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<?php
/**
* @package WP Smush
* @subpackage NextGen Gallery
* @version 1.0
*
* @author Umesh Kumar <umesh@incsub.com>
*
* @copyright (c) 2016, Incsub (http://incsub.com)
*/
if ( ! class_exists( 'WpSmushNextGen' ) ) {
class WpSmushNextGen {
/**
* @var array Contains the total Stats, for displaying it on bulk page
*/
var $stats = array(
'savings_bytes' => 0,
'size_before' => 0,
'size_after' => 0,
'savings_percent' => 0
);
var $is_nextgen_active = false;
function __construct() {
$this->init();
}
function init() {
global $WpSmush, $wpsmush_settings;
//Filters the setting variable to add S3 setting title and description
add_filter( 'wp_smush_settings', array( $this, 'register' ), 5 );
//Filters the setting variable to add S3 setting in premium features
add_filter( 'wp_smush_pro_settings', array( $this, 'add_setting' ), 5 );
//Check if integration is Enabled or not
if ( ! empty( $wpsmush_settings->settings ) ) {
$opt_nextgen_val = $wpsmush_settings->settings['nextgen'];
} else {
//Smush NextGen key
$opt_nextgen = WP_SMUSH_PREFIX . 'nextgen';
$opt_nextgen_val = $wpsmush_settings->get_setting( $opt_nextgen, false );
}
//return if not a pro user, or nextgen integration is not enabled
if( !$WpSmush->validate_install() || !$opt_nextgen_val ) {
return;
}
//Auto Smush image, if enabled, runs after Nextgen is finished uploading the image
//Allows to override whether to auto smush nextgen image or not
if ( $auto_smush = apply_filters( 'smush_nextgen_auto', $WpSmush->is_auto_smush_enabled() ) ) {
add_action( 'ngg_added_new_image', array( &$this, 'auto_smush' ) );
}
//Single Smush/Manual Smush: Handles the Single/Manual smush request for Nextgen Gallery
add_action( 'wp_ajax_smush_manual_nextgen', array( $this, 'manual_nextgen' ) );
//Restore Image: Handles the single/Manual restore image request for NextGen Gallery
add_action( 'wp_ajax_smush_restore_nextgen_image', array( $this, 'restore_image' ) );
//Resmush Image: Handles the single/Manual resmush image request for NextGen Gallery
add_action( 'wp_ajax_smush_resmush_nextgen_image', array( $this, 'resmush_image' ) );
}
/**
* Filters the setting variable to add S3 setting title and description
*
* @param $settings
*
* @return mixed
*/
function register( $settings ) {
$settings['nextgen'] = array(
'label' => esc_html__( 'Enable NextGen Gallery integration', 'wp-smushit' ),
'short_label' => esc_html__( 'NextGen Gallery', 'wp-smushit' ),
'desc' => esc_html__( 'Allow smushing images directly through NextGen Gallery settings.', 'wp-smushit' )
);
return $settings;
}
/**
* Append S3 in pro feature list
*
* @param $pro_settings
*
* @return array
*/
function add_setting( $pro_settings ) {
if ( ! isset( $pro_settings['nextgen'] ) ) {
$pro_settings[] = 'nextgen';
}
return $pro_settings;
}
/**
* Queries Nextgen table for a list of image ids
* @return mixed Array of ids
*/
function get_nextgen_attachments() {
global $wpdb;
//Query images from the nextgen table
$images = $wpdb->get_col( "SELECT pid FROM $wpdb->nggpictures ORDER BY pid ASC" );
//Return empty array, if there was error querying the images
if ( empty( $images ) || is_wp_error( $images ) ) {
$images = array();
}
return $images;
}
/**
* Get the NextGen Image object from attachment id
*
* @param $pid
*
* @return mixed
*/
function get_nextgen_image_from_id( $pid ) {
// Registry Object for NextGen Gallery
$registry = C_Component_Registry::get_instance();
//Gallery Storage Object
$storage = $registry->get_utility( 'I_Gallery_Storage' );
$image = $storage->object->_image_mapper->find( $pid );
return $image;
}
/**
* Get the NextGen attachment id from image object
*
* @param $image
*
* @return mixed
*/
function get_nextgen_id_from_image( $image ) {
// Registry Object for NextGen Gallery
$registry = C_Component_Registry::get_instance();
//Gallery Storage Object
$storage = $registry->get_utility( 'I_Gallery_Storage' );
$pid = $storage->object->_get_image_id( $image );
return $pid;
}
/**
* Get image mime type
*
* @param $file_path
*
* @return bool|string
*/
function get_file_type( $file_path ) {
if ( empty( $file_path ) || ! file_exists( $file_path ) ) {
return false;
}
if ( function_exists( 'exif_imagetype' ) ) {
$image_type = exif_imagetype( $file_path );
if ( ! empty( $image_type ) ) {
$image_mime = image_type_to_mime_type( $image_type );
}
} else {
$image_details = getimagesize( $file_path );
$image_mime = ! empty( $image_details ) && is_array( $image_details ) ? $image_details['mime'] : '';
}
return $image_mime;
}
/**
* Read the image paths from an attachment's meta data and process each image
* with wp_smushit().
