ZK 2.4.1

Released on July 6, 2007.

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Getting Simpler and Richer

Feature Updates

• 77 XUL and 83 HTML off-the-shelf components.
  • Tabbox, grid, listbox, tree, menu, combobox, bandbox, datebox, chart, hbox, vbox, window, slider, paging, audio, image, timer, include, iframe...
  • Drag-and-drop supported by all components, such that users can drag components and drop them to any other or particular set of components.
  • Context menus and customizable tooltips supported by all components, such that a menu or any popup appears when user click, right-click or move the mouse over a component.
  • Customizable sorting of listbox, grid and children of any component with 100% Java codes (java.lang.Comparator).
  • Auto-completion for combobox.
  • Load on demand with writing Java codes.
  • Live data for listbox.
  • Grids, listboxes and trees with sizable columns.
  • All components are cloneable and serializable.
  • Validation and formatting for any input components, such as regular expression and $#,##0.
  • 100% Java API of Google Maps, FCKeditor, DOJO, and Timeline components.
• Event-driven, server-centric model
  • More than 20 events are supported: onChange, onChanging, onScroll, onSelect, onShow, onZIndex...
  • All events are processed at the server. No hurdle to communicate between clients and servers.
  • All events are synchronized. No racing condition to worry about.
• ZK User-interface Markup Language (ZUML).
  • Rich user interface could be designed in ZUML as simple as authoring HTML pages.
  • Powerful yet intuitive control flow by the if, unless and forEach attribute.
  • Scripting in EL expressions and your favorite scripting languages, include but not limited to Java, JavaScript, Ruby and Groovy.
  • Hot changes and updates without restarting your Web applications.
  • Annotations that allow a page to acess database with zero Java codes.
• Browser history management.
  • Add states to browser's back button history. Then, users can bookmark and use the back and forward button to navigate different states of the same ZK desktop.
• Simple yet boundless component model.
  • Macro components. Developing a full-feature new component by using another ZUML pages.
  • Inheritable customization. Developing a new component by extending existent components.
  • Seamlessly and easily to encapsulate pure-client components as ZK components with 100% Java API.
  • Customizing components with pre-compiled Java classes, or by scripting in your favorite scripting languages, include but not limited to Java, JavaScript, Ruby and Groovy. The choice is yours.
• Simple yet flexible threading model.
  • Thread-safe component handling.
  • True server-side Modal dialog.
  • Suspend and resume event listeners freely.
• 100% Customizable User-Interface factory.
  • Loading ZUML pages not only from Web contents but also any repository such as database.
  • Customizing the features of sessions, desktops and pages.

What's New

• New Features:
  • 1735610: Translate messages to Catalan. Thank Xavier Covas O'Ryan ([email protected]) for his contribution.
  • 1744123: Improve the way the performance of handling a huge tree
  • 1746896: Support gzip to send back JS, CSS and AU responses
  • 1747429: Interpret .ZUL loaded from classpath
  • 1740668: A way to override the generation of IDs of comp/page/desktop
  • 1736861: should be device dependant (ZK Mobile)
  • 1738246: Improve multiline textbox with maxlength
  • 1738280: An option not to disable elements behind a modal window
  • 1740080: Datebox supports the buttonVisible property
  • 1740072: dynamic "look ahead" live data for listbox and grid
  • 1743271: Generic way to handle ThreadLocal variables issue
  • 1743288: Make button icon of comobox/bandbox configurable
  • 1744550: Interpreter support namespace-based method retrieval
  • 1736887: Unnecessary .js files and reducing zk pages loading time
• Bug fixes:
  • 1734801: toolbarbutton/button popup broken in 2.4.0
  • 1721809: button.onClick does not always work
  • 1741959: Potential IE memory leaks for not unregister event listener
  • 1734950: listbox seletion update-problem
  • 1736355: zkplus didn't import databind pkg for groovy, ruby...
  • 1736858: Memory Leak with BeanShell
  • 1687152: Windows are overlaying background images
  • 1737604: EL: session is not accessible
  • 1738240: Combobox's onselection doesn't work
  • 1738343: Unable to include ZUML page from JSP
  • 1738368: zkFilter failed to work with Jetty 6.1.4
  • 1711822: Menuitem: the order of onClick and onOpen
  • 1713353: SPRING SCOPE SESSION BUG
  • 1738241: Combobox's icon is placed at the wrong location (IE only)
  • 1746913: Grid in listbox cause ClassCastException if clicking on grid
  • 1746915: Grid in listbox: wrong text color if selected
  • 1735084: listbox styles cascade into datebox-popup (IE only)
  • 1737660: Listbox/Gridbox header cell size render error
  • 1744427: Error binding Listbox
  • 1748680: JavaScript namespaces hardcoded in component classes

Upgrade Notes

• The ZK loader and filter compress the output if the browser supports the compression encoding. It may cause some side effect if you post-process the output with a filter. You can turn it off to make the ZK loader not to compress as used to. Refer to the Developer's Guide for details.

  <servlet>
    <servlet-name>zkLoader</servlet-name>
    <servlet-class>org.zkoss.zk.ui.http.DHtmllayoutServlet</servlet-class>
    <init-param>
      <param-name>compress</param-name>
      <param-value>false</param-value>
    </init-param>
    ...