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wp-content/plugins/wp-smushit/core/class-animated-status-controller.php

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+<?php
+
+namespace Smush\Core;
+
+use Smush\Core\Media\Media_Item_Cache;
+use Smush\Core\Stats\Global_Stats;
+
+/**
+ * The method {@see Media_Item::is_animated} is intentionally naive because we don't want to check file contents on the fly.
+ * This controller is responsible for the expensive file content check at the right times.
+ */
+class Animated_Status_Controller extends Controller {
+	private $media_item_cache;
+	/**
+	 * @var \WDEV_Logger|null
+	 */
+	private $logger;
+	/**
+	 * @var Global_Stats
+	 */
+	private $global_stats;
+
+	public function __construct() {
+		$this->media_item_cache = Media_Item_Cache::get_instance();
+		$this->global_stats     = Global_Stats::get();
+		$this->logger           = Helper::logger();
+
+		$this->register_filter( 'wp_smush_scan_library_slice_handle_attachment', array(
+			$this,
+			'maybe_update_animated_status_during_scan',
+		), 10, 2 );
+		$this->register_action( 'wp_smush_after_attachment_upload', array(
+			$this,
+			'maybe_update_animated_status_on_upload',
+		) );
+		$this->register_action( 'wp_smush_before_smush_file', array(
+			$this,
+			'maybe_update_animated_status_before_optimization',
+		) );
+	}
+
+	public function maybe_update_animated_status_during_scan( $slice_data, $attachment_id ) {
+		$this->maybe_update_animated_status( $attachment_id );
+
+		return $slice_data;
+	}
+
+	public function maybe_update_animated_status_on_upload( $attachment_id ) {
+		$this->maybe_update_animated_status( $attachment_id );
+	}
+
+	/**
+	 * TODO: add test
+	 *
+	 * @param $attachment_id
+	 *
+	 * @return void
+	 */
+	public function maybe_update_animated_status_before_optimization( $attachment_id ) {
+		$this->maybe_update_animated_status( $attachment_id );
+	}
+
+	private function maybe_update_animated_status( $attachment_id ) {
+		$media_item = $this->media_item_cache->get( $attachment_id );
+		if ( ! $media_item->is_valid() ) {
+			$this->logger->error( 'Tried to check animated value but encountered an problem with the media item' );
+
+			return;
+		}
+
+		if ( apply_filters( 'wp_smush_skip_image_animation_check', false, $attachment_id ) ) {
+			// The image is explicitly excluded from the animation check
+			return;
+		}
+
+		if ( $media_item->animated_meta_exists() ) {
+			// We already marked this item, no need to check again.
+			return;
+		}
+
+		if ( ! $media_item->has_animated_mime_type() ) {
+			// The media item is not even a GIF so no need to check.
+			return;
+		}
+
+		$file_path   = $media_item->get_full_or_scaled_size()->get_file_path();
+		$is_animated = Helper::check_animated_file_contents( $file_path );
+
+		$this->logger->log( 'Setting animated meta value' );
+		$set_animated = $media_item->set_animated( $is_animated );
+		if ( $set_animated ) {
+			$media_item->save();
+		}
+
+		if ( $is_animated ) {
+			do_action( 'wp_smush_attachment_animated_status_changed', $attachment_id );
+		}
+	}
+}