org.apache.wicket.extensions.ajax.markup.html
Class AjaxEditableLabel<T>

java.lang.Object
  org.apache.wicket.Component
      org.apache.wicket.MarkupContainer
          org.apache.wicket.markup.html.WebMarkupContainer
              org.apache.wicket.markup.html.WebMarkupContainerWithAssociatedMarkup
                  org.apache.wicket.markup.html.panel.Panel
                      org.apache.wicket.extensions.ajax.markup.html.AjaxEditableLabel<T>

Type Parameters:

T -

All Implemented Interfaces:

Serializable, IClusterable, IConverterLocator, IHeaderPartContainerProvider

Direct Known Subclasses:

AjaxEditableChoiceLabel, AjaxEditableMultiLineLabel

public class AjaxEditableLabel<T>
extends Panel

An implementation of ajaxified edit-in-place component using a TextField as it's editor.

There are several methods that can be overridden for customization.

• onEdit(AjaxRequestTarget) is called when the label is clicked and the editor is to be displayed. The default implementation switches the label for the editor and places the caret at the end of the text.
• onSubmit(AjaxRequestTarget) is called when in edit mode, the user submitted new content, that content validated well, and the model value successfully updated. This implementation also clears any window.status set.
• onError(AjaxRequestTarget) is called when in edit mode, the user submitted new content, but that content did not validate. Get the current input by calling FormComponent.getInput() on getEditor(), and the error message by calling:

   String errorMessage = editor.getFeedbackMessage().getMessage();
   

  The default implementation of this method displays the error message in window.status, redisplays the editor, selects the editor's content and sets the focus on it.
• onCancel(AjaxRequestTarget) is called when in edit mode, the user choose not to submit the contents (he/she pressed escape). The default implementation displays the label again without any further action.

Author:

Igor Vaynberg (ivaynberg), Eelco Hillenius

See Also:

Serialized Form

Nested Class Summary

protected class	AjaxEditableLabel.EditorAjaxBehavior
protected class	AjaxEditableLabel.LabelAjaxBehavior

Nested classes/interfaces inherited from class org.apache.wicket.Component

Component.ComponentModelChange, Component.EnabledChange, Component.IVisitor<T extends Component>, Component.VisibilityChange

Field Summary

Fields inherited from class org.apache.wicket.Component

ENABLE, FLAG_CONFIGURED, FLAG_INITIALIZED, FLAG_REMOVING_FROM_HIERARCHY, FLAG_RESERVED1, FLAG_RESERVED2, FLAG_RESERVED3, FLAG_RESERVED4, FLAG_RESERVED5, FLAG_RESERVED6, FLAG_RESERVED7, FLAG_RESERVED8, PATH_SEPARATOR, RENDER

Constructor Summary

AjaxEditableLabel(String id)
Constructor

AjaxEditableLabel(String id, IModel<T> model)
Constructor

Method Summary

AjaxEditableLabel<T>	add(IValidator<T> validator) Adds a validator to this form component.
protected String	defaultNullLabel() Override this to display a different value when the model object is null.
IConverter	getConverter(Class<?> type) Implementation that returns null by default (panels don't typically need converters anyway).
protected FormComponent<T>	getEditor() Gets the editor component.
protected WebComponent	getLabel() Gets the label component.
protected String	getLabelAjaxEvent() By default this returns "onclick" uses can overwrite this on which event the label behavior should be triggered
protected FormComponent<T>	newEditor(MarkupContainer parent, String componentId, IModel<T> model) Create a new form component instance to serve as editor.
protected WebComponent	newLabel(MarkupContainer parent, String componentId, IModel<T> model) Create a new form component instance to serve as label.
protected void	onBeforeRender() Called just before a component is rendered.
protected void	onCancel(AjaxRequestTarget target) Invoked when the label is in edit mode, and received a cancel event.
protected void	onEdit(AjaxRequestTarget target) Called when the label is clicked and the component is put in edit mode.
protected void	onError(AjaxRequestTarget target) Invoked when the label is in edit mode, received a new input, but that input didn't validate
protected void	onModelChanged() Dummy override to fix WICKET-1239
protected void	onModelChanging() Dummy override to fix WICKET-1239
protected void	onSubmit(AjaxRequestTarget target) Invoked when the editor was successfully updated.
AjaxEditableLabel<T>	setDefaultModel(IModel<?> model) Sets the given model.
AjaxEditableLabel<T>	setLabel(IModel<String> labelModel) The value will be made available to the validator property by means of ${label}.
AjaxEditableLabel<T>	setRequired(boolean required) Sets the required flag
AjaxEditableLabel<T>	setType(Class<?> type) Sets the type that will be used when updating the model for this component.

