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JSNodeCustom.cpp 10.87 KiB
/*
* Copyright (C) 2007, 2009, 2010 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 "JSDOMBinding.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 {
static inline bool isAttrFrameSrc(Element *element, const String& name){
return element && (element->hasTagName(HTMLNames::iframeTag) || element->hasTagName(HTMLNames::frameTag)) && equalIgnoringCase(name, "src");
}
void JSNode::setNodeValue(JSC::ExecState* exec, JSC::JSValue value)
{
Node* imp = static_cast<Node*>(impl());
String nodeValue = valueToStringWithNullCheck(exec, value);
if (imp->nodeType() == Node::ATTRIBUTE_NODE) {
Element* ownerElement = static_cast<Attr*>(impl())->ownerElement();
if (ownerElement && !allowSettingSrcToJavascriptURL(exec, ownerElement, imp->nodeName(), nodeValue))
return;
}
ExceptionCode ec = 0;
imp->setNodeValue(nodeValue, ec);
setDOMException(exec, ec);
}
void JSNode::setTextContent(JSC::ExecState* exec, JSC::JSValue value)
{
Node* imp = static_cast<Node*>(impl());
String nodeValue = valueToStringWithNullCheck(exec, value);
if (imp->nodeType() == Node::ATTRIBUTE_NODE) {
Element* ownerElement = static_cast<Attr*>(impl())->ownerElement();
if (ownerElement && !allowSettingSrcToJavascriptURL(exec, ownerElement, imp->nodeName(), nodeValue))
return;
}
ExceptionCode ec = 0;
imp->setTextContent(nodeValue, ec);
setDOMException(exec, ec);
}
JSValue JSNode::insertBefore(ExecState* exec, const ArgList& args)
{
Node* imp = static_cast<Node*>(impl());
if (imp->nodeType() == Node::ATTRIBUTE_NODE && isAttrFrameSrc(static_cast<Attr*>(impl())->ownerElement(), imp->nodeName())) {
setDOMException(exec, NOT_SUPPORTED_ERR);
return jsNull();
}
ExceptionCode ec = 0;
bool ok = imp->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)
{
Node* imp = static_cast<Node*>(impl());
if (imp->nodeType() == Node::ATTRIBUTE_NODE && isAttrFrameSrc(static_cast<Attr*>(impl())->ownerElement(), imp->nodeName())) {
setDOMException(exec, NOT_SUPPORTED_ERR);
return jsNull();
}
ExceptionCode ec = 0;
bool ok = imp->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)
{ Node* imp = static_cast<Node*>(impl());
if (imp->nodeType() == Node::ATTRIBUTE_NODE && isAttrFrameSrc(static_cast<Attr*>(impl())->ownerElement(), imp->nodeName())) {
setDOMException(exec, NOT_SUPPORTED_ERR);
return jsNull();
}
ExceptionCode ec = 0;
bool ok = imp->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)
{
Node* imp = static_cast<Node*>(impl());
if (imp->nodeType() == Node::ATTRIBUTE_NODE && isAttrFrameSrc(static_cast<Attr*>(impl())->ownerElement(), imp->nodeName())) {
setDOMException(exec, NOT_SUPPORTED_ERR);
return jsNull();
}
ExceptionCode ec = 0;
bool ok = imp->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)
{
JSValue listener = args.at(1);
if (!listener.isObject())
return jsUndefined();
impl()->addEventListener(args.at(0).toString(exec), JSEventListener::create(asObject(listener), this, false, currentWorld(exec)), args.at(2).toBoolean(exec));
return jsUndefined();
}
JSValue JSNode::removeEventListener(ExecState* exec, const ArgList& args)
{
JSValue listener = args.at(1);
if (!listener.isObject())
return jsUndefined();
impl()->removeEventListener(args.at(0).toString(exec), JSEventListener::create(asObject(listener), this, false, currentWorld(exec)).get(), args.at(2).toBoolean(exec));
return jsUndefined();
}
void JSNode::pushEventHandlerScope(ExecState*, ScopeChain&) const
{
}
void JSNode::markChildren(MarkStack& markStack)
{
Base::markChildren(markStack);
Node* node = m_impl.get();
node->markJSEventListeners(markStack);
// 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()) {
if (Document* doc = node->ownerDocument())
markDOMNodeWrapper(markStack, doc, doc);
return;
}
// This is a node outside the document.
// Find the the root, and the highest ancestor with a wrapper.
Node* root = node;
Node* outermostNodeWithWrapper = node;
for (Node* current = m_impl.get(); current; current = current->parentNode()) {
root = current;
if (hasCachedDOMNodeWrapperUnchecked(current->document(), current))
outermostNodeWithWrapper = current;
}
// Only nodes that have no ancestors with wrappers mark the subtree. In the common
// case, the root of the detached subtree has a wrapper, so the tree will only
// get marked once. Nodes that aren't outermost need to mark the outermost
// in case it is otherwise unreachable.
// FIXME: In the non-common case of root not having a wrapper, this is still an O(n^2) algorithm,
// as we will traverse the whole tree as many times as there are nodes with wrappers in it.
if (node != outermostNodeWithWrapper) {
markDOMNodeWrapper(markStack, m_impl->document(), outermostNodeWithWrapper);
return;
}
// Mark the whole tree subtree.
for (Node* nodeToMark = root; nodeToMark; nodeToMark = nodeToMark->traverseNextNode())
markDOMNodeWrapper(markStack, m_impl->document(), nodeToMark);
}
static ALWAYS_INLINE JSValue createWrapperInline(ExecState* exec, JSDOMGlobalObject* globalObject, Node* node)
{
ASSERT(node);
ASSERT(!getCachedDOMNodeWrapper(exec, node->document(), node));
JSNode* wrapper;
switch (node->nodeType()) {
case Node::ELEMENT_NODE:
if (node->isHTMLElement())
wrapper = createJSHTMLWrapper(exec, globalObject, static_cast<HTMLElement*>(node));
#if ENABLE(SVG)
else if (node->isSVGElement())
wrapper = createJSSVGWrapper(exec, globalObject, static_cast<SVGElement*>(node));
#endif
else
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, Element, node);
break;
case Node::ATTRIBUTE_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, Attr, node);
break;
case Node::TEXT_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, Text, node);
break;
case Node::CDATA_SECTION_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, CDATASection, node);
break;
case Node::ENTITY_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, Entity, node);
break;
case Node::PROCESSING_INSTRUCTION_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, ProcessingInstruction, node);
break;
case Node::COMMENT_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, Comment, node);
break;
case Node::DOCUMENT_NODE:
// we don't want to cache the document itself in the per-document dictionary
return toJS(exec, globalObject, static_cast<Document*>(node));
case Node::DOCUMENT_TYPE_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, DocumentType, node);
break;
case Node::NOTATION_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, Notation, node);
break; case Node::DOCUMENT_FRAGMENT_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, DocumentFragment, node);
break;
case Node::ENTITY_REFERENCE_NODE:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, EntityReference, node);
break;
default:
wrapper = CREATE_DOM_NODE_WRAPPER(exec, globalObject, Node, node);
}
return wrapper;
}
JSValue createWrapper(ExecState* exec, JSDOMGlobalObject* globalObject, Node* node)
{
return createWrapperInline(exec, globalObject, node);
}
JSValue toJSNewlyCreated(ExecState* exec, JSDOMGlobalObject* globalObject, Node* node)
{
if (!node)
return jsNull();
return createWrapperInline(exec, globalObject, node);
}
} // namespace WebCore