<?php

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/**

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* NextGen integration: NextGen class

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*

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* @package Smush\Core\Integrations

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* @version 1.0

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*

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* @author Umesh Kumar <umesh@incsub.com>

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*

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* @copyright (c) 2016, Incsub (http://incsub.com)

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*/

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namespace Smush\Core\Integrations;

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use C_Component_Registry;

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use C_Gallery_Storage;

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use Exception;

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use nggdb;

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use Smush\Core\Core;

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use Smush\Core\Helper;

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use stdClass;

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use WP_Error;

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use WP_Smush;

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if ( ! defined( 'WPINC' ) ) {

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die;

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}

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/**

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* Class NextGen

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*/

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class NextGen extends Abstract_Integration {

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/**

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* Contains the total Stats, for displaying it on bulk page

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*

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* @var array $stats

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*/

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public $stats = array(

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'savings_bytes' => 0,

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'size_before' => 0,

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'size_after' => 0,

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'savings_percent' => 0,

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);

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/**

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* NextGen admin module.

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*

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* @var Nextgen\Admin

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*/

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public $ng_admin;

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/**

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* NextGen stats module.

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*

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* @var Nextgen\Stats

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*/

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public $ng_stats;

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/**

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* Nextgen constructor.

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*/

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public function __construct() {

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$this->module = 'nextgen';

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$this->class = 'pro';

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$this->enabled = class_exists( '\C_NextGEN_Bootstrap' );

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parent::__construct();

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$is_pro = WP_Smush::is_pro();

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// Hook at the end of setting row to output a error div.

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add_action( 'smush_setting_column_right_inside', array( $this, 'additional_notice' ) );

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// Do not continue if not PRO member or NextGen plugin not installed.

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if ( ! $is_pro || ! $this->enabled || ! $this->is_enabled() ) {

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// Add Pro tag.

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add_action( 'smush_setting_column_tag', array( $this, 'add_pro_tag' ) );

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return;

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}

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$this->add_mixins();

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add_action( 'admin_init', array( $this, 'init_modules' ) );

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/**

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* ACTIONS

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*/

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// Auto Smush image, if enabled, runs after NextGen is finished uploading the image.

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// Allows to override whether to auto smush NextGen image or not.

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$auto_smush = apply_filters( 'smush_nextgen_auto', WP_Smush::get_instance()->core()->mod->smush->is_auto_smush_enabled() );

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if ( $auto_smush ) {

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add_action( 'ngg_added_new_image', array( $this, 'auto_smush' ) );

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}

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// Update Total Image count.

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add_action( 'ngg_added_new_image', array( $this, 'update_stats_image_count' ), 10 );

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/**

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* AJAX

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*/

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// Single Smush/Manual Smush: Handles the Single/Manual smush request for NextGen Gallery.

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add_action( 'wp_ajax_smush_manual_nextgen', array( $this, 'manual_nextgen' ) );

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// Restore Image: Handles the single/Manual restore image request for NextGen Gallery.

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add_action( 'wp_ajax_smush_restore_nextgen_image', array( $this, 'restore_image' ) );

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// Resmush Image: Handles the single/Manual resmush image request for NextGen Gallery.

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add_action( 'wp_ajax_smush_resmush_nextgen_image', array( $this, 'resmush_image' ) );

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// Bulk Smush NextGen images.

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add_action( 'wp_ajax_wp_smushit_nextgen_bulk', array( $this, 'smush_bulk' ) );

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}

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/**************************************

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*

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* OVERWRITE PARENT CLASS FUNCTIONALITY

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*/

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/**

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* Filters the setting variable to add NextGen setting title and description

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*

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* @param array $settings Settings.

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*

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* @return mixed

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*/

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public function register( $settings ) {

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$settings[ $this->module ] = array(

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'label' => esc_html__( 'Enable NextGen Gallery integration', 'wp-smushit' ),

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'short_label' => esc_html__( 'NextGen Gallery', 'wp-smushit' ),

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'desc' => esc_html__( 'Allow smushing images directly through NextGen Gallery settings.', 'wp-smushit' ),

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);

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return $settings;

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}

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/**

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* Disable module functionality if not PRO.

