org.zkoss.zul
Class Comboitem

java.lang.Object
  org.zkoss.zk.ui.AbstractComponent
      org.zkoss.zk.ui.HtmlBasedComponent
          org.zkoss.zul.impl.XulElement
              org.zkoss.zul.impl.LabelElement
                  org.zkoss.zul.impl.LabelImageElement
                      org.zkoss.zul.Comboitem

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Component, Disable, Scope, ComponentCtrl

public class Comboitem
extends LabelImageElement
implements Disable

An item of a combo box.

Non-XUL extension. Refer to Combobox.

Default getZclass(): z-comboitem. (since 5.0.0)

Author:

tomyeh

See Also:

Combobox, Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.zkoss.zul.impl.LabelImageElement

LabelImageElement.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

Comboitem()

Comboitem(java.lang.String label)

Comboitem(java.lang.String label, java.lang.String image)

Method Summary

void	beforeParentChanged(Component parent) Default: does nothing.
java.lang.Object	clone() Clones the component.
java.lang.String	getContent() Returns the embedded content (i.e., HTML tags) that is shown as part of the description.
java.lang.String	getDescription() Returns the description (never null).
int	getIndex() Returns the index of this Comboitem.
<T> T	getValue() Returns the value associated with this combo item.
java.lang.String	getZclass() Returns the ZK Cascading Style class(es) for this component.
protected boolean	isChildable() No child is allowed.
boolean	isDisabled() Returns whether it is disabled.
protected void	renderProperties(ContentRenderer renderer) Renders the content of this component, excluding the enclosing tags and children.
void	setContent(java.lang.String content) Sets the embedded content (i.e., HTML tags) that is shown as part of the description.
void	setDescription(java.lang.String desc) Sets the description.
void	setDisabled(boolean disabled) Sets whether it is disabled.
void	setLabel(java.lang.String label) Sets the label.
<T> void	setValue(T value) Associate the value with this combo item.

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

getExtraCtrl, getHoverImage, getHoverImageContent, getIconSclass, getImage, getImageContent, getSrc, isImageAssigned, setHoverImage, setHoverImageContent, setHoverImageContent, setIconSclass, setImage, setImageContent, setImageContent, setSrc

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

getLabel, renderCrawlable

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, service, setAction, setClass, setDraggable, setDroppable, setFocus, setHeight, setHeightDirectly, setHflex, setHflexDirectly, setLeft, setLeftDirectly, setRenderdefer, setSclass, setStyle, setTooltiptext, setTop, setTopDirectly, setVflex, setWidth, setWidthDirectly, setZclass, setZindex, setZIndex, setZIndexDirectly

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

addAnnotation, addAnnotation, addClientEvent, addEventHandler, addEventListener, addEventListener, addForward, addForward, addForward, addForward, addMoved, addScopeListener, addSharedEventHandlerMap, appendChild, applyProperties, beforeChildAdded, 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, getMold, 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, 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, setVisible, setVisibleDirectly, setWidgetAttribute, setWidgetClass, setWidgetListener, setWidgetOverride, smartUpdate, smartUpdate, smartUpdate, 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

Comboitem

public Comboitem()

Comboitem

public Comboitem(java.lang.String label)

Comboitem

public Comboitem(java.lang.String label,
                 java.lang.String image)

Method Detail

setDisabled

public void setDisabled(boolean disabled)

Sets whether it is disabled.

Specified by:

setDisabled in interface Disable

Since:

3.0.1

isDisabled

public boolean isDisabled()

Returns whether it is disabled.

Default: false.

Specified by:

isDisabled in interface Disable

Since:

3.0.1

getDescription

public java.lang.String getDescription()

Returns the description (never null). The description is used to provide extra information such that users is easy to make a selection.

Default: "".

Deriving class can override it to return whatever it wants other than null.

setDescription

public void setDescription(java.lang.String desc)

Sets the description.

getContent

public java.lang.String getContent()

Returns the embedded content (i.e., HTML tags) that is shown as part of the description.

It is useful to show the description in more versatile way.

Since:

3.0.0

See Also:

getDescription()

setContent

public void setContent(java.lang.String content)

Sets the embedded content (i.e., HTML tags) that is shown as part of the description.

It is useful to show the description in more versatile way.

Default: empty ("").

Deriving class can override it to return whatever it wants other than null.

Security Note

Unlike other methods, the content assigned to this method is generated directly to the browser without escaping. Thus, it is better not to have something input by the user to avoid any XSS attach.

Since:

3.0.0

See Also:

setDescription(java.lang.String)

getValue

public <T> T getValue()

Returns the value associated with this combo item. The value is application dependent. It can be anything.

It is usually used with Combobox.getSelectedItem(). For example, combobox.getSelectedItem().getValue()

Since:

2.4.0

See Also:

Combobox.getSelectedItem(), setValue(T)

setValue

public <T> void setValue(T value)

Associate the value with this combo item. The value is application dependent. It can be anything.

Since:

2.4.0

See Also:

Combobox.getSelectedItem(), getValue()

getIndex

public int getIndex()

Returns the index of this Comboitem.

Since:

6.0.0

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 HtmlBasedComponent

See Also:

HtmlBasedComponent.getSclass()

setLabel

public void setLabel(java.lang.String label)

Description copied from class: LabelElement

Sets the label.

If label is changed, the whole component is invalidate. Thus, you want to smart-update, you have to override this method.

Overrides:

setLabel in class LabelElement

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 LabelImageElement

Throws:

java.io.IOException

beforeParentChanged

public void beforeParentChanged(Component parent)

Description copied from class: AbstractComponent

Default: does nothing.

Specified by:

beforeParentChanged in interface ComponentCtrl

Overrides:

beforeParentChanged in class AbstractComponent

Parameters:

parent - the new parent. If null, it means detachment.

See Also:

ComponentCtrl.beforeParentChanged(org.zkoss.zk.ui.Component)

isChildable

protected boolean isChildable()

No child is allowed.

Overrides:

isChildable in class AbstractComponent

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 LabelImageElement

Returns:

the new component. Notice that it doesn't belong to any page, nor desktop. It doesn't have a parent, either.