DocumentCSS


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   */
12  
13  package org.w3c.dom.css;
14  
15  import org.w3c.dom.stylesheets.DocumentStyle;
16  import org.w3c.dom.Element  ;
17  
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);
49  
50  }
51
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