Source code

Revision control

Copy as Markdown

Other Tools

/* -*- 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 */
#ifndef mozilla_a11y_ApplicationAccessible_h__
#define mozilla_a11y_ApplicationAccessible_h__
#include "AccessibleWrap.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 {
NS_INLINE_DECL_REFCOUNTING_INHERITED(ApplicationAccessible, AccessibleWrap)
// LocalAccessible
virtual void Shutdown() override;
virtual LayoutDeviceIntRect Bounds() const override;
virtual nsRect BoundsInAppUnits() const override;
virtual already_AddRefed<AccAttributes> NativeAttributes() override;
virtual GroupPos GroupPosition() override;
virtual ENameValueFlag Name(nsString& aName) const override;
virtual void ApplyARIAState(uint64_t* aState) const override;
virtual void Description(nsString& aDescription) const override;
virtual void Value(nsString& aValue) const override;
virtual mozilla::a11y::role NativeRole() const override;
virtual uint64_t State() override;
virtual uint64_t NativeState() const override;
virtual Relation RelationByType(RelationType aType) const override;
virtual LocalAccessible* LocalChildAtPoint(
int32_t aX, int32_t aY, EWhichChildAtPoint aWhichChild) override;
virtual Accessible* FocusedChild() override;
// ActionAccessible
virtual KeyBinding AccessKey() const override;
// ApplicationAccessible
void Init();
void AppName(nsAString& aName) const {
MOZ_ASSERT(mAppInfo, "no application info");
if (mAppInfo) {
nsAutoCString cname;
AppendUTF8toUTF16(cname, aName);
void AppVersion(nsAString& aVersion) const {
MOZ_ASSERT(mAppInfo, "no application info");
if (mAppInfo) {
nsAutoCString cversion;
AppendUTF8toUTF16(cversion, aVersion);
void PlatformName(nsAString& aName) const { aName.AssignLiteral("Gecko"); }
void PlatformVersion(nsAString& aVersion) const {
MOZ_ASSERT(mAppInfo, "no application info");
if (mAppInfo) {
nsAutoCString cversion;
AppendUTF8toUTF16(cversion, aVersion);
virtual ~ApplicationAccessible() {}
// LocalAccessible
virtual LocalAccessible* GetSiblingAtOffset(
int32_t aOffset, nsresult* aError = nullptr) const override;
nsCOMPtr<nsIXULAppInfo> mAppInfo;
inline ApplicationAccessible* LocalAccessible::AsApplication() {
return IsApplication() ? static_cast<ApplicationAccessible*>(this) : nullptr;
} // namespace a11y
} // namespace mozilla