*
* @param $meta
* @param null $ID
*
* @return mixed
*/
function resize_from_meta_data( $image ) {
global $WpSmush;
$errors = new WP_Error();
$stats = array(
"stats" => array_merge( $WpSmush->_get_size_signature(), array(
'api_version' => - 1,
'lossy' => - 1
)
),
'sizes' => array()
);
$size_before = $size_after = $compression = $total_time = $bytes_saved = 0;
// Registry Object for NextGen Gallery
$registry = C_Component_Registry::get_instance();
//Storage Object for NextGen Gallery
$storage = $registry->get_utility( 'I_Gallery_Storage' );
//File path and URL for original image
// get an array of sizes available for the $image
$sizes = $storage->get_image_sizes();
// If images has other registered size, smush them first
if ( ! empty( $sizes ) ) {
if ( class_exists( 'finfo' ) ) {
$finfo = new finfo( FILEINFO_MIME_TYPE );
} else {
$finfo = false;
}
foreach ( $sizes as $size ) {
//Skip Full size, if smush original is not checked
if ( 'full' == $size && ! $WpSmush->smush_original ) {
continue;
}
//Check if registered size is supposed to be converted or not
global $wpsmushit_admin;
if ( 'full' != $size && $wpsmushit_admin->skip_image_size( $size ) ) {
return false;
}
// We take the original image. Get the absolute path using the storage object
$attachment_file_path_size = $storage->get_image_abspath( $image, $size );
if ( $finfo ) {
$ext = file_exists( $attachment_file_path_size ) ? $finfo->file( $attachment_file_path_size ) : '';
} elseif ( function_exists( 'mime_content_type' ) ) {
$ext = mime_content_type( $attachment_file_path_size );
} else {
$ext = false;
}
if ( $ext ) {
$valid_mime = array_search(
$ext,
array(
'jpg' => 'image/jpeg',
'png' => 'image/png',
'gif' => 'image/gif',
),
true
);
if ( false === $valid_mime ) {
continue;
}
}
/**
* Allows to skip a image from smushing
*
* @param bool , Smush image or not
* @$size string, Size of image being smushed
*/
$smush_image = apply_filters( 'wp_smush_nextgen_image', true, $size );
if ( ! $smush_image ) {
continue;
}
//Store details for each size key
$response = $WpSmush->do_smushit( $attachment_file_path_size, $image->pid, 'nextgen' );
if ( is_wp_error( $response ) ) {
return $response;
}
//If there are no stats
if ( empty( $response['data'] ) ) {
continue;
}
//If the image size grew after smushing, skip it
if ( $response['data']->after_size > $response['data']->before_size ) {
continue;
}
$stats['sizes'][ $size ] = (object) $WpSmush->_array_fill_placeholders( $WpSmush->_get_size_signature(), (array) $response['data'] );
if ( empty( $stats['stats']['api_version'] ) || $stats['stats']['api_version'] == - 1 ) {
$stats['stats']['api_version'] = $response['data']->api_version;
$stats['stats']['lossy'] = $response['data']->lossy;
$stats['stats']['keep_exif'] = ! empty( $response['data']->keep_exif ) ? $response['data']->keep_exif : 0;
}
}
}
$has_errors = (bool) count( $errors->get_error_messages() );
//Set smush status for all the images, store it in wp-smpro-smush-data
if ( ! $has_errors ) {
$existing_stats = ( ! empty( $image->meta_data ) && ! empty( $image->meta_data['wp_smush'] ) ) ? $image->meta_data['wp_smush'] : '';
if ( ! empty( $existing_stats ) ) {
//Update stats for each size
if ( ! empty( $existing_stats['sizes'] ) && ! empty( $stats['sizes'] ) ) {
foreach ( $existing_stats['sizes'] as $size_name => $size_stats ) {
//if stats for a particular size doesn't exists
if ( empty( $stats['sizes'] ) || empty( $stats['sizes'][ $size_name ] ) ) {
$stats = empty( $stats ) ? array() : $stats;
if ( empty( $stats['sizes'] ) ) {
$stats['sizes'] = array();
}
$stats['sizes'][ $size_name ] = $existing_stats['sizes'][ $size_name ];
} else {
