[ticket/15538] Revert back to Icon function

PHPBB3-15538

phpBB/phpbb/template/twig/extension/icon.php

@@ -1,150 +0,0 @@
-<?php
-/**
- *
- * This file is part of the phpBB Forum Software package.
- *
- * @copyright (c) phpBB Limited <https://www.phpbb.com>
- * @license GNU General Public License, version 2 (GPL-2.0)
- *
- * For full copyright and license information, please see
- * the docs/CREDITS.txt file.
- *
- */
-
-namespace phpbb\template\twig\extension;
-
-use phpbb\template\twig\environment;
-
-class icon extends \Twig\Extension\AbstractExtension
-{
-	/** @var \phpbb\user */
-	protected $user;
-
-	/**
-	 * Constructor.
-	 *
-	 * @param \phpbb\user	$user			User object
-	 */
-	public function __construct(\phpbb\user $user)
-	{
-		$this->user = $user;
-	}
-
-	/**
-	 * Returns the name of this extension.
-	 *
-	 * @return string						The extension name
-	 */
-	public function getName()
-	{
-		return 'icon';
-	}
-
-	/**
-	 * Returns a list of filters to add to the existing list.
-	 *
-	 * @return \Twig\TwigFilter[]			Array of twig filters
-	 */
-	public function getFilters()
-	{
-		return [
-			new \Twig\TwigFilter('png_path', [$this, 'png_path'], ['needs_environment' => true]),
-		];
-	}
-
-	/**
-	 * Returns a list of functions to add to the existing list.
-	 *
-	 * @return \Twig\TwigFunction[]			Array of twig functions
-	 */
-	public function getFunctions()
-	{
-		return [
-			new \Twig\TwigFunction('Svg_clean', [$this, 'svg_clean'], ['needs_environment' => true]),
-		];
-	}
-
-	/**
-	 * Create a path to a PNG template icon.
-	 *
-	 * @param environment	$environment	Twig environment object
-	 * @param string		$icon			The icon name
-	 * @return string
-	 */
-	public function png_path(environment $environment, $icon)
-	{
-		$board_url	= defined('PHPBB_USE_BOARD_URL_PATH') && PHPBB_USE_BOARD_URL_PATH;
-		$web_path	= $board_url ? generate_board_url() . '/' : $environment->get_web_root_path();
-		$style_path	= $this->user->style['style_path'];
-
-		return "{$web_path}styles/{$style_path}/theme/icons/png/{$icon}.png";
-	}
-
-	/**
-	 * Load and clean an SVG template icon.
-	 *
-	 * @param environment	$environment	Twig environment object
-	 * @param string		$icon			The icon name
-	 * @return string
-	 */
-	public function svg_clean(environment $environment, $icon)
-	{
-		try
-		{
-			$file = $environment->load('icons/svg/' . $icon . '.svg');
-		}
-		catch (\Twig\Error\Error $e)
-		{
-			return '';
-		}
-
-		$src = $file->getSourceContext();
-		$svg = $src->getCode();
-
-		$doc = new \DOMDocument();
-		$doc->preserveWhiteSpace = false;
-		$doc->strictErrorChecking = false;
-
-		if (!$doc->loadXML($svg))
-		{
-			return '';
-		}
-
-		foreach ($doc->childNodes as $child)
-		{
-			if ($child->nodeType === XML_DOCUMENT_TYPE_NODE)
-			{
-				$child->parentNode->removeChild($child);
-			}
-		}
-
-		$xpath = new \DOMXPath($doc);
-
-		foreach ($xpath->query('//svg | //title') as $element)
-		{
-			if ($element->nodeName === 'svg')
-			{
-				$children = [];
-
-				/** @var \DOMNode $node */
-				foreach ($element->childNodes as $node)
-				{
-					$children[] = $node;
-				}
-
-				/** @var \DOMNode $child */
-				foreach ($children as $child)
-				{
-					$element->parentNode->insertBefore($child, $element);
-				}
-			}
-
-			$element->parentNode->removeChild($element);
-		}
-
-		$string = $doc->saveXML($doc->documentElement, LIBXML_NOEMPTYTAG);
-		$string = preg_replace('/\s+/', ' ', $string);
-
-		return $string;
-	}
-}