (subscriber.toInt() == 1);
QSettings settings;
settings.beginGroup(kSettingsGroup);
settings.setValue("Subscriber", is_subscriber);
qLog(Info) << lastfm::ws::Username << "Subscriber status:" << is_subscriber;
emit UpdatedSubscriberStatus(is_subscriber);
} catch (lastfm::ws::ParseError e) {
// The connection to the server is unavailable
connection_problems_ = true;
qLog(Error) << "Last.fm parse error: " << e.enumValue();
emit UpdatedSubscriberStatus(false);
} catch (std::runtime_error& e) {
connection_problems_ = true;
qLog(Error) << e.what();
emit UpdatedSubscriberStatus(false);
}
}
QUrl LastFMService::FixupUrl(const QUrl& url) {
QUrl ret;
ret.setEncodedUrl(url.toEncoded().replace(
"USERNAME", QUrl::toPercentEncoding(lastfm::ws::Username)));
return ret;
}
QUrl LastFMService::DeququeNextMediaUrl() {
if (playlist_.empty()) {
return QUrl();
}
lastfm::MutableTrack track = playlist_.dequeue();
track.stamp();
already_scrobbled_ = false;
last_track_ = track;
if (playlist_.empty()) {
FetchMoreTracks();
}
next_metadata_ = track;
StreamMetadataReady();
return last_track_.url();
}
void LastFMService::StreamMetadataReady() {
Song metadata;
metadata.InitFromLastFM(next_metadata_);
if (art_urls_.contains(next_metadata_))
metadata.set_art_automatic(art_urls_[next_metadata_]);
emit StreamMetadataFound(last_url_, metadata);
}
void LastFMService::TunerError(lastfm::ws::Error error) {
qLog(Warning) << "Last.fm error" << error;
if (!initial_tune_)
return;
model()->task_manager()->SetTaskFinished(tune_task_id_);
tune_task_id_ = 0;
if (error == lastfm::ws::NotEnoughContent) {
url_handler_->TunerError();
return;
}
emit StreamError(ErrorString(error));
}
QString LastFMService::ErrorString(lastfm::ws::Error error) const {
switch (error) {
case lastfm::ws::InvalidService: return tr("Invalid service");
case lastfm::ws::InvalidMethod: return tr("Invalid method");
case lastfm::ws::AuthenticationFailed: return tr("Authentication failed");
case lastfm::ws::InvalidFormat: return tr("Invalid format");
case lastfm::ws::InvalidParameters: return tr("Invalid parameters");
case lastfm::ws::InvalidResourceSpecified: return tr("Invalid resource specified");
case lastfm::ws::OperationFailed: return tr("Operation failed");
case lastfm::ws::InvalidSessionKey: return tr("Invalid session key");
case lastfm::ws::InvalidApiKey: return tr("Invalid API key");
case lastfm::ws::ServiceOffline: return tr("Service offline");
case lastfm::ws::SubscribersOnly: return tr("This stream is for paid subscribers only");
case lastfm::ws::TryAgainLater: return tr("Last.fm is currently busy, please try again in a few minutes");
case lastfm::ws::NotEnoughContent: return tr("Not enough content");
case lastfm::ws::NotEnoughMembers: return tr("Not enough members");
case lastfm::ws::NotEnoughFans: return tr("Not enough fans");
case lastfm::ws::NotEnoughNeighbours: return tr("Not enough neighbors");
case lastfm::ws::MalformedResponse: return tr("Malformed response");
case lastfm::ws::UnknownError:
default:
return tr("Unknown error");
}
}
void LastFMService::TunerTrackAvailable() {
if (initial_tune_) {
url_handler_->TunerTrackAvailable();
initial_tune_ = false;
}
}
bool LastFMService::InitScrobbler() {
if (!IsAuthenticated() || !IsScrobblingEnabled())
return false;
if (!scrobbler_)
scrobbler_ = new lastfm::Audioscrobbler(kAudioscrobblerClientId);
//reemit the signal since the sender is private
connect(scrobbler_, SIGNAL(status(int)), SIGNAL(ScrobblerStatus(int)));
return true;
}
lastfm::Track LastFMService::TrackFromSong(const Song &song) const {
if (song.title() == last_track_.title() &&
song.artist() == last_track_.artist() &&
song.album() == last_track_.album())
return last_track_;
lastfm::Track ret;
song.ToLastFM(&ret);
return ret;
}
void LastFMService::NowPlaying(const Song &song) {
if (!InitScrobbler())
return;
// Scrobbling streams is difficult if we don't have length of each individual
// part. In Song::ToLastFm we set the Track's source to
// NonPersonalisedBroadcast if it's such a stream, so we have to scrobble it
// when we change to a different track, but only if enough time has elapsed
// since it started playing.
