/**************************************************************************** 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 in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ****************************************************************************/ #include "CCIMEDispatcher.h" #include <list> NS_CC_BEGIN ////////////////////////////////////////////////////////////////////////// // add/remove delegate in CCIMEDelegate Cons/Destructor ////////////////////////////////////////////////////////////////////////// CCIMEDelegate::CCIMEDelegate() { CCIMEDispatcher::sharedDispatcher()->addDelegate(this); } CCIMEDelegate::~CCIMEDelegate() { CCIMEDispatcher::sharedDispatcher()->removeDelegate(this); } bool CCIMEDelegate::attachWithIME() { return CCIMEDispatcher::sharedDispatcher()->attachDelegateWithIME(this); } bool CCIMEDelegate::detachWithIME() { return CCIMEDispatcher::sharedDispatcher()->detachDelegateWithIME(this); } ////////////////////////////////////////////////////////////////////////// typedef std::list< CCIMEDelegate * > DelegateList; typedef std::list< CCIMEDelegate * >::iterator DelegateIter; ////////////////////////////////////////////////////////////////////////// // Delegate List manage class ////////////////////////////////////////////////////////////////////////// class CCIMEDispatcher::Impl { public: Impl() { } ~Impl() { } void init() { m_DelegateWithIme = 0; } DelegateIter findDelegate(CCIMEDelegate* pDelegate) { DelegateIter end = m_DelegateList.end(); for (DelegateIter iter = m_DelegateList.begin(); iter != end; ++iter) { if (pDelegate == *iter) { return iter; } } return end; } DelegateList m_DelegateList; CCIMEDelegate* m_DelegateWithIme; }; ////////////////////////////////////////////////////////////////////////// // Cons/Destructor ////////////////////////////////////////////////////////////////////////// CCIMEDispatcher::CCIMEDispatcher() : m_pImpl(new CCIMEDispatcher::Impl) { m_pImpl->init(); } CCIMEDispatcher::~CCIMEDispatcher() { CC_SAFE_DELETE(m_pImpl); } ////////////////////////////////////////////////////////////////////////// // Add/Attach/Remove CCIMEDelegate ////////////////////////////////////////////////////////////////////////// void CCIMEDispatcher::addDelegate(CCIMEDelegate* pDelegate) { if (! pDelegate || ! m_pImpl) { return; } if (m_pImpl->m_DelegateList.end() != m_pImpl->findDelegate(pDelegate)) { // pDelegate already in list return; } m_pImpl->m_DelegateList.push_front(pDelegate); } bool CCIMEDispatcher::attachDelegateWithIME(CCIMEDelegate * pDelegate) { bool bRet = false; do { CC_BREAK_IF(! m_pImpl || ! pDelegate); DelegateIter end = m_pImpl->m_DelegateList.end(); DelegateIter iter = m_pImpl->findDelegate(pDelegate); // if pDelegate is not in delegate list, return CC_BREAK_IF(end == iter); if (m_pImpl->m_DelegateWithIme) { // if old delegate canDetachWithIME return false // or pDelegate canAttachWithIME return false, // do nothing. CC_BREAK_IF(! m_pImpl->m_DelegateWithIme->canDetachWithIME() || ! pDelegate->canAttachWithIME()); // detach first CCIMEDelegate * pOldDelegate = m_pImpl->m_DelegateWithIme; m_pImpl->m_DelegateWithIme = 0; pOldDelegate->didDetachWithIME(); m_pImpl->m_DelegateWithIme = *iter; pDelegate->didAttachWithIME(); bRet = true; break; } // delegate hasn't attached to IME yet CC_BREAK_IF(! pDelegate->canAttachWithIME()); m_pImpl->m_DelegateWithIme = *iter; pDelegate->didAttachWithIME(); bRet = true; } while (0); return bRet; } bool CCIMEDispatcher::detachDelegateWithIME(CCIMEDelegate * pDelegate) { bool bRet = false; do { CC_BREAK_IF(! m_pImpl || ! pDelegate); // if pDelegate is not the current delegate attached to IME, return CC_BREAK_IF(m_pImpl->m_DelegateWithIme != pDelegate); CC_BREAK_IF(! pDelegate->canDetachWithIME()); m_pImpl->m_DelegateWithIme = 0; pDelegate->didDetachWithIME(); bRet = true; } while (0); return bRet; } void CCIMEDispatcher::removeDelegate(CCIMEDelegate* pDelegate) { do { CC_BREAK_IF(! pDelegate || ! m_pImpl); DelegateIter iter = m_pImpl->findDelegate(pDelegate); DelegateIter end = m_pImpl->m_DelegateList.end(); CC_BREAK_IF(end == iter); if (m_pImpl->m_DelegateWithIme) if (*iter == m_pImpl->m_DelegateWithIme) { m_pImpl->m_DelegateWithIme = 0; } m_pImpl->m_DelegateList.erase(iter); } while (0); } ////////////////////////////////////////////////////////////////////////// // dispatch text message ////////////////////////////////////////////////////////////////////////// void CCIMEDispatcher::dispatchInsertText(const char * pText, int nLen) { do { CC_BREAK_IF(! m_pImpl || ! pText || nLen <= 0); // there is no delegate attached to IME CC_BREAK_IF(! m_pImpl->m_DelegateWithIme); m_pImpl->m_DelegateWithIme->insertText(pText, nLen); } while (0); } void CCIMEDispatcher::dispatchDeleteBackward() { do { CC_BREAK_IF(! m_pImpl); // there is no delegate attached to IME CC_BREAK_IF(! m_pImpl->m_DelegateWithIme); m_pImpl->m_DelegateWithIme->deleteBackward(); } while (0); } const char * CCIMEDispatcher::getContentText() { const char * pszContentText = 0; if (m_pImpl && m_pImpl->m_DelegateWithIme) { pszContentText = m_pImpl->m_DelegateWithIme->getContentText(); } return (pszContentText) ? pszContentText : ""; } ////////////////////////////////////////////////////////////////////////// // dispatch keyboard message ////////////////////////////////////////////////////////////////////////// void CCIMEDispatcher::dispatchKeyboardWillShow(CCIMEKeyboardNotificationInfo& info) { if (m_pImpl) { CCIMEDelegate * pDelegate = 0; DelegateIter last = m_pImpl->m_DelegateList.end(); for (DelegateIter first = m_pImpl->m_DelegateList.begin(); first != last; ++first) { pDelegate = *(first); if (pDelegate) { pDelegate->keyboardWillShow(info); } } } } void CCIMEDispatcher::dispatchKeyboardDidShow(CCIMEKeyboardNotificationInfo& info) { if (m_pImpl) { CCIMEDelegate * pDelegate = 0; DelegateIter last = m_pImpl->m_DelegateList.end(); for (DelegateIter first = m_pImpl->m_DelegateList.begin(); first != last; ++first) { pDelegate = *(first); if (pDelegate) { pDelegate->keyboardDidShow(info); } } } } void CCIMEDispatcher::dispatchKeyboardWillHide(CCIMEKeyboardNotificationInfo& info) { if (m_pImpl) { CCIMEDelegate * pDelegate = 0; DelegateIter last = m_pImpl->m_DelegateList.end(); for (DelegateIter first = m_pImpl->m_DelegateList.begin(); first != last; ++first) { pDelegate = *(first); if (pDelegate) { pDelegate->keyboardWillHide(info); } } } } void CCIMEDispatcher::dispatchKeyboardDidHide(CCIMEKeyboardNotificationInfo& info) { if (m_pImpl) { CCIMEDelegate * pDelegate = 0; DelegateIter last = m_pImpl->m_DelegateList.end(); for (DelegateIter first = m_pImpl->m_DelegateList.begin(); first != last; ++first) { pDelegate = *(first); if (pDelegate) { pDelegate->keyboardDidHide(info); } } } } ////////////////////////////////////////////////////////////////////////// // protected member function ////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////// // static member function ////////////////////////////////////////////////////////////////////////// CCIMEDispatcher* CCIMEDispatcher::sharedDispatcher() { static CCIMEDispatcher s_instance; return &s_instance; } NS_CC_END