[7575] | 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 | use Assetic\Asset\FileAsset; |
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| 16 | use Assetic\Asset\HttpAsset; |
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| 17 | |
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| 18 | /** |
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| 19 | * Inlines imported stylesheets. |
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| 20 | * |
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| 21 | * @author Kris Wallsmith <kris.wallsmith@gmail.com> |
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| 22 | */ |
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| 23 | class CssImportFilter extends BaseCssFilter |
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| 24 | { |
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| 25 | private $importFilter; |
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| 26 | |
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| 27 | /** |
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| 28 | * Constructor. |
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| 29 | * |
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| 30 | * @param FilterInterface $importFilter Filter for each imported asset |
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| 31 | */ |
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| 32 | public function __construct(FilterInterface $importFilter = null) |
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| 33 | { |
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| 34 | $this->importFilter = $importFilter ?: new CssRewriteFilter(); |
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| 35 | } |
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| 36 | |
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| 37 | public function filterLoad(AssetInterface $asset) |
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| 38 | { |
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| 39 | $importFilter = $this->importFilter; |
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| 40 | $sourceRoot = $asset->getSourceRoot(); |
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| 41 | $sourcePath = $asset->getSourcePath(); |
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| 42 | |
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| 43 | $callback = function($matches) use ($importFilter, $sourceRoot, $sourcePath) { |
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| 44 | if (!$matches['url'] || null === $sourceRoot) { |
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| 45 | return $matches[0]; |
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| 46 | } |
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| 47 | |
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| 48 | $importRoot = $sourceRoot; |
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| 49 | |
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| 50 | if (false !== strpos($matches['url'], '://')) { |
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| 51 | // absolute |
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| 52 | list($importScheme, $tmp) = explode('://', $matches['url'], 2); |
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| 53 | list($importHost, $importPath) = explode('/', $tmp, 2); |
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| 54 | $importRoot = $importScheme.'://'.$importHost; |
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| 55 | } elseif (0 === strpos($matches['url'], '//')) { |
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| 56 | // protocol-relative |
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| 57 | list($importHost, $importPath) = explode('/', substr($matches['url'], 2), 2); |
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| 58 | $importHost = '//'.$importHost; |
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| 59 | } elseif ('/' == $matches['url'][0]) { |
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| 60 | // root-relative |
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| 61 | $importPath = substr($matches['url'], 1); |
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| 62 | } elseif (null !== $sourcePath) { |
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| 63 | // document-relative |
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| 64 | $importPath = $matches['url']; |
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| 65 | if ('.' != $sourceDir = dirname($sourcePath)) { |
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| 66 | $importPath = $sourceDir.'/'.$importPath; |
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| 67 | } |
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| 68 | } else { |
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| 69 | return $matches[0]; |
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| 70 | } |
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| 71 | |
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| 72 | // ignore other imports |
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| 73 | if ('css' != pathinfo($importPath, PATHINFO_EXTENSION)) { |
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| 74 | return $matches[0]; |
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| 75 | } |
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| 76 | |
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| 77 | $importSource = $importRoot.'/'.$importPath; |
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| 78 | if (false !== strpos($importSource, '://') || 0 === strpos($importSource, '//')) { |
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| 79 | $import = new HttpAsset($importSource, array($importFilter), true); |
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| 80 | } elseif (!file_exists($importSource)) { |
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| 81 | // ignore not found imports |
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| 82 | return $matches[0]; |
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| 83 | } else { |
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| 84 | $import = new FileAsset($importSource, array($importFilter), $importRoot, $importPath); |
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| 85 | } |
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| 86 | |
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| 87 | $import->setTargetPath($sourcePath); |
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| 88 | |
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| 89 | return $import->dump(); |
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| 90 | }; |
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| 91 | |
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| 92 | $content = $asset->getContent(); |
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| 93 | $lastHash = md5($content); |
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| 94 | |
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| 95 | do { |
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| 96 | $content = $this->filterImports($content, $callback); |
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| 97 | $hash = md5($content); |
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| 98 | } while ($lastHash != $hash && $lastHash = $hash); |
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| 99 | |
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| 100 | $asset->setContent($content); |
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| 101 | } |
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| 102 | |
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| 103 | public function filterDump(AssetInterface $asset) |
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| 104 | { |
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| 105 | } |
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| 106 | } |
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