if (!last_track_.isNull() &&
last_track_.source() == lastfm::Track::NonPersonalisedBroadcast) {
const int duration_secs = last_track_.timestamp().secsTo(QDateTime::currentDateTime());
if (duration_secs >= ScrobblePoint::kScrobbleMinLength) {
lastfm::MutableTrack mtrack(last_track_);
mtrack.setDuration(duration_secs);
qLog(Info) << "Scrobbling stream track" << mtrack.title() << "length" << duration_secs;
scrobbler_->cache(mtrack);
scrobbler_->submit();
emit ScrobbledRadioStream();
}
}
lastfm::MutableTrack mtrack(TrackFromSong(song));
mtrack.stamp();
already_scrobbled_ = false;
last_track_ = mtrack;
//check immediately if the song is valid
Scrobble::Invalidity invalidity;
if (!lastfm::Scrobble(last_track_).isValid( &invalidity )) {
//for now just notify this, we can also see the cause
emit ScrobblerStatus(-1);
return;
}
scrobbler_->nowPlaying(mtrack);
}
void LastFMService::Scrobble() {
if (!InitScrobbler())
return;
scrobbler_->cache(last_track_);
// Let's mark a track as cached, useful when the connection is down
emit ScrobblerStatus(30);
scrobbler_->submit();
already_scrobbled_ = true;
}
void LastFMService::Love() {
if (!IsAuthenticated())
ShowConfig();
lastfm::MutableTrack mtrack(last_track_);
mtrack.love();
last_track_ = mtrack;
if (already_scrobbled_) {
// The love only takes effect when the song is scrobbled, but we've already
// scrobbled this one so we have to do it again.
Scrobble();
}
}
void LastFMService::Ban() {
lastfm::MutableTrack mtrack(last_track_);
mtrack.ban();
last_track_ = mtrack;
Scrobble();
model()->player()->Next();
}
void LastFMService::ShowContextMenu(const QModelIndex& index, const QPoint &global_pos) {
context_item_ = model()->itemFromIndex(index);
switch (index.parent().data(RadioModel::Role_Type).toInt()) {
case Type_Artists:
case Type_Tags:
case Type_Custom:
remove_action_->setEnabled(true);
break;
default:
remove_action_->setEnabled(false);
break;
}
const bool playable = model()->IsPlayable(index);
GetAppendToPlaylistAction()->setEnabled(playable);
GetReplacePlaylistAction()->setEnabled(playable);
GetOpenInNewPlaylistAction()->setEnabled(playable);
context_menu_->popup(global_pos);
}
void LastFMService::RefreshFriends() {
if (!friends_list_ || !IsAuthenticated())
return;
if (friends_list_->hasChildren())
friends_list_->removeRows(0, friends_list_->rowCount());
lastfm::AuthenticatedUser user;
QNetworkReply* reply = user.getFriends();
connect(reply, SIGNAL(finished()), SLOT(RefreshFriendsFinished()));
}
void LastFMService::RefreshNeighbours() {
if (!neighbours_list_ || !IsAuthenticated())
return;
if (neighbours_list_->hasChildren())
neighbours_list_->removeRows(0, neighbours_list_->rowCount());
lastfm::AuthenticatedUser user;
QNetworkReply* reply = user.getNeighbours();
connect(reply, SIGNAL(finished()), SLOT(RefreshNeighboursFinished()));
}
void LastFMService::RefreshFriendsFinished() {
QNetworkReply* reply = qobject_cast<QNetworkReply*>(sender());
if (!reply)
return;
QList<lastfm::User> friends;
try {
friends = lastfm::User::list(reply);
#ifdef Q_OS_WIN32
if (lastfm::ws::last_parse_error != lastfm::ws::NoError)
throw std::runtime_error("");
#endif
} catch (std::runtime_error& e) {
qLog(Error) << e.what();
return;
}
foreach (const lastfm::User& f, friends) {
Song song;
song.set_url(QUrl("lastfm://user/" + f.name() + "/library"));
song.set_title(tr("Last.fm Library - %1").arg(f.name()));
QStandardItem* item = new QStandardItem(QIcon(":last.fm/icon_user.png"), f.name());
item->setData(QVariant::fromValue(song), RadioModel::Role_SongMetadata);
item->setData(true, RadioModel::Role_CanLazyLoad);
item->setData(Type_OtherUser, RadioModel::Role_Type);
item->setData(RadioModel::PlayBehaviour_SingleItem, RadioModel::Role_PlayBehaviour);
friends_list_->appendRow(item);
}
}
void LastFMService::RefreshNeighboursFinished() {
