Fix an assertion failure in CXFA_FWLTheme::Initialize()

BUG=pdfium:350
R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1608593003 .

2 files changed, 117 insertions, 39 deletions

diff --git a/xfa/src/fgas/src/font/fx_stdfontmgr.cpp b/xfa/src/fgas/src/font/fx_stdfontmgr.cpp
index 6201022323..96214685f0 100644
--- a/xfa/src/fgas/src/font/fx_stdfontmgr.cpp
+++ b/xfa/src/fgas/src/font/fx_stdfontmgr.cpp
@@ -4,6 +4,7 @@
 

 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

 

+#include "core/src/fxcrt/extension.h"

 #include "xfa/src/fgas/src/fgas_base.h"

 #include "fx_stdfontmgr.h"

 #include "fx_fontutils.h"

@@ -608,45 +609,53 @@ CFX_FontMgrImp::CFX_FontMgrImp(IFX_FontSourceEnum* pFontEnum,
       m_pDelegate(pDelegate),

       m_pUserData(pUserData) {}

 

-FX_BOOL CFX_FontMgrImp::EnumFonts() {

+FX_BOOL CFX_FontMgrImp::EnumFontsFromFontMapper() {

+  CFX_FontMapper* pFontMapper =

+      CFX_GEModule::Get()->GetFontMgr()->GetBuiltinMapper();

+  if (!pFontMapper)

+    return FALSE;

+  IFX_SystemFontInfo* pSystemFontInfo = pFontMapper->GetSystemFontInfo();

+  if (!pSystemFontInfo)

+    return FALSE;

+  pSystemFontInfo->EnumFontList(pFontMapper);

+  for (int32_t i = 0; i < pFontMapper->GetFaceSize(); ++i) {

+    IFX_FileRead* pFontStream =

+        CreateFontStream(pFontMapper, pSystemFontInfo, i);

+    if (!pFontStream)

+      continue;

+    ReportFaces(pFontStream);

+    pFontStream->Release();

+  }

+  if (m_InstalledFonts.GetSize() == 0)

+    return FALSE;

+  return TRUE;

+}

+FX_BOOL CFX_FontMgrImp::EnumFontsFromFiles() {

   CFX_GEModule::Get()->GetFontMgr()->InitFTLibrary();

-  FXFT_Face pFace = NULL;

+  FXFT_Face pFace = nullptr;

   FX_POSITION pos = m_pFontSource->GetStartPosition();

-  IFX_FileAccess* pFontSource = NULL;

-  IFX_FileRead* pFontStream = NULL;

+  IFX_FileAccess* pFontSource = nullptr;

+  IFX_FileRead* pFontStream = nullptr;

   while (pos) {

     pFontSource = m_pFontSource->GetNext(pos);

     pFontStream = pFontSource->CreateFileStream(FX_FILEMODE_ReadOnly);

-    if (NULL == pFontStream) {

+    if (!pFontStream) {

       pFontSource->Release();

       continue;

     }

-    if (NULL == (pFace = LoadFace(pFontStream, 0))) {

-      pFontStream->Release();

-      pFontSource->Release();

-      continue;

-    }

-    int32_t nFaceCount = pFace->num_faces;

-    ReportFace(pFace, m_InstalledFonts, pFontSource);

-    if (FXFT_Get_Face_External_Stream(pFace)) {

-      FXFT_Clear_Face_External_Stream(pFace);

-    }

-    FXFT_Done_Face(pFace);

-    for (int32_t i = 1; i < nFaceCount; i++) {

-      if (NULL == (pFace = LoadFace(pFontStream, i))) {

-        continue;

-      }

-      ReportFace(pFace, m_InstalledFonts, pFontSource);

-      if (FXFT_Get_Face_External_Stream(pFace)) {

-        FXFT_Clear_Face_External_Stream(pFace);

-      }

-      FXFT_Done_Face(pFace);

-    }

+    ReportFaces(pFontStream);

     pFontStream->Release();

     pFontSource->Release();

   }

+  if (m_InstalledFonts.GetSize() == 0)

+    return FALSE;

   return TRUE;

 }

+FX_BOOL CFX_FontMgrImp::EnumFonts() {

+  if (EnumFontsFromFontMapper())

+    return TRUE;

+  return EnumFontsFromFiles();

+}

 void CFX_FontMgrImp::Release() {

   for (int32_t i = 0; i < m_InstalledFonts.GetSize(); i++) {

     delete m_InstalledFonts[i];

@@ -756,7 +765,10 @@ IFX_Font* CFX_FontMgrImp::GetFontByCodePage(FX_WORD wCodePage,
     return NULL;

   }

   CFX_FontDescriptor* pDesc = sortedFonts->GetAt(0).pFont;

-  pFont = LoadFont(pDesc->m_pFileAccess, pDesc->m_nFaceIndex, NULL);

