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<?php |
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namespace Brendt\Image; |
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use Brendt\Image\Config\ResponsiveFactoryConfigurator; |
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use Brendt\Image\Exception\FileNotFoundException; |
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use Intervention\Image\ImageManager; |
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use Symfony\Component\Filesystem\Filesystem; |
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use Symfony\Component\Finder\Finder; |
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use Symfony\Component\Finder\SplFileInfo; |
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class ResponsiveFactory |
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{ |
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/** |
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* The image driver to use. |
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* Available drivers: 'gd' and 'imagick'. |
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* |
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* @var string |
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*/ |
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protected $driver; |
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/** |
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* The source path to load images from. |
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* |
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* @var string |
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*/ |
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protected $sourcePath; |
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/** |
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* The public path to save rendered images. |
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* |
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* @var string |
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*/ |
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protected $publicPath; |
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/** |
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* The minimum file size of generated images. |
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* No image with a size less then this amount (in KB), will be generated. |
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* |
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* @var integer |
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*/ |
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protected $minSize; |
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/** |
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* Enabled cache will stop generated images from being overwritten. |
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* |
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* @var bool |
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*/ |
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private $enableCache; |
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/** |
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* A percentage (between 0 and 1) to decrease image sizes with. |
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* |
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* @var float |
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*/ |
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protected $stepModifier; |
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/** |
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* The Intervention image engine. |
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* |
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* @var ImageManager |
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*/ |
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protected $engine; |
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/** |
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* @var Filesystem |
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*/ |
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protected $fs; |
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/** |
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* ResponsiveFactory constructor. |
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* |
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* @param ResponsiveFactoryConfigurator $configurator |
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*/ |
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public function __construct(ResponsiveFactoryConfigurator $configurator) { |
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$configurator->configure($this); |
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$this->sourcePath = rtrim($this->sourcePath, '/'); |
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$this->publicPath = rtrim($this->publicPath, '/'); |
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$this->engine = new ImageManager([ |
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'driver' => $this->driver, |
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]); |
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$this->fs = new Filesystem(); |
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if (!$this->fs->exists($this->publicPath)) { |
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$this->fs->mkdir($this->publicPath); |
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} |
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} |
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/** |
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* @param string $src |
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* |
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* @return ResponsiveImage |
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* @throws FileNotFoundException |
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*/ |
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public function create($src) { |
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$image = new ResponsiveImage($src); |
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$src = $image->src(); |
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$sourceImage = $this->getImageFile($this->sourcePath, $src); |
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if (!$sourceImage) { |
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throw new FileNotFoundException("{$this->sourcePath}{$src}"); |
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} |
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$publicImagePath = "{$this->publicPath}/{$src}"; |
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if (!$this->enableCache || !$this->fs->exists($publicImagePath)) { |
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if ($this->fs->exists($publicImagePath)) { |
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$this->fs->remove($publicImagePath); |
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} |
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$this->fs->dumpFile($publicImagePath, $sourceImage->getContents()); |
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} |
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$extension = $sourceImage->getExtension(); |
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$name = str_replace(".{$extension}", '', $sourceImage->getFilename()); |
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$urlParts = explode('/', $src); |
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array_pop($urlParts); |
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$urlPath = implode('/', $urlParts); |
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$imageObject = $this->engine->make($sourceImage->getPathname()); |
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$width = $imageObject->getWidth(); |
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$height = $imageObject->getHeight(); |
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$image->addSource($src, $width); |
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$stepWidth = (int) ($width * $this->stepModifier); |
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$stepHeight = (int) ($height * $this->stepModifier); |
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$width -= $stepWidth; |
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$height -= $stepHeight; |
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while ($width >= $this->minSize) { |
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$scaledName = "{$name}-{$width}.{$extension}"; |
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$scaledSrc = "{$urlPath}/{$scaledName}"; |
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$image->addSource($scaledSrc, $width); |
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$publicScaledPath = "{$this->publicPath}/{$urlPath}/{$scaledName}"; |
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if (!$this->enableCache || !$this->fs->exists($publicScaledPath)) { |
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$this->fs->dumpFile( |
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$publicScaledPath, |
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$imageObject->resize($width, $height)->encode($extension) |
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); |
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} |
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$width -= $stepWidth; |
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$height -= $stepHeight; |
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} |
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return $image; |
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} |
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/** |
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* @param $directory |
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* @param string $path |
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* |
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* @return SplFileInfo |
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*/ |
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private function getImageFile($directory, $path) { |
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$iterator = Finder::create()->files()->in($directory)->path(ltrim($path, '/'))->getIterator(); |
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$iterator->rewind(); |
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return $iterator->current(); |
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} |
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/** |
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* @param string $driver |
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* |
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* @return ResponsiveFactory |
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*/ |
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public function setDriver($driver) { |
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$this->driver = $driver; |
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return $this; |
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} |
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/** |
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* @param string $publicPath |
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* |
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* @return ResponsiveFactory |
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*/ |
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public function setPublicPath($publicPath) { |
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$this->publicPath = $publicPath; |
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return $this; |
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} |
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/** |
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* @param boolean $enableCache |
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* |
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* @return ResponsiveFactory |
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*/ |
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public function setEnableCache($enableCache) { |
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$this->enableCache = $enableCache; |
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return $this; |
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} |
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/** |
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* @param int $minSize |
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* |
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* @return ResponsiveFactory |
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*/ |
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public function setMinSize($minSize) { |
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$this->minSize = $minSize; |
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return $this; |
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} |
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/** |
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* @param float $stepModifier |
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* |
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* @return ResponsiveFactory |
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*/ |
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public function setStepModifier($stepModifier) { |
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$this->stepModifier = $stepModifier; |
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return $this; |
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} |
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/** |
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* @param string $sourcePath |
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* |
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* @return ResponsiveFactory |
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*/ |
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public function setSourcePath($sourcePath) { |
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$this->sourcePath = $sourcePath; |
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return $this; |
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} |
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} |
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brendt /
responsive-images
