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<?php

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/**

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* Extend NextGen Mixin class to smush dynamic images.

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* @package Smush\Core\Integrations\NextGen

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namespace Smush\Core\Integrations\NextGen;

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use C_Component_Registry;

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use C_Gallery_Storage;

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use C_Image;

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use Mixin;

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use nggdb;

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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 Thumbs

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class Thumbs extends Mixin {

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/**

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* Overrides the NextGen Gallery function, to smush the dynamic images and thumbnails created by gallery

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* @param int|object|C_Image $image Image object.

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* @param string $size Size.

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* @param array|null $params Optional. Parameters array.

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* @param bool $skip_defaults Optional. Skip defaults.

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* @return bool|object

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function generate_image_size( $image, $size, $params = null, $skip_defaults = false ) {

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

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$image_id = ! empty( $image->pid ) ? $image->pid : '';

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// Get image from storage object if we don't have it already.

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if ( empty( $image_id ) ) {

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// Get metadata For the image.

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// Registry Object for NextGen Gallery.

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$registry = C_Component_Registry::get_instance();

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/**

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* Gallery Storage Object.

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* @var C_Gallery_Storage $storage

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

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$image_id = $storage->object->_get_image_id( $image );

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}

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// Call the actual function to generate the image, and pass the image to smush.

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$success = $this->call_parent( 'generate_image_size', $image, $size, $params, $skip_defaults );

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if ( $success ) {

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$filename = $success->fileName;

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// Smush it, if it exists.

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if ( file_exists( $filename ) ) {

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$response = $smush->do_smushit( $filename );

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// If the image was smushed.

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if ( ! is_wp_error( $response ) && ! empty( $response['data'] ) && $response['data']->bytes_saved > 0 ) {

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// Check for existing stats.

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if ( ! empty( $image->meta_data ) && ! empty( $image->meta_data['wp_smush'] ) ) {

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$stats = $image->meta_data['wp_smush'];

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} else {

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// Initialize stats array.

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$stats = array(

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'stats' => array_merge(

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$smush->get_size_signature(),

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array(

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'api_version' => - 1,

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'lossy' => - 1,

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'keep_exif' => false,

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)

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'sizes' => array(),

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);

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$stats['bytes'] = $response['data']->bytes_saved;

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$stats['percent'] = $response['data']->compression;

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$stats['size_after'] = $response['data']->after_size;

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$stats['size_before'] = $response['data']->before_size;

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$stats['time'] = $response['data']->time;

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}

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$stats['sizes'][ $size ] = (object) $smush->array_fill_placeholders( $smush->get_size_signature(), (array) $response['data'] );

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if ( isset( $image->metadata ) ) {

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$image->meta_data['wp_smush'] = $stats;

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

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}

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// Allows To get the stats for each image, after the image is smushed.

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do_action( 'wp_smush_nextgen_image_stats', $image_id, $stats );

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}

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}

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}

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return $success;

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}

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}

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