SeoBreadcrumbs.php
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<?php
/**
* Created by PhpStorm.
* User: stes
* Date: 18.09.17
* Time: 12:20
* @var $this \frontend\widgets\SeoBreadcrumbs
*/
namespace frontend\widgets;
use yii\base\InvalidConfigException;
use yii\helpers\ArrayHelper;
use yii\helpers\Html;
use yii\helpers\Url;
use yii\widgets\Breadcrumbs;
class SeoBreadcrumbs extends Breadcrumbs
{
public $tag = 'ul';
public $options = [
'class' => 'breadcrumb',
'itemscope' => true,
'itemtype' => " http://schema.org/BreadcrumbList"
];
public $encodeLabels = false;
public $itemTemplate = "<li itemprop=\"itemListElement\" itemscope itemtype=\"http://schema.org/ListItem\">{link}<meta itemprop=\"position\" content=\"{number}\" /></li>\n";
public $homeLink = [
'label' => '<span itemprop="name">Интернет-магазин светильников</span>',
'url' => '/',
'itemprop' => 'item',
];
public $activeItemTemplate = '<li class="active" itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem"><span itemprop="name">{link}<meta itemprop="position" content="{number}" /></span></li>';
public function run()
{
if (empty($this->links)) {
return;
}
$links = [];
if ($this->homeLink === null) {
$links[] = $this->renderItem_([
'label' => Yii::t('yii', 'Home'),
'url' => Yii::$app->homeUrl,
], $this->itemTemplate,1);
} elseif ($this->homeLink !== false) {
$links[] = $this->renderItem_($this->homeLink, $this->itemTemplate, 1, true);
}
foreach ($this->links as $key => $link) {
if (!is_array($link)) {
$link = ['label' => $link];
}
$links[] = $this->renderItem_($link, isset($link['url']) ? $this->itemTemplate : $this->activeItemTemplate, $key + 2);
}
echo Html::tag($this->tag, implode('', $links), $this->options);
}
protected function renderItem_($link, $template, $number, $home = false)
{
$encodeLabel = ArrayHelper::remove($link, 'encode', $this->encodeLabels);
if (array_key_exists('label', $link)) {
$label = $encodeLabel ? Html::encode($link['label']) : $link['label'];
} else {
throw new InvalidConfigException('The "label" element is required for each link.');
}
if (isset($link['template'])) {
$template = $link['template'];
}
if (isset($link['url'])) {
$options = $link;
unset($options['template'], $options['label'], $options['url']);
if (!$home){
$label = "<link itemprop='item' href=" .
\Yii::$app->request->getUrl() .
"><span itemprop='name'>" .
$label . "</span>";
}
$link = Html::a($label, $link['url'], $options);
} else {
$link = "<link itemprop=\"item\" href=".\Yii::$app->request->getUrl().">$label";
}
return strtr($template, ['{link}' => $link, '{number}' => $number]);
}
}