Jetpack photon compatibility

Hi, I tested this plugin on a dev site with photon enabled and it doesnt work by default because jetpack modifies the output of wp_get_attachment_image_src().

So I modified that part of your plugin to make it work with jetpack and I share it here in case you want to add it to your plugin:

File: wp-tevko-responsive-images.php – function tevkori_get_src_sizes();

function tevkori_get_src_sizes( $id, $size ) {
	$arr = array();

	// See which image is being returned and bail if none is found
	if ( ! $image = wp_get_attachment_image_src( $id, $size ) ) {
		return false;
	};

	// break image data into url, width, and height
	list( $img_url, $img_width, $img_height ) = $image;

	// Jetpack compatibility
	if( preg_match( '/[\d]{1}\.wp\.com/i', $img_url) && strpos( $img_url, 'resize=') ){

		$parsed_url = @parse_url( $img_url );

		if ( ! $parsed_url )
			return false;

		// Parse URL and ensure needed keys exist, since the array returned by <code>parse_url</code> only includes the URL components it finds.
		$url_info = wp_parse_args( $parsed_url, array(
			'query' => null,
		) );
		$vg_size = explode( '%2C', str_replace('resize=', '', $url_info['query']));
		$img_width = $vg_size[0];
		$img_height = $vg_size[1];
	}

	// image meta
	$image_meta = wp_get_attachment_metadata( $id );

	// default sizes
	$default_sizes = $image_meta['sizes'];

	// add full size to the default_sizes array
	$default_sizes['full'] = array(
		'width' 	=> $image_meta['width'],
		'height'	=> $image_meta['height'],
		'file'		=> $image_meta['file']
	);

	// set ratio (rounded to hundredths)
	$ratio = round( ($img_width / $img_height), 2);

	// Remove any hard-crops
	// Jose: Why are we removing hard-crops?
	/*foreach ( $default_sizes as $key => $image_size ) {
		$crop_ratio = round( ($image_size['width'] / $image_size['height']), 2 );

		if( $crop_ratio !== $ratio ) {
			unset( $default_sizes[$key] );
		}
	}*/

	// No sizes? Checkout early
	if( ! $default_sizes )
	return false;

	// Loop through each size we know should exist
	foreach( $default_sizes as $key => $size ) {

		// Reference the size directly by it's pixel dimension
		$image_src = wp_get_attachment_image_src( $id, $key );
		$arr[] = $image_src[0] . ' ' . $size['width'] .'w';
	}

	return 'srcset="' . implode( ', ', $arr ) . '"';
}

At the moment I¨m using my version of your plugin. I would appreciate if you let me know if you decide to add this to your plugin so I can continue using yours.

I commented out the part of the code where you remove the hard-crops just as a personal preference.

https://www.ads-software.com/plugins/ricg-responsive-images/