Move core/src/ up to core/.

This CL moves the core/src/ files up to core/ and fixes up the include guards,
includes and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1800523005 .

1 files changed, 510 insertions, 0 deletions

diff --git a/core/fpdfdoc/doc_basic.cpp b/core/fpdfdoc/doc_basic.cpp
new file mode 100644
index 0000000000..b3a6511734
--- /dev/null
+++ b/core/fpdfdoc/doc_basic.cpp
@@ -0,0 +1,510 @@
+// Copyright 2014 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/fpdfdoc/doc_utils.h"
+#include "core/include/fpdfapi/cpdf_array.h"
+#include "core/include/fpdfapi/cpdf_document.h"
+#include "core/include/fpdfdoc/fpdf_doc.h"
+
+const int nMaxRecursion = 32;
+int CPDF_Dest::GetPageIndex(CPDF_Document* pDoc) {
+  CPDF_Array* pArray = ToArray(m_pObj);
+  if (!pArray)
+    return 0;
+
+  CPDF_Object* pPage = pArray->GetElementValue(0);
+  if (!pPage)
+    return 0;
+  if (pPage->IsNumber())
+    return pPage->GetInteger();
+  if (!pPage->IsDictionary())
+    return 0;
+  return pDoc->GetPageIndex(pPage->GetObjNum());
+}
+FX_DWORD CPDF_Dest::GetPageObjNum() {
+  CPDF_Array* pArray = ToArray(m_pObj);
+  if (!pArray)
+    return 0;
+
+  CPDF_Object* pPage = pArray->GetElementValue(0);
+  if (!pPage)
+    return 0;
+  if (pPage->IsNumber())
+    return pPage->GetInteger();
+  if (pPage->IsDictionary())
+    return pPage->GetObjNum();
+  return 0;
+}
+const FX_CHAR* g_sZoomModes[] = {"XYZ",  "Fit",   "FitH",  "FitV", "FitR",
+                                 "FitB", "FitBH", "FitBV", ""};
+int CPDF_Dest::GetZoomMode() {
+  CPDF_Array* pArray = ToArray(m_pObj);
+  if (!pArray)
+    return 0;
+
+  CFX_ByteString mode;
+  CPDF_Object* pObj = pArray->GetElementValue(1);
+  mode = pObj ? pObj->GetString() : CFX_ByteString();
+  int i = 0;
+  while (g_sZoomModes[i][0] != '\0') {
+    if (mode == g_sZoomModes[i]) {
+      return i + 1;
+    }
+    i++;
+  }
+  return 0;
+}
+FX_FLOAT CPDF_Dest::GetParam(int index) {
+  CPDF_Array* pArray = ToArray(m_pObj);
+  return pArray ? pArray->GetNumberAt(2 + index) : 0;
+}
+CFX_ByteString CPDF_Dest::GetRemoteName() {
+  return m_pObj ? m_pObj->GetString() : CFX_ByteString();
+}
+CPDF_NameTree::CPDF_NameTree(CPDF_Document* pDoc,
+                             const CFX_ByteStringC& category) {
+  if (pDoc->GetRoot() && pDoc->GetRoot()->GetDictBy("Names"))
+    m_pRoot = pDoc->GetRoot()->GetDictBy("Names")->GetDictBy(category);
+  else
+    m_pRoot = NULL;
+}
+static CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
+                                   const CFX_ByteString& csName,
+                                   int& nIndex,
+                                   CPDF_Array** ppFind,
+                                   int nLevel = 0) {
+  if (nLevel > nMaxRecursion) {
+    return NULL;
+  }
+  CPDF_Array* pLimits = pNode->GetArrayBy("Limits");
+  if (pLimits) {
+    CFX_ByteString csLeft = pLimits->GetStringAt(0);
+    CFX_ByteString csRight = pLimits->GetStringAt(1);
+    if (csLeft.Compare(csRight) > 0) {
+      CFX_ByteString csTmp = csRight;
+      csRight = csLeft;
