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<?php |
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namespace Distilleries\Contentful\Helpers; |
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class Image |
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{ |
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/** |
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* Return image URL to serve based on given parameters. |
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* |
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* @param string $url |
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* @param integer $width |
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* @param integer $height |
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* @param string $format |
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* @param integer $quality |
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* @param boolean|null $useProgressive |
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* @param string $fit |
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* @return string |
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*/ |
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public static function url( |
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string $url, |
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int $width = 0, |
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int $height = 0, |
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$format = '', |
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int $quality = 0, |
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?bool $useProgressive = null, |
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$fit = '' |
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): string { |
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if (empty($url)) { |
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return ''; |
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} |
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$imageUrl = ''; |
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$format = static::detectFormat($format); |
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collect([ |
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'w' => $width, |
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'h' => $height, |
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'q' => !empty($quality) ? $quality : config('contentful.image.default_quality'), |
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'fm' => config('contentful.image.use_webp') ? $format : null, |
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'fl' => static::detectProgressive($format, $useProgressive) ? 'progressive' : null, |
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'fit' => static::detectFit($fit), |
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])->filter(function ($value) { |
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return !empty($value); |
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})->each(function ($value, $key) use (& $imageUrl) { |
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$imageUrl .= $key . '=' . $value . '&'; |
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}); |
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return static::replaceHosts($url, $imageUrl); |
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} |
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/** |
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* @param null|string $url |
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* @param string $imageUrl |
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* @return string |
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*/ |
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protected static function replaceHosts(?string $url, string $imageUrl): string |
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{ |
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if (str_contains($url, '?')) { |
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$url = explode('?', $url); |
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$url = $url[0]; |
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} |
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$searchHosts = config('contentful.image.search_hosts'); |
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$replaceHost = config('contentful.image.replace_host'); |
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if (!empty($searchHosts) && !empty($replaceHost)) { |
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$url = str_replace(explode(',', $searchHosts), $replaceHost, $url); |
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} |
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return !empty($url) ? $url . '?' . trim($imageUrl, '&') : ''; |
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} |
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/** |
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* Auto-detect image format to serve (based on browser capability). |
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* |
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* @param string $format |
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* @return string|null |
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*/ |
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protected static function detectFormat(string $format = ''): ?string |
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{ |
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/** @var \Jenssegers\Agent\Agent $agent */ |
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$agent = app('agent'); |
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if (empty($format)) { |
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$browser = mb_strtolower($agent->browser()); |
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if (($browser === 'chrome') && !$agent->isMobile()) { |
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$format = config('contentful.image.use_webp') ? 'webp' : null; |
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} |
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} |
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return $format; |
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} |
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/** |
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* @param null|string $fit |
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* @return null|string |
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*/ |
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protected static function detectFit(?string $fit = null): ?string |
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{ |
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if (empty($fit)) { |
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$fit = 'fill'; |
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} else { |
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$fit = ($fit !== 'default') ? $fit : null; |
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} |
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return $fit; |
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} |
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/** |
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* @param null|string $format |
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* @param bool|null $useProgressive |
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* @return bool |
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*/ |
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protected static function detectProgressive(?string $format = '', ?bool $useProgressive = null): bool |
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{ |
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if ($format === 'webp') { |
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$useProgressive = false; |
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} |
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if ($useProgressive === null) { |
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$useProgressive = !empty(config('contentful.image.use_progressive')); |
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} |
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return $useProgressive; |
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} |
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} |
Distilleries /
Laravel-Contentful-Utilities
