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<?php |
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namespace Imagify\Job; |
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|
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use Imagify\Optimization\Process\ProcessInterface; |
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use Imagify\Traits\InstanceGetterTrait; |
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use WP_Error; |
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|
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/** |
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* Job class for media optimization. |
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* |
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* @since 1.9 |
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*/ |
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class MediaOptimization extends \Imagify_Abstract_Background_Process { |
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use InstanceGetterTrait; |
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|
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/** |
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* Background process: the action to perform. |
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* |
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* @var string |
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* @since 1.9 |
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*/ |
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protected $action = 'optimize_media'; |
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|
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/** |
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* The optimization process instance. |
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* |
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* @var ProcessInterface |
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* @since 1.9 |
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*/ |
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protected $optimization_process; |
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|
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/** |
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* Handle job logic. |
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* |
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* @since 1.9 |
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* |
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* @param array $item { |
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* The data to use for this job. |
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* |
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* @type string $task The task to perform. Optional: set it only if you know what you’re doing. |
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* @type int $id The media ID. |
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* @type array $sizes An array of media sizes (strings). Use "full" for the size of the main file. |
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* @type array $sizes_done Used internally to store the media sizes that have been processed. |
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* @type int $optimization_level The optimization level. Null for the level set in the settings. |
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* @type string $process_class The name of the process class. The class must implement ProcessInterface. |
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* @type array $data { |
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* Can be used to pass any data. Keep it short, don’t forget it will be stored in the database. |
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* It should contain the following though: |
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* |
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* @type string $hook_suffix Suffix used to trigger hooks before and after optimization. Should be always provided. |
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* @type bool $delete_backup True to delete the backup file after the optimization process. This is used when a temporary backup of the original file has been created, but backup option is disabled. Default is false. |
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* } |
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* } |
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* @return array|bool The modified item to put back in the queue. False to remove the item from the queue. |
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*/ |
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protected function task( $item ) { |
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$item = $this->validate_item( $item ); |
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|
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if ( ! $item ) { |
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// Not valid. |
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return false; |
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} |
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|
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// Launch the task. |
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$method = 'task_' . $item['task']; |
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$item = $this->$method( $item ); |
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|
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if ( $item['task'] ) { |
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// Next task. |
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return $item; |
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} |
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|
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// End of the queue. |
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$this->optimization_process->unlock(); |
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return false; |
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} |
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|
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/** |
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* Trigger hooks before the optimization job. |
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* |
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* @since 1.9 |
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* |
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* @param array $item See $this->task(). |
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* @return array The item. |
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*/ |
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private function task_before( $item ) { |
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if ( ! empty( $item['error'] ) && is_wp_error( $item['error'] ) ) { |
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$wp_error = $item['error']; |
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} else { |
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$wp_error = new WP_Error(); |
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} |
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|
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/** |
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* Fires before optimizing a media. |
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* Any number of files can be optimized, not necessarily all of the media files. |
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* If you want to return a WP_Error, use the existing $wp_error object. |
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* |
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* @since 1.9 |
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* |
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* @param array|WP_Error $data New data to pass along the item. A WP_Error object to stop the process. |
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* @param WP_Error $wp_error Add errors to this object and return it to stop the process. |
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* @param ProcessInterface $process The optimization process. |
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* @param array $item The item being processed. See $this->task(). |
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*/ |
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$data = apply_filters( 'imagify_before_optimize', [], $wp_error, $this->optimization_process, $item ); |
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|
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if ( is_wp_error( $data ) ) { |
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$wp_error = $data; |
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} elseif ( $data && is_array( $data ) ) { |
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$item['data'] = array_merge( $data, $item['data'] ); |
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} |
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|
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if ( $wp_error->get_error_codes() ) { |
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// Don't optimize if there is an error. |
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$item['task'] = 'after'; |
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$item['error'] = $wp_error; |
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return $item; |
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} |
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|
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if ( empty( $item['data']['hook_suffix'] ) ) { |
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// Next task. |
