fancybox/fancybox.php

   1 <?php
   2 /**
   3  * Name: Fancybox
   4  * Description: Open media attachments of posts into a fancybox overlay.
   5  * Version: 1.05
   6  * Author: Grischa Brockhaus <grischa@brockha.us>
   7  */
   8
   9 use Friendica\App;
  10 use Friendica\Core\Hook;
  11 use Friendica\DI;
  12
  13 function fancybox_install()
  14 {
  15         Hook::register('head', __FILE__, 'fancybox_head');
  16         Hook::register('footer', __FILE__, 'fancybox_footer');
  17         Hook::register('prepare_body_final', __FILE__, 'fancybox_render');
  18 }
  19
  20 function fancybox_head(string &$b)
  21 {
  22         DI::page()->registerStylesheet(__DIR__ . '/asset/fancybox/jquery.fancybox.min.css');
  23 }
  24
  25 function fancybox_footer(string &$str)
  26 {
  27         DI::page()->registerFooterScript(__DIR__ . '/asset/fancybox/jquery.fancybox.min.js');
  28         DI::page()->registerFooterScript(__DIR__ . '/asset/fancybox/fancybox.config.js');
  29 }
  30
  31 function fancybox_render(array &$b){
  32         $gallery = 'gallery-' . $b['item']['uri-id'] ?? random_int(1000000, 10000000);
  33
  34         // performWithEscapedBlocks escapes block defined with 2nd par pattern that won't be processed.
  35         // We don't want to touch images in class="type-link":
  36         $b['html'] = \Friendica\Util\Strings::performWithEscapedBlocks(
  37                 $b['html'],
  38                 '#<div class="type-link">.*?</div>#s',
  39                 function ($text) use ($gallery) {
  40                         // This processes images inlined in posts
  41                         // Frio / Vier hooks für lightbox are un-hooked in fancybox-config.js. So this works for them, too!
  42                         //if (!in_array(DI::app()->getCurrentTheme(),['vier','frio']))
  43                         $text = preg_replace(
  44                                 '#<a[^>]*href="([^"]*)"[^>]*>(<img[^>]*src="[^"]*"[^>]*>)</a>#',
  45                                 '<a data-fancybox="' . $gallery . '" href="$1">$2</a>',
  46                                 $text);
  47
  48                         // Local content images attached:
  49                         $text = preg_replace_callback(
  50                                 '#<div class="(body-attach|imagegrid-column)">.*?</div>#s',
  51                                 function ($matches) use ($gallery) {
  52                                         return str_replace('<a href', '<a data-fancybox="' . $gallery . '" href', $matches[0]);
  53                                 },
  54                                 $text
  55                         );
  56
  57                         return $text;
  58                 }
  59         );
  60 }