Apply filter to all genesis featured image calls?

[alex2k5]

Looking to apply a filter to the output of genesis_get_image or genesis_do_post_image, anywhere it's used.

Is there a snippet I can place in functions.php which will essentially let me do:

apply_filters( 'myfilter', 'genesis_do_post_image' );

globally in the theme?

[Victor Font]

Filters don't work that way. apply_filters is only used in the code where it takes effect. To modify a filter, you have to use add_filter.

The genesis_do_post_image function does not have any filters you can hook into. The function does 2 things only. First it retrieves the featured image. If a featured image exists, it calls genesis_markup to create the HTML markup.

The genesis_markup function creates several context filters on-the-fly that you can hook into to change the output. The primary filter for changing markup is genesis_markup_entry-image-link_output.

You would add this to functions.php:

add_filter('genesis_markup_entry-image-link_output','my_featured_image', 10, 2);
function my_featured_image( $tag, $args ) {
    //put your custom code here
    return $tag;
}

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Regards,

Victor
https://victorfont.com/
Call us toll free: 844-VIC-FONT (842-3668)
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[alex2k5]

Thanks much. I will give it a shot.

[alex2k5]

OK, so I couldn't do it that way, wasn't working, but your feedback sent me on a path that did work.

Basically looking to apply lazy load tech to the images Genesis spits out. They were not being caught by BJ Lazy Load and others because they are not in the_content, which is where they search for <img code to apply lazy load specs.

What I did below is basically remove genesis_do_post_image, then re-add a modified version of it. The modified one is just the original, with the BJ Lazy Load filter applied before exporting genesis_markup. Working on my end.

Would be nice if StudioPress could make this default, easier.

remove_action( 'genesis_entry_content', 'genesis_do_post_image', 8 );
add_action( 'genesis_entry_content', 'alex_genesis_do_post_image', 8 );

function alex_genesis_do_post_image() {

	if ( ! is_singular() && genesis_get_option( 'content_archive_thumbnail' ) ) {
	    $img = genesis_get_image( array(
	      'format'  => 'html',
	      'size'    => genesis_get_option( 'image_size' ),
	      'context' => 'archive',
	      'attr'    => genesis_parse_attr( 'entry-image', array() ),
	    ) );

	    $img = apply_filters( 'bj_lazy_load_html', $img );
	
	    if ( ! empty( $img ) ) {
	      genesis_markup( array(
	        'open'    => '<a %s>',
	        'close'   => '</a>',
	        'content' => wp_make_content_images_responsive( $img ),
	        'context' => 'entry-image-link',
	      ) );
	    }
	  }
}

[Brad Dalton]

Another option is to use one of the filters in genesis > lib > functions > image.php like

genesis_pre_get_image
genesis_get_image_default_args
genesis_get_image

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