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$item['task'] = 'optimize'; |
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return $item; |
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} |
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|
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$hook_suffix = $item['data']['hook_suffix']; |
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|
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/** |
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* Fires before optimizing a media. |
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* Any number of files can be optimized, not necessarily all of the media files. |
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* If you want to return a WP_Error, use the existing $wp_error object. |
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* |
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* @since 1.9 |
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* |
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* @param array|WP_Error $data New data to pass along the item. A WP_Error object to stop the process. |
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* @param WP_Error $wp_error Add errors to this object and return it to stop the process. |
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* @param ProcessInterface $process The optimization process. |
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* @param array $item The item being processed. See $this->task(). |
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*/ |
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$data = apply_filters( "imagify_before_{$hook_suffix}", [], $wp_error, $this->optimization_process, $item ); |
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|
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if ( is_wp_error( $data ) ) { |
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$wp_error = $data; |
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} elseif ( $data && is_array( $data ) ) { |
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$item['data'] = array_merge( $data, $item['data'] ); |
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} |
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|
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if ( $wp_error->get_error_codes() ) { |
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// Don't optimize if there is an error. |
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$item['task'] = 'after'; |
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$item['error'] = $wp_error; |
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return $item; |
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} |
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|
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// Next task. |
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$item['task'] = 'optimize'; |
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|
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return $item; |
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} |
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|
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/** |
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* Start the optimization job. |
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* |
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* @since 1.9 |
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* |
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* @param array $item See $this->task(). |
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* @return array The item. |
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*/ |
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private function task_optimize( $item ) { |
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// Determine which size we're going to optimize. The 'full' size must be optimized before any other. |
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if ( in_array( 'full', $item['sizes'], true ) ) { |
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$current_size = 'full'; |
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$item['sizes'] = array_diff( $item['sizes'], [ 'full' ] ); |
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} else { |
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$current_size = array_shift( $item['sizes'] ); |
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} |
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|
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$item['sizes_done'][] = $current_size; |
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|
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// Optimize the file. |
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$data = $this->optimization_process->optimize_size( $current_size, $item['optimization_level'] ); |
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|
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if ( 'full' === $current_size ) { |
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if ( is_wp_error( $data ) ) { |
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// Don't go further if there is an error. |
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$item['sizes'] = []; |
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$item['error'] = $data; |
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|
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} elseif ( 'already_optimized' === $data['status'] ) { |
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// Status is "already_optimized", try to create next-gen versions only. |
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$item['sizes'] = array_filter( $item['sizes'], [ $this->optimization_process, 'is_size_next_gen' ] ); |
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|
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} elseif ( 'success' !== $data['status'] ) { |
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// Don't go further if the full size has not the "success" status. |
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$item['sizes'] = []; |
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} |
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} |
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|
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if ( ! $item['sizes'] ) { |
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// No more files to optimize. |
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$item['task'] = 'after'; |
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} |
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|
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// Optimize the next file or go to the next task. |
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return $item; |
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} |
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|
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/** |
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* Trigger hooks after the optimization job. |
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* |
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* @since 1.9 |
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* |
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* @param array $item See $this->task(). |
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* @return array The item. |
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*/ |
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private function task_after( $item ) { |
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if ( ! empty( $item['data']['delete_backup'] ) ) { |
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$this->optimization_process->delete_backup(); |
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} |
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|
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/** |
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* Fires after optimizing a media. |
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* Any number of files can be optimized, not necessarily all of the media files. |
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* |
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* @since 1.9 |
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* |
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* @param ProcessInterface $process The optimization process. |
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* @param array $item The item being processed. See $this->task(). |
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*/ |
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do_action( 'imagify_after_optimize', $this->optimization_process, $item ); |
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|
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if ( empty( $item['data']['hook_suffix'] ) ) { |
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$item['task'] = false; |
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return $item; |
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} |
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|
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$hook_suffix = $item['data']['hook_suffix']; |
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|
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/** |
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* Fires after optimizing a media. |
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* Any number of files can be optimized, not necessarily all of the media files. |
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* |
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* @since 1.9 |
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* |
