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>

1 files changed, 56 insertions, 0 deletions

diff --git a/core/fxcrt/css/cfx_cssrulecollection.cpp b/core/fxcrt/css/cfx_cssrulecollection.cpp
new file mode 100644
index 0000000000..635ca91c72
--- /dev/null
+++ b/core/fxcrt/css/cfx_cssrulecollection.cpp
@@ -0,0 +1,56 @@
+// Copyright 2016 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_cssrulecollection.h"
+
+#include <algorithm>
+#include <utility>
+
+#include "core/fxcrt/css/cfx_cssdeclaration.h"
+#include "core/fxcrt/css/cfx_cssselector.h"
+#include "core/fxcrt/css/cfx_cssstylerule.h"
+#include "core/fxcrt/css/cfx_cssstylesheet.h"
+#include "core/fxcrt/css/cfx_csssyntaxparser.h"
+#include "third_party/base/ptr_util.h"
+
+CFX_CSSRuleCollection::CFX_CSSRuleCollection() : m_iSelectors(0) {}
+
+CFX_CSSRuleCollection::~CFX_CSSRuleCollection() {
+  Clear();
+}
+
+void CFX_CSSRuleCollection::Clear() {
+  m_TagRules.clear();
+  m_iSelectors = 0;
+}
+
+const std::vector<std::unique_ptr<CFX_CSSRuleCollection::Data>>*
+CFX_CSSRuleCollection::GetTagRuleData(const CFX_WideString& tagname) const {
+  auto it = m_TagRules.find(FX_HashCode_GetW(tagname.c_str(), true));
+  return it != m_TagRules.end() ? &it->second : nullptr;
+}
+
+void CFX_CSSRuleCollection::AddRulesFrom(const CFX_CSSStyleSheet* sheet) {
+  int32_t iRules = sheet->CountRules();
+  for (int32_t j = 0; j < iRules; j++)
+    AddRulesFrom(sheet, sheet->GetRule(j));
+}
+
+void CFX_CSSRuleCollection::AddRulesFrom(const CFX_CSSStyleSheet* pStyleSheet,
+                                         CFX_CSSStyleRule* pStyleRule) {
+  CFX_CSSDeclaration* pDeclaration = pStyleRule->GetDeclaration();
+  int32_t iSelectors = pStyleRule->CountSelectorLists();
+  for (int32_t i = 0; i < iSelectors; ++i) {
+    CFX_CSSSelector* pSelector = pStyleRule->GetSelectorList(i);
+    m_TagRules[pSelector->GetNameHash()].push_back(
+        pdfium::MakeUnique<Data>(pSelector, pDeclaration));
+    m_iSelectors++;
+  }
+}
+
+CFX_CSSRuleCollection::Data::Data(CFX_CSSSelector* pSel,
+                                  CFX_CSSDeclaration* pDecl)
+    : pSelector(pSel), pDeclaration(pDecl) {}