system/controls/formcontrolcheckbox.php

<?php

namespace Habari;

class FormControlCheckbox extends FormControl
{
  public $returned_value;

  public function _extend()
  {
    $this->properties['type'] = 'checkbox';
    $this->settings['internal_value'] = true;
    $this->returned_value = true;
  }

  public function get(Theme $theme)
  {
    // Because this is a checkbox, the value isn't directly output in the control
    $this->properties['value'] = $this->returned_value;
    if($this->value == false) {
      unset($this->properties['checked']);
    }
    else {
      $this->properties['checked'] = 'checked';
    }
    return parent::get($theme);
  }

  public function process()
  {
    if(isset($_POST[$this->input_name()]) && $_POST[$this->input_name()] == $this->returned_value) {
      $this->value = $this->returned_value;
    }
    else {
      $this->value = false;
    }
  }

  public function set_returned_value($returned_value)
  {
    $this->returned_value = $returned_value;
    return $this;
  }

  public function set_value($value, $manually = true)
  {
    if($value != false) {
      $this->returned_value = $value;
    }
    return parent::set_value($value, $manually);
  }


}

?>