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<?php

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/**

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* Created by PhpStorm.

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* User: admin

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* Date: 20.11.2018

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* Time: 12:52

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namespace NetworkPosts\Components;

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use NetworkPosts\Components\Resizer\NetsPostsThumbnailBlogSettings;

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use NetworkPosts\Components\resizer\NetsPostsThumbnailSizeSettings;

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class NetsPostsThumbnailManager

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{

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private static $instance;

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static $sizes;

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private function __construct(){}

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private static function init_thumbnail_sizes()

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{

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$allowed_blogs = NetsPostsThumbnailBlogSettings::get_allowed_blogs();

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$global_blogs = NetsPostsThumbnailBlogSettings::get_globals();

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$blogs = array_intersect($allowed_blogs, $global_blogs);

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$blog_id = get_current_blog_id();

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// append current blog id if it isn't global and has been removed

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if (!in_array($blog_id, $blogs) &&

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NetsPostsThumbnailBlogSettings::is_allowed_for_blog($blog_id)) {

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$blogs[] = $blog_id;

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}

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self::$sizes = self::get_thumbnail_sizes($blogs);

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self::register_sizes();

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}

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private static function get_thumbnail_sizes($blog_ids)

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{

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global $_wp_additional_image_sizes;

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$sizes = array();

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foreach ($blog_ids as $id) {

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switch_to_blog($id);

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foreach (get_intermediate_image_sizes() as $_size) {

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if (in_array($_size, array('thumbnail', 'medium', 'medium_large', 'large'))) {

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$sizes[$_size]['width'] = get_option("{$_size}_size_w");

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$sizes[$_size]['height'] = get_option("{$_size}_size_h");

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$sizes[$_size]['crop'] = (bool)get_option("{$_size}_crop");

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} elseif (isset($_wp_additional_image_sizes[$_size])) {

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$sizes[$_size] = array(

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'width' => $_wp_additional_image_sizes[$_size]['width'],

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'height' => $_wp_additional_image_sizes[$_size]['height'],

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'crop' => $_wp_additional_image_sizes[$_size]['crop'],

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);

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}

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}

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$blog_custom_sizes = NetsPostsThumbnailSizeSettings::get_blog_image_sizes();

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foreach ($blog_custom_sizes as $size_id => $db_size){

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$size = $db_size['data'];

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$size['crop'] = $db_size['crop'];

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if( isset( $db_size['crop_x'] ) ) {

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$size['crop_x'] = $db_size['crop_x'];

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} else {

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$size['crop_x'] = 'center';

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}

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if( isset( $db_size['crop_y'] ) ) {

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$size['crop_y'] = $db_size['crop_y'];

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} else {

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$size['crop_y'] = 'center';

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}

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$sizes[$size['alias']] = $size;

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}

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restore_current_blog();

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}

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return $sizes;

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}

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/**

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* @param $args array

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* @required $post_id int

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* @required $size_name string - size alias name

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* $args[image_class] string

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* $args[column] int - decide whether posts are divided to columns or not

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* are in one place

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* $args[compress_images] boolean

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* @return string - returns img html string

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public static function get_thumbnail( $post_id, $size_name, array $args = [] ) {

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if(self::is_initialized()) {

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$thumb_id = has_post_thumbnail($post_id);

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if (!$thumb_id) {

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return false;

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}

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if (isset($args['image_class'])) {

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$image_class = esc_html($args['image_class']);

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} else {

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$image_class = '';

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}

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$attrs = array('class' => $image_class, 'srcset' => '');

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$use_compressed_images = isset($args['compress_images']) && $args['compress_images'];

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if ($use_compressed_images) {

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$img = get_the_post_thumbnail($post_id, $size_name, $attrs);

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} else {

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$img = get_the_post_thumbnail($post_id, $size_name, $attrs);

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$img = preg_replace('/(\bsizes\=.*?\")[\s\/]/', "", $img);

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$img = preg_replace('/(\bsrcset\=.*?\\")[\s\/]/', "", $img);

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}

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return $img;

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}

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return false;

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}

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private static function register_sizes(){

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foreach (self::$sizes as $name => $size){

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if($size['crop']) {

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$crop = array();

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if(isset($size['crop_x'])){

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$crop[] = $size['crop_x'];

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}

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if(isset($size['crop_y'])){

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$crop[] = $size['crop_y'];

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}

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if(empty($crop)){

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add_image_size($name, $size['width'], $size['height'], true);

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}

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else{

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add_image_size($name, $size['width'], $size['height'], $crop);

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}

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}

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else{

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add_image_size($name, $size['width'], $size['height']);

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}

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}

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}

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static function get_estore_product_thumbnail( $image_url, $alt, $size = 'thumbnail', $image_class = '' ) {

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if(self::is_initialized()) {

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if (!empty($image_url)) {

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$img = '<img src="' . $image_url . '" alt="' . $alt . '" ';

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if ($image_class) {

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$img .= 'class="' . $image_class;

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}

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$img .= '"';

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if (array_key_exists($size, self::$sizes)) {

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$img .= 'width="' . self::$sizes[$size]['width'] . 'px" ';

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$img .= 'height="' . self::$sizes[$size]['height'] . 'px"';

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}

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$img .= '/>';

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return $img;

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}

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}

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return false;

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}

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static function initialize(){

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if (!self::$instance) {

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self::$instance = new NetsPostsThumbnailManager();

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self::init_thumbnail_sizes();

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}

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}

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private static function is_initialized(){

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return isset(self::$sizes);

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}

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}

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