chromium/ui/views/controls/scrollbar/scroll_bar.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_VIEWS_CONTROLS_SCROLLBAR_SCROLL_BAR_H_
#define UI_VIEWS_CONTROLS_SCROLLBAR_SCROLL_BAR_H_

#include <memory>
#include <optional>

#include "base/gtest_prod_util.h"
#include "base/memory/raw_ptr.h"
#include "ui/base/models/simple_menu_model.h"
#include "ui/views/animation/scroll_animator.h"
#include "ui/views/context_menu_controller.h"
#include "ui/views/controls/button/image_button.h"
#include "ui/views/repeat_controller.h"
#include "ui/views/view.h"
#include "ui/views/views_export.h"

namespace views {

namespace test {
class ScrollViewTestApi;
}

class BaseScrollBarThumb;
class MenuRunner;

class ScrollBar;

/////////////////////////////////////////////////////////////////////////////
//
// ScrollBarController
//
// ScrollBarController defines the method that should be implemented to
// receive notification from a scrollbar
//
/////////////////////////////////////////////////////////////////////////////
class VIEWS_EXPORT ScrollBarController { … };

/////////////////////////////////////////////////////////////////////////////
//
// ScrollBar
//
// A View subclass to wrap to implement a ScrollBar. Our current windows
// version simply wraps a native windows scrollbar.
//
// A scrollbar is either horizontal or vertical
//
/////////////////////////////////////////////////////////////////////////////
class VIEWS_EXPORT ScrollBar : public View,
                               public ScrollDelegate,
                               public ContextMenuController,
                               public ui::SimpleMenuModel::Delegate { … };

}  // namespace views

#endif  // UI_VIEWS_CONTROLS_SCROLLBAR_SCROLL_BAR_H_