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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "V8StyleSheet.h"
     33 
     34 #include "V8DOMWrapper.h"
     35 #include "V8CSSStyleSheet.h"
     36 #include "V8Node.h"
     37 
     38 namespace WebCore {
     39 
     40 v8::Handle<v8::Value> toV8(StyleSheet* impl)
     41 {
     42     if (!impl)
     43         return v8::Null();
     44     if (impl->isCSSStyleSheet())
     45         return toV8(static_cast<CSSStyleSheet*>(impl));
     46     v8::Handle<v8::Object> wrapper = V8StyleSheet::wrap(impl);
     47     // Add a hidden reference from stylesheet object to its owner node.
     48     Node* ownerNode = impl->ownerNode();
     49     if (ownerNode && !wrapper.IsEmpty())
     50         V8DOMWrapper::setNamedHiddenReference(wrapper, "ownerNode", toV8(ownerNode));
     51     return wrapper;
     52 }
     53 
     54 } // namespace WebCore
     55