File content as of revision 2:6751a7b70582:

/**
  ******************************************************************************
  * @file       WriteUriCallbacks.h
  * @date       12/07/2017
  * @brief      Class to write a URI tag.
  ******************************************************************************
  *
  * COPYRIGHT(c) 2017 STMicroelectronics
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

#include "mbed.h"
#include "NDefLib/RecordType/RecordURI.h"
 
/**
 * Chain of callback that will crate a Uri record and write it.
 * After each operation the class will switch on a led
 */
class WriteUriCallbacks : public NDefLib::NDefNfcTag::Callbacks {
 
    DigitalOut &mOnOpenSession;
    DigitalOut &mOnWrite;
    DigitalOut &mOnCloseSession;
    NDefLib::Message *mMsg;
 
public:
 
    /**
     * create the callback chain
     * @param onOpenSession led to switch on when the session open
     * @param onWrite led to switch on when the write end
     * @param onCloseSession led to switch on when the session end
     */
    WriteUriCallbacks(DigitalOut &onOpenSession,DigitalOut &onWrite,
        DigitalOut &onCloseSession):mOnOpenSession(onOpenSession),
        mOnWrite(onWrite),mOnCloseSession(onCloseSession){};
 
    /**
     * crate the new message and write it
     * @param tag tag where write the message
     * @param success true if the session correctly open
     */
    virtual void on_session_open(NDefLib::NDefNfcTag *tag,bool success) {
        if (!success) {
            printf("Error opening the session\r\n");
        }//else
        printf("Session opened\r\n");
        //ask to have an interrupt when the command finish
        mOnOpenSession=1;
        mOnCloseSession=0;
        
        NDefLib::RecordURI *rUri = new NDefLib::RecordURI(NDefLib::RecordURI::HTTP_WWW,"http://www.st.com");
		mMsg = new NDefLib::Message();
        mMsg->add_record(rUri);
 
        tag->write(*mMsg);
    }
 
    /**
     * request to close the session
     * @param tag tag where close the session
     * @param success true if the message is correctly wrote
     * @param message wrote
     */
    virtual void on_message_write(NDefLib::NDefNfcTag *tag,bool success) {
 
        if (!success) {
            printf("Error writing tag!\r\n");
        } else {
            printf("Tag written!\r\n");
            mOnWrite=1;
        }//if-else
			
		NDefLib::Message::remove_and_delete_all_record(*mMsg);
		delete mMsg;
        tag->close_session();
    }
 
    /**
     * switch on the led
     * @param tag where the session is closed
     * @param success true if the session is correctly close
     */
    virtual void on_session_close(NDefLib::NDefNfcTag*, bool success) {
        if (success) {
            printf("Session closed\r\n");
            mOnCloseSession=1;
            mOnOpenSession=0;
            mOnWrite=0;
        } else {
            printf("Error closing the session\r\n");
        }
    }
};