blob: d8579b83477acc2b9089c1aa27c9b7d8d7795b65 [file] [log] [blame]
// Copyright 2017 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 <vector>
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxcrt/unowned_ptr.h"
class CPDF_Dictionary;
class CPDF_Object;
class CPDF_StructTree;
class CPDF_StructElement final : public Retainable {
ByteString GetType() const { return m_Type; }
WideString GetAltText() const;
WideString GetTitle() const;
// Never returns nullptr.
const CPDF_Dictionary* GetDict() const { return m_pDict.Get(); }
size_t CountKids() const;
CPDF_StructElement* GetKidIfElement(size_t index) const;
bool UpdateKidIfElement(const CPDF_Dictionary* pDict,
CPDF_StructElement* pElement);
struct Kid {
enum Type { kInvalid, kElement, kPageContent, kStreamContent, kObject };
Kid(const Kid& that);
Type m_Type = kInvalid;
uint32_t m_PageObjNum = 0; // For {PageContent, StreamContent, Object}.
uint32_t m_RefObjNum = 0; // For {StreamContent, Object} types.
uint32_t m_ContentId = 0; // For {PageContent, StreamContent} types.
RetainPtr<CPDF_StructElement> m_pElement; // For Element type.
RetainPtr<const CPDF_Dictionary> m_pDict; // For Element type.
CPDF_StructElement(const CPDF_StructTree* pTree,
const CPDF_StructElement* pParent,
const CPDF_Dictionary* pDict);
~CPDF_StructElement() override;
void LoadKids(const CPDF_Dictionary* pDict);
void LoadKid(uint32_t PageObjNum, const CPDF_Object* pKidObj, Kid* pKid);
UnownedPtr<const CPDF_StructTree> const m_pTree;
UnownedPtr<const CPDF_StructElement> const m_pParent;
RetainPtr<const CPDF_Dictionary> const m_pDict;
const ByteString m_Type;
std::vector<Kid> m_Kids;