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<?php
/* Icinga Web 2 | (c) 2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Web\Form\Decorator;
use Zend_Form_Decorator_Abstract;
use Icinga\Application\Icinga;
use Icinga\Web\View;
use Icinga\Web\Form;
/**
* Decorator to add an icon and a submit button encapsulated in noscript-tags
*
* The icon is shown in JS environments to indicate that a specific form field does automatically request an update
* of its form upon it has changed. The button allows users in non-JS environments to trigger the update manually.
*/
class Autosubmit extends Zend_Form_Decorator_Abstract
{
/**
* Whether a hidden <span> should be created with the same warning as in the icon label
*
* @var bool
*/
protected $accessible;
/**
* The id used to identify the auto-submit warning associated with the decorated form element
*
* @var string
*/
protected $warningId;
/**
* Set whether a hidden <span> should be created with the same warning as in the icon label
*
* @param bool $state
*
* @return Autosubmit
*/
public function setAccessible($state = true)
{
$this->accessible = (bool) $state;
return $this;
}
/**
* Return whether a hidden <span> is being created with the same warning as in the icon label
*
* @return bool
*/
public function getAccessible()
{
if ($this->accessible === null) {
$this->accessible = $this->getOption('accessible') ?: false;
}
return $this->accessible;
}
/**
* Return the id used to identify the auto-submit warning associated with the decorated element
*
* @param mixed $element The element for which to generate a id
*
* @return string
*/
public function getWarningId($element = null)
{
if ($this->warningId === null) {
$element = $element ?: $this->getElement();
$this->warningId = 'autosubmit_warning_' . $element->getId();
}
return $this->warningId;
}
/**
* Return the current view
*
* @return View
*/
protected function getView()
{
return Icinga::app()->getViewRenderer()->view;
}
/**
* Add a auto-submit icon and submit button encapsulated in noscript-tags to the element
*
* @param string $content The html rendered so far
*
* @return string The updated html
*/
public function render($content = '')
{
if ($content) {
$isForm = $this->getElement() instanceof Form;
$warning = $isForm
? t('This page will be automatically updated upon change of any of this form\'s fields')
: t('This page will be automatically updated upon change of the value');
$content .= $this->getView()->icon('cw', $warning, array(
'aria-hidden' => $isForm ? 'false' : 'true',
'class' => 'spinner autosubmit-info'
));
if (! $isForm && $this->getAccessible()) {
$content = '<span id="'
. $this->getWarningId()
. '" class="sr-only">'
. $warning
. '</span>'
. $content;
}
$content .= sprintf(
'<noscript><button'
. ' name="noscript_apply"'
. ' class="noscript-apply"'
. ' type="submit"'
. ' value="1"'
. ($this->getAccessible() ? ' aria-label="%1$s"' : '')
. ' title="%1$s"'
. '>%2$s</button></noscript>',
$isForm
? t('Push this button to update the form to reflect the changes that were made below')
: t('Push this button to update the form to reflect the change'
. ' that was made in the field on the left'),
$this->getView()->icon('cw') . t('Apply')
);
}
return $content;
}
}
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