XRX plus plus widget

A "widget" defines a part of the application visible to the user.

The XRX++-widget returns a HTML fragment. The HTML fragment to be returned is defined in xrx:view. xrx:view can

• contain explicit HTML,
• refer to
  • definitions of html-divisions (xrx:divs),
  • XRX++-embedded widgets (xrx:subwidget), or
  • a XRX++-template. The necessary CSS and JavaScript can be coded explicitly or imported via a reference to XRX++ CSS and XRX++ JavaScript objects (xrx:csss resp. xrx:jss).

xrx:variables defines the locally defined variables. xrx:constructor defines parameters to be passed to the widget.

It can have two modes:

• main widget: The returned HTML will be inserted into the XRX++-portal referenced in the XRX++-widget.
• embedded widget: The returned HTML will be inserted into another XRX++-widget.

The widget builds its HTML page via the widget module which evaluates the references to CSS and JavaScripts defined in the widget and integrates it into the portal

• xrx:model defines XForms models which bind input elements to data. The references to the model in the xrx:view are handled by BetterForm.

TODO: To be added:

• xrx:init
• widgets only with xrx:div but no xrx:view?
• extend on xrx:model in particular how BetterForm is part of the processing.

For further development see

• issue #186

The XRX++-widget is a XRX++ object