1 | <?php |
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2 | |
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3 | /* |
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4 | * This file is part of the Assetic package, an OpenSky project. |
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5 | * |
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6 | * (c) 2010-2012 OpenSky Project Inc |
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7 | * |
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8 | * For the full copyright and license information, please view the LICENSE |
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9 | * file that was distributed with this source code. |
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10 | */ |
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11 | |
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12 | namespace Assetic; |
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13 | |
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14 | use Assetic\Filter\FilterInterface; |
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15 | |
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16 | /** |
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17 | * Manages the available filters. |
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18 | * |
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19 | * @author Kris Wallsmith <kris.wallsmith@gmail.com> |
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20 | */ |
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21 | class FilterManager |
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22 | { |
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23 | private $filters = array(); |
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24 | |
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25 | public function set($alias, FilterInterface $filter) |
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26 | { |
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27 | $this->checkName($alias); |
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28 | |
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29 | $this->filters[$alias] = $filter; |
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30 | } |
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31 | |
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32 | public function get($alias) |
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33 | { |
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34 | if (!isset($this->filters[$alias])) { |
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35 | throw new \InvalidArgumentException(sprintf('There is no "%s" filter.', $alias)); |
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36 | } |
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37 | |
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38 | return $this->filters[$alias]; |
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39 | } |
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40 | |
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41 | public function has($alias) |
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42 | { |
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43 | return isset($this->filters[$alias]); |
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44 | } |
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45 | |
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46 | public function getNames() |
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47 | { |
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48 | return array_keys($this->filters); |
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49 | } |
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50 | |
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51 | /** |
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52 | * Checks that a name is valid. |
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53 | * |
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54 | * @param string $name An asset name candidate |
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55 | * |
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56 | * @throws \InvalidArgumentException If the asset name is invalid |
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57 | */ |
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58 | protected function checkName($name) |
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59 | { |
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60 | if (!ctype_alnum(str_replace('_', '', $name))) { |
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61 | throw new \InvalidArgumentException(sprintf('The name "%s" is invalid.', $name)); |
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62 | } |
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63 | } |
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64 | } |
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