W3C Document Copyright Notice and License

Note: This section is a copy of the W3C Document Notice and License and could be found at http://www.w3.org/Consortium/Legal/copyright-documents-19990405.

Copyright © 1994-2000 World Wide Web Consortium, (Massachusetts Institute of Technology, Institut National de Recherche en Informatique et en Automatique, Keio University). All Rights Reserved.

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W3C Software Copyright Notice and License

Note: This section is a copy of the W3C Software Copyright Notice and License and could be found at http://www.w3.org/Consortium/Legal/copyright-software-19980720

Copyright © 1994-2000 World Wide Web Consortium, (Massachusetts Institute of Technology, Institut National de Recherche en Informatique et en Automatique, Keio University). All Rights Reserved.

http://www.w3.org/Consortium/Legal/

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1.1. Introduction

A document may have one or more "views" associated with it, e.g., a computed view on a document after applying a CSS stylesheet, or multiple presentations (e.g., HTML Frame) of the same document in a client. That is, a view is some alternate representation of, or a presentation of, and associated with, a source document.

A view may be static, reflecting the state of the document when the view was created, or dynamic, reflecting changes in the target document as they occur, subsequent to the view being created. This Level of the DOM specification makes no statement about these behaviors.

This section defines an AbstractView interface which provides a base interface from which all such views shall derive. It defines an attribute which references the target document of the AbstractView. The only semantics of the AbstractView defined here create an association between a view and its target document.

There are no subinterfaces of AbstractView defined in the DOM Level 2.

However, AbstractView is defined in and used in this Level in two places:

• A Document may implement a DocumentView that has a default view attribute associated with it. This default view is typically dependent on the implementation (e.g., the browser frame rendering the document). The default view can be used in order to identify and/or associate a view with its target document (by testing object equality on the AbstractView or obtaining the DocumentView attribute).
• A UIEvent typically occurs upon a view of a Document (e.g., a mouse click on a browser frame rendering a particular Document instance). A UIEvent has an AbstractView associated with it which identifies both the particular (implementation-dependent) view in which the event occurs, and the target document the UIEvent is related to.

The interfaces found within this section are not mandatory. A DOM application may use the hasFeature(feature, version) method of the DOMImplementation interface with parameter values "Views" and "2.0" (respectively) to determine whether or not this module is supported by the implementation. In order to fully support this module, an implementation must also support the "Core" feature defined defined in the Document Object Model Level 2 Core specification [DOM Level 2 Core]. Please refer to additional information about conformance in the DOM Level 2 Core specification.

1.2. Interfaces

Interface AbstractView (introduced in DOM Level 2)

A base interface that all views shall derive from.

IDL Definition

// Introduced in DOM Level 2:
interface AbstractView {
  readonly attribute DocumentView     document;
};

Attributes

document of type DocumentView, readonly

The source DocumentView of which this is an AbstractView.

Interface DocumentView (introduced in DOM Level 2)

The DocumentView interface is implemented by Document objects in DOM implementations supporting DOM Views. It provides an attribute to retrieve the default view of a document.

IDL Definition

// Introduced in DOM Level 2:
interface DocumentView {
  readonly attribute AbstractView     defaultView;
};

Attributes

defaultView of type AbstractView, readonly

The default AbstractView for this Document, or null if none available.

D.1: Production Systems

This specification was written in XML. The HTML, OMG IDL, Java and ECMA Script bindings were all produced automatically.

Thanks to Joe English, author of cost, which was used as the basis for producing DOM Level 1. Thanks also to Gavin Nicol, who wrote the scripts which run on top of cost. Arnaud Le Hors and Philippe Le Hégaret maintained the scripts.

For DOM Level 2, we used Xerces as the basis DOM implementation and wish to thank the authors. Philippe Le Hégaret and Arnaud Le Hors wrote the Java programs which are the DOM application.

Thanks also to Jan Kärrman, author of html2ps, which we use in creating the PostScript version of the specification.

E.1: Normative references

DOM Level 2 Core

W3C (World Wide Web Consortium) Document Object Model Level 2 Core Specification, November 2000. Available at http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113

ECMAScript

ECMA (European Computer Manufacturers Association) ECMAScript Language Specification. Available at http://www.ecma.ch/ecma1/STAND/ECMA-262.HTM

Java

Sun Microsystems Inc. The Java Language Specification, James Gosling, Bill Joy, and Guy Steele, September 1996. Available at http://java.sun.com/docs/books/jls

OMGIDL

OMG (Object Management Group) IDL (Interface Definition Language) defined in The Common Object Request Broker: Architecture and Specification, version 2.3.1, October 1999. Available from http://www.omg.org/