--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widgetmodel/alfwidgetmodel/src/alfhostapiimpl.cpp	Thu Dec 17 08:56:02 2009 +0200
@@ -0,0 +1,138 @@
+/*
+* Copyright (c) 2007 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:  The private implementation of AlfHostAPI.
+*
+*/
+
+
+#include "alfhostapiimpl.h"
+#include <alf/alfwidgetcontrol.h>
+#include <alf/ialflayoutmanager.h>
+#include <alf/alfexceptions.h>
+
+namespace Alf
+    {
+    
+AlfHostAPIImpl::AlfHostAPIImpl(): mBaseLayout(NULL), mHostControl(NULL)
+    {
+    }
+    
+    
+AlfHostAPIImpl::~AlfHostAPIImpl()
+    {
+    }
+
+OSN_EXPORT IAlfInterfaceBase* AlfHostAPIImpl::makeInterface(
+    const IfId& aType )
+    {
+    UString param(aType.mImplementationId);
+    if ( param == IAlfHostAPI::type().mImplementationId )
+        {
+        return static_cast<IAlfHostAPI*>( this );
+        }
+    return 0;
+    }
+
+void AlfHostAPIImpl::setHostControl(CAlfWidgetControl& aControl)
+    {
+    mHostControl = &aControl;
+    }
+
+void AlfHostAPIImpl::setConnection(CAlfWidgetControl& aControl, AlfRole aRole)
+    {
+    if (mHostControl)
+        {
+        // Remove previous host connection from connected control
+        if(aControl.Host())
+            {
+            CAlfWidgetControl* parentControl = dynamic_cast<CAlfWidgetControl*>(aControl.Host());
+            if(parentControl)
+                {
+                parentControl->hostAPI().removeConnection(aControl);
+                }
+            }
+        
+        // Add connection from host control to connected control
+        TRAPD(err, mHostControl->AddConnectionL(&aControl,aRole));
+        if(err != KErrNone)
+            {
+            ALF_THROW(AlfException, err, "AlfHostAPIImpl::setConnection() - AddConnectionL() failed.");
+            }        
+        
+        // Update layout of host control if a child control was connected
+        if (aRole == EChild && mBaseLayout.get())
+            {
+            mBaseLayout->updateChildLayout(&aControl);
+            }
+        }
+    }
+
+CAlfWidgetControl* AlfHostAPIImpl::getConnection(int aIndex) const
+    {
+    if (mHostControl)
+    	{
+    	//AlfControl doesn't perform bound checks.
+    	if (aIndex >=0 && aIndex < mHostControl->ConnectionCount()) 
+    		{
+    		return (static_cast<CAlfWidgetControl*>(&(mHostControl->Connection(aIndex)))); 
+    		}
+    	}
+    return 0; //NULL is not defined in osncore
+    }
+    
+int AlfHostAPIImpl::getConnectionCount() const
+    {
+    int connectionCount = 0;
+    if (mHostControl)
+        {
+        connectionCount = mHostControl->ConnectionCount();
+        }
+    return connectionCount;
+    }
+    
+int AlfHostAPIImpl::getConnectionIndex(CAlfWidgetControl& aControl) const
+    {
+    return mHostControl->FindConnection(&aControl);
+    }
+
+void AlfHostAPIImpl::removeConnection(CAlfWidgetControl& aControl)
+    {
+    if (mHostControl)
+        {
+        mHostControl->RemoveConnection(&aControl);  
+        if (getBaseLayout())
+            {
+            getBaseLayout()->childRemoved(&aControl);
+            }
+        }
+    }
+
+void AlfHostAPIImpl::setBaseLayout(IAlfLayoutManager& aLayout)
+    {
+    if(mHostControl)
+    	{
+        mBaseLayout.reset(&aLayout);
+        mBaseLayout->createLayout(*mHostControl, 0, 0);
+        }
+    }
+
+IAlfLayoutManager* AlfHostAPIImpl::getBaseLayout() const
+    {
+    return mBaseLayout.get();
+    }
+
+    } //namespace alf
+
+
+