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<?php
namespace YOOtheme\Widgetkit\Image;
use YOOtheme\Framework\Application;
use YOOtheme\Framework\ApplicationAware;
class ImageProvider extends ApplicationAware
{
/**
* Constructor.
*
* @param Application $app
*/
public function __construct(Application $app)
{
$this->app = $app;
}
/**
* @param string $file
* @return Image|false
*/
public function create($file)
{
$base = $this['request']->getBasePath();
if (preg_match('/^https?:/i', $file)) {
$file = str_replace($this['request']->getBaseUrl(), $base, $file);
}
if (!$this->isAbsolutePath($file)) {
$file = "{$base}/{$file}";
}
if (!preg_match('/\.(gif|png|jpe?g)$/i', $file) || !file_exists($file) || ($base && !strpos($file, $base) === 0)) {
return false;
}
return new Image($this->app, $file);
}
/**
* Get image thumbnail url.
*
* @param string $file
* @param string $width
* @param string $height
* @return string
*/
public function thumbnailUrl($file, $width, $height) {
if ($image = $this->create($file)) {
$image->setOptions(array('w' => $width, 'h' => $height));
return $image->cache();
}
return $file;
}
/**
* Returns true if the file is an existing absolute path.
*
* @param string $file
* @return boolean
*/
protected static function isAbsolutePath($file)
{
return $file[0] == '/' || $file[0] == '\\' || (strlen($file) > 3 && ctype_alpha($file[0]) && $file[1] == ':' && ($file[2] == '\\' || $file[2] == '/')) || null !== parse_url($file, PHP_URL_SCHEME);
}
}