gecko-dev/accessible/generic/ApplicationAccessible.h

100 lines
3.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=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_ApplicationAccessible_h__
#define mozilla_a11y_ApplicationAccessible_h__
#include "AccessibleWrap.h"
#include "nsIAccessibleApplication.h"
#include "nsIMutableArray.h"
#include "nsIXULAppInfo.h"
namespace mozilla {
namespace a11y {
/**
* ApplicationAccessible is for the whole application of Mozilla.
* Only one instance of ApplicationAccessible exists for one Mozilla instance.
* And this one should be created when Mozilla Startup (if accessibility
* feature has been enabled) and destroyed when Mozilla Shutdown.
*
* All the accessibility objects for toplevel windows are direct children of
* the ApplicationAccessible instance.
*/
class ApplicationAccessible : public AccessibleWrap,
public nsIAccessibleApplication
{
public:
ApplicationAccessible();
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
// nsIAccessible
NS_IMETHOD GetRootDocument(nsIAccessibleDocument** aRootDocument);
NS_IMETHOD ScrollTo(uint32_t aScrollType);
NS_IMETHOD ScrollToPoint(uint32_t aCoordinateType, int32_t aX, int32_t aY);
NS_IMETHOD GetLanguage(nsAString& aLanguage);
NS_IMETHOD GetParent(nsIAccessible **aParent);
NS_IMETHOD GetNextSibling(nsIAccessible **aNextSibling);
NS_IMETHOD GetPreviousSibling(nsIAccessible **aPreviousSibling);
NS_IMETHOD GetBounds(int32_t *aX, int32_t *aY,
int32_t *aWidth, int32_t *aHeight);
NS_IMETHOD SetSelected(bool aIsSelected);
NS_IMETHOD TakeSelection();
NS_IMETHOD TakeFocus();
NS_IMETHOD GetActionName(uint8_t aIndex, nsAString &aName);
NS_IMETHOD GetActionDescription(uint8_t aIndex, nsAString &aDescription);
NS_IMETHOD DoAction(uint8_t aIndex);
// nsIAccessibleApplication
NS_DECL_NSIACCESSIBLEAPPLICATION
// Accessible
virtual void Shutdown();
virtual already_AddRefed<nsIPersistentProperties> NativeAttributes() MOZ_OVERRIDE;
virtual GroupPos GroupPosition();
virtual ENameValueFlag Name(nsString& aName);
virtual void ApplyARIAState(uint64_t* aState) const;
virtual void Description(nsString& aDescription);
virtual void Value(nsString& aValue);
virtual mozilla::a11y::role NativeRole();
virtual uint64_t State();
virtual uint64_t NativeState();
virtual Relation RelationByType(RelationType aType) MOZ_OVERRIDE;
virtual Accessible* ChildAtPoint(int32_t aX, int32_t aY,
EWhichChildAtPoint aWhichChild);
virtual Accessible* FocusedChild();
virtual void InvalidateChildren();
// ActionAccessible
virtual uint8_t ActionCount();
virtual KeyBinding AccessKey() const;
protected:
virtual ~ApplicationAccessible() {}
// Accessible
virtual void CacheChildren();
virtual Accessible* GetSiblingAtOffset(int32_t aOffset,
nsresult *aError = nullptr) const;
private:
nsCOMPtr<nsIXULAppInfo> mAppInfo;
};
} // namespace a11y
} // namespace mozilla
#endif