diff -r 000000000000 -r 4f2f89ce4247 WebCore/rendering/ShadowElement.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/ShadowElement.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2008, 2009, 2010 Apple 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:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  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.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY 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 ShadowElement_h
+#define ShadowElement_h
+
+#include "HTMLDivElement.h"
+#include "HTMLInputElement.h"
+
+namespace WebCore {
+
+template<class BaseElement>
+class ShadowElement : public BaseElement {
+protected:
+    ShadowElement(const QualifiedName& name, Node* shadowParent)
+        : BaseElement(name, shadowParent->document())
+        , m_shadowParent(shadowParent)
+    {
+    }
+
+    Node* shadowParent() const { return m_shadowParent; }
+
+private:
+    virtual bool isShadowNode() const { return true; }
+    virtual Node* shadowParentNode() { return m_shadowParent; }
+
+    Node* m_shadowParent;
+};
+
+class ShadowBlockElement : public ShadowElement<HTMLDivElement> {
+public:
+    static PassRefPtr<ShadowBlockElement> create(Node*);
+    static PassRefPtr<ShadowBlockElement> createForPart(Node*, PseudoId);
+    static bool partShouldHaveStyle(const RenderObject* parentRenderer, PseudoId pseudoId);
+    void layoutAsPart(const IntRect& partRect);
+    void updateStyleForPart(PseudoId);
+
+protected:
+    ShadowBlockElement(Node*);
+
+private:
+    static PassRefPtr<RenderStyle> createStyleForPart(RenderObject*, PseudoId);
+};
+
+class ShadowInputElement : public ShadowElement<HTMLInputElement> {
+public:
+    static PassRefPtr<ShadowInputElement> create(Node*);
+protected:
+    ShadowInputElement(Node*);
+};
+
+} // namespace WebCore
+
+#endif // ShadowElement_h