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AbstractXForms for HTML provides a set of attributes and script methods that can be used by the tags or elements of an HTML or XHTML web page to simplify the integration of data-intensive interactive processing capabilities from XForms. The semantics of the attributes are mapped to the rich XForms model-view-controller-connector architecture, thereby allowing web application authors a smoother, selective migration path to the higher-order behaviors available from the full element markup available in modules of XForms.

This document describes XForms for HTML, which provides a set of attributes and script methods encompassing a useful subset of XForms functionality and mapping that functionality to syntactic constructs that are familiar to authors of HTML and XHTML web pages. The intent of this module is to simplify the means by which web page authors gain access to the rich functionality available from the hybrid execution model of XForms, which combines declarative constructs with event-driven imperative processing. These attributes and script methods increase the initial consumability of XForms by allowing injection of rich semantics directly into the host language markup. In turn, the behaviors of the attributes and script methods are mapped to the XForms model-view-controller-connector architecture so that applications manifest behaviors consistent with having used XForms markup elements. This allows authors to gradually address greater application complexity as it arises in the software lifecycle by opportunistically, i.e. as the need arises, switching from the attributes and script methods of this specification to the corresponding XForms markup elements. This gradual adoption strategy is being further supported by the modularization of XForms into components that can be consumed incrementally by authors and implementers.

This specification defines a set of APIs and events for the Widgets 1.0 Family of Specifications that enable baseline functionality for widgets. The APIs and Events defined by this specification defines, amongst other things, the means to:access the metadata declared in a widget's configuration document, receive events related to changes in the view state of a widget, determine the locale under which a widget is currently running, be notified of events relating to the widget being updated, invoke a widget to open a URL on the system's default browser, requests the user's attention in a device independent manner, and check if any additional APIs requested via the configuration document's feature element have successfully loaded.

This specification defines a set of APIs and events for widgets that enable baseline functionality for widgets. Widgets are full-fledged client-side applications that are authored using Web standards. They are typically downloaded and installed on a client machine or device where they typically run as stand-alone applications outside of a Web browser. Examples range from simple clocks, stock tickers, news casters, games and weather forecasters, to complex applications that pull data from multiple sources to be "mashed-up" and presented to a user in some interesting and useful way

This specification is part of the Widgets 1.0 family of specifications, which together standardize widgets as a whole. The Widgets 1.0: Packaging and Configuration [Widgets-Packaging] standardizes a Zip-based packaging format, an XML-based configuration document format and a series of steps that user agents follow when processing and verifying various aspects of widgets. The Widgets 1.0: Digital Signature [Widgets-DigSig] specification defines a means for widgets to be digitally signed using a custom profile of the XML-Signature Syntax and Processing Specification. The Widgets: 1.0: Automatic Updates [Widgets-Updates] specification defines a version control model that allows widgets to be kept up-to-date over [HTTP].