Cleanup the xfa/src/fdp directory.

This CL renames xfa/src/fdp to xfa/src/fde to better match all of the content
(nothing mentions fdp other then the directory name). The inner src/ and
include/ folders are collapsed up a level and xfa/src/fdp/src/fde is moved
up to xfa/src/fde.

Some of the header moves conflicted with existing headers. In that case, the
existing header had the content moved into the .cpp file and we replaced the
existing header with the one from include/.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1784543002 .

1 files changed, 487 insertions, 0 deletions

diff --git a/xfa/src/fde/css/fde_csssyntax.cpp b/xfa/src/fde/css/fde_csssyntax.cpp
new file mode 100644
index 0000000000..5fe502e8b9
--- /dev/null
+++ b/xfa/src/fde/css/fde_csssyntax.cpp
@@ -0,0 +1,487 @@
+// 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 "xfa/src/fde/css/fde_csssyntax.h"
+
+#include "xfa/src/fde/css/fde_cssdatatable.h"
+#include "xfa/src/fgas/crt/fgas_codepage.h"
+
+#ifdef _cplusplus
+extern "C" {
+#endif
+
+inline FX_BOOL FDE_IsSelectorStart(FX_WCHAR wch) {
+  return wch == '.' || wch == '#' || wch == '*' || (wch >= 'a' && wch <= 'z') ||
+         (wch >= 'A' && wch <= 'Z');
+}
+
+#ifdef _cplusplus
+};
+#endif
+
+IFDE_CSSSyntaxParser* IFDE_CSSSyntaxParser::Create() {
+  return new CFDE_CSSSyntaxParser;
+}
+CFDE_CSSSyntaxParser::CFDE_CSSSyntaxParser()
+    : m_pStream(NULL),
+      m_iStreamPos(0),
+      m_iPlaneSize(0),
+      m_iTextDatLen(0),
+      m_dwCheck((FX_DWORD)-1),
+      m_eMode(FDE_CSSSYNTAXMODE_RuleSet),
+      m_eStatus(FDE_CSSSYNTAXSTATUS_None) {}
+CFDE_CSSSyntaxParser::~CFDE_CSSSyntaxParser() {
+  m_TextData.Reset();
+  m_TextPlane.Reset();
+}
+FX_BOOL CFDE_CSSSyntaxParser::Init(IFX_Stream* pStream,
+                                   int32_t iCSSPlaneSize,
+                                   int32_t iTextDataSize,
+                                   FX_BOOL bOnlyDeclaration) {
+  FXSYS_assert(pStream != NULL && iCSSPlaneSize > 0 && iTextDataSize > 0);
+  Reset(bOnlyDeclaration);
+  if (!m_TextData.EstimateSize(iTextDataSize)) {
+    return FALSE;
+  }
+  uint8_t bom[4];
+  m_pStream = pStream;
+  m_iStreamPos = m_pStream->GetBOM(bom);
+  m_iPlaneSize = iCSSPlaneSize;
+  return TRUE;
+}
+FX_BOOL CFDE_CSSSyntaxParser::Init(const FX_WCHAR* pBuffer,
+                                   int32_t iBufferSize,
+                                   int32_t iTextDatSize,
+                                   FX_BOOL bOnlyDeclaration) {
+  FXSYS_assert(pBuffer != NULL && iBufferSize > 0 && iTextDatSize > 0);
+  Reset(bOnlyDeclaration);
+  if (!m_TextData.EstimateSize(iTextDatSize)) {
+    return FALSE;
+  }
+  return m_TextPlane.AttachBuffer(pBuffer, iBufferSize);
+}
+void CFDE_CSSSyntaxParser::Reset(FX_BOOL bOnlyDeclaration) {
+  m_TextPlane.Reset();
+  m_TextData.Reset();
+  m_pStream = NULL;
+  m_iStreamPos = 0;
+  m_iTextDatLen = 0;
+  m_dwCheck = (FX_DWORD)-1;
+  m_eStatus = FDE_CSSSYNTAXSTATUS_None;
+  m_eMode = bOnlyDeclaration ? FDE_CSSSYNTAXMODE_PropertyName
+                             : FDE_CSSSYNTAXMODE_RuleSet;
+}
+FDE_CSSSYNTAXSTATUS CFDE_CSSSyntaxParser::DoSyntaxParse() {
+  while (m_eStatus >= FDE_CSSSYNTAXSTATUS_None) {
+    if (m_TextPlane.IsEOF()) {
+      if (m_pStream == NULL) {
+        if (m_eMode == FDE_CSSSYNTAXMODE_PropertyValue &&
+            m_TextData.GetLength() > 0) {
+          SaveTextData();
+          return m_eStatus = FDE_CSSSYNTAXSTATUS_PropertyValue;
