org.zkoss.zul

Class Treechildren

java.lang.Object

org.zkoss.zk.ui.AbstractComponent

org.zkoss.zk.ui.HtmlBasedComponent

org.zkoss.zul.impl.XulElement

org.zkoss.zul.Treechildren

All Implemented Interfaces:

Serializable, Cloneable, org.zkoss.zk.ui.Component, org.zkoss.zk.ui.ext.Scope, org.zkoss.zk.ui.sys.ComponentCtrl

public class Treechildren
extends XulElement

A treechildren.

Author:

tomyeh

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	Treechildren.ExtraCtrl A utility class to implement HtmlBasedComponent.getExtraCtrl().

Nested classes/interfaces inherited from class org.zkoss.zk.ui.AbstractComponent

org.zkoss.zk.ui.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

AFTER_CHILD_ADDED, AFTER_CHILD_REMOVED, AFTER_PAGE_ATTACHED, AFTER_PAGE_DETACHED, CE_BUSY_IGNORE, CE_DUPLICATE_IGNORE, CE_IMPORTANT, CE_NON_DEFERRABLE, CE_REPEAT_IGNORE

Constructor Summary

Constructors

Constructor and Description
Treechildren()

Method Summary

Modifier and Type	Method and Description
void	beforeChildAdded(org.zkoss.zk.ui.Component child, org.zkoss.zk.ui.Component refChild)
void	beforeParentChanged(org.zkoss.zk.ui.Component parent)
Object	getExtraCtrl()
int	getItemCount() Returns the number of child Treeitem including all descendants.
Collection<Treeitem>	getItems() Returns a readonly list of all descending Treeitem (children's children and so on).
Treerow	getLinkedTreerow() Returns the Treerow that is associated with this treechildren, or null if no such treerow.
Tree	getTree() Returns the Tree instance containing this element.
int	getVisibleItemCount() Returns the number of visible descendant Treeitem.
String	getZclass()
boolean	insertBefore(org.zkoss.zk.ui.Component newChild, org.zkoss.zk.ui.Component refChild)
void	onChildAdded(org.zkoss.zk.ui.Component child)
void	onChildRemoved(org.zkoss.zk.ui.Component child)
void	onPageAttached(org.zkoss.zk.ui.Page newpage, org.zkoss.zk.ui.Page oldpage)
protected void	redrawChildren(Writer out)
void	setHflex(String flex) Deprecated. as of release 6.0.0. To control the size of Tree related components, please refer to Tree and Treecol instead.
void	setParent(org.zkoss.zk.ui.Component parent)
void	setWidth(String width) Deprecated. as of release 6.0.0. To control the size of Tree related components, please refer to Tree and Treecol instead.
protected void	smartUpdate(String name, Object value)

Methods inherited from class org.zkoss.zul.impl.XulElement

clone, getContext, getCtrlKeys, getPopup, getPropertyAccess, getTooltip, renderProperties, setContext, setContext, setContextAttributes, setCtrlKeys, setPopup, setPopup, setPopupAttributes, setTooltip, setTooltip, setTooltipAttributes

Methods inherited from class org.zkoss.zk.ui.HtmlBasedComponent

addSclass, evalCSSFlex, focus, getAction, getDraggable, getDroppable, getHeight, getHflex, getLeft, getRenderdefer, getSclass, getStyle, getTabindex, getTabindexInteger, getTooltiptext, getTop, getVflex, getWidth, getZindex, getZIndex, removeSclass, removeSclass, service, setAction, setClass, setDraggable, setDroppable, setFocus, setHeight, setHeight0, setHeightDirectly, setHflex0, setHflexDirectly, setLeft, setLeftDirectly, setRenderdefer, setSclass, setStyle, setTabindex, setTabindex, setTooltiptext, setTop, setTopDirectly, setVflex, setVflex0, setVflexDirectly, setWidth0, setWidthDirectly, setZclass, setZindex, setZIndex, setZIndexDirectly

Methods inherited from class org.zkoss.zk.ui.AbstractComponent

addAnnotation, addAnnotation, addCallback, addClientEvent, addEventHandler, addEventListener, addEventListener, addForward, addForward, addForward, addForward, addMoved, addRedrawCallback, addScopeListener, addShadowRoot, addShadowRootBefore, addSharedEventHandlerMap, appendChild, applyProperties, beforeChildRemoved, detach, didActivate, didActivate, didDeserialize, didDeserialize, disableBindingAnnotation, disableClientUpdate, enableBindingAnnotation, getAnnotatedProperties, getAnnotatedPropertiesBy, getAnnotation, getAnnotation, getAnnotations, getAnnotations, getAnnotations, getAttribute, getAttribute, getAttribute, getAttributeOrFellow, getAttributes, getAttributes, getAuService, getAutag, getCallback, getChildren, getClientAttribute, getClientDataAttribute, getClientEvents, getDefaultMold, getDefinition, getDesktop, getEventHandler, getEventHandlerNames, getEventListenerMap, getEventListeners, getFellow, getFellow, getFellowIfAny, getFellowIfAny, getFellows, getFirstChild, getId, getLastChild, getListenerIterator, getMold, getNextSibling, getPage, getParent, getPreviousSibling, getRedrawCallback, getRoot, getShadowFellowIfAny, getShadowRoots, getShadowVariable, getShadowVariable, getShadowVariable0, getSpaceOwner, getSpecialRendererOutput, getStubonly, getSubBindingAnnotationCount, getTemplate, getTemplateNames, getUuid, getWidgetAttribute, getWidgetAttributeNames, getWidgetClass, getWidgetListener, getWidgetListenerNames, getWidgetOverride, getWidgetOverrideNames, hasAttribute, hasAttribute, hasAttribute, hasAttributeOrFellow, hasBindingAnnotation, hasFellow, hasFellow, hasSubBindingAnnotation, invalidate, invalidatePartial, isChildable, isInitialized, isInvalidated, isListenerAvailable, isVisible, onPageDetached, onWrongValue, query, queryAll, redraw, removeAttribute, removeAttribute, removeAttribute, removeCallback, removeChild, removeEventListener, removeForward, removeForward, removeRedrawCallback, removeScopeListener, removeShadowRoot, render, render, render, replace, response, response, response, service, sessionDidActivate, sessionWillPassivate, setAttribute, setAttribute, setAttribute, setAuService, setAutag, setClientAttribute, setClientDataAttribute, setDefinition, setDefinition, setId, setMold, setPage, setPageBefore, setStubonly, setStubonly, setSubBindingAnnotationCount, setTemplate, setVisible, setVisibleDirectly, setWidgetAttribute, setWidgetClass, setWidgetListener, setWidgetOverride, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdateWidgetListener, smartUpdateWidgetOverride, toString, updateByClient, updateSubBindingAnnotationCount, willPassivate, willPassivate, willSerialize, willSerialize