Methods inherited from class org.apache.wicket.markup.html.panel.Panel

onComponentTag, onComponentTagBody, renderHead

Methods inherited from class org.apache.wicket.markup.html.WebMarkupContainerWithAssociatedMarkup

newHeaderPartContainer, renderHeadFromAssociatedMarkupFile

Methods inherited from class org.apache.wicket.markup.html.WebMarkupContainer

getMarkupType, getWebPage, getWebRequest

Methods inherited from class org.apache.wicket.MarkupContainer

add, addOrReplace, autoAdd, autoAdd, contains, findMarkupStream, get, get, getAssociatedMarkupStream, getMarkupStream, hasAssociatedMarkup, internalAdd, isTransparentResolver, iterator, iterator, newMarkupResourceStream, onAfterRenderChildren, onRender, remove, remove, removeAll, renderAll, renderAssociatedMarkup, renderComponentTagBody, renderNext, replace, setMarkupStream, size, swap, toString, toString, visitChildren, visitChildren

Methods inherited from class org.apache.wicket.Component

add, addStateChange, afterRender, beforeRender, callOnBeforeRenderIfNotVisible, checkComponentTag, checkComponentTagAttribute, checkHierarchyChange, configure, continueToOriginalDestination, debug, detach, detachBehaviors, detachModel, detachModels, determineVisibility, error, exceptionMessage, fatal, findPage, findParent, findParentWithAssociatedMarkup, getApplication, getBehaviors, getBehaviors, getBehaviorsRawList, getClassRelativePath, getComponentBorder, getConverter, getDefaultModel, getDefaultModelObject, getDefaultModelObjectAsString, getDefaultModelObjectAsString, getEscapeModelStrings, getFeedbackMessage, getFlag, getFlag, getId, getInnermostModel, getInnermostModel, getLocale, getLocalizer, getMarkupAttributes, getMarkupId, getMarkupId, getMarkupIdImpl, getMetaData, getModelComparator, getOutputMarkupId, getOutputMarkupPlaceholderTag, getPage, getPageRelativePath, getParent, getPath, getRenderBodyOnly, getRequest, getRequestCycle, getResponse, getSession, getSizeInBytes, getStatelessHint, getString, getString, getString, getStyle, getVariation, hasBeenRendered, hasErrorMessage, hasFeedbackMessage, info, initModel, internalAttach, internalDetach, internalOnAttach, internalOnDetach, internalOnModelChanged, isActionAuthorized, isAncestorOf, isAttached, isBehaviorAccepted, isEnableAllowed, isEnabled, isEnabledInHierarchy, isIgnoreAttributeModifier, isRenderAllowed, isStateless, isVersioned, isVisibilityAllowed, isVisible, isVisibleInHierarchy, locateMarkupStream, markAttached, markRendering, modelChanged, modelChanging, onAfterRender, onAttach, onBeginRequest, onConfigure, onDetach, onEndRequest, onInitialize, onRemove, prepareForRender, prepareForRender, redirectToInterceptPage, remove, remove, render, render, renderComponent, renderComponent, renderComponentTag, rendered, renderPlaceholderTag, replaceComponentTagBody, replaceWith, sameInnermostModel, sameInnermostModel, setAuto, setComponentBorder, setDefaultModelObject, setEnabled, setEscapeModelStrings, setFlag, setFlag, setIgnoreAttributeModifier, setMarkupId, setMarkupIdImpl, setMetaData, setOutputMarkupId, setOutputMarkupPlaceholderTag, setRedirect, setRenderBodyOnly, setResponsePage, setResponsePage, setResponsePage, setVersioned, setVisibilityAllowed, setVisible, urlFor, urlFor, urlFor, urlFor, urlFor, urlFor, visitParents, warn, wrap

Methods inherited from class java.lang.Object

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

Constructor Detail

AjaxEditableLabel

public AjaxEditableLabel(String id)

Constructor

Parameters:

id -

AjaxEditableLabel

public AjaxEditableLabel(String id,
                         IModel<T> model)

Constructor

Parameters:

id -

model -

Method Detail

add

public final AjaxEditableLabel<T> add(IValidator<T> validator)

Adds a validator to this form component. A model must be available for this component before Validators can be added. Either add this Component to its parent (already having a Model), or provide one before this call via constructor AjaxEditableLabel(String,IModel) or setDefaultModel(IModel).

