silverstripe-framework/forms/FormAction.php

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<?php
/**
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* The action buttons are <input type="submit"> as well as <button> tags.
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*
* Upon clicking the button below will redirect the user to doAction under the current controller.
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*
* <code>
* new FormAction (
* // doAction has to be a defined controller member
* $action = "doAction",
* $title = "Submit button"
* )
* </code>
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*
* @package forms
* @subpackage actions
*/
class FormAction extends FormField {
/**
* Action name, normally prefixed with 'action_'
*
* @var string
*/
protected $action;
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/**
* Enables the use of <button> instead of <input>
* in {@link Field()} - for more customizeable styling.
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*
* @var boolean
*/
public $useButtonTag = false;
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/**
* Literal button content, used when useButtonTag is true.
*
* @var string
*/
protected $buttonContent = null;
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/**
* Create a new action button.
*
* @param string $action The method to call when the button is clicked
* @param string $title The label on the button. This should be plain text, not escaped as HTML.
* @param Form form The parent form, auto-set when the field is placed inside a form
*/
public function __construct($action, $title = "", $form = null) {
$this->action = "action_$action";
$this->setForm($form);
parent::__construct($this->action, $title);
}
/**
* Get the action name
*
* @return string
*/
public function actionName() {
return substr($this->name, 7);
}
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/**
* Set the full action name, including action_
* This provides an opportunity to replace it with something else
*
* @param string $fullAction
* @return $this
*/
public function setFullAction($fullAction) {
$this->action = $fullAction;
return $this;
}
public function Field($properties = array()) {
$properties = array_merge(
$properties,
array(
'Name' => $this->action,
'Title' => ($this->description && !$this->useButtonTag) ? $this->description : $this->Title(),
'UseButtonTag' => $this->useButtonTag
)
);
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return parent::Field($properties);
}
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public function FieldHolder($properties = array()) {
return $this->Field($properties);
}
public function Type() {
return 'action';
}
public function Title() {
$title = parent::Title();
// Remove this method override in 4.0
$decoded = Convert::xml2raw($title);
if($title && $decoded !== $title) {
Deprecation::notice(
'4.0',
'The FormAction title field should not be html encoded. Use buttonContent to set custom html instead'
);
return $decoded;
}
return $title;
}
public function getAttributes() {
$type = (isset($this->attributes['src'])) ? 'image' : 'submit';
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return array_merge(
parent::getAttributes(),
array(
'disabled' => ($this->isReadonly() || $this->isDisabled()),
'value' => $this->Title(),
'type' => $type,
'title' => ($this->useButtonTag) ? $this->description : null,
)
);
}
/**
* Add content inside a button field.
*
* @param string $content
* @return $this
*/
public function setButtonContent($content) {
$this->buttonContent = (string) $content;
return $this;
}
/**
* Gets the content inside the button field
*
* @return string
*/
public function getButtonContent() {
return $this->buttonContent;
}
/**
* Enable or disable the rendering of this action as a <button />
*
* @param boolean
* @return $this
*/
public function setUseButtonTag($bool) {
$this->useButtonTag = $bool;
return $this;
}
/**
* Determine if this action is rendered as a <button />
*
* @return boolean
*/
public function getUseButtonTag() {
return $this->useButtonTag;
}
/**
* Does not transform to readonly by purpose.
* Globally disabled buttons would break the CMS.
*/
public function performReadonlyTransformation() {
$clone = clone $this;
$clone->setReadonly(true);
return $clone;
}
}