third_party/blink/renderer/modules/accessibility/ax_menu_list_option.h

/*
 * Copyright (C) 2010 Apple Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_ACCESSIBILITY_AX_MENU_LIST_OPTION_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_ACCESSIBILITY_AX_MENU_LIST_OPTION_H_

#include "third_party/blink/renderer/core/html/forms/html_option_element.h"
#include "third_party/blink/renderer/modules/accessibility/ax_node_object.h"

namespace blink {

class AXObjectCacheImpl;

class AXMenuListOption final : public AXNodeObject {
 public:
  AXMenuListOption(HTMLOptionElement*, AXObjectCacheImpl&);

  AXMenuListOption(const AXMenuListOption&) = delete;
  AXMenuListOption& operator=(const AXMenuListOption&) = delete;

  ~AXMenuListOption() override = default;

  // For an <option>/<optgroup>, return an AXObject* for its popup, if any,
  // otherwise return null.
  static AXObject* ComputeParentAXMenuPopupFor(AXObjectCacheImpl& cache,
                                               HTMLOptionElement* option);

 private:
  bool IsMenuListOption() const override { return true; }

  bool CanHaveChildren() const override { return false; }

  Element* ActionElement() const override;
  bool IsVisible() const override;
  bool IsOffScreen() const override;
  AccessibilitySelectedState IsSelected() const override;
  bool OnNativeClickAction() override;
  bool OnNativeSetSelectedAction(bool) override;

  void GetRelativeBounds(AXObject** out_container,
                         gfx::RectF& out_bounds_in_container,
                         gfx::Transform& out_container_transform,
                         bool* clips_children = nullptr) const override;
  String TextAlternative(bool recursive,
                         const AXObject* aria_label_or_description_root,
                         AXObjectSet& visited,
                         ax::mojom::NameFrom&,
                         AXRelatedObjectVector*,
                         NameSources*) const override;
  bool ComputeAccessibilityIsIgnored(IgnoredReasons* = nullptr) const override;
};

template <>
struct DowncastTraits<AXMenuListOption> {
  static bool AllowFrom(const AXObject& object) {
    return object.IsMenuListOption();
  }
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_ACCESSIBILITY_AX_MENU_LIST_OPTION_H_