139 lines
4.1 KiB
C++
139 lines
4.1 KiB
C++
/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2013, David Sansome <me@davidsansome.com>
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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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#include "version.h"
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#include <QtGlobal>
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#include <QObject>
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#include <QIODevice>
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#include <QDir>
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#include <QByteArray>
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#include <QString>
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#include <QXmlStreamReader>
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#include <QXmlStreamWriter>
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#include "includes/shared_ptr.h"
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#include "utilities/xmlutils.h"
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#include "constants/playlistsettings.h"
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#include "xmlparser.h"
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#include "wplparser.h"
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using namespace Qt::Literals::StringLiterals;
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class CollectionBackendInterface;
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WplParser::WplParser(const SharedPtr<TagReaderClient> tagreader_client, const SharedPtr<CollectionBackendInterface> collection_backend, QObject *parent)
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: XMLParser(tagreader_client, collection_backend, parent) {}
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bool WplParser::TryMagic(const QByteArray &data) const {
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return data.contains("<?wpl") || data.contains("<smil>");
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}
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ParserBase::LoadResult WplParser::Load(QIODevice *device, const QString &playlist_path, const QDir &dir, const bool collection_lookup) const {
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Q_UNUSED(playlist_path);
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QXmlStreamReader reader(device);
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if (!Utilities::ParseUntilElement(&reader, u"smil"_s) || !Utilities::ParseUntilElement(&reader, u"body"_s)) {
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return LoadResult();
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}
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SongList songs;
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while (!reader.atEnd() && Utilities::ParseUntilElement(&reader, u"seq"_s)) {
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ParseSeq(dir, &reader, &songs, collection_lookup);
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}
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return songs;
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}
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void WplParser::ParseSeq(const QDir &dir, QXmlStreamReader *reader, SongList *songs, const bool collection_lookup) const {
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while (!reader->atEnd()) {
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QXmlStreamReader::TokenType type = reader->readNext();
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QString name = reader->name().toString();
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switch (type) {
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case QXmlStreamReader::StartElement:{
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if (name == "media"_L1) {
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QString src = reader->attributes().value("src"_L1).toString();
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if (!src.isEmpty()) {
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Song song = LoadSong(src, 0, 0, dir, collection_lookup);
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if (song.is_valid()) {
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songs->append(song);
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}
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}
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}
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else {
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Utilities::ConsumeCurrentElement(reader);
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}
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break;
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}
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case QXmlStreamReader::EndElement:{
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if (name == "seq"_L1) {
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return;
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}
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break;
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}
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default:
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break;
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}
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}
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}
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void WplParser::Save(const QString &playlist_name, const SongList &songs, QIODevice *device, const QDir &dir, const PlaylistSettings::PathType path_type) const {
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Q_UNUSED(playlist_name)
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QXmlStreamWriter writer(device);
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writer.setAutoFormatting(true);
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writer.setAutoFormattingIndent(2);
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writer.writeProcessingInstruction("wpl"_L1, "version=\"1.0\""_L1);
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StreamElement smil(u"smil"_s, &writer);
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{
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StreamElement head(u"head"_s, &writer);
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WriteMeta("Generator"_L1, "Strawberry -- "_L1 + QLatin1String(STRAWBERRY_VERSION_DISPLAY), &writer);
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WriteMeta("ItemCount"_L1, QString::number(songs.count()), &writer);
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}
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{
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StreamElement body(u"body"_s, &writer);
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{
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StreamElement seq(u"seq"_s, &writer);
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for (const Song &song : songs) {
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writer.writeStartElement("media"_L1);
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writer.writeAttribute("src"_L1, URLOrFilename(song.url(), dir, path_type));
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writer.writeEndElement();
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}
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}
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}
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}
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void WplParser::WriteMeta(const QString &name, const QString &content, QXmlStreamWriter *writer) {
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writer->writeStartElement("meta"_L1);
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writer->writeAttribute("name"_L1, name);
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writer->writeAttribute("content"_L1, content);
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writer->writeEndElement();
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}
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