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authorDan Sinclair <dsinclair@chromium.org>2017-08-08 13:23:24 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-08-08 17:37:54 +0000
commit9f0e85ac36826e39a242f8039c2b2c333ee99f4f (patch)
treec93f2a9322968f7723a4b3da5ea5e4cb7b79b075 /core/fxcrt/css/cfx_cssstylesheet.cpp
parent78fc9aa402409f3fcd8dc1f458e67798cb3b483e (diff)
downloadpdfium-9f0e85ac36826e39a242f8039c2b2c333ee99f4f.tar.xz
Move CSS code to core
The xfa/fde/css code has no other links into xfa/. This CL moves the css code to core/fxcrt/css and sets to only build when pdf_enable_xfa is enabled. Change-Id: Iefd208e1f83a28b80b567c574e841e87bce310be Reviewed-on: https://pdfium-review.googlesource.com/9251 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'core/fxcrt/css/cfx_cssstylesheet.cpp')
-rw-r--r--core/fxcrt/css/cfx_cssstylesheet.cpp140
1 files changed, 140 insertions, 0 deletions
diff --git a/core/fxcrt/css/cfx_cssstylesheet.cpp b/core/fxcrt/css/cfx_cssstylesheet.cpp
new file mode 100644
index 0000000000..9bd25c044f
--- /dev/null
+++ b/core/fxcrt/css/cfx_cssstylesheet.cpp
@@ -0,0 +1,140 @@
+// 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/fxcrt/css/cfx_cssstylesheet.h"
+
+#include <utility>
+
+#include "core/fxcrt/css/cfx_cssdatatable.h"
+#include "core/fxcrt/css/cfx_cssdeclaration.h"
+#include "core/fxcrt/css/cfx_cssstylerule.h"
+#include "core/fxcrt/fx_codepage.h"
+#include "third_party/base/ptr_util.h"
+#include "third_party/base/stl_util.h"
+
+CFX_CSSStyleSheet::CFX_CSSStyleSheet() {}
+
+CFX_CSSStyleSheet::~CFX_CSSStyleSheet() {
+ Reset();
+}
+
+void CFX_CSSStyleSheet::Reset() {
+ m_RuleArray.clear();
+ m_StringCache.clear();
+}
+
+int32_t CFX_CSSStyleSheet::CountRules() const {
+ return pdfium::CollectionSize<int32_t>(m_RuleArray);
+}
+
+CFX_CSSStyleRule* CFX_CSSStyleSheet::GetRule(int32_t index) const {
+ return m_RuleArray[index].get();
+}
+
+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;
+}
+
+CFX_CSSSyntaxStatus CFX_CSSStyleSheet::LoadStyleRule(
+ CFX_CSSSyntaxParser* pSyntax,
+ std::vector<std::unique_ptr<CFX_CSSStyleRule>>* ruleArray) {
+ std::vector<std::unique_ptr<CFX_CSSSelector>> selectors;
+
+ CFX_CSSStyleRule* pStyleRule = nullptr;
+ int32_t iValueLen = 0;
+ const CFX_CSSPropertyTable* propertyTable = nullptr;
+ CFX_WideString wsName;
+ while (1) {
+ switch (pSyntax->DoSyntaxParse()) {
+ case CFX_CSSSyntaxStatus::Selector: {
+ CFX_WideStringC strValue = pSyntax->GetCurrentString();
+ auto pSelector = CFX_CSSSelector::FromString(strValue);
+ if (pSelector)
+ selectors.push_back(std::move(pSelector));
+ break;
+ }
+ case CFX_CSSSyntaxStatus::PropertyName: {
+ CFX_WideStringC strValue = pSyntax->GetCurrentString();
+ propertyTable = CFX_GetCSSPropertyByName(strValue);
+ if (!propertyTable)
+ wsName = CFX_WideString(strValue);
+ break;
+ }
+ case CFX_CSSSyntaxStatus::PropertyValue: {
+ if (propertyTable || iValueLen > 0) {
+ CFX_WideStringC strValue = pSyntax->GetCurrentString();
+ auto* decl = pStyleRule->GetDeclaration();
+ if (!strValue.IsEmpty()) {
+ if (propertyTable) {
+ decl->AddProperty(propertyTable, strValue);
+ } else {
+ decl->AddProperty(wsName, CFX_WideString(strValue));
+ }
+ }
+ }
+ break;
+ }
+ case CFX_CSSSyntaxStatus::DeclOpen: {
+ if (!pStyleRule && !selectors.empty()) {
+ auto rule = pdfium::MakeUnique<CFX_CSSStyleRule>();
+ pStyleRule = rule.get();
+ pStyleRule->SetSelector(&selectors);
+ ruleArray->push_back(std::move(rule));
+ } else {
+ SkipRuleSet(pSyntax);
+ return CFX_CSSSyntaxStatus::None;
+ }
+ break;
+ }
+ case CFX_CSSSyntaxStatus::DeclClose: {
+ if (pStyleRule && pStyleRule->GetDeclaration()->empty()) {
+ ruleArray->pop_back();
+ pStyleRule = nullptr;
+ }
+ return CFX_CSSSyntaxStatus::None;
+ }
+ case CFX_CSSSyntaxStatus::EOS:
+ return CFX_CSSSyntaxStatus::EOS;
+ case CFX_CSSSyntaxStatus::Error:
+ default:
+ return CFX_CSSSyntaxStatus::Error;
+ }
+ }
+}
+
+void CFX_CSSStyleSheet::SkipRuleSet(CFX_CSSSyntaxParser* pSyntax) {
+ while (1) {
+ switch (pSyntax->DoSyntaxParse()) {
+ case CFX_CSSSyntaxStatus::Selector:
+ case CFX_CSSSyntaxStatus::DeclOpen:
+ case CFX_CSSSyntaxStatus::PropertyName:
+ case CFX_CSSSyntaxStatus::PropertyValue:
+ break;
+ case CFX_CSSSyntaxStatus::DeclClose:
+ case CFX_CSSSyntaxStatus::EOS:
+ case CFX_CSSSyntaxStatus::Error:
+ default:
+ return;
+ }
+ }
+}