$existing_stats_size = (object) $existing_stats['sizes'][ $size_name ];
//store the original image size
$stats['sizes'][ $size_name ]->size_before = ( ! empty( $existing_stats_size->size_before ) && $existing_stats_size->size_before > $stats['sizes'][ $size_name ]->size_before ) ? $existing_stats_size->size_before : $stats['sizes'][ $size_name ]->size_before;
//Update compression percent and bytes saved for each size
$stats['sizes'][ $size_name ]->bytes = $stats['sizes'][ $size_name ]->bytes + $existing_stats_size->bytes;
//Calculate percentage
$stats['sizes'][ $size_name ]->percent = $WpSmush->calculate_percentage( $stats['sizes'][ $size_name ], $existing_stats_size );
}
}
}
}
//Total Stats
$stats = $WpSmush->total_compression( $stats );
$stats['total_images'] = ! empty( $stats['sizes'] ) ? count( $stats['sizes'] ) : 0;
//If there was any compression and there was no error in smushing
if ( isset( $stats['stats']['bytes'] ) && $stats['stats']['bytes'] >= 0 && ! $has_errors ) {
/**
* Runs if the image smushing was successful
*
* @param int $ID Image Id
*
* @param array $stats Smush Stats for the image
*
*/
do_action( 'wp_smush_image_optimised_nextgen', $image->pid, $stats );
}
$image->meta_data['wp_smush'] = $stats;
nggdb::update_image_meta( $image->pid, $image->meta_data );
//Allows To get the stats for each image, after the image is smushed
do_action( 'wp_smush_nextgen_image_stats', $image->pid, $stats );
}
return $image->meta_data['wp_smush'];
}
/**
* Performs the actual smush process
*
* @usedby: `manual_nextgen`, `auto_smush`, `smush_bulk`
*
* @param string $pid NextGen Gallery Image id
* @param string $image Nextgen gallery image object
* @param bool $echo Whether to echo the stats or not, false for auto smush
* @param bool $is_bulk Whether it's called by bulk smush or not
*
* @return mixed Stats / Status / Error
*/
function smush_image( $pid = '', $image = '', $echo = true, $is_bulk = false ) {
global $wpsmushnextgenstats, $WpSmush;
$WpSmush->initialise();
//Get image, if we have image id
if ( ! empty( $pid ) ) {
$image = $this->get_nextgen_image_from_id( $pid );
} elseif ( ! empty( $image ) ) {
$pid = $this->get_nextgen_id_from_image( $image );
}
$metadata = ! empty( $image ) ? $image->meta_data : '';
if ( empty( $metadata ) ) {
wp_send_json_error( array( 'error_msg' => '<p class="wp-smush-error-message">' . esc_html__( "We couldn't find the metadata for the image, possibly the image has been deleted.", "wp-smushit" ) . '</p>' ) );
}
$registry = C_Component_Registry::get_instance();
$storage = $registry->get_utility( 'I_Gallery_Storage' );
//Perform Resizing
$metadata = $this->resize_image( $pid, $image, $metadata, $storage );
//Store Meta
$image->meta_data = $metadata;
nggdb::update_image_meta( $image->pid, $image->meta_data );
//smush the main image and its sizes
$smush = $this->resize_from_meta_data( $image, $registry, $storage );
if ( ! is_wp_error( $smush ) ) {
$status = $wpsmushnextgenstats->show_stats( $pid, $smush, false, true );
}
//If we are suppose to send the stats, not required for auto smush
if ( $echo ) {
/** Send stats **/
if ( is_wp_error( $smush ) ) {
/**
* @param WP_Error $smush
*/
wp_send_json_error( $smush->get_error_message() );
} else {
wp_send_json_success( $status );
}
} else {
if( ! $is_bulk ) {
if ( is_wp_error( $smush ) ) {
return $smush;
} else {
return $status;
}
}else{
return $smush;
}
}
}
/**
* Handles the smushing of each image and its registered sizes
* Calls the function to update the compression stats
*/
function manual_nextgen() {
$pid = ! empty( $_GET['attachment_id'] ) ? absint( (int) $_GET['attachment_id'] ) : '';
$nonce = ! empty( $_GET['_nonce'] ) ? $_GET['_nonce'] : '';
