org.zkoss.zul
Class Combobox

java.lang.Object
  org.zkoss.zk.ui.AbstractComponent
      org.zkoss.zk.ui.HtmlBasedComponent
          org.zkoss.zul.impl.XulElement
              org.zkoss.zul.impl.InputElement
                  org.zkoss.zul.Textbox
                      org.zkoss.zul.Combobox

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, HtmlBasedComponent, Component, Scope, ComponentCtrl, Combobox, Textbox, Constrainted, InputElement, XulElement

Direct Known Subclasses:

SimpleAutoComplete

public class Combobox
extends Textbox
implements Combobox

A combo box.

Non-XUL extension. It is used to replace XUL menulist. This class is more flexible than menulist, such as setAutocomplete(boolean) setAutodrop(boolean).

Default getZclass(): z-combobox.(since 3.5.0)

Events: onOpen, onSelect
Developers can listen to the onOpen event and initializes it when OpenEvent.isOpen() is true, and/or clean up if false. *

Besides assign a list model, you could assign a renderer (a ComboitemRenderer instance) to a combobox, such that the combobox will use this renderer to render the data returned by ListModel.getElementAt(int). If not assigned, the default renderer, which assumes a label per combo item, is used. In other words, the default renderer adds a label to a row by calling toString against the object returned by ListModel.getElementAt(int). (since 3.0.2)

Note: to have better performance, onOpen is sent only if a non-deferrable event listener is registered (see Deferrable).

Like Datebox, the value of a read-only comobobox (InputElement.isReadonly()) can be changed by dropping down the list and selecting an combo item (though users cannot type anything in the input box).

Author:

tomyeh

See Also:

Comboitem, Serialized Form

Nested Class Summary

protected class

Combobox.ExtraCtrl A utility class to implement AbstractComponent.getExtraCtrl().

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, RS_NO_DISPLAY, RS_NO_HEIGHT, RS_NO_WIDTH

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

_visible

Fields inherited from interface org.zkoss.zk.ui.Component

APPLICATION_SCOPE, COMPONENT_SCOPE, DESKTOP_SCOPE, PAGE_SCOPE, REQUEST_SCOPE, SESSION_SCOPE, SPACE_SCOPE

Constructor Summary

Combobox()

Combobox(java.lang.String value)

Method Summary

Comboitem	appendItem(java.lang.String label) Appends an item.
Comboitem	appendItemApi(java.lang.String label) Appends an item.
java.lang.Object	clone() Clones the component.
void	close() Closes the list of combo items (Comboitem if it was dropped down.
protected java.lang.String	coerceToString(java.lang.Object value) Coerces the value passed to Textbox.setValue(java.lang.String).
java.lang.String	getImage() Deprecated. As of release 3.5.0
java.lang.String	getInnerAttrs() Generates the Client-Side-Action attributes to the interior tag.
Comboitem	getItemAtIndex(int index) Returns the item at the specified index.
Comboitem	getItemAtIndexApi(int index) Returns the item at the specified index.
int	getItemCount() Returns the number of items.
ComboitemRenderer	getItemRenderer() Returns the renderer to render each row, or null if the default renderer is used.
java.util.List	getItems() Returns a 'live' list of all Comboitem.
ListModel	getModel() Returns the list model associated with this combobox, or null if this combobox is not associated with any list data model.
java.lang.String	getOuterAttrs() Returns the exterior attributes for generating the enclosing HTML tag; never return null.
protected int	getRealStyleFlags() Returns RS_NO_WIDTH|RS_NO_HEIGHT.
int	getSelectedIndex() Returns the index of the selected item, or -1 if not selected.
Comboitem	getSelectedItem() Returns the selected item.
Comboitem	getSelectedItemApi() Returns the selected item.
java.lang.String	getZclass() Returns the ZK Cascading Style class(es) for this component.
boolean	insertBefore(Component newChild, Component refChild) Inserts a child before the reference child.
boolean	isAutocomplete() Returns whether to automatically complete this text box by matching the nearest item (Comboitem.
boolean	isAutodrop() Returns whether to automatically drop the list if users is changing this text box.
boolean	isButtonVisible() Returns whether the button (on the right of the textbox) is visible.
boolean	isChildable() Childable.
protected java.lang.Object	newExtraCtrl() Used by AbstractComponent.getExtraCtrl() to create a client control.
void	onChildAdded(Component child) Default: does nothing.
void	onChildRemoved(Component child) Default: does nothing.
void	onInitRender(Event data) Handles a private event, onInitRender.
void	open() Drops down the list of combo items (Comboitem.
Comboitem	removeItemAt(int index) Removes the child item in the list box at the given index.
Comboitem	removeItemAtApi(int index) Removes the child item in the list box at the given index.
void	setAutocomplete(boolean autocomplete) Sets whether to automatically complete this text box by matching the nearest item (Comboitem.
void	setAutodrop(boolean autodrop) Sets whether to automatically drop the list if users is changing this text box.
void	setButtonVisible(boolean visible) Sets whether the button (on the right of the textbox) is visible.
void	setImage(java.lang.String img) Deprecated. As of release 3.5.0
void	setItemRenderer(ComboitemRenderer renderer) Sets the renderer which is used to render each row if getModel() is not null.
void	setItemRenderer(java.lang.String clsnm) Sets the renderer by use of a class name.
void	setModel(ListModel model) Sets the list model associated with this combobox.
void	setMultiline(boolean multiline) Sets whether it is multiline.
void	setOpen(boolean open) Drops down or closes the list of combo items (Comboitem.
void	setRows(int rows) Sets the rows.
void	setSelectedIndex(int jsel) Deselects the currently selected items and selects the item with the given index.
void	setSelectedItem(Comboitem item) Deselects the currently selected items and selects the given item.
void	setSelectedItemApi(Comboitem itemApi) Deselects the currently selected items and selects the given item.
void	setText(java.lang.String value) Sets the value in the String format.

