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<?php

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/**

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* Media library class.

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* Responsible for displaying a UI (stats + action links) in the media library and the editor.

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* @since 3.4.0

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* @package Smush\App

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namespace Smush\App;

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use Smush\Core\Core;

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use Smush\Core\Helper;

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use Smush\Core\Media\Media_Item;

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use Smush\Core\Media\Media_Item_Optimizer;

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use Smush\Core\Media_Library\Media_Library_Row;

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use Smush\Core\Modules\Abstract_Module;

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use Smush\Core\Modules\Smush;

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use Smush\Core\Stats\Global_Stats;

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use WP_Post;

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use WP_Query;

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/**

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* Class Media_Library

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class Media_Library extends Abstract_Module {

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/**

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* Core instance.

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* @var Core $core

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private $core;

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private $allowed_image_sizes;

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/**

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* Media_Library constructor.

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* @param Core $core Core instance.

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public function __construct( Core $core ) {

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parent::__construct();

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$this->core = $core;

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}

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/**

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* Init functionality that is related to the UI.

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public function init_ui() {

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// Media library columns.

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add_filter( 'manage_media_columns', array( $this, 'columns' ) );

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add_filter( 'manage_upload_sortable_columns', array( $this, 'sortable_column' ) );

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add_action( 'manage_media_custom_column', array( $this, 'custom_column' ), 10, 2 );

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// Manage column sorting.

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add_action( 'pre_get_posts', array( $this, 'smushit_orderby' ) );

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// Smush image filter from Media Library.

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add_filter( 'ajax_query_attachments_args', array( $this, 'filter_media_query' ) );

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// Smush image filter from Media Library (list view).

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add_action( 'restrict_manage_posts', array( $this, 'add_filter_dropdown' ) );

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// Add pre WordPress 5.0 compatibility.

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add_filter( 'wp_kses_allowed_html', array( $this, 'filter_html_attributes' ) );

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add_action( 'admin_enqueue_scripts', array( $this, 'extend_media_modal' ), 15 );

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add_filter( 'wp_prepare_attachment_for_js', array( $this, 'smush_send_status' ), 99, 3 );

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}

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/**

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* Print column header for Smush results in the media library using the `manage_media_columns` hook.

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* @param array $defaults Defaults array.

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* @return array

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public function columns( $defaults ) {

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$defaults['smushit'] = 'Smush';

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return $defaults;

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}

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/**

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* Add the Smushit Column to sortable list

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* @param array $columns Columns array.

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* @return array

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public function sortable_column( $columns ) {

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$columns['smushit'] = 'smushit';

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return $columns;

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}

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/**

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* Print column data for Smush results in the media library using

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* the `manage_media_custom_column` hook.

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* @param string $column_name Column name.

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* @param int $id Attachment ID.

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public function custom_column( $column_name, $id ) {

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if ( 'smushit' === $column_name ) {

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$escaped_text = wp_kses_post( $this->generate_markup( $id ) );

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if ( $this->is_failed_processing_page() ) {

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$escaped_text = sprintf( '<div class="smush-failed-processing">%s</div>', $escaped_text );

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}

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echo $escaped_text;

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}

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}

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/**

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* Detect failed processing page.

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* @since 3.12.0

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* @return boolean

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private function is_failed_processing_page() {

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static $is_failed_processing_page;

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if ( null === $is_failed_processing_page ) {

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$filter = filter_input( INPUT_GET, 'smush-filter', FILTER_SANITIZE_SPECIAL_CHARS );

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$is_failed_processing_page = 'failed_processing' === $filter;

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}

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return $is_failed_processing_page;

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}

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/**

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* Order by query for smush columns.

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* @param WP_Query $query Query.

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* @return WP_Query

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public function smushit_orderby( $query ) {

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global $current_screen;

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// Filter only media screen.

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if (

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! is_admin()

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|| ( ! empty( $current_screen ) && 'upload' !== $current_screen->base )

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|| 'attachment' !== $query->get( 'post_type' )

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) {

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return $query;

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}

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$filter = filter_input( INPUT_GET, 'smush-filter', FILTER_SANITIZE_SPECIAL_CHARS );

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// Ignored.

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if ( 'ignored' === $filter ) {

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$query->set( 'meta_query', $this->query_ignored() );

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return $query;

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} elseif ( 'unsmushed' === $filter ) {

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// Not processed.

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$query->set( 'meta_query', $this->query_unsmushed() );

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return $query;

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} elseif ( 'failed_processing' === $filter ) {

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// Failed processing.

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$query->set( 'meta_query', $this->query_failed_processing() );

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return $query;

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}

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// TODO: do we need this?

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$orderby = $query->get( 'orderby' );

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if ( isset( $orderby ) && 'smushit' === $orderby ) {

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$query->set(

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'meta_query',

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array(

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'relation' => 'OR',

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array(

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'key' => Smush::$smushed_meta_key,

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'compare' => 'EXISTS',

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array(

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'key' => Smush::$smushed_meta_key,

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'compare' => 'NOT EXISTS',

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)

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);

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$query->set( 'orderby', 'meta_value_num' );

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}

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return $query;

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}

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/**

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* Add our filter to the media query filter in Media Library.

