Move xfa/src up to xfa/.

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

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1803723002 .

1 files changed, 487 insertions, 0 deletions

diff --git a/xfa/fde/css/fde_csssyntax.cpp b/xfa/fde/css/fde_csssyntax.cpp
new file mode 100644
index 0000000000..e03c57c6a8
--- /dev/null
+++ b/xfa/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/fde/css/fde_csssyntax.h"
+
+#include "xfa/fde/css/fde_cssdatatable.h"
+#include "xfa/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;
+}