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*

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* @return bool

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*/

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public function setting_status() {

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return ! WP_Smush::is_pro() ? true : ! $this->enabled;

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}

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/**************************************

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*

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* PUBLIC CLASSES

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*/

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/**

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* Initialize the stats and admin modules, once admin is ready.

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*

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* @since 3.3.0

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*/

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public function init_modules() {

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$this->ng_stats = new NextGen\Stats();

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$this->ng_admin = new NextGen\Admin( $this->ng_stats );

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}

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/**

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* Check if NextGen integration is active.

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*

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* @since 2.9.0

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*

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* @return bool|mixed

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*/

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public function is_enabled() {

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return $this->settings->get( 'nextgen' );

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}

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/**

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* Bulk Smush for Nextgen.

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*

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* @throws Exception Exception.

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*/

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public function smush_bulk() {

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$stats = array();

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check_ajax_referer( 'wp-smush-ajax', '_nonce' );

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// Check For permission.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );

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}

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if ( empty( $_GET['attachment_id'] ) ) {

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wp_send_json_error(

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array(

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'error' => 'missing_id',

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'error_message' => esc_html__( 'No attachment ID was received', 'wp-smushit' ),

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'file_name' => 'undefined',

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)

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);

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}

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$atchmnt_id = (int) $_GET['attachment_id'];

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$smush = $this->smush_image( $atchmnt_id, '', true );

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if ( is_wp_error( $smush ) ) {

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$error_message = $smush->get_error_message();

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// Check for timeout error and suggest to filter timeout.

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if ( strpos( $error_message, 'timed out' ) ) {

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$error = 'timeout';

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$error_message = esc_html__( 'Smush request timed out. You can try setting a higher value ( > 60 ) for `WP_SMUSH_TIMEOUT`.', 'wp-smushit' );

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}

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$error = isset( $error ) ? $error : 'other';

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$file_name = $this->get_nextgen_image_from_id( $atchmnt_id );

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wp_send_json_error(

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array(

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'error' => $error,

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'stats' => $stats,

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'error_message' => $error_message,

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'file_name' => isset( $file_name->filename ) ? $file_name->filename : 'undefined',

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)

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);

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}

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// Check if a re-Smush request, update the re-Smush list.

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if ( ! empty( $_REQUEST['is_bulk_resmush'] ) ) {

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$this->ng_stats->get_reoptimize_list()->remove_id( $atchmnt_id );

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}

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$stats['is_lossy'] = ! empty( $smush['stats'] ) ? $smush['stats']['lossy'] : 0;

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// Size before and after smush.

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$stats['size_before'] = ! empty( $smush['stats'] ) ? $smush['stats']['size_before'] : 0;

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$stats['size_after'] = ! empty( $smush['stats'] ) ? $smush['stats']['size_after'] : 0;

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// Get the re-Smush IDs list.

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$this->ng_admin->resmush_ids = $this->ng_stats->get_reoptimize_list()->get_ids();

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$resmush_count = ! empty( $this->ng_admin->resmush_ids ) ? count( $this->ng_admin->resmush_ids ) : 0;

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$smushed_images = $this->ng_stats->get_ngg_images( 'smushed' );

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// Remove re-Smush IDs from smushed images list.

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if ( $resmush_count > 0 && is_array( $this->ng_admin->resmush_ids ) ) {

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foreach ( $smushed_images as $image_k => $image ) {

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if ( in_array( $image_k, $this->ng_admin->resmush_ids, true ) ) {

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unset( $smushed_images[ $image_k ] );

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}

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}

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}

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// Get the image count and smushed images count.

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$image_count = ! empty( $smush ) && ! empty( $smush['sizes'] ) ? count( $smush['sizes'] ) : 0;

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$smushed_count = is_array( $smushed_images ) ? count( $smushed_images ) : 0;

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$stats['smushed'] = ! empty( $this->ng_admin->resmush_ids ) ? $smushed_count - $resmush_count : $smushed_count;

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$stats['count'] = $image_count;

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wp_send_json_success(

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array(

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'stats' => $stats,

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)

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);

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}

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/**

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* Show additional notice if the required plugins are not installed.

