V8NodeCustom.cpp   [plain text]

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#include "config.h"
#include "Node.h"

#include "Document.h"
#include "EventListener.h"

#include "V8AbstractEventListener.h"
#include "V8Binding.h"
#include "V8CustomBinding.h"
#include "V8CustomEventListener.h"
#include "V8Node.h"
#include "V8Proxy.h"

#include <wtf/RefPtr.h>

namespace WebCore {

v8::Handle<v8::Value> V8Node::addEventListenerCallback(const v8::Arguments& args)
{
    INC_STATS("DOM.Node.addEventListener()");
    Node* node = V8Node::toNative(args.Holder());

    RefPtr<EventListener> listener = V8DOMWrapper::getEventListener(node, args[1], false, ListenerFindOrCreate);
    if (listener) {
        String type = toWebCoreString(args[0]);
        bool useCapture = args[2]->BooleanValue();
        node->addEventListener(type, listener, useCapture);
        createHiddenDependency(args.Holder(), args[1], cacheIndex);
    }
    return v8::Undefined();
}

v8::Handle<v8::Value> V8Node::removeEventListenerCallback(const v8::Arguments& args)
{
    INC_STATS("DOM.Node.removeEventListener()");
    Node* node = V8Node::toNative(args.Holder());

    // It is possbile that the owner document of the node is detached
    // from the frame.
    // See issue http://b/878909
    RefPtr<EventListener> listener = V8DOMWrapper::getEventListener(node, args[1], false, ListenerFindOnly);
    if (listener) {
        AtomicString type = v8ValueToAtomicWebCoreString(args[0]);
        bool useCapture = args[2]->BooleanValue();
        node->removeEventListener(type, listener.get(), useCapture);
        removeHiddenDependency(args.Holder(), args[1], cacheIndex);
    }

    return v8::Undefined();
}

// This function is customized to take advantage of the optional 4th argument: shouldLazyAttach
v8::Handle<v8::Value> V8Node::insertBeforeCallback(const v8::Arguments& args)
{
    INC_STATS("DOM.Node.insertBefore");
    v8::Handle<v8::Object> holder = args.Holder();
    Node* imp = V8Node::toNative(holder);
    ExceptionCode ec = 0;
    Node* newChild = V8Node::HasInstance(args[0]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0;
    Node* refChild = V8Node::HasInstance(args[1]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[1])) : 0;
    bool success = imp->insertBefore(newChild, refChild, ec, true);
    if (ec) {
        V8Proxy::setDOMException(ec);
        return v8::Handle<v8::Value>();
    }
    if (success)
        return args[0];
    return v8::Null();
}

// This function is customized to take advantage of the optional 4th argument: shouldLazyAttach
v8::Handle<v8::Value> V8Node::replaceChildCallback(const v8::Arguments& args)
{
    INC_STATS("DOM.Node.replaceChild");
    v8::Handle<v8::Object> holder = args.Holder();
    Node* imp = V8Node::toNative(holder);
    ExceptionCode ec = 0;
    Node* newChild = V8Node::HasInstance(args[0]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0;
    Node* oldChild = V8Node::HasInstance(args[1]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[1])) : 0;
    bool success = imp->replaceChild(newChild, oldChild, ec, true);
    if (ec) {
        V8Proxy::setDOMException(ec);
        return v8::Handle<v8::Value>();
    }
    if (success)
        return args[1];
    return v8::Null();
}

v8::Handle<v8::Value> V8Node::removeChildCallback(const v8::Arguments& args)
{
    INC_STATS("DOM.Node.removeChild");
    v8::Handle<v8::Object> holder = args.Holder();
    Node* imp = V8Node::toNative(holder);
    ExceptionCode ec = 0;
    Node* oldChild = V8Node::HasInstance(args[0]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0;
    bool success = imp->removeChild(oldChild, ec);
    if (ec) {
        V8Proxy::setDOMException(ec);
        return v8::Handle<v8::Value>();
    }
    if (success)
        return args[0];
    return v8::Null();
}

// This function is customized to take advantage of the optional 4th argument: shouldLazyAttach
v8::Handle<v8::Value> V8Node::appendChildCallback(const v8::Arguments& args)
{
    INC_STATS("DOM.Node.appendChild");
    v8::Handle<v8::Object> holder = args.Holder();
    Node* imp = V8Node::toNative(holder);
    ExceptionCode ec = 0;
    Node* newChild = V8Node::HasInstance(args[0]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0;
    bool success = imp->appendChild(newChild, ec, true );
    if (ec) {
        V8Proxy::setDOMException(ec);
        return v8::Handle<v8::Value>();
    }
    if (success)
        return args[0];
    return v8::Null();
}

} // namespace WebCore