//Verify Nonce
if ( ! wp_verify_nonce( $nonce, 'wp_smush_nextgen' ) ) {
wp_send_json_error( array( 'error' => 'nonce_verification_failed' ) );
}
//Check for media upload permission
if ( ! current_user_can( 'upload_files' ) ) {
wp_die( __( "You don't have permission to work with uploaded files.", 'wp-smushit' ) );
}
if ( empty( $pid ) ) {
wp_die( __( 'No attachment ID was provided.', 'wp-smushit' ) );
}
$this->smush_image( $pid, '' );
}
/**
* Process auto smush request for nextgen gallery images
*
* @param $image
*/
function auto_smush( $image ) {
$this->smush_image( '', $image, false );
}
/**
* Checks for file backup, if available for any of the size,
* Function returns true
*
* @param $pid
* @param $attachment_data
*
* @return bool
*/
function show_restore_option( $pid, $attachment_data ) {
global $WpSmush;
// Registry Object for NextGen Gallery
$registry = C_Component_Registry::get_instance();
//Gallery Storage Object
$storage = $registry->get_utility( 'I_Gallery_Storage' );
$image = $storage->object->_image_mapper->find( $pid );
//Get image full path
$attachment_file_path = $storage->get_image_abspath( $image, 'full' );
//Get the backup path
$backup_path = $WpSmush->get_image_backup_path( $attachment_file_path );
//If one of the backup(Ours/NextGen) exists, show restore option
if ( file_exists( $backup_path ) || file_exists( $attachment_file_path . '_backup' ) ) {
return true;
}
//Get Sizes, and check for backup
if ( empty( $attachment_data['sizes'] ) ) {
return false;
}
foreach ( $attachment_data['sizes'] as $size => $size_data ) {
if ( 'full' == $size ) {
continue;
}
//Get file path
$attachment_size_file_path = $storage->get_image_abspath( $image, $size );
//Get the backup path
$backup_path = $WpSmush->get_image_backup_path( $attachment_size_file_path );
//If one of the backup(Ours/NextGen) exists, show restore option
if ( file_exists( $backup_path ) || file_exists( $attachment_size_file_path . '_backup' ) ) {
return true;
}
}
}
/**
* Handles the ajax request to restore a image from backup and return button HTML
*
* @uses WpSmushNextGenAdmin::wp_smush_column_options()
*/
function restore_image() {
global $WpSmush, $wpsmushnextgenadmin;
//Check Empty fields
if ( empty( $_POST['attachment_id'] ) || empty( $_POST['_nonce'] ) ) {
wp_send_json_error( array(
'error' => 'empty_fields',
'message' => esc_html__( "Error in processing restore action, Fields empty.", "wp-smushit" )
) );
}
//Check Nonce
if ( ! wp_verify_nonce( $_POST['_nonce'], "wp-smush-restore-" . $_POST['attachment_id'] ) ) {
wp_send_json_error( array(
'error' => 'empty_fields',
'message' => esc_html__( "Image not restored, Nonce verification failed.", "wp-smushit" )
) );
}
//Store the restore success/failure for all the sizes
$restored = array();
// Registry Object for NextGen Gallery
$registry = C_Component_Registry::get_instance();
//Gallery Storage Object
$storage = $registry->get_utility( 'I_Gallery_Storage' );
//Process Now
$image_id = absint( (int) $_POST['attachment_id'] );
//Get the absolute path for original image
$image = $this->get_nextgen_image_from_id( $image_id );
//Get image full path
$attachment_file_path = $storage->get_image_abspath( $image, 'full' );
//Get the backup path
$backup_path = $WpSmush->get_image_backup_path( $attachment_file_path );
//Restoring the full image
//If file exists, corresponding to our backup path
if ( file_exists( $backup_path ) ) {
//Restore
$restored[] = @copy( $backup_path, $attachment_file_path );
//Delete the backup
@unlink( $backup_path );
} elseif ( file_exists( $attachment_file_path . '_backup' ) ) {
//Restore from other backups
