Upgrade elements that are created before a custom element definition is registered

Source/core/dom/CustomElementUpgradeCandidateMap.h

 /*
- * Copyright (c) 2010, Google Inc. All rights reserved.
+ * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  * copyright notice, this list of conditions and the following disclaimer
  * in the documentation and/or other materials provided with the
  * distribution.
  *     * Neither the name of Google Inc. nor the names of its
  * contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef FontTranscoder_h
-#define FontTranscoder_h
+#ifndef CustomElementUpgradeCandidateMap_h
+#define CustomElementUpgradeCandidateMap_h
 
+#include "core/dom/CustomElementDefinition.h"
+#include "core/dom/Element.h"
 #include <wtf/HashMap.h>
+#include <wtf/HashSet.h>
 #include <wtf/Noncopyable.h>
+#include <wtf/text/AtomicString.h>
 #include <wtf/text/AtomicStringHash.h>
 
 namespace WebCore {
 
-class FontDescription;
-class TextEncoding;
+class CustomElementUpgradeCandidateMap {
+    WTF_MAKE_NONCOPYABLE(CustomElementUpgradeCandidateMap);
+public:
+    CustomElementUpgradeCandidateMap() { }
 
-class FontTranscoder {
-    WTF_MAKE_NONCOPYABLE(FontTranscoder); WTF_MAKE_FAST_ALLOCATED;
-public:
-    void convert(String& text, const FontDescription&, const TextEncoding* = 0) const;
-    bool needsTranscoding(const FontDescription&, const TextEncoding* = 0) const;
+    typedef HashSet<Element*> ElementSet;
+
+    void add(CustomElementDefinition::CustomElementKind, const AtomicString& type, Element*);
+    bool contains(Element*) const;
+    void remove(Element*);
+    ElementSet takeUpgradeCandidatesFor(CustomElementDefinition* definition);
 
 private:
-    FontTranscoder();
-    ~FontTranscoder(); // Not implemented to make sure nobody accidentally calls delete -- WebCore does not delete singletons.
+    typedef std::pair<CustomElementDefinition::CustomElementKind, AtomicString> RequiredDefinition;
+    typedef HashMap<Element*, RequiredDefinition> UnresolvedElementMap;
+    typedef HashMap<AtomicString, ElementSet> UnresolvedDefinitionMap;
 
-    enum ConverterType {
-        NoConversion, BackslashToYenSign,
-    };
+    bool matches(CustomElementDefinition*, Element*);
 
-    ConverterType converterType(const FontDescription&, const TextEncoding*) const;
-
-    HashMap<AtomicString, ConverterType> m_converterTypes;
-
-    friend FontTranscoder& fontTranscoder();
+    UnresolvedElementMap m_unresolvedElements;
+    UnresolvedDefinitionMap m_unresolvedDefinitions;
 };
 
-FontTranscoder& fontTranscoder();
+}
 
-} // namespace WebCore
+#endif // CustomElementUpgradeCandidateMap_h
 
-#endif // FontTranscoder_h