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<?php

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/**

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* Smush integration with WPBakery Page Builder: Composer class

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* @package Smush\Core\Integrations

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* @since 3.2.1

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* @author Anton Vanyukov <anton@incsub.com>

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namespace Smush\Core\Integrations;

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use Smush\Core\CDN\CDN_Helper;

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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 Composer for WPBakery Page Builder integration.

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* @since 3.2.1

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class Composer extends Abstract_Integration {

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/**

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* Composer constructor.

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* @since 3.2.1

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public function __construct() {

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$this->module = 'js_builder';

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$this->class = 'free';

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$this->check_for_js_builder();

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parent::__construct();

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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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if ( $this->settings->get( 'js_builder' ) ) {

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add_filter( 'image_make_intermediate_size', array( $this, 'process_image_resize' ) );

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// CDN link image handler for ajax based loading.

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add_filter( 'wp_get_attachment_image_src', array( $this, 'cdn_attachment_image_src' ) );

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

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* @since 3.2.1

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* @param array $settings Settings.

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* @return mixed

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public function register( $settings ) {

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

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'label' => esc_html__( 'Enable WPBakery Page Builder integration', 'wp-smushit' ),

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'short_label' => esc_html__( 'WPBakery Page Builder', 'wp-smushit' ),

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'desc' => esc_html__( 'Allow smushing images resized in WPBakery Page Builder editor.', 'wp-smushit' ),

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);

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return $settings;

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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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* @since 3.2.1

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* @param string $name Setting name.

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public function additional_notice( $name ) {

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

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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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* PUBLIC CLASSES

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/**

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* Check if the file source is a registered attachment and if not - Smush it.

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* TODO: with little adjustments this can be used for all page builders.

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* @since 3.2.1

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* @param string $image_src Image src.

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* @return string

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public function process_image_resize( $image_src ) {

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$vc_editable = filter_input( INPUT_GET, 'vc_editable', FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE );

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

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global $pagename, $vc_manager;

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/**

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* There are three types of situations:

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* 1. $vc_editable and $vc_action will be set in the frontend page builder

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* 2. $pagename in the backend.

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* 3. $vc_manager is a fallback (could possibly cause issues).

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if ( ( ! $vc_editable || 'vc_load_shortcode' !== $vc_action ) && ( ! isset( $pagename ) || 'page-builder' !== $pagename ) && ( ! $vc_manager || ! is_object( $vc_manager ) ) ) {

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return $image_src;

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}

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// Save the original image source.

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$vc_image = $image_src;

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// Remove the [width]x[height] params from URL.

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$size = array();

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if ( preg_match( '/(\d+)x(\d+)\.(?:' . implode( '|', array( 'gif', 'jpg', 'jpeg', 'png' ) ) . '){1}$/i', $image_src, $size ) ) {

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$image_src = str_replace( '-' . $size[1] . 'x' . $size[2], '', $image_src );

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}

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// Convert image src to URL.

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$upload_dir = wp_get_upload_dir();

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$image_url = str_replace( $upload_dir['path'], $upload_dir['url'], $image_src );

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// Try to get the attachment ID.

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$attachment_id = attachment_url_to_postid( $image_url );

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if ( ! wp_attachment_is_image( $attachment_id ) ) {

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return $vc_image;

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}

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$image = image_get_intermediate_size( $attachment_id, array( $size[1], $size[2] ) );

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if ( $image ) {

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return $vc_image;

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}

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// Smush image. TODO: should we update the stats?

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WP_Smush::get_instance()->core()->mod->smush->do_smushit( $vc_image );

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return $vc_image;

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}

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/**

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* Replace the image src with cdn link for all the Ajax requests.

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* @since 3.9.10

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* @see SMUSH-206

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* @param array|false $image {

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* Array of image data, or boolean false if no image is available.

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* @type string $0 Image source URL.

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* @type int $1 Image width in pixels.

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* @type int $2 Image height in pixels.

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* @type bool $3 Whether the image is a resized image.

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* }

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* @return mixed

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public function cdn_attachment_image_src( $image ) {

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if ( ! wp_doing_ajax() ) {

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return $image;

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}

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$cdn_helper = CDN_Helper::get_instance();

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if ( ! $cdn_helper->is_cdn_active() ) {

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return $image;

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}

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if ( is_array( $image ) && ! empty( $image[0] ) ) {

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$image[0] = $cdn_helper->generate_cdn_url( $image[0] );

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}

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return $image;

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}

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

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* PRIVATE CLASSES

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/**

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* Should only be active when WPBakery Page Builder is installed.

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* @since 3.2.1

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* @see https://kb.wpbakery.com/docs/inner-api/vc_disable_frontend

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private function check_for_js_builder() {

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// This function exists since WPBakery 4.0 (02.03.2014) and is listed

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// on their API docs. It should be stable enough to rely on it.

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$this->enabled = defined( 'WPB_VC_VERSION' ) && function_exists( 'vc_disable_frontend' );

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}

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}

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