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<?php |
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/** |
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* This file is part of BraincraftedBootstrapBundle. |
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* (c) 2012-2013 by Florian Eckerstorfer |
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*/ |
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namespace Braincrafted\Bundle\BootstrapBundle\Twig; |
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use Twig_Extension; |
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use Twig_SimpleFilter; |
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use Twig_SimpleFunction; |
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/** |
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* BootstrapIconExtension |
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* |
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* @package BraincraftedBootstrapBundle |
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* @subpackage Twig |
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* @author Florian Eckerstorfer <[email protected]> |
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* @copyright 2012-2013 Florian Eckerstorfer |
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* @license http://opensource.org/licenses/MIT The MIT License |
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* @link http://bootstrap.braincrafted.com Bootstrap for Symfony2 |
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*/ |
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class BootstrapIconExtension extends Twig_Extension |
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{ |
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/** |
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* @var string |
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*/ |
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private $iconPrefix; |
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/** |
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* @var string |
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*/ |
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private $iconTag; |
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/** |
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* @param string $iconPrefix |
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* @param string $iconTag |
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*/ |
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public function __construct($iconPrefix, $iconTag = 'span') |
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{ |
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$this->iconPrefix = $iconPrefix; |
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$this->iconTag = $iconTag; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getFilters() |
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{ |
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return array( |
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new Twig_SimpleFilter( |
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'parse_icons', |
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array($this, 'parseIconsFilter'), |
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array('pre_escape' => 'html', 'is_safe' => array('html')) |
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) |
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); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getFunctions() |
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{ |
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return array( |
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new Twig_SimpleFunction( |
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'icon', |
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array($this, 'iconFunction'), |
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array('pre_escape' => 'html', 'is_safe' => array('html')) |
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) |
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); |
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} |
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/** |
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* Parses the given string and replaces all occurrences of .icon-[name] with the corresponding icon. |
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* |
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* @param string $text The text to parse |
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* |
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* @return string The HTML code with the icons |
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*/ |
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public function parseIconsFilter($text) |
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{ |
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$that = $this; |
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return preg_replace_callback( |
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'/\.([a-z]+)-([a-z0-9+-]+)/', |
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function ($matches) use ($that) { |
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return $that->iconFunction($matches[2], $matches[1]); |
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}, |
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$text |
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); |
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} |
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/** |
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* Returns the HTML code for the given icon. |
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* |
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* @param string $icon The name of the icon |
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* @param string $iconSet The icon-set name |
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* |
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* @return string The HTML code for the icon |
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*/ |
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public function iconFunction($icon, $iconSet = 'icon') |
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{ |
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if ($iconSet == 'icon') $iconSet = $this->iconPrefix; |
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$icon = str_replace('+', ' '.$iconSet.'-', $icon); |
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return sprintf('<%1$s class="%2$s %2$s-%3$s"></%1$s>', $this->iconTag, $iconSet, $icon); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getName() |
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{ |
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return 'braincrafted_bootstrap_icon'; |
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} |
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} |
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braincrafted /
bootstrap-bundle
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