Update code block article api

Author: rossta

app/views/components/code_block/app_file.rb

@@ -18,7 +18,7 @@ def view_template
         }
       end
 
-      code_block.source_code do
+      code_block.body do
         source
       end
     end

app/views/components/code_block/article.rb

@@ -10,11 +10,7 @@ def initialize(source = "", language: nil, filename: nil, run: false, show_heade
     @show_header = show_header
   end
 
-  def view_template(&block)
-    # Capture the block content as the source if no source was provided
-    # The capture call appears to add a leading space, so we strip it.
-    @source ||= capture(&block)&.strip if block.present?
-
+  def view_template
     div(
       class: "code-wrapper highlight language-#{language}",
       data: code_example_data.keep_if { enable_run }.merge(data)
@@ -54,7 +50,7 @@ def title(&block)
   end
 
   # Overwite the source code with a block
-  def source_code(&)
+  def body(&)
     @source = capture(&)
   end
 

app/views/settings/syntax_highlights/form.rb

@@ -37,9 +37,35 @@ def view_template
 
       h2 { %(Preview) }
       h3 { %(Ruby) }
-      render CodeBlock::AppFile.new("app/controllers/application_controller.rb", language: "ruby")
+
+      render CodeBlock::Article.new(language: "ruby") do |code|
+        code.body do
+          <<~RUBY.html_safe
+            class Family < Group
+              include Enumerable
+
+              def initialize(*members)
+                @members = members
+              end
+
+              def each(&)
+                @members.each(&)
+              end
+            end
+          RUBY
+        end
+      end
       h3 { %(CSS) }
-      render CodeBlock::AppFile.new("app/javascript/css/components/page-header.css", language: "css")
+      