axmol/testjs/libs/cocos2dx/keypad_dispatcher/CCKeypadDispatcher.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/

#include "CCKeypadDispatcher.h"
#include "support/data_support/ccCArray.h"

namespace   cocos2d {

static CCKeypadDispatcher* s_KeypadDispatcher = NULL;
//------------------------------------------------------------------
//
// CCKeypadDispatcher
//
//------------------------------------------------------------------
CCKeypadDispatcher::CCKeypadDispatcher()
: m_bLocked(false)
, m_bToAdd(false)
, m_bToRemove(false)
{
    m_pDelegates = new KeypadDelegateArray;

    m_pHandlersToAdd    = ccCArrayNew(8);
    m_pHandlersToRemove = ccCArrayNew(8);
}

CCKeypadDispatcher::~CCKeypadDispatcher()
{
	CC_SAFE_RELEASE(m_pDelegates);
	if (m_pHandlersToAdd)
	{
		ccCArrayFree(m_pHandlersToAdd);
	}
    
	if (m_pHandlersToRemove)
	{
		ccCArrayFree(m_pHandlersToRemove);
	}    
}

CCKeypadDispatcher* CCKeypadDispatcher::sharedDispatcher()
{
    if (! s_KeypadDispatcher)
    {
        s_KeypadDispatcher = new CCKeypadDispatcher;
    }

    return s_KeypadDispatcher;
}

void CCKeypadDispatcher::purgeSharedDispatcher()
{
    if (s_KeypadDispatcher)
    {
        s_KeypadDispatcher->release();
        s_KeypadDispatcher = NULL;
    }
}

void CCKeypadDispatcher::removeDelegate(CCKeypadDelegate* pDelegate)
{
    if (!pDelegate)
    {
        return;
    }
    if (! m_bLocked)
    {
        forceRemoveDelegate(pDelegate);
    }
    else
    {
        ccCArrayAppendValue(m_pHandlersToRemove, pDelegate);
        m_bToRemove = true;
    }
}

void CCKeypadDispatcher::addDelegate(CCKeypadDelegate* pDelegate)
{
    if (!pDelegate)
    {
        return;
    }

    if (! m_bLocked)
    {
        forceAddDelegate(pDelegate);
    }
    else
    {
        ccCArrayAppendValue(m_pHandlersToAdd, pDelegate);
        m_bToAdd = true;
    }
}

void CCKeypadDispatcher::forceAddDelegate(CCKeypadDelegate* pDelegate)
{
    CCKeypadHandler* pHandler = CCKeypadHandler::handlerWithDelegate(pDelegate);

    if (pHandler)
    {
        m_pDelegates->addObject(pHandler);
    }
}

void CCKeypadDispatcher::forceRemoveDelegate(CCKeypadDelegate* pDelegate)
{
    CCKeypadHandler  *pHandler;
    CCMutableArray<CCKeypadHandler*>::CCMutableArrayIterator  iter;

    for (iter = m_pDelegates->begin(); iter != m_pDelegates->end(); ++iter)
    {
        pHandler = *iter;
        if (pHandler && pHandler->getDelegate() == pDelegate)
        {
            m_pDelegates->removeObject(pHandler);
            break;
        }
    }
}

bool CCKeypadDispatcher::dispatchKeypadMSG(ccKeypadMSGType nMsgType)
{
    CCKeypadHandler  *pHandler;
    CCKeypadDelegate *pDelegate;
    CCMutableArray<CCKeypadHandler*>::CCMutableArrayIterator  iter;

    m_bLocked = true;

    if (m_pDelegates->count() > 0)
    {
        for (iter = m_pDelegates->begin(); iter != m_pDelegates->end(); ++iter)
        {
            CC_BREAK_IF(!(*iter));

            pHandler = *iter;
            pDelegate = pHandler->getDelegate();

            switch (nMsgType)
            {
            case kTypeBackClicked:
                pDelegate->keyBackClicked();
                break;
            case kTypeMenuClicked:
                pDelegate->keyMenuClicked();
                break;
            default:
                break;
            }
        }
    }

    m_bLocked = false;
    if (m_bToRemove)
    {
        m_bToRemove = false;
        for (unsigned int i = 0; i < m_pHandlersToRemove->num; ++i)
        {
            forceRemoveDelegate((CCKeypadDelegate*)m_pHandlersToRemove->arr[i]);
        }
        ccCArrayRemoveAllValues(m_pHandlersToRemove);
    }

    if (m_bToAdd)
    {
        m_bToAdd = false;
        for (unsigned int i = 0; i < m_pHandlersToAdd->num; ++i)
        {
            forceAddDelegate((CCKeypadDelegate*)m_pHandlersToAdd->arr[i]);
        }
        ccCArrayRemoveAllValues(m_pHandlersToAdd);
    }

    return true;
}

}