Replace Shadowbox with GLightbox, drop jQuery from public site

Vendors GLightbox 3.3.1 (MIT, dependency-free) as static files in
public/javascripts and public/stylesheets, replacing the Shadowbox
2009 vendor tree and its jQuery adapter. Public site no longer loads
jQuery at all.

- app/views/layouts/application.html.erb: swap Shadowbox script/style
  includes and the public_bundle (jQuery) include for GLightbox's
  CSS/JS
- app/views/content/_headline_image.html.erb: headline image is now
  itself a GLightbox trigger; additional images are direct
  a.glightbox links sharing a per-page data-gallery group, replacing
  the hidden shadowbox_images div and its click-forwarding trigger
- public/javascripts/public.js: replace Shadowbox.init/setup and the
  click-forwarding handler with a single GLightbox() init call;
  remove the unused image_handler object
- Remove public/javascripts/shadowbox/ (including vendored Sizzle,
  swfobject, and unused video/Flash players) and
  public/stylesheets/shadowbox.css
- Remove app/assets/javascripts/public_bundle.js (jquery require)

1 files changed, 1 insertions, 38 deletions

diff --git a/public/javascripts/public.js b/public/javascripts/public.js
index 10f04e8..07ee05a 100644
--- a/public/javascripts/public.js
+++ b/public/javascripts/public.js
@@ -1,23 +1,6 @@
-Shadowbox.init({
-  skipSetup : true
-});
-
-
 $(document).ready(function(){
 
-  Shadowbox.setup(".shadowbox_image", {gallery : "fofo"})
-    
-  if ($("#headline_image img").length != 0) {
-    image_handler.initialize();
-  }
-  
-  $("div#headline_image a").bind("click", function() {
-    return false;
-  });
-  
-  $("div#headline_image a img").bind("click", function(){
-    $(".shadowbox_image:first").trigger("click");
-  });
+  GLightbox({ selector: '.glightbox' });
 
   document.getElementById("light-mode").addEventListener("change", () => {
     if (document.getElementById("light-mode").checked)
@@ -26,23 +9,3 @@ $(document).ready(function(){
       localStorage.removeItem("override-prefers-color-scheme");
   });
 });
-
-
-var image_handler = {
-  initialize : function() {
-        
-    path_name     = window.location.pathname;
-    locale_rexexp = /^\/(en|de)\\/;
-    locale_match  = locale_rexexp.exec(path_name);
-    
-    if (locale_match) {
-      locale = locale_match[0];
-    }
-    else {
-      locale = "/de/";
-    }
-    
-    path = path_name.replace(/\/(de|en)*\/*/, "");
-    gallery_path = "";
-  }
-};