Methods inherited from class org.zkoss.zul.Textbox

coerceFromString, getRows, getType, getValue, isMultiline, isTabbable, setTabbable, setType, setValue

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

checkUserError, clearErrorMessage, clearErrorMessage, getAreaText, getCols, getConstraint, getErrorMessage, getMaxlength, getName, getRawText, getRawValue, getTabindex, getTargetValue, getText, isDisabled, isReadonly, isValid, onWrongValue, select, setCols, setConstraint, setConstraint, setDisabled, setMaxlength, setName, setRawValue, setReadonly, setSelectedText, setSelectionRange, setTabindex, setValueDirectly, shallServerFormat, showCustomError, validate

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

getAction, getActionAttrs, getAllOnClickAttrs, getContext, getCtrlKeys, getPopup, getTooltip, setAction, setContext, setContext, setCtrlKeys, setPopup, setPopup, setTooltip, setTooltip

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

focus, getAllOnClickAttrs, getDraggable, getDroppable, getHeight, getLeft, getMoldSclass, getRealSclass, getRealStyle, getSclass, getStyle, getTooltiptext, getTop, getWidth, getZindex, getZIndex, redraw, setClass, setDraggable, setDroppable, setFocus, setHeight, setLeft, setMoldSclass, setSclass, setStyle, setTooltiptext, setTop, setWidth, setZclass, setZindex, setZIndex

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

addAnnotation, addAnnotation, addEventHandler, addEventListener, addForward, addForward, addForward, addForward, addMoved, addSharedAnnotationMap, addSharedEventHandlerMap, appendAsapAttr, appendAsapAttr, appendChild, applyProperties, containsVariable, detach, equals, getAnnotatedProperties, getAnnotatedPropertiesBy, getAnnotation, getAnnotation, getAnnotations, getAnnotations, getAttribute, getAttribute, getAttributes, getAttributes, getChildren, getCommand, getDefinition, getDesktop, getEventHandler, getEventHandlerNames, getExtraCtrl, getFellow, getFellowIfAny, getFellows, getFirstChild, getId, getLastChild, getListenerIterator, getMold, getMoldURI, getNamespace, getNextSibling, getPage, getParent, getPreviousSibling, getRoot, getSpaceOwner, getUuid, getVariable, hasFellow, invalidate, isAsapRequired, isInvalidated, isListenerAvailable, isVisible, newChildren, onDrawNewChild, onPageAttached, onPageDetached, removeAttribute, removeAttribute, removeChild, removeEventListener, removeForward, removeForward, response, sessionDidActivate, sessionWillPassivate, setAttribute, setAttribute, setComponentDefinition, setId, setMold, setPage, setPageBefore, setParent, setVariable, setVisible, smartUpdate, smartUpdate, smartUpdate, smartUpdateDeferred, smartUpdateValues, toString, unsetVariable

