91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
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/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2010, David Sansome <me@davidsansome.com>
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* Copyright 2012, Martin Björklund <mbj4668@gmail.com>
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* Copyright 2016, Jonas Kvinge <jonas@jkvinge.net>
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef DISCOGSCOVERPROVIDER_H
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#define DISCOGSCOVERPROVIDER_H
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#include "config.h"
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#include <QXmlStreamReader>
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#include <QNetworkReply>
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#include "coverprovider.h"
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class QNetworkAccessManager;
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// This struct represents a single search-for-cover request. It identifies and describes the request.
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struct DiscogsCoverSearchContext {
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enum State { State_Init, State_MastersRequested, State_ReleasesRequested };
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// the unique request identifier
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int id;
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// the search query
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QString artist;
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QString album;
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State state;
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CoverSearchResults results;
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};
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Q_DECLARE_METATYPE(DiscogsCoverSearchContext)
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class DiscogsCoverProvider : public CoverProvider {
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Q_OBJECT
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public:
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explicit DiscogsCoverProvider(QObject *parent = nullptr);
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static const char *kUrl;
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static const char *kRequestTokenURL;
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static const char *kAuthorizeURL;
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static const char *kAccessTokenURL;
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static const char *kAccessKey;
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static const char *kSecretAccessKey;
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static const char *kAccessKeyB64;
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static const char *kSecretAccessKeyB64;
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bool StartSearch(const QString &artist, const QString &album, int id);
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void CancelSearch(int id);
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private slots:
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void QueryError(QNetworkReply::NetworkError error, QNetworkReply *reply, int id);
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void HandleSearchReply(QNetworkReply* reply, int id);
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private:
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QNetworkAccessManager *network_;
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QHash<int, DiscogsCoverSearchContext*> pending_requests_;
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void SendSearchRequest(DiscogsCoverSearchContext *ctx);
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void ReadItem(QXmlStreamReader *reader, CoverSearchResults *results);
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void ReadLargeImage(QXmlStreamReader *reader, CoverSearchResults *results);
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void QueryFinished(QNetworkReply *reply, int id);
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void EndSearch(DiscogsCoverSearchContext *ctx);
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};
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#endif // DISCOGSCOVERPROVIDER_H
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