Package org.apache.wicket.markup.html.form

Class ImageButton

java.lang.Object

org.apache.wicket.Component

org.apache.wicket.MarkupContainer

org.apache.wicket.markup.html.WebMarkupContainer

org.apache.wicket.markup.html.form.LabeledWebMarkupContainer

org.apache.wicket.markup.html.form.FormComponent<java.lang.String>

org.apache.wicket.markup.html.form.Button

org.apache.wicket.markup.html.form.ImageButton

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable<Component>, IEventSink, IEventSource, IFeedbackContributor, IConverterLocator, IGenericComponent<java.lang.String,FormComponent<java.lang.String>>, IMetadataContext<java.io.Serializable,Component>, IRequestListener, IFormModelUpdateListener, IFormSubmitter, IFormSubmittingComponent, IFormVisitorParticipant, ILabelProvider<java.lang.String>, IHeaderContributor, IRequestableComponent, org.apache.wicket.util.IHierarchical<Component>, org.apache.wicket.util.io.IClusterable

public class ImageButton
extends Button
implements IRequestListener

<input type="image"> component - like Button only with an image.

For details of how ImageButtons load, generate and manage images, see LocalizedImageResource.

Author:

Jonathan Locke

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.wicket.markup.html.form.FormComponent

FLAG_CONVERT_EMPTY_INPUT_STRING_TO_NULL, VALUE_SEPARATOR

Fields inherited from class org.apache.wicket.Component

ENABLE, FLAG_INITIALIZED, FLAG_RESERVED1, FLAG_RESERVED2, FLAG_RESERVED3, FLAG_RESERVED4, FLAG_RESERVED5, FLAG_RESERVED8, PARENT_PATH, PATH_SEPARATOR, RENDER, RFLAG_CONTAINER_DEQUEING

Constructor Summary

Constructors

Constructor	Description
ImageButton(java.lang.String id, java.lang.String string)
ImageButton(java.lang.String id, IModel<java.lang.String> model)
ImageButton(java.lang.String id, IResource imageResource)	Constructs an image directly from an image resource.
ImageButton(java.lang.String id, ResourceReference resourceReference)	Constructs an image button from an image ResourceReference.
ImageButton(java.lang.String id, ResourceReference resourceReference, org.apache.wicket.request.mapper.parameter.PageParameters resourceParameters)	Constructs an image button from an image ResourceReference.

Method Summary

Modifier and Type	Method	Description
protected IResource	getImageResource()
protected ResourceReference	getImageResourceReference()
protected boolean	getStatelessHint()	Returns whether the component can be stateless.
protected void	onComponentTag(ComponentTag tag)	Processes the component tag.
void	onRequest()	Called when a request is received.
boolean	rendersPage()	Does invocation of this listener render the page.
ImageButton	setDefaultModel(IModel<?> model)	Sets the given model.
void	setImageResource(IResource imageResource)
void	setImageResourceReference(ResourceReference resourceReference)
void	setImageResourceReference(ResourceReference resourceReference, org.apache.wicket.request.mapper.parameter.PageParameters parameters)

Methods inherited from class org.apache.wicket.markup.html.form.Button

getDefaultFormProcessing, getForm, getOnClickScript, initModel, onAfterSubmit, onComponentTagBody, onError, onSubmit, setDefaultFormProcessing, updateModel

Methods inherited from class org.apache.wicket.markup.html.form.FormComponent

add, add, checkRequired, clearInput, convertInput, convertValue, error, getConvertedInput, getDefaultLabel, getDefaultLabel, getInput, getInputAsArray, getInputName, getModelValue, getRawInput, getType, getValidatorKeyPrefix, getValidators, getValue, hasRawInput, inputAsInt, inputAsInt, inputAsIntArray, inputChanged, internalOnModelChanged, invalid, isInputNullable, isMultiPart, isRequired, isValid, newValidatable, newValidationError, onDetach, onDisabled, onInvalid, onValid, processChildren, processInput, remove, reportRequiredError, setConvertedInput, setLabel, setModelValue, setRequired, setType, shouldTrimInput, trim, updateAutoLabels, updateCollectionModel, valid, validate, validateRequired, validateValidators, visitComponentsPostOrder, visitFormComponentsPostOrder

