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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 COMPUTER, 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 COMPUTER, 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 "JSNode.h"
#include "Attr.h"
#include "CDATASection.h"
#include "Comment.h"
#include "Document.h"
#include "DocumentFragment.h"
#include "DocumentType.h"
#include "Entity.h"
#include "EntityReference.h"
#include "HTMLElement.h"
#include "JSAttr.h"
#include "JSCDATASection.h"
#include "JSComment.h"
#include "JSDocument.h"
#include "JSDocumentFragment.h"
#include "JSDocumentType.h"
#include "JSEntity.h"
#include "JSEntityReference.h"
#include "JSEventListener.h"
#include "JSHTMLElement.h"
#include "JSHTMLElementWrapperFactory.h"
#include "JSNotation.h"
#include "JSProcessingInstruction.h"
#include "JSText.h"
#include "Node.h"
#include "Notation.h"
#include "ProcessingInstruction.h"
#include "RegisteredEventListener.h"
#include "Text.h"
#include <wtf/PassRefPtr.h>
#include <wtf/RefPtr.h>
#if ENABLE(SVG)
#include "JSSVGElementWrapperFactory.h"
#include "SVGElement.h"
#endif
using namespace JSC;
namespace WebCore {
typedef int ExpectionCode;
JSValue JSNode::insertBefore(ExecState* exec, const ArgList& args)
{
ExceptionCode ec = 0;
bool ok = impl()->insertBefore(toNode(args.at(0)), toNode(args.at(1)), ec, true);
setDOMException(exec, ec);
if (ok)
return args.at(0);
return jsNull();
}
JSValue JSNode::replaceChild(ExecState* exec, const ArgList& args)
{
ExceptionCode ec = 0;
bool ok = impl()->replaceChild(toNode(args.at(0)), toNode(args.at(1)), ec, true);
setDOMException(exec, ec);
if (ok)
return args.at(1);
return jsNull();
}
JSValue JSNode::removeChild(ExecState* exec, const ArgList& args)
{
ExceptionCode ec = 0;
bool ok = impl()->removeChild(toNode(args.at(0)), ec);
setDOMException(exec, ec);
if (ok)
return args.at(0);
return jsNull();
}
JSValue JSNode::appendChild(ExecState* exec, const ArgList& args)
{
ExceptionCode ec = 0;
bool ok = impl()->appendChild(toNode(args.at(0)), ec, true);
setDOMException(exec, ec);
if (ok)
return args.at(0);
return jsNull();
}
JSValue JSNode::addEventListener(ExecState* exec, const ArgList& args)
{
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(impl()->scriptExecutionContext());
if (!globalObject)
return jsUndefined();
if (RefPtr<JSEventListener> listener = globalObject->findOrCreateJSEventListener(args.at(1)))
impl()->addEventListener(args.at(0).toString(exec), listener.release(), args.at(2).toBoolean(exec));
return jsUndefined();
}
JSValue JSNode::removeEventListener(ExecState* exec, const ArgList& args)
{
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(impl()->scriptExecutionContext());
if (!globalObject)
return jsUndefined();
if (JSEventListener* listener = globalObject->findJSEventListener(args.at(1)))
impl()->removeEventListener(args.at(0).toString(exec), listener, args.at(2).toBoolean(exec));
return jsUndefined();
}
void JSNode::pushEventHandlerScope(ExecState*, ScopeChain&) const
{
}
void JSNode::mark()
{
ASSERT(!marked());
Node* node = m_impl.get();
// Nodes in the document are kept alive by JSDocument::mark, so, if we're in
// the document, we need to mark the document, but we don't need to explicitly
// mark any other nodes.
if (node->inDocument()) {
DOMObject::mark();
markEventListeners(node->eventListeners());
if (Document* doc = node->ownerDocument())
if (DOMObject* docWrapper = getCachedDOMObjectWrapper(*Heap::heap(this)->globalData(), doc))
if (!docWrapper->marked())
docWrapper->mark();
return;
}
// This is a node outside the document, so find the root of the tree it is in,
// and start marking from there.
Node* root = node;
for (Node* current = m_impl.get(); current; current = current->parentNode())
root = current;
// Nodes in a subtree are marked by the tree's root, so, if the root is already
// marking the tree, we don't need to explicitly mark any other nodes.
if (root->inSubtreeMark()) {
DOMObject::mark();
markEventListeners(node->eventListeners());
return;
}
// Mark the whole tree subtree.
root->setInSubtreeMark(true);
for (Node* nodeToMark = root; nodeToMark; nodeToMark = nodeToMark->traverseNextNode()) {
JSNode* wrapper = getCachedDOMNodeWrapper(m_impl->document(), nodeToMark);
if (wrapper) {
if (!wrapper->marked())
wrapper->mark();
} else if (nodeToMark == node) {
// This is the case where the map from the document to wrappers has
// been cleared out, but a wrapper is being marked. For now, we'll
// let the rest of the tree of wrappers get collected, because we have
// no good way of finding them. Later we should test behavior of other
// browsers and see if we need to preserve other wrappers in this case.
if (!marked())
mark();
}
}
root->setInSubtreeMark(false);
// Double check that we actually ended up marked. This assert caught problems in the past.
ASSERT(marked());
}
static ALWAYS_INLINE JSValue createWrapper(ExecState* exec, Node* node)
{
ASSERT(node);
ASSERT(!getCachedDOMNodeWrapper(node->document(), node));
JSNode* wrapper;
switch (node->nodeType()) {
case Node::ELEMENT_NODE:
if (node->isHTMLElement())
wrapper = createJSHTMLWrapper(exec, static_cast<HTMLElement*>(node));
#if ENABLE(SVG)
else if (node->isSVGElement())
wrapper = createJSSVGWrapper(exec, static_cast<SVGElement*>(node));
#endif
else
wrapper = CREATE_DOM_NODE_WRAPPER(exec, Element, node);
break;
case Node::ATTRIBUTE_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, Attr, node);
break;
case Node::TEXT_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, Text, node);
break;
case Node::CDATA_SECTION_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, CDATASection, node);
break;
case Node::ENTITY_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, Entity, node);
break;
case Node::PROCESSING_INSTRUCTION_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, ProcessingInstruction, node);
break;
case Node::COMMENT_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, Comment, node);
break;
case Node::DOCUMENT_NODE:
// we don't want to cache the document itself in the per-document dictionary
return toJS(exec, static_cast<Document*>(node));
case Node::DOCUMENT_TYPE_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, DocumentType, node);
break;
case Node::NOTATION_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, Notation, node);
break;
case Node::DOCUMENT_FRAGMENT_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, DocumentFragment, node);
break;
case Node::ENTITY_REFERENCE_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, EntityReference, node);
break;
default:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, Node, node);
}
return wrapper;
}
JSValue toJSNewlyCreated(ExecState* exec, Node* node)
{
if (!node)
return jsNull();
return createWrapper(exec, node);
}
JSValue toJS(ExecState* exec, Node* node)
{
if (!node)
return jsNull();
JSNode* wrapper = getCachedDOMNodeWrapper(node->document(), node);
if (wrapper)
return wrapper;
return createWrapper(exec, node);
}
} // namespace WebCore
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