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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 "core/dom/Node.h"
     33 
     34 #include "V8Attr.h"
     35 #include "V8CDATASection.h"
     36 #include "V8Comment.h"
     37 #include "V8Document.h"
     38 #include "V8DocumentFragment.h"
     39 #include "V8DocumentType.h"
     40 #include "V8Element.h"
     41 #include "V8Entity.h"
     42 #include "V8HTMLElement.h"
     43 #include "V8Node.h"
     44 #include "V8Notation.h"
     45 #include "V8ProcessingInstruction.h"
     46 #include "V8SVGElement.h"
     47 #include "V8ShadowRoot.h"
     48 #include "V8Text.h"
     49 #include "bindings/v8/ExceptionState.h"
     50 #include "bindings/v8/V8AbstractEventListener.h"
     51 #include "bindings/v8/V8Binding.h"
     52 #include "bindings/v8/V8EventListener.h"
     53 #include "core/dom/CustomElementCallbackDispatcher.h"
     54 #include "core/dom/Document.h"
     55 #include "core/dom/EventListener.h"
     56 #include "core/dom/shadow/ShadowRoot.h"
     57 #include "wtf/RefPtr.h"
     58 
     59 namespace WebCore {
     60 
     61 // This function is customized to take advantage of the optional 4th argument: AttachBehavior
     62 void V8Node::insertBeforeMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
     63 {
     64     v8::Handle<v8::Object> holder = args.Holder();
     65     Node* imp = V8Node::toNative(holder);
     66 
     67     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     68 
     69     ExceptionState es(args.GetIsolate());
     70     Node* newChild = V8Node::HasInstance(args[0], args.GetIsolate(), worldType(args.GetIsolate())) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0;
     71     Node* refChild = V8Node::HasInstance(args[1], args.GetIsolate(), worldType(args.GetIsolate())) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[1])) : 0;
     72     imp->insertBefore(newChild, refChild, es, AttachLazily);
     73     if (es.throwIfNeeded())
     74         return;
     75     v8SetReturnValue(args, args[0]);
     76 }
     77 
     78 // This function is customized to take advantage of the optional 4th argument: AttachBehavior
     79 void V8Node::replaceChildMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
     80 {
     81     v8::Handle<v8::Object> holder = args.Holder();
     82     Node* imp = V8Node::toNative(holder);
     83 
     84     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     85 
     86     ExceptionState es(args.GetIsolate());
     87     Node* newChild = V8Node::HasInstance(args[0], args.GetIsolate(), worldType(args.GetIsolate())) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0;
     88     Node* oldChild = V8Node::HasInstance(args[1], args.GetIsolate(), worldType(args.GetIsolate())) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[1])) : 0;
     89     imp->replaceChild(newChild, oldChild, es, AttachLazily);
     90     if (es.throwIfNeeded())
     91         return;
     92     v8SetReturnValue(args, args[1]);
     93 }
     94 
     95 void V8Node::removeChildMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
     96 {
     97     v8::Handle<v8::Object> holder = args.Holder();
     98     Node* imp = V8Node::toNative(holder);
     99 
    100     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
    101 
    102     ExceptionState es(args.GetIsolate());
    103     Node* oldChild = V8Node::HasInstance(args[0], args.GetIsolate(), worldType(args.GetIsolate())) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0;
    104     imp->removeChild(oldChild, es);
    105     if (es.throwIfNeeded())
    106         return;
    107     v8SetReturnValue(args, args[0]);
    108 }
    109 
    110 // This function is customized to take advantage of the optional 4th argument: AttachBehavior
    111 void V8Node::appendChildMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
    112 {
    113     v8::Handle<v8::Object> holder = args.Holder();
    114     Node* imp = V8Node::toNative(holder);
    115 
    116     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
    117 
    118     ExceptionState es(args.GetIsolate());
    119     Node* newChild = V8Node::HasInstance(args[0], args.GetIsolate(), worldType(args.GetIsolate())) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0;
    120     imp->appendChild(newChild, es, AttachLazily);
    121     if (es.throwIfNeeded())
    122         return;
    123     v8SetReturnValue(args, args[0]);
    124 }
    125 
    126 v8::Handle<v8::Object> wrap(Node* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
    127 {
    128     ASSERT(impl);
    129     switch (impl->nodeType()) {
    130     case Node::ELEMENT_NODE:
    131         // For performance reasons, this is inlined from V8Element::wrap and must remain in sync.
    132         if (impl->isHTMLElement())
    133             return wrap(toHTMLElement(impl), creationContext, isolate);
    134         if (impl->isSVGElement())
    135             return wrap(toSVGElement(impl), creationContext, isolate);
    136         return V8Element::createWrapper(toElement(impl), creationContext, isolate);
    137     case Node::ATTRIBUTE_NODE:
    138         return wrap(toAttr(impl), creationContext, isolate);
    139     case Node::TEXT_NODE:
    140         return wrap(toText(impl), creationContext, isolate);
    141     case Node::CDATA_SECTION_NODE:
    142         return wrap(static_cast<CDATASection*>(impl), creationContext, isolate);
    143     case Node::ENTITY_NODE:
    144         return wrap(static_cast<Entity*>(impl), creationContext, isolate);
    145     case Node::PROCESSING_INSTRUCTION_NODE:
    146         return wrap(static_cast<ProcessingInstruction*>(impl), creationContext, isolate);
    147     case Node::COMMENT_NODE:
    148         return wrap(static_cast<Comment*>(impl), creationContext, isolate);
    149     case Node::DOCUMENT_NODE:
    150         return wrap(toDocument(impl), creationContext, isolate);
    151     case Node::DOCUMENT_TYPE_NODE:
    152         return wrap(static_cast<DocumentType*>(impl), creationContext, isolate);
    153     case Node::DOCUMENT_FRAGMENT_NODE:
    154         if (impl->isShadowRoot())
    155             return wrap(toShadowRoot(impl), creationContext, isolate);
    156         return wrap(static_cast<DocumentFragment*>(impl), creationContext, isolate);
    157     case Node::NOTATION_NODE:
    158         return wrap(static_cast<Notation*>(impl), creationContext, isolate);
    159     default:
    160         break; // ENTITY_REFERENCE_NODE or XPATH_NAMESPACE_NODE
    161     }
    162     return V8Node::createWrapper(impl, creationContext, isolate);
    163 }
    164 } // namespace WebCore
    165