$restored[] = @copy( $attachment_file_path . '_backup', $attachment_file_path );
}
//Restoring the other sizes
$attachment_data = ! empty( $image->meta_data['wp_smush'] ) ? $image->meta_data['wp_smush'] : '';
if ( ! empty( $attachment_data['sizes'] ) ) {
foreach ( $attachment_data['sizes'] as $size => $size_data ) {
if ( 'full' == $size ) {
continue;
}
//Get file path
$attachment_size_file_path = $storage->get_image_abspath( $image, $size );
//Get the backup path
$backup_path = $WpSmush->get_image_backup_path( $attachment_size_file_path );
//If file exists, corresponding to our backup path
if ( file_exists( $backup_path ) ) {
//Restore
$restored[] = @copy( $backup_path, $attachment_size_file_path );
//Delete the backup
@unlink( $backup_path );
} elseif ( file_exists( $attachment_size_file_path . '_backup' ) ) {
//Restore from other backups
$restored[] = @copy( $attachment_size_file_path . '_backup', $attachment_size_file_path );
}
}
}
//If any of the image is restored, we count it as success
if ( in_array( true, $restored ) ) {
//Update the global Stats
$wpsmushnextgenadmin->update_nextgen_stats( $image_id );
//Remove the Meta, And send json success
$image->meta_data['wp_smush'] = '';
nggdb::update_image_meta( $image->pid, $image->meta_data );
//Get the Button html without wrapper
$button_html = $wpsmushnextgenadmin->wp_smush_column_options( '', $image_id, false );
wp_send_json_success( array( 'button' => $button_html ) );
}
wp_send_json_error( array( 'message' => '<div class="wp-smush-error">' . __( "Unable to restore image", "wp-smushit" ) . '</div>' ) );
}
/**
* Handles the Ajax request to resmush a image, if the full image wasn't smushed earlier
*/
function resmush_image() {
//Check Empty fields
if ( empty( $_POST['attachment_id'] ) || empty( $_POST['_nonce'] ) ) {
wp_send_json_error( array(
'error' => 'empty_fields',
'message' => '<div class="wp-smush-error">' . esc_html__( "We couldn't process the image, fields empty.", "wp-smushit" ) . '</div>'
) );
}
//Check Nonce
if ( ! wp_verify_nonce( $_POST['_nonce'], "wp-smush-resmush-" . $_POST['attachment_id'] ) ) {
wp_send_json_error( array(
'error' => 'empty_fields',
'message' => '<div class="wp-smush-error">' . esc_html__( "Image couldn't be smushed as the nonce verification failed, try reloading the page.", "wp-smushit" ) . '</div>'
) );
}
$image_id = intval( $_POST['attachment_id'] );
$smushed = $this->smush_image( $image_id, '', false );
//If any of the image is restored, we count it as success
if ( ! empty( $smushed ) && ! is_wp_error( $smushed ) ) {
//Send button content
wp_send_json_success( array( 'button' => $smushed['status'] . $smushed['stats'] ) );
} elseif ( is_wp_error( $smushed ) ) {
//Send Error Message
wp_send_json_error( array( 'message' => sprintf( '<div class="wp-smush-error">' . __( "Unable to smush image, %s", "wp-smushit" ) . '</div>', $smushed->get_error_message() ) ) );
}
}
/**
* Get file extension from file path
*
* @param string $file_path Absolute image path to get the mime for
*
* @return string Null/ Mime Type
*
*/
function get_file_ext( $file_path = '' ) {
if ( empty( $file_path ) ) {
return '';
}
if ( class_exists( 'finfo' ) ) {
$finfo = new finfo( FILEINFO_MIME_TYPE );
} else {
$finfo = false;
}
if ( $finfo ) {
$ext = file_exists( $file_path ) ? $finfo->file( $file_path ) : '';
} elseif ( function_exists( 'mime_content_type' ) ) {
$ext = mime_content_type( $file_path );
} else {
$ext = '';
}
return $ext;
}
/**
* Optionally resize a NextGen image
*
* @param $attachment_id Gallery Image id
* @param $image Image object for NextGen gallery
* @param $meta Image meta from nextgen gallery
* @param $storage Storage object for nextgen gallery
*
* @return mixed
