--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/viewframework/tvout/src/glxtvconnectionmonitor.cpp	Wed Sep 01 12:33:26 2010 +0100
@@ -0,0 +1,290 @@
+/*
+* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:    Monitors the Tv Out Connection
+*
+*/
+
+
+
+/**
+ * @internal reviewed 24/08/2007 by D Holland
+ */
+
+//  CLASS HEADER
+#include "glxtvconnectionmonitor.h"
+
+//  EXTERNAL INCLUDES
+
+//  INTERNAL INCLUDES
+
+#include <glxlog.h>
+#include <glxtracer.h>
+#include <glxpanic.h>
+#include "glxtv.h"
+#include <AccPolGenericIdDefinitions.h>
+#include <AccPolSubblockNameArray.h>
+//-----------------------------------------------------------------------------
+// Return new object
+//-----------------------------------------------------------------------------
+//
+CGlxTvConnectionMonitor* CGlxTvConnectionMonitor::NewL(
+                               MGlxTvConnectionObserver& aConnectionObserver ) 
+    {
+    TRACER("CGlxTvConnectionMonitor::NewL");
+    CGlxTvConnectionMonitor* self = new (ELeave) 
+                CGlxTvConnectionMonitor( aConnectionObserver );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+    
+
+//-----------------------------------------------------------------------------
+// Destructor
+//-----------------------------------------------------------------------------
+//
+CGlxTvConnectionMonitor::~CGlxTvConnectionMonitor()
+    {
+    TRACER("~CGlxTvConnectionMonitor");
+    Cancel();
+    iTvAccCon.CloseSubSession();
+    iTvAccServer.Disconnect();
+    }
+
+
+//-----------------------------------------------------------------------------
+// Default C++ constructor
+//-----------------------------------------------------------------------------
+//
+CGlxTvConnectionMonitor::CGlxTvConnectionMonitor(
+		MGlxTvConnectionObserver& aConnectionObserver) :
+	CActive(EPriorityStandard), iConnectionObserver(aConnectionObserver),
+			iTvOutConnectionState(EFalse), iHDMIConnectionState(EFalse),
+			iHeadSetConnectionState(EFalse)
+
+	{
+	TRACER("CGlxTvConnectionMonitor");
+	CActiveScheduler::Add(this);
+	}
+
+
+//-----------------------------------------------------------------------------
+// Symbian second phase constructor
+//-----------------------------------------------------------------------------
+//
+void CGlxTvConnectionMonitor::ConstructL()
+    {
+    TRACER("CGlxTvConnectionMonitor::ConstructL");
+    User::LeaveIfError(iTvAccServer.Connect());
+	User::LeaveIfError(iTvAccCon.CreateSubSession(iTvAccServer));
+
+	UpdateConnectionStatusL();
+	IssueRequest();  
+    }
+
+//-----------------------------------------------------------------------------
+// From class CActive.
+// Receive notification of change in the connection state
+//-----------------------------------------------------------------------------
+//
+void CGlxTvConnectionMonitor::RunL()
+    {
+    TRACER("CGlxTvConnectionMonitor::RunL");
+    // Check for errors
+    User::LeaveIfError( iStatus.Int() );
+    // Notify observers
+    IssueNotificationL();
+    // Request the next event
+    IssueRequest();  
+    }
+
+
+//-----------------------------------------------------------------------------
+// From class CActive.
+// DoCancel
+//-----------------------------------------------------------------------------
+//
+void CGlxTvConnectionMonitor::DoCancel()
+    {
+    TRACER("CGlxTvConnectionMonitor::DoCancel");
+    iTvAccCon.CancelGetAccessoryConnectionStatus();
+    iTvAccCon.CancelNotifyAccessoryConnectionStatusChanged();
+    }
+
+
+
+//-----------------------------------------------------------------------------
+// From class CActive.
+// RunError
+//-----------------------------------------------------------------------------
+//
+TInt CGlxTvConnectionMonitor::RunError(TInt aError)
+    {
+    GLX_LOG_INFO1("CGlxTvConnectionMonitor::RunError - %d", aError);
+    return KErrNone;
+    }
+
+//-----------------------------------------------------------------------------
+// Is the TV out cable connected
+// IsConnected
+//-----------------------------------------------------------------------------
+//
+TBool CGlxTvConnectionMonitor::IsConnected() const
+    {
+    TRACER("CGlxTvConnectionMonitor::IsConnected");
+    GLX_LOG_INFO1("CGlxTvConnectionMonitor::IsConnected iTvOutConnectionState=%d",iTvOutConnectionState);
+    return iTvOutConnectionState;
+    }
+
+//-----------------------------------------------------------------------------
+// Is the TV out cable connected
+// IsConnected
+//-----------------------------------------------------------------------------
+//
+TBool CGlxTvConnectionMonitor::IsHDMIConnected() const
+    {
+    TRACER("CGlxTvConnectionMonitor::IsHDMIConnected");
+    GLX_LOG_INFO1("CGlxTvConnectionMonitor::IsHDMIConnected iHDMIConnectionState=%d",iHDMIConnectionState);
+    return iHDMIConnectionState;
+    }
+
+//-----------------------------------------------------------------------------
+// Request accessory server events
