tdelibs/khtml/ecma/kjs_traversal.cpp

328 lines
11 KiB

// -*- c-basic-offset: 2 -*-
/*
* This file is part of the KDE libraries
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "kjs_traversal.h"
#include "kjs_traversal.lut.h"
#include "kjs_proxy.h"
#include <dom/dom_node.h>
#include <xml/dom_nodeimpl.h>
#include <xml/dom_docimpl.h>
#include <khtmlview.h>
#include <khtml_part.h>
#include <kdebug.h>
namespace KJS {
// -------------------------------------------------------------------------
const ClassInfo DOMNodeIterator::info = { "NodeIterator", 0, &DOMNodeIteratorTable, 0 };
/*
@begin DOMNodeIteratorTable 5
root DOMNodeIterator::Root DontDelete|ReadOnly
whatToShow DOMNodeIterator::WhatToShow DontDelete|ReadOnly
filter DOMNodeIterator::Filter DontDelete|ReadOnly
expandEntityReferences DOMNodeIterator::ExpandEntityReferences DontDelete|ReadOnly
@end
@begin DOMNodeIteratorProtoTable 3
nextNode DOMNodeIterator::NextNode DontDelete|Function 0
previousNode DOMNodeIterator::PreviousNode DontDelete|Function 0
detach DOMNodeIterator::Detach DontDelete|Function 0
@end
*/
KJS_DEFINE_PROTOTYPE(DOMNodeIteratorProto)
IMPLEMENT_PROTOFUNC_DOM(DOMNodeIteratorProtoFunc)
KJS_IMPLEMENT_PROTOTYPE("DOMNodeIterator", DOMNodeIteratorProto,DOMNodeIteratorProtoFunc)
DOMNodeIterator::DOMNodeIterator(ExecState *exec, DOM::NodeIterator ni)
: DOMObject(DOMNodeIteratorProto::self(exec)), nodeIterator(ni) {}
DOMNodeIterator::~DOMNodeIterator()
{
ScriptInterpreter::forgetDOMObject(nodeIterator.handle());
}
Value DOMNodeIterator::tryGet(ExecState *exec, const Identifier &p) const
{
return DOMObjectLookupGetValue<DOMNodeIterator,DOMObject>(exec,p,&DOMNodeIteratorTable,this);
}
Value DOMNodeIterator::getValueProperty(ExecState *exec, int token) const
{
DOM::NodeIterator ni(nodeIterator);
switch (token) {
case Root:
return getDOMNode(exec,ni.root());
case WhatToShow:
return Number(ni.whatToShow());
case Filter:
return getDOMNodeFilter(exec,ni.filter());
case ExpandEntityReferences:
return Boolean(ni.expandEntityReferences());
default:
kdDebug(6070) << "WARNING: Unhandled token in DOMNodeIterator::getValueProperty : " << token << endl;
return Value();
}
}
Value DOMNodeIteratorProtoFunc::tryCall(ExecState *exec, Object &thisObj, const List &)
{
KJS_CHECK_THIS( KJS::DOMNodeIterator, thisObj );
DOM::NodeIterator nodeIterator = static_cast<DOMNodeIterator *>(thisObj.imp())->toNodeIterator();
switch (id) {
case DOMNodeIterator::PreviousNode:
return getDOMNode(exec,nodeIterator.previousNode());
case DOMNodeIterator::NextNode:
return getDOMNode(exec,nodeIterator.nextNode());
case DOMNodeIterator::Detach:
nodeIterator.detach();
return Undefined();
}
return Undefined();
}
Value getDOMNodeIterator(ExecState *exec, DOM::NodeIterator ni)
{
return cacheDOMObject<DOM::NodeIterator, DOMNodeIterator>(exec, ni);
}
// -------------------------------------------------------------------------
const ClassInfo NodeFilterConstructor::info = { "NodeFilterConstructor", 0, &NodeFilterConstructorTable, 0 };
/*
@begin NodeFilterConstructorTable 17
FILTER_ACCEPT DOM::NodeFilter::FILTER_ACCEPT DontDelete|ReadOnly
FILTER_REJECT DOM::NodeFilter::FILTER_REJECT DontDelete|ReadOnly
FILTER_SKIP DOM::NodeFilter::FILTER_SKIP DontDelete|ReadOnly
SHOW_ALL DOM::NodeFilter::SHOW_ALL DontDelete|ReadOnly
SHOW_ELEMENT DOM::NodeFilter::SHOW_ELEMENT DontDelete|ReadOnly
SHOW_ATTRIBUTE DOM::NodeFilter::SHOW_ATTRIBUTE DontDelete|ReadOnly
