videofeeds/viewmessageutility/src/vcxviewmessageutility.cpp
changeset 0 96612d01cf9f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videofeeds/viewmessageutility/src/vcxviewmessageutility.cpp	Mon Jan 18 20:21:12 2010 +0200
@@ -0,0 +1,104 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:    Message sending component for MPX views.*
+*/
+
+
+
+
+#include "IptvDebug.h"
+
+#include "vcxviewmessageutility.h"
+#include "vcxviewmessageutility.hrh"
+
+// Each CCoeStatic object must have a unique TUid, let's use dll uid
+const TUid KVcxViewMessageUtilitySingletonUid = { KVcxViewMessageUtilityDllUid };
+
+// Negative priority destroys this singleton after AppUi is destroyed.
+// This way all views can remove observers before this object is destroyed.
+const TInt KVcxSingletonDestructionPriority( -1 );
+
+// ---------------------------------------------------------------------------
+// Static function that initializes the singleton object
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CVcxViewMessageUtility* CVcxViewMessageUtility::InstanceL()
+    {
+    IPTVLOGSTRING_LOW_LEVEL("CVcxViewMessageUtility::InstanceL"); 
+    // Ownership of the object remains with CCoeEnv
+    CVcxViewMessageUtility* instance = static_cast<CVcxViewMessageUtility*>( 
+        CCoeEnv::Static( KVcxViewMessageUtilitySingletonUid ) );
+    
+    if ( !instance )
+        {
+        IPTVLOGSTRING_LOW_LEVEL("CVcxViewMessageUtility::InstanceL - Creating object"); 
+        instance = new( ELeave ) CVcxViewMessageUtility();
+        }
+    return instance;
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CVcxViewMessageUtility::~CVcxViewMessageUtility()
+    {
+    IPTVLOGSTRING_LOW_LEVEL("CVcxViewMessageUtility destructor"); 
+    iObservers.Close();
+    }
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CVcxViewMessageUtility::CVcxViewMessageUtility() :
+        CCoeStatic( KVcxViewMessageUtilitySingletonUid, 
+                    KVcxSingletonDestructionPriority )
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// Adds observer
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CVcxViewMessageUtility::AddObserverL( MVcxViewMessageObserver& aObserver )
+    {
+    IPTVLOGSTRING2_LOW_LEVEL("CVcxViewMessageUtility::AddObserverL - Adding %X", &aObserver); 
+    TInt errorCode = KErrNoMemory;
+    MtvObserverUtils::AddObserverL(iObservers, aObserver, errorCode);
+    }
+
+// -----------------------------------------------------------------------------
+// Removes observer
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CVcxViewMessageUtility::RemoveObserver( MVcxViewMessageObserver& aObserver )
+    {
+    MtvObserverUtils::RemoveObserver(iObservers, aObserver );       
+    }
+
+// -----------------------------------------------------------------------------
+// Forwards messages to views
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CVcxViewMessageUtility::SendCustomViewMessageL( 
+        const TUid aMessageUid, const TDesC8 &aCustomMessage )
+    {
+    IPTVLOGSTRING2_LOW_LEVEL("CVcxViewMessageUtility::SendCustomViewMessageL Uid=%d", aMessageUid.iUid); 
+    // Send the same message to all observers.
+    TInt err( KErrNone );
+    RUN_NOTIFY_LOOP_L( HandleCustomViewMessageL( aMessageUid, aCustomMessage ), iObservers, err );
+    User::LeaveIfError( err );
+    }
+