text: /*
   * Copyright (c) 2021, Cesar Torres <shortanemoia@protonmail.com>
   *
   * SPDX-License-Identifier: BSD-2-Clause
   */
  
  #pragma once
  
  #include <LibGUI/Slider.h>
  
  class AutoSlider final : public GUI::Slider {
      C_OBJECT(AutoSlider)
  public:
      ~AutoSlider() override = default;
      Function<void(int)> on_knob_released;
      virtual void set_value(int value, GUI::AllowCallback allow_callback = GUI::AllowCallback::Yes) override
      {
          if (!knob_dragging() && !mouse_is_down())
              GUI::Slider::set_value(value, allow_callback);
      }
  
      bool mouse_is_down() const { return m_mouse_is_down; }
  
  private:
      AutoSlider(Orientation orientation)
          : GUI::Slider(orientation)
      {
      }
  
      virtual void mousedown_event(GUI::MouseEvent& event) override
      {
          m_mouse_is_down = true;
          GUI::Slider::mousedown_event(event);
      }
  
      virtual void mouseup_event(GUI::MouseEvent& event) override
      {
          m_mouse_is_down = false;
          if (on_knob_released && is_enabled())
              on_knob_released(value());
  
          GUI::Slider::mouseup_event(event);
      }
  
      bool m_mouse_is_down { false };
  };
  