+  if (pDesc->m_pFileAccess)

+    pFont = LoadFont(pDesc->m_pFileAccess, pDesc->m_nFaceIndex, nullptr);

+  else

+    pFont = LoadFont(pDesc->m_wsFaceName, pDesc->m_nFaceIndex, nullptr);

   if (NULL != pFont) {

     pFont->SetLogicalFontStyle(dwFontStyles);

   }

@@ -978,6 +990,39 @@ IFX_Font* CFX_FontMgrImp::LoadFont(IFX_FileAccess* pFontAccess,
   }

   return pFont;

 }

+IFX_Font* CFX_FontMgrImp::LoadFont(const CFX_WideString& wsFaceName,

+                                   int32_t iFaceIndex,

+                                   int32_t* pFaceCount) {

+  CFX_FontMgr* pFontMgr = CFX_GEModule::Get()->GetFontMgr();

+  CFX_FontMapper* pFontMapper = pFontMgr->GetBuiltinMapper();

+  if (!pFontMapper)

+    return nullptr;

+  IFX_SystemFontInfo* pSystemFontInfo = pFontMapper->GetSystemFontInfo();

+  if (!pSystemFontInfo)

+    return nullptr;

+  IFX_FileRead* pFontStream =

+      CreateFontStream(pFontMapper, pSystemFontInfo, iFaceIndex);

+  if (!pFontStream)

+    return nullptr;

+  if (!LoadFace(pFontStream, 0)) {

+    pFontStream->Release();

+    return nullptr;

+  }

+  CFX_Font* pInternalFont = new CFX_Font();

+  if (!pInternalFont->LoadFile(pFontStream, iFaceIndex)) {

+    pFontStream->Release();

+    return nullptr;

+  }

+  IFX_Font* pFont = IFX_Font::LoadFont(pInternalFont, this, FALSE);

+  if (!pFont) {

+    pFontStream->Release();

+    return nullptr;

+  }

+  m_IFXFont2FileRead.SetAt(pFont, pFontStream);

+  if (pFaceCount)

+    *pFaceCount = ((CFX_Font*)pFont->GetDevFont())->GetFace()->num_faces;

+  return pFont;

+}

 extern "C" {

 unsigned long _ftStreamRead(FXFT_Stream stream,

                             unsigned long offset,

@@ -1030,6 +1075,22 @@ FXFT_Face CFX_FontMgrImp::LoadFace(IFX_FileRead* pFontStream,
   FXFT_Set_Pixel_Sizes(pFace, 0, 64);

   return pFace;

 }

+IFX_FileRead* CFX_FontMgrImp::CreateFontStream(

+    CFX_FontMapper* pFontMapper,

+    IFX_SystemFontInfo* pSystemFontInfo,

+    FX_DWORD index) {

+  int iExact = 0;

+  void* hFont = pSystemFontInfo->MapFont(

+      0, 0, FXFONT_DEFAULT_CHARSET, 0, pFontMapper->GetFaceName(index), iExact);

+  if (!hFont)

+    return nullptr;

+  FX_DWORD dwFileSize = pSystemFontInfo->GetFontData(hFont, 0, nullptr, 0);

+  if (dwFileSize == 0)

+    return nullptr;

+  uint8_t* pBuffer = FX_Alloc(uint8_t, dwFileSize + 1);

+  dwFileSize = pSystemFontInfo->GetFontData(hFont, 0, pBuffer, dwFileSize);

+  return new CFX_MemoryStream(pBuffer, dwFileSize, TRUE);

+}

 

 int32_t CFX_FontMgrImp::MatchFonts(CFX_FontDescriptorInfos& MatchedFonts,

                                    FX_WORD wCodePage,

@@ -1038,7 +1099,6 @@ int32_t CFX_FontMgrImp::MatchFonts(CFX_FontDescriptorInfos& MatchedFonts,
                                    FX_WCHAR wcUnicode) {

   MatchedFonts.RemoveAll();

   CFX_WideString wsNormalizedFontName = FontName;

-  NormalizeFontName(wsNormalizedFontName);

   static const int32_t nMax = 0xffff;

   CFX_FontDescriptor* pFont = NULL;

   int32_t nCount = m_InstalledFonts.GetSize();

@@ -1276,13 +1336,28 @@ void CFX_FontMgrImp::ReportFace(FXFT_Face pFace,
   pFont->m_wsFaceName =

       CFX_WideString::FromLocal(FXFT_Get_Postscript_Name(pFace));

   pFont->m_nFaceIndex = pFace->face_index;

-  pFont->m_pFileAccess = pFontAccess->Retain();

-  NormalizeFontName(pFont->m_wsFaceName);

-  for (int32_t i = 0; i < pFont->m_wsFamilyNames.GetSize(); i++) {

-    NormalizeFontName(pFont->m_wsFamilyNames[i]);

-  }

+  if (pFontAccess)

+    pFont->m_pFileAccess = pFontAccess->Retain();

+  else

+    pFont->m_pFileAccess = nullptr;

   Fonts.Add(pFont);

 }

+void CFX_FontMgrImp::ReportFaces(IFX_FileRead* pFontStream) {

+  int32_t index = 0;

+  int32_t num_faces = 0;

+  do {

+    FXFT_Face pFace = LoadFace(pFontStream, index++);

+    if (!pFace)

+      continue;

+    // All faces keep number of faces. It can be retrieved from any one face.

