Version 1.3 of qooxdoo adds some impressive new features include 'virtual' lists, a progress bar and improvements for the toolbar.
This week, the qooxdoo developers released qooxdoo version 1.3 and an experimental feature called "virtual" lists.
"This List is based on a fundamental infrastructure that allows to elegantly create such virtual widgets," the announcement said. "Simply put, the meaning of 'virtual' is that only the visible items are created for rendering and updated on demand."
Version 1.3 also includes a "Tri-state CheckBox," a ProgressBar and a new ToolBar features.