How to add a custom field to the comments "Quick Edit" screen?

Question

How do you add a custom field to the comments "Quick Edit" screen?

The code below only shows on the posts quick edit screen:

function tips_quick_edit_fields( $column, $post_type ) {
?>
    <fieldset>
    <div class="inline-edit-col">
        <label>
            <input type="checkbox" name="featured"> Is this a tip?
        </label>
    </div>
    </fieldset>
<?php
}
add_action( 'quick_edit_custom_box',  'tips_quick_edit_fields', 10, 2 );

I can't find information anywhere on how to make it appear on the comments "Quick Edit" screen though.

Is it even possible?

Answer 1

Here's the function responsible for rendering the comments quick edit form: wp_comment_reply.

Looking at its code, it seems you can short-circuit it using the wp_comment_reply filter. That only lets you start from scratch though (e.g. you can't add to the existing form).

The only way around this that I can think of is some (unholy) code like:

function your_custom_quick_edit_form($content) {
    remove_filter('wp_comment_reply', 'your_custom_quick_edit_form', 10, 2);

    ob_start();
    wp_comment_reply();
    $content = ob_get_clean();

    // Do horrible stuff here with str_replace and the likes
    $content = str_replace('<fieldset class="comment-reply">', '<fieldset class="comment-reply">I shouldn\'t be here', $content);

    return $content;
}

add_filter('wp_comment_reply', 'your_custom_quick_edit_form', 10);

But really, you probably shouldn't do that. It seems this area of the dashboard isn't really meant for customization.