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.zkoss.zul.api.Textbox

getRows, getValue, setType, setValue

Methods inherited from interface org.zkoss.zul.impl.api.InputElement

clearErrorMessage, clearErrorMessage, getAreaText, getCols, getErrorMessage, getMaxlength, getName, getRawText, getRawValue, getTabindex, getText, getType, isDisabled, isMultiline, isReadonly, isValid, select, setCols, setConstraint, setDisabled, setMaxlength, setName, setRawValue, setReadonly, setSelectedText, setSelectionRange, setTabindex

Methods inherited from interface org.zkoss.zul.impl.api.XulElement

getAction, getContext, getCtrlKeys, getPopup, getTooltip, setAction, setContext, setContext, setCtrlKeys, setPopup, setPopup, setTooltip, setTooltip

Methods inherited from interface org.zkoss.zk.ui.api.HtmlBasedComponent

focus, getHeight, getLeft, getSclass, getStyle, getTooltiptext, getTop, getWidth, getZindex, getZIndex, setDraggable, setDroppable, setFocus, setHeight, setLeft, setSclass, setStyle, setTooltiptext, setTop, setWidth, setZclass, setZindex, setZIndex

Methods inherited from interface org.zkoss.zk.ui.Component

addEventListener, addForward, addForward, addForward, addForward, appendChild, applyProperties, containsVariable, detach, getAttribute, getAttribute, getAttributes, getAttributes, getChildren, getDefinition, getDesktop, getFellow, getFellowIfAny, getFellows, getFirstChild, getId, getLastChild, getListenerIterator, getMold, getNamespace, getNextSibling, getPage, getParent, getPreviousSibling, getRoot, getSpaceOwner, getUuid, getVariable, invalidate, isInvalidated, isListenerAvailable, isVisible, redraw, removeAttribute, removeAttribute, removeChild, removeEventListener, removeForward, removeForward, setAttribute, setAttribute, setId, setMold, setPage, setPageBefore, setParent, setVariable, setVisible, unsetVariable

Methods inherited from interface org.zkoss.zul.ext.Constrainted

getConstraint, setConstraint

Constructor Detail

Combobox

public Combobox()

Combobox

public Combobox(java.lang.String value)
         throws WrongValueException

Throws:

WrongValueException

Method Detail

coerceToString

protected java.lang.String coerceToString(java.lang.Object value)

Description copied from class: Textbox

Coerces the value passed to Textbox.setValue(java.lang.String).

Default: convert null to an empty string.

Overrides:

coerceToString in class Textbox

getModel

public ListModel getModel()

Returns the list model associated with this combobox, or null if this combobox is not associated with any list data model.

Note: for implementation of auto-complete, the result of getItemCount() is a subset of model. So, if the model implemented ListSubModel interface, you can't use the index of model to find the comboitem by getItemAtIndex(int).

Specified by:

getModel in interface Combobox

Since:

3.0.2

See Also:

ListSubModel.getSubModel(Object, int)

setModel

public void setModel(ListModel model)

Sets the list model associated with this combobox. If a non-null model is assigned, no matter whether it is the same as the previous, it will always cause re-render.

Specified by:

setModel in interface Combobox

Parameters:

model - the list model to associate, or null to dis-associate any previous model.

Throws:

UiException - if failed to initialize with the model

Since:

3.0.2

getItemRenderer

public ComboitemRenderer getItemRenderer()

Returns the renderer to render each row, or null if the default renderer is used.

Specified by:

getItemRenderer in interface Combobox

Since:

3.0.2

setItemRenderer

public void setItemRenderer(ComboitemRenderer renderer)

Sets the renderer which is used to render each row if getModel() is not null.

