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      1 /*
      2  * Copyright (C) 2007-2009 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 "V8NamedNodeMap.h"
     33 
     34 #include "NamedNodeMap.h"
     35 #include "V8Attr.h"
     36 #include "V8Binding.h"
     37 #include "V8BindingState.h"
     38 #include "V8Element.h"
     39 #include "V8Node.h"
     40 #include "V8Proxy.h"
     41 
     42 #include <wtf/RefPtr.h>
     43 
     44 namespace WebCore {
     45 
     46 v8::Handle<v8::Value> V8NamedNodeMap::indexedPropertyGetter(uint32_t index, const v8::AccessorInfo& info)
     47 {
     48     INC_STATS("DOM.NamedNodeMap.IndexedPropertyGetter");
     49     NamedNodeMap* imp = V8NamedNodeMap::toNative(info.Holder());
     50     RefPtr<Node> result = imp->item(index);
     51     if (!result)
     52         return notHandledByInterceptor();
     53 
     54     return toV8(result.release());
     55 }
     56 
     57 v8::Handle<v8::Value> V8NamedNodeMap::namedPropertyGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
     58 {
     59     INC_STATS("DOM.NamedNodeMap.NamedPropertyGetter");
     60     // Search the prototype chain first.
     61     v8::Handle<v8::Value> value = info.Holder()->GetRealNamedPropertyInPrototypeChain(name);
     62     if (!value.IsEmpty())
     63         return value;
     64 
     65     // Then look for IDL defined properties on the object itself.
     66     if (info.Holder()->HasRealNamedCallbackProperty(name))
     67         return notHandledByInterceptor();
     68 
     69     // Finally, search the DOM.
     70     NamedNodeMap* imp = V8NamedNodeMap::toNative(info.Holder());
     71     RefPtr<Node> result = imp->getNamedItem(toWebCoreString(name));
     72     if (!result)
     73         return notHandledByInterceptor();
     74 
     75     return toV8(result.release());
     76 }
     77 
     78 v8::Handle<v8::Value> toV8(NamedNodeMap* impl)
     79 {
     80     if (!impl)
     81         return v8::Null();
     82     v8::Handle<v8::Object> wrapper = V8NamedNodeMap::wrap(impl);
     83     // Add a hidden reference from named node map to its owner node.
     84     Element* element = impl->element();
     85     if (!wrapper.IsEmpty() && element)
     86         V8DOMWrapper::setHiddenReference(wrapper, toV8(element));
     87     return wrapper;
     88 }
     89 
     90 } // namespace WebCore
     91