+        }
+        return m_eStatus = FDE_CSSSYNTAXSTATUS_EOS;
+      }
+      FX_BOOL bEOS;
+      int32_t iLen = m_TextPlane.LoadFromStream(m_pStream, m_iStreamPos,
+                                                m_iPlaneSize, bEOS);
+      m_iStreamPos = m_pStream->GetPosition();
+      if (iLen < 1) {
+        if (m_eMode == FDE_CSSSYNTAXMODE_PropertyValue &&
+            m_TextData.GetLength() > 0) {
+          SaveTextData();
+          return m_eStatus = FDE_CSSSYNTAXSTATUS_PropertyValue;
+        }
+        return m_eStatus = FDE_CSSSYNTAXSTATUS_EOS;
+      }
+    }
+    FX_WCHAR wch;
+    while (!m_TextPlane.IsEOF()) {
+      wch = m_TextPlane.GetChar();
+      switch (m_eMode) {
+        case FDE_CSSSYNTAXMODE_RuleSet:
+          switch (wch) {
+            case '@':
+              m_TextPlane.MoveNext();
+              SwitchMode(FDE_CSSSYNTAXMODE_AtRule);
+              break;
+            case '}':
+              m_TextPlane.MoveNext();
+              if (RestoreMode()) {
+                return FDE_CSSSYNTAXSTATUS_DeclClose;
+              } else {
+                return m_eStatus = FDE_CSSSYNTAXSTATUS_Error;
+              }
+              break;
+            case '/':
+              if (m_TextPlane.GetNextChar() == '*') {
+                m_ModeStack.Push(m_eMode);
+                SwitchMode(FDE_CSSSYNTAXMODE_Comment);
+                break;
+              }
+            default:
+              if (wch <= ' ') {
+                m_TextPlane.MoveNext();
+              } else if (FDE_IsSelectorStart(wch)) {
+                SwitchMode(FDE_CSSSYNTAXMODE_Selector);
+                return FDE_CSSSYNTAXSTATUS_StyleRule;
+              } else {
+                return m_eStatus = FDE_CSSSYNTAXSTATUS_Error;
+              }
+              break;
+          }
+          break;
+        case FDE_CSSSYNTAXMODE_Selector:
+          switch (wch) {
+            case ',':
+              m_TextPlane.MoveNext();
+              SwitchMode(FDE_CSSSYNTAXMODE_Selector);
+              if (m_iTextDatLen > 0) {
+                return FDE_CSSSYNTAXSTATUS_Selector;
+              }
+              break;
+            case '{':
+              if (m_TextData.GetLength() > 0) {
+                SaveTextData();
+                return FDE_CSSSYNTAXSTATUS_Selector;
+              } else {
+                m_TextPlane.MoveNext();
+                m_ModeStack.Push(FDE_CSSSYNTAXMODE_RuleSet);
+                SwitchMode(FDE_CSSSYNTAXMODE_PropertyName);
+                return FDE_CSSSYNTAXSTATUS_DeclOpen;
+              }
+              break;
+            case '/':
+              if (m_TextPlane.GetNextChar() == '*') {
+                if (SwitchToComment() > 0) {
+                  return FDE_CSSSYNTAXSTATUS_Selector;
+                }
+                break;
+              }
+            default:
+              AppendChar(wch);
+              break;
+          }
+          break;
+        case FDE_CSSSYNTAXMODE_PropertyName:
+          switch (wch) {
+            case ':':
+              m_TextPlane.MoveNext();
+              SwitchMode(FDE_CSSSYNTAXMODE_PropertyValue);
+              return FDE_CSSSYNTAXSTATUS_PropertyName;
+            case '}':
+              m_TextPlane.MoveNext();
+              if (RestoreMode()) {
+                return FDE_CSSSYNTAXSTATUS_DeclClose;
+              } else {
+                return m_eStatus = FDE_CSSSYNTAXSTATUS_Error;