Note: changing a render will not cause the combobox to re-render. If you want it to re-render, you could assign the same model again (i.e., setModel(getModel())), or fire an ListDataEvent event.

Specified by:

setItemRenderer in interface Combobox

Parameters:

renderer - the renderer, or null to use the default.

Throws:

UiException - if failed to initialize with the model

Since:

3.0.2

setItemRenderer

public void setItemRenderer(java.lang.String clsnm)
                     throws java.lang.ClassNotFoundException,
                            java.lang.NoSuchMethodException,
                            java.lang.IllegalAccessException,
                            java.lang.InstantiationException,
                            java.lang.reflect.InvocationTargetException

Sets the renderer by use of a class name. It creates an instance automatically.

Specified by:

setItemRenderer in interface Combobox

Throws:

java.lang.ClassNotFoundException

java.lang.NoSuchMethodException

java.lang.IllegalAccessException

java.lang.InstantiationException

java.lang.reflect.InvocationTargetException

Since:

3.0.2

onInitRender

public void onInitRender(Event data)

Handles a private event, onInitRender. It is used only for implementation, and you rarely need to invoke it explicitly.

Since:

3.0.2

isAutodrop

public boolean isAutodrop()

Returns whether to automatically drop the list if users is changing this text box.

Default: false.

Specified by:

isAutodrop in interface Combobox

setAutodrop

public void setAutodrop(boolean autodrop)

Sets whether to automatically drop the list if users is changing this text box.

Specified by:

setAutodrop in interface Combobox

isAutocomplete

public boolean isAutocomplete()

Returns whether to automatically complete this text box by matching the nearest item (Comboitem.

Default: false.

If true, the nearest item will be searched and the text box is updated automatically. If false, user has to click the item or use the DOWN or UP keys to select it back.

Note: this feature is reserved and not yet implemented. Don't confuse it with the auto-completion feature mentioned by other framework. Such kind of auto-completion is supported well by listening to the onChanging event.

Specified by:

isAutocomplete in interface Combobox

setAutocomplete

public void setAutocomplete(boolean autocomplete)

Sets whether to automatically complete this text box by matching the nearest item (Comboitem.

Specified by:

setAutocomplete in interface Combobox

setOpen

public void setOpen(boolean open)

Drops down or closes the list of combo items (Comboitem.

Specified by:

setOpen in interface Combobox

Since:

3.0.1

See Also:

open(), close()

open

public void open()

Drops down the list of combo items (Comboitem. It is the same as setOpen(true).

Specified by:

open in interface Combobox

Since:

3.0.1

close

public void close()

Closes the list of combo items (Comboitem if it was dropped down. It is the same as setOpen(false).

Specified by:

close in interface Combobox

Since:

3.0.1

isButtonVisible

public boolean isButtonVisible()

Returns whether the button (on the right of the textbox) is visible.

Default: true.

Specified by:

isButtonVisible in interface Combobox

setButtonVisible

public void setButtonVisible(boolean visible)

Sets whether the button (on the right of the textbox) is visible.

Specified by:

setButtonVisible in interface Combobox

getImage

public java.lang.String getImage()

Deprecated. As of release 3.5.0

Returns the URI of the button image.

Default: null. (since 3.5.0)

Since:

2.4.1

setImage

public void setImage(java.lang.String img)

Deprecated. As of release 3.5.0

Sets the URI of the button image.

Parameters:

img - the URI of the button image.

Since:

2.4.1

getItems

public java.util.List getItems()

Returns a 'live' list of all Comboitem. By live we mean you can add or remove them directly with the List interface.

Currently, it is the same as AbstractComponent.getChildren(). However, we might add other kind of children in the future.

Specified by:

getItems in interface Combobox

getItemCount

public int getItemCount()

Returns the number of items.

Specified by:

getItemCount in interface Combobox

getItemAtIndex

public Comboitem getItemAtIndex(int index)

Returns the item at the specified index.

getItemAtIndexApi

public Comboitem getItemAtIndexApi(int index)

Returns the item at the specified index.

