/*

* Copyright (C) 2016 Igalia, S.L.

* 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT

* OWNER 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.

*/

#pragma once

#include "AXLoggerBase.h"

#include "AccessibilityRenderObject.h"

#include <wtf/WeakPtr.h>

namespace WebCore {

class AccessibilitySVGObject : public AccessibilityRenderObject {

public:

static Ref<AccessibilitySVGObject> create(AXID, RenderObject&, AXObjectCache&, bool isSVGRoot = false);

static Ref<AccessibilitySVGObject> create(AXID, Element&, AXObjectCache&, bool isSVGRoot = false);

virtual ~AccessibilitySVGObject();

AccessibilityObject* parentObject() const override;

void setParent(AccessibilityRenderObject*);

bool isRootWithAccessibleContent() const;

bool isAccessibilitySVGObjectInstance() const final { return true; }

bool isAccessibilitySVGRoot() const final { return m_isSVGRoot; }

protected:

explicit AccessibilitySVGObject(AXID, RenderObject&, AXObjectCache&, bool isSVGRoot);

explicit AccessibilitySVGObject(AXID, Element&, AXObjectCache&, bool isSVGRoot);

AccessibilityRole determineAriaRoleAttribute() const final;

private:

String description() const final;

String helpText() const final;

void accessibilityText(Vector<AccessibilityText>&) const final;

AccessibilityRole determineAccessibilityRole() override;

bool inheritsPresentationalRole() const final;

bool computeIsIgnored() const final;

AccessibilityObject* targetForUseElement() const;

// Returns true if the SVG element associated with this object has a <title> or <desc> child.

bool hasTitleOrDescriptionChild() const;

struct MatchingLanguageChildren {

RefPtr<Element> title;

RefPtr<Element> desc;

};

MatchingLanguageChildren matchingTitleAndDescChildren() const;

String descriptionFromTitleChild(Element* titleChild) const;

String helpTextFromChildren(Element* titleChild, Element* descChild, const String& descriptionText) const;

// Set for remote SVG resources, on the root.

WeakPtr<AccessibilityRenderObject> m_parent;

};

inline void AccessibilitySVGObject::setParent(AccessibilityRenderObject* parent)

{

AX_ASSERT(m_isSVGRoot);

m_parent = parent;

}

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::AccessibilitySVGObject) \

static bool isType(const WebCore::AccessibilityObject& object) { return object.isAccessibilitySVGObjectInstance(); } \

SPECIALIZE_TYPE_TRAITS_END()