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/*
* Copyright (C) 2007 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "JSHTMLElement.h"
#include "CustomElementDefinitions.h"
#include "Document.h"
#include "HTMLFormElement.h"
#include <runtime/InternalFunction.h>
#include <runtime/JSWithScope.h>
namespace WebCore {
using namespace JSC;
#if ENABLE(CUSTOM_ELEMENTS)
EncodedJSValue JSC_HOST_CALL constructJSHTMLElement(ExecState* state)
{
auto* jsConstructor = jsCast<DOMConstructorObject*>(state->callee());
auto* context = jsConstructor->scriptExecutionContext();
if (!is<Document>(context))
return throwConstructorDocumentUnavailableError(*state, "HTMLElement");
auto& document = downcast<Document>(*context);
auto* definitions = document.customElementDefinitions();
if (!definitions)
return throwVMTypeError(state, "new.target is not a valid custom element constructor");
VM& vm = state->vm();
JSValue newTargetValue = state->thisValue();
JSObject* newTarget = newTargetValue.getObject();
QualifiedName fullName = definitions->findName(newTarget);
if (fullName == nullQName()) {
if (UNLIKELY(state->argumentCount() < 1))
return throwVMError(state, createNotEnoughArgumentsError(state));
}
if (state->argumentCount()) {
String name;
if (!state->argument(0).getString(state, name))
return throwVMTypeError(state, "The first argument is not a valid custom element name");
auto* interface = definitions->findInterface(name);
if (!interface)
return throwVMTypeError(state, "The first argument is not a valid custom element name");
if (newTarget != interface->constructor())
return throwVMTypeError(state, "Attempt to construct a custom element with a wrong interface");
fullName = QualifiedName(nullAtom, name, HTMLNames::xhtmlNamespaceURI);
}
auto* globalObject = jsConstructor->globalObject();
Structure* baseStructure = getDOMStructure<JSHTMLElement>(vm, *globalObject);
auto* newElementStructure = InternalFunction::createSubclassStructure(state, newTargetValue, baseStructure);
if (UNLIKELY(state->hadException()))
return JSValue::encode(jsUndefined());
Ref<HTMLElement> element = HTMLElement::create(fullName, document);
auto* jsElement = JSHTMLElement::create(newElementStructure, globalObject, element.get());
cacheWrapper(globalObject->world(), element.ptr(), jsElement);
return JSValue::encode(jsElement);
}
#endif
JSScope* JSHTMLElement::pushEventHandlerScope(ExecState* exec, JSScope* scope) const
{
HTMLElement& element = wrapped();
// The document is put on first, fall back to searching it only after the element and form.
scope = JSWithScope::create(exec, asObject(toJS(exec, globalObject(), &element.document())), scope);
// The form is next, searched before the document, but after the element itself.
if (HTMLFormElement* form = element.form())
scope = JSWithScope::create(exec, asObject(toJS(exec, globalObject(), form)), scope);
// The element is on top, searched first.
return JSWithScope::create(exec, asObject(toJS(exec, globalObject(), &element)), scope);
}
} // namespace WebCore
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