Specified by:

getItemAtIndexApi in interface Combobox

Since:

3.5.2

appendItem

public Comboitem appendItem(java.lang.String label)

Appends an item.

appendItemApi

public Comboitem appendItemApi(java.lang.String label)

Appends an item.

Specified by:

appendItemApi in interface Combobox

Since:

3.5.2

removeItemAt

public Comboitem removeItemAt(int index)

Removes the child item in the list box at the given index.

Returns:

the removed item.

removeItemAtApi

public Comboitem removeItemAtApi(int index)

Removes the child item in the list box at the given index.

Specified by:

removeItemAtApi in interface Combobox

Returns:

the removed item.

Since:

3.5.2

getSelectedItem

public Comboitem getSelectedItem()

Returns the selected item.

Since:

2.4.0

getSelectedItemApi

public Comboitem getSelectedItemApi()

Returns the selected item.

Specified by:

getSelectedItemApi in interface Combobox

Since:

3.5.2

setSelectedItem

public void setSelectedItem(Comboitem item)

Deselects the currently selected items and selects the given item.

Note: if the label of comboitem has the same more than one, the first comboitem will be selected at client side, it is a limitation of Combobox and it is different from Listbox.

Since:

3.0.2

setSelectedItemApi

public void setSelectedItemApi(Comboitem itemApi)

Deselects the currently selected items and selects the given item.

Note: if the label of comboitem has the same more than one, the first comboitem will be selected at client side, it is a limitation of Combobox and it is different from Listbox.

Specified by:

setSelectedItemApi in interface Combobox

Since:

3.5.2

setSelectedIndex

public void setSelectedIndex(int jsel)

Deselects the currently selected items and selects the item with the given index.

Note: if the label of comboitem has the same more than one, the first comboitem will be selected at client side, it is a limitation of Combobox and it is different from Listbox.

Specified by:

setSelectedIndex in interface Combobox

Since:

3.0.2

getSelectedIndex

public int getSelectedIndex()

Returns the index of the selected item, or -1 if not selected.

Specified by:

getSelectedIndex in interface Combobox

Since:

3.0.1

setText

public void setText(java.lang.String value)
             throws WrongValueException

Description copied from class: InputElement

Sets the value in the String format. In most case, you shall use the setValue method instead, e.g., Textbox.setValue(java.lang.String) and Intbox.setValue(java.lang.Integer).

It invokes InputElement.coerceFromString(java.lang.String) fisrt and then InputElement.validate(java.lang.Object). Derives might override them for type conversion and special validation.

Specified by:

setText in interface InputElement

Overrides:

setText in class InputElement

Parameters:

value - the value; If null, it is considered as empty.

Throws:

WrongValueException

setMultiline

public void setMultiline(boolean multiline)

Description copied from class: Textbox

Sets whether it is multiline.

Specified by:

setMultiline in interface Textbox

Overrides:

setMultiline in class Textbox

setRows

public void setRows(int rows)

Description copied from class: Textbox

Sets the rows.

Specified by:

setRows in interface Textbox

Overrides:

setRows in class Textbox

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 (@{link #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.

Specified by:

getZclass in interface HtmlBasedComponent

Overrides:

getZclass in class Textbox

See Also:

HtmlBasedComponent.getSclass(), HtmlBasedComponent.getRealSclass()

getOuterAttrs

public java.lang.String getOuterAttrs()

Description copied from class: HtmlBasedComponent

Returns the exterior attributes for generating the enclosing HTML tag; never return null.

Used only by component developers.

Default: Generates the tooltip text, style, sclass, draggable and droppable attribute if necessary. In other words, the corresponding attribute is generated if HtmlBasedComponent.getTooltiptext(), HtmlBasedComponent.getRealStyle(), HtmlBasedComponent.getSclass(), HtmlBasedComponent.getDraggable(), HtmlBasedComponent.getDroppable() are defined.

You have to call both HtmlBasedComponent.getOuterAttrs() and HtmlBasedComponent.getInnerAttrs() to generate complete attributes.

For simple components that all attributes are put on the outest HTML element, all you need is as follows.