+      csLeft = csTmp;
+    }
+    if (csName.Compare(csLeft) < 0 || csName.Compare(csRight) > 0) {
+      return NULL;
+    }
+  }
+  CPDF_Array* pNames = pNode->GetArrayBy("Names");
+  if (pNames) {
+    FX_DWORD dwCount = pNames->GetCount() / 2;
+    for (FX_DWORD i = 0; i < dwCount; i++) {
+      CFX_ByteString csValue = pNames->GetStringAt(i * 2);
+      int32_t iCompare = csValue.Compare(csName);
+      if (iCompare <= 0) {
+        if (ppFind) {
+          *ppFind = pNames;
+        }
+        if (iCompare < 0) {
+          continue;
+        }
+      } else {
+        break;
+      }
+      nIndex += i;
+      return pNames->GetElementValue(i * 2 + 1);
+    }
+    nIndex += dwCount;
+    return NULL;
+  }
+  CPDF_Array* pKids = pNode->GetArrayBy("Kids");
+  if (!pKids) {
+    return NULL;
+  }
+  for (FX_DWORD i = 0; i < pKids->GetCount(); i++) {
+    CPDF_Dictionary* pKid = pKids->GetDictAt(i);
+    if (!pKid) {
+      continue;
+    }
+    CPDF_Object* pFound =
+        SearchNameNode(pKid, csName, nIndex, ppFind, nLevel + 1);
+    if (pFound) {
+      return pFound;
+    }
+  }
+  return NULL;
+}
+static CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
+                                   int nIndex,
+                                   int& nCurIndex,
+                                   CFX_ByteString& csName,
+                                   CPDF_Array** ppFind,
+                                   int nLevel = 0) {
+  if (nLevel > nMaxRecursion) {
+    return NULL;
+  }
+  CPDF_Array* pNames = pNode->GetArrayBy("Names");
+  if (pNames) {
+    int nCount = pNames->GetCount() / 2;
+    if (nIndex >= nCurIndex + nCount) {
+      nCurIndex += nCount;
+      return NULL;
+    }
+    if (ppFind) {
+      *ppFind = pNames;
+    }
+    csName = pNames->GetStringAt((nIndex - nCurIndex) * 2);
+    return pNames->GetElementValue((nIndex - nCurIndex) * 2 + 1);
+  }
+  CPDF_Array* pKids = pNode->GetArrayBy("Kids");
+  if (!pKids) {
+    return NULL;
+  }
+  for (FX_DWORD i = 0; i < pKids->GetCount(); i++) {
+    CPDF_Dictionary* pKid = pKids->GetDictAt(i);
+    if (!pKid) {
+      continue;
+    }
+    CPDF_Object* pFound =
+        SearchNameNode(pKid, nIndex, nCurIndex, csName, ppFind, nLevel + 1);
+    if (pFound) {
+      return pFound;
+    }
+  }
+  return NULL;
+}
+static int CountNames(CPDF_Dictionary* pNode, int nLevel = 0) {
+  if (nLevel > nMaxRecursion) {
+    return 0;
+  }
+  CPDF_Array* pNames = pNode->GetArrayBy("Names");
+  if (pNames) {
+    return pNames->GetCount() / 2;
+  }
+  CPDF_Array* pKids = pNode->GetArrayBy("Kids");
+  if (!pKids) {
+    return 0;
+  }
+  int nCount = 0;
+  for (FX_DWORD i = 0; i < pKids->GetCount(); i++) {
+    CPDF_Dictionary* pKid = pKids->GetDictAt(i);
+    if (!pKid) {
+      continue;
+    }
+    nCount += CountNames(pKid, nLevel + 1);
+  }
+  return nCount;
+}
+int CPDF_NameTree::GetCount() const {
+  if (!m_pRoot) {
+    return 0;
+  }
+  return ::CountNames(m_pRoot);
+}
+int CPDF_NameTree::GetIndex(const CFX_ByteString& csName) const {
