Add Deezer support

src/deezer/deezerurlhandler.cpp

@@ -0,0 +1,65 @@
+/*
+ * 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 <QObject>
+#include <QString>
+#include <QUrl>
+
+#include "core/application.h"
+#include "core/taskmanager.h"
+#include "core/iconloader.h"
+#include "core/logging.h"
+#include "core/song.h"
+#include "deezer/deezerservice.h"
+#include "deezerurlhandler.h"
+
+DeezerUrlHandler::DeezerUrlHandler(
+    Application *app, DeezerService *service)
+    : UrlHandler(service), app_(app), service_(service), task_id_(-1) {
+
+  connect(service, SIGNAL(StreamURLReceived(QUrl, QUrl, Song::FileType)), this, SLOT(GetStreamURLFinished(QUrl, QUrl, Song::FileType)));
+
+}
+
+UrlHandler::LoadResult DeezerUrlHandler::StartLoading(const QUrl &url) {
+
+  LoadResult ret(url);
+  if (task_id_ != -1) return ret;
+  last_original_url_ = url;
+  task_id_ = app_->task_manager()->StartTask(QString("Loading %1 stream...").arg(url.scheme()));
+  service_->GetStreamURL(url);
+  ret.type_ = LoadResult::WillLoadAsynchronously;
+  return ret;
+
+}
+
+void DeezerUrlHandler::GetStreamURLFinished(QUrl original_url, QUrl media_url, Song::FileType filetype) {
+
+  if (task_id_ == -1) return;
+  CancelTask();
+  emit AsyncLoadComplete(LoadResult(original_url, LoadResult::TrackAvailable, media_url, filetype));
+
+}
+
+void DeezerUrlHandler::CancelTask() {
+
+  app_->task_manager()->SetTaskFinished(task_id_);
+  task_id_ = -1;
+
+}