dnsresolverappui.cpp

《基于Symbian OS的手机开发与应用实践》这本书的配套源码。

/*
* ============================================================================
*  Name     : CDnsResolverAppUi from DnsResolverAppui.cpp
*  Part of  : DnsResolver
*  Created  : 07.03.2006 by ToBeReplacedByAuthor
*  Implementation notes:
*     Initial content was generated by Series 60 Application Wizard.
*  Version  :
*  Copyright: ToBeReplacedByCopyright
* ============================================================================
*/

// INCLUDE FILES
#include <aknquerydialog.h>
#include <avkon.hrh>
#include <DnsResolver.rsg>

#include "DnsResolverAppui.h"
#include "DnsResolverContainer.h" 
#include "DnsResolver.hrh"

// ================= MEMBER FUNCTIONS =======================
//
// ----------------------------------------------------------
// CDnsResolverAppUi::ConstructL()
// 
// ----------------------------------------------------------
//
void CDnsResolverAppUi::ConstructL()
    {
    BaseConstructL();

    iAppContainer = new (ELeave) CDnsResolverContainer;
    iAppContainer->SetMopParent( this );
    iAppContainer->ConstructL( ClientRect() );
    AddToStackL( iAppContainer );

    iEngine = CDnsResolverEngine::NewL(*this);
    }

// ----------------------------------------------------
// CDnsResolverAppUi::~CDnsResolverAppUi()
// Destructor
// Frees reserved resources
// ----------------------------------------------------
//
CDnsResolverAppUi::~CDnsResolverAppUi()
    {
    if (iAppContainer)
        {
        RemoveFromStack( iAppContainer );
        delete iAppContainer;
        }

    delete iEngine;
    }

// Functions from CDnsResolverEngine::MObserver
void CDnsResolverAppUi::OnResolvedL(const TDesC& aResult, TInt aError)
    {
    if(aError==KErrNone)
        {
        iAppContainer->AppendL(aResult);
        }
    else
        {
        TBuf<32> buf;
        HBufC* prompt = iCoeEnv->AllocReadResourceLC(R_QTN_PROMPT_ERROR);
        buf.Copy(*prompt);
        CleanupStack::PopAndDestroy();        
        buf.Append(' ');
        buf.AppendNum(aError);
        iAppContainer->AppendL(buf);
        }
    }

// ------------------------------------------------------------------------------
// CDnsResolverAppUi::DynInitMenuPaneL(TInt aResourceId,CEikMenuPane* aMenuPane)
//  This function is called by the EIKON framework just before it displays
//  a menu pane. Its default implementation is empty, and by overriding it,
//  the application can set the state of menu items dynamically according
//  to the state of application data.
// ------------------------------------------------------------------------------
//
void CDnsResolverAppUi::DynInitMenuPaneL(
    TInt /*aResourceId*/,CEikMenuPane* /*aMenuPane*/)
    {
    }

// ----------------------------------------------------
// CDnsResolverAppUi::HandleKeyEventL(
//     const TKeyEvent& aKeyEvent,TEventCode /*aType*/)
// takes care of key event handling
// ----------------------------------------------------
//
TKeyResponse CDnsResolverAppUi::HandleKeyEventL(
    const TKeyEvent& /*aKeyEvent*/,TEventCode /*aType*/)
    {
    return EKeyWasNotConsumed;
    }

// ----------------------------------------------------
// CDnsResolverAppUi::HandleCommandL(TInt aCommand)
// takes care of command handling
// ----------------------------------------------------
//
void CDnsResolverAppUi::HandleCommandL(TInt aCommand)
    {
    switch ( aCommand )
        {
        case EAknSoftkeyBack:
        case EEikCmdExit:
            {
            Exit();
            break;
            }
        case EDnsResolverCmdGetHostName:
            {
            iAppContainer->ClearL();
            HBufC* prompt = iCoeEnv->AllocReadResourceLC(R_QTN_PROMPT_HOSTNAME);
            iAppContainer->AppendL(*prompt);
            CleanupStack::PopAndDestroy();
            iEngine->GetHostName();
            break;
            }
        case EDnsResolverCmdGetByName:
            {
            THostName dn;
            CAknTextQueryDialog* dlg = CAknTextQueryDialog::NewL(dn);
            dlg->PrepareLC(R_AVKON_DIALOG_QUERY_VALUE_TEXT);
            dlg->SetMaxLength(dn.MaxLength());
            HBufC* prompt = iCoeEnv->AllocReadResourceLC(R_QTN_PROMPT_DOMAINNAME);
            dlg->SetPromptL(*prompt);
            CleanupStack::PopAndDestroy();
            if(dlg->RunLD())
                {
                iAppContainer->ClearL();
                iAppContainer->AppendL(dn);
                HBufC* prompt = iCoeEnv->AllocReadResourceLC(R_QTN_PROMPT_IPADDRESS);
                iAppContainer->AppendL(*prompt);
                CleanupStack::PopAndDestroy();
                iEngine->GetByName(dn);
                }
            break;
            }
        case EDnsResolverCmdGetByAddress:
            {
            TBuf<15> ip;
            CAknTextQueryDialog* dlg = CAknTextQueryDialog::NewL(ip);
            dlg->PrepareLC(R_AVKON_DIALOG_QUERY_VALUE_TEXT);
            dlg->SetMaxLength(15);
            HBufC* prompt = iCoeEnv->AllocReadResourceLC(R_QTN_PROMPT_IPADDRESS);
            dlg->SetPromptL(*prompt);
            CleanupStack::PopAndDestroy();
            if(dlg->RunLD())
                {
                iAppContainer->ClearL();
                HBufC* prompt = iCoeEnv->AllocReadResourceLC(R_QTN_PROMPT_DOMAINNAME);
                iAppContainer->AppendL(*prompt);
                CleanupStack::PopAndDestroy();
                iEngine->GetByAddressL(ip);
                }
            break;
            }
        default:
            break;      
        }
    }

// End of File