--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpxplugins/viewplugins/views/commoncontainer/src/mpxcommoncontainermediahelper.cpp	Thu Dec 17 08:45:05 2009 +0200
@@ -0,0 +1,249 @@
+/*
+* 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:  Implementation of MPX common container Media helper.
+*
+*/
+
+
+#include <mpxcollectionpath.h>
+#include <mpxcollectionutility.h>
+#include <mpxmediageneraldefs.h>
+#include <mpxmediacontainerdefs.h>
+#include <mpxmediamusicdefs.h>
+#include <mpxcommandgeneraldefs.h>
+#include <mpxlog.h>
+#include "mpxcommoncontainer.h"
+#include "mpxcommoncontainermediahelper.h"
+
+// CONSTANTS
+
+// ----------------------------------------------------------------------------
+// Two-phased constructor
+// ----------------------------------------------------------------------------
+//
+CMPXCommonContainerMediaHelper* CMPXCommonContainerMediaHelper::NewL( 
+    MMPXCommonContainer* aCommonContainer )
+    {    
+    CMPXCommonContainerMediaHelper* self = 
+        new (ELeave) CMPXCommonContainerMediaHelper( aCommonContainer );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ----------------------------------------------------------------------------
+// Constructor. 
+// ----------------------------------------------------------------------------
+//
+CMPXCommonContainerMediaHelper::CMPXCommonContainerMediaHelper(
+    MMPXCommonContainer* aCommonContainer )
+    : iCommonContainer( aCommonContainer )
+    {
+    }
+
+// ----------------------------------------------------------------------------
+// 2nd phase constructor. 
+// ----------------------------------------------------------------------------
+//
+void CMPXCommonContainerMediaHelper::ConstructL()
+    {
+    iCollectionUtility = MMPXCollectionUtility::NewL( this );
+
+#ifdef __USE_MESSAGE_SUBSCRIPTION
+    // This class does not care about collection messages
+    iCollectionUtility->Collection().ClearSubscriptionsL();
+#endif
+    }
+
+// ----------------------------------------------------------------------------
+// Destructor
+// ----------------------------------------------------------------------------
+//
+CMPXCommonContainerMediaHelper::~CMPXCommonContainerMediaHelper()
+    {
+    if ( iCollectionUtility )
+        {
+        iCollectionUtility->Close();
+        }
+    }
+    
+// ----------------------------------------------------------------------------
+// Retrieves the media given the current path, and upon return,
+// either calls back the observer, or broadcasts the message to 
+// the given client list
+// ----------------------------------------------------------------------------
+void CMPXCommonContainerMediaHelper::MediaL( 
+    const TMPXItemId& aItemId, 
+    RArray<TMPXAttribute> aAttrs,
+    CMPXMedia* aAttrSpecs )
+    {
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::MediaL(): Entering");
+
+    CMPXCollectionPath* cPath = iCollectionUtility->Collection().PathL();  
+    CleanupStack::PushL( cPath );
+    cPath->Set( aItemId );
+    iCollectionUtility->Collection().MediaL( *cPath, aAttrs.Array(), aAttrSpecs );
+    CleanupStack::PopAndDestroy( cPath );
+
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::MediaL(): Exiting");
+    }
+
+// ----------------------------------------------------------------------------
+// Updates the specified media with the results from the search
+// criteria
+// ----------------------------------------------------------------------------
+void CMPXCommonContainerMediaHelper::UpdateMediaL( 
+    CMPXMedia* aMedia, 
+    RArray<TMPXAttribute> aSearchAttrs,
+    CMPXMedia* aSearchAttrSpecs )
+    {
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::UpdateMediaL(): Entering");
+
+    CMPXMedia* mediaQuery = CMPXMedia::NewL();
+    CleanupStack::PushL( mediaQuery );
+    mediaQuery->SetTObjectValueL(KMPXMediaGeneralType, EMPXGroup);        
+    mediaQuery->SetTObjectValueL<TMPXGeneralCategory>(
+        KMPXMediaGeneralCategory, EMPXSong);
+    TMPXItemId mediaId = *aMedia->Value<TMPXItemId>( KMPXMediaGeneralId );
+    mediaQuery->SetTObjectValueL(KMPXMediaGeneralId, mediaId );
+    mediaQuery->SetTObjectValueL(KMPXMediaGeneralContainerId, mediaId );
+    mediaQuery->SetCObjectValueL<CMPXAttributeSpecs>(
+        KMPXCommandMediaAttributeSpecs, aSearchAttrSpecs );
+
+    // Find the attributes associated with the media
+    CMPXMedia* queryResult = iCollectionUtility->Collection().FindAllL( 
+        *mediaQuery, aSearchAttrs.Array() );
+    CleanupStack::PopAndDestroy( mediaQuery );
+    
+    CleanupStack::PushL( queryResult );
+    
+    // update media with the query results
+    const CMPXMediaArray* medias =
