1 /*
2 * Copyright (c) 2000 World Wide Web Consortium,
3 * (Massachusetts Institute of Technology, Institut National de
4 * Recherche en Informatique et en Automatique, Keio University). All
5 * Rights Reserved. This program is distributed under the W3C's Software
6 * Intellectual Property License. This program is distributed in the
7 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
8 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
9 * PURPOSE.
10 * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
11 */
13 package org.w3c.dom.css;
15 import org.w3c.dom.stylesheets.DocumentStyle;
16 import org.w3c.dom.Element;
18 /**
19 * This interface represents a document with a CSS view.
20 * <p> The <code>getOverrideStyle</code> method provides a mechanism through
21 * which a DOM author could effect immediate change to the style of an
22 * element without modifying the explicitly linked style sheets of a
23 * document or the inline style of elements in the style sheets. This style
24 * sheet comes after the author style sheet in the cascade algorithm and is
25 * called override style sheet. The override style sheet takes precedence
26 * over author style sheets. An "!important" declaration still takes
27 * precedence over a normal declaration. Override, author, and user style
28 * sheets all may contain "!important" declarations. User "!important" rules
29 * take precedence over both override and author "!important" rules, and
30 * override "!important" rules take precedence over author "!important"
31 * rules.
32 * <p> The expectation is that an instance of the <code>DocumentCSS</code>
33 * interface can be obtained by using binding-specific casting methods on an
34 * instance of the <code>Document</code> interface.
35 * <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>.
36 * @since DOM Level 2
37 */
38 public interface DocumentCSS extends DocumentStyle {
39 /**
40 * This method is used to retrieve the override style declaration for a
41 * specified element and a specified pseudo-element.
42 * @param elt The element whose style is to be modified. This parameter
43 * cannot be null.
44 * @param pseudoElt The pseudo-element or <code>null</code> if none.
45 * @return The override style declaration.
46 */
47 public CSSStyleDeclaration getOverrideStyle(Element elt,
48 String pseudoElt);
50 }