Add back Tidal support

src/tidal/tidalurlhandler.cpp

@@ -0,0 +1,68 @@
+/*
+ * 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/>.
+ *
+ */
+
+#include "config.h"
+
+#include <QObject>
+#include <QString>
+#include <QUrl>
+
+#include "core/application.h"
+#include "core/taskmanager.h"
+#include "core/song.h"
+#include "tidal/tidalservice.h"
+#include "tidalurlhandler.h"
+
+TidalUrlHandler::TidalUrlHandler(Application *app, TidalService *service) :
+  UrlHandler(service),
+  app_(app),
+  service_(service),
+  task_id_(-1)
+  {
+
+  connect(service, SIGNAL(StreamURLFinished(QUrl, QUrl, Song::FileType, int, int, qint64, QString)), this, SLOT(GetStreamURLFinished(QUrl, QUrl, Song::FileType, int, int, qint64, QString)));
+
+}
+
+UrlHandler::LoadResult TidalUrlHandler::StartLoading(const QUrl &url) {
+
+  LoadResult ret(url);
+  if (task_id_ != -1) return ret;
+  task_id_ = app_->task_manager()->StartTask(QString("Loading %1 stream...").arg(url.scheme()));
+  service_->GetStreamURL(url);
+  ret.type_ = LoadResult::WillLoadAsynchronously;
+  return ret;
+
+}
+
+void TidalUrlHandler::GetStreamURLFinished(const QUrl &original_url, const QUrl &stream_url, const Song::FileType filetype, const int samplerate, const int bit_depth, const qint64 duration, QString error) {
+
+  if (task_id_ == -1) return;
+  CancelTask();
+  if (error.isEmpty())
+    emit AsyncLoadComplete(LoadResult(original_url, LoadResult::TrackAvailable, stream_url, filetype, samplerate, bit_depth, duration));
+  else
+    emit AsyncLoadComplete(LoadResult(original_url, LoadResult::Error, stream_url, filetype, -1, -1, -1, error));
+
+}
+
+void TidalUrlHandler::CancelTask() {
+  app_->task_manager()->SetTaskFinished(task_id_);
+  task_id_ = -1;
+}