[wp-trac] [WordPress Trac] #23634: New hook for adding content after each comment

[WordPress Trac]

#23634: New hook for adding content after each comment
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 Reporter:  lancewillett  |       Owner:  chriscct7
     Type:  enhancement   |      Status:  assigned
 Priority:  normal        |   Milestone:  Future Release
Component:  Comments      |     Version:
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:
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Comment (by keesiemeijer):

 As a proof of concept patch [attachment:23634.4.patch] doesn't add the
 hook inside the `WP_WALKER` class. It does add a method `start_el_after`
 that the child classes can use to add content after the element. Because
 this method is called right after the `start_el` method you can insert
 content before the end tag (and child elements if they exist).



 {{{
 <ol class="comment-list">
         <li id="comment-1" class="comment">
                         <article id="div-comment-31" class="comment-body">
 ... </article>

                         <!-- Comment after is inserted here. -->

                         <ol class="children"> ... </ol><!-- #child
 elements-## -->
         </li><!-- #comment-## -->
 </ol>
 }}}



 I've added the `start_el_after` method to the `Walker_Comment` class with
 a filter to add content. Now you can use the filter like this:


 {{{#!php
 add_filter( 'after_comment', 'add_content_after_comment', 10, 3 );

 function add_content_after_comment( $comment, $depth, $args ) {
         return $comment . '<p>Inserted content after comment.</p>';
 }
 }}}

 An alternative is to ditch the extra method (in `WP_WALKER`) and add the
 filter directly in the `start_el` method of the `Walker_Comment` class.

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Ticket URL: <https://core.trac.wordpress.org/ticket/23634#comment:19>
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