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zerosignalproductions/custom_captions.php

Created January 15, 2014 20:28
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  1. zerosignalproductions created this gist Jan 15, 2014.
    65 changes: 65 additions & 0 deletions custom_captions.php
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,65 @@
    function custom_insert_image($html, $id, $caption, $title, $align, $url, $size, $alt ) {
    //Always return an image with a <figure> tag, regardless of link or caption

    //Grab the image tag
    $image_tag = get_image_tag($id, '', $title, 'None', $size);

    //Let's see if this contains a link
    $linkptrn = "/<a[^>]*>/";
    $found = preg_match($linkptrn, $html, $a_elem);

    // If no link, do nothing
    if($found > 0) {
    $a_elem = $a_elem[0];

    if(strstr($a_elem, "class=\"") !== false){ // If link already has class defined inject it to attribute
    $a_elem = str_replace("class=\"", "class=\"colorbox ", $a_elem);
    } else { // If no class defined, just add class attribute
    $a_elem = str_replace("<a ", "<a class=\"colorbox\" ", $a_elem);
    }
    } else {
    $a_elem = "";
    }

    // Set up the attributes for the caption <figure>
    $attributes = (!empty($id) ? ' id="attachment_' . esc_attr($id) . '"' : '' );
    $attributes .= ' class="thumbnail wp-caption ' . 'align'.esc_attr($align) . '"';

    if ($caption) {
    $output = '[captionC caption="'.$caption.'" align="'.$align.'"]<figure' . $attributes .'>';
    } else {
    $output = '<figure' . $attributes .'>';
    }

    //add the image back in
    $output .= $a_elem;
    $output .= $image_tag;

    if($a_elem != "") {
    $output .= '</a>';
    }

    if ($caption) {
    $output .= '</figure>[/captionC]';
    } else {
    $output .= '</figure>';
    }


    return $output;
    }

    function custom_caption_shortcode($attr, $content = null)
    {
    extract(shortcode_atts(array(
    'id' => '',
    'align' => '',
    'caption' => ''
    ), $attr));

    return str_replace ( '</figure>' , '<figcaption class="caption wp-caption-text">'.$caption.'</figcaption></figure>' , $content );
    }

    add_filter('image_send_to_editor', 'custom_insert_image', 10, 9);
    add_filter('disable_captions', create_function('$a', 'return true;'));
    add_shortcode( 'captionC', 'custom_caption_shortcode');