74 lines
1.6 KiB
PHP
74 lines
1.6 KiB
PHP
<?php
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namespace Kirby\Plugins\ImageKit\Optimizer;
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use F;
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/**
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* Lossless optimization of GIF files by using `gifsicle`.
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* Supports animated GIFs.
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*
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* See: https://www.lcdf.org/gifsicle/
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*/
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class Gifsicle extends Base {
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public static $selector = ['image/gif'];
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public $priority = [false, 50];
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protected $targetFile;
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protected $tempFile;
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public static function defaults() {
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return [
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'imagekit.gifsicle.bin' => null,
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'imagekit.gifsicle.level' => 3,
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'imagekit.gifsicle.colors' => false,
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'imagekit.gifsicle.flags' => '',
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];
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}
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public static function available() {
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return !empty(static::$kirby->option('imagekit.gifsicle.bin'));
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}
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public function post() {
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$tmpFile = $this->getTemporaryFilename();
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$command = [];
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$command[] = static::$kirby->option('imagekit.gifsicle.bin');
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if($this->thumb->options['interlace']) {
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$command[] = '--interlace';
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}
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// Set colors
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$colors = $this->option('imagekit.gifsicle.colors');
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if($colors !== false) {
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$command[] = "--colors $colors";
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}
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// Set optimization level.
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$command[] = '--optimize=' . $this->option('imagekit.gifsicle.level');
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$flags = $this->option('imagekit.gifsicle.flags');
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if(!empty($flags)) {
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// Add exra flags, if defined by user.
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$command[] = $flags;
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}
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// Set output file
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$command[] = '--output "' . $tmpFile . '"';
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// Set input file
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$command[] = '"' . $this->thumb->destination->root . '"';
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exec(implode(' ', $command));
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$this->keepSmallestFile($this->thumb->destination->root, $tmpFile);
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}
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}
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