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*

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* @since 2.8.0

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*

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* @param string $name Setting name.

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*/

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public function additional_notice( $name ) {

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if ( $this->module === $name && ! $this->enabled ) {

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?>

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<div class="sui-toggle-content">

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<div class="sui-notice">

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<div class="sui-notice-content">

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<div class="sui-notice-message">

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<i class="sui-notice-icon sui-icon-info" aria-hidden="true"></i>

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<p><?php esc_html_e( 'To use this feature you need to be using NextGen Gallery.', 'wp-smushit' ); ?></p>

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</div>

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</div>

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</div>

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</div>

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<?php

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}

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}

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/**

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* Get the NextGen Image object from attachment id

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*

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* @param string $pid NextGen Gallery Image ID.

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*

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* @return stdClass

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*/

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public function get_nextgen_image_from_id( $pid ) {

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// Registry Object for NextGen Gallery.

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$registry = C_Component_Registry::get_instance();

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// Gallery Storage Object.

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$storage = $registry->get_utility( 'I_Gallery_Storage' );

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return $storage->object->_image_mapper->find( $pid );

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}

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/**

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* Get image mime type

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*

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* @param string $file_path File path.

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*

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* @return bool|string

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*/

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public function get_file_type( $file_path ) {

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if ( empty( $file_path ) || ! file_exists( $file_path ) ) {

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return false;

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}

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$image_mime = false;

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if ( function_exists( 'exif_imagetype' ) ) {

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$image_type = exif_imagetype( $file_path );

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if ( ! empty( $image_type ) ) {

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$image_mime = image_type_to_mime_type( $image_type );

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}

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} else {

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$image_details = getimagesize( $file_path );

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$image_mime = ! empty( $image_details ) && is_array( $image_details ) ? $image_details['mime'] : '';

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}

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return $image_mime;

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}

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/**

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* Performs the actual smush process

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*

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* @usedby: `manual_nextgen`, `auto_smush`, `smush_bulk`

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*

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* @param string $pid NextGen Gallery Image id.

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* @param string $image Nextgen gallery image object.

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* @param bool $is_bulk Whether it's called by bulk smush or not.

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*

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* @return mixed Stats / Status / Error

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*/

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public function smush_image( $pid = '', $image = '', $is_bulk = false ) {

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// Get image, if we have image id.

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if ( ! empty( $pid ) ) {

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$image = $this->get_nextgen_image_from_id( $pid );

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} elseif ( ! empty( $image ) ) {

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$pid = $this->get_nextgen_id_from_image( $image );

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}

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$metadata = ! empty( $image ) ? $image->meta_data : '';

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if ( empty( $metadata ) ) {

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/**

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* We use error_msg for single images to append to the div and error_message to

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* append to bulk smush errors list.

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*/

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wp_send_json_error(

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array(

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'error' => 'no_metadata',

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'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>',

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'error_message' => esc_html__( "We couldn't find the metadata for the image, possibly the image has been deleted.", 'wp-smushit' ),

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'file_name' => isset( $image->filename ) ? $image->filename : 'undefined',

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)

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);

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}

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$registry = C_Component_Registry::get_instance();

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$storage = $registry->get_utility( 'I_Gallery_Storage' );

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// Perform Resizing.

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$metadata = $this->resize_image( $pid, $image, $metadata, $storage );

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// Store Meta.

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$image->meta_data = $metadata;

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nggdb::update_image_meta( $image->pid, $image->meta_data );

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// Smush the main image and its sizes.

