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<?php |
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namespace Pageon\Html\Image; |
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use Intervention\Image\Exception\NotReadableException; |
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use Intervention\Image\ImageManager; |
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use Intervention\Image\Image as ScaleableImage; |
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use Spatie\ImageOptimizer\OptimizerChain; |
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use Stitcher\File; |
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use Symfony\Component\Filesystem\Filesystem; |
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use Symfony\Component\Finder\Finder; |
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class ImageFactory |
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{ |
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/** @var \Pageon\Html\Image\Scaler */ |
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private $scaler; |
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/** @var string */ |
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private $sourceDirectory; |
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/** @var string */ |
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private $publicDirectory; |
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/** @var \Intervention\Image\ImageManager */ |
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private $imageManager; |
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/** @var \Spatie\ImageOptimizer\OptimizerChain */ |
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protected $optimizer; |
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/** @var bool */ |
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private $cache = false; |
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public function __construct( |
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string $sourceDirectory, |
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string $publicDirectory, |
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Scaler $scaler, |
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OptimizerChain $optimizer = null |
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) { |
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$this->sourceDirectory = rtrim($sourceDirectory, '/'); |
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$this->publicDirectory = rtrim($publicDirectory, '/'); |
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$this->scaler = $scaler; |
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$this->imageManager = new ImageManager([ |
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'driver' => 'gd', |
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]); |
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$this->optimizer = $optimizer; |
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} |
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public static function make( |
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string $sourceDirectory, |
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string $publicDirectory, |
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Scaler $scaler |
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): ImageFactory |
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{ |
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return new self($sourceDirectory, $publicDirectory, $scaler); |
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} |
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public function enableCaching(bool $cache): ImageFactory |
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{ |
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$this->cache = $cache; |
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return $this; |
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} |
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public function create($src): Image |
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{ |
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$srcPath = ltrim($src, '/'); |
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if ($this->cache && file_exists("{$this->publicDirectory}/{$srcPath}")) { |
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return $this->createCachedImage($srcPath); |
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} |
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$image = Image::make($srcPath); |
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$this->copySourceImageToDestination($srcPath); |
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try { |
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$scaleableImage = $this->imageManager->make("{$this->publicDirectory}/{$srcPath}"); |
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$this->optimize($scaleableImage->basePath()); |
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$variations = $this->scaler->getVariations($scaleableImage); |
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$image->addSrcset($image->src(), $scaleableImage->getWidth()); |
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foreach ($variations as $width => $height) { |
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if (!$width) { |
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continue; |
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} |
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$this->createScaledImage($image, $width, $height, $scaleableImage); |
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} |
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} catch (NotReadableException $exception) { |
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// don't scale if not supported |
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} |
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return $image; |
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} |
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private function createScaledImage( |
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Image $image, |
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int $width, |
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int $height, |
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ScaleableImage $scaleableImage |
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): void { |
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$scaleableImageClone = clone $scaleableImage; |
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$scaledFileName = $this->createScaledFileName($image, $width, $height); |
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$image->addSrcset($scaledFileName, $width); |
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if ($this->cache && file_exists("{$this->publicDirectory}/{$scaledFileName}")) { |
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return; |
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} |
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$scaleableImageClone |
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->resize($width, $height) |
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->save("{$this->publicDirectory}/{$scaledFileName}"); |
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$this->optimize("{$this->publicDirectory}/{$scaledFileName}"); |
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} |
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private function createScaledFileName(Image $image, int $width, int $height): string |
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{ |
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$srcPath = ltrim($image->src(), '/'); |
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$extension = pathinfo($srcPath, PATHINFO_EXTENSION); |
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return str_replace(".{$extension}", "-{$width}x{$height}.{$extension}", $srcPath); |
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} |
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private function copySourceImageToDestination(string $srcPath): void |
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{ |
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$fs = new Filesystem(); |
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$fs->copy(File::path($srcPath), "{$this->publicDirectory}/{$srcPath}"); |
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} |
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private function createCachedImage(string $path): Image |
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{ |
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$image = Image::make($path); |
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$extension = pathinfo($path, PATHINFO_EXTENSION); |
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$imageFilePath = pathinfo($image->src(), PATHINFO_DIRNAME); |
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$imageFileName = pathinfo($image->src(), PATHINFO_FILENAME); |
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$srcsetFiles = Finder::create()->files() |
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->in($this->publicDirectory . $imageFilePath) |
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->name("{$imageFileName}-*.{$extension}"); |
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foreach ($srcsetFiles->getIterator() as $srcsetFile) { |
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$cachedFilename = $srcsetFile->getFilename(); |
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$size = (int) str_replace(".{$extension}", '', str_replace("{$imageFileName}-", '', $cachedFilename)); |
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$image->addSrcset("{$imageFilePath}/{$cachedFilename}", $size); |
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} |
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return $image; |
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} |
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private function optimize(string $path): void |
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{ |
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if (! $this->optimizer) { |
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return; |
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} |
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$this->optimizer->optimize($path); |
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} |
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} |
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pageon /
stitcher-core
