Initial commit.

src/playlistparsers/wplparser.cpp

@@ -0,0 +1,120 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2013, David Sansome <me@davidsansome.com>
+ *
+ * Strawberry 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.
+ *
+ * Strawberry 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 Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ * 
+ */
+
+#include "config.h"
+
+#include "wplparser.h"
+#include "core/utilities.h"
+#include "version.h"
+
+#include <QXmlStreamReader>
+
+WplParser::WplParser(CollectionBackendInterface *collection, QObject *parent)
+    : XMLParser(collection, parent) {}
+
+bool WplParser::TryMagic(const QByteArray &data) const {
+  return data.contains("<?wpl") || data.contains("<smil>");
+}
+
+SongList WplParser::Load(QIODevice *device, const QString &playlist_path, const QDir &dir) const {
+
+  SongList ret;
+
+  QXmlStreamReader reader(device);
+  if (!Utilities::ParseUntilElement(&reader, "smil") || !Utilities::ParseUntilElement(&reader, "body")) {
+    return ret;
+  }
+
+  while (!reader.atEnd() && Utilities::ParseUntilElement(&reader, "seq")) {
+    ParseSeq(dir, &reader, &ret);
+  }
+  return ret;
+
+}
+
+void WplParser::ParseSeq(const QDir &dir, QXmlStreamReader *reader, SongList *songs) const {
+
+  while (!reader->atEnd()) {
+    QXmlStreamReader::TokenType type = reader->readNext();
+    switch (type) {
+      case QXmlStreamReader::StartElement: {
+        QStringRef name = reader->name();
+        if (name == "media") {
+          QStringRef src = reader->attributes().value("src");
+          if (!src.isEmpty()) {
+            Song song = LoadSong(src.toString(), 0, dir);
+            if (song.is_valid()) {
+              songs->append(song);
+            }
+          }
+        } else {
+          Utilities::ConsumeCurrentElement(reader);
+        }
+        break;
+      }
+      case QXmlStreamReader::EndElement: {
+        if (reader->name() == "seq") {
+          return;
+        }
+        break;
+      }
+      default:
+        break;
+    }
+  }
+
+}
+
+void WplParser::Save(const SongList &songs, QIODevice *device, const QDir &dir, Playlist::Path path_type) const {
+
+  QXmlStreamWriter writer(device);
+  writer.setAutoFormatting(true);
+  writer.setAutoFormattingIndent(2);
+  writer.writeProcessingInstruction("wpl", "version=\"1.0\"");
+
+  StreamElement smil("smil", &writer);
+
+  {
+    StreamElement head("head", &writer);
+    WriteMeta("Generator", "Strawberry -- " STRAWBERRY_VERSION_DISPLAY, &writer);
+    WriteMeta("ItemCount", QString::number(songs.count()), &writer);
+  }
+
+  {
+    StreamElement body("body", &writer);
+    {
+      StreamElement seq("seq", &writer);
+      for (const Song &song : songs) {
+        writer.writeStartElement("media");
+        writer.writeAttribute("src", URLOrFilename(song.url(), dir, path_type));
+        writer.writeEndElement();
+      }
+    }
+  }
+}
+
+void WplParser::WriteMeta(const QString &name, const QString &content, QXmlStreamWriter *writer) const {
+
+  writer->writeStartElement("meta");
+  writer->writeAttribute("name", name);
+  writer->writeAttribute("content", content);
+  writer->writeEndElement();
+
+}