+    if (!num_faces)

+      num_faces = pFace->num_faces;

+    ReportFace(pFace, m_InstalledFonts, nullptr);

+    if (FXFT_Get_Face_External_Stream(pFace))

+      FXFT_Clear_Face_External_Stream(pFace);

+    FXFT_Done_Face(pFace);

+  } while (index < num_faces);

+}

 FX_DWORD CFX_FontMgrImp::GetFlags(FXFT_Face pFace) {

   FX_DWORD flag = 0;

   if (FT_IS_FIXED_WIDTH(pFace)) {

@@ -1447,11 +1522,6 @@ void CFX_FontMgrImp::GetUSBCSB(FXFT_Face pFace, FX_DWORD* USB, FX_DWORD* CSB) {
     CSB[1] = 0;

   }

 }

-void CFX_FontMgrImp::NormalizeFontName(CFX_WideString& FontName) {

-  FontName.MakeLower();

-  FontName.Remove(' ');

-  FontName.Remove('-');

-}

 int32_t CFX_FontMgrImp::IsPartName(const CFX_WideString& Name1,

                                    const CFX_WideString& Name2) {

   if (Name1.Find((const FX_WCHAR*)Name2) != -1) {

diff --git a/xfa/src/fgas/src/font/fx_stdfontmgr.h b/xfa/src/fgas/src/font/fx_stdfontmgr.h
index 3ab984fc79..603a0f5d3c 100644
--- a/xfa/src/fgas/src/font/fx_stdfontmgr.h
+++ b/xfa/src/fgas/src/font/fx_stdfontmgr.h
@@ -179,14 +179,20 @@ class CFX_FontMgrImp : public IFX_FontMgr {
                              int32_t iFaceIndex,

                              int32_t* pFaceCount,

                              FX_BOOL bSaveStream = FALSE);

+  virtual IFX_Font* LoadFont(const CFX_WideString& wsFaceName,

+                             int32_t iFaceIndex,

+                             int32_t* pFaceCount);

   virtual void ClearFontCache();

   virtual void RemoveFont(IFX_Font* pFont);

   FX_BOOL EnumFonts();

+  FX_BOOL EnumFontsFromFontMapper();

+  FX_BOOL EnumFontsFromFiles();

 

  protected:

   void ReportFace(FXFT_Face pFace,

                   CFX_FontDescriptors& Fonts,

                   IFX_FileAccess* pFontAccess);

+  void ReportFaces(IFX_FileRead* pFontStream);

   void GetNames(const uint8_t* name_table, CFX_WideStringArray& Names);

   void GetCharsets(FXFT_Face pFace, CFX_WordArray& Charsets);

   void GetUSBCSB(FXFT_Face pFace, FX_DWORD* USB, FX_DWORD* CSB);

@@ -194,7 +200,6 @@ class CFX_FontMgrImp : public IFX_FontMgr {
   CFX_FontDescriptors m_InstalledFonts;

   FX_BOOL VerifyUnicode(CFX_FontDescriptor* pDesc, FX_WCHAR wcUnicode);

   FX_BOOL VerifyUnicode(IFX_Font* pFont, FX_WCHAR wcUnicode);

-  void NormalizeFontName(CFX_WideString& FontName);

   int32_t IsPartName(const CFX_WideString& Name1, const CFX_WideString& Name2);

   int32_t MatchFonts(CFX_FontDescriptorInfos& MatchedFonts,

                      FX_WORD wCodePage,

@@ -211,6 +216,9 @@ class CFX_FontMgrImp : public IFX_FontMgr {
                      int32_t* pFaceCount,

                      FX_BOOL bWantCache = FALSE);

   FXFT_Face LoadFace(IFX_FileRead* pFontStream, int32_t iFaceIndex);

+  IFX_FileRead* CreateFontStream(CFX_FontMapper* pFontMapper,

+                                 IFX_SystemFontInfo* pSystemFontInfo,

+                                 FX_DWORD index);

   CFX_HashFontDescsMap m_Hash2CandidateList;

   CFX_HashFontsMap m_Hash2Fonts;

   CFX_HashFileMap m_Hash2FileAccess;