Clementine-audio-player-Mac.../src/songinfo/ultimatelyricsprovider.h

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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/>.
*/
#ifndef ULTIMATELYRICSPROVIDER_H
#define ULTIMATELYRICSPROVIDER_H
#include <QObject>
#include <QPair>
#include <QStringList>
#include "songinfoprovider.h"
class NetworkAccessManager;
class QNetworkReply;
class UltimateLyricsProvider : public SongInfoProvider {
Q_OBJECT
public:
UltimateLyricsProvider();
static const int kRedirectLimit;
typedef QPair<QString, QString> RuleItem;
typedef QList<RuleItem> Rule;
typedef QPair<QString, QString> UrlFormat;
void set_name(const QString& name) { name_ = name; }
void set_title(const QString& title) { title_ = title; }
void set_url(const QString& url) { url_ = url; }
void set_charset(const QString& charset) { charset_ = charset; }
void set_relevance(int relevance) { relevance_ = relevance; }
void add_url_format(const QString& replace, const QString& with) {
url_formats_ << UrlFormat(replace, with);
}
void add_extract_rule(const Rule& rule) { extract_rules_ << rule; }
void add_exclude_rule(const Rule& rule) { exclude_rules_ << rule; }
void add_invalid_indicator(const QString& indicator) {
invalid_indicators_ << indicator;
}
QString name() const { return name_; }
int relevance() const { return relevance_; }
void FetchInfo(int id, const Song& metadata);
private slots:
void LyricsFetched();
private:
bool ApplyExtractRule(const Rule& rule, QString* content) const;
void ApplyExcludeRule(const Rule& rule, QString* content) const;
static QString ExtractUrl(const QString& source, const Rule& rule);
static QString ExtractXmlTag(const QString& source, const QString& tag);
static QString Extract(const QString& source, const QString& begin,
const QString& end);
static QString ExcludeXmlTag(const QString& source, const QString& tag);
static QString Exclude(const QString& source, const QString& begin,
const QString& end);
static QString FirstChar(const QString& text);
static QString TitleCase(const QString& text);
static QString NoSpace(const QString& text);
static bool HTMLHasAlphaNumeric(const QString& html);
void ReplaceField(const QString& tag, const QString& value,
QString* text) const;
void ReplaceFields(const Song& metadata, QString* text) const;
private:
NetworkAccessManager* network_;
QMap<QNetworkReply*, int> requests_;
QString name_;
QString title_;
QString url_;
QString charset_;
int relevance_;
QList<UrlFormat> url_formats_;
QList<Rule> extract_rules_;
QList<Rule> exclude_rules_;
QStringList invalid_indicators_;
Song metadata_;
int redirect_count_;
bool url_hop_;
};
#endif // ULTIMATELYRICSPROVIDER_H