+              }
+              break;
+            case '/':
+              if (m_TextPlane.GetNextChar() == '*') {
+                if (SwitchToComment() > 0) {
+                  return FDE_CSSSYNTAXSTATUS_PropertyName;
+                }
+                break;
+              }
+            default:
+              AppendChar(wch);
+              break;
+          }
+          break;
+        case FDE_CSSSYNTAXMODE_PropertyValue:
+          switch (wch) {
+            case ';':
+              m_TextPlane.MoveNext();
+            case '}':
+              SwitchMode(FDE_CSSSYNTAXMODE_PropertyName);
+              return FDE_CSSSYNTAXSTATUS_PropertyValue;
+            case '/':
+              if (m_TextPlane.GetNextChar() == '*') {
+                if (SwitchToComment() > 0) {
+                  return FDE_CSSSYNTAXSTATUS_PropertyValue;
+                }
+                break;
+              }
+            default:
+              AppendChar(wch);
+              break;
+          }
+          break;
+        case FDE_CSSSYNTAXMODE_Comment:
+          if (wch == '/' && m_TextData.GetLength() > 0 &&
+              m_TextData.GetAt(m_TextData.GetLength() - 1) == '*') {
+            RestoreMode();
+          } else {
+            m_TextData.AppendChar(wch);
+          }
+          m_TextPlane.MoveNext();
+          break;
+        case FDE_CSSSYNTAXMODE_MediaType:
+          switch (wch) {
+            case ',':
+              m_TextPlane.MoveNext();
+              SwitchMode(FDE_CSSSYNTAXMODE_MediaType);
+              if (m_iTextDatLen > 0) {
+                return FDE_CSSSYNTAXSTATUS_MediaType;
+              }
+              break;
+            case '{': {
+              FDE_CSSSYNTAXMODE* pMode = m_ModeStack.GetTopElement();
+              if (pMode == NULL || *pMode != FDE_CSSSYNTAXMODE_MediaRule) {
+                return m_eStatus = FDE_CSSSYNTAXSTATUS_Error;
+              }
+              if (m_TextData.GetLength() > 0) {
+                SaveTextData();
+                return FDE_CSSSYNTAXSTATUS_MediaType;
+              } else {
+                m_TextPlane.MoveNext();
+                *pMode = FDE_CSSSYNTAXMODE_RuleSet;
+                SwitchMode(FDE_CSSSYNTAXMODE_RuleSet);
+                return FDE_CSSSYNTAXSTATUS_DeclOpen;
+              }
+            } break;
+            case ';': {
+              FDE_CSSSYNTAXMODE* pMode = m_ModeStack.GetTopElement();
+              if (pMode == NULL || *pMode != FDE_CSSSYNTAXMODE_Import) {
+                return m_eStatus = FDE_CSSSYNTAXSTATUS_Error;
+              }
+              if (m_TextData.GetLength() > 0) {
+                SaveTextData();
+                if (IsImportEnabled()) {
+                  return FDE_CSSSYNTAXSTATUS_MediaType;
+                }
+              } else {
+                FX_BOOL bEnabled = IsImportEnabled();
+                m_TextPlane.MoveNext();
+                m_ModeStack.Pop();
+                SwitchMode(FDE_CSSSYNTAXMODE_RuleSet);
+                if (bEnabled) {
+                  DisableImport();
+                  return FDE_CSSSYNTAXSTATUS_ImportClose;
+                }
+              }
+            } break;
+            case '/':
+              if (m_TextPlane.GetNextChar() == '*') {
+                if (SwitchToComment() > 0) {
+                  return FDE_CSSSYNTAXSTATUS_MediaType;
+                }
+                break;
+              }
+            default:
