FX_BOOL CFDE_CSSStyleSheet::LoadFromSyntax(IFDE_CSSSyntaxParser* pSyntax) {
Reset();
m_pAllocator = FX_CreateAllocator(FX_ALLOCTYPE_Static, 1024, 0);
if (m_pAllocator == NULL) {
return FALSE;
}
FDE_CSSSYNTAXSTATUS eStatus;
do {
switch (eStatus = pSyntax->DoSyntaxParse()) {
case FDE_CSSSYNTAXSTATUS_StyleRule:
eStatus = LoadStyleRule(pSyntax, m_RuleArray);
break;
case FDE_CSSSYNTAXSTATUS_MediaRule:
eStatus = LoadMediaRule(pSyntax);
break;
case FDE_CSSSYNTAXSTATUS_FontFaceRule:
eStatus = LoadFontFaceRule(pSyntax, m_RuleArray);
break;
case FDE_CSSSYNTAXSTATUS_ImportRule:
eStatus = LoadImportRule(pSyntax);
break;
case FDE_CSSSYNTAXSTATUS_PageRule:
eStatus = LoadPageRule(pSyntax);
break;
default:
break;
}
} while (eStatus >= FDE_CSSSYNTAXSTATUS_None);
m_Selectors.RemoveAll();
m_StringCache.RemoveAll();
return eStatus != FDE_CSSSYNTAXSTATUS_Error;
}
bool CFX_CSSStyleSheet::LoadBuffer(const wchar_t* pBuffer, int32_t iBufSize) {
ASSERT(pBuffer);
ASSERT(iBufSize > 0);
auto pSyntax = pdfium::MakeUnique<CFX_CSSSyntaxParser>(pBuffer, iBufSize);
Reset();
CFX_CSSSyntaxStatus eStatus;
do {
switch (eStatus = pSyntax->DoSyntaxParse()) {
case CFX_CSSSyntaxStatus::StyleRule:
eStatus = LoadStyleRule(pSyntax.get(), &m_RuleArray);
break;
default:
break;
}
} while (eStatus >= CFX_CSSSyntaxStatus::None);
m_StringCache.clear();
return eStatus != CFX_CSSSyntaxStatus::Error;
}
FDE_CSSSYNTAXSTATUS CFDE_CSSStyleSheet::LoadMediaRule(
IFDE_CSSSyntaxParser* pSyntax) {
FX_DWORD dwMediaList = 0;
CFDE_CSSMediaRule* pMediaRule = NULL;
for (;;) {
switch (pSyntax->DoSyntaxParse()) {
case FDE_CSSSYNTAXSTATUS_MediaType: {
int32_t iLen;
const FX_WCHAR* psz = pSyntax->GetCurrentString(iLen);
FDE_LPCCSSMEDIATYPETABLE pMediaType =
FDE_GetCSSMediaTypeByName(psz, iLen);
if (pMediaType != NULL) {
dwMediaList |= pMediaType->wValue;
}
} break;
case FDE_CSSSYNTAXSTATUS_StyleRule:
if (pMediaRule == NULL) {
SkipRuleSet(pSyntax);
} else {
FDE_CSSSYNTAXSTATUS eStatus =
LoadStyleRule(pSyntax, pMediaRule->GetArray());
if (eStatus < FDE_CSSSYNTAXSTATUS_None) {
return eStatus;
}
}
break;
case FDE_CSSSYNTAXSTATUS_DeclOpen:
if ((dwMediaList & m_dwMediaList) > 0 && pMediaRule == NULL) {
pMediaRule = FDE_NewWith(m_pAllocator) CFDE_CSSMediaRule(dwMediaList);
m_RuleArray.Add(pMediaRule);
}
break;
case FDE_CSSSYNTAXSTATUS_DeclClose:
return FDE_CSSSYNTAXSTATUS_None;
FDE_CSSSWITCHDEFAULTS();
}
}
}