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.zkoss.zk.ui.sys.ComponentCtrl

invalidatePartial

Constructor Detail

Treechildren

public Treechildren()

Method Detail

getTree

public Tree getTree()

Returns the Tree instance containing this element.

getLinkedTreerow

public Treerow getLinkedTreerow()

Returns the Treerow that is associated with this treechildren, or null if no such treerow. In other words, it is Treeitem.getTreerow() of AbstractComponent.getParent().

Since:

2.4.1

See Also:

Treerow.getLinkedTreechildren()

getItems

public Collection<Treeitem> getItems()

Returns a readonly list of all descending Treeitem (children's children and so on).

Note: the performance of the size method of returned collection is no good.

getItemCount

public int getItemCount()

Returns the number of child Treeitem including all descendants. The same as getItems().size().

Note: the performance is no good.

getVisibleItemCount

public int getVisibleItemCount()

Returns the number of visible descendant Treeitem. Descendants include direct children, grand children and so on.

Since:

3.0.7

onChildAdded

public void onChildAdded(org.zkoss.zk.ui.Component child)

Specified by:

onChildAdded in interface org.zkoss.zk.ui.sys.ComponentCtrl

Overrides:

onChildAdded in class org.zkoss.zk.ui.AbstractComponent

onChildRemoved

public void onChildRemoved(org.zkoss.zk.ui.Component child)

Specified by:

onChildRemoved in interface org.zkoss.zk.ui.sys.ComponentCtrl

Overrides:

onChildRemoved in class org.zkoss.zk.ui.AbstractComponent

insertBefore

public boolean insertBefore(org.zkoss.zk.ui.Component newChild,
                            org.zkoss.zk.ui.Component refChild)

Specified by:

insertBefore in interface org.zkoss.zk.ui.Component

Overrides:

insertBefore in class org.zkoss.zk.ui.AbstractComponent

setWidth

public void setWidth(String width)

Deprecated. as of release 6.0.0. To control the size of Tree related components, please refer to Tree and Treecol instead.

Overrides:

setWidth in class org.zkoss.zk.ui.HtmlBasedComponent

setHflex

public void setHflex(String flex)

Deprecated. as of release 6.0.0. To control the size of Tree related components, please refer to Tree and Treecol instead.

Overrides:

setHflex in class org.zkoss.zk.ui.HtmlBasedComponent

beforeParentChanged

public void beforeParentChanged(org.zkoss.zk.ui.Component parent)

Specified by:

beforeParentChanged in interface org.zkoss.zk.ui.sys.ComponentCtrl

Overrides:

beforeParentChanged in class org.zkoss.zk.ui.AbstractComponent

setParent

public void setParent(org.zkoss.zk.ui.Component parent)

Specified by:

setParent in interface org.zkoss.zk.ui.Component

Overrides:

setParent in class org.zkoss.zk.ui.AbstractComponent

beforeChildAdded

public void beforeChildAdded(org.zkoss.zk.ui.Component child,
                             org.zkoss.zk.ui.Component refChild)

Specified by:

beforeChildAdded in interface org.zkoss.zk.ui.sys.ComponentCtrl

Overrides:

beforeChildAdded in class org.zkoss.zk.ui.AbstractComponent

getZclass

public String getZclass()

Overrides:

getZclass in class org.zkoss.zk.ui.HtmlBasedComponent

smartUpdate

protected void smartUpdate(String name,
                           Object value)

Overrides:

smartUpdate in class org.zkoss.zk.ui.AbstractComponent

onPageAttached

public void onPageAttached(org.zkoss.zk.ui.Page newpage,
                           org.zkoss.zk.ui.Page oldpage)

Specified by:

onPageAttached in interface org.zkoss.zk.ui.sys.ComponentCtrl

Overrides:

onPageAttached in class org.zkoss.zk.ui.AbstractComponent

redrawChildren

protected void redrawChildren(Writer out)
                       throws IOException

Overrides:

redrawChildren in class org.zkoss.zk.ui.AbstractComponent

Throws:

IOException

getExtraCtrl

public Object getExtraCtrl()

Specified by:

getExtraCtrl in interface org.zkoss.zk.ui.sys.ComponentCtrl

Overrides:

getExtraCtrl in class org.zkoss.zk.ui.HtmlBasedComponent