Reworked the way qml create sliders

Use the qml MVC to populate a ListView with components based on a template
VolumeSlider. Should now handle potential disconnections, volume changes
by third-party and also fix the issue where sliders are set to 0 at
startup.

Change-Id: I2961d5a1584a121c473ece253faa90a747c64445
Signed-off-by: Loïc Collignon <loic.collignon@iot.bzh>

1 files changed, 61 insertions, 0 deletions

diff --git a/app/mixer.hpp b/app/mixer.hpp
new file mode 100644
index 0000000..73f31fc
--- /dev/null
+++ b/app/mixer.hpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2016 The Qt Company Ltd.
+ * Copyright (C) 2016,2017 Konsulko Group
+ * Copyright (C) 2018 IoT.bzh
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#pragma once
+
+#include <QObject>
+#include <QString>
+#include <QSharedPointer>
+#include <QList>
+#include <QMap>
+#include "qafbwebsocketclient.h"
+#include "audiorole.hpp"
+
+class Mixer
+	: public QObject
+{
+	Q_OBJECT
+	Q_PROPERTY(QList<QObject*> roles READ roles NOTIFY rolesChanged)
+
+private:
+	QUrl m_url;
+	QList<QObject*> m_roles;
+	QAfbWebsocketClient m_client;
+
+public:
+	explicit Mixer(QObject* parent = nullptr);
+	Mixer(const Mixer&) = delete;
+
+	Q_INVOKABLE void open(const QUrl& url);
+	Q_INVOKABLE QList<QObject*> roles() const;
+	Q_INVOKABLE void getRoleVolume(AudioRole* role);
+	Q_INVOKABLE void setRoleVolume(AudioRole* role);
+
+signals:
+	void rolesChanged();
+	void volumeChanged(const QString& name, int value);
+
+private slots:
+	void onClientConnected();
+	void onClientDisconnected();
+	void onClientError(QAbstractSocket::SocketError se);
+	void onClientEventReceived(QString eventName, const QJsonValue& data);
+
+	void onRoleValueChanged();
+
+	void TryOpen();
+};