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/*
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============================================================================
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Name : NPRAppEngine.cpp
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Author : Symsourcce
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Copyright (c) 2009 Symbian Foundation Ltd
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This component and the accompanying materials are made available
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under the terms of the License "Eclipse Public License v1.0"
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which accompanies this distribution, and is available
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at the URL "http://www.eclipse.org/legal/epl-v10.html".
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Initial Contributors:
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- Symsource
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Contributors:
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- Symsource
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Description :
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============================================================================
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*/
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#include <DocumentHandler.h>
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#include <aknwaitdialog.h>
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#include <NPR_0xEEB0E481.rsg>
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#include "NPRAppEngine.h"
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#include "NPRAppUi.h"
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#include "NPRStationXmlParser.h"
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#include "NPRStation.h"
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#include "NPRStory.h"
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_LIT(KNPRQuery, "http://api.npr.org/query?id=1001&apiKey=MDAzNTk1Nzk0MDEyNDQ2NjI1NzgyNGExNg001");
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_LIT(KNPRApiKey, "MDAzNTk1Nzk0MDEyNDQ2NjI1NzgyNGExNg001");
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_LIT(KNPRStationQuery,"http://api.npr.org/stations?%S&apiKey=%S");
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_LIT(KSearching, "Searching...");
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_LIT(KStationStreamFile, "c:\\data\\npr_station_stream.rm");
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_LIT(KNewsStreamFile, "c:\\data\\npr_news_stream.rm");
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_LIT8(KDataTypeRAM,"audio/x-pn-realaudio-plugin");
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_LIT8(KXmlMimeType, "text/xml");
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CNPRAppEngine* CNPRAppEngine::NewL(CNPRAppUi& aNPRAppUi)
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{
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CNPRAppEngine* self = new (ELeave) CNPRAppEngine(aNPRAppUi);
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CleanupStack::PushL(self);
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self->ConstructL();
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CleanupStack::Pop(self);
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return self;
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}
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CNPRAppEngine::CNPRAppEngine(CNPRAppUi& aNPRAppUi)
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:iNPRAppUi(aNPRAppUi)
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{
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}
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CNPRAppEngine::~CNPRAppEngine()
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{
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delete iDocHandler;
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delete iHttp;
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iStationArray.ResetAndDestroy();
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iStationArray.Close();
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iStoryArray.ResetAndDestroy();
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iStoryArray.Close();
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if(iWaitDialog)
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{
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delete iWaitDialog;
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iWaitDialog = NULL;
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}
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}
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void CNPRAppEngine::ConstructL()
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{
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this->iHttp = CHttpClient::NewL(*this);
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// Create the document handler
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iDocHandler = CDocumentHandler::NewL(CEikonEnv::Static()->Process());
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}
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void CNPRAppEngine::SendNPRCommandL(const TNPRCommands aCommand, const TDesC& aField)
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{
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switch(aCommand)
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{
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case ENewsCmd:
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{
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SearchNewsL(aField);
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ShowWaitingDialogL(KSearching());
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break;
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}
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case EStationsCmd:
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{
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SearchStationsL(aField);
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ShowWaitingDialogL(KSearching());
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break;
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}
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case EPlayStationStream:
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{
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TFileName filename(KStationStreamFile);
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LaunchFileL(filename);
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break;
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}
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case EPlayNewsStream:
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{
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TFileName filename(KNewsStreamFile);
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LaunchFileL(filename);
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break;
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}
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default:
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return;
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}
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}
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const RPointerArray<CNPRStation>* CNPRAppEngine::Stations()
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{
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return &iStationArray;
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}
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const RPointerArray<CNPRStory>* CNPRAppEngine::Stories()
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{
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return &iStoryArray;
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}
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void CNPRAppEngine::SearchStationsL(const TDesC& aField)
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{
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HBufC *uri = HBufC::NewLC(KNPRStationQuery().Length()
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+ aField.Length()
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+ KNPRApiKey().Length()
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);
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TPtr uriPtr = uri->Des();
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uriPtr.Format(KNPRStationQuery,&aField, &KNPRApiKey());
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iHttp->SendRequestL(uriPtr);
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CleanupStack::PopAndDestroy(uri);
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iNPRCommand = EStationsCmd;
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}
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void CNPRAppEngine::SearchNewsL(const TDesC& /*aField*/)
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{
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iHttp->SendRequestL(KNPRQuery());
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iNPRCommand = ENewsCmd;
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}
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void CNPRAppEngine::ResponseStatusL(TInt /*aStatusCode*/, const TDesC& /*aStatusText*/)
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{
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DismissWaitingDialogL();
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}
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void CNPRAppEngine::ResponseReceivedL(const TDesC8& aResponseBuffer)
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{
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switch(iNPRCommand)
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{
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case ENewsCmd:
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{
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iStoryArray.ResetAndDestroy();
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CNPRStoryXmlParser* newsParser = CNPRStoryXmlParser::NewLC(&iStoryArray);
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CParser* parser = CParser::NewLC(KXmlMimeType, *newsParser);
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parser->ParseL(aResponseBuffer);
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CleanupStack::PopAndDestroy(parser);
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CleanupStack::PopAndDestroy(newsParser);
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iNPRAppUi.ActivateLocalViewL(TUid::Uid(ENPRStoryListBoxViewId));
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break;
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}
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case EStationsCmd:
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{
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DismissWaitingDialogL();
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iStationArray.ResetAndDestroy();
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CNPRStationXmlParser* stationParser = CNPRStationXmlParser::NewLC(&iStationArray);
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CParser* parser = CParser::NewLC(KXmlMimeType, *stationParser);
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parser->ParseL(aResponseBuffer);
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CleanupStack::PopAndDestroy(parser);
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CleanupStack::PopAndDestroy(stationParser);
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iNPRAppUi.ActivateLocalViewL(TUid::Uid(ENPRStationListBoxViewId));
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break;
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}
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default:
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DismissWaitingDialogL();
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break;
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}
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}
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void CNPRAppEngine::LaunchFileL(const TDesC& aFilename)
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{
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TDataType dataType = TDataType(KDataTypeRAM());
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// Open a file in a standalone handler application
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TRAPD(err,iDocHandler->OpenFileL(aFilename, dataType));
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TUid handlerUid;
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err = iDocHandler->HandlerAppUid(handlerUid);
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if (!err)
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{
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RefreshDocumentFileL(handlerUid, aFilename);
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}
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}
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/**
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* Refreshes the file opened in a standalone handler. Does nothing if the file
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* has not been already opened.
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*/
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void CNPRAppEngine::RefreshDocumentFileL(const TUid& aUid, const TDesC& aFileName)
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{
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TApaTaskList taskList(CEikonEnv::Static()->WsSession());
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TApaTask task = taskList.FindApp(aUid);
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// If the standalone handler is already running, then update the file
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if (task.Exists())
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{
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User::LeaveIfError(task.SwitchOpenFile(aFileName));
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}
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}
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void CNPRAppEngine::ShowWaitingDialogL(const TDesC& aText)
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{
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DismissWaitingDialogL();
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iWaitDialog = new(ELeave)CAknWaitDialog((REINTERPRET_CAST(CEikDialog**,&iWaitDialog)), EFalse );
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iWaitDialog->SetTextL(aText);
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iWaitDialog->ExecuteLD(R_SINGULAR_WAIT_NOTE);
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}
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void CNPRAppEngine::DismissWaitingDialogL()
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{
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if(iWaitDialog)
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{
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iWaitDialog->ProcessFinishedL();
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iWaitDialog=NULL;
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}
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}
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