nsINode*
nsFindContentIterator::GetCurrentNode()
{
if (mInnerIterator && !mInnerIterator->IsDone()) {
return mInnerIterator->GetCurrentNode();
}
return mOuterIterator->GetCurrentNode();
}
void
nsFindContentIterator::MaybeSetupInnerIterator()
{
mInnerIterator = nsnull;
nsCOMPtr<nsIContent> content =
do_QueryInterface(mOuterIterator->GetCurrentNode());
if (!content || !content->IsNodeOfType(nsINode::eHTML_FORM_CONTROL))
return;
nsCOMPtr<nsIFormControl> formControl(do_QueryInterface(content));
if (!formControl->IsTextControl(true)) {
return;
}
SetupInnerIterator(content);
if (mInnerIterator) {
if (!mFindBackward) {
mInnerIterator->First();
// finish setup: position mOuterIterator on the actual "next"
// node (this completes its re-init, @see SetupInnerIterator)
if (!mOuterIterator->IsDone())
mOuterIterator->First();
}
else {
mInnerIterator->Last();
// finish setup: position mOuterIterator on the actual "previous"
// node (this completes its re-init, @see SetupInnerIterator)
if (!mOuterIterator->IsDone())
mOuterIterator->Last();
}
}
}
void
nsFindContentIterator::MaybeSetupInnerIterator()
{
mInnerIterator = nsnull;
nsIContent* content = mOuterIterator->GetCurrentNode();
if (!content || !content->IsNodeOfType(nsINode::eHTML_FORM_CONTROL))
return;
nsCOMPtr<nsIFormControl> formControl(do_QueryInterface(content));
PRInt32 controlType = formControl->GetType();
if (controlType != NS_FORM_TEXTAREA &&
controlType != NS_FORM_INPUT_TEXT)
return;
SetupInnerIterator(content);
if (mInnerIterator) {
if (!mFindBackward) {
mInnerIterator->First();
// finish setup: position mOuterIterator on the actual "next"
// node (this completes its re-init, @see SetupInnerIterator)
mOuterIterator->First();
}
else {
mInnerIterator->Last();
// finish setup: position mOuterIterator on the actual "previous"
// node (this completes its re-init, @see SetupInnerIterator)
mOuterIterator->Last();
}
}
}
nsresult
nsFindContentIterator::PositionAt(nsINode* aCurNode)
{
nsINode* oldNode = mOuterIterator->GetCurrentNode();
nsresult rv = mOuterIterator->PositionAt(aCurNode);
if (NS_SUCCEEDED(rv)) {
MaybeSetupInnerIterator();
}
else {
mOuterIterator->PositionAt(oldNode);
if (mInnerIterator)
rv = mInnerIterator->PositionAt(aCurNode);
}
return rv;
}