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// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc.
#include "core/fpdfdoc/cpdf_bookmarktree.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_document.h"
CPDF_BookmarkTree::CPDF_BookmarkTree(CPDF_Document* pDoc) : m_pDocument(pDoc) {}
CPDF_BookmarkTree::~CPDF_BookmarkTree() = default;
CPDF_Bookmark CPDF_BookmarkTree::GetFirstChild(
const CPDF_Bookmark& parent) const {
const CPDF_Dictionary* pParentDict = parent.GetDict();
if (pParentDict)
return CPDF_Bookmark(pParentDict->GetDictFor("First"));
const CPDF_Dictionary* pRoot = m_pDocument->GetRoot();
if (!pRoot)
return CPDF_Bookmark();
const CPDF_Dictionary* pOutlines = pRoot->GetDictFor("Outlines");
return pOutlines ? CPDF_Bookmark(pOutlines->GetDictFor("First"))
: CPDF_Bookmark();
CPDF_Bookmark CPDF_BookmarkTree::GetNextSibling(
const CPDF_Bookmark& bookmark) const {
const CPDF_Dictionary* pDict = bookmark.GetDict();
if (!pDict)
return CPDF_Bookmark();
const CPDF_Dictionary* pNext = pDict->GetDictFor("Next");
return pNext == pDict ? CPDF_Bookmark() : CPDF_Bookmark(pNext);