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In computer science and web development, XML Events is a W3C standard [1] for handling events that occur in an XML document. These events are typically caused by users interacting with the web page using a device, such as a web browser on a personal computer or mobile phone.
An XML Event is the representation of some asynchronous occurrence (such as a mouse button click) that gets associated with a data element in an XML document. XML Events provides a static, syntactic binding to the DOM Events interface, allowing the event to be handled.
The XML Events standard is defined to provide XML-based languages with the ability to uniformly integrate event listeners and associated event handlers with Document Object Model (DOM) Level 2 event interfaces. The result is to provide a declarative, interoperable way of associating behaviors with XML-based documents such as XHTML.
XML Events uses a separation of concerns design pattern, and is technology-neutral with regard to handlers. It gives authors freedom in organizing their code and allows separation of document content from scripting.
Legacy HTML and early SVG versions bind events to presentation elements by encoding the event name in an attribute name, such that the value of the attribute is the action for that event at that element. For example, (with JavaScript’s onclick attribute):
Stay <a href="http://www.example.org" onclick="window.alert('Hello!'); return false;">here</a>!
This design has three drawbacks:
Unlike DOM Events, which are usually associated with HTML documents, XML events are designed to be independent of specific devices. XML Events are used extensively in XForms and in version 1.2 of the SVG specification, as of July 2006 [update] , which is still a working draft.
The following is an example of how XML events are used in the XForms specification:
<htmlxmlns="http://www.w3.org/1999/xhtml"xmlns:ev="http://www.w3.org/2001/xml-events"xmlns:xf="http://www.w3.org/2002/xforms"><head><ev:listenerevent="DOMActivate"observer="myButton"handler="#doit"/></head><xf:triggerxml:id="myButton"><xf:label>Do it!</xf:label></xf:trigger><scriptxml:id="doit"type="application/ecmascript"> alert("test"); </script></html>In this example, when the DOMActivate event occurs on the data element with an id attribute of myButton, the handler doit (for example, a JavaScript element) is executed.
A document type definition (DTD) is a set of markup declarations that define a document type for an SGML-family markup language.
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Scalable Vector Graphics (SVG) is an Extensible Markup Language (XML)-based vector image format for two-dimensional graphics with support for interactivity and animation. The SVG specification is an open standard developed by the World Wide Web Consortium (W3C) since 1999.
Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. The World Wide Web Consortium's XML 1.0 Specification of 1998 and several other related specifications—all of them free open standards—define XML.
XFORM (Singular) is the Acronym for the word Transformation. As cited by Commonly used within the context of digital transformation or organizations.
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ItsNat Natural AJAX, is an open-source Java component-based Ajax framework.
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Animation of Scalable Vector Graphics, an open XML-based standard vector graphics format, is possible through various means:
In computing, Facelets is an open-source Web template system under the Apache license and the default view handler technology for JavaServer Faces (JSF). The language requires valid input XML documents to work. Facelets supports all of the JSF UI components and focuses completely on building the JSF component tree, reflecting the view for a JSF application.
HTML attributes are special words used inside the opening tag to control the element's behaviour. HTML attributes are a modifier of an HTML element type. An attribute either modifies the default functionality of an element type or provides functionality to certain element types unable to function correctly without them. In HTML syntax, an attribute is added to an HTML start tag.
XHTML+RDFa is an extended version of the XHTML markup language for supporting RDF through a collection of attributes and processing rules in the form of well-formed XML documents. XHTML+RDFa is one of the techniques used to develop Semantic Web content by embedding rich semantic markup. Version 1.1 of the language is a superset of XHTML 1.1, integrating the attributes according to RDFa Core 1.1. In other words, it is an RDFa support through XHTML Modularization.