org.zkoss.zul
Class Listgroup

java.lang.Object
  extended by org.zkoss.zk.ui.AbstractComponent
      extended by org.zkoss.zk.ui.HtmlBasedComponent
          extended by org.zkoss.zul.impl.XulElement
              extended by org.zkoss.zul.Listitem
                  extended by org.zkoss.zul.Listgroup
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, Component, Scope, ComponentCtrl

public class Listgroup
extends Listitem

Adds the ability for single level grouping to the Listbox.

Available in ZK PE and EE.

Event:

  1. onOpen is sent when this listgroup is opened or closed by user.

Default getZclass(): z-listgroup (since 5.0.0)

Since:
3.5.0
Author:
jumperchen
See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class org.zkoss.zul.Listitem
Listitem.ExtraCtrl
 
Nested classes/interfaces inherited from class org.zkoss.zk.ui.AbstractComponent
AbstractComponent.Children
 
Field Summary
 
Fields inherited from class org.zkoss.zk.ui.HtmlBasedComponent
_zclass
 
Fields inherited from interface org.zkoss.zk.ui.Component
APPLICATION_SCOPE, COMPONENT_SCOPE, DESKTOP_SCOPE, PAGE_SCOPE, REQUEST_SCOPE, SESSION_SCOPE, SPACE_SCOPE
 
Fields inherited from interface org.zkoss.zk.ui.sys.ComponentCtrl
CE_BUSY_IGNORE, CE_DUPLICATE_IGNORE, CE_IMPORTANT, CE_NON_DEFERRABLE, CE_REPEAT_IGNORE
 
Constructor Summary
Listgroup()
           
Listgroup(java.lang.String label)
           
Listgroup(java.lang.String label, T value)
           
 
Method Summary
 java.lang.Object clone()
          Clones the component.
 int getItemCount()
          Returns the number of items.
 java.util.List<Listitem> getItems()
          Returns a list of all Listitem are grouped by this listgroup.
 Listfoot getListfoot()
          Returns the Listfoot, if any.
 Listgroup getListgroup()
          Returns the listgroup that this item belongs to, or null.
 int getListgroupfootIndex()
          Returns the index of Listgroupfoot -1: no Listgroupfoot
 int getVisibleItemCount()
          Returns the number of visible descendant Listitem.
 java.lang.String getZclass()
          Returns the ZK Cascading Style class(es) for this component.
 boolean isOpen()
          Returns whether this container is open.
protected  void renderProperties(ContentRenderer renderer)
          Renders the content of this component, excluding the enclosing tags and children.
 void service(AuRequest request, boolean everError)
          Processes an AU request.
 void setOpen(boolean open)
          Sets whether this container is open.
 
Methods inherited from class org.zkoss.zul.Listitem
addMoved, beforeChildAdded, beforeParentChanged, getExtraCtrl, getImage, getIndex, getLabel, getListbox, getMaxlength, getMold, getSrc, getValue, isCheckable, isDisabled, isLoaded, isSelected, setCheckable, setDisabled, setHflex, setImage, setIndex, setLabel, setSelected, setSrc, setValue, setVisible, setWidth, smartUpdate, smartUpdate, smartUpdate
 
Methods inherited from class org.zkoss.zul.impl.XulElement
getContext, getCtrlKeys, getPopup, getTooltip, setContext, setContext, setCtrlKeys, setPopup, setPopup, setTooltip, setTooltip
 
Methods inherited from class org.zkoss.zk.ui.HtmlBasedComponent
focus, getAction, getDraggable, getDroppable, getHeight, getHflex, getLeft, getRenderdefer, getSclass, getStyle, getTooltiptext, getTop, getVflex, getWidth, getZindex, getZIndex, setAction, setClass, setDraggable, setDroppable, setFocus, setHeight, setHeightDirectly, setHflexDirectly, setLeft, setLeftDirectly, setRenderdefer, setSclass, setStyle, setTooltiptext, setTop, setTopDirectly, setVflex, setWidthDirectly, setZclass, setZindex, setZIndex, setZIndexDirectly
 