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$smush = $this->resize_from_meta_data( $image );

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$status = '';

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if ( ! is_wp_error( $smush ) ) {

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$status = $this->ng_admin->show_stats( $pid, $smush );

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}

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if ( ! $is_bulk ) {

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if ( is_wp_error( $smush ) ) {

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return $smush;

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}

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return $status;

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}

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return $smush;

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}

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/**

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* Refreshes the total image count from the stats when a new image is added to nextgen gallery

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* Should be called only if image count need to be updated, use total_count(), otherwise

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*/

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public function update_stats_image_count() {

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NextGen\Stats::total_count( true );

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}

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/**

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* Handles the smushing of each image and its registered sizes

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* Calls the function to update the compression stats

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*/

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public function manual_nextgen() {

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$pid = ! empty( $_GET['attachment_id'] ) ? absint( (int) $_GET['attachment_id'] ) : '';

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$nonce = ! empty( $_GET['_nonce'] ) ? wp_unslash( $_GET['_nonce'] ) : '';

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// Verify Nonce.

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if ( ! wp_verify_nonce( $nonce, 'wp_smush_nextgen' ) ) {

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wp_send_json_error(

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array(

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'error' => 'nonce_verification_failed',

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)

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);

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}

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// Check for media upload permission.

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if ( ! Helper::is_user_allowed( 'upload_files' ) ) {

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wp_send_json_error(

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array(

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'error_msg' => __( "You don't have permission to work with uploaded files.", 'wp-smushit' ),

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)

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);

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}

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if ( empty( $pid ) ) {

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wp_send_json_error(

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array(

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'error_msg' => __( 'No attachment ID was provided.', 'wp-smushit' ),

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)

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);

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}

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$status = $this->smush_image( $pid );

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// Send stats.

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if ( is_wp_error( $status ) ) {

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/**

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* Not used for bulk smush.

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*

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* @param WP_Error $smush

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*/

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wp_send_json_error( $status->get_error_message() );

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}

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[443] Fix | Delete

wp_send_json_success( $status );

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}

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[446] Fix | Delete

/**

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* Process auto smush request for NextGen gallery images.

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*

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* @param stdClass $image Image.

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*/

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public function auto_smush( $image ) {

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if ( ! $this->ng_stats || ! $this->ng_admin ) {

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$this->init_modules();

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}

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$this->smush_image( '', $image );

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}

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[460] Fix | Delete

/**

[461] Fix | Delete

* Checks for file backup, if available for any of the size,

[462] Fix | Delete

* Function returns true

[463] Fix | Delete

*

[464] Fix | Delete

* @param string $pid NextGen gallery image ID.

[465] Fix | Delete

* @param array $attachment_data Attachment data.

[466] Fix | Delete

*

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* @return bool

[468] Fix | Delete

*/

[469] Fix | Delete

public function show_restore_option( $pid, $attachment_data ) {

[470] Fix | Delete

$backup = WP_Smush::get_instance()->core()->mod->backup;

[471] Fix | Delete

[472] Fix | Delete

// Registry Object for NextGen Gallery.

[473] Fix | Delete

$registry = C_Component_Registry::get_instance();

[474] Fix | Delete

[475] Fix | Delete

/**

[476] Fix | Delete

* Gallery Storage Object.

[477] Fix | Delete

*

[478] Fix | Delete

* @var C_Gallery_Storage $storage

[479] Fix | Delete

*/

[480] Fix | Delete

$storage = $registry->get_utility( 'I_Gallery_Storage' );

[481] Fix | Delete

[482] Fix | Delete

$image = $storage->object->_image_mapper->find( $pid );

[483] Fix | Delete

[484] Fix | Delete

// Get image full path.

[485] Fix | Delete

$attachment_file_path = $storage->get_image_abspath( $image, 'full' );

[486] Fix | Delete

[487] Fix | Delete

// Get the backup path.

[488] Fix | Delete

$backup_path = $backup->get_image_backup_path( $attachment_file_path );

[489] Fix | Delete

[490] Fix | Delete

// If one of the backup(Ours/NextGen) exists, show restore option.

[491] Fix | Delete

if ( file_exists( $backup_path ) || file_exists( $attachment_file_path . '_backup' ) ) {

[492] Fix | Delete

return true;

[493] Fix | Delete

}

[494] Fix | Delete

[495] Fix | Delete

// Get Sizes, and check for backup.

[496] Fix | Delete

if ( empty( $attachment_data['sizes'] ) ) {

[497] Fix | Delete

return false;

[498] Fix | Delete

}

[499] Fix | Delete