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* @since 2.9.0

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* @see wp_ajax_query_attachments()

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* @param array $query Query.

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* @return mixed

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public function filter_media_query( $query ) {

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$post_query = filter_input( INPUT_POST, 'query', FILTER_SANITIZE_SPECIAL_CHARS, FILTER_REQUIRE_ARRAY );

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if ( ! isset( $post_query['stats'] ) ) {

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return $query;

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}

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$filter_name = $post_query['stats'];

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// Excluded.

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if ( 'excluded' === $filter_name ) {

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$query['meta_query'] = $this->query_ignored();

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} elseif ( 'unsmushed' === $filter_name ) {

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// Unsmushed.

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$query['meta_query'] = $this->query_unsmushed();

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} elseif ( 'failed_processing' === $filter_name ) {

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// Failed processing.

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$query['meta_query'] = $this->query_failed_processing();

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}

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return $query;

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}

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/**

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* Meta query for images skipped from bulk smush.

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* @return array

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private function query_failed_processing() {

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// Custom query to add error items.

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add_filter( 'posts_where_request', array( $this, 'filter_query_to_add_media_item_errors' ) );

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// Custom query for failed on optimization.

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$meta_query = array(

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'relation' => 'AND',

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array(

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'key' => Media_Item_Optimizer::ERROR_META_KEY,

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'compare' => 'EXISTS',

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array(

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'key' => Media_Item::IGNORED_META_KEY,

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'compare' => 'NOT EXISTS',

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);

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return $meta_query;

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}

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public function filter_query_to_add_media_item_errors( $where ) {

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global $wpdb;

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remove_filter( 'posts_where_request', array( $this, 'filter_query_to_add_media_item_errors' ) );

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$media_error_ids = Global_Stats::get()->get_error_list()->get_ids();

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if ( empty( $media_error_ids ) ) {

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return $where;

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}

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$where .= sprintf( " OR {$wpdb->posts}.ID IN (%s)", join( ',', $media_error_ids ) );

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return $where;

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}

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/**

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* Meta query for images skipped from bulk smush.

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* @return array

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private function query_ignored() {

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return array(

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array(

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'key' => Media_Item::IGNORED_META_KEY,

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'compare' => 'EXISTS',

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);

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}

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/**

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* Meta query for uncompressed images.

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* @return array

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private function query_unsmushed() {

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return Core::get_unsmushed_meta_query();

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}

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/**

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* Adds a search dropdown in Media Library list view to filter out images that have been

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* ignored with bulk Smush.

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* @since 3.2.0

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public function add_filter_dropdown() {

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$scr = get_current_screen();

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if ( 'upload' !== $scr->base ) {

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return;

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}

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$ignored = filter_input( INPUT_GET, 'smush-filter', FILTER_SANITIZE_SPECIAL_CHARS );

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<?php esc_html_e( 'Filter by Smush status', 'wp-smushit' ); ?>

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</label>

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</select>

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<?php

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}

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/**

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* Data attributes are not allowed on <a> elements on WordPress before 5.0.0.

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* Add backward compatibility.

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* @since 3.5.0

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* @see https://github.com/WordPress/WordPress/commit/a0309e80b6a4d805e4f230649be07b4bfb1a56a5#diff-a0e0d196dd71dde453474b0f791828fe

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* @param array $context Context.

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* @return mixed

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public function filter_html_attributes( $context ) {

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global $wp_version;

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if ( version_compare( '5.0.0', $wp_version, '<' ) ) {

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return $context;

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}

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$context['a']['data-tooltip'] = true;

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$context['a']['data-id'] = true;

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$context['a']['data-nonce'] = true;

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return $context;

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}

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/**

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* Load media assets.

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* Localization also used in Gutenberg integration.

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public function extend_media_modal() {

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// Get current screen.

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$current_screen = get_current_screen();

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// Only run on required pages.

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if ( ! empty( $current_screen ) && ! in_array( $current_screen->id, Core::$external_pages, true ) && empty( $current_screen->is_block_editor ) ) {

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return;

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}

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if ( wp_script_is( 'smush-backbone-extension', 'enqueued' ) ) {

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return;

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}

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wp_enqueue_script(

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'smush-backbone-extension',

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WP_SMUSH_URL . 'app/assets/js/smush-media.min.js',

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array(

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'jquery',

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'media-editor', // Used in image filters.