Methods inherited from class org.apache.wicket.markup.html.form.LabeledWebMarkupContainer

getLabel

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

getWebApplication, getWebPage, getWebRequest, getWebResponse, getWebSession

Methods inherited from class org.apache.wicket.MarkupContainer

add, addDequeuedComponent, addOrReplace, autoAdd, canDequeueTag, contains, dequeue, dequeue, dequeuePreamble, findChildComponent, findComponentToDequeue, get, getAssociatedMarkup, getAssociatedMarkupStream, getMarkup, getMarkupType, getRegionMarkup, internalAdd, internalInitialize, iterator, iterator, newDequeueContext, onInitialize, onRender, queue, remove, remove, removeAll, renderAll, renderAssociatedMarkup, renderNext, replace, size, stream, streamChildren, toString, toString, visitChildren, visitChildren

Methods inherited from class org.apache.wicket.Component

add, addStateChange, beforeRender, canCallListener, canCallListenerAfterExpiry, checkComponentTag, checkComponentTagAttribute, checkHierarchyChange, clearOriginalDestination, configure, continueToOriginalDestination, createConverter, debug, detach, detachModel, detachModels, determineVisibility, error, exceptionMessage, fatal, findMarkupStream, findPage, findParent, findParentWithAssociatedMarkup, getAjaxRegionMarkupId, getApplication, getBehaviorById, getBehaviorId, getBehaviors, getBehaviors, getClassRelativePath, getConverter, getDefaultModel, getDefaultModelObject, getDefaultModelObjectAsString, getDefaultModelObjectAsString, getEscapeModelStrings, getFeedbackMessages, getFlag, getId, getInnermostModel, getInnermostModel, getLocale, getLocalizer, getMarkup, getMarkupAttributes, getMarkupId, getMarkupId, getMarkupIdFromMarkup, getMarkupIdImpl, getMarkupSourcingStrategy, getMetaData, getModelComparator, getOutputMarkupId, getOutputMarkupPlaceholderTag, getPage, getPageRelativePath, getParent, getPath, getRenderBodyOnly, getRequest, getRequestCycle, getRequestFlag, getResponse, getSession, getSizeInBytes, getString, getString, getString, getStyle, getVariation, hasBeenRendered, hasErrorMessage, hasFeedbackMessage, info, internalRenderComponent, internalRenderHead, isActionAuthorized, isAuto, isBehaviorAccepted, isEnableAllowed, isEnabled, isEnabledInHierarchy, isIgnoreAttributeModifier, isInitialized, isRenderAllowed, isRendering, isStateless, isVersioned, isVisibilityAllowed, isVisible, isVisibleInHierarchy, markRendering, modelChanged, modelChanging, newMarkupSourcingStrategy, onAfterRender, onBeforeRender, onConfigure, onEvent, onModelChanged, onModelChanging, onReAdd, onRemove, redirectToInterceptPage, remove, remove, render, renderComponentTag, rendered, renderHead, renderPart, renderPlaceholderTag, replaceComponentTagBody, replaceWith, sameInnermostModel, sameInnermostModel, send, setAuto, setDefaultModelObject, setEnabled, setEscapeModelStrings, setFlag, setIgnoreAttributeModifier, setMarkup, setMarkupId, setMarkupIdImpl, setMetaData, setOutputMarkupId, setOutputMarkupPlaceholderTag, setParent, setRenderBodyOnly, setResponsePage, setResponsePage, setResponsePage, setVersioned, setVisibilityAllowed, setVisible, success, urlFor, urlFor, urlFor, urlForListener, urlForListener, visitParents, visitParents, warn, wrap

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wicket.markup.html.form.IFormSubmittingComponent

getInputName

Methods inherited from interface org.apache.wicket.IGenericComponent

getDefaultModel, getDefaultModelObject, getModel, getModelObject, setDefaultModelObject, setModel, setModelObject

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

ImageButton

public ImageButton(java.lang.String id,
                   ResourceReference resourceReference)

Constructs an image button from an image ResourceReference. That resource reference will bind its resource to the current SharedResources. If you are using non sticky session clustering and the resource reference is pointing to a Resource that isn't guaranteed to be on every server, for example a dynamic image or resources that aren't added with a IInitializer at application startup. Then if only that resource is requested from another server, without the rendering of the page, the image won't be there and will result in a broken link.

