By Vaughn Bullard
A progressive new know-how for the speedily increasing global of e-commerce, XUL (XML consumer Interface Language) is an XML-based consumer interface language that offers net builders keep an eye on over all points of the net interface. that includes tutorials on programming with XUL, this publication indicates builders the right way to use uncomplicated XUL components to construct a pattern interface for an e-commerce website, then is going directly to discover extra refined functions by way of growing a data portal inside of an software. Readers will locate professional tips and suggestion on easy methods to start writing XUL code in addition to the way to expand it into Java and different non-Netscape interfaces.
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Extra info for Essential XUL programming
The legal values for the processContents attribute are “skip,” “lax,” or “strict,” which mean ignore, validate if possible, and strictly validate, respectively. The Schema specification includes other features like annotations, defining your own simpleContent or complexContent, nullable fields, keys, and substitution groups that are outside the scope of this book. org/TR for the complete specification and primer. A XUL Schema Now we are ready to examine a partial schema definition for the window element.
We showed you a very simple example of a XUL interface, and we have given you an idea of how XUL works together with other open standards in the Mozilla architecture. As software developers, we face certain obstacles in software development projects. Sometimes, user interfaces are required to change as our customers’ requirements evolve. When this happens, user interfaces that are hard-coded into our compiled programming languages are difficult to change. If a software project needs to support multiple platforms, this increases the complexity of our dilemma.
The key syntax rules to creating well-formed XUL are the XML declaration, elements, attributes, namespaces, comments, processing instructions, and the document type declaration. In the following sections, we will examine each in detail. XML Declaration XML documents have a simple order. An XML document starts with a prolog and then has a single root element that may contain other elements. Although all the items of a prolog are optional, we recommend that you include an XML declaration to specify the version of XML to which your document conforms.
Essential XUL programming by Vaughn Bullard