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* @param ProcessInterface $process The optimization process. |
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* @param array $item The item being processed. See $this->task(). |
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*/ |
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do_action( "imagify_after_{$hook_suffix}", $this->optimization_process, $item ); |
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|
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$item['task'] = false; |
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return $item; |
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} |
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|
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/** |
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* Validate an item. |
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* On success, the property $this->optimization_process is set. |
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* |
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* @since 1.9 |
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* |
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* @param array $item See $this->task(). |
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* @return array|bool The item. False if invalid. |
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*/ |
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protected function validate_item( $item ) { |
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$this->optimization_process = null; |
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|
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$default = [ |
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'task' => '', |
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'id' => 0, |
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'sizes' => [], |
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'sizes_done' => [], |
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'optimization_level' => null, |
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'process_class' => '', |
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'data' => [], |
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]; |
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|
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$item = imagify_merge_intersect( $item, $default ); |
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|
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// Validate some types first. |
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if ( ! is_array( $item['sizes'] ) ) { |
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return false; |
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} |
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|
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if ( isset( $item['error'] ) && ! is_wp_error( $item['error'] ) ) { |
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unset( $item['error'] ); |
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} |
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|
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if ( isset( $item['data']['hook_suffix'] ) && ! is_string( $item['data']['hook_suffix'] ) ) { |
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unset( $item['data']['hook_suffix'] ); |
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} |
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|
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$item['id'] = (int) $item['id']; |
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$item['optimization_level'] = $this->sanitize_optimization_level( $item['optimization_level'] ); |
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|
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if ( ! $item['id'] || ! $item['process_class'] ) { |
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return false; |
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} |
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|
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// Process. |
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$item['process_class'] = '\\' . ltrim( $item['process_class'], '\\' ); |
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|
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if ( ! class_exists( $item['process_class'] ) ) { |
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return false; |
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} |
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|
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$process = $this->get_process( $item ); |
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|
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if ( ! $process ) { |
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return false; |
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} |
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|
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$this->optimization_process = $process; |
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|
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// Validate the current task. |
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if ( empty( $item['task'] ) ) { |
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$item['task'] = 'before'; |
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} |
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|
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if ( ! $item['task'] || ! method_exists( $this, 'task_' . $item['task'] ) ) { |
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return false; |
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} |
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|
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if ( ! $item['sizes'] && 'after' !== $item['task'] ) { |
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// Allow to have no sizes, but only after the optimize task is complete. |
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return false; |
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} |
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|
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if ( ! isset( $item['sizes_done'] ) || ! is_array( $item['sizes_done'] ) ) { |
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$item['sizes_done'] = []; |
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} |
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|
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return $item; |
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} |
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|
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/** |
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* Get the process instance. |
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* |
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* @since 1.9 |
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* |
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* @param array $item See $this->task(). |
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* @return ProcessInterface|bool The instance object on success. False on failure. |
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*/ |
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protected function get_process( $item ) { |
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$process_class = $item['process_class']; |
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$process = new $process_class( $item['id'] ); |
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|
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if ( ! $process instanceof ProcessInterface || ! $process->is_valid() ) { |
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return false; |
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} |
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|
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return $process; |
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} |
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|
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/** |
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* Sanitize and validate an optimization level. |
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* If not provided (false, null), fallback to the level set in the plugin's settings. |
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* |
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* @since 1.9 |
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* |
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* @param mixed $optimization_level The optimization level. |
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* @return int |
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*/ |
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protected function sanitize_optimization_level( $optimization_level ) { |
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if ( ! is_numeric( $optimization_level ) ) { |
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if ( get_imagify_option( 'lossless' ) ) { |
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return 0; |
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} |
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|
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return get_imagify_option( 'optimization_level' ); |
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} |
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|
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return \Imagify_Options::get_instance()->sanitize_and_validate( 'optimization_level', $optimization_level ); |
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} |
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} |
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|
