File content as of revision 7:7d56935ba84d:

/*
MultiClick.cpp:
  For one button operation.
  This library suports these events,
    * Single click
    * Double click
    * N times click (over 3 times click)
    * Long press

The MIT License (MIT)

Copyright (c) 2016 Uematsu Electric Co.,Ltd. Toru OHTSUKA <t-ohtsuka@jupiter.ocn.ne.jp>

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 "MultiClick.h"

MultiClick::MultiClick(PinName p, PinMode m)
{
    _iin = new InterruptIn(p);
    _mode = m;
    
    _iin->mode(_mode);

    if(_mode == PullUp) {
         DBG_PRINT("isr fall.\r\n");
        _iin->fall(this, &MultiClick::isr_pressed);
    } else {
         DBG_PRINT("isr rise.\r\n");
        _iin->rise(this, &MultiClick::isr_pressed);
    }
    
    _click_detect_timeout = new Timeout();
    _press_check = new Ticker();

    _press_check_interval_us = 25*1000;
    _shortpress_num = 1;
    _longpress_num = 20;
    _click_interval_us = 300*1000;
    
    _pressed_count = 0;
    _longpressed = false;
}

void MultiClick::isr_pressed( void )
{
    DBG_PRINT("isr_pressed called:\r\n");
    fflush(stdout);

    if(_pressed_count > 0) { // 「プレス中のプレス」
        DBG_PRINT("_[%d]", _pressed_count);
        press_check_func();
    } else { // 通常時
        // プレス判定処理開始
        _pressed_count = 0;
        _press_check->detach();
        _press_check->attach_us(this, &MultiClick::press_check_func, _press_check_interval_us );
        
        _longpressed = false;
    }
}

void MultiClick::press_check_func( void )
{
    int curr_state;
    curr_state = _iin->read();
    
    if(curr_state == 0) { // 押されている場合
        DBG_PRINT(".");
        _pressed_count++;
        // 長押しチェック
        if(_pressed_count > _longpress_num) {
            if(_longpressed != true) {
                if(_c_callback_longpressed != 0) {
                    (*_c_callback_longpressed)();
                }
                _longpressed = true;
            }
        }
    } else { // 押されていない場合
        DBG_PRINT("# _pressed_count=%d\r\n", _pressed_count);
        
        if(_pressed_count >= _shortpress_num) {
            _click_times++;
        }
        DBG_PRINT("# _click_times=%d\r\n", _click_times);
        
        _press_check->detach();    // 　プレスチェックを停止
        _pressed_count = 0;

        _click_detect_timeout->detach(); // マルチクリック検出用タイマーを設定
        _click_detect_timeout->attach_us(this, &MultiClick::click_detect_timeout, _click_interval_us );
        
    }
    
}

void MultiClick::click_detect_timeout( void )
{
    DBG_PRINT("-> click_detect T.O.\r\n");

    if(_longpressed) { // 長押し時は何もしない
        DBG_PRINT("-> skip n click C.B. \r\n");
    } else { // クリックイベントを通知
        switch( _click_times ) {
        case 0:
            DBG_PRINT("error! 0 click\r\n");
            break;
        
        case 1:
            if(_c_callback_clicked != 0) {
                (*_c_callback_clicked)();
            }
            break;
    
        case 2:
            if(_c_callback_doubleclicked != 0) {
                (*_c_callback_doubleclicked)();
            }
            break;
        default:
            if(_c_callback_n_clicked != 0) {
                (*_c_callback_n_clicked)(_click_times);
            }
        }
    }
    
    _click_times = 0;
    _pressed_count = 0;
}

void MultiClick::attach_clicked(void (*function)(void) = 0) { _c_callback_clicked = function; }

void MultiClick::attach_doubleclicked(void (*function)(void) = 0) { _c_callback_doubleclicked = function; }

void MultiClick::attach_n_clicked(void (*function)(int) = 0) { _c_callback_n_clicked = function; }

void MultiClick::attach_longpressed(void (*function)(void) = 0) { _c_callback_longpressed = function; }