+              AppendChar(wch);
+              break;
+          }
+          break;
+        case FDE_CSSSYNTAXMODE_URI: {
+          FDE_CSSSYNTAXMODE* pMode = m_ModeStack.GetTopElement();
+          if (pMode == NULL || *pMode != FDE_CSSSYNTAXMODE_Import) {
+            return m_eStatus = FDE_CSSSYNTAXSTATUS_Error;
+          }
+          if (wch <= ' ' || wch == ';') {
+            int32_t iURIStart, iURILength = m_TextData.GetLength();
+            if (iURILength > 0 &&
+                FDE_ParseCSSURI(m_TextData.GetBuffer(), iURILength, iURIStart,
+                                iURILength)) {
+              m_TextData.Subtract(iURIStart, iURILength);
+              SwitchMode(FDE_CSSSYNTAXMODE_MediaType);
+              if (IsImportEnabled()) {
+                return FDE_CSSSYNTAXSTATUS_URI;
+              } else {
+                break;
+              }
+            }
+          }
+          AppendChar(wch);
+        } break;
+        case FDE_CSSSYNTAXMODE_AtRule:
+          if (wch > ' ') {
+            AppendChar(wch);
+          } else {
+            int32_t iLen = m_TextData.GetLength();
+            const FX_WCHAR* psz = m_TextData.GetBuffer();
+            if (FXSYS_wcsncmp(L"charset", psz, iLen) == 0) {
+              SwitchMode(FDE_CSSSYNTAXMODE_Charset);
+            } else if (FXSYS_wcsncmp(L"import", psz, iLen) == 0) {
+              m_ModeStack.Push(FDE_CSSSYNTAXMODE_Import);
+              SwitchMode(FDE_CSSSYNTAXMODE_URI);
+              if (IsImportEnabled()) {
+                return FDE_CSSSYNTAXSTATUS_ImportRule;
+              } else {
+                break;
+              }
+            } else if (FXSYS_wcsncmp(L"media", psz, iLen) == 0) {
+              m_ModeStack.Push(FDE_CSSSYNTAXMODE_MediaRule);
+              SwitchMode(FDE_CSSSYNTAXMODE_MediaType);
+              return FDE_CSSSYNTAXSTATUS_MediaRule;
+            } else if (FXSYS_wcsncmp(L"font-face", psz, iLen) == 0) {
+              SwitchMode(FDE_CSSSYNTAXMODE_Selector);
+              return FDE_CSSSYNTAXSTATUS_FontFaceRule;
+            } else if (FXSYS_wcsncmp(L"page", psz, iLen) == 0) {
+              SwitchMode(FDE_CSSSYNTAXMODE_Selector);
+              return FDE_CSSSYNTAXSTATUS_PageRule;
+            } else {
+              SwitchMode(FDE_CSSSYNTAXMODE_UnknownRule);
+            }
+          }
+          break;
+        case FDE_CSSSYNTAXMODE_Charset:
+          if (wch == ';') {
+            m_TextPlane.MoveNext();
+            SwitchMode(FDE_CSSSYNTAXMODE_RuleSet);
+            if (IsCharsetEnabled()) {
+              DisableCharset();
+              if (m_iTextDatLen > 0) {
+                if (m_pStream != NULL) {
+                  FX_WORD wCodePage = FX_GetCodePageFormStringW(
+                      m_TextData.GetBuffer(), m_iTextDatLen);
+                  if (wCodePage < 0xFFFF &&
+                      m_pStream->GetCodePage() != wCodePage) {
+                    m_pStream->SetCodePage(wCodePage);
+                  }
+                }
+                return FDE_CSSSYNTAXSTATUS_Charset;
+              }
+            }
+          } else {
+            AppendChar(wch);
+          }
+          break;
+        case FDE_CSSSYNTAXMODE_UnknownRule:
+          if (wch == ';') {
+            SwitchMode(FDE_CSSSYNTAXMODE_RuleSet);
+          }
+          m_TextPlane.MoveNext();
+          break;
+        default:
+          FXSYS_assert(FALSE);
+          break;
+      }