+  if (!m_pRoot) {
+    return -1;
+  }
+  int nIndex = 0;
+  if (!SearchNameNode(m_pRoot, csName, nIndex, NULL)) {
+    return -1;
+  }
+  return nIndex;
+}
+CPDF_Object* CPDF_NameTree::LookupValue(int nIndex,
+                                        CFX_ByteString& csName) const {
+  if (!m_pRoot) {
+    return NULL;
+  }
+  int nCurIndex = 0;
+  return SearchNameNode(m_pRoot, nIndex, nCurIndex, csName, NULL);
+}
+CPDF_Object* CPDF_NameTree::LookupValue(const CFX_ByteString& csName) const {
+  if (!m_pRoot) {
+    return NULL;
+  }
+  int nIndex = 0;
+  return SearchNameNode(m_pRoot, csName, nIndex, NULL);
+}
+CPDF_Array* CPDF_NameTree::LookupNamedDest(CPDF_Document* pDoc,
+                                           const CFX_ByteStringC& sName) {
+  CPDF_Object* pValue = LookupValue(sName);
+  if (!pValue) {
+    CPDF_Dictionary* pDests = pDoc->GetRoot()->GetDictBy("Dests");
+    if (!pDests)
+      return nullptr;
+    pValue = pDests->GetElementValue(sName);
+  }
+  if (!pValue)
+    return nullptr;
+  if (CPDF_Array* pArray = pValue->AsArray())
+    return pArray;
+  if (CPDF_Dictionary* pDict = pValue->AsDictionary())
+    return pDict->GetArrayBy("D");
+  return nullptr;
+}
+
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ || \
+    _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
+static CFX_WideString ChangeSlashToPlatform(const FX_WCHAR* str) {
+  CFX_WideString result;
+  while (*str) {
+    if (*str == '/') {
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+      result += ':';
+#else
+      result += '\\';
+#endif
+    } else {
+      result += *str;
+    }
+    str++;
+  }
+  return result;
+}
+
+static CFX_WideString ChangeSlashToPDF(const FX_WCHAR* str) {
+  CFX_WideString result;
+  while (*str) {
+    if (*str == '\\' || *str == ':') {
+      result += '/';
+    } else {
+      result += *str;
+    }
+    str++;
+  }
+  return result;
+}
+#endif  // _FXM_PLATFORM_APPLE_ || _FXM_PLATFORM_WINDOWS_
+
+CFX_WideString CPDF_FileSpec::DecodeFileName(const CFX_WideStringC& filepath) {
+  if (filepath.GetLength() <= 1)
+    return CFX_WideString();
+
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+  if (filepath.Left(sizeof("/Mac") - 1) == CFX_WideStringC(L"/Mac"))
+    return ChangeSlashToPlatform(filepath.GetPtr() + 1);
+  return ChangeSlashToPlatform(filepath.GetPtr());
+#elif _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
+  if (filepath.GetAt(0) != '/')
+    return ChangeSlashToPlatform(filepath.GetPtr());
+  if (filepath.GetAt(1) == '/')
+    return ChangeSlashToPlatform(filepath.GetPtr() + 1);
+  if (filepath.GetAt(2) == '/') {
+    CFX_WideString result;
+    result += filepath.GetAt(1);
+    result += ':';
+    result += ChangeSlashToPlatform(filepath.GetPtr() + 2);
+    return result;
+  }
+  CFX_WideString result;
+  result += '\\';
+  result += ChangeSlashToPlatform(filepath.GetPtr());
+  return result;
+#else
+  return filepath;
+#endif
+}
+
+bool CPDF_FileSpec::GetFileName(CFX_WideString* csFileName) const {
+  if (CPDF_Dictionary* pDict = m_pObj->AsDictionary()) {