<xx id="${self.uuid}"${self.outerAttrs}${self.innerAttrs}>

If you want to put attributes in a nested HTML element, you shall use the following pattern. Notice: if HtmlBasedComponent.getInnerAttrs() in a different tag, the tag must be named with "${self.uuid}!real".

<xx id="${self.uuid}"${self.outerAttrs}>
 <yy id="${self.uuid}!real"${self.innerAttrs}>...

Note: This class handles non-deferrable event listeners automatically. However, you have to invoke AbstractComponent.appendAsapAttr(java.lang.StringBuffer, java.lang.String) for each event the component handles in HtmlBasedComponent.getOuterAttrs() as follows.

        appendAsapAttr(sb, Events.ON_OPEN);
  appendAsapAttr(sb, Events.ON_CHANGE);

Theorectically, you could put any attributes in either HtmlBasedComponent.getInnerAttrs() or HtmlBasedComponent.getOuterAttrs(). However, zkau.js assumes all attributes are put at the outer one. If you want something different, you have to provide your own setAttr (refer to how checkbox is implemented).

Overrides:

getOuterAttrs in class Textbox

getInnerAttrs

public java.lang.String getInnerAttrs()

Description copied from class: XulElement

Generates the Client-Side-Action attributes to the interior tag. Reason: onfocus is the main use.

Overrides:

getInnerAttrs in class Textbox

getRealStyleFlags

protected int getRealStyleFlags()

Returns RS_NO_WIDTH|RS_NO_HEIGHT.

Overrides:

getRealStyleFlags in class HtmlBasedComponent

insertBefore

public boolean insertBefore(Component newChild,
                            Component refChild)

Description copied from interface: Component

Inserts a child before the reference child.

You could use Component.setParent(org.zkoss.zk.ui.Component) or Component.appendChild(org.zkoss.zk.ui.Component) instead of this method, unless you want to control where to put the child.

Note: Component.setParent(org.zkoss.zk.ui.Component) always calls back Component.insertBefore(org.zkoss.zk.ui.Component, org.zkoss.zk.ui.Component) and/or Component.removeChild(org.zkoss.zk.ui.Component), while Component.insertBefore(org.zkoss.zk.ui.Component, org.zkoss.zk.ui.Component) and Component.removeChild(org.zkoss.zk.ui.Component) always calls back Component.setParent(org.zkoss.zk.ui.Component), if the parent is changed. Thus, you don't need to override both Component.insertBefore(org.zkoss.zk.ui.Component, org.zkoss.zk.ui.Component) and Component.setParent(org.zkoss.zk.ui.Component), if you want to customize the behavior.

Specified by:

insertBefore in interface Component

Overrides:

insertBefore in class AbstractComponent

Parameters:

newChild - the new child to be inserted.

refChild - the child before which you want the new child being inserted. If null, the new child is append to the end.

Returns:

true if newChild is added successfully or moved; false if it already has the specified child and the order doesn't change.

isChildable

public boolean isChildable()

Childable.

Specified by:

isChildable in interface Component

Overrides:

isChildable in class InputElement

onChildAdded

public void onChildAdded(Component child)

Description copied from class: AbstractComponent

Default: does nothing.

Specified by:

onChildAdded in interface ComponentCtrl

Overrides:

onChildAdded in class AbstractComponent

See Also:

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

onChildRemoved

public void onChildRemoved(Component child)

Description copied from class: AbstractComponent

Default: does nothing.

Specified by:

onChildRemoved in interface ComponentCtrl

Overrides:

onChildRemoved in class AbstractComponent

See Also:

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

clone

public java.lang.Object clone()

Description copied from interface: Component

Clones the component. All of its children is cloned. Notice that the cloned component doesn't belong to any page, nor desktop. It doesn't have parent, either.

Specified by:

clone in interface Component

Overrides:

clone in class AbstractComponent

newExtraCtrl

protected java.lang.Object newExtraCtrl()

Description copied from class: HtmlBasedComponent

Used by AbstractComponent.getExtraCtrl() to create a client control. It is used only by component developers.

Defaut: creates an instance of HtmlBasedComponent.ExtraCtrl.

Overrides:

newExtraCtrl in class InputElement