os/mm/devsoundextensions/ciextnfactoryplugins/ciextnclientplugin/src/ciextnclientplugin.cpp
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/mm/devsoundextensions/ciextnfactoryplugins/ciextnclientplugin/src/ciextnclientplugin.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,205 @@
1.4 +/*
1.5 +* Copyright (c) 2002-2008 Nokia Corporation and/or its subsidiary(-ies).
1.6 +* All rights reserved.
1.7 +* This component and the accompanying materials are made available
1.8 +* under the terms of "Eclipse Public License v1.0"
1.9 +* which accompanies this distribution, and is available
1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.11 +*
1.12 +* Initial Contributors:
1.13 +* Nokia Corporation - initial contribution.
1.14 +*
1.15 +* Contributors:
1.16 +*
1.17 +* Description: Class definition of plugin implementing devsound client
1.18 +* custom interface extension.
1.19 +*
1.20 +*/
1.21 +
1.22 +
1.23 +
1.24 +// Include files
1.25 +#include "ciextnclientplugin.h"
1.26 +#include "citraces.h"
1.27 +#include <ecom.h>
1.28 +#include <cifactoryintfc.h>
1.29 +#include <cifactoryintfc.hrh>
1.30 +#include <mmf/common/mmfcontrollerpluginresolver.h>
1.31 +
1.32 +#define RET_ERR_IF_ERR(s) if(s!=KErrNone) return s
1.33 +
1.34 +// ---------------------------------------------------------------------------
1.35 +// Constructs and returns an application object.
1.36 +// ---------------------------------------------------------------------------
1.37 +//
1.38 +MDevSoundCIClientExtension* CCIExtnClientPlugin::NewL()
1.39 + {
1.40 + DEB_TRACE0(_L("*CI* CCIExtnClientPlugin::NewL"));
1.41 + CCIExtnClientPlugin* self = new (ELeave)CCIExtnClientPlugin;
1.42 + CleanupStack::PushL( self );
1.43 + self->ConstructL();
1.44 + CleanupStack::Pop( self );
1.45 + MDevSoundCIClientExtension* ptr = static_cast<MDevSoundCIClientExtension*>(self);
1.46 + return ptr;
1.47 + }
1.48 +
1.49 +// ---------------------------------------------------------------------------
1.50 +// Destructor
1.51 +// ---------------------------------------------------------------------------
1.52 +//
1.53 +CCIExtnClientPlugin::~CCIExtnClientPlugin()
1.54 + {
1.55 + iMCIFactoryIntfcList.Close();
1.56 + DEB_TRACE0(_L("*CI* CCIExtnClientPlugin::~CCIExtnClientPlugin"));
1.57 + }
1.58 +
1.59 +// ---------------------------------------------------------------------------
1.60 +// Called by framework when plugin is constructed
1.61 +// ---------------------------------------------------------------------------
1.62 +//
1.63 +TInt CCIExtnClientPlugin::Setup( MCustomCommand& aCustomCommand )
1.64 + {
1.65 + DEB_TRACE0(_L("*CI* CCIExtnClientPlugin::Setup"));
1.66 + TInt status(KErrNone);
1.67 + iMCustomCommand = &aCustomCommand;
1.68 + TRAP_IGNORE(InitializeFactoryPluginsL());
1.69 + return status;
1.70 + }
1.71 +
1.72 +// ---------------------------------------------------------------------------
1.73 +// Called by framework forwarding request to create a custom interface
1.74 +// ---------------------------------------------------------------------------
1.75 +//
1.76 +TInt CCIExtnClientPlugin::CustomInterfaceExtension( TUid aUid, TAny*& aInterface )
1.77 + {
1.78 + DEB_TRACE1(_L("*CI* CCIExtnClientPlugin::CustomInterfaceExtension 0x%x"), aUid.iUid);
1.79 +
1.80 + TInt status(KErrNotFound);
1.81 + aInterface = NULL;
1.82 +
1.83 + // Forward request to each factory plugin in the list,
1.84 + for ( TInt index = 0; index < iMCIFactoryIntfcList.Count(); index++ )
1.85 + {
1.86 + status = iMCIFactoryIntfcList[index]->CreateInterface( aUid, aInterface );
1.87 + // The factory tried creating custom interface successfully or otherwise.
1.88 + // stop forwarding the request to other factory plugins in the list.
