forked from mirrors/gecko-dev
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "DocumentStyleRootIterator.h"
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#include "mozilla/dom/Element.h"
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#include "nsContentUtils.h"
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namespace mozilla {
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DocumentStyleRootIterator::DocumentStyleRootIterator(nsINode* aStyleRoot)
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: mPosition(0)
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{
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MOZ_COUNT_CTOR(DocumentStyleRootIterator);
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MOZ_ASSERT(aStyleRoot);
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if (aStyleRoot->IsElement()) {
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mStyleRoots.AppendElement(aStyleRoot->AsElement());
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return;
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}
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nsIDocument* doc = aStyleRoot->OwnerDoc();
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MOZ_ASSERT(doc == aStyleRoot);
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if (Element* root = doc->GetRootElement()) {
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mStyleRoots.AppendElement(root);
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}
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nsContentUtils::AppendDocumentLevelNativeAnonymousContentTo(
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doc, mStyleRoots);
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}
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Element*
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DocumentStyleRootIterator::GetNextStyleRoot()
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{
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for (;;) {
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if (mPosition >= mStyleRoots.Length()) {
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return nullptr;
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}
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nsIContent* next = mStyleRoots[mPosition];
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++mPosition;
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if (next->IsElement()) {
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return next->AsElement();
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}
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}
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}
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} // namespace mozilla
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