Move core/fpdfapi/fpdf_parser to core/fpdfapi/parser

BUG=pdfium:603

Review-Url: https://codereview.chromium.org/2392603004

1 files changed, 275 insertions, 0 deletions

diff --git a/core/fpdfapi/parser/cpdf_dictionary.cpp b/core/fpdfapi/parser/cpdf_dictionary.cpp
new file mode 100644
index 0000000000..7601c5b831
--- /dev/null
+++ b/core/fpdfapi/parser/cpdf_dictionary.cpp
@@ -0,0 +1,275 @@
+// 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. http://www.foxitsoftware.com
+
+#include "core/fpdfapi/parser/cpdf_dictionary.h"
+
+#include <set>
+#include <utility>
+
+#include "core/fpdfapi/parser/cpdf_array.h"
+#include "core/fpdfapi/parser/cpdf_boolean.h"
+#include "core/fpdfapi/parser/cpdf_name.h"
+#include "core/fpdfapi/parser/cpdf_number.h"
+#include "core/fpdfapi/parser/cpdf_reference.h"
+#include "core/fpdfapi/parser/cpdf_stream.h"
+#include "core/fpdfapi/parser/cpdf_string.h"
+#include "third_party/base/logging.h"
+#include "third_party/base/stl_util.h"
+
+CPDF_Dictionary::CPDF_Dictionary()
+    : CPDF_Dictionary(CFX_WeakPtr<CFX_ByteStringPool>()) {}
+
+CPDF_Dictionary::CPDF_Dictionary(const CFX_WeakPtr<CFX_ByteStringPool>& pPool)
+    : m_pPool(pPool) {}
+
+CPDF_Dictionary::~CPDF_Dictionary() {
+  // Mark the object as deleted so that it will not be deleted again
+  // in case of cyclic references.
+  m_ObjNum = kInvalidObjNum;
+  for (const auto& it : m_Map) {
+    if (it.second)
+      it.second->Release();
+  }
+}
+
+CPDF_Object::Type CPDF_Dictionary::GetType() const {
+  return DICTIONARY;
+}
+
+CPDF_Dictionary* CPDF_Dictionary::GetDict() const {
+  // The method should be made non-const if we want to not be const.
+  // See bug #234.
+  return const_cast<CPDF_Dictionary*>(this);
+}
+
+bool CPDF_Dictionary::IsDictionary() const {
+  return true;
+}
+
+CPDF_Dictionary* CPDF_Dictionary::AsDictionary() {
+  return this;
+}
+
+const CPDF_Dictionary* CPDF_Dictionary::AsDictionary() const {
+  return this;
+}
+
+CPDF_Object* CPDF_Dictionary::Clone() const {
+  return CloneObjectNonCyclic(false);
+}
+
+CPDF_Object* CPDF_Dictionary::CloneNonCyclic(
+    bool bDirect,
+    std::set<const CPDF_Object*>* pVisited) const {
+  pVisited->insert(this);
+  CPDF_Dictionary* pCopy = new CPDF_Dictionary(m_pPool);
+  for (const auto& it : *this) {
+    CPDF_Object* value = it.second;
+    if (!pdfium::ContainsKey(*pVisited, value)) {
+      pCopy->m_Map.insert(
+          std::make_pair(it.first, value->CloneNonCyclic(bDirect, pVisited)));
+    }
+  }
+  return pCopy;
+}
+
+CPDF_Object* CPDF_Dictionary::GetObjectFor(const CFX_ByteString& key) const {
+  auto it = m_Map.find(key);
+  return it != m_Map.end() ? it->second : nullptr;
+}
+
+CPDF_Object* CPDF_Dictionary::GetDirectObjectFor(
+    const CFX_ByteString& key) const {
+  CPDF_Object* p = GetObjectFor(key);
+  return p ? p->GetDirect() : nullptr;
+}
+
+CFX_ByteString CPDF_Dictionary::GetStringFor(const CFX_ByteString& key) const {
+  CPDF_Object* p = GetObjectFor(key);
+  return p ? p->GetString() : CFX_ByteString();
+}
+
+CFX_WideString CPDF_Dictionary::GetUnicodeTextFor(
+    const CFX_ByteString& key) const {
+  CPDF_Object* p = GetObjectFor(key);
+  if (CPDF_Reference* pRef = ToReference(p))
+    p = pRef->GetDirect();
+  return p ? p->GetUnicodeText() : CFX_WideString();
+}
+
+CFX_ByteString CPDF_Dictionary::GetStringFor(const CFX_ByteString& key,
+                                             const CFX_ByteString& def) const {
+  CPDF_Object* p = GetObjectFor(key);
+  return p ? p->GetString() : CFX_ByteString(def);
+}
+
+int CPDF_Dictionary::GetIntegerFor(const CFX_ByteString& key) const {
+  CPDF_Object* p = GetObjectFor(key);
+  return p ? p->GetInteger() : 0;
+}
+
+int CPDF_Dictionary::GetIntegerFor(const CFX_ByteString& key, int def) const {
+  CPDF_Object* p = GetObjectFor(key);
+  return p ? p->GetInteger() : def;
+}
+
+FX_FLOAT CPDF_Dictionary::GetNumberFor(const CFX_ByteString& key) const {
+  CPDF_Object* p = GetObjectFor(key);
+  return p ? p->GetNumber() : 0;
+}
+
+bool CPDF_Dictionary::GetBooleanFor(const CFX_ByteString& key,
+                                    bool bDefault) const {
+  CPDF_Object* p = GetObjectFor(key);
+  return ToBoolean(p) ? p->GetInteger() != 0 : bDefault;
+}
+