*/
function resize_image( $attachment_id, $image, $meta, $storage ) {
global $wpsmush_resize, $wpsmushit_admin;
if ( empty( $attachment_id ) || empty( $meta ) || ! is_object( $storage ) ) {
return $meta;
}
//Initialize resize class
$wpsmush_resize->initialize();
//If resizing not enabled, or if both max width and height is set to 0, return
if ( ! $wpsmush_resize->resize_enabled || ( $wpsmush_resize->max_w == 0 && $wpsmush_resize->max_h == 0 ) ) {
return $meta;
}
$file_path = $storage->get_image_abspath( $image );
if ( ! file_exists( $file_path ) ) {
return $meta;
}
$ext = $this->get_file_ext( $file_path );
$mime_supported = in_array( $ext, $wpsmushit_admin->mime_types );
//If type of upload doesn't matches the criteria return
if ( ! empty( $mime ) && ! $mime_supported = apply_filters( 'wp_smush_resmush_mime_supported', $mime_supported, $mime ) ) {
return $meta;
}
//If already resized
if ( ! empty( $meta['wp_smush_resize_savings'] ) ) {
return $meta;
}
$sizes = $storage->get_image_sizes();
$should_resize = true;
/**
* Filter whether the NextGen image should be resized or not
*
* @since 2.3
*
* @param bool $should_resize
*
* @param object NextGen Gallery image object
*
* @param array NextGen Gallery image object
*
* @param string $context The type of upload action. Values include 'upload' or 'sideload'.
*
*/
if ( ! $should_resize = apply_filters( 'wp_smush_resize_nextgen_image', $should_resize, $image, $meta ) ) {
return $meta;
}
$original_file_size = filesize( $file_path );
$resized = $wpsmush_resize->perform_resize( $file_path, $original_file_size, $attachment_id, '', false );
//If resize wasn't successful
if ( ! $resized || $resized['filesize'] == $original_file_size ) {
//Unlink Image, if other size path is not similar
$this->maybe_unlink( $file_path, $sizes, $image, $storage );
return $meta;
} else {
//Else Replace the Original file with resized file
$replaced = @copy( $resized['file_path'], $file_path );
$this->maybe_unlink( $resized['file_path'], $sizes, $image, $storage );
}
if ( $replaced ) {
//Updated File size
$u_file_size = filesize( $file_path );
$savings['bytes'] = $original_file_size > $u_file_size ? $original_file_size - $u_file_size : 0;
$savings['size_before'] = $original_file_size;
$savings['size_after'] = $u_file_size;
//Store savings in meta data
if ( ! empty( $savings ) ) {
$meta['wp_smush_resize_savings'] = $savings;
}
//Update dimensions of the image in meta
$meta['width'] = ! empty( $resized['width'] ) ? $resized['width'] : $meta['width'];
$meta['full']['width'] = ! empty( $resized['width'] ) ? $resized['width'] : $meta['width'];
$meta['height'] = ! empty( $resized['height'] ) ? $resized['height'] : $meta['height'];
$meta['full']['height'] = ! empty( $resized['height'] ) ? $resized['height'] : $meta['height'];
/**
* Called after the image has been successfully resized
* Can be used to update the stored stats
*/
do_action( 'wp_smush_image_nextgen_resized', $attachment_id, array( 'stats' => $savings ) );
/**
* Called after the image has been successfully resized
* Can be used to update the stored stats
*/
do_action( 'wp_smush_image_resized', $attachment_id, $savings );
}
return $meta;
}
/**
* Unlinks a file if none of the thumbnails have same file path
*
* @param $path Full path of the file to be unlinked
* @param $sizes All the available image sizes for the image
* @param $image Image object to fetch the full path of all the sizes
* @param $storage Gallery storage object
*
* @return bool Whether the file was unlinked or not
*
*/
function maybe_unlink( $path, $sizes, $image, $storage ) {
if ( empty( $path ) || ! is_object( $storage ) || ! is_object( $image ) ) {
