Explore the possibility of implementing the CSS Region interface.

Source/bindings/v8/custom/V8CSSRegionCustom.cpp

 /*
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
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  * modification, are permitted provided that the following conditions
  * are met:
  *
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  *    copyright notice, this list of conditions and the following
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  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
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  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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-#ifndef CSSFilterRule_h
-#define CSSFilterRule_h
+#include "config.h"
+#include "V8CSSRegion.h"
 
-#include "core/css/CSSRule.h"
+#include "V8HTMLElement.h"
+#include "bindings/v8/V8Binding.h"
+#include "core/css/CSSRegion.h"
+#include "core/dom/Element.h"
+#include "core/dom/Range.h"
+#include "core/rendering/RenderRegion.h"
+#include "wtf/RefPtr.h"
 
 namespace WebCore {
 
-class CSSStyleDeclaration;
-class StyleRuleFilter;
-class StyleRuleCSSStyleDeclaration;
+v8::Handle<v8::Object> wrap(CSSRegion* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    ASSERT(impl);
+    const RenderRegion* region = impl->region();
 
-class CSSFilterRule : public CSSRule {
-public:
-    static PassRefPtr<CSSFilterRule> create(StyleRuleFilter* rule, CSSStyleSheet* sheet) { return adoptRef(new CSSFilterRule(rule, sheet)); }
-
-    virtual ~CSSFilterRule();
-
-    virtual CSSRule::Type type() const OVERRIDE { return WEBKIT_FILTER_RULE; }
-    virtual String cssText() const OVERRIDE;
-    virtual void reattach(StyleRuleBase*) OVERRIDE;
-
-    CSSStyleDeclaration* style() const;
-
-private:
-    CSSFilterRule(StyleRuleFilter*, CSSStyleSheet* parent);
-
-    RefPtr<StyleRuleFilter> m_filterRule;
-    mutable RefPtr<StyleRuleCSSStyleDeclaration> m_propertiesCSSOMWrapper;
-};
-
+    // FIXME: Add more types once we support the PseudoElement interface
+    ASSERT(region->element());
+    ASSERT(region->element()->isHTMLElement());
+    v8::Handle<v8::Object> wrapper = DOMDataStore::getWrapper<V8HTMLElement>(toHTMLElement(region->element()), isolate);
+    if (!wrapper.IsEmpty())
+        return wrapper;
+    return wrap(toHTMLElement(region->element()), creationContext, isolate);
 }
 
-
-#endif // CSSFilterRule_h
+} // namespace WebCore