File indexing completed on 2023-10-01 04:03:21

 /*
  *  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
  */
 
 #ifndef _KJS_TRAVERSAL_H_
 #define _KJS_TRAVERSAL_H_
 
 #include "ecma/kjs_binding.h"
 #include "ecma/kjs_dom.h"
 #include "dom/dom2_traversal.h"
 
 namespace KJS
 {
 
 class DOMNodeIterator : public DOMObject
 {
 public:
     DOMNodeIterator(ExecState *exec, DOM::NodeIteratorImpl *ni);
     ~DOMNodeIterator();
     using KJS::JSObject::getOwnPropertySlot;
     bool getOwnPropertySlot(ExecState *exec, const Identifier &propertyName, PropertySlot &slot) override;
     JSValue *getValueProperty(ExecState *exec, int token) const;
     // no put - all read-only
     const ClassInfo *classInfo() const override
     {
         return &info;
     }
     static const ClassInfo info;
     enum { Filter, Root, WhatToShow, ExpandEntityReferences,
            NextNode, PreviousNode, Detach
          };
     DOM::NodeIteratorImpl *impl() const
     {
         return m_impl.get();
     }
 protected:
     SharedPtr<DOM::NodeIteratorImpl> m_impl;
 };
 
 // Constructor object NodeFilter
 class NodeFilterConstructor : public DOMObject
 {
 public:
     NodeFilterConstructor(ExecState *);
     using KJS::JSObject::getOwnPropertySlot;
     bool getOwnPropertySlot(ExecState *exec, const Identifier &propertyName, PropertySlot &slot) override;
     JSValue *getValueProperty(ExecState *exec, int token) const;
     // no put - all read-only
     const ClassInfo *classInfo() const override
     {
         return &info;
     }
     static const ClassInfo info;
 };
 
 class DOMTreeWalker : public DOMObject
 {
 public:
     DOMTreeWalker(ExecState *exec, DOM::TreeWalkerImpl *tw);
     ~DOMTreeWalker();
     using KJS::JSObject::getOwnPropertySlot;
     bool getOwnPropertySlot(ExecState *exec, const Identifier &propertyName, PropertySlot &slot) override;
     JSValue *getValueProperty(ExecState *exec, int token) const;
     void mark() override;
     using KJS::JSObject::put;
     virtual void put(ExecState *exec, const Identifier &propertyName,
                      JSValue *value, int attr = None) override;
     const ClassInfo *classInfo() const override
     {
         return &info;
     }
     static const ClassInfo info;
     enum { Root, WhatToShow, Filter, ExpandEntityReferences, CurrentNode,
            ParentNode, FirstChild, LastChild, PreviousSibling, NextSibling,
            PreviousNode, NextNode
          };
     DOM::TreeWalkerImpl *impl() const
     {
         return m_impl.get();
     }
 protected:
     SharedPtr<DOM::TreeWalkerImpl> m_impl;
 };
 
 JSValue *getDOMNodeIterator(ExecState *exec, DOM::NodeIteratorImpl *ni);
 JSValue *getNodeFilterConstructor(ExecState *exec);
 JSValue *getDOMNodeFilter(ExecState *exec, DOM::NodeFilterImpl *nf);
 JSValue *getDOMTreeWalker(ExecState *exec, DOM::TreeWalkerImpl *tw);
 
 /**
  * Convert an object to a NodeFilter. Returns a null Node if not possible.
  */
 DOM::NodeFilterImpl *toNodeFilter(JSValue *);
 
 class JSNodeFilter : public DOM::NodeFilterImpl
 {
 public:
     JSNodeFilter(JSObject *_filter);
     virtual ~JSNodeFilter();
 
     bool  isJSFilter() const override;
     short acceptNode(const DOM::Node &n, void *&bindingsException) override;
 
     void mark();
 
     JSObject *filter() const
     {
         return m_filter;
     }
 
     // Extracts a JSNodeFilter contained insode a DOM::NodeFilterImpl,
     // if any (or returns 0);
     static JSNodeFilter *fromDOMFilter(DOM::NodeFilterImpl *nf);
 protected:
     // The filter here can be either a function or
     // an object with the acceptNode property. We will use either one.
 
     // Memory management note: we expect the wrapper object to mark us.
     JSObject *m_filter;
 };
 
 } // namespace
 
 #endif