Make the clipboard dependency an NPM dependency

The rails version is out of date with the javascript version and hasn't been updated in 6 years

app/assets/javascripts/spotlight/admin/index.js

@@ -5,7 +5,7 @@
 //= require parameterize
 //= require bootstrap-tagsinput
 //= require jquery.serializejson
-//= require clipboard
+//= require clipboard/dist/clipboard
 //= require leaflet
 //= require leaflet-iiif
 //= require Leaflet.Editable

blacklight-spotlight.gemspec

@@ -29,7 +29,6 @@ these collections.)
   s.add_dependency 'breadcrumbs_on_rails', '>= 3.0', '< 5'
   s.add_dependency 'cancancan'
   s.add_dependency 'carrierwave', '~> 2.2'
-  s.add_dependency 'clipboard-rails', '~> 1.5'
   s.add_dependency 'devise', '~> 4.1'
   s.add_dependency 'devise_invitable'
   s.add_dependency 'faraday'

lib/generators/spotlight/install_generator.rb

@@ -18,6 +18,9 @@ def add_js
       append_to_file 'app/assets/javascripts/application.js', "\n//= require_tree .\n"
 
       run 'bundle exec rails webpacker:install'
+
+      say 'Install Clipboard'
+      run 'yarn add clipboard@1.7.1'
     end
 
     def add_manifest

lib/spotlight/engine.rb

@@ -9,7 +9,6 @@
 require 'activejob-status'
 require 'autoprefixer-rails'
 require 'blacklight'
-require 'clipboard/rails'
 require 'faraday'
 require 'faraday/follow_redirects'
 require 'friendly_id'
@@ -67,6 +66,8 @@ class Engine < ::Rails::Engine
     end
 
     initializer 'spotlight.assets.precompile' do |app|
+      config.assets.paths << Rails.root.join('node_modules')
+
       app.config.assets.precompile += %w[spotlight/default_thumbnail.jpg spotlight/default_browse_thumbnail.jpg]
 
       Sprockets::ES6.configuration = { 'modules' => 'umd', 'moduleIds' => true }

package.json

@@ -25,5 +25,6 @@
     "not IE 11"
   ],
   "dependencies": {
+    "clipboard": "1.7.1"
   }
 }