SHOW_TEXT DOM::NodeFilter::SHOW_TEXT DontDelete|ReadOnly
SHOW_CDATA_SECTION DOM::NodeFilter::SHOW_CDATA_SECTION DontDelete|ReadOnly
SHOW_ENTITY_REFERENCE DOM::NodeFilter::SHOW_ENTITY_REFERENCE DontDelete|ReadOnly
SHOW_ENTITY DOM::NodeFilter::SHOW_ENTITY DontDelete|ReadOnly
SHOW_PROCESSING_INSTRUCTION DOM::NodeFilter::SHOW_PROCESSING_INSTRUCTION DontDelete|ReadOnly
SHOW_COMMENT DOM::NodeFilter::SHOW_COMMENT DontDelete|ReadOnly
SHOW_DOCUMENT DOM::NodeFilter::SHOW_DOCUMENT DontDelete|ReadOnly
SHOW_DOCUMENT_TYPE DOM::NodeFilter::SHOW_DOCUMENT_TYPE DontDelete|ReadOnly
SHOW_DOCUMENT_FRAGMENT DOM::NodeFilter::SHOW_DOCUMENT_FRAGMENT DontDelete|ReadOnly
SHOW_NOTATION DOM::NodeFilter::SHOW_NOTATION DontDelete|ReadOnly
@end
*/
NodeFilterConstructor::NodeFilterConstructor(ExecState* exec)
: DOMObject(exec->interpreter()->builtinObjectPrototype())
{
}
Value NodeFilterConstructor::tryGet(ExecState *exec, const Identifier &p) const
{
return DOMObjectLookupGetValue<NodeFilterConstructor,DOMObject>(exec,p,&NodeFilterConstructorTable,this);
}
Value NodeFilterConstructor::getValueProperty(ExecState *, int token) const
{
// We use the token as the value to return directly
return Number(token);
}
Value getNodeFilterConstructor(ExecState *exec)
{
return cacheGlobalObject<NodeFilterConstructor>(exec, "[[nodeFilter.constructor]]");
}
// -------------------------------------------------------------------------
const ClassInfo DOMNodeFilter::info = { "NodeFilter", 0, 0, 0 };
/*
@begin DOMNodeFilterProtoTable 1
acceptNode DOMNodeFilter::AcceptNode DontDelete|Function 0
@end
*/
KJS_DEFINE_PROTOTYPE(DOMNodeFilterProto)
IMPLEMENT_PROTOFUNC_DOM(DOMNodeFilterProtoFunc)
KJS_IMPLEMENT_PROTOTYPE("DOMNodeFilter",DOMNodeFilterProto,DOMNodeFilterProtoFunc)
DOMNodeFilter::DOMNodeFilter(ExecState *exec, DOM::NodeFilter nf)
: DOMObject(DOMNodeFilterProto::self(exec)), nodeFilter(nf) {}
DOMNodeFilter::~DOMNodeFilter()
{
ScriptInterpreter::forgetDOMObject(nodeFilter.handle());
}
Value DOMNodeFilterProtoFunc::tryCall(ExecState *exec, Object &thisObj, const List &args)
{
KJS_CHECK_THIS( KJS::DOMNodeFilter, thisObj );
DOM::NodeFilter nodeFilter = static_cast<DOMNodeFilter *>(thisObj.imp())->toNodeFilter();
switch (id) {
case DOMNodeFilter::AcceptNode:
return Number(nodeFilter.acceptNode(toNode(args[0])));
}
return Undefined();
}
Value getDOMNodeFilter(ExecState *exec, DOM::NodeFilter nf)
{
return cacheDOMObject<DOM::NodeFilter, DOMNodeFilter>(exec, nf);
}
// -------------------------------------------------------------------------
const ClassInfo DOMTreeWalker::info = { "TreeWalker", 0, &DOMTreeWalkerTable, 0 };
/*
@begin DOMTreeWalkerTable 5
root DOMTreeWalker::Root DontDelete|ReadOnly
whatToShow DOMTreeWalker::WhatToShow DontDelete|ReadOnly
filter DOMTreeWalker::Filter DontDelete|ReadOnly
expandEntityReferences DOMTreeWalker::ExpandEntityReferences DontDelete|ReadOnly
currentNode DOMTreeWalker::CurrentNode DontDelete
@end
@begin DOMTreeWalkerProtoTable 7
parentNode DOMTreeWalker::ParentNode DontDelete|Function 0
firstChild DOMTreeWalker::FirstChild DontDelete|Function 0
lastChild DOMTreeWalker::LastChild DontDelete|Function 0
previousSibling DOMTreeWalker::PreviousSibling DontDelete|Function 0
nextSibling DOMTreeWalker::NextSibling DontDelete|Function 0
previousNode DOMTreeWalker::PreviousNode DontDelete|Function 0
nextNode DOMTreeWalker::NextNode DontDelete|Function 0
@end
*/
KJS_DEFINE_PROTOTYPE(DOMTreeWalkerProto)
IMPLEMENT_PROTOFUNC_DOM(DOMTreeWalkerProtoFunc)
