add Basecamp Trix editor

.gitignore

@@ -13,3 +13,4 @@ spec/dummy
 .ruby-gemset
 gemfiles/*.gemfile.lock
 *.gem
+/.idea

.rbenv-gemsets

@@ -0,0 +1,2 @@
+bkz
+spree_editor

app/models/spree/editor_setting.rb

@@ -5,7 +5,7 @@ class EditorSetting < Preferences::Configuration
     preference :ids,            :string,  default: 'product_description page_body'
 
     def self.editors
-      %w(TinyMCE CKEditor)
+      %w(TinyMCE CKEditor Trix)
     end
   end
 end

app/views/shared/editor_engines/_trix.html.erb

@@ -0,0 +1,14 @@
+<%= javascript_include_tag 'trix/trix' %>
+<%= stylesheet_link_tag 'trix/trix' %>
+
+<script>
+  $(document).ready(function () {
+    let editors = $('<%= raw ids.each.map{|id| "textarea##{id}" }.join(", ") %>');
+    for (const editor of editors) {
+      let trixEditor = document.createElement('trix-editor');
+      trixEditor.setAttribute('input', editor.id);
+      $(editor).hide();
+      $(trixEditor).insertAfter(editor);
+    }
+  });
+</script>

config/initializers/assets.rb

@@ -1 +1,2 @@
 Rails.application.config.assets.precompile += %w( tinymce-jquery.js )
+Rails.application.config.assets.precompile += %w( trix/* )

spree_editor.gemspec

@@ -40,9 +40,9 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'simplecov'
   s.add_development_dependency 'sqlite3'
   s.add_development_dependency 'rspec-rails', '~> 4.0.0.beta2'
+  s.add_development_dependency 'sass-rails'
   s.add_development_dependency 'rubocop'
   s.add_development_dependency 'pg'
-  s.add_development_dependency 'mysql2'
   s.add_development_dependency 'coffee-rails'
   s.add_development_dependency 'appraisal'
   s.add_development_dependency 'puma'