blob: 3d9f3abd07b93c1e0c4f81b6edb0050f039846fa [file] [log] [blame]
/*
* Copyright (C) 2011 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 AND ITS CONTRIBUTORS "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 OR ITS 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 AXScrollView_h
#define AXScrollView_h
#include "modules/accessibility/AXObject.h"
namespace blink {
class AXObjectCacheImpl;
class AXScrollbar;
class Scrollbar;
class FrameView;
class AXScrollView final : public AXObject {
public:
static AXScrollView* create(FrameView*, AXObjectCacheImpl&);
AccessibilityRole roleValue() const override { return ScrollAreaRole; }
~AXScrollView() override;
DECLARE_VIRTUAL_TRACE();
void detach() override;
protected:
ScrollableArea* getScrollableAreaIfScrollable() const override;
private:
AXScrollView(FrameView*, AXObjectCacheImpl&);
bool computeAccessibilityIsIgnored(IgnoredReasons* = nullptr) const override;
bool isAXScrollView() const override { return true; }
bool isEnabled() const override { return true; }
bool isAttachment() const override;
Widget* widgetForAttachmentView() const override;
AXObject* scrollBar(AccessibilityOrientation) override;
void addChildren() override;
void clearChildren() override;
AXObject* accessibilityHitTest(const IntPoint&) const override;
void updateChildrenIfNecessary() override;
void setNeedsToUpdateChildren() override { m_childrenDirty = true; }
void updateScrollbars();
FrameView* documentFrameView() const override;
LayoutRect elementRect() const override;
AXObject* computeParent() const override;
AXObject* computeParentIfExists() const override;
AXObject* webAreaObject() const;
AXObject* rawFirstChild() const override { return webAreaObject(); }
AXScrollbar* addChildScrollbar(Scrollbar*);
void removeChildScrollbar(AXObject*);
RawPtrWillBeMember<FrameView> m_scrollView;
Member<AXObject> m_horizontalScrollbar;
Member<AXObject> m_verticalScrollbar;
bool m_childrenDirty;
};
} // namespace blink
#endif // AXScrollView_h