Parameters:

validator - The validator

Returns:

This

getConverter

public IConverter getConverter(Class<?> type)

Implementation that returns null by default (panels don't typically need converters anyway). This is used by the embedded default instances of label and form field to determine whether they should use a converter like they normally would (when this method returns null), or whether they should use a custom converter (when this method is overridden and returns not null).

Specified by:

getConverter in interface IConverterLocator

Overrides:

getConverter in class Component

Parameters:

type - The type to convert to

Returns:

The converter that should be used by this component

See Also:

Component.getConverter(java.lang.Class)

setLabel

public final AjaxEditableLabel<T> setLabel(IModel<String> labelModel)

The value will be made available to the validator property by means of ${label}. It does not have any specific meaning to FormComponent itself.

Parameters:

labelModel -

Returns:

this for chaining

setDefaultModel

public final AjaxEditableLabel<T> setDefaultModel(IModel<?> model)

Description copied from class: Component

Sets the given model.

WARNING: DO NOT OVERRIDE THIS METHOD UNLESS YOU HAVE A VERY GOOD REASON FOR IT. OVERRIDING THIS MIGHT OPEN UP SECURITY LEAKS AND BREAK BACK-BUTTON SUPPORT.

Overrides:

setDefaultModel in class MarkupContainer

Parameters:

model - The model

Returns:

This

See Also:

MarkupContainer.setDefaultModel(org.apache.wicket.model.IModel)

setRequired

public final AjaxEditableLabel<T> setRequired(boolean required)

Sets the required flag

Parameters:

required -

Returns:

this for chaining

setType

public final AjaxEditableLabel<T> setType(Class<?> type)

Sets the type that will be used when updating the model for this component. If no type is specified String type is assumed.

Parameters:

type -

Returns:

this for chaining

newEditor

protected FormComponent<T> newEditor(MarkupContainer parent,
                                     String componentId,
                                     IModel<T> model)

Create a new form component instance to serve as editor.

Parameters:

parent - The parent component

componentId - Id that should be used by the component

model - The model

Returns:

The editor

newLabel

protected WebComponent newLabel(MarkupContainer parent,
                                String componentId,
                                IModel<T> model)

Create a new form component instance to serve as label.

Parameters:

parent - The parent component

componentId - Id that should be used by the component

model - The model

Returns:

The editor

getLabelAjaxEvent

protected String getLabelAjaxEvent()

By default this returns "onclick" uses can overwrite this on which event the label behavior should be triggered

Returns:

The event name

getEditor

protected final FormComponent<T> getEditor()

Gets the editor component.

Returns:

The editor component

getLabel

protected final WebComponent getLabel()

Gets the label component.

Returns:

The label component

onBeforeRender

protected void onBeforeRender()

Description copied from class: Component

Called just before a component is rendered.

NOTE: If you override this, you *must* call super.onBeforeRender() within your implementation. Because this method is responsible for cascading Component.onBeforeRender() call to its children it is strongly recommended that super call is made at the end of the override.

Overrides:

onBeforeRender in class Component

See Also:

Component.onBeforeRender()

onCancel

protected void onCancel(AjaxRequestTarget target)

Invoked when the label is in edit mode, and received a cancel event. Typically, nothing should be done here.

Parameters:

target - the ajax request target

onEdit

protected void onEdit(AjaxRequestTarget target)

Called when the label is clicked and the component is put in edit mode.

Parameters:

target - Ajax target

onError

protected void onError(AjaxRequestTarget target)

Invoked when the label is in edit mode, received a new input, but that input didn't validate

Parameters:

target - the ajax request target

onSubmit

protected void onSubmit(AjaxRequestTarget target)

Invoked when the editor was successfully updated. Use this method e.g. to persist the changed value. This implementation displays the label and clears any window status that might have been set in onError.

Parameters:

target - The ajax request target

defaultNullLabel

protected String defaultNullLabel()

Override this to display a different value when the model object is null. Default is ...

Returns:

The string which should be displayed when the model object is null.

onModelChanged

protected void onModelChanged()

Dummy override to fix WICKET-1239

Overrides:

onModelChanged in class Component

See Also:

Component.onModelChanged()

onModelChanging

protected void onModelChanging()

Dummy override to fix WICKET-1239

Overrides:

onModelChanging in class Component

See Also:

Component.onModelChanging()