Here’s a cool little trick for adding widget areas that are unique to posts, but without cluttering up Appearance->Widgets in the admin. Instead, we utilize the Customizer, which is perfect for this sort of thing. First thing, we need to hook a function into init where we register our widget area.
I wrote this bit of code for a knock-off Google Image UI I’ve recently been working on. Like Google Image search, my UI opens the image details below the thumbnail on click. Within those image details are forward and back arrows to navigate previous and next images. This script adjusts the vertical scroll as I click ... Read More