Methods inherited from class org.zkoss.zk.ui.AbstractComponent
addAnnotation, addAnnotation, addClientEvent, addEventHandler, addEventListener, addEventListener, addForward, addForward, addForward, addForward, addScopeListener, addSharedEventHandlerMap, appendChild, applyProperties, beforeChildRemoved, detach, didActivate, didActivate, didDeserialize, didDeserialize, disableClientUpdate, equals, getAnnotatedProperties, getAnnotatedPropertiesBy, getAnnotation, getAnnotation, getAnnotations, getAnnotations, getAnnotations, getAttribute, getAttribute, getAttribute, getAttributeOrFellow, getAttributes, getAttributes, getAuService, getAutag, getChildren, getClientEvents, getDefaultMold, getDefinition, getDesktop, getEventHandler, getEventHandlerNames, getEventListenerMap, getEventListeners, getFellow, getFellow, getFellowIfAny, getFellowIfAny, getFellows, getFirstChild, getId, getLastChild, getListenerIterator, getNextSibling, getPage, getParent, getPreviousSibling, getRoot, getSpaceOwner, getStubonly, getTemplate, getTemplateNames, getUuid, getWidgetAttribute, getWidgetAttributeNames, getWidgetClass, getWidgetListener, getWidgetListenerNames, getWidgetOverride, getWidgetOverrideNames, hasAttribute, hasAttribute, hasAttribute, hasAttributeOrFellow, hasFellow, hasFellow, insertBefore, invalidate, isChildable, isInvalidated, isListenerAvailable, isVisible, onChildAdded, onChildRemoved, onPageAttached, onPageDetached, onWrongValue, query, queryAll, redraw, redrawChildren, removeAttribute, removeAttribute, removeAttribute, removeChild, removeEventListener, removeForward, removeForward, removeScopeListener, render, render, render, replace, response, response, response, service, sessionDidActivate, sessionWillPassivate, setAttribute, setAttribute, setAttribute, setAuService, setAutag, setDefinition, setDefinition, setId, setMold, setPage, setPageBefore, setParent, setStubonly, setStubonly, setTemplate, setVisibleDirectly, setWidgetAttribute, setWidgetClass, setWidgetListener, setWidgetOverride, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdateWidgetListener, smartUpdateWidgetOverride, toString, updateByClient, willPassivate, willPassivate, willSerialize, willSerialize
 
Methods inherited from class java.lang.Object
finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Listgroup

public Listgroup()

Listgroup

public Listgroup(java.lang.String label)

Listgroup

public Listgroup(java.lang.String label,
                 T value)
Method Detail

getItems

public java.util.List<Listitem> getItems()
Returns a list of all Listitem are grouped by this listgroup.


getItemCount

public int getItemCount()
Returns the number of items.


getListgroup

public Listgroup getListgroup()
Description copied from class: Listitem
Returns the listgroup that this item belongs to, or null.

Overrides:
getListgroup in class Listitem

getVisibleItemCount

public int getVisibleItemCount()
Returns the number of visible descendant Listitem.

Since:
3.5.1

getListgroupfootIndex

public int getListgroupfootIndex()
Returns the index of Listgroupfoot

-1: no Listgroupfoot


getListfoot

public Listfoot getListfoot()
Returns the Listfoot, if any. Otherwise, null is returned.


isOpen

public boolean isOpen()
Returns whether this container is open.

Default: true.


setOpen

public void setOpen(boolean open)
Sets whether this container is open.


getZclass

public java.lang.String getZclass()
Description copied from class: HtmlBasedComponent
Returns the ZK Cascading Style class(es) for this component. It usually depends on the implementation of the mold (AbstractComponent.getMold()).

Default: null (the default value depends on element).

HtmlBasedComponent.setZclass(java.lang.String)) will completely replace the default style of a component. In other words, the default style of a component is associated with the default value of HtmlBasedComponent.getZclass(). Once it is changed, the default style won't be applied at all. If you want to perform small adjustments, use HtmlBasedComponent.setSclass(java.lang.String) instead.

Overrides:
getZclass in class Listitem
See Also:
HtmlBasedComponent.getSclass()

clone

public java.lang.Object clone()
Description copied from interface: Component
Clones the component. All of its children and descendants are cloned. Also, ID are preserved.

Specified by:
clone in interface Component
Overrides:
clone in class Listitem
Returns:
the new component. Notice that it doesn't belong to any page, nor desktop. It doesn't have a parent, either.

renderProperties

protected void renderProperties(ContentRenderer renderer)
                         throws java.io.IOException
Description copied from class: HtmlBasedComponent
Renders the content of this component, excluding the enclosing tags and children.

See also ZK Client-side Reference: Property Rendering

Overrides:
renderProperties in class Listitem
Throws:
java.io.IOException

service

public void service(AuRequest request,
                    boolean everError)
Processes an AU request.

Default: in addition to what are handled by HtmlBasedComponent.service(org.zkoss.zk.au.AuRequest, boolean), it also handles onOpen.

Specified by:
service in interface ComponentCtrl
Overrides:
service in class HtmlBasedComponent
everError - whether any error ever occurred before processing this request.
Since:
5.0.0
See Also:
AbstractComponent.setAuService(org.zkoss.zk.au.AuService)


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