+        queryResult->Value<CMPXMediaArray>(KMPXMediaArrayContents);
+    User::LeaveIfNull(const_cast<CMPXMediaArray*>(medias));
+    
+    aMedia->SetCObjectValueL(
+        KMPXMediaArrayContents, const_cast<CMPXMediaArray*>(medias));
+    aMedia->SetTObjectValueL(
+        KMPXMediaArrayCount, medias->Count());
+        
+    CleanupStack::PopAndDestroy( queryResult );
+
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::UpdateMediaL(): Exiting");
+    }
+
+// ----------------------------------------------------------------------------
+// Cancels all outstanding requests
+// ----------------------------------------------------------------------------
+void CMPXCommonContainerMediaHelper::CancelRequests()
+    {
+    MPX_FUNC_EX("CMPXCommonContainerMediaHelper::CancelRequests()");
+    if ( iCollectionUtility )
+        {
+        iCollectionUtility->Collection().CancelRequest();
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// From MMPXCollectionObserver
+// ----------------------------------------------------------------------------
+void CMPXCommonContainerMediaHelper::HandleCollectionMessage( 
+    CMPXMessage* /*aMsg*/,
+    TInt /*aErr*/)
+    {
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::HandleCollectionMessageL(CMPXMessage): Entering");
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::HandleCollectionMessageL(CMPXMessage): Exiting");
+    }
+
+// ----------------------------------------------------------------------------
+// From MMPXCollectionObserver
+// ----------------------------------------------------------------------------
+void CMPXCommonContainerMediaHelper::HandleOpenL( 
+    const CMPXMedia& /*aEntries*/,
+    TInt /*aIndex*/, 
+    TBool /*aComplete*/, 
+    TInt /*aError*/ )
+    {
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::HandleOpenL(): Entering");
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::HandleOpenL(): Exiting");
+    }
+    
+// ----------------------------------------------------------------------------
+// From MMPXCollectionObserver
+// ----------------------------------------------------------------------------
+void CMPXCommonContainerMediaHelper::HandleOpenL( 
+    const CMPXCollectionPlaylist& /*aPlaylist*/,
+    TInt /*aError*/ )
+    {
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::HandleOpenL(): Entering");
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::HandleOpenL(): Exiting");
+    }
+
+// ----------------------------------------------------------------------------
+// From MMPXCollectionObserver
+// ----------------------------------------------------------------------------
+void CMPXCommonContainerMediaHelper::HandleCommandComplete( 
+    CMPXCommand* /*aCommandResult*/, 
+    TInt /*aError*/ )
+    {
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::HandleCommandComplete(): Entering");
+    MPX_DEBUG1("CMPXCommonContainerMediaHelper::HandleCommandComplete(): Exiting");
+    }
+
+// ----------------------------------------------------------------------------
+// From MMPXCollectionMediaObserver
+// ----------------------------------------------------------------------------
+//
+void CMPXCommonContainerMediaHelper::HandleCollectionMediaL(
+    const CMPXMedia& aMedia, 
+    TInt aError )    
+    {
+    MPX_FUNC_EX("CMPXCommonContainerMediaHelper::HandleCollectionMediaL");
+    MPX_DEBUG2("CMPXCommonContainerMediaHelper::HandleCollectionMediaL(): error %d", aError);
+
+    if( aError == KErrNone )
+        {
+        // Find the media in the common container
+        if( aMedia.IsSupported( KMPXMediaGeneralId ) )
+            {
+            const TMPXItemId mediaId( 
+                aMedia.ValueTObjectL<TMPXItemId>( KMPXMediaGeneralId ) );
+
+            const CMPXMediaArray& mediaArray = 
+                iCommonContainer->ListBoxArray()->MediaArray();
+            const TInt count( mediaArray.Count() );
+            
+            for( TInt index = 0; index < count; index++ )
+                {
+                CMPXMedia* media( mediaArray.AtL( index ) );
+                if( media->IsSupported( KMPXMediaGeneralId ) )
+                    {
+                    TMPXItemId containerId(
+                        media->ValueTObjectL<TMPXItemId>( KMPXMediaGeneralId ) );
+                    if ( mediaId == containerId )
+                        {
+                        // Update the list box item
+                        *media = aMedia;
+                        // Refresh the list box item
+                        iCommonContainer->DrawLbxItem( index );
+                        break;
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+//End of file