1 files changed, 46 insertions, 0 deletions
diff --git a/xfa/fde/css/cfde_csstagcache.h b/xfa/fde/css/cfde_csstagcache.h
new file mode 100644
index 0000000000..6d9b4e7054
--- /dev/null
+++ b/xfa/fde/css/cfde_csstagcache.h
@@ -0,0 +1,46 @@
+// Copyright 2017 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
+
+#ifndef XFA_FDE_CSS_CFDE_CSSTAGCACHE_H_
+#define XFA_FDE_CSS_CFDE_CSSTAGCACHE_H_
+
+#include <vector>
+
+#include "core/fxcrt/fx_system.h"
+#include "third_party/base/stl_util.h"
+
+class CXFA_CSSTagProvider;
+
+class CFDE_CSSTagCache {
+ public:
+  CFDE_CSSTagCache(CFDE_CSSTagCache* parent, CXFA_CSSTagProvider* tag);
+  CFDE_CSSTagCache(const CFDE_CSSTagCache& it);
+  ~CFDE_CSSTagCache();
+
+  CFDE_CSSTagCache* GetParent() const { return pParent; }
+  CXFA_CSSTagProvider* GetTag() const { return pTag; }
+  uint32_t HashID() const { return dwIDHash; }
+  uint32_t HashTag() const { return dwTagHash; }
+  int32_t CountHashClass() const {
+    return pdfium::CollectionSize<int32_t>(dwClassHashes);
+  }
+  void SetClassIndex(int32_t index) { iClassIndex = index; }
+  uint32_t HashClass() const {
+    return iClassIndex < pdfium::CollectionSize<int32_t>(dwClassHashes)
+               ? dwClassHashes[iClassIndex]
+               : 0;
+  }
+
+ private:
+  CXFA_CSSTagProvider* pTag;
+  CFDE_CSSTagCache* pParent;
+  uint32_t dwIDHash;
+  uint32_t dwTagHash;
+  int32_t iClassIndex;
+  std::vector<uint32_t> dwClassHashes;
+};
+
+#endif  // XFA_FDE_CSS_CFDE_CSSTAGCACHE_H_