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/* -*- 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 */
#ifndef mozilla_a11y_AccessibleWrap_h_
#define mozilla_a11y_AccessibleWrap_h_
#include "nsCOMPtr.h"
#include "LocalAccessible.h"
#include "MsaaAccessible.h"
#include "mozilla/a11y/AccessibleHandler.h"
#include "mozilla/a11y/RemoteAccessible.h"
#include "mozilla/Attributes.h"
#include "mozilla/mscom/Utils.h"
#include "mozilla/StaticPtr.h"
#include "nsXULAppAPI.h"
#include "Units.h"
namespace mozilla {
namespace a11y {
class DocRemoteAccessibleWrap;
class AccessibleWrap : public LocalAccessible {
public: // construction, destruction
AccessibleWrap(nsIContent* aContent, DocAccessible* aDoc);
// nsISupports
// LocalAccessible
virtual nsresult HandleAccEvent(AccEvent* aEvent) override;
virtual void Shutdown() override;
// Helper methods
* System caret support: update the Windows caret position.
* The system caret works more universally than the MSAA caret
* For example, Window-Eyes, JAWS, ZoomText and Windows Tablet Edition use it
* We will use an invisible system caret.
* Gecko is still responsible for drawing its own caret
void UpdateSystemCaretFor(LocalAccessible* aAccessible);
static void UpdateSystemCaretFor(RemoteAccessible* aProxy,
const LayoutDeviceIntRect& aCaretRect);
static void UpdateSystemCaretFor(HWND aCaretWnd,
const LayoutDeviceIntRect& aCaretRect);
* Determine whether this is the root accessible for its HWND.
bool IsRootForHWND();
MsaaAccessible* GetMsaa();
virtual void GetNativeInterface(void** aOutAccessible) override;
static void SetHandlerControl(DWORD aPid, RefPtr<IHandlerControl> aCtrl);
static void InvalidateHandlers();
static bool DispatchTextChangeToHandler(Accessible* aAcc, bool aIsInsert,
const nsString& aText, int32_t aStart,
uint32_t aLen);
virtual ~AccessibleWrap() = default;
RefPtr<MsaaAccessible> mMsaa;
struct HandlerControllerData final {
HandlerControllerData(DWORD aPid, RefPtr<IHandlerControl>&& aCtrl)
: mPid(aPid), mCtrl(std::move(aCtrl)) {
mIsProxy = mozilla::mscom::IsProxy(mCtrl);
HandlerControllerData(HandlerControllerData&& aOther)
: mPid(aOther.mPid),
mCtrl(std::move(aOther.mCtrl)) {}
bool operator==(const HandlerControllerData& aOther) const {
return mPid == aOther.mPid;
bool operator==(const DWORD& aPid) const { return mPid == aPid; }
bool mIsProxy;
RefPtr<IHandlerControl> mCtrl;
static StaticAutoPtr<nsTArray<HandlerControllerData>> sHandlerControllers;
} // namespace a11y
} // namespace mozilla