Add tidal support

src/internet/internetservice.h

@@ -0,0 +1,64 @@
+/*
+ * Strawberry Music Player
+ * Copyright 2018, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * 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/>.
+ *
+ */
+
+#ifndef INTERNETSERVICE_H
+#define INTERNETSERVICE_H
+
+#include <QObject>
+#include <QStandardItem>
+#include <QAction>
+#include <QObject>
+#include <QList>
+#include <QString>
+#include <QUrl>
+
+#include "core/song.h"
+#include "playlist/playlistitem.h"
+#include "settings/settingsdialog.h"
+
+class Application;
+class InternetModel;
+class CollectionFilterWidget;
+
+class InternetService : public QObject {
+  Q_OBJECT
+
+ public:
+  InternetService(const QString &name, Application *app, InternetModel *model, QObject *parent = nullptr);
+  virtual ~InternetService() {}
+  QString name() const { return name_; }
+  InternetModel *model() const { return model_; }
+  virtual bool has_initial_load_settings() const { return false; }
+  virtual void InitialLoadSettings() {}
+  virtual void ReloadSettings() {}
+  virtual QString Icon() { return QString(); }
+
+ public slots:
+  virtual void ShowConfig() {}
+
+ protected:
+  Application *app_;
+ private:
+  InternetModel *model_;
+  QString name_;
+
+};
+Q_DECLARE_METATYPE(InternetService*);
+
+#endif