1.89 + // If the factory does not support a custom interface with aUid, it will
1.90 + // return KErrNotFound
1.91 + if ( status != KErrNotFound )
1.92 + {
1.93 + break;
1.94 + }
1.95 + }
1.96 + return status;
1.97 + }
1.98 +
1.99 +// ---------------------------------------------------------------------------
1.100 +// Called by framework when plugin is to be deleted
1.101 +// ---------------------------------------------------------------------------
1.102 +//
1.103 +void CCIExtnClientPlugin::Release()
1.104 + {
1.105 + DEB_TRACE0(_L("*CI* CCIExtnClientPlugin::Release"));
1.106 +
1.107 + for ( TInt index = 0; index < iMCIFactoryIntfcList.Count(); index++ )
1.108 + {
1.109 + iMCIFactoryIntfcList[index]->Close();
1.110 + }
1.111 +
1.112 + iMCIFactoryIntfcList.Reset();
1.113 + iMCIFactoryIntfcList.Close();
1.114 +
1.115 + REComSession::DestroyedImplementation(iDestructorKey);
1.116 +
1.117 + delete this;
1.118 + }
1.119 +
1.120 +// ---------------------------------------------------------------------------
1.121 +// Called by framework after plugin is created
1.122 +// ---------------------------------------------------------------------------
1.123 +//
1.124 +void CCIExtnClientPlugin::PassDestructorKey( TUid aDestructorKey )
1.125 + {
1.126 + iDestructorKey = aDestructorKey;
1.127 + }
1.128 +
1.129 +// ---------------------------------------------------------------------------
1.130 +// Constructor
1.131 +// ---------------------------------------------------------------------------
1.132 +//
1.133 +CCIExtnClientPlugin::CCIExtnClientPlugin()
1.134 + {
1.135 + // No impl
1.136 + }
1.137 +
1.138 +// ---------------------------------------------------------------------------
1.139 +// Second phase constructor.
1.140 +// ---------------------------------------------------------------------------
1.141 +//
1.142 +void CCIExtnClientPlugin::ConstructL()
1.143 + {
1.144 + // No impl
1.145 + }
1.146 +
1.147 +// ---------------------------------------------------------------------------
1.148 +// Initializes factory plugins list.
1.149 +// ---------------------------------------------------------------------------
1.150 +//
1.151 +void CCIExtnClientPlugin::InitializeFactoryPluginsL()
1.152 + {
1.153 + // 1. Query the implementation ids of plugins implementing
1.154 + // KUidCIFactoryIntfcInterface
1.155 + // 2. Instantiate it and add it to the list of factories
1.156 +
1.157 + DEB_TRACE0(_L("*CI* CCIExtnClientPlugin::InitializeFactoryPluginsL"));
1.158 +
1.159 + iMCIFactoryIntfcList.Reset();
1.160 +
1.161 + RImplInfoPtrArray factoryEComUids;
1.162 + CleanupResetAndDestroyPushL(factoryEComUids);
1.163 +
1.164 + // List all the factory plugins
1.165 + TUid factoryPluginInterfaceUid = {KUidCIFactoryIntfcInterface};
1.166 + TEComResolverParams resParams;
1.167 + REComSession::ListImplementationsL( factoryPluginInterfaceUid, resParams,
1.168 + KRomOnlyResolverUid, factoryEComUids );
1.169 +
1.170 + // Instantiate and add it to the list of factories
1.171 + TUid destructorKey;
1.172 + MCIFactoryIntfc* factoryPlugin(NULL);
1.173 + TInt status(KErrNone);
1.174 + for ( TInt index = 0; index < factoryEComUids.Count(); index++)
1.175 + {
1.176 + //<415-4087> TN: created with ImplementationUid - KRomOnlyResolverUid not used
1.177 + TRAP( status ,
1.178 + factoryPlugin = static_cast<MCIFactoryIntfc*>
1.179 + (REComSession::CreateImplementationL(
1.180 + factoryEComUids[index]->ImplementationUid(),
1.181 + destructorKey ) ) );
1.182 + // If there was problem instantiating factory plugin, continue trying
1.183 + // next one.
1.184 + if ( status != KErrNone)
1.185 + {
1.186 + DEB_TRACE1(_L("*CI* CCIExtnClientPlugin::InitializeFactoryPluginsL create failed status=%d"), status);
1.187 + continue;
1.188 + }
1.189 +
1.190 + // Initialize the factory plugin
1.191 + if ( factoryPlugin->Initialize( *iMCustomCommand, destructorKey ) == KErrNone )
1.192 + {
1.193 + status = iMCIFactoryIntfcList.Append(factoryPlugin);
1.194 + if ( status != KErrNone )
1.195 + {// There was problem adding plugin to list, there was a system
1.196 + // wide error. Stop trying and return error code.
1.197 + factoryPlugin->Close();
1.198 + User::Leave( status );
1.199 + }
1.200 + }
1.201 + else
1.202 + {// There was problem initializing the factory plugin instance, close
1.203 + // it and continue instantiating the rest
1.204 + factoryPlugin->Close();
1.205 + }
1.206 + }
1.207 + CleanupStack::PopAndDestroy(&factoryEComUids);
1.208 + }