2019-11-23 20:27:39 +08:00
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/****************************************************************************
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Copyright (c) 2010 cocos2d-x.org
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Copyright (c) 2013-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __CC_IME_DELEGATE_H__
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#define __CC_IME_DELEGATE_H__
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#include <string>
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#include "math/CCMath.h"
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#include "base/CCEventKeyboard.h"
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/**
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* @addtogroup base
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* @{
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*/
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NS_CC_BEGIN
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/**
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* A static global empty std::string install.
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*/
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extern const std::string CC_DLL STD_STRING_EMPTY;
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/**
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* Keyboard notification event type.
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*/
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typedef struct
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{
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Rect begin; // the soft keyboard rectangle when animation begins
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Rect end; // the soft keyboard rectangle when animation ends
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float duration; // the soft keyboard animation duration
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} IMEKeyboardNotificationInfo;
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/**
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*@brief Input method editor delegate.
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*/
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class CC_DLL IMEDelegate
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{
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public:
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/**
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* Default constructor.
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* @js NA
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* @lua NA
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*/
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virtual ~IMEDelegate();
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/**
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* Default destructor.
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* @js NA
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* @lua NA
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*/
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virtual bool attachWithIME();
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/**
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* Determine whether the IME is detached or not.
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* @js NA
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* @lua NA
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*/
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virtual bool detachWithIME();
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protected:
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friend class IMEDispatcher;
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/**
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@brief Decide if the delegate instance is ready to receive an IME message.
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Called by IMEDispatcher.
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* @js NA
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* @lua NA
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*/
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virtual bool canAttachWithIME() { return false; }
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/**
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@brief When the delegate detaches from the IME, this method is called by IMEDispatcher.
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* @js NA
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* @lua NA
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*/
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virtual void didAttachWithIME() {}
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/**
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@brief Decide if the delegate instance can stop receiving IME messages.
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* @js NA
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* @lua NA
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*/
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virtual bool canDetachWithIME() { return false; }
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/**
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@brief When the delegate detaches from the IME, this method is called by IMEDispatcher.
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* @js NA
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* @lua NA
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*/
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virtual void didDetachWithIME() {}
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/**
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@brief Called by IMEDispatcher when text input received from the IME.
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* @js NA
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* @lua NA
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*/
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virtual void insertText(const char* /*text*/, size_t /*len*/) {}
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/**
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@brief Called by IMEDispatcher after the user clicks the backward key.
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* @js NA
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* @lua NA
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*/
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virtual void deleteBackward() {}
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/**
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@brief Called by IMEDispatcher after the user press control key.
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* @js NA
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* @lua NA
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*/
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virtual void controlKey(EventKeyboard::KeyCode /*keyCode*/) {}
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/**
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@brief Called by IMEDispatcher for text stored in delegate.
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* @js NA
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* @lua NA
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*/
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virtual const std::string& getContentText() { return STD_STRING_EMPTY; }
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//////////////////////////////////////////////////////////////////////////
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// keyboard show/hide notification
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//////////////////////////////////////////////////////////////////////////
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/**
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* @js NA
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* @lua NA
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*/
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virtual void keyboardWillShow(IMEKeyboardNotificationInfo& /*info*/) {}
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/**
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* @js NA
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* @lua NA
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*/
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virtual void keyboardDidShow(IMEKeyboardNotificationInfo& /*info*/) {}
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/**
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* @js NA
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* @lua NA
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*/
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virtual void keyboardWillHide(IMEKeyboardNotificationInfo& /*info*/) {}
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/**
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* @js NA
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* @lua NA
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*/
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virtual void keyboardDidHide(IMEKeyboardNotificationInfo& /*info*/) {}
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protected:
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/**
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* @js NA
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* @lua NA
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*/
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IMEDelegate();
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};
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NS_CC_END
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// end of base group
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/// @}
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2021-12-25 10:04:45 +08:00
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#endif // __CC_IME_DELEGATE_H__
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