+//-----------------------------------------------------------------------------
+//
+void CGlxTvConnectionMonitor::IssueRequest()
+    {
+    TRACER("CGlxTvConnectionMonitor::IssueRequest");
+    if (!IsActive()) // required for testing
+        {
+        iTvAccCon.NotifyAccessoryConnectionStatusChanged(iStatus,iCurrentAccArray);
+        SetActive(); 
+        }
+    }
+
+//-----------------------------------------------------------------------------
+// Sends notification to observers if TV Out is connected
+//-----------------------------------------------------------------------------
+//
+void CGlxTvConnectionMonitor::IssueNotificationL()
+	{
+	TRACER("CGlxTvConnectionMonitor::IssueNotificationL");
+	TBool previousTvState = iTvOutConnectionState;
+	TBool previousHDMIState = iHDMIConnectionState;
+	TBool previousHeadSetState = iHeadSetConnectionState;
+	TTvChangeType changeType = EDisconnected;
+	
+	// Update the connection status
+	UpdateConnectionStatusL();
+
+	// trigger tvstatus change only when there is actually a change the in the connection and not 
+	// for spurious events
+	if (previousTvState != iTvOutConnectionState)
+		{
+		changeType = iTvOutConnectionState == EFalse ? EDisconnected : ETvConnectionChanged;
+		GLX_LOG_INFO1("CGlxTvConnectionMonitor::IssueNotificationL - TVOut Connection Changed %d", changeType);
+		iConnectionObserver.HandleTvConnectionStatusChangedL(changeType);	
+		}
+	else if (previousHDMIState != iHDMIConnectionState)
+		{
+		changeType = iHDMIConnectionState == EFalse ? EDisconnected : ETvConnectionChanged;
+		GLX_LOG_INFO1("CGlxTvConnectionMonitor::IssueNotificationL - HDMI Connection Changed %d", changeType);
+		iConnectionObserver.HandleTvConnectionStatusChangedL(changeType);	
+		}
+	else if (previousHeadSetState != iHeadSetConnectionState)
+		{
+		changeType = iHeadSetConnectionState == EFalse ? EDisconnected : ETvConnectionChanged;
+		GLX_LOG_INFO1("CGlxTvConnectionMonitor::IssueNotificationL - Headset Connection Changed %d", changeType);
+		iConnectionObserver.HandleTvConnectionStatusChangedL(changeType);	
+		}
+	}
+
+//-----------------------------------------------------------------------------
+// UpdateConnectionStatusL()
+//-----------------------------------------------------------------------------
+//
+void CGlxTvConnectionMonitor::UpdateConnectionStatusL()
+    {
+	TRACER("CGlxTvConnectionMonitor::UpdateConnectionStatusL()");
+
+	GLX_LOG_INFO2("CGlxTvConnectionMonitor::UpdateConnectionStatusL previousTvState = %d , previousHDMIState = %d",
+			iTvOutConnectionState,iHDMIConnectionState);
+
+	// reset the states
+	iHDMIConnectionState = EFalse;
+	iTvOutConnectionState = EFalse;
+	iHeadSetConnectionState = EFalse;
+
+	//gets the TV status in to the iCurrentAccArray and haves the Latest Accesory in 0-index
+	User::LeaveIfError(iTvAccCon.GetAccessoryConnectionStatus(iCurrentAccArray));
+
+	CAccPolSubblockNameArray* nameArray = CAccPolSubblockNameArray::NewL();
+	CleanupStack::PushL(nameArray);
+
+	//  Get the number of currently connected accessories
+	//  Loop through each connected accessory looking for
+	//  the desired capabilities
+	//
+	const TInt count = iCurrentAccArray.Count();
+	GLX_LOG_INFO1("CGlxTvConnectionMonitor::UpdateConnectionStatusL current count value is %d",count);
+	for (TInt index = 0; index < count; index++)
+		{
+		const TAccPolGenericID genId = iCurrentAccArray.GetGenericIDL(index);
+		//  Check if this connected accessory supports TV-Out capabality.
+		GLX_LOG_INFO1("CGlxTvConnectionMonitor::UpdateConnectionStatusL current index value is %d",index);
+		GLX_LOG_INFO("CGlxTvConnectionMonitor::UpdateConnectionStatusL Video Accessory Supported");
+		TAccPolNameRecord nameRecord;
+		nameRecord.SetNameL(KAccVideoOut);
+
+		if (genId.DeviceTypeCaps(KDTAVDevice) && genId.PhysicalConnectionCaps(
+				KPCHDMI))
+			{
+			TAccValueTypeTInt value;
+			TInt err = iTvAccCon.GetValueL(genId, nameRecord, value);
+			if (err == KErrNone)
+				{
+				if (value.iValue == EAccVideoOutEHDMI)
+					{
+					GLX_LOG_INFO("CGlxTvConnectionMonitor::UpdateConnectionStatusL HDMI is connected");
+					iHDMIConnectionState = ETrue;
+					}
+				}
+			}
+		else if (genId.DeviceTypeCaps(KDTAVDevice)
+				&& genId.PhysicalConnectionCaps(KPCWired))
+			{
+			TAccValueTypeTInt value;
+			TInt err = iTvAccCon.GetValueL(genId, nameRecord, value);
+			if (err == KErrNone)
+				{
+				if (value.iValue == EAccVideoOutCVideo)
+					{
+					GLX_LOG_INFO("CGlxTvConnectionMonitor::UpdateConnectionStatusL Tv is connected");
+					iTvOutConnectionState = ETrue;
+					}
+				}
+			}
+		else if (genId.DeviceTypeCaps(KDTHeadset)
+				&& genId.PhysicalConnectionCaps(KPCWired))
+			{
+			GLX_LOG_INFO("CGlxTvConnectionMonitor::UpdateConnectionStatusL HeadSet connect");
+			iHeadSetConnectionState = ETrue;
+			}
+		}
+	CleanupStack::PopAndDestroy(nameArray);
+
+	GLX_LOG_INFO2("CGlxTvConnectionMonitor::UpdateConnectionStatusL CurrentTvState = %d , CurrentHDMIState = %d",
+			iTvOutConnectionState,iHDMIConnectionState);
+	}