src/modules/utils/pausebutton/PauseButton.cpp

   1 #include "libs/Kernel.h"
   2 #include "PauseButton.h"
   3 #include "libs/nuts_bolts.h"
   4 #include "libs/utils.h"
   5 #include <string>
   6 using namespace std;
   7
   8 PauseButton::PauseButton(){}
   9
  10 void PauseButton::on_module_loaded(){
  11     this->button_state = true;
  12     this->play_state   = true;
  13
  14     this->enable     =  THEKERNEL->config->value( pause_button_enable_checksum )->by_default(false)->as_bool();
  15     this->button.from_string( THEKERNEL->config->value( pause_button_pin_checksum )->by_default("2.12")->as_string())->as_input();
  16
  17     THEKERNEL->slow_ticker->attach( 100, this, &PauseButton::button_tick );
  18 }
  19
  20 //TODO: Make this use InterruptIn
  21 //Check the state of the button and act accordingly
  22 uint32_t PauseButton::button_tick(uint32_t dummy){
  23     if(!this->enable) return 0;
  24     // If button changed
  25     bool newstate = this->button.get();
  26     if(this->button_state != newstate){
  27         this->button_state = newstate;
  28         // If button pressed
  29         if( this->button_state ){
  30             if( this->play_state ){
  31                 this->play_state = false;
  32                 THEKERNEL->pauser->take();
  33             }else{
  34                 this->play_state = true;
  35                 THEKERNEL->pauser->release();
  36             }
  37         }
  38     }
  39     return 0;
  40 }