org.apache.tapestry.form
Class Button

java.lang.Object
  org.apache.tapestry.spec.BaseLocatable
      org.apache.tapestry.AbstractComponent
          org.apache.tapestry.form.AbstractFormComponent
              org.apache.tapestry.form.Button

All Implemented Interfaces:

IFormComponent, IComponent, ILocatable, ILocationHolder, IRender

public abstract class Button
extends AbstractFormComponent

Implements a component that manages an HTML <input type=button> form element. [Component Reference]

This component is useful for attaching JavaScript onclick event handlers.

Version:

$Id: Button.java 243791 2004-02-19 17:38:13Z hlship $

Author:

Howard Lewis Ship, Paul Geerts, Malcolm Edgar

Constructor Summary

Button()

Method Summary

abstract String	getLabel()
abstract boolean	isDisabled() Returns true if the component is disabled.
protected void	renderComponent(IMarkupWriter writer, IRequestCycle cycle) Invoked by AbstractComponent.render(IMarkupWriter, IRequestCycle) to actually render the component (with any parameter values already set).

Methods inherited from class org.apache.tapestry.form.AbstractFormComponent

getDisplayName, getForm, getForm, getName, setForm, setName

Methods inherited from class org.apache.tapestry.AbstractComponent

addAsset, addBody, addComponent, cleanupAfterRender, finishLoad, finishLoad, fireObservedChange, fireObservedChange, fireObservedChange, fireObservedChange, fireObservedChange, fireObservedChange, fireObservedChange, fireObservedChange, fireObservedChange, format, format, format, format, formatString, formatString, formatString, formatString, generateAttributes, getAsset, getAssets, getBeans, getBinding, getBindingNames, getBindings, getBody, getBodyCount, getChangeObserver, getComponent, getComponents, getContainer, getExtendedId, getId, getIdPath, getListeners, getMessage, getMessages, getNamespace, getPage, getProperty, getSpecification, getString, pageEndRender, prepareForRender, render, renderBody, renderInformalParameters, setBinding, setContainer, setId, setNamespace, setPage, setProperty, setSpecification, toString

Methods inherited from class org.apache.tapestry.spec.BaseLocatable

getLocation, setLocation

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tapestry.IComponent

addAsset, addBody, addComponent, finishLoad, getAsset, getAssets, getBinding, getBindingNames, getBindings, getComponent, getComponents, getContainer, getExtendedId, getId, getIdPath, getMessage, getMessages, getNamespace, getPage, getProperty, getSpecification, getString, renderBody, setBinding, setContainer, setId, setNamespace, setPage, setProperty, setSpecification

Methods inherited from interface org.apache.tapestry.IRender

render

Methods inherited from interface org.apache.tapestry.ILocationHolder

setLocation

Methods inherited from interface org.apache.tapestry.ILocatable

getLocation

Constructor Detail

Button

public Button()

Method Detail

renderComponent

protected void renderComponent(IMarkupWriter writer,
                               IRequestCycle cycle)

Description copied from class: AbstractComponent

Invoked by AbstractComponent.render(IMarkupWriter, IRequestCycle) to actually render the component (with any parameter values already set). This is the method that subclasses must implement.

Specified by:

renderComponent in class AbstractComponent

getLabel

public abstract String getLabel()

isDisabled

public abstract boolean isDisabled()

Description copied from interface: IFormComponent

Returns true if the component is disabled. This is important when the containing form is submitted, since disabled parameters do not update their bindings.