mDNS Support (#1452)

* Allow build, if no grabbers are enabled

* Align available functions to right Qt version

* Update to next development version

* Align available functions to right Qt version

* fix workflows (apt/nightly)

* Disable QNetworkConfigurationManager deprecation warnings

* Initial go on Smart Pointers

* Add Deallocation

* Correct QT_WARNING_DISABLE_DEPRECATED (available since 5.9)

* Cluster Build Variables

* Hyperion Light

* Address build warnings

* Hyperion Light - UI

* Update Protobuf to latest master

* Removed compiler warnings

* Added restart ability to systray

* Correct Protobuf

* Ignore 'no-return' warning on protobuf build

* hyperion-remote: Fix auto discovery of hyperion server

* Fix Qt version override

* Update changelog

* Remove Grabber Components, if no Grabber exists

* Standalone Grabber - Fix fps default

* Remote Control - Have Source Selction accrosswhole screen

* Enable Blackborder detection only, if relevant input sources available

* Enable Blackborder detection only, if relevant input sources available

* Remote UI - rearrange containers

* Checkout

* Fix compilation on windows

* Re-added qmdnsengine template cmake

* chrono added for linux

* Removed existing AVAHI/Bonjour, allow to enable/disable mDNS

* hyperiond macos typo fix

* Fix macOS Bundle build

* Fix macOS bundle info details

* Correct CMake files

* Removed existing AVAHI/Bonjour (2)

* Share hyperion's services via mDNS

* Add mDNS Browser and mDNS for LED-Devices

* Support mDNS discovery for standalone grabbers

* Remove ZLib Dependency & Cleanup

* mDNS - hanle 2.local2 an ".local." domains equally

* Hue - Link discovery to bridge class, workaround port 443 for mDNS discovery

* Fix save button state when switching between devices

* Removed sessions (of other hyperions)

* mDNS Publisher - Simplify service naming

* mDNS refactoring & Forwarder discovery

* mDNS Updates to use device service name

* Consistency of standalone grabbers with mDNS Service Registry

* Merge branch 'hyperion-project:master' into mDNS

* Start JSON and WebServers only after Instance 0 is available

* Remove bespoke qDebug Output again

* MDNS updates and refactor Forwarder

* Minor updates

* Upgrade to CMake 3.1

* typo

* macOS fix

* Correct merge

* - Remove dynamic linker flag from standalone dispmanX Grabber
- Added ability to use system qmdns libs

* Cec handler library will load at runtime

* typo fix

* protobuf changes

* mDNS changes for Windows/macOS

* test window build qmdnsengine

* absolute path to protobuf cmake dir

* Rework Hue Wizard supporting mDNS

* LED-Devices - Retry support + Refactoring (excl. Hue)

* LED-Devices - Refactoring/Retry support Hue + additional alignments

* Address LGTM findings

* Fix CI-Build, revert test changes

* Build Windows in Release mode to avoid python problem

* Correct that WebServerObject is available earlier

* Ensure that instance name in logs for one instance are presented

* Update content LEDs

* Rework mDNS Address lookup

* Fix LED UI

* Fix for non mDNS Services (ignore default port)

* Disbale device when now input is available

* Revert back some updates, ensure last color is updated when switched on

* Handle reopening case and changed IP, port for API-calls

* Add UPD-DDP Device

* WLED support for DDP

* Fix printout

* LEDDevice - Allow more retries, udapte defaults

* LED-Net Devices - Select Custom device, if configured

Co-authored-by: Paulchen Panther <16664240+Paulchen-Panther@users.noreply.github.com>
Co-authored-by: Paulchen Panther <Paulchen-Panter@protonmail.com>

include/forwarder/MessageForwarder.h

@@ -28,6 +28,17 @@
 class Hyperion;
 class QTcpSocket;
 class FlatBufferConnection;
+class MessageForwarderFlatbufferClientsHelper;
+
+struct TargetHost {
+	QHostAddress host;
+	quint16 port;
+
+	bool operator == (TargetHost const& a) const
+	{
+		return ((host == a.host) && (port == a.port));
+	}
+};
 
 class MessageForwarder : public QObject
 {
@@ -39,14 +50,15 @@ public:
 	void addJsonTarget(const QJsonObject& targetConfig);
 	void addFlatbufferTarget(const QJsonObject& targetConfig);
 
-private slots:
+public slots:
 	///
 	/// @brief Handle settings update from Hyperion Settingsmanager emit or this constructor
-	/// @param type   settingyType from enum
+	/// @param type   settingsType from enum
 	/// @param config configuration object
 	///
 	void handleSettingsUpdate(settings::type type, const QJsonDocument &config);
 
+private slots:
 	///
 	/// @brief Handle component state change MessageForwarder
 	/// @param component  The component from enum
@@ -81,15 +93,13 @@ private slots:
 
 private:
 
-	struct TargetHost {
-		QHostAddress host;
-		quint16 port;
+	void enableTargets(bool enable, const QJsonObject& config);
 
-		bool operator == (TargetHost const& a) const
-		{
-			return ((host == a.host) && (port == a.port));
-		}
-	};
+	int startJsonTargets(const QJsonObject& config);
+	void stopJsonTargets();
+
+	int startFlatbufferTargets(const QJsonObject& config);
+	void stopFlatbufferTargets();
 
 	/// Hyperion instance
 	Hyperion *_hyperion;
@@ -105,10 +115,37 @@ private:
 
 	/// Flatbuffer connection for forwarding
 	QList<TargetHost> _flatbufferTargets;
-	QList<FlatBufferConnection*> _forwardClients;
 
 	/// Flag if forwarder is enabled
 	bool _forwarder_enabled = true;
 
 	const int _priority;
+
+	MessageForwarderFlatbufferClientsHelper* _messageForwarderFlatBufHelper;
+};
+
+class MessageForwarderFlatbufferClientsHelper : public QObject
+{
+	Q_OBJECT
+
+
+public:
+	MessageForwarderFlatbufferClientsHelper();
+	~MessageForwarderFlatbufferClientsHelper();
+
+signals:
+	void addClient(const QString& origin, const TargetHost& targetHost, int priority, bool skipReply);
+	void clearClients();
+
+public slots:
+	bool isFree() const;
+
+	void forwardImage(const Image<ColorRgb>& image);
+	void addClientHandler(const QString& origin, const TargetHost& targetHost, int priority, bool skipReply);
+	void clearClientsHandler();
+
+private:
+
+	QList<FlatBufferConnection*> _forwardClients;
+	bool _free;
 };