+    *csFileName = pDict->GetUnicodeTextBy("UF");
+    if (csFileName->IsEmpty()) {
+      *csFileName = CFX_WideString::FromLocal(pDict->GetStringBy("F"));
+    }
+    if (pDict->GetStringBy("FS") == "URL")
+      return true;
+    if (csFileName->IsEmpty()) {
+      if (pDict->KeyExist("DOS")) {
+        *csFileName = CFX_WideString::FromLocal(pDict->GetStringBy("DOS"));
+      } else if (pDict->KeyExist("Mac")) {
+        *csFileName = CFX_WideString::FromLocal(pDict->GetStringBy("Mac"));
+      } else if (pDict->KeyExist("Unix")) {
+        *csFileName = CFX_WideString::FromLocal(pDict->GetStringBy("Unix"));
+      } else {
+        return false;
+      }
+    }
+  } else if (m_pObj->IsString()) {
+    *csFileName = CFX_WideString::FromLocal(m_pObj->GetString());
+  } else {
+    return false;
+  }
+  *csFileName = DecodeFileName(*csFileName);
+  return true;
+}
+
+CPDF_FileSpec::CPDF_FileSpec() {
+  m_pObj = new CPDF_Dictionary;
+  m_pObj->AsDictionary()->SetAtName("Type", "Filespec");
+}
+
+CFX_WideString CPDF_FileSpec::EncodeFileName(const CFX_WideStringC& filepath) {
+  if (filepath.GetLength() <= 1) {
+    return CFX_WideString();
+  }
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
+  if (filepath.GetAt(1) == ':') {
+    CFX_WideString result;
+    result = '/';
+    result += filepath.GetAt(0);
+    if (filepath.GetAt(2) != '\\') {
+      result += '/';
+    }
+    result += ChangeSlashToPDF(filepath.GetPtr() + 2);
+    return result;
+  }
+  if (filepath.GetAt(0) == '\\' && filepath.GetAt(1) == '\\') {
+    return ChangeSlashToPDF(filepath.GetPtr() + 1);
+  }
+  if (filepath.GetAt(0) == '\\') {
+    CFX_WideString result;
+    result = '/';
+    result += ChangeSlashToPDF(filepath.GetPtr());
+    return result;
+  }
+  return ChangeSlashToPDF(filepath.GetPtr());
+#elif _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+  if (filepath.Left(sizeof("Mac") - 1) == FX_WSTRC(L"Mac")) {
+    CFX_WideString result;
+    result = '/';
+    result += ChangeSlashToPDF(filepath.GetPtr());
+    return result;
+  }
+  return ChangeSlashToPDF(filepath.GetPtr());
+#else
+  return filepath;
+#endif
+}
+
+void CPDF_FileSpec::SetFileName(const CFX_WideStringC& wsFileName) {
+  if (!m_pObj)
+    return;
+
+  CFX_WideString wsStr = EncodeFileName(wsFileName);
+  if (m_pObj->IsString()) {
+    m_pObj->SetString(CFX_ByteString::FromUnicode(wsStr));
+  } else if (CPDF_Dictionary* pDict = m_pObj->AsDictionary()) {
+    pDict->SetAtString("F", CFX_ByteString::FromUnicode(wsStr));
+    pDict->SetAtString("UF", PDF_EncodeText(wsStr));
+  }
+}
+
+static CFX_WideString _MakeRoman(int num) {
+  const int arabic[] = {1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1};
+  const CFX_WideString roman[] = {L"m",  L"cm", L"d",  L"cd", L"c",
+                                  L"xc", L"l",  L"xl", L"x",  L"ix",
+                                  L"v",  L"iv", L"i"};
+  const int nMaxNum = 1000000;
+  num %= nMaxNum;
+  int i = 0;
+  CFX_WideString wsRomanNumber;
+  while (num > 0) {