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'media-views',

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'media-grid',

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'wp-util',

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'wp-api',

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WP_SMUSH_VERSION,

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true

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);

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wp_localize_script(

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'smush-backbone-extension',

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'smush_vars',

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array(

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'strings' => array(

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'stats_label' => esc_html__( 'Smush', 'wp-smushit' ),

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'filter_all' => esc_html__( 'Smush: All images', 'wp-smushit' ),

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'filter_not_processed' => esc_html__( 'Smush: Not processed', 'wp-smushit' ),

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'filter_excl' => esc_html__( 'Smush: Bulk ignored', 'wp-smushit' ),

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'filter_failed' => esc_html__( 'Smush: Failed Processing', 'wp-smushit' ),

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'gb' => array(

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'stats' => esc_html__( 'Smush Stats', 'wp-smushit' ),

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'select_image' => esc_html__( 'Select an image to view Smush stats.', 'wp-smushit' ),

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'size' => esc_html__( 'Image size', 'wp-smushit' ),

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'savings' => esc_html__( 'Savings', 'wp-smushit' ),

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)

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);

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}

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/**

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* Send smush status for attachment.

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* @param array $response Response array.

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* @param WP_Post $attachment Attachment object.

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* @return mixed

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public function smush_send_status( $response, $attachment ) {

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if ( ! isset( $attachment->ID ) ) {

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return $response;

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}

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// Validate nonce.

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$status = $this->smush_status( $attachment->ID );

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$response['smush'] = $status;

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return $response;

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}

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/**

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* Get the smush button text for attachment.

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* @param int $id Attachment ID for which the Status has to be set.

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* @return string

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private function smush_status( $id ) {

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$action = filter_input( INPUT_POST, 'action', FILTER_SANITIZE_SPECIAL_CHARS, FILTER_NULL_ON_FAILURE );

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// Show Temporary Status, For Async Optimisation, No Good workaround.

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if ( ! get_transient( 'wp-smush-restore-' . $id ) && 'upload-attachment' === $action && $this->settings->get( 'auto' ) ) {

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$status_txt = '<p class="smush-status">' . __( 'Smushing in progress...', 'wp-smushit' ) . '</p>';

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$button_txt = __( 'Smush Now!', 'wp-smushit' );

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return $this->column_html( $id, $status_txt, $button_txt, false );

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}

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// Else return the normal status.

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return trim( $this->generate_markup( $id ) );

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}

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/**

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* Skip messages respective to their IDs.

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* @param string $msg_id Message ID.

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* TODO: Remove this method as no longer need.

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* @return bool

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public function skip_reason( $msg_id ) {

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$count = count( get_intermediate_image_sizes() );

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$smush_orgnl_txt = sprintf(

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/* translators: %s: number of thumbnails */

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esc_html__( 'When you upload an image to WordPress it automatically creates %s thumbnail sizes that are commonly used in your pages. WordPress also stores the original full-size image, but because these are not usually embedded on your site we don’t Smush them. Pro users can override this.', 'wp-smushit' ),

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$count

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);

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$skip_msg = array(

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'large_size' => $smush_orgnl_txt,

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'size_limit' => esc_html__( "Image couldn't be smushed as it exceeded the 5Mb size limit, Pro users can smush images without any size restriction.", 'wp-smushit' ),

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);

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$skip_rsn = '';

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if ( ! empty( $skip_msg[ $msg_id ] ) ) {

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$skip_rsn = '<a href="https://wpmudev.com/project/wp-smush-pro/?utm_source=smush&utm_medium=plugin&utm_campaign=smush_medialibrary_savings" target="_blank">

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<span class="sui-tag sui-tag-purple sui-tag-sm">' . esc_html__( 'PRO', 'wp-smushit' ) . '</span></span></a>';

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}

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return $skip_rsn;

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}

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/**

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* Generate HTML for image status on the media library page.

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* @since 3.5.0 Refactored from set_status().

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* @param int $id Attachment ID.

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* @return string HTML content or array of results.

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public function generate_markup( $id ) {

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$media_lib_item = new Media_Library_Row( $id );

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return $media_lib_item->generate_markup();

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}

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/**

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* Print the column html.

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* @param string $id Media id.

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* @param string $html Status text.

[485] Fix | Delete

* @param string $button_txt Button label.

[486] Fix | Delete

* @param boolean $show_button Whether to shoe the button.

[487] Fix | Delete

[488] Fix | Delete

* @return string

[489] Fix | Delete

[490] Fix | Delete

private function column_html( $id, $html = '', $button_txt = '', $show_button = true ) {

[491] Fix | Delete

// Don't proceed if attachment is not image, or if image is not a jpg, png or gif, or if is not found.

[492] Fix | Delete

$is_smushable = Helper::is_smushable( $id );

[493] Fix | Delete

if ( ! $is_smushable ) {

[494] Fix | Delete

return false === $is_smushable ? esc_html__( 'Image not found!', 'wp-smushit' ) : esc_html__( 'Not processed', 'wp-smushit' );

[495] Fix | Delete

}

[496] Fix | Delete

[497] Fix | Delete

// If we aren't showing the button.

[498] Fix | Delete

if ( ! $show_button ) {

[499] Fix | Delete