Kodi checker rework (+enable option) (#96)

* big kodichecker rework

- use new logger
- 'enable' flag in config
- startable on runtime (atm not stoppable and no reconfigure)
- rename xbmc to kodi

* remove unnecceasry checks for kodi

* make kodichecker stoppable and add reconfigure

* tune config

include/kodivideochecker/KODIVideoChecker.h

@@ -0,0 +1,161 @@
+
+#pragma once
+
+// system includes
+#include <cstdint>
+#include <string>
+
+// QT includes
+#include <QTimer>
+#include <QString>
+#include <QTcpSocket>
+#include <QByteArray>
+
+// Hyperion includes
+#include <hyperion/Hyperion.h>
+
+// Utils includes
+#include <utils/GrabbingMode.h>
+#include <utils/VideoMode.h>
+#include <utils/Logger.h>
+
+///
+/// This class will check if KODI is playing something. When it does not, this class will send all black data to Hyperion.
+/// This allows grabbed screen data to be overriden while in the KODI menus.
+///
+/// Note: The json TCP server needs to be enabled manually in KODI in System/Settings/Network/Services
+///
+class KODIVideoChecker : public QObject
+{
+Q_OBJECT
+
+public:
+	static KODIVideoChecker* initInstance(const std::string & address, uint16_t port, bool grabVideo, bool grabPhoto, bool grabAudio, bool grabMenu, bool grabPause, bool grabScreensaver, bool enable3DDetection);
+	static KODIVideoChecker* getInstance();
+
+	~KODIVideoChecker();
+	void setConfig(const std::string & address, uint16_t port, bool grabVideo, bool grabPhoto, bool grabAudio, bool grabMenu, bool grabPause, bool grabScreensaver, bool enable3DDetection);
+
+public slots:
+	///
+	/// Start polling KODI
+	///
+	void start();
+
+	///
+	/// Stop polling KODI
+	///
+	void stop();
+
+signals:
+	/// Signal emitted when the grabbing mode changes
+	void grabbingMode(GrabbingMode grabbingMode);
+
+	/// Signal emitted when a 3D movie is detected
+	void videoMode(VideoMode videoMode);
+
+private slots:
+	/// Receive a reply from KODI
+	void receiveReply();
+
+	/// Called when connected to KODI
+	void connected();
+
+	/// Called when disconnected from KODI
+	void disconnected();
+
+	/// reconnect to KODI
+	void reconnect();
+
+	/// Called when a connection error was encountered
+	void connectionError(QAbstractSocket::SocketError error);
+
+private:
+	///
+	/// Constructor
+	///
+	/// @param address Network address of the KODI instance
+	/// @param port Port number to use (KODI default = 9090)
+	/// @param grabVideo Whether or not to grab when the KODI video player is playing
+	/// @param grabPhoto Whether or not to grab when the KODI photo player is playing
+	/// @param grabAudio Whether or not to grab when the KODI audio player is playing
+	/// @param grabMenu Whether or not to grab when nothing is playing (in KODI menu)
+	/// @param grabScreensaver Whether or not to grab when the KODI screensaver is activated
+	/// @param enable3DDetection Wheter or not to enable the detection of 3D movies playing
+	///
+	KODIVideoChecker(const std::string & address, uint16_t port, bool grabVideo, bool grabPhoto, bool grabAudio, bool grabMenu, bool grabPause, bool grabScreensaver, bool enable3DDetection);
+	
+	/// Set the grabbing mode
+	void setGrabbingMode(GrabbingMode grabbingMode);
+
+	void setScreensaverMode(bool isOnScreensaver);
+	
+	/// Set the video mode
+	void setVideoMode(VideoMode videoMode);
+
+private:
+	/// The network address of the KODI instance
+	QString _address;
+
+	/// The port number of KODI
+	uint16_t _port;
+
+	/// The JSON-RPC message to check the active player
+	const QString _activePlayerRequest;
+
+	/// The JSON-RPC message to check the currently playing file
+	const QString _currentPlayingItemRequest;
+
+	/// The JSON-RPC message to check the screensaver
+	const QString _checkScreensaverRequest;
+
+	/// The JSON-RPC message to check the active stereoscopicmode
+	const QString _getStereoscopicMode;
+
+	/// The JSON-RPC message to check the kodi version
+	QString _getKodiVersion;
+
+	/// The QT TCP Socket with connection to KODI
+	QTcpSocket _socket;
+
+	/// Flag indicating whether or not to grab when the KODI video player is playing
+	bool _grabVideo;
+
+	/// Flag indicating whether or not to grab when the KODI photo player is playing
+	bool _grabPhoto;
+
+	/// Flag indicating whether or not to grab when the KODI audio player is playing
+	bool _grabAudio;
+
+	/// Flag indicating whether or not to grab when KODI is playing nothing (in menu)
+	bool _grabMenu;
+
+	/// Flag indicating whether or not to grab when the KODI videoplayer is at pause state
+	bool _grabPause;
+	
+	/// Flag indicating whether or not to grab when the KODI screensaver is activated
+	bool _grabScreensaver;
+
+	/// Flag indicating wheter or not to enable the detection of 3D movies playing
+	bool _enable3DDetection;
+
+	/// Flag indicating if KODI is on screensaver
+	bool _previousScreensaverMode;
+	
+	/// Previous emitted grab mode
+	GrabbingMode _previousGrabbingMode;
+
+	/// Previous emitted video mode
+	VideoMode _previousVideoMode;
+
+	/// KODI version number
+	int _kodiVersion;
+
+	/// Logger Instance
+	Logger * _log;
+	
+	/// flag indicating state
+	bool _active;
+
+	static KODIVideoChecker* _kodichecker;
+};