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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 * this declaration are no longer valid.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 1.4, 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);

}