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<?php
namespace Drupal\toolbar\Element;
use Drupal\Core\Render\Element\RenderElement;
use Drupal\Core\Url;
/**
* Provides a toolbar item that is wrapped in markup for common styling.
*
* The 'tray' property contains a renderable array.
*
* @RenderElement("toolbar_item")
*/
class ToolbarItem extends RenderElement {
/**
* {@inheritdoc}
*/
public function getInfo() {
$class = get_class($this);
return [
'#pre_render' => [
[$class, 'preRenderToolbarItem'],
],
'tab' => [
'#type' => 'link',
'#title' => NULL,
'#url' => Url::fromRoute('<front>'),
],
];
}
/**
* Provides markup for associating a tray trigger with a tray element.
*
* A tray is a responsive container that wraps renderable content. Trays
* present content well on small and large screens alike.
*
* @param array $element
* A renderable array.
*
* @return array
* A renderable array.
*/
public static function preRenderToolbarItem($element) {
$id = $element['#id'];
// Provide attributes for a toolbar item.
$attributes = [
'id' => $id,
];
// If tray content is present, markup the tray and its associated trigger.
if (!empty($element['tray'])) {
// Provide attributes necessary for trays.
$attributes += [
'data-toolbar-tray' => $id . '-tray',
'aria-owns' => $id . '-tray',
'role' => 'button',
'aria-pressed' => 'false',
];
// Merge in module-provided attributes.
$element['tab'] += ['#attributes' => []];
$element['tab']['#attributes'] += $attributes;
$element['tab']['#attributes']['class'][] = 'trigger';
// Provide attributes for the tray theme wrapper.
$attributes = [
'id' => $id . '-tray',
'data-toolbar-tray' => $id . '-tray',
];
// Merge in module-provided attributes.
if (!isset($element['tray']['#wrapper_attributes'])) {
$element['tray']['#wrapper_attributes'] = [];
}
$element['tray']['#wrapper_attributes'] += $attributes;
$element['tray']['#wrapper_attributes']['class'][] = 'toolbar-tray';
}
$element['tab']['#attributes']['class'][] = 'toolbar-item';
return $element;
}
}