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/**
* Copyright (C) 2012 Martin Sandsmark <martin.sandsmark@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 "lyricswidget.h"
#include <KActionCollection>
#include <KConfigGroup>
#include <KLocalizedString>
#include <KSharedConfig>
#include <KToggleAction>
#include <QAction>
#include <QDomDocument>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QUrlQuery>
#include "actioncollection.h"
#include "iconsupport.h"
#include "juk_debug.h"
#include "juktag.h"
static const QUrl BASE_LYRICS_URL = QUrl("https://lyrics.fandom.com/");
using namespace IconSupport; // ""_icon
using namespace ActionCollection; // ""_act
LyricsWidget::LyricsWidget(QWidget* parent)
: QTextBrowser(parent)
, m_networkAccessManager(new QNetworkAccessManager)
, m_lyricsCurrent(false)
{
setMinimumWidth(200);
setReadOnly(true);
setWordWrapMode(QTextOption::WordWrap);
setOpenExternalLinks(true);
KToggleAction *show = new KToggleAction("view-media-lyrics"_icon,
i18n("Show &Lyrics"), this);
ActionCollection::actions()->addAction("showLyrics", show);
connect(show, SIGNAL(toggled(bool)), this, SLOT(setVisible(bool)));
KConfigGroup config(KSharedConfig::openConfig(), "LyricsWidget");
bool shown = config.readEntry("Show", true);
show->setChecked(shown);
setVisible(shown);
}
LyricsWidget::~LyricsWidget()
{
delete m_networkAccessManager;
saveConfig();
}
void LyricsWidget::saveConfig()
{
KConfigGroup config(KSharedConfig::openConfig(), "LyricsWidget");
config.writeEntry("Show", "showLyrics"_act->isChecked());
}
void LyricsWidget::makeLyricsRequest()
{
m_lyricsCurrent = true;
if(m_playingFile.isNull()) {
setHtml(i18n("<i>No file playing.</i>"));
return;
}
m_title = m_playingFile.tag()->artist() + " – " + m_playingFile.tag()->title();
setHtml(i18n("<i>Loading...</i>"));
// lyrics.fandom.com seems to be unavailable as well now so give a better error message
// and stop pinging the server
if(1) {
setHtml(i18n("<i>Lyrics are currently unavailable for %1 (no available lyrics provider)</i>", m_title));
return;
}
QUrl listUrl = BASE_LYRICS_URL;
listUrl.setPath("/api.php");
QUrlQuery listUrlQuery;
listUrlQuery.addQueryItem("action", "lyrics");
listUrlQuery.addQueryItem("func", "getSong");
listUrlQuery.addQueryItem("fmt", "xml");
listUrlQuery.addQueryItem("artist", m_playingFile.tag()->artist());
listUrlQuery.addQueryItem("song", m_playingFile.tag()->title());
listUrl.setQuery(listUrlQuery);
connect(m_networkAccessManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(receiveListReply(QNetworkReply*)));
m_networkAccessManager->get(QNetworkRequest(listUrl));
}
void LyricsWidget::playing(const FileHandle &file)
{
m_playingFile = file;
m_lyricsCurrent = false;
if(isVisible()) {
makeLyricsRequest();
}
}
void LyricsWidget::showEvent(QShowEvent *)
{
if(!m_lyricsCurrent) {
makeLyricsRequest();
}
}
void LyricsWidget::receiveListReply(QNetworkReply* reply)
{
disconnect(m_networkAccessManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(receiveListReply(QNetworkReply*)));
if (reply->error() != QNetworkReply::NoError) {
qCWarning(JUK_LOG) << "Error while fetching lyrics: " << reply->errorString();
setHtml(i18n("<span style='color:red'>Error while retrieving lyrics!</span>"));
return;
}
QDomDocument document;
document.setContent(reply);
QString artist = document.elementsByTagName("artist").at(0).toElement().text();
QString title = document.elementsByTagName("song").at(0).toElement().text();
QUrl url = BASE_LYRICS_URL;
url.setPath("/api.php");
QUrlQuery urlQuery;
urlQuery.addQueryItem("action", "query");
urlQuery.addQueryItem("prop", "revisions");
urlQuery.addQueryItem("rvprop", "content");
urlQuery.addQueryItem("format", "xml");
urlQuery.addQueryItem("titles", artist + ':' + title);
url.setQuery(urlQuery);
connect(m_networkAccessManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(receiveLyricsReply(QNetworkReply*)));
m_networkAccessManager->get(QNetworkRequest(url));
}
void LyricsWidget::receiveLyricsReply(QNetworkReply* reply)
{
disconnect(m_networkAccessManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(receiveLyricsReply(QNetworkReply*)));
if (reply->error() != QNetworkReply::NoError) {
qCWarning(JUK_LOG) << "Error while fetching lyrics: " << reply->errorString();
setHtml(i18n("<span style='color:red'>Error while retrieving lyrics!</span>"));
return;
}
const QUrlQuery replyUrlQuery(reply->url());
QString titlesUrlPart = replyUrlQuery.queryItemValue(QStringLiteral("titles"), QUrl::FullyEncoded);
if (titlesUrlPart.isEmpty()) {
// default homepage, but this code path should never happen at this point.
titlesUrlPart = QStringLiteral("Lyrics_Wiki");
}
const QString lyricsUrl = BASE_LYRICS_URL.toString() + QStringLiteral("wiki/") + titlesUrlPart;
QString content = QString::fromUtf8(reply->readAll());
int lIndex = content.indexOf("<lyrics>");
int rIndex = content.indexOf("</lyrics>");
if (lIndex == -1 || rIndex == -1) {
qCWarning(JUK_LOG) << Q_FUNC_INFO << "Unable to find lyrics in text";
setText(i18n("No lyrics available."));
return;
}
lIndex += 15; // We skip the tag
content = content.mid(lIndex, rIndex - lIndex).trimmed();
content.replace('\n', "<br />");
//setText(content);
setHtml("<h1>" + m_title + "</h1>" +
content +
i18n("<br /><br /><i>Lyrics provided by <a href='%1'>LyricWiki</a></i>", lyricsUrl));
}
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