This is a repurposing of an earlier blog article, First Look at Foo Gallery. I wanted to make it easy for people to find this solution for making FooGallery and Responsive Lightbox by dFactory work together.
Out of the box, the only lightbox plugin These are what make thumbnails enlarge in modal windows FooGallery supports is its own, FooBox. But I’ve become a big fan of Responsive Lightbox by dFactory (RLBD), whose free version offers many useful features (including video support) that you can’t get with the free version of FooBox.
Typically, and by default, Responsive Lightbox by dFactory jumps into action whenever the browser loads an image that contains a data-rel attribute with a value of lightbox. Also, one of the configuration options for RLBD is to automatically insert that attribute-value pair inside img tags. However, FooGallery defeats that process. So we need a workaround.
The Snippet to make Responsive Lightbox by dFactory work with FooGallery
(Hat-tip to one of the FooGallery plugin authors who offered this solution in the plugin’s support forum.)
To make Responsive Lightbox by dFactory work with FooGallery, use the following code to hook into one of FooGallery’s filters. Add the code to a file in your site’s mu-plugins folder.
function add_foogallery_link_rel($attr, $args, $attachment) {
$attr['data-rel'] = 'lightbox';
return $attr;
}
add_filter('foogallery_attachment_html_link_attributes', 'add_foogallery_link_rel', 10, 3);
PS: If you’re wondering why I didn’t tell you to put the code in your theme’s functions.php file — or if you’re not familiar with the mu-plugins folder, feel free to comment below.
Rikke Joergensen says
September 13, 2016 at 5:51 amHi Jeff
Thanks for the code snippet! I really wanna use FooGallery and Responsive Lightbox as well – it seems to be the best of both worlds 😉 I’m kind of new to this, so I am not familiar with the mu-plugins folder, so if you could elaborate on how to use that it would be great!
Jeff Cohan says
September 13, 2016 at 10:31 amThanks for your comment, Rikki.
The “mu-plugins” folder is a special, optional folder in WordPress whose primary purpose (nowadays) is to house plugins (i.e., script files) that must always be enabled, regardless of which theme is activated. Every file in this folder is considered a plugin, and plugins in this folder do not appear on the default Plugins dashboard page and thus cannot be deactivated by users.
The folder must be manually created, as it does not exist by default.
For the use case I described in this post, I want Responsive Lightbox by dFactory to always work with Foo Gallery, regardless of which theme is active. That’s why I didn’t add the code to the theme’s functions.php file.
For more info, check out this codex article.