chxavwaitnote.cpp

来自「symbian 下的helix player源代码」· C++ 代码 · 共 142 行

/************************************************************************
 * chxavwaitnote.h
 * ---------------
 *
 * Synopsis:
 * Description: 
 *
 * (c) 1995-2003 RealNetworks, Inc. Patents pending. All rights reserved.
 *
 ************************************************************************/

// Symbian includes...
#include <aknwaitdialog.h>

// Includes from this project...
#include "chxavmisc.h"
#include "chxavutil.h"
#include "chxavwaitnote.h"
#include "chxavthread.h"
#include "hxsym_debug.h"

///////////////////////////////////
// ctor
CHXAvWaitNote::CHXAvWaitNote()
: m_wpWaitNote(0)
, m_idSoftkey(R_AVKON_SOFTKEYS_EMPTY)
, m_bDismissPending(false)
{ 
}

///////////////////////////////////
// dtor
CHXAvWaitNote::~CHXAvWaitNote()
{
    HX_ASSERT(!m_wpWaitNote);
}

////////////////////////////////////////
//
void CHXAvWaitNote::ClearCancelCommand()
{
    m_spUserCancelCmd = 0;
    m_idSoftkey = R_AVKON_SOFTKEYS_EMPTY;
}

////////////////////////////////////////
// userCancelCmd - command to execute when cancel button is pressed
// idSoftkey     - resource (see avkon.rsg) for cba (softkey text)
//
void CHXAvWaitNote::SetCancelCommandL(const CHXAvCommand& userCancelCmd, TInt idSoftkey)
{
    m_spUserCancelCmd = userCancelCmd.CloneL();
    m_idSoftkey = idSoftkey;  
}

////////////////////////////////////////
// MProgressDialogCallback
//
// called when user cancels or we close it (because
// time consuming event has completed)
//
// note: we might get simulated cancel event (e.g., from dialog shutter)
//
void CHXAvWaitNote::DialogDismissedL(TInt bid)
{
    DPRINTF(SYMP_INFO, ("WaitNote::DialogDismissedL() button id = %ld; ptr = %p\n", bid, m_wpWaitNote));
   
    HX_ASSERT(m_bDismissPending);
    if( m_bDismissPending )
    {
        m_bDismissPending = false;

        if(m_spUserCancelCmd)
        {
            m_spUserCancelCmd->Execute();
        }
    }
    
}

////////////////////////////////////////////////
//
void CHXAvWaitNote::StartAndKickL()
{
    StartL(false);

    // process active objects so dialog has a chance to display itself (in case blocking processing follows)
    CHXAvThread::ProcessPendingRequests();
}
    
////////////////////////////////////////////////
//
// bDelayVisibility    - if true, wait 1.5 secs before displaying (in case wait turns
//                       out to be very short
//
void CHXAvWaitNote::StartL(bool bDelayVisibility)
{
    DPRINTF(SYMP_INFO, ("WaitNote::StartL()\n"));

    HX_ASSERT(!m_bDismissPending);
    HX_ASSERT(!m_wpWaitNote);
    
    m_wpWaitNote = new (ELeave) CAknWaitDialog( reinterpret_cast<CEikDialog**>(&m_wpWaitNote), !bDelayVisibility);
    
    // not modal; modal requires EEikDialogFlagWait
    m_wpWaitNote->PrepareLC(R_AVP_WAIT_NOTE);

    // save cleanupstack init until LD
    {
        AUTO_PUSH_POP(m_wpWaitNote);
        m_wpWaitNote->SetTextL(*m_spText);
        //m_wpWaitNote->SetCurrentLabelL(EGeneralQuery, *m_spText);
    
        m_wpWaitNote->SetCallback(this); 

        // set softkey (default is empty)
        m_wpWaitNote->ButtonGroupContainer().SetCommandSetL(m_idSoftkey);
    
        m_bDismissPending = true;
    }

    m_wpWaitNote->RunLD();
}

////////////////////////////////////////////////
//
void CHXAvWaitNote::EndL()
{
    DPRINTF(SYMP_INFO, ("WaitNote::EndL() pNote = %p\n", m_wpWaitNote));
    if(m_bDismissPending && m_wpWaitNote)
    {
        m_bDismissPending = false;
        m_wpWaitNote->SetCallback(0); // just in case; we don't need callback after this
        m_wpWaitNote->ProcessFinishedL(); 

        // sometimes m_wpWaitNote lingers; self-destructs a bit later! (e.g., if you start and then end it quickly)
        // HX_ASSERT(0 == m_wpWaitNote);
    }
}