C++ (Cpp) AccessibleWrap::GetAtkObject示例

// Check if aAtkObj is a valid MaiAtkObject, and return the AccessibleWrap
// for it.
AccessibleWrap*
GetAccessibleWrap(AtkObject* aAtkObj)
{
  NS_ENSURE_TRUE(IS_MAI_OBJECT(aAtkObj), nsnull);
  AccessibleWrap* accWrap = MAI_ATK_OBJECT(aAtkObj)->accWrap;

  // Check if the accessible was deconstructed.
  if (!accWrap)
    return nsnull;

  NS_ENSURE_TRUE(accWrap->GetAtkObject() == aAtkObj, nsnull);

  AccessibleWrap* appAccWrap = nsAccessNode::GetApplicationAccessible();
  if (appAccWrap != accWrap && !accWrap->IsValidObject())
    return nsnull;

  return accWrap;
}

示例#2

显示文件

文件： AccessibleWrap.cpp 项目： AtulKumar2/gecko-dev

// Check if aAtkObj is a valid MaiAtkObject, and return the AccessibleWrap
// for it.
AccessibleWrap*
GetAccessibleWrap(AtkObject* aAtkObj)
{
  NS_ENSURE_TRUE(IS_MAI_OBJECT(aAtkObj), nullptr);

  // Make sure its native is an AccessibleWrap not a proxy.
  if (MAI_ATK_OBJECT(aAtkObj)->accWrap & IS_PROXY)
    return nullptr;

    AccessibleWrap* accWrap =
      reinterpret_cast<AccessibleWrap*>(MAI_ATK_OBJECT(aAtkObj)->accWrap);

  // Check if the accessible was deconstructed.
  if (!accWrap)
    return nullptr;

  NS_ENSURE_TRUE(accWrap->GetAtkObject() == aAtkObj, nullptr);

  AccessibleWrap* appAccWrap = ApplicationAcc();
  if (appAccWrap != accWrap && !accWrap->IsValidObject())
    return nullptr;

  return accWrap;
}