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\Filter; |
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13 | |
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14 | use Assetic\Asset\AssetInterface; |
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15 | |
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16 | /** |
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17 | * A collection of 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 FilterCollection implements FilterInterface, \IteratorAggregate, \Countable |
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22 | { |
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23 | private $filters = array(); |
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24 | |
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25 | public function __construct($filters = array()) |
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26 | { |
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27 | foreach ($filters as $filter) { |
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28 | $this->ensure($filter); |
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29 | } |
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30 | } |
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31 | |
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32 | /** |
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33 | * Checks that the current collection contains the supplied filter. |
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34 | * |
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35 | * If the supplied filter is another filter collection, each of its |
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36 | * filters will be checked. |
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37 | */ |
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38 | public function ensure(FilterInterface $filter) |
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39 | { |
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40 | if ($filter instanceof \Traversable) { |
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41 | foreach ($filter as $f) { |
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42 | $this->ensure($f); |
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43 | } |
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44 | } elseif (!in_array($filter, $this->filters, true)) { |
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45 | $this->filters[] = $filter; |
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46 | } |
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47 | } |
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48 | |
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49 | public function all() |
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50 | { |
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51 | return $this->filters; |
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52 | } |
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53 | |
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54 | public function clear() |
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55 | { |
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56 | $this->filters = array(); |
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57 | } |
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58 | |
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59 | public function filterLoad(AssetInterface $asset) |
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60 | { |
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61 | foreach ($this->filters as $filter) { |
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62 | $filter->filterLoad($asset); |
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63 | } |
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64 | } |
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65 | |
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66 | public function filterDump(AssetInterface $asset) |
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67 | { |
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68 | foreach ($this->filters as $filter) { |
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69 | $filter->filterDump($asset); |
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70 | } |
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71 | } |
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72 | |
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73 | public function getIterator() |
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74 | { |
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75 | return new \ArrayIterator($this->filters); |
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76 | } |
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77 | |
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78 | public function count() |
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79 | { |
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80 | return count($this->filters); |
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81 | } |
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82 | } |
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