QNetworkReply* reply = qobject_cast<QNetworkReply*>(sender());
if (!reply)
return;
QList<lastfm::User> neighbours;
try {
neighbours = lastfm::User::list(reply);
#ifdef Q_OS_WIN32
if (lastfm::ws::last_parse_error != lastfm::ws::NoError)
throw std::runtime_error("");
#endif
} catch (std::runtime_error& e) {
qLog(Error) << e.what();
return;
}
foreach (const lastfm::User& n, neighbours) {
Song song;
song.set_url(QUrl("lastfm://user/" + n.name() + "/library"));
song.set_title(tr("Last.fm Library - %1").arg(n.name()));
QStandardItem* item = new QStandardItem(QIcon(":last.fm/user_purple.png"), n.name());
item->setData(QVariant::fromValue(song), RadioModel::Role_SongMetadata);
item->setData(true, RadioModel::Role_CanLazyLoad);
item->setData(Type_OtherUser, RadioModel::Role_Type);
item->setData(RadioModel::PlayBehaviour_SingleItem, RadioModel::Role_PlayBehaviour);
neighbours_list_->appendRow(item);
}
}
QModelIndex LastFMService::GetCurrentIndex() {
return context_item_->index();
}
void LastFMService::AddArtistRadio() {
AddArtistOrTag("artists", LastFMStationDialog::Artist,
kUrlArtist, tr(kTitleArtist),
":last.fm/icon_radio.png", artist_list_);
}
void LastFMService::AddTagRadio() {
AddArtistOrTag("tags", LastFMStationDialog::Tag,
kUrlTag, tr(kTitleTag),
":last.fm/icon_tag.png", tag_list_);
}
void LastFMService::AddCustomRadio() {
AddArtistOrTag("custom", LastFMStationDialog::Custom,
kUrlCustom, tr(kTitleCustom),
":last.fm/icon_radio.png", custom_list_);
}
void LastFMService::AddArtistOrTag(const QString& name,
LastFMStationDialog::Type dialog_type,
const QString& url_pattern,
const QString& title_pattern,
const QString& icon, QStandardItem* list) {
station_dialog_->SetType(dialog_type);
if (station_dialog_->exec() == QDialog::Rejected)
return;
if (station_dialog_->content().isEmpty())
return;
QString content = station_dialog_->content();
QString url_content;
if (name == "custom")
url_content = content.toUtf8().toBase64();
else
url_content = content;
Song song;
song.set_url(QUrl(url_pattern.arg(url_content)));
song.set_title(title_pattern.arg(content));
QStandardItem* item = new QStandardItem(QIcon(icon), content);
item->setData(QVariant::fromValue(song), RadioModel::Role_SongMetadata);
item->setData(RadioModel::PlayBehaviour_SingleItem, RadioModel::Role_PlayBehaviour);
list->appendRow(item);
emit AddItemToPlaylist(item->index(), AddMode_Append);
SaveList(name, list);
}
void LastFMService::SaveList(const QString& name, QStandardItem* list) const {
QSettings settings;
settings.beginGroup(kSettingsGroup);
settings.beginWriteArray(name, list->rowCount());
for (int i=0 ; i<list->rowCount() ; ++i) {
settings.setArrayIndex(i);
settings.setValue("key", list->child(i)->text());
}
settings.endArray();
}
void LastFMService::RestoreList(const QString& name,
const QString& url_pattern,
const QString& title_pattern,
const QIcon& icon, QStandardItem* parent) {
QSettings settings;
settings.beginGroup(kSettingsGroup);
if (parent->hasChildren())
parent->removeRows(0, parent->rowCount());
int count = settings.beginReadArray(name);
for (int i=0 ; i<count ; ++i) {
settings.setArrayIndex(i);
QString content = settings.value("key").toString();
QString url_content;
if (name == "custom")
url_content = content.toUtf8().toBase64();
else
url_content = content;
Song song;
song.set_url(QUrl(url_pattern.arg(url_content)));
song.set_title(title_pattern.arg(content));
QStandardItem* item = new QStandardItem(icon, content);
item->setData(QVariant::fromValue(song), RadioModel::Role_SongMetadata);
item->setData(RadioModel::PlayBehaviour_SingleItem, RadioModel::Role_PlayBehaviour);
parent->appendRow(item);
}
settings.endArray();
}
void LastFMService::Remove() {
int type = context_item_->parent()->data(RadioModel::Role_Type).toInt();
context_item_->parent()->removeRow(context_item_->row());
if (type == Type_Artists)
