135 lines
4.2 KiB
C++
135 lines
4.2 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 "core/shared_ptr.h"
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#include "utilities/xmlutils.h"
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#include "settings/playlistsettingspage.h"
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#include "xmlparser.h"
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#include "wplparser.h"
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class CollectionBackendInterface;
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WplParser::WplParser(SharedPtr<CollectionBackendInterface> collection_backend, QObject *parent)
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: XMLParser(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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SongList WplParser::Load(QIODevice *device, const QString &playlist_path, const QDir &dir, const bool collection_search) const {
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Q_UNUSED(playlist_path);
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SongList ret;
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QXmlStreamReader reader(device);
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if (!Utilities::ParseUntilElement(&reader, QStringLiteral("smil")) || !Utilities::ParseUntilElement(&reader, QStringLiteral("body"))) {
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return ret;
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}
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while (!reader.atEnd() && Utilities::ParseUntilElement(&reader, QStringLiteral("seq"))) {
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ParseSeq(dir, &reader, &ret, collection_search);
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}
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return ret;
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}
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void WplParser::ParseSeq(const QDir &dir, QXmlStreamReader *reader, SongList *songs, const bool collection_search) 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 == QStringLiteral("media")) {
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QString src = reader->attributes().value(QStringLiteral("src")).toString();
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if (!src.isEmpty()) {
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Song song = LoadSong(src, 0, 0, dir, collection_search);
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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 == QStringLiteral("seq")) {
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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 SongList &songs, QIODevice *device, const QDir &dir, const PlaylistSettingsPage::PathType path_type) const {
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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(QStringLiteral("wpl"), QStringLiteral("version=\"1.0\""));
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StreamElement smil(QStringLiteral("smil"), &writer);
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{
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StreamElement head(QStringLiteral("head"), &writer);
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WriteMeta(QStringLiteral("Generator"), QStringLiteral("Strawberry -- ") + QLatin1String(STRAWBERRY_VERSION_DISPLAY), &writer);
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WriteMeta(QStringLiteral("ItemCount"), QString::number(songs.count()), &writer);
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}
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{
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StreamElement body(QStringLiteral("body"), &writer);
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{
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StreamElement seq(QStringLiteral("seq"), &writer);
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for (const Song &song : songs) {
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writer.writeStartElement(QStringLiteral("media"));
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writer.writeAttribute(QStringLiteral("src"), 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(QStringLiteral("meta"));
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writer->writeAttribute(QStringLiteral("name"), name);
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writer->writeAttribute(QStringLiteral("content"), content);
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writer->writeEndElement();
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}
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