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/*
* Copyright (C) 2008 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 THIRD_PARTY_BLINK_RENDERER_MODULES_ACCESSIBILITY_AX_IMAGE_MAP_LINK_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_ACCESSIBILITY_AX_IMAGE_MAP_LINK_H_
#include "third_party/blink/renderer/core/html/html_area_element.h"
#include "third_party/blink/renderer/modules/accessibility/ax_node_object.h"
namespace blink {
class AXObjectCacheImpl;
class HTMLMapElement;
class AXImageMapLink final : public AXNodeObject {
public:
explicit AXImageMapLink(HTMLAreaElement*, AXObjectCacheImpl&);
AXImageMapLink(const AXImageMapLink&) = delete;
AXImageMapLink& operator=(const AXImageMapLink&) = delete;
~AXImageMapLink() override;
void Trace(Visitor*) const override;
HTMLAreaElement* AreaElement() const {
return To<HTMLAreaElement>(GetNode());
}
HTMLMapElement* MapElement() const;
ax::mojom::blink::Role NativeRoleIgnoringAria() const override;
bool CanHaveChildren() const override {
// If the area has child nodes, those will be rendered, and the combination
// of Role::kGenericContainer and CanHaveChildren() = true allows for those
// children to show in the AX hierarchy.
return RoleValue() == ax::mojom::blink::Role::kGenericContainer;
}
Element* AnchorElement() const override;
Element* ActionElement() const override;
KURL Url() const override;
bool IsLinked() const override { return true; }
// For an <area>, return an <img> that should be used as its parent, or null.
static AXObject* GetAXObjectForImageMap(AXObjectCacheImpl& cache, Node* area);
void GetRelativeBounds(AXObject** out_container,
gfx::RectF& out_bounds_in_container,
gfx::Transform& out_container_transform,
bool* clips_children = nullptr) const override;
private:
bool IsImageMapLink() const override;
};
template <>
struct DowncastTraits<AXImageMapLink> {
static bool AllowFrom(const AXObject& object) {
return object.IsImageMapLink();
}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_ACCESSIBILITY_AX_IMAGE_MAP_LINK_H_
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