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wp/wp-content/plugins/imagify/inc/3rd-party/nextgen-gallery/classes/DynamicThumbnails.php

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+<?php
+namespace Imagify\ThirdParty\NGG;
+
+defined( 'ABSPATH' ) || die( 'Cheatin’ uh?' );
+
+/**
+ * Class that handles the optimization of thumbnails dynamically generated.
+ *
+ * @since  1.9
+ * @author Grégory Viguier
+ */
+class DynamicThumbnails {
+	use \Imagify\Traits\InstanceGetterTrait;
+
+	/**
+	 * The queue containing the sizes, grouped by image ID.
+	 *
+	 * @var    array
+	 * @since  1.9
+	 * @access protected
+	 * @author Grégory Viguier
+	 */
+	protected static $sizes = [];
+
+	/**
+	 * A list of NGG image objects, grouped by image ID.
+	 *
+	 * @var    array
+	 * @since  1.9
+	 * @access protected
+	 * @author Grégory Viguier
+	 */
+	protected static $images = [];
+
+	/**
+	 * Add a dynamically generated thumbnail to the background process queue.
+	 *
+	 * @since  1.9
+	 * @access public
+	 * @author Grégory Viguier
+	 *
+	 * @param object $image A NGG image object.
+	 * @param string $size  The thumbnail size name.
+	 */
+	public function push_to_queue( $image, $size ) {
+		static $done = false;
+
+		if ( empty( $image->pid ) ) {
+			// WUT?
+			return;
+		}
+
+		if ( empty( static::$sizes[ $image->pid ] ) ) {
+			static::$sizes[ $image->pid ] = [];
+		}
+
+		static::$sizes[ $image->pid ][] = $size;
+
+		if ( empty( static::$images[ $image->pid ] ) ) {
+			static::$images[ $image->pid ] = $image;
+		}
+
+		if ( $done ) {
+			return;
+		}
+
+		$done = true;
+
+		add_action( 'shutdown', [ $this, 'optimize' ], 555 ); // Must come before 666 (see Imagify_Abstract_Background_Process->init()).
+	}
+
+	/**
+	 * Launch the optimizations.
+	 *
+	 * @since  1.9
+	 * @access public
+	 * @author Grégory Viguier
+	 */
+	public function optimize() {
+		if ( empty( static::$sizes ) ) {
+			// ¯\(°_o)/¯
+			return;
+		}
+
+		foreach ( static::$sizes as $image_id => $sizes ) {
+			if ( empty( static::$images[ $image_id ] ) ) {
+				// ¯\(°_o)/¯
+				continue;
+			}
+
+			$sizes = array_filter( $sizes );
+
+			if ( empty( $sizes ) ) {
+				continue;
+			}
+
+			$process = imagify_get_optimization_process( static::$images[ $image_id ], 'ngg' );
+
+			if ( ! $process->is_valid() || ! $process->get_media()->is_supported() ) {
+				continue;
+			}
+
+			$data = $process->get_data();
+
+			if ( ! $data->is_optimized() ) {
+				// The main image is not optimized.
+				continue;
+			}
+
+			$sizes = array_unique( $sizes );
+
+			foreach ( $sizes as $i => $size ) {
+				$size_status = $data->get_size_data( $size, 'success' );
+
+				if ( $size_status ) {
+					// This thumbnail has already been processed.
+					unset( $sizes[ $i ] );
+				}
+			}
+
+			if ( empty( $sizes ) ) {
+				continue;
+			}
+
+			$optimization_level = $process->get_data()->get_optimization_level();
+			$args               = [
+				'hook_suffix' => 'optimize_generated_image',
+			];
+
+			$process->optimize_sizes( $sizes, $optimization_level, $args );
+		}
+	}
+}