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// Copyright 2005 Ben Hutchings <ben@decadent.org.uk>.
// See the file "COPYING" for licence details.
#include "link_iterator.hpp"
#include <cassert>
#include <nsIDOMHTMLCollection.h>
#include <nsIDOMHTMLDocument.h>
link_iterator::link_iterator()
{}
link_iterator::link_iterator(nsIDOMDocument * document)
{
nsCOMPtr<nsIDOMHTMLDocument> htmlDoc(do_QueryInterface(document));
if (!htmlDoc)
return;
htmlDoc->GetLinks(getter_AddRefs(collection_));
assert(collection_);
index_ = 0;
length_ = 0;
collection_->GetLength(&length_);
if (length_ == 0)
collection_ = 0;
}
already_AddRefed<nsIDOMNode> link_iterator::operator*() const
{
assert(collection_);
nsIDOMNode * result = 0;
collection_->Item(index_, &result);
assert(result);
return dont_AddRef(result);
}
link_iterator & link_iterator::operator++()
{
assert(collection_);
++index_;
if (index_ == length_)
collection_ = 0;
return *this;
}
bool link_iterator::operator==(const link_iterator & other) const
{
return (collection_ == other.collection_
&& (!collection_ || index_ == other.index_));
}
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