KJS_IMPLEMENT_PROTOTYPE("DOMTreeWalker", DOMTreeWalkerProto,DOMTreeWalkerProtoFunc)
DOMTreeWalker::DOMTreeWalker(ExecState *exec, DOM::TreeWalker tw)
: DOMObject(DOMTreeWalkerProto::self(exec)), treeWalker(tw) {}
DOMTreeWalker::~DOMTreeWalker()
{
ScriptInterpreter::forgetDOMObject(treeWalker.handle());
}
Value DOMTreeWalker::tryGet(ExecState *exec, const Identifier &p) const
{
return DOMObjectLookupGetValue<DOMTreeWalker,DOMObject>(exec,p,&DOMTreeWalkerTable,this);
}
Value DOMTreeWalker::getValueProperty(ExecState *exec, int token) const
{
DOM::TreeWalker tw(treeWalker);
switch (token) {
case Root:
return getDOMNode(exec,tw.root());
case WhatToShow:
return Number(tw.whatToShow());
case Filter:
return getDOMNodeFilter(exec,tw.filter());
case ExpandEntityReferences:
return Boolean(tw.expandEntityReferences());
case CurrentNode:
return getDOMNode(exec,tw.currentNode());
default:
kdDebug(6070) << "WARNING: Unhandled token in DOMTreeWalker::getValueProperty : " << token << endl;
return Value();
}
}
void DOMTreeWalker::tryPut(ExecState *exec, const Identifier &propertyName,
const Value& value, int attr)
{
if (propertyName == "currentNode") {
treeWalker.setCurrentNode(toNode(value));
}
else
ObjectImp::put(exec, propertyName, value, attr);
}
Value DOMTreeWalkerProtoFunc::tryCall(ExecState *exec, Object &thisObj, const List &)
{
KJS_CHECK_THIS( KJS::DOMTreeWalker, thisObj );
DOM::TreeWalker treeWalker = static_cast<DOMTreeWalker *>(thisObj.imp())->toTreeWalker();
switch (id) {
case DOMTreeWalker::ParentNode:
return getDOMNode(exec,treeWalker.parentNode());
case DOMTreeWalker::FirstChild:
return getDOMNode(exec,treeWalker.firstChild());
case DOMTreeWalker::LastChild:
return getDOMNode(exec,treeWalker.lastChild());
case DOMTreeWalker::PreviousSibling:
return getDOMNode(exec,treeWalker.previousSibling());
case DOMTreeWalker::NextSibling:
return getDOMNode(exec,treeWalker.nextSibling());
case DOMTreeWalker::PreviousNode:
return getDOMNode(exec,treeWalker.previousSibling());
case DOMTreeWalker::NextNode:
return getDOMNode(exec,treeWalker.nextNode());
}
return Undefined();
}
Value getDOMTreeWalker(ExecState *exec, DOM::TreeWalker tw)
{
return cacheDOMObject<DOM::TreeWalker, DOMTreeWalker>(exec, tw);
}
DOM::NodeFilter toNodeFilter(const Value& val)
{
Object obj = Object::dynamicCast(val);
if (!obj.isValid() || !obj.inherits(&DOMNodeFilter::info))
return DOM::NodeFilter();
const DOMNodeFilter *dobj = static_cast<const DOMNodeFilter*>(obj.imp());
return dobj->toNodeFilter();
}
// -------------------------------------------------------------------------
JSNodeFilter::JSNodeFilter(Object & _filter) : DOM::CustomNodeFilter(), filter( _filter )
{
}
JSNodeFilter::~JSNodeFilter()
{
}
short JSNodeFilter::acceptNode(const DOM::Node &n)
{
KHTMLView *view = static_cast<DOM::DocumentImpl *>( n.handle()->docPtr() )->view();
if (!view)
return DOM::NodeFilter::FILTER_REJECT;
KHTMLPart *part = view->part();
KJSProxy *proxy = part->jScript();
if (proxy) {
ExecState *exec = proxy->interpreter()->globalExec();
Object acceptNodeFunc = Object::dynamicCast( filter.get(exec, "acceptNode") );
if (!acceptNodeFunc.isNull() && acceptNodeFunc.implementsCall()) {
List args;
args.append(getDOMNode(exec,n));
Value result = acceptNodeFunc.call(exec,filter,args);
if (exec->hadException())
exec->clearException();
return result.toInteger(exec);
}
}
return DOM::NodeFilter::FILTER_REJECT;
}
} //namespace KJS