return false;
}
//Unlink directly if meta value is not specified
if ( empty( $sizes ) ) {
@unlink( $path );
}
$unlink = true;
//Check if the file name is similar to one of the image sizes
$path_parts = pathinfo( $path );
$filename = ! empty( $path_parts['basename'] ) ? $path_parts['basename'] : $path_parts['filename'];
foreach ( $sizes as $image_size ) {
$file_path_size = $storage->get_image_abspath( $image, $image_size );
if ( false === strpos( $file_path_size, $filename ) ) {
continue;
}
$unlink = false;
}
//Unlink the file
if ( $unlink ) {
@unlink( $path );
}
return $unlink;
}
}//End of Class
}//End Of if class not exists
//Extend NextGen Mixin class to smush dynamic images
if ( class_exists( 'WpSmushNextGen' ) ) {
global $WpSmush, $wpsmushnextgen;
if ( ! is_object( $wpsmushnextgen ) ) {
$wpsmushnextgen = new WpSmushNextGen();
}
//Extend Nextgen Mixin class and override the generate_image_size, to optimize dynamic thumbnails, generated by nextgen, check for auto smush
if ( ! class_exists( 'WpSmushNextGenDynamicThumbs' ) && class_exists( 'Mixin' ) && $WpSmush->is_auto_smush_enabled() ) {
class WpSmushNextGenDynamicThumbs extends Mixin {
/**
* Overrides the NextGen Gallery function, to smush the dynamic images and thumbnails created by gallery
*
* @param C_Image|int|stdClass $image
* @param $size
* @param null $params
* @param bool|false $skip_defaults
*
* @return bool|object
*/
function generate_image_size( $image, $size, $params = null, $skip_defaults = false ) {
global $WpSmush;
$image_id = ! empty( $image->pid ) ? $image->pid : '';
//Get image from storage object if we don't have it already
if ( empty( $image_id ) ) {
//Get metadata For the image
// Registry Object for NextGen Gallery
$registry = C_Component_Registry::get_instance();
//Gallery Storage Object
$storage = $registry->get_utility( 'I_Gallery_Storage' );
$image_id = $storage->object->_get_image_id( $image );
}
//Call the actual function to generate the image, and pass the image to smush
$success = $this->call_parent( 'generate_image_size', $image, $size, $params, $skip_defaults );
if ( $success ) {
$filename = $success->fileName;
//Smush it, if it exists
if ( file_exists( $filename ) ) {
$response = $WpSmush->do_smushit( $filename, $image_id, 'nextgen' );
//If the image was smushed
if ( ! is_wp_error( $response ) && ! empty( $response['data'] ) && $response['data']->bytes_saved > 0 ) {
//Check for existing stats
if ( ! empty( $image->meta_data ) && ! empty( $image->meta_data['wp_smush'] ) ) {
$stats = $image->meta_data['wp_smush'];
} else {
//Initialize stats array
$stats = array(
"stats" => array_merge( $WpSmush->_get_size_signature(), array(
'api_version' => - 1,
'lossy' => - 1,
'keep_exif' => false
)
),
'sizes' => array()
);
$stats['bytes'] = $response['data']->bytes_saved;
$stats['percent'] = $response['data']->compression;
$stats['size_after'] = $response['data']->after_size;
$stats['size_before'] = $response['data']->before_size;
$stats['time'] = $response['data']->time;
}
$stats['sizes'][ $size ] = (object) $WpSmush->_array_fill_placeholders( $WpSmush->_get_size_signature(), (array) $response['data'] );
if ( isset( $image->metadata ) ) {
$image->meta_data['wp_smush'] = $stats;
nggdb::update_image_meta( $image->pid, $image->meta_data );
}
//Allows To get the stats for each image, after the image is smushed
do_action( 'wp_smush_nextgen_image_stats', $image_id, $stats );
}
}
}
return $success;
}
}
}
}
if ( class_exists( 'WpSmushNextGenDynamicThumbs' ) ) {
if ( ! get_option( 'ngg_options' ) ) {
return;
}
$storage = C_Gallery_Storage::get_instance();
$storage->get_wrapped_instance()->add_mixin( 'WpSmushNextGenDynamicThumbs' );
}