/*
 * 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.DOMException;
import org.w3c.dom.stylesheets.MediaList;

/**
 * The <code>CSSMediaRule</code> interface represents a
 * 
 * @media rule in a CSS style sheet. A <code>@media</code> rule can be used to delimit style rules for specific media
 *        types.
 *        <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 CSSMediaRule extends CSSRule {
	/**
	 * A list of media types for this rule.
	 */
	public MediaList getMedia();

	/**
	 * A list of all CSS rules contained within the media block.
	 */
	public CSSRuleList getCssRules();

	/**
	 * Used to insert a new rule into the media block.
	 * 
	 * @param rule
	 *            The parsable text representing the rule. For rule sets this
	 *            contains both the selector and the style declaration. For
	 *            at-rules, this specifies both the at-identifier and the rule
	 *            content.
	 * @param index
	 *            The index within the media block's rule collection of the
	 *            rule before which to insert the specified rule. If the
	 *            specified index is equal to the length of the media blocks's
	 *            rule collection, the rule will be added to the end of the
	 *            media block.
	 * @return The index within the media block's rule collection of the newly
	 *         inserted rule.
	 * @exception DOMException
	 *                HIERARCHY_REQUEST_ERR: Raised if the rule cannot be
	 *                inserted at the specified index, e.g., if an
	 *                <code>@import</code> rule is inserted after a standard rule set or other
	 *         at-rule. <br>
	 *         INDEX_SIZE_ERR: Raised if the specified index is not a valid
	 *         insertion point. <br>
	 *         NO_MODIFICATION_ALLOWED_ERR: Raised if this media rule is
	 *         readonly. <br>
	 *         SYNTAX_ERR: Raised if the specified rule has a syntax error and
	 *         is unparsable.
	 */
	public int insertRule(String rule, int index) throws DOMException;

	/**
	 * Used to delete a rule from the media block.
	 * 
	 * @param index
	 *            The index within the media block's rule collection of the
	 *            rule to remove.
	 * @exception DOMException
	 *                INDEX_SIZE_ERR: Raised if the specified index does not
	 *                correspond to a rule in the media rule list. <br>
	 *                NO_MODIFICATION_ALLOWED_ERR: Raised if this media rule
	 *                is readonly.
	 */
	public void deleteRule(int index) throws DOMException;

}