examples/SFExamples/symbian_os_communications_programming_book_v2/chapter8/receivingmessages/CSummaryScreenUI.cpp

// 
// Copyright (c) 2002-2009 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:
// 

#include "CSummaryScreenUI.h"
#include "CWeatherReportWatcher.h"
#include "SummaryScreenLog.h"

_LIT(KNewLine, "\n");

CSummaryScreenUI* CSummaryScreenUI::NewLC(CConsoleBase& aConsole)
        {
        CSummaryScreenUI* self = new (ELeave) CSummaryScreenUI(aConsole);
        CleanupStack::PushL(self);
        self->ConstructL();
        CActiveScheduler::Add(self);
        return self;
        }

void CSummaryScreenUI::ConstructL()
        {
        iFs.Connect();
        
        // Create the message summary engine
        // This object passes itself in to the CMessageSummaryEngine as an observer.
        // When the contents of the message summary engine changes then the Refresh()
        // function is called.
        iMessageSummaryEngine = CMessageSummaryEngine::NewL(*this);
        }

void CSummaryScreenUI::StartL()
        {
        LOG(">> CSummaryScreenUI::StartL()");

        iStatus = KRequestPending;
        
        iMessageSummaryEngine->StartL();
        
        SetActive();
        
        CActiveScheduler::Start();

        LOG("<< CSummaryScreenUI::StartL()");
        }


CSummaryScreenUI::~CSummaryScreenUI()
        {
        delete iMessageSummaryEngine;
        delete iWeatherReportWatcher;
        iFs.Close();
        }

CSummaryScreenUI::CSummaryScreenUI(CConsoleBase& aConsole) : CActive(EPriorityStandard), iConsole(aConsole)
        {
        }
        
void CSummaryScreenUI::WriteSummaries(const CMessageSummaryGenerator& aSummaryGenerator)
        {
        // List the message summaries
        const RArray<TMessageSummary>& messageSummaries = aSummaryGenerator.MessageSummaries();

        TInt index;
        TInt messageCount = messageSummaries.Count();
        
        // Display each message summary
        for (index = 0; index < messageCount; index++)
                {
                iConsole.Printf(messageSummaries[index].iFrom);
                iConsole.SetPos(KSubjectIndent);
                iConsole.Printf(messageSummaries[index].iSummaryText);
                iConsole.Printf(KNewLine);
                }       
        }

void CSummaryScreenUI::Refresh()
        {
        _LIT(KSmsMessageTitle, "SMS Messages:\n\n");
        _LIT(KEmailMessageTitle, "Email Messages:\n\n");
        _LIT(KWeatherReportTitle, "Weather Report:\n\n");
        
        _LIT(KNoWeatherReport, "None\n");
        _LIT(KSunnyWeatherReport, "Sun\n");
        _LIT(KCloudyWeatherReport, "Cloud\n");
        _LIT(KRainyWeatherReport, "Rain\n");

        iConsole.ClearScreen();
        
        // If this is the first time that refresh is called then create the weather report watcher
        if (iWeatherReportWatcher == NULL)
                iWeatherReportWatcher = CWeatherReportWatcher::NewL(*this, iFs);

        // List the SMS message summaries
        iConsole.Printf(KSmsMessageTitle);
        WriteSummaries(iMessageSummaryEngine->SmsSummary());
        
        // List the Email message summaries
        const CMessageSummaryGenerator* emailSummaries = iMessageSummaryEngine->EmailSummary();
        if (emailSummaries != NULL)
                {
                iConsole.Printf(KNewLine);
                iConsole.Printf(KEmailMessageTitle);
                WriteSummaries(*emailSummaries);        
                }
                
        iConsole.Printf(KNewLine);
        iConsole.Printf(KWeatherReportTitle);

        switch (iWeatherReport)
                {
                case ENone:
                        iConsole.Printf(KNoWeatherReport);
                        break;
                        
                case ESunny:
                        iConsole.Printf(KSunnyWeatherReport);
                        break;
                        
                case ECloudy:
                        iConsole.Printf(KCloudyWeatherReport);
                        break;
                        
                case ERainy:
                        iConsole.Printf(KRainyWeatherReport);
                        break;
                                                
                default:
                        break;
                }
        }

void CSummaryScreenUI::DoCancel()
        {
        }

void CSummaryScreenUI::RunL()
        {               
        // A more sophisticated UI would probably queue some other initialisation task here.
        }

// From MWeatherReportObserver
void CSummaryScreenUI::NewWeatherReport(MWeatherReportObserver::TWeatherReport aWeatherReport)
        {
        iWeatherReport = aWeatherReport;
        Refresh();
        }

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