silverstripe-framework/forms/ConfirmedFormAction.php

<?php

/**
 * Action button with confirmation text.
 * These button are useful for things like delete buttons.
 */
class ConfirmedFormAction extends FormAction {
	protected $confirmation;
	
	/**
	 * Create a new action button.
	 * @param action The method to call when the button is clicked
	 * @param title The label on the button
	 * @param confirmation The message to display in the confirmation box?
	 * @param form The parent form, auto-set when the field is placed inside a form 
	 */
	function __construct($action, $title = "", $confirmation = "Are you sure?", $form = null) {
		$this->confirmation = $confirmation;
		parent::__construct($action, $title, $form);
	}
	function Field() {
		return "<input class=\"action " . $this->extraClass() . "\" id=\"" . $this->id() . "\" type=\"submit\" name=\"{$this->name}\" value=\"{$this->title}\" onclick=\"return confirm('$this->confirmation');\" />";
	}
}


?>