gecko-dev/accessible/html/HTMLListAccessible.h

86 строки
2.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* 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_HTMLListAccessible_h__
#define mozilla_a11y_HTMLListAccessible_h__
#include "BaseAccessibles.h"
#include "HyperTextAccessible.h"
namespace mozilla {
namespace a11y {
class HTMLListBulletAccessible;
/**
* Used for HTML list (like HTML ul).
*/
class HTMLListAccessible : public HyperTextAccessible {
public:
HTMLListAccessible(nsIContent* aContent, DocAccessible* aDoc)
: HyperTextAccessible(aContent, aDoc) {
mGenericTypes |= eList;
}
// nsISupports
NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLListAccessible, HyperTextAccessible)
// LocalAccessible
virtual a11y::role NativeRole() const override;
virtual uint64_t NativeState() const override;
protected:
virtual ~HTMLListAccessible() {}
};
/**
* Used for HTML list item (e.g. HTML li).
*/
class HTMLLIAccessible : public HyperTextAccessible {
public:
HTMLLIAccessible(nsIContent* aContent, DocAccessible* aDoc);
// nsISupports
NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLLIAccessible, HyperTextAccessible)
// LocalAccessible
virtual nsRect BoundsInAppUnits() const override;
virtual a11y::role NativeRole() const override;
virtual uint64_t NativeState() const override;
// HTMLLIAccessible
LocalAccessible* Bullet() const;
protected:
virtual ~HTMLLIAccessible() {}
};
/**
* Used for bullet of HTML list item element (for example, HTML li).
*/
class HTMLListBulletAccessible : public LeafAccessible {
public:
HTMLListBulletAccessible(nsIContent* aContent, DocAccessible* aDoc);
virtual ~HTMLListBulletAccessible() {}
// LocalAccessible
virtual ENameValueFlag Name(nsString& aName) const override;
virtual a11y::role NativeRole() const override;
virtual uint64_t NativeState() const override;
virtual already_AddRefed<AccAttributes> NativeAttributes() override;
virtual void AppendTextTo(nsAString& aText, uint32_t aStartOffset = 0,
uint32_t aLength = UINT32_MAX) override;
};
inline HTMLLIAccessible* LocalAccessible::AsHTMLListItem() {
return IsHTMLListItem() ? static_cast<HTMLLIAccessible*>(this) : nullptr;
}
} // namespace a11y
} // namespace mozilla
#endif