C++ (Cpp) NextChildInternal Examples

Example #1

File: nsAccTreeWalker.cpp Project: LittleForker/mozilla-central

nsAccessible*
nsAccTreeWalker::NextChildInternal(bool aNoWalkUp)
{
  if (!mState || !mState->content)
    return nsnull;

  if (!mState->childList)
    mState->childList = mState->content->GetChildren(mChildFilter);

  nsCOMPtr<nsIPresShell> presShell(do_QueryReferent(mWeakShell));

  PRUint32 length = 0;
  if (mState->childList)
    mState->childList->GetLength(&length);

  while (mState->childIdx < length) {
    nsIContent* childNode = mState->childList->GetNodeAt(mState->childIdx);
    mState->childIdx++;

    bool isSubtreeHidden = false;
    nsAccessible* accessible =
      GetAccService()->GetOrCreateAccessible(childNode, presShell, mWeakShell,
                                             &isSubtreeHidden);

    if (accessible)
      return accessible;

    // Walk down into subtree to find accessibles.
    if (!isSubtreeHidden) {
      if (!PushState(childNode))
        break;

      accessible = NextChildInternal(true);
      if (accessible)
        return accessible;
    }
  }

  // No more children, get back to the parent.
  PopState();

  return aNoWalkUp ? nsnull : NextChildInternal(false);
}

Example #2

File: nsAccTreeWalker.cpp Project: FunkyVerb/devtools-window

Accessible*
nsAccTreeWalker::NextChildInternal(bool aNoWalkUp)
{
  if (!mState || !mState->content)
    return nullptr;

  if (!mState->childList)
    mState->childList = mState->content->GetChildren(mChildFilter);

  PRUint32 length = 0;
  if (mState->childList)
    mState->childList->GetLength(&length);

  while (mState->childIdx < length) {
    nsIContent* childNode = mState->childList->GetNodeAt(mState->childIdx);
    mState->childIdx++;

    bool isSubtreeHidden = false;
    Accessible* accessible = mWalkCache ? mDoc->GetAccessible(childNode) :
      GetAccService()->GetOrCreateAccessible(childNode, mDoc, &isSubtreeHidden);

    if (accessible)
      return accessible;

    // Walk down into subtree to find accessibles.
    if (!isSubtreeHidden) {
      if (!PushState(childNode))
        break;

      accessible = NextChildInternal(true);
      if (accessible)
        return accessible;
    }
  }

  // No more children, get back to the parent.
  PopState();

  return aNoWalkUp ? nullptr : NextChildInternal(false);
}