zk
Class Desktop

java.lang.Object
  zk.Object
      zk.Widget
          zk.Desktop

public class Desktop
extends Widget

A desktop. Unlike the component at the server, a desktop is a widget.

However, the desktop are different from normal widgets:

1. The desktop is a conceptual widget. It is never attached with the DOM tree. Its desktop field is always null. In addition, calling zk.Widget#appendChild won't cause the child to be attached to the DOM tree automatically.
2. The desktop's ID and UUID are the same.

Field Summary

static Map	all A map of all desktops (readonly).
String	className The class name (zk.Desktop).
String	widgetName The widget name (desktop).

Fields inherited from class zk.Widget

$weave, auDelay, autag, bindLevel, desktop, effects_, firstChild, id, insertingBefore_, inServer, lastChild, nChildren, nextSibling, parent, previousSibling, uuid

Fields inherited from class zk.Object

$class, $oid

Method Summary

static Desktop	$(Object o) Returns the desktop of the specified desktop ID, widget, widget UUID, or DOM element.
void	$init(String dtid, String contextURI, String updateURI, String reqURI, boolean stateless) Constructor
Widget	setId(String id) This method is voided (does nothing) since the desktop's ID can be changed.
static Desktop	sync(int timeout) Checks if any desktop becomes invalid, and removes the invalid desktops.

Methods inherited from class zk.Widget

$, $f, $f, $f, $init, $n, $n, $o, afterAnima_, afterParentChanged_, appendChild, appendChild, beforeParentChanged_, beforeSendAU_, bind_, bind, bindChildren_, canActivate, cleanDrag_, clear, clearCache, cloneDrag_, deferRedrawHTML_, detach, doBlur_, doClick_, doDoubleClick_, doFocus_, doKeyDown_, doKeyPress_, doKeyUp_, domAttrs_, domClass_, domListen_, doMouseDown_, doMouseMove_, doMouseOut_, doMouseOver_, doMouseUp_, domStyle_, domTextStyleAttr_, domTooltiptext_, domUnlisten_, doRightClick_, doSelect_, doTooltipOut_, doTooltipOver_, dropEffect_, extraBind_, fire, fireX, focus_, focus, forcerender, fromPageCoord, get, getAction, getCaveNode, getChildAt, getChildIndex, getClass, getDraggable, getDragMessage_, getDragNode, getDragOptions_, getDrop_, getDroppable, getElementsById, getElementsByName, getFirstNode_, getFloatZIndex_, getHeight, getHflex, getId, getLeft, getMold, getOldWidget_, getPage, getRenderdefer, getSclass, getScrollLeft, getScrollTop, getStyle, getTextNode, getTooltiptext, getTop, getTopWidget, getVflex, getWidth, getZclass, getZIndex, hide, ignoreDescendantFloatUp_, ignoreDrag_, initDrag_, insertBefore, insertChildHTML_, isAutoId, isBinding, isFloating_, isListen, isRealVisible, isRealVisible, isVisible, isVisible, isWatchable_, listen, listenOnFitSize_, mimicMouseDown_, newInstance, nextUuid, onChildAdded_, onChildRemoved_, onChildReplaced_, onChildVisible_, onDrop_, redraw, redrawHTML_, register, removeChild, removeChild, removeChildHTML_, removeHTML_, replaceCavedChildren_, replaceChildHTML_, replaceHTML, replaceWidget, rerender, rerender, scrollIntoView, sendAU_, set, set, setAction, setChildren, setDomVisible_, setDraggable, setDroppable, setFloating_, setFloatZIndex_, setHeight, setHflex, setLeft, setListener, setListener, setListeners, setMold, setRenderdefer, setSclass, setScrollLeft, setScrollTop, setStyle, setTooltiptext, setTop, setTopmost, setVflex, setVisible, setWidth, setZclass, setZIndex, shallChildROD_, shallIgnoreClick_, show, smartUpdate, unbind_, unbind, unbindChildren_, uncloneDrag_, unlisten, unlistenOnFitSize_, updateDomClass_, updateDomStyle_, uuid, zsync

Methods inherited from class zk.Object

$init, $instanceof, $super, $super, $supers, $supers, afterInit, isAssignableFrom, isInstance, proxy

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

className

public String className

The class name (zk.Desktop).

widgetName

public String widgetName

The widget name (desktop).

Since:

5.0.2

all

public static Map all

A map of all desktops (readonly). The key is the desktop ID and the value is the desktop.

Method Detail

$init

public void $init(String dtid,
                  String contextURI,
                  String updateURI,
                  String reqURI,
                  boolean stateless)

Constructor

Parameters:

dtid - the ID of the desktop

contextURI - the context URI, such as /zkdemo

updateURI - the URI of ZK Update Engine, such as /zkdemo/zkau

reqURI - the URI of the request path.

stateless - whether this desktop is used for a stateless page. Specify true if you want to use the client-centric approach.

setId

public Widget setId(String id)

This method is voided (does nothing) since the desktop's ID can be changed.

Overrides:

setId in class Widget

Parameters:

id - the ID

Returns:

zk.Widget this widget

$

public static Desktop $(Object o)

Returns the desktop of the specified desktop ID, widget, widget UUID, or DOM element.

Notice that the desktop's ID and UUID are the same.

Parameters:

o - a desktop's ID, a widget, a widget's UUID, or a DOM element. If not specified, the default desktop is assumed.

Returns:

zk.Desktop

sync

public static Desktop sync(int timeout)

Checks if any desktop becomes invalid, and removes the invalid desktops. This method is called automatically when a new desktop is added. Application developers rarely need to access this method.

Parameters:

timeout - how many miliseconds to wait before doing the synchronization

Returns:

zk.Desktop the first desktop, or null if no desktop at all.