NavigationWidget.php

<?php

/**
 * @link    http://foundationize.com
 * @package shqear/yii2-foundation6
 * @version 1.0.0
 */

namespace shqear\foundation6;

use Yii;
use yii\helpers\Html;
use yii\helpers\ArrayHelper;

/**
 * Description of NavigationWidget
 *

 */
class NavigationWidget extends Widget
{

    public $items = [];
    public $encodeLabels = true;
    public $activateItems = true;
    public $activateParents = false;

    /**
     * @var string the route used to determine if a menu item is active or not.
     * If not set, it will use the route of the current request.
     * @see params
     * @see isItemActive
     */
    public $route;

    /**
     * @var array the parameters used to determine if a menu item is active or not.
     * If not set, it will use `$_GET`.
     * @see route
     * @see isItemActive
     */
    public $params;

    /**
     *
     */
    public function init()
    {
        parent::init();

        if ($this->route === null && Yii::$app->controller !== null) {
            $this->route = Yii::$app->controller->getRoute();
        }
        if ($this->params === null) {
            $this->params = Yii::$app->request->getQueryParams();
        }
    }

    /**
     *
     * @param array $item
     * @return boolean
     */
    protected function isItemActive($item)
    {
        if (isset($item['url']) && is_array($item['url']) && isset($item['url'][0])) {
            $route = $item['url'][0];
            if ($route[0] !== '/' && Yii::$app->controller) {
                $route = Yii::$app->controller->module->getUniqueId() . '/' . $route;
            }
            if (ltrim($route, '/') !== $this->route) {
                return false;
            }
            unset($item['url']['#']);
            if (count($item['url']) > 1) {
                foreach (array_splice($item['url'], 1) as $name => $value) {
                    if ($value !== null && (!isset($this->params[$name]) || $this->params[$name] != $value)) {
                        return false;
                    }
                }
            }
            return true;
        }
        return false;
    }

    /**
     * Check to see if a child item is active optionally activating the parent.
     * @param array $items @see items
     * @param boolean $active should the parent be active too
     * @return array @see items
     */
    protected function isChildActive($items, &$active)
    {
        foreach ($items as $i => $child) {
            if (ArrayHelper::remove($items[$i], 'active', false) || $this->isItemActive($child)) {
                Html::addCssClass($items[$i]['options'], 'active');
                if ($this->activateParents) {
                    $active = true;
                }
            }
        }
        return $items;
    }

}