Renders an HTML "input" element.
Decode Behavior
Obtain the Map from the
"requestParameterMap"
property of the ExternalContext. If the
value in the
Map for the value of the "clientId"
property of the
component is null, create a String by
concatenating
the value of the "clientId" property of the component with the
String ".x" (without the quotes). Create another String in the
same manner, but concatenate ".y" (without the quotes). If
null is the value in the Map
for both
Strings, return from decode(). If the value
in the
Map for the value of the "clientId"
property of the
component is not null, get the value of the
"type"
attribute, and convert it to lower case. If the result is equal
to the String "reset" (without the quotes), return from
decode(). Otherwise, create a
javax.faces.event.ActionEvent around the
component,
and pass it to the queueEvent() method of
the
component, which must be an instance of
UICommand.
Encode Behavior
Render the clientId of the component as the value of the
"name"
attribute. Render the current value of the component as the value
of the "value" attribute. If "image" attribute is specified render
it as the value of the "src" attribute after passing it to the
getResourceURL() method of the
ViewHandler for this application, and
passing the
result through the encodeResourceURL()
method of the
ExternalContext. Note that calling
getResourceURL() will prefix the
context-root of the
current application if the value of the "src" attribute starts
with "/". When handling the "image" attribute, the
value must not
be escaped. For example, & must not be
turned into
&. If the "styleClass"
attribute is
specified, render its value as the value of the "class" attribute.
If the user has specified an "onclick" attribute, append that
JavaScript to any existing JavaScript before rendering.
If the component being rendered
by
this renderer has any UIParameter children,
each one
of them must be rendered using the renderer for component-family:
"javax.faces.Input" and renderer-type: "javax.faces.Hidden". For
discussion, this is called the hiddenRenderer. A component with
component-type "javax.faces.Input" must be created for local use
in rendering each UIParameter child. The
"id"
property of the temporary component must be set to the "name" of
the UIParameter. The "value" property of
the
temporary component must be set to the "value" of the
UIParameter. For each UIParameter
child, the hiddenRenderer must have its
encodeBegin(), encodeChildren(),
and
encodeEnd() methods called, in order,
passing the
temporary component as the second argument.
| Info | Value |
|---|---|
| Component Type | javax.faces.HtmlCommandButton |
| Handler Class | None |
| Renderer Type | javax.faces.Button |
| Description | None |
| Name | Required | Type | Description |
|---|---|---|---|
role | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
|
Per the WAI-ARIA spec and its relationship to HTML5 (Section title ARIA Role Attriubute), every HTML element may have a "role" attribute whose value must be passed through unmodified on the element on which it is declared in the final rendered markup. The attribute, if specified, must have a value that is a string literal that is, or an EL Expression that evaluates to, a set of space-separated tokens representing the various WAI-ARIA roles that the element belongs to. It is the page author's responsibility to ensure that the user agent is capable of correctly interpreting the value of this attribute. |
action | false | javax.el.MethodExpression
(signature must match java.lang.Object action())
| MethodExpression representing the application action to invoke when this component is activated by the user. The expression must evaluate to a public method that takes no parameters, and returns an Object (the toString() of which is called to derive the logical outcome) which is passed to the NavigationHandler for this application. |
actionListener | false | javax.el.MethodExpression
(signature must match void actionListener(javax.faces.event.ActionEvent)
)
|
MethodExpression representing an action listener method that will be notified when this component is activated by the user. The expression must evaluate to a public method that takes an ActionEvent parameter, with a return type of void, or to a public method that takes no arguments with a return type of void. In the latter case, the method has no way of easily knowing where the event came from, but this can be useful in cases where a notification is needed that "some action happened". |
id | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| The component identifier for this component. This value must be unique within the closest parent component that is a naming container. |
immediate | false | javax.el.ValueExpression
(must evaluate to java.lang.Boolean)
| Flag indicating that, if this component is activated by the user, notifications should be delivered to interested listeners and actions immediately (that is, during Apply Request Values phase) rather than waiting until Invoke Application phase. |
rendered | false | javax.el.ValueExpression
(must evaluate to java.lang.Boolean)
| Flag indicating whether or not this component should be rendered (during Render Response Phase), or processed on any subsequent form submit. The default value for this property is true. |
value | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| The current value of this component. |
accesskey | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Access key that, when pressed, transfers focus to this element. |
alt | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Alternate textual description of the element rendered by this component. |
dir | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Direction indication for text that does not inherit directionality. Valid values are "LTR" (left-to-right) and "RTL" (right-to-left). |
disabled | false | javax.el.ValueExpression
(must evaluate to java.lang.Boolean)
| Flag indicating that this element must never receive focus or be included in a subsequent submit. A value of false causes no attribute to be rendered, while a value of true causes the attribute to be rendered as disabled="disabled". |
image | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
|
Absolute or relative URL of the image to be displayed for this button. If specified, this "input" element will be of type "image". Otherwise, it will be of the type specified by the "type" property with a label specified by the "value" property. Note that if the value of this attribute starts with "/", the rendered value for this attribute will be prefixed with the context-root for this application. |
label | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| A localized user presentable name for this component. |
lang | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Code describing the language used in the generated markup for this component. |
onblur | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when this element loses focus. |
onchange | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when this element loses focus and its value has been modified since gaining focus. |
onclick | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when a pointer button is clicked over this element. |
ondblclick | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when a pointer button is double clicked over this element. |
onfocus | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when this element receives focus. |
onkeydown | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when a key is pressed down over this element. |
onkeypress | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when a key is pressed and released over this element. |
onkeyup | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when a key is released over this element. |
onmousedown | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when a pointer button is pressed down over this element. |
onmousemove | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when a pointer button is moved within this element. |
onmouseout | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when a pointer button is moved away from this element. |
onmouseover | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when a pointer button is moved onto this element. |
onmouseup | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when a pointer button is released over this element. |
onselect | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Javascript code executed when text within this element is selected by the user. |
readonly | false | javax.el.ValueExpression
(must evaluate to java.lang.Boolean)
| Flag indicating that this component will prohibit changes by the user. The element may receive focus unless it has also been disabled. A value of false causes no attribute to be rendered, while a value of true causes the attribute to be rendered as readonly="readonly". |
style | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| CSS style(s) to be applied when this component is rendered. |
styleClass | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Space-separated list of CSS style class(es) to be applied when this element is rendered. This value must be passed through as the "class" attribute on generated markup. |
tabindex | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Position of this element in the tabbing order for the current document. This value must be an integer between 0 and 32767. |
title | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Advisory title information about markup elements generated for this component. |
type | false | javax.el.ValueExpression
(must evaluate to java.lang.String)
| Type of button to create. Valid values are "submit", "button", and "reset". If not specified, or not a valid value, the default value is "submit". |
binding | false | javax.el.ValueExpression
(must evaluate to javax.faces.component.UIComponent)
| The ValueExpression linking this component to a property in a backing bean |