[7265] | 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\Asset\Iterator; |
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| 13 | |
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| 14 | use Assetic\Asset\AssetCollectionInterface; |
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| 15 | |
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| 16 | /** |
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| 17 | * Iterates over an asset collection. |
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| 18 | * |
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| 19 | * The iterator is responsible for cascading filters and target URL patterns |
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| 20 | * from parent to child assets. |
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| 21 | * |
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| 22 | * @author Kris Wallsmith <kris.wallsmith@gmail.com> |
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| 23 | */ |
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| 24 | class AssetCollectionIterator implements \RecursiveIterator |
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| 25 | { |
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| 26 | private $assets; |
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| 27 | private $filters; |
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| 28 | private $output; |
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| 29 | private $clones; |
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| 30 | |
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| 31 | public function __construct(AssetCollectionInterface $coll, \SplObjectStorage $clones) |
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| 32 | { |
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| 33 | $this->assets = $coll->all(); |
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| 34 | $this->filters = $coll->getFilters(); |
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| 35 | $this->output = $coll->getTargetPath(); |
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| 36 | $this->clones = $clones; |
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| 37 | |
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| 38 | if (false === $pos = strpos($this->output, '.')) { |
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| 39 | $this->output .= '_*'; |
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| 40 | } else { |
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| 41 | $this->output = substr($this->output, 0, $pos).'_*'.substr($this->output, $pos); |
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| 42 | } |
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| 43 | } |
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| 44 | |
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| 45 | /** |
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| 46 | * Returns a copy of the current asset with filters and a target URL applied. |
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| 47 | * |
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| 48 | * @param Boolean $raw Returns the unmodified asset if true |
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| 49 | * @return \Assetic\Asset\AssetInterface |
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| 50 | */ |
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| 51 | public function current($raw = false) |
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| 52 | { |
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| 53 | $asset = current($this->assets); |
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| 54 | |
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| 55 | if ($raw) { |
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| 56 | return $asset; |
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| 57 | } |
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| 58 | |
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| 59 | // clone once |
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| 60 | if (!isset($this->clones[$asset])) { |
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| 61 | $clone = $this->clones[$asset] = clone $asset; |
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| 62 | |
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| 63 | // generate a target path based on asset name |
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| 64 | $name = sprintf('%s_%d', pathinfo($asset->getSourcePath(), PATHINFO_FILENAME) ?: 'part', $this->key() + 1); |
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| 65 | $clone->setTargetPath(str_replace('*', $name, $this->output)); |
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| 66 | } else { |
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| 67 | $clone = $this->clones[$asset]; |
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| 68 | } |
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| 69 | |
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| 70 | // cascade filters |
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| 71 | foreach ($this->filters as $filter) { |
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| 72 | $clone->ensureFilter($filter); |
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| 73 | } |
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| 74 | |
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| 75 | return $clone; |
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| 76 | } |
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| 77 | |
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| 78 | public function key() |
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| 79 | { |
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| 80 | return key($this->assets); |
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| 81 | } |
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| 82 | |
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| 83 | public function next() |
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| 84 | { |
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| 85 | return next($this->assets); |
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| 86 | } |
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| 87 | |
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| 88 | public function rewind() |
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| 89 | { |
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| 90 | return reset($this->assets); |
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| 91 | } |
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| 92 | |
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| 93 | public function valid() |
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| 94 | { |
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| 95 | return false !== current($this->assets); |
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| 96 | } |
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| 97 | |
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| 98 | public function hasChildren() |
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| 99 | { |
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| 100 | return current($this->assets) instanceof AssetCollectionInterface; |
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| 101 | } |
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| 102 | |
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| 103 | /** |
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| 104 | * @uses current() |
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| 105 | */ |
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| 106 | public function getChildren() |
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| 107 | { |
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| 108 | return new self($this->current(), $this->clones); |
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| 109 | } |
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| 110 | } |
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