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 /**
  * This file is part of the DOM implementation for KDE.
  *
  * Copyright 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; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #include "dom/dom2_views.h"
 #include "dom/dom_exception.h"
 #include "dom/dom_doc.h"
 #include "xml/dom_elementimpl.h"
 #include "xml/dom2_viewsimpl.h"
 
 using namespace DOM;
 
 AbstractView::AbstractView()
 {
     impl = nullptr;
 }
 
 AbstractView::AbstractView(const AbstractView &other)
 {
     impl = other.impl;
     if (impl) {
         impl->ref();
     }
 }
 
 AbstractView::AbstractView(AbstractViewImpl *i)
 {
     impl = i;
     if (impl) {
         impl->ref();
     }
 }
 
 AbstractView::~AbstractView()
 {
     if (impl) {
         impl->deref();
     }
 }
 
 AbstractView &AbstractView::operator = (const AbstractView &other)
 {
     if (impl != other.impl) {
         if (impl) {
             impl->deref();
         }
         impl = other.impl;
         if (impl) {
             impl->ref();
         }
     }
     return *this;
 }
 
 Document AbstractView::document() const
 {
     if (!impl) {
         throw DOMException(DOMException::INVALID_STATE_ERR);
     }
 
     return impl->document();
 }
 
 CSSStyleDeclaration AbstractView::getComputedStyle(const Element &elt, const DOMString &pseudoElt)
 {
     if (!impl) {
         throw DOMException(DOMException::INVALID_STATE_ERR);
     }
 
     return impl->getComputedStyle(static_cast<ElementImpl *>(elt.handle()), pseudoElt.implementation());
 }
 
 AbstractViewImpl *AbstractView::handle() const
 {
     return impl;
 }
 
 bool AbstractView::isNull() const
 {
     return (impl == nullptr);
 }