/*
 * CDE - Common Desktop Environment
 *
 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
 *
 * These libraries and programs are free software; you can
 * redistribute them and/or modify them under the terms of the GNU
 * Lesser General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * These libraries and programs are distributed in the hope that
 * they will be useful, but WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE. See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with these librararies and programs; if not, write
 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
 * Floor, Boston, MA 02110-1301 USA
 */
/* $XConsortium: LinkProcess.h /main/1 1996/07/29 16:55:50 cde-hp $ */
// Copyright (c) 1994 James Clark
// See the file COPYING for copying permission.

#ifndef LinkProcess_INCLUDED
#define LinkProcess_INCLUDED 1
#ifdef __GNUG__
#pragma interface
#endif

#include "Lpd.h"
#include "IList.h"
#include "Link.h"
#include "Vector.h"
#include "Vector.h"
#include "Ptr.h"

#ifdef SP_NAMESPACE
namespace SP_NAMESPACE {
#endif

class Messenger;

struct SP_API LinkProcessOpenElement : public Link {
  LinkProcessOpenElement(const LinkSet *current, const SourceLinkRule &);
  LinkProcessOpenElement(const LinkSet *current);
  const LinkSet *current;
  const LinkSet *restore;
  const LinkSet *post;
  Boolean postRestore;
};

class SP_API LinkProcess {
public:
  LinkProcess();
  void init(const ConstPtr<ComplexLpd> &lpd);
  Boolean startElement(const ElementType *,
		       const AttributeList &attributes,
		       const Location &location,
		       Messenger &,
		       const AttributeList *&linkAttributes,
		       const ResultElementSpec *&resultElementSpec);
  void endElement();
  void uselink(const LinkSet *linkSet,
	       Boolean restore,
	       const Lpd *);
  virtual Boolean selectLinkRule(const Vector<const AttributeList *> &,
				 const Location &location,
				 size_t &selected);
  size_t nImpliedLinkRules() const;
  const ResultElementSpec &impliedLinkRule(size_t) const;
  const StringC &name() const;
  Boolean isExplicit() const;
  void clear();
  void swap(LinkProcess &);
private:
  LinkProcess(const LinkProcess &); // undefined
  void operator=(const LinkProcess &); // undefined

  IList<LinkProcessOpenElement> open_;
  ConstPtr<ComplexLpd> lpd_;
  Vector<ConstPtr<Lpd> > activeLpds_;
  Vector<const AttributeList *> linkAttributes_;
};

inline
const StringC &LinkProcess::name() const
{
  return lpd_->name();
}

inline
Boolean LinkProcess::isExplicit() const
{
  return lpd_->type() == Lpd::explicitLink;
}

#ifdef SP_NAMESPACE
}
#endif

#endif /* not LinkProcess_INCLUDED */