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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
/**
* Form select element
*
* @author Magento Core Team <core@magentocommerce.com>
*/
namespace Magento\Framework\Data\Form\Element;
use Magento\Framework\App\ObjectManager;
use Magento\Framework\Escaper;
use Magento\Framework\Math\Random;
use Magento\Framework\View\Helper\SecureHtmlRenderer;
/**
* Multi-select form element widget.
*/
class Multiselect extends AbstractElement
{
/**
* @var SecureHtmlRenderer
*/
private $secureRenderer;
/**
* @var Random
*/
private $random;
/**
* @param Factory $factoryElement
* @param CollectionFactory $factoryCollection
* @param Escaper $escaper
* @param array $data
* @param SecureHtmlRenderer|null $secureRenderer
* @param Random|null $random
*/
public function __construct(
Factory $factoryElement,
CollectionFactory $factoryCollection,
Escaper $escaper,
$data = [],
?SecureHtmlRenderer $secureRenderer = null,
?Random $random = null
) {
$secureRenderer = $secureRenderer ?? ObjectManager::getInstance()->get(SecureHtmlRenderer::class);
$random = $random ?? ObjectManager::getInstance()->get(Random::class);
parent::__construct($factoryElement, $factoryCollection, $escaper, $data, $secureRenderer, $random);
$this->setType('select');
$this->setExtType('multiple');
$this->setSize(10);
$this->secureRenderer = $secureRenderer;
$this->random = $random;
}
/**
* Get the name
*
* @return string
*/
public function getName()
{
$name = parent::getName();
if (strpos($name, '[]') === false) {
$name .= '[]';
}
return $name;
}
/**
* Get the element as HTML
*
* @return string
*/
public function getElementHtml()
{
$this->addClass('select multiselect admin__control-multiselect');
$html = '';
if ($this->getCanBeEmpty()) {
$html .= '
<input type="hidden" id="' . $this->getHtmlId() . '_hidden" name="' . parent::getName() . '" value="" />
';
}
if (!empty($this->_data['disabled'])) {
$html .= '<input type="hidden" name="' . parent::getName() . '_disabled" value="" />';
}
$html .= '<select id="' . $this->getHtmlId() . '" name="' . $this->getName() . '" ' . $this->serialize(
$this->getHtmlAttributes()
) . $this->_getUiId() . ' multiple="multiple">' . "\n";
$value = $this->getValue();
if (!is_array($value)) {
$value = explode(',', $value);
}
$values = $this->getValues();
if ($values) {
foreach ($values as $option) {
if (is_array($option['value'])) {
$html .= '<optgroup label="' . $option['label'] . '">' . "\n";
foreach ($option['value'] as $groupItem) {
$html .= $this->_optionToHtml($groupItem, $value);
}
$html .= '</optgroup>' . "\n";
} else {
$html .= $this->_optionToHtml($option, $value);
}
}
}
$html .= '</select>' . "\n";
$html .= $this->getAfterElementHtml();
return $html;
}
/**
* Get the HTML attributes
*
* @return string[]
*/
public function getHtmlAttributes()
{
return [
'title',
'class',
'style',
'onclick',
'onchange',
'disabled',
'size',
'tabindex',
'data-form-part',
'data-role',
'data-action'
];
}
/**
* Get the default HTML
*
* @return string
*/
public function getDefaultHtml()
{
$result = $this->getNoSpan() === true ? '' : '<span class="field-row">' . "\n";
$result .= $this->getLabelHtml();
$result .= $this->getElementHtml();
if ($this->getSelectAll() && $this->getDeselectAll()) {
$random = $this->random->getRandomString(4);
$selectAllId = 'selId' .$random;
$deselectAllId = 'deselId' .$random;
$result .= '<a href="#" id="' .$selectAllId .'">' .$this->getSelectAll()
.'</a> <span class="separator"> | </span>';
$result .= '<a href="#" id="' .$deselectAllId .'">' .$this->getDeselectAll() .'</a>';
$result .= $this->secureRenderer->renderEventListenerAsTag(
'onclick',
"return {$this->getJsObjectName()}.selectAll();\nreturn false;",
"#{$selectAllId}"
);
$result .= $this->secureRenderer->renderEventListenerAsTag(
'onclick',
"return {$this->getJsObjectName()}.deselectAll();",
"#{$deselectAllId}"
);
}
$result .= $this->getNoSpan() === true ? '' : '</span>' . "\n";
$script = ' var ' . $this->getJsObjectName() . ' = {' . "\n";
$script .= ' selectAll: function() { ' . "\n";
$script .= ' var sel = $("' . $this->getHtmlId() . '");' . "\n";
$script .= ' for(var i = 0; i < sel.options.length; i ++) { ' . "\n";
$script .= ' sel.options[i].selected = true; ' . "\n";
$script .= ' } ' . "\n";
$script .= ' return false; ' . "\n";
$script .= ' },' . "\n";
$script .= ' deselectAll: function() {' . "\n";
$script .= ' var sel = $("' . $this->getHtmlId() . '");' . "\n";
$script .= ' for(var i = 0; i < sel.options.length; i ++) { ' . "\n";
$script .= ' sel.options[i].selected = false; ' . "\n";
$script .= ' } ' . "\n";
$script .= ' return false; ' . "\n";
$script .= ' }' . "\n";
$script .= ' }' . "\n";
$result .= $this->secureRenderer->renderTag(
'script',
['type' => 'text/javascript'],
$script,
false
);
return $result;
}
/**
* Get the name of the JS object
*
* @return string
*/
public function getJsObjectName()
{
return $this->getHtmlId() . 'ElementControl';
}
/**
* Render an option for the select.
*
* @param array $option
* @param string[] $selected
* @return string
*/
protected function _optionToHtml($option, $selected)
{
$optionId = 'optId' .$this->random->getRandomString(8);
$html = '<option value="' . $this->_escape($option['value']) . '" id="' . $optionId . '" ';
$html .= isset($option['title']) ? 'title="' . $this->_escape($option['title']) . '"' : '';
if (in_array((string)$option['value'], $selected)) {
$html .= ' selected="selected"';
}
$html .= '>' . $this->_escape($option['label']) . '</option>' . "\n";
if (!empty($option['style'])) {
$html .= $this->secureRenderer->renderStyleAsTag($option['style'], "#$optionId");
}
return $html;
}
}