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/*
 * This file is available under and governed by the GNU General Public
 * License version 2 only, as published by the Free Software Foundation.
 * However, the following notice accompanied the original version of this
 * file and, per its terms, should not be removed:
 *
 * Copyright (c) 2000 World Wide Web Consortium,
 * (Massachusetts Institute of Technology, Institut National de
 * Recherche en Informatique et en Automatique, Keio University). All
 * Rights Reserved. This program is distributed under the W3C's Software
 * Intellectual Property License. This program 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 W3C License http://www.w3.org/Consortium/Legal/ for more details.
 */

package org.w3c.dom.css;

import org.w3c.dom.Element;
import org.w3c.dom.views.AbstractView;

/**
 *  This interface represents a CSS view. The <code>getComputedStyle</code>
 * method provides a read only access to the computed values of an element.
 * <p> The expectation is that an instance of the <code>ViewCSS</code>
 * interface can be obtained by using binding-specific casting methods on an
 * instance of the <code>AbstractView</code> interface.
 * <p> Since a computed style is related to an <code>Element</code> node, if
 * this element is removed from the document, the associated
 * <code>CSSStyleDeclaration</code> and <code>CSSValue</code> related to
 * this declaration are no longer valid.
 * <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Style-20001113'>Document Object Model (DOM) Level 2 Style Specification</a>.
 * @since DOM Level 2
 */
public interface ViewCSS extends AbstractView {
    /**
     *  This method is used to get the computed style as it is defined in [<a href='http://www.w3.org/TR/1998/REC-CSS2-19980512'>CSS2</a>].
     * @param elt  The element whose style is to be computed. This parameter
     *   cannot be null.
     * @param pseudoElt  The pseudo-element or <code>null</code> if none.
     * @return  The computed style. The <code>CSSStyleDeclaration</code> is
     *   read-only and contains only absolute values.
     */
    public CSSStyleDeclaration getComputedStyle(Element elt,
                                                String pseudoElt);

}