SaveList("artists", artist_list_);
else if (type == Type_Tags)
SaveList("tags", tag_list_);
else if (type == Type_Custom)
SaveList("custom", custom_list_);
}
void LastFMService::FetchMoreTracks() {
QMap<QString, QString> params;
params["method"] = "radio.getPlaylist";
params["rtp"] = "1";
QNetworkReply* reply = lastfm::ws::post(params);
connect(reply, SIGNAL(finished()), SLOT(FetchMoreTracksFinished()));
}
void LastFMService::FetchMoreTracksFinished() {
QNetworkReply* reply = qobject_cast<QNetworkReply*>(sender());
if (!reply) {
qLog(Warning) << "Invalid reply on radio.getPlaylist";
url_handler_->TunerError();
return;
}
reply->deleteLater();
model()->task_manager()->SetTaskFinished(tune_task_id_);
tune_task_id_ = 0;
try {
const XmlQuery& query = lastfm::ws::parse(reply);
#ifdef Q_OS_WIN32
if (lastfm::ws::last_parse_error != lastfm::ws::NoError)
throw std::runtime_error("");
#endif
const XmlQuery& playlist = query["playlist"];
foreach (const XmlQuery& q, playlist["trackList"].children("track")) {
lastfm::MutableTrack t;
t.setUrl(q["location"].text());
t.setExtra("trackauth", q["extension"]["trackauth"].text());
t.setTitle(q["title"].text());
t.setArtist(q["creator"].text());
t.setAlbum(q["album"].text());
t.setDuration(q["duration"].text().toInt() / 1000);
t.setSource(lastfm::Track::LastFmRadio);
art_urls_[t] = q["image"].text();
playlist_ << t;
}
} catch (std::runtime_error& e) {
// For some reason a catch block that takes a lastfm::ws::ParseError&
// doesn't get called, even when a lastfm::ws::ParseError is thrown...
// Hacks like this remind me of Java...
if (QString(typeid(e).name()).contains("ParseError")) {
// dynamic_cast throws a std::bad_cast ... *boggle*
emit StreamError(tr("Couldn't load the last.fm radio station")
.arg(e.what()));
} else {
emit StreamError(tr("An unknown last.fm error occurred: %1").arg(e.what()));
}
return;
}
TunerTrackAvailable();
}
void LastFMService::Tune(const QUrl& url) {
if (!tune_task_id_)
tune_task_id_ = model()->task_manager()->StartTask(tr("Loading Last.fm radio"));
last_url_ = url;
initial_tune_ = true;
const lastfm::RadioStation station(FixupUrl(url));
playlist_.clear();
// Remove all the old album art URLs
art_urls_.clear();
QMap<QString, QString> params;
params["method"] = "radio.tune";
params["station"] = station.url();
QNetworkReply* reply = lastfm::ws::post(params);
connect(reply, SIGNAL(finished()), SLOT(TuneFinished()));
}
void LastFMService::TuneFinished() {
QNetworkReply* reply = qobject_cast<QNetworkReply*>(sender());
if (!reply) {
qLog(Warning) << "Invalid reply on radio.tune";
url_handler_->TunerError();
return;
}
FetchMoreTracks();
reply->deleteLater();
}
PlaylistItem::Options LastFMService::playlistitem_options() const {
return PlaylistItem::LastFMControls |
PlaylistItem::PauseDisabled;
}
PlaylistItemPtr LastFMService::PlaylistItemForUrl(const QUrl& url) {
// This is a bit of a hack, it's only used by the artist/song info tag
// widgets for tag radio and similar artists radio.
if (url.scheme() != "lastfm")
return PlaylistItemPtr();
QStringList sections(url.path().split("/", QString::SkipEmptyParts));
Song song;
song.set_url(url);
if (sections.count() == 2 && url.host() == "artist" && sections[1] == "similarartists") {
song.set_title(tr(kTitleArtist).arg(sections[0]));
} else if (sections.count() == 1 && url.host() == "globaltags") {
song.set_title(tr(kTitleTag).arg(sections[0]));
} else {
return PlaylistItemPtr();
}
return PlaylistItemPtr(new RadioPlaylistItem(this, song));
}
void LastFMService::ToggleScrobbling() {
//toggle status
scrobbling_enabled_ = !scrobbling_enabled_;
//save to the settings
QSettings s;
s.beginGroup(kSettingsGroup);
s.setValue("ScrobblingEnabled", scrobbling_enabled_);
s.endGroup();
emit ScrobblingEnabledChanged(scrobbling_enabled_);
}
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