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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_a11y_HTMLImageMapAccessible_h__
#define mozilla_a11y_HTMLImageMapAccessible_h__
#include "HTMLLinkAccessible.h"
#include "ImageAccessible.h"
namespace mozilla {
namespace a11y {
/**
* Used for HTML image maps.
*/
class HTMLImageMapAccessible final : public ImageAccessible {
public:
HTMLImageMapAccessible(nsIContent* aContent, DocAccessible* aDoc);
// nsISupports and cycle collector
NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLImageMapAccessible, ImageAccessible)
// LocalAccessible
virtual a11y::role NativeRole() const override;
// HyperLinkAccessible
virtual uint32_t AnchorCount() override;
virtual LocalAccessible* AnchorAt(uint32_t aAnchorIndex) override;
virtual already_AddRefed<nsIURI> AnchorURIAt(
uint32_t aAnchorIndex) const override;
/**
* Update area children of the image map.
*/
void UpdateChildAreas(bool aDoFireEvents = true);
/**
* Return accessible of child node.
*/
LocalAccessible* GetChildAccessibleFor(const nsINode* aNode) const;
protected:
virtual ~HTMLImageMapAccessible() {}
};
/**
* Accessible for image map areas - must be child of image.
*/
class HTMLAreaAccessible final : public HTMLLinkAccessible {
public:
HTMLAreaAccessible(nsIContent* aContent, DocAccessible* aDoc);
// LocalAccessible
virtual void Description(nsString& aDescription) const override;
virtual LocalAccessible* LocalChildAtPoint(
int32_t aX, int32_t aY, EWhichChildAtPoint aWhichChild) override;
virtual nsRect RelativeBounds(nsIFrame** aBoundingFrame) const override;
virtual nsRect ParentRelativeBounds() override;
// HyperLinkAccessible
virtual uint32_t StartOffset() override;
virtual uint32_t EndOffset() override;
virtual bool IsAcceptableChild(nsIContent* aEl) const override {
return false;
}
protected:
// LocalAccessible
virtual ENameValueFlag NativeName(nsString& aName) const override;
};
////////////////////////////////////////////////////////////////////////////////
// LocalAccessible downcasting method
inline HTMLImageMapAccessible* LocalAccessible::AsImageMap() {
return IsImageMap() ? static_cast<HTMLImageMapAccessible*>(this) : nullptr;
}
} // namespace a11y
} // namespace mozilla
#endif