org.zkoss.zul

Class Spinner

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.impl.FormatInputElement

org.zkoss.zul.impl.NumberInputElement

org.zkoss.zul.Spinner

All Implemented Interfaces:

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

public class Spinner
extends NumberInputElement

An edit box for holding a constrained integer.

Default getZclass(): z-spinner.

spinner supports below key events.

• 0-9 : set the value on the inner text box.
• delete : clear the value to empty (null)

Since:

3.5.0

Author:

gracelin

See Also:

Serialized Form

Nested Class Summary

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

org.zkoss.zk.ui.HtmlBasedComponent.ExtraCtrl

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.zul.impl.InputElement

_value

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
Spinner()
Spinner(int value)

Method Summary

Modifier and Type	Method and Description
protected Object	coerceFromString(String value) Coerces the value passed to InputElement.setText(java.lang.String).
protected String	coerceToString(Object value) Coerces the value passed to InputElement.setText(java.lang.String).
int	getStep() Return the step of spinner
protected Object	getTargetValue() Returns the value in the targeting type.
Integer	getValue() Returns the value (in Integer), might be null unless a constraint stops it.
String	getZclass()
int	intValue() Returns the value in integer.
boolean	isButtonVisible() Returns whether the button (on the right of the textbox) is visible.
protected void	renderProperties(org.zkoss.zk.ui.sys.ContentRenderer renderer)
void	setButtonVisible(boolean visible) Sets whether the button (on the right of the textbox) is visible.
void	setConstraint(String constr)
void	setStep(int step) Set the step of spinner
void	setValue(Integer value) Sets the value (in Integer).

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

formatNumber, getDefaultFormat, getDefaultLocale, getLocale, getPropertyAccess, getRoundingMode, isLocaleFormat, setLocale, setLocale, setRoundingMode, setRoundingMode, toNumberOnly

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

getFormat, getRealFormat, setFormat

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

checkUserError, clearErrorMessage, clearErrorMessage, clone, getCols, getConstraint, getErrorboxIconSclass, getErrorboxSclass, getErrorMessage, getInputAttributes, getInstant, getMaxlength, getName, getPlaceholder, getRawText, getRawValue, getText, getType, isChildable, isDisabled, isInplace, isInstant, isMultiline, isReadonly, isValid, marshall, onWrongValue, select, service, setCols, setConstraint, setDisabled, setErrorboxIconSclass, setErrorboxSclass, setErrorMessage, setInplace, setInputAttributes, setInputAttributes, setInsertedText, setInstant, setMaxlength, setName, setPlaceholder, setRawValue, setReadonly, setSelectedText, setSelectionRange, setText, setValueDirectly, showCustomError, unmarshall, validate

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

getContext, getCtrlKeys, getPopup, getTooltip, 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, getExtraCtrl, getHeight, getHflex, getLeft, getRenderdefer, getSclass, getStyle, getTabindex, getTabindexInteger, getTooltiptext, getTop, getVflex, getWidth, getZindex, getZIndex, removeSclass, removeSclass, setAction, setClass, setDraggable, setDroppable, setFocus, setHeight, setHeight0, setHeightDirectly, setHflex, setHflex0, setHflexDirectly, setLeft, setLeftDirectly, setRenderdefer, setSclass, setStyle, setTabindex, setTabindex, setTooltiptext, setTop, setTopDirectly, setVflex, setVflex0, setVflexDirectly, setWidth, 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, beforeChildAdded, beforeChildRemoved, beforeParentChanged, 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, insertBefore, invalidate, invalidatePartial, isInitialized, isInvalidated, isListenerAvailable, isVisible, onChildAdded, onChildRemoved, onPageAttached, onPageDetached, query, queryAll, redraw, redrawChildren, 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, setParent, setStubonly, setStubonly, setSubBindingAnnotationCount, setTemplate, setVisible, setVisibleDirectly, setWidgetAttribute, setWidgetClass, setWidgetListener, setWidgetOverride, smartUpdate, 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

Spinner

public Spinner()

Spinner

public Spinner(int value)
        throws org.zkoss.zk.ui.WrongValueException

Throws:

org.zkoss.zk.ui.WrongValueException

Method Detail

getValue

public Integer getValue()
                 throws org.zkoss.zk.ui.WrongValueException

Returns the value (in Integer), might be null unless a constraint stops it.

Throws:

org.zkoss.zk.ui.WrongValueException - if user entered a wrong value

intValue

public int intValue()
             throws org.zkoss.zk.ui.WrongValueException

Returns the value in integer. If null, zero is returned.

Throws:

org.zkoss.zk.ui.WrongValueException - if user entered a wrong value

getTargetValue

protected Object getTargetValue()
                         throws org.zkoss.zk.ui.WrongValueException

Description copied from class: InputElement

Returns the value in the targeting type. It is used by the deriving class to implement the getValue method. For example, Intbox.getValue() is the same as this method except with a different signature.

It invokes InputElement.checkUserError() to ensure no user error.

Overrides:

getTargetValue in class InputElement

Throws:

org.zkoss.zk.ui.WrongValueException - if the user entered a wrong value

See Also:

InputElement.getText()

setValue

public void setValue(Integer value)
              throws org.zkoss.zk.ui.WrongValueException

Sets the value (in Integer).

Throws:

org.zkoss.zk.ui.WrongValueException - if value is wrong

getStep

public int getStep()

Return the step of spinner

setStep

public void setStep(int step)

Set the step of spinner

isButtonVisible

public boolean isButtonVisible()

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

Default: true.

setButtonVisible

public void setButtonVisible(boolean visible)

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

getZclass

public String getZclass()

Overrides:

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

setConstraint

public void setConstraint(String constr)

Overrides:

setConstraint in class InputElement

Parameters:

constr - a list of constraints separated by comma. Example: no positive, no zero

coerceFromString

protected Object coerceFromString(String value)
                           throws org.zkoss.zk.ui.WrongValueException

Description copied from class: InputElement

Coerces the value passed to InputElement.setText(java.lang.String).

Deriving note:
If you want to store the value in other type, say BigDecimal, you have to override InputElement.coerceToString(java.lang.Object) and InputElement.coerceFromString(java.lang.String) to convert between a string and your targeting type.

Moreover, when Textbox is called, it calls this method with value = null. Derives shall handle this case properly.

Specified by:

coerceFromString in class InputElement

Throws:

org.zkoss.zk.ui.WrongValueException

coerceToString

protected String coerceToString(Object value)

Description copied from class: InputElement

Coerces the value passed to InputElement.setText(java.lang.String).

Default: convert null to an empty string.

Deriving note:
If you want to store the value in other type, say BigDecimal, you have to override InputElement.coerceToString(java.lang.Object) and InputElement.coerceFromString(java.lang.String) to convert between a string and your targeting type.

Specified by:

coerceToString in class InputElement

renderProperties

protected void renderProperties(org.zkoss.zk.ui.sys.ContentRenderer renderer)
                         throws IOException

Overrides:

renderProperties in class NumberInputElement

Throws:

IOException