+    while (num >= arabic[i]) {
+      num = num - arabic[i];
+      wsRomanNumber += roman[i];
+    }
+    i = i + 1;
+  }
+  return wsRomanNumber;
+}
+
+static CFX_WideString _MakeLetters(int num) {
+  if (num == 0) {
+    return CFX_WideString();
+  }
+  CFX_WideString wsLetters;
+  const int nMaxCount = 1000;
+  const int nLetterCount = 26;
+  num -= 1;
+  int count = num / nLetterCount + 1;
+  count %= nMaxCount;
+  FX_WCHAR ch = L'a' + num % nLetterCount;
+  for (int i = 0; i < count; i++) {
+    wsLetters += ch;
+  }
+  return wsLetters;
+}
+static CFX_WideString _GetLabelNumPortion(int num,
+                                          const CFX_ByteString& bsStyle) {
+  CFX_WideString wsNumPortion;
+  if (bsStyle.IsEmpty()) {
+    return wsNumPortion;
+  }
+  if (bsStyle == "D") {
+    wsNumPortion.Format(L"%d", num);
+  } else if (bsStyle == "R") {
+    wsNumPortion = _MakeRoman(num);
+    wsNumPortion.MakeUpper();
+  } else if (bsStyle == "r") {
+    wsNumPortion = _MakeRoman(num);
+  } else if (bsStyle == "A") {
+    wsNumPortion = _MakeLetters(num);
+    wsNumPortion.MakeUpper();
+  } else if (bsStyle == "a") {
+    wsNumPortion = _MakeLetters(num);
+  }
+  return wsNumPortion;
+}
+CFX_WideString CPDF_PageLabel::GetLabel(int nPage) const {
+  CFX_WideString wsLabel;
+  if (!m_pDocument) {
+    return wsLabel;
+  }
+  CPDF_Dictionary* pPDFRoot = m_pDocument->GetRoot();
+  if (!pPDFRoot) {
+    return wsLabel;
+  }
+  CPDF_Dictionary* pLabels = pPDFRoot->GetDictBy("PageLabels");
+  CPDF_NumberTree numberTree(pLabels);
+  CPDF_Object* pValue = NULL;
+  int n = nPage;
+  while (n >= 0) {
+    pValue = numberTree.LookupValue(n);
+    if (pValue) {
+      break;
+    }
+    n--;
+  }
+  if (pValue) {
+    pValue = pValue->GetDirect();
+    if (CPDF_Dictionary* pLabel = pValue->AsDictionary()) {
+      if (pLabel->KeyExist("P")) {
+        wsLabel += pLabel->GetUnicodeTextBy("P");
+      }
+      CFX_ByteString bsNumberingStyle = pLabel->GetStringBy("S", NULL);
+      int nLabelNum = nPage - n + pLabel->GetIntegerBy("St", 1);
+      CFX_WideString wsNumPortion =
+          _GetLabelNumPortion(nLabelNum, bsNumberingStyle);
+      wsLabel += wsNumPortion;
+      return wsLabel;
+    }
+  }
+  wsLabel.Format(L"%d", nPage + 1);
+  return wsLabel;
+}
+int32_t CPDF_PageLabel::GetPageByLabel(const CFX_ByteStringC& bsLabel) const {
+  if (!m_pDocument) {
+    return -1;
+  }
+  CPDF_Dictionary* pPDFRoot = m_pDocument->GetRoot();
+  if (!pPDFRoot) {
+    return -1;
+  }
+  int nPages = m_pDocument->GetPageCount();
+  CFX_ByteString bsLbl;
+  CFX_ByteString bsOrig = bsLabel;
+  for (int i = 0; i < nPages; i++) {
+    bsLbl = PDF_EncodeText(GetLabel(i));
+    if (!bsLbl.Compare(bsOrig)) {
+      return i;
+    }
+  }
+  bsLbl = bsOrig;
+  int nPage = FXSYS_atoi(bsLbl);
+  if (nPage > 0 && nPage <= nPages) {
+    return nPage;
+  }
+  return -1;
+}
+int32_t CPDF_PageLabel::GetPageByLabel(const CFX_WideStringC& wsLabel) const {
+  CFX_ByteString bsLabel = PDF_EncodeText(wsLabel.GetPtr());
+  return GetPageByLabel(bsLabel);
+}