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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_uiaRawElmProvider_h__
#define mozilla_a11y_uiaRawElmProvider_h__

#include "objbase.h"
#include "AccessibleWrap.h"
#include "IUnknownImpl.h"
#include "uiautomation.h"

namespace mozilla {
namespace a11y {

class AccessibleWrap;

/**
 * IRawElementProviderSimple implementation (maintains IAccessibleEx approach).
 */
class uiaRawElmProvider final : public IAccessibleEx,
                                public IRawElementProviderSimple
{
public:
  uiaRawElmProvider(AccessibleWrap* aAcc) : mAcc(aAcc) { }

  // IUnknown
  DECL_IUNKNOWN

  // IAccessibleEx
  virtual HRESULT STDMETHODCALLTYPE GetObjectForChild(
    /* [in] */ long aIdChild,
    /* [retval][out] */ __RPC__deref_out_opt IAccessibleEx** aAccEx);

  virtual HRESULT STDMETHODCALLTYPE GetIAccessiblePair(
    /* [out] */ __RPC__deref_out_opt IAccessible** aAcc,
    /* [out] */ __RPC__out long* aIdChild);

  virtual HRESULT STDMETHODCALLTYPE GetRuntimeId(
    /* [retval][out] */ __RPC__deref_out_opt SAFEARRAY** aRuntimeIds);

  virtual HRESULT STDMETHODCALLTYPE ConvertReturnedElement(
    /* [in] */ __RPC__in_opt IRawElementProviderSimple* aRawElmProvider,
    /* [out] */ __RPC__deref_out_opt IAccessibleEx** aAccEx);

  // IRawElementProviderSimple
  virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_ProviderOptions(
    /* [retval][out] */ __RPC__out enum ProviderOptions* aProviderOptions);

  virtual HRESULT STDMETHODCALLTYPE GetPatternProvider(
    /* [in] */ PATTERNID aPatternId,
    /* [retval][out] */ __RPC__deref_out_opt IUnknown** aPatternProvider);

  virtual HRESULT STDMETHODCALLTYPE GetPropertyValue(
    /* [in] */ PROPERTYID aPropertyId,
    /* [retval][out] */ __RPC__out VARIANT* aPropertyValue);

  virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_HostRawElementProvider(
    /* [retval][out] */ __RPC__deref_out_opt IRawElementProviderSimple** aRawElmProvider);

private:
  uiaRawElmProvider() = delete;
  uiaRawElmProvider& operator =(const uiaRawElmProvider&) = delete;
  uiaRawElmProvider(const uiaRawElmProvider&) = delete;

protected:
  RefPtr<AccessibleWrap> mAcc;
};

} // a11y namespace
} // mozilla namespace

#endif