Parameters:

id - See Component

resourceReference - The shared image resource

ImageButton

public ImageButton(java.lang.String id,
                   ResourceReference resourceReference,
                   org.apache.wicket.request.mapper.parameter.PageParameters resourceParameters)

Constructs an image button from an image ResourceReference. That resource reference will bind its resource to the current SharedResources. If you are using non sticky session clustering and the resource reference is pointing to a Resource that isn't guaranteed to be on every server, for example a dynamic image or resources that aren't added with a IInitializer at application startup. Then if only that resource is requested from another server, without the rendering of the page, the image won't be there and will result in a broken link.

Parameters:

id - See Component

resourceReference - The shared image resource

resourceParameters - The resource parameters

ImageButton

public ImageButton(java.lang.String id,
                   IResource imageResource)

Constructs an image directly from an image resource. This one doesn't have the 'non sticky session clustering' problem that the ResourceReference constructor has. But this will result in a non 'stable' url and the url will have request parameters.

Parameters:

id - See Component

imageResource - The image resource

ImageButton

public ImageButton(java.lang.String id,
                   IModel<java.lang.String> model)

Parameters:

id -

model -

See Also:

Component(String, IModel)

ImageButton

public ImageButton(java.lang.String id,
                   java.lang.String string)

Parameters:

id - See Component

string - Name of image

See Also:

Component(String, IModel)

Method Detail

rendersPage

public boolean rendersPage()

Description copied from interface: IRequestListener

Does invocation of this listener render the page.

Specified by:

rendersPage in interface IRequestListener

Returns:

default true, i.e. a RenderPageRequestHandler is schedules after invocation

onRequest

public void onRequest()

Description copied from interface: IRequestListener

Called when a request is received.

Specified by:

onRequest in interface IRequestListener

See Also:

org.apache.wicket.IResourceListener#onResourceRequested()

setImageResource

public void setImageResource(IResource imageResource)

Parameters:

imageResource - The new ImageResource to set.

setImageResourceReference

public void setImageResourceReference(ResourceReference resourceReference)

Parameters:

resourceReference - The shared ImageResource to set.

setImageResourceReference

public void setImageResourceReference(ResourceReference resourceReference,
                                      org.apache.wicket.request.mapper.parameter.PageParameters parameters)

Parameters:

resourceReference - The shared ImageResource to set.

parameters - Set the resource parameters for the resource.

setDefaultModel

public ImageButton 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.

Specified by:

setDefaultModel in interface IGenericComponent<java.lang.String,FormComponent<java.lang.String>>

Overrides:

setDefaultModel in class MarkupContainer

Parameters:

model - The model

Returns:

This

See Also:

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

getImageResource

protected IResource getImageResource()

Returns:

Resource returned from subclass

getImageResourceReference

protected ResourceReference getImageResourceReference()

Returns:

ResourceReference returned from subclass

onComponentTag

protected final void onComponentTag(ComponentTag tag)

Processes the component tag.

Overrides:

onComponentTag in class Button

Parameters:

tag - Tag to modify

See Also:

Component.onComponentTag(ComponentTag)

getStatelessHint

protected boolean getStatelessHint()

Description copied from class: Component

Returns whether the component can be stateless. Also the component behaviors must be stateless, otherwise the component will be treat as stateful. In order for page to be stateless (and not to be stored in session), all components (and component behaviors) must be stateless.

Overrides:

getStatelessHint in class Component

Returns:

whether the component can be stateless

See Also:

Component.getStatelessHint()