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<?php
/**
* A hidden button used to submit the form when the user presses Enter
*
* PHP version 5
*
* LICENSE:
*
* Copyright (c) 2006-2010, Alexey Borzov <avb@php.net>,
* Bertrand Mansion <golgote@mamasam.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * The names of the authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @category HTML
* @package HTML_QuickForm2
* @author Alexey Borzov <avb@php.net>
* @author Bertrand Mansion <golgote@mamasam.com>
* @license http://opensource.org/licenses/bsd-license.php New BSD License
* @version SVN: $Id: DefaultAction.php 293465 2010-01-12 18:24:37Z avb $
* @link http://pear.php.net/package/HTML_QuickForm2
*/
/** Class for <input type="image" /> elements */
// require_once 'HTML/QuickForm2/Element/InputImage.php';
/**
* A hidden button used to submit the form when the user presses Enter
*
* This element is used by {@link HTML_QuickForm2_Controller_Page::setDefaultAction()}
* to define the action that will take place if the user presses Enter on one
* of the form elements instead of explicitly clicking one of the submit
* buttons. Injecting a hidden <input type="image" /> element is about the
* only cross-browser way to achieve this.
*
* @category HTML
* @package HTML_QuickForm2
* @author Alexey Borzov <avb@php.net>
* @author Bertrand Mansion <golgote@mamasam.com>
* @version Release: @package_version@
* @link http://www.alanflavell.org.uk/www/formquestion.html
* @link http://muffinresearch.co.uk/archives/2005/12/08/fun-with-multiple-submit-buttons/
*/
class HTML_QuickForm2_Controller_DefaultAction
extends HTML_QuickForm2_Element_InputImage
{
protected $attributes = array('type' => 'image', 'id' => '_qf_default',
'width' => '1', 'height' => '1');
/**
* Disallow changing the 'id' attribute
*
* @param string Attribute name
* @param string Attribute value, null if attribute is being removed
*/
protected function onAttributeChange($name, $value = null)
{
if ('id' == $name) {
throw new HTML_QuickForm2_InvalidArgumentException(
"Attribute 'id' is read-only"
);
}
parent::onAttributeChange($name, $value);
}
/**
* This element is rendered using renderHidden() method
*
* renderHidden() is used to
* - prevent using the standard element template as this button is
* expected to be hidden
* - render it above all other submit buttons since hidden elements
* are usually at the top of the form
*
* @param HTML_QuickForm2_Renderer Renderer instance
* @return HTML_QuickForm2_Renderer
*/
public function render(HTML_QuickForm2_Renderer $renderer)
{
$renderer->renderHidden($this);
return $renderer;
}
}
?>
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