+    }
+  }
+  return m_eStatus;
+}
+FX_BOOL CFDE_CSSSyntaxParser::IsImportEnabled() const {
+  if ((m_dwCheck & FDE_CSSSYNTAXCHECK_AllowImport) == 0) {
+    return FALSE;
+  }
+  if (m_ModeStack.GetSize() > 1) {
+    return FALSE;
+  }
+  return TRUE;
+}
+inline FX_BOOL CFDE_CSSSyntaxParser::AppendChar(FX_WCHAR wch) {
+  m_TextPlane.MoveNext();
+  if (m_TextData.GetLength() > 0 || wch > ' ') {
+    m_TextData.AppendChar(wch);
+    return TRUE;
+  }
+  return FALSE;
+}
+inline int32_t CFDE_CSSSyntaxParser::SaveTextData() {
+  m_iTextDatLen = m_TextData.TrimEnd();
+  m_TextData.Clear();
+  return m_iTextDatLen;
+}
+inline void CFDE_CSSSyntaxParser::SwitchMode(FDE_CSSSYNTAXMODE eMode) {
+  m_eMode = eMode;
+  SaveTextData();
+}
+inline int32_t CFDE_CSSSyntaxParser::SwitchToComment() {
+  int32_t iLength = m_TextData.GetLength();
+  m_ModeStack.Push(m_eMode);
+  SwitchMode(FDE_CSSSYNTAXMODE_Comment);
+  return iLength;
+}
+inline FX_BOOL CFDE_CSSSyntaxParser::RestoreMode() {
+  FDE_CSSSYNTAXMODE* pMode = m_ModeStack.GetTopElement();
+  if (pMode == NULL) {
+    return FALSE;
+  }
+  SwitchMode(*pMode);
+  m_ModeStack.Pop();
+  return TRUE;
+}
+const FX_WCHAR* CFDE_CSSSyntaxParser::GetCurrentString(int32_t& iLength) const {
+  iLength = m_iTextDatLen;
+  return m_TextData.GetBuffer();
+}
+CFDE_CSSTextBuf::CFDE_CSSTextBuf()
+    : m_bExtBuf(FALSE),
+      m_pBuffer(NULL),
+      m_iBufLen(0),
+      m_iDatLen(0),
+      m_iDatPos(0) {}
+CFDE_CSSTextBuf::~CFDE_CSSTextBuf() {
+  Reset();
+}
+void CFDE_CSSTextBuf::Reset() {
+  if (!m_bExtBuf) {
+    FX_Free(m_pBuffer);
+    m_pBuffer = NULL;
+  }
+  m_iDatPos = m_iDatLen = m_iBufLen;
+}
+FX_BOOL CFDE_CSSTextBuf::AttachBuffer(const FX_WCHAR* pBuffer,
+                                      int32_t iBufLen) {
+  Reset();
+  m_pBuffer = (FX_WCHAR*)pBuffer;
+  m_iDatLen = m_iBufLen = iBufLen;
+  return m_bExtBuf = TRUE;
+}
+FX_BOOL CFDE_CSSTextBuf::EstimateSize(int32_t iAllocSize) {
+  FXSYS_assert(iAllocSize > 0);
+  Clear();
+  m_bExtBuf = FALSE;
+  return ExpandBuf(iAllocSize);
+}
+int32_t CFDE_CSSTextBuf::LoadFromStream(IFX_Stream* pTxtStream,
+                                        int32_t iStreamOffset,
+                                        int32_t iMaxChars,
+                                        FX_BOOL& bEOS) {
+  FXSYS_assert(iStreamOffset >= 0 && iMaxChars > 0);
+  Clear();
+  m_bExtBuf = FALSE;
+  if (!ExpandBuf(iMaxChars)) {
+    return 0;
+  }
+  if (pTxtStream->GetPosition() != iStreamOffset) {
+    pTxtStream->Seek(FX_STREAMSEEK_Begin, iStreamOffset);
+  }
+  m_iDatLen = pTxtStream->ReadString(m_pBuffer, iMaxChars, bEOS);
+  return m_iDatLen;
+}
+FX_BOOL CFDE_CSSTextBuf::ExpandBuf(int32_t iDesiredSize) {
+  if (m_bExtBuf) {
+    return FALSE;
+  }
+  if (!m_pBuffer) {
+    m_pBuffer = FX_Alloc(FX_WCHAR, iDesiredSize);
+  } else if (m_iBufLen != iDesiredSize) {
+    m_pBuffer = FX_Realloc(FX_WCHAR, m_pBuffer, iDesiredSize);
+  } else {
+    return TRUE;
+  }
+  if (!m_pBuffer) {
+    m_iBufLen = 0;
+    return FALSE;
+  }
+  m_iBufLen = iDesiredSize;
+  return TRUE;
+}
+void CFDE_CSSTextBuf::Subtract(int32_t iStart, int32_t iLength) {
+  FXSYS_assert(iStart >= 0 && iLength > 0);
+  if (iLength > m_iDatLen - iStart) {
+    iLength = m_iDatLen - iStart;
+  }
+  if (iLength < 0) {
+    iLength = 0;
+  } else {
+    FXSYS_memmove(m_pBuffer, m_pBuffer + iStart, iLength * sizeof(FX_WCHAR));
+  }
+  m_iDatLen = iLength;
+}