+CPDF_Dictionary* CPDF_Dictionary::GetDictFor(const CFX_ByteString& key) const {
+  CPDF_Object* p = GetDirectObjectFor(key);
+  if (!p)
+    return nullptr;
+  if (CPDF_Dictionary* pDict = p->AsDictionary())
+    return pDict;
+  if (CPDF_Stream* pStream = p->AsStream())
+    return pStream->GetDict();
+  return nullptr;
+}
+
+CPDF_Array* CPDF_Dictionary::GetArrayFor(const CFX_ByteString& key) const {
+  return ToArray(GetDirectObjectFor(key));
+}
+
+CPDF_Stream* CPDF_Dictionary::GetStreamFor(const CFX_ByteString& key) const {
+  return ToStream(GetDirectObjectFor(key));
+}
+
+CFX_FloatRect CPDF_Dictionary::GetRectFor(const CFX_ByteString& key) const {
+  CFX_FloatRect rect;
+  CPDF_Array* pArray = GetArrayFor(key);
+  if (pArray)
+    rect = pArray->GetRect();
+  return rect;
+}
+
+CFX_Matrix CPDF_Dictionary::GetMatrixFor(const CFX_ByteString& key) const {
+  CFX_Matrix matrix;
+  CPDF_Array* pArray = GetArrayFor(key);
+  if (pArray)
+    matrix = pArray->GetMatrix();
+  return matrix;
+}
+
+FX_BOOL CPDF_Dictionary::KeyExist(const CFX_ByteString& key) const {
+  return pdfium::ContainsKey(m_Map, key);
+}
+
+bool CPDF_Dictionary::IsSignatureDict() const {
+  CPDF_Object* pType = GetDirectObjectFor("Type");
+  if (!pType)
+    pType = GetDirectObjectFor("FT");
+  return pType && pType->GetString() == "Sig";
+}
+
+void CPDF_Dictionary::SetFor(const CFX_ByteString& key, CPDF_Object* pObj) {
+  CHECK(!pObj || pObj->GetObjNum() == 0);
+  auto it = m_Map.find(key);
+  if (it == m_Map.end()) {
+    if (pObj)
+      m_Map.insert(std::make_pair(MaybeIntern(key), pObj));
+    return;
+  }
+
+  if (it->second == pObj)
+    return;
+  it->second->Release();
+
+  if (pObj)
+    it->second = pObj;
+  else
+    m_Map.erase(it);
+}
+
+void CPDF_Dictionary::RemoveFor(const CFX_ByteString& key) {
+  auto it = m_Map.find(key);
+  if (it == m_Map.end())
+    return;
+
+  it->second->Release();
+  m_Map.erase(it);
+}
+
+void CPDF_Dictionary::ReplaceKey(const CFX_ByteString& oldkey,
+                                 const CFX_ByteString& newkey) {
+  auto old_it = m_Map.find(oldkey);
+  if (old_it == m_Map.end())
+    return;
+
+  auto new_it = m_Map.find(newkey);
+  if (new_it == old_it)
+    return;
+
+  if (new_it != m_Map.end()) {
+    new_it->second->Release();
+    new_it->second = old_it->second;
+  } else {
+    m_Map.insert(std::make_pair(MaybeIntern(newkey), old_it->second));
+  }
+  m_Map.erase(old_it);
+}
+
+void CPDF_Dictionary::SetIntegerFor(const CFX_ByteString& key, int i) {
+  SetFor(key, new CPDF_Number(i));
+}
+
+void CPDF_Dictionary::SetNameFor(const CFX_ByteString& key,
+                                 const CFX_ByteString& name) {
+  SetFor(key, new CPDF_Name(MaybeIntern(name)));
+}
+
+void CPDF_Dictionary::SetStringFor(const CFX_ByteString& key,
+                                   const CFX_ByteString& str) {
+  SetFor(key, new CPDF_String(MaybeIntern(str), FALSE));
+}
+
+void CPDF_Dictionary::SetReferenceFor(const CFX_ByteString& key,
+                                      CPDF_IndirectObjectHolder* pDoc,
+                                      uint32_t objnum) {
+  SetFor(key, new CPDF_Reference(pDoc, objnum));
+}
+
+void CPDF_Dictionary::SetNumberFor(const CFX_ByteString& key, FX_FLOAT f) {
+  SetFor(key, new CPDF_Number(f));
+}
+
+void CPDF_Dictionary::SetBooleanFor(const CFX_ByteString& key, bool bValue) {
+  SetFor(key, new CPDF_Boolean(bValue));
+}
+
+void CPDF_Dictionary::SetRectFor(const CFX_ByteString& key,
+                                 const CFX_FloatRect& rect) {
+  CPDF_Array* pArray = new CPDF_Array;
+  pArray->AddNumber(rect.left);
+  pArray->AddNumber(rect.bottom);
+  pArray->AddNumber(rect.right);
+  pArray->AddNumber(rect.top);
+  SetFor(key, pArray);
+}
+
+void CPDF_Dictionary::SetMatrixFor(const CFX_ByteString& key,
+                                   const CFX_Matrix& matrix) {
+  CPDF_Array* pArray = new CPDF_Array;
+  pArray->AddNumber(matrix.a);
+  pArray->AddNumber(matrix.b);
+  pArray->AddNumber(matrix.c);
+  pArray->AddNumber(matrix.d);
+  pArray->AddNumber(matrix.e);
+  pArray->AddNumber(matrix.f);
+  SetFor(key, pArray);
+}
+
+CFX_ByteString CPDF_Dictionary::MaybeIntern(const CFX_ByteString& str) {
+  return m_pPool ? m_pPool->Intern(str) : str;
+}