The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/accessible/src/windows/msaa/EnumVariant.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,99 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* vim: set ts=2 et sw=2 tw=80: */
     1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
     1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +#include "EnumVariant.h"
    1.11 +
    1.12 +using namespace mozilla;
    1.13 +using namespace mozilla::a11y;
    1.14 +
    1.15 +////////////////////////////////////////////////////////////////////////////////
    1.16 +// ChildrenEnumVariant
    1.17 +////////////////////////////////////////////////////////////////////////////////
    1.18 +
    1.19 +IMPL_IUNKNOWN_QUERY_HEAD(ChildrenEnumVariant)
    1.20 +IMPL_IUNKNOWN_QUERY_IFACE(IEnumVARIANT);
    1.21 +IMPL_IUNKNOWN_QUERY_IFACE(IUnknown);
    1.22 +IMPL_IUNKNOWN_QUERY_AGGR_COND(mAnchorAcc, !mAnchorAcc->IsDefunct());
    1.23 +IMPL_IUNKNOWN_QUERY_TAIL
    1.24 +
    1.25 +STDMETHODIMP
    1.26 +ChildrenEnumVariant::Next(ULONG aCount, VARIANT FAR* aItems,
    1.27 +                          ULONG FAR* aCountFetched)
    1.28 +{
    1.29 +  A11Y_TRYBLOCK_BEGIN
    1.30 +
    1.31 +  if (!aItems || !aCountFetched)
    1.32 +    return E_INVALIDARG;
    1.33 +
    1.34 +  *aCountFetched = 0;
    1.35 +
    1.36 +  if (mAnchorAcc->IsDefunct() || mAnchorAcc->GetChildAt(mCurIndex) != mCurAcc)
    1.37 +    return CO_E_OBJNOTCONNECTED;
    1.38 +
    1.39 +  ULONG countFetched = 0;
    1.40 +  for (; mCurAcc && countFetched < aCount; countFetched++) {
    1.41 +    VariantInit(aItems + countFetched);
    1.42 +    aItems[countFetched].pdispVal = AccessibleWrap::NativeAccessible(mCurAcc);
    1.43 +    aItems[countFetched].vt = VT_DISPATCH;
    1.44 +
    1.45 +    mCurIndex++;
    1.46 +    mCurAcc = mAnchorAcc->GetChildAt(mCurIndex);
    1.47 +  }
    1.48 +
    1.49 +  (*aCountFetched) = countFetched;
    1.50 +
    1.51 +  return countFetched < aCount ? S_FALSE : S_OK;
    1.52 +
    1.53 +  A11Y_TRYBLOCK_END
    1.54 +}
    1.55 +
    1.56 +STDMETHODIMP
    1.57 +ChildrenEnumVariant::Skip(ULONG aCount)
    1.58 +{
    1.59 +  A11Y_TRYBLOCK_BEGIN
    1.60 +
    1.61 +  if (mAnchorAcc->IsDefunct() || mAnchorAcc->GetChildAt(mCurIndex) != mCurAcc)
    1.62 +    return CO_E_OBJNOTCONNECTED;
    1.63 +
    1.64 +  mCurIndex += aCount;
    1.65 +  mCurAcc = mAnchorAcc->GetChildAt(mCurIndex);
    1.66 +
    1.67 +  return mCurAcc ? S_OK : S_FALSE;
    1.68 +
    1.69 +  A11Y_TRYBLOCK_END
    1.70 +}
    1.71 +
    1.72 +STDMETHODIMP
    1.73 +ChildrenEnumVariant::Reset()
    1.74 +{
    1.75 +  A11Y_TRYBLOCK_BEGIN
    1.76 +
    1.77 +  if (mAnchorAcc->IsDefunct())
    1.78 +    return CO_E_OBJNOTCONNECTED;
    1.79 +
    1.80 +  mCurIndex = 0;
    1.81 +  mCurAcc = mAnchorAcc->GetChildAt(0);
    1.82 +
    1.83 +  return S_OK;
    1.84 +
    1.85 +  A11Y_TRYBLOCK_END
    1.86 +}
    1.87 +
    1.88 +STDMETHODIMP
    1.89 +ChildrenEnumVariant::Clone(IEnumVARIANT** aEnumVariant)
    1.90 +{
    1.91 +  A11Y_TRYBLOCK_BEGIN
    1.92 +
    1.93 +  if (!aEnumVariant)
    1.94 +    return E_INVALIDARG;
    1.95 +
    1.96 +  *aEnumVariant = new ChildrenEnumVariant(*this);
    1.97 +  (*aEnumVariant)->AddRef();
    1.98 +
    1.99 +  return S_OK;
   1.100 +
   1.101 +  A11Y_TRYBLOCK_END
   1.102 +}