gecko-dev/accessible/xul/XULSliderAccessible.h

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1.9 KiB
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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_XULSliderAccessible_h__
#define mozilla_a11y_XULSliderAccessible_h__
#include "AccessibleWrap.h"
#include "nsIDOMElement.h"
namespace mozilla {
namespace a11y {
/**
* Used for XUL slider and scale elements.
*/
class XULSliderAccessible : public AccessibleWrap
{
public:
XULSliderAccessible(nsIContent* aContent, DocAccessible* aDoc);
// Accessible
virtual void Value(nsString& aValue) override;
virtual a11y::role NativeRole() override;
virtual uint64_t NativeInteractiveState() const override;
virtual bool NativelyUnavailable() const override;
// Value
virtual double MaxValue() const override;
virtual double MinValue() const override;
virtual double CurValue() const override;
virtual double Step() const override;
virtual bool SetCurValue(double aValue) override;
// ActionAccessible
virtual uint8_t ActionCount() override;
virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override;
virtual bool DoAction(uint8_t aIndex) override;
protected:
/**
* Return anonymous slider element.
*/
dom::Element* GetSliderElement() const;
nsresult GetSliderAttr(nsAtom *aName, nsAString& aValue) const;
nsresult SetSliderAttr(nsAtom *aName, const nsAString& aValue);
double GetSliderAttr(nsAtom *aName) const;
bool SetSliderAttr(nsAtom *aName, double aValue);
private:
mutable RefPtr<dom::Element> mSliderElement;
};
/**
* Used for slider's thumb element.
*/
class XULThumbAccessible : public AccessibleWrap
{
public:
XULThumbAccessible(nsIContent* aContent, DocAccessible* aDoc);
// Accessible
virtual a11y::role NativeRole() override;
};
} // namespace a11y
} // namespace mozilla
#endif