Add Subsonic support (#180)

src/settings/subsonicsettingspage.h

@@ -0,0 +1,60 @@
+/*
+ * Strawberry Music Player
+ * Copyright 2019, 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 SUBSONICSETTINGSPAGE_H
+#define SUBSONICSETTINGSPAGE_H
+
+#include <QObject>
+#include <QString>
+#include <QEvent>
+
+#include "settings/settingspage.h"
+
+class SubsonicService;
+class Ui_SubsonicSettingsPage;
+
+class SubsonicSettingsPage : public SettingsPage {
+  Q_OBJECT
+
+ public:
+  explicit SubsonicSettingsPage(SettingsDialog* parent = nullptr);
+  ~SubsonicSettingsPage();
+
+  static const char *kSettingsGroup;
+
+  void Load();
+  void Save();
+
+  bool eventFilter(QObject *object, QEvent *event);
+
+ signals:
+  void Test();
+  void Test(const QString &hostname, const int port, const QString &username, const QString &password);
+
+ private slots:
+  void TestClicked();
+  void TestSuccess();
+  void TestFailure(QString failure_reason);
+
+ private:
+  Ui_SubsonicSettingsPage* ui_;
+  SubsonicService *service_;
+};
+
+#endif  // SUBSONICSETTINGSPAGE_H