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TwigExtensions.php

<?php

namespace app\helpers;

use app\helpers\Typo;

/**
 *
 */
class TwigExtensions extends \Twig_Extension
{


    /**
     * Returns the count of the element
     *
     * @param array $value
     * @return int
     */
    public function count($value)
    {
        if (is_array($value))
        {
            return count($value);
        }

        return -1;
    }

    /**
     * Returns the defined functions
     *
     * @return array
     */
    public function getFunctions()
    {
//        return array(
//            'typo' => new \Twig_Function_Method(\Typo(), 'pageHeader'),
//        );
    }


    public function getFilters()
    {
        return array(
            'count' => new \Twig_Filter_Method($this, 'count')
        );
    }



    /**
     * Returns the name of the extension.
     *
     * @return string The extension name
     */
    function getName()
    {
        return __CLASS__;
    }


}

TwigViewRenderer.php

<?php
/**
 * Twig view renderer class file.
 *
 * @link http://www.yiiframework.com/
 * @copyright Copyright &copy; 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

namespace app\helpers;

use Yii;
use yii\base\View;
use yii\twig\ViewRenderer;
use yii\helpers\Html;

/**
 * TwigViewRenderer allows you to use Twig templates in views.
 *
 * @author Pascal Brewing <[email protected]>
 * @since 2.0
 */
class TwigViewRenderer extends ViewRenderer
{

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

        $this->twig->addGlobal('typo',);
        $this->loadExtensions();
	}

    /**
     * Loads predefined extensions
     */
    protected function loadExtensions()
    {
        $this->addTwigExtension(new TwigExtensions());

        if(YII_DEBUG)
            $this->addTwigExtension(new \Twig_Extension_Debug());
    }

    /**
     * Adds an extension
     *
     * @param Twig_ExtensionInterface $extension
     */
    public function addTwigExtension(\Twig_ExtensionInterface $extension)
    {
        $this->twig->addExtension($extension);
    }

}

Typo.php

<?php
namespace app\helpers;

use yii\helpers\ArrayHelper;
use yii\helpers\Html;
use yii\helpers\VarDumper;

/**
 * Class Typo
 * @author: Pascal Brewing < [email protected] >
 * @see http://getbootstrap.com/
 * @since 2.0
 * @package common\helpers
 */
class Typo {

    /**
     * @param string $title
     * @param string $small
     * @param array $htmlOptions
     * @return string
     */
    public static function pageHeader($title ="",$small="",$htmlOptions = array('class' => 'page-header')){

        $headerOptions = ArrayHelper::getValue($htmlOptions,'headerOptions',false);

        if($headerOptions)
            $htmlOptions = $headerOptions;

        $content = '';
        if(!empty($title) || !empty($small))
            $content .= Html::beginTag('h1')."\n".$title."\n";

        if(!empty($small))
            $content .= Html::tag('small',$small)."\n";

        if(!empty($title) || !empty($small))
            $content .= Html::endTag('h1')."\n";

        return Html::tag('div',$content,$htmlOptions);
    }
    /**
     * @param string $title
     * @param string $small
     * @param array $htmlOptions
     * @return string
     */
    public function pageHeaderTwig($title ="",$small="",$htmlOptions = array('class' => 'page-header')){

        $headerOptions = ArrayHelper::getValue($htmlOptions,'headerOptions',false);

        if($headerOptions)
            $htmlOptions = $headerOptions;

        $content = '';
        if(!empty($title) || !empty($small))
            $content .= Html::beginTag('h1')."\n".$title."\n";

        if(!empty($small))
            $content .= Html::tag('small',$small)."\n";

        if(!empty($title) || !empty($small))
            $content .= Html::endTag('h1')."\n";

        return Html::tag('div',$content,$htmlOptions);
    }

    public function test($string){
        return $string;
    }

    /**
     * <strong $htmlOptions>$strong</strong>$body
     * @param bool $strong
     * @param bool $body
     * @param array $htmlOptions
     * @return bool|string
     */
    public static function AlertBodyHelper($strong = false,$body=false,$htmlOptions=[]){
        if($strong)
            $body = Html::tag('strong',$strong,$htmlOptions).' '.$body;
        return $body;
    }

    /**
     * @see http://getbootstrap.com/css/#type-blockquotes
     * <blockquote>
     * <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
     * </blockquote>
     * ´´´php
     * htmlOptions
     * [
     *  'smallOptions' => ['class'...]
     *  'blockOptions' => ['class'...]
     *  'emphasisOption' => ['class'...]
     *  'pull' => ['right']
     * ]
     * ´´´
     * @param bool $body
     * @param bool $small
     * @param array $htmlOptions
     * @return string
     */
    public static function blockquote($body=false,$small=false,$htmlOptions=[]){

        $smallOptions = ArrayHelper::getValue($htmlOptions,'smallOptions',false);
        $blockOptions = ArrayHelper::getValue($htmlOptions,'blockOptions',[]);
        $emphasisOption = ArrayHelper::getValue($htmlOptions,'emphasisOption',false);
        $pull = ArrayHelper::getValue($htmlOptions,'pull',false);

        if($pull)
            Html::addCssClass($blockOptions,'pull-'.$pull);

        $content = Html::beginTag('blockquote',$blockOptions);
        $content .= Html::tag('p',$body,$emphasisOption?$emphasisOption:[]);

        if(!empty($small))
            $content .= Html::tag('small',$small,$smallOptions?$smallOptions:[]);

        $content.=Html::endTag('blockquote');
        return $content;

    }

} 

ViewRenderer.php

<?php
/**
 * Twig view renderer class file.
 *
 * @link http://www.yiiframework.com/
 * @copyright Copyright &copy; 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

namespace yii\twig;

use Yii;
use yii\base\View;
use yii\base\ViewRenderer as BaseViewRenderer;
use yii\helpers\Html;

/**
 * TwigViewRenderer allows you to use Twig templates in views.
 *
 * @author Alexander Makarov <[email protected]>
 * @since 2.0
 */
class ViewRenderer extends BaseViewRenderer
{
	/**
	 * @var string the directory or path alias pointing to where Twig cache will be stored.
	 */
	public $cachePath = '@runtime/Twig/cache';

	/**
	 * @var array Twig options
	 * @see http://twig.sensiolabs.org/doc/api.html#environment-options
	 */
	public $options = [];

	/**
	 * @var \Twig_Environment
	 */
	public $twig;

	public function init()
	{
		$loader = new \Twig_Loader_String();

		$this->twig = new \Twig_Environment($loader, array_merge([
			'cache' => Yii::getAlias($this->cachePath),
		], $this->options));

		$this->twig->addFunction('path', new \Twig_Function_Function(function ($path, $args = []) {
			return Html::url(array_merge([$path], $args));
		}));

		$this->twig->addGlobal('app', \Yii::$app);
	}

	/**
	 * Renders a view file.
	 *
	 * This method is invoked by [[View]] whenever it tries to render a view.
	 * Child classes must implement this method to render the given view file.
	 *
	 * @param View $view the view object used for rendering the file.
	 * @param string $file the view file.
	 * @param array $params the parameters to be passed to the view file.
	 *
	 * @return string the rendering result
	 */
	public function render($view, $file, $params)
	{
		$this->twig->addGlobal('this', $view);
		return $this->twig->render(file_get_contents($file), $params);
	}
}