ansphonecallwatcher.cpp

来自「series60 应用程序开发的源代码 series60 应用程序开发的源代码」· C++ 代码 · 共 119 行

/**
*
* @brief Definition of CAnsPhoneCallWatcher
*
* Copyright (c) EMCC Software Ltd 2003
* @version 1.0
*/

#include "AnsPhoneCallWatcher.h"

CAnsPhoneCallWatcher::CAnsPhoneCallWatcher(MAnsPhoneCallWatcherObserver& aObserver, RLine& aLine)
:CActive(EPriorityNormal),
 iObserver(aObserver),
 iLine(aLine),
 iState(EWaiting)
{
}

CAnsPhoneCallWatcher::~CAnsPhoneCallWatcher()
{
    Cancel();
}

CAnsPhoneCallWatcher* CAnsPhoneCallWatcher::NewL(MAnsPhoneCallWatcherObserver& aObserver, RLine& aLine)
{
    CAnsPhoneCallWatcher* self = new (ELeave) CAnsPhoneCallWatcher(aObserver, aLine);
    CleanupStack::PushL(self);
    self->ConstructL();
    CleanupStack::Pop(self);
    return self;
}

void CAnsPhoneCallWatcher::ConstructL()
{
    CActiveScheduler::Add(this);
    StartL();
}

///////////////////////////////////////////////////////////////////////////////////////////////////////
// CActive
//
///////////////////////////////////////////////////////////////////////////////////////////////////////

void CAnsPhoneCallWatcher::RunL()
{
    if(iStatus.Int() != KErrNone)
        return;

    switch(iState)
    {
        case EWaiting:
        {
            // answer the call
            iState = EAnswering;
            StartL();
            break;
        }
        case EAnswering:
        {
            iState = EWatching;
            StartL();
            iObserver.HandleCallInChangeL(RCall::EStatusConnected);
            break;
        }
        case EWatching:
        {
            User::LeaveIfError(iCall.GetStatus(iCallStatus));
            if (iCallStatus == RCall::EStatusHangingUp)
            {
                iObserver.HandleCallInChangeL(iCallStatus);
                iCall.Close();
                iState = EWaiting;
            }
            StartL();
            break;
        }
    }
}

void CAnsPhoneCallWatcher::DoCancel()
{
    Stop();
}

void CAnsPhoneCallWatcher::StartL()
{
    switch(iState)
    {
        case EWaiting:
            // sets iCallName when it receives an incoming call
            iLine.NotifyIncomingCall(iStatus, iCallName);
            break;
        case EAnswering:
            User::LeaveIfError(iCall.OpenExistingCall(iLine, iCallName));
            iCall.AnswerIncomingCall(iStatus);
            break;
        case EWatching:
            iCall.NotifyStatusChange(iStatus, iCallStatus);
            break;
    }
    SetActive();
}

void CAnsPhoneCallWatcher::Stop()
{
    switch(iState)
    {
        case EWaiting:
            iLine.NotifyIncomingCallCancel();
            break;
        case EAnswering:
            iCall.Close();
            break;
        case EWatching:
            iCall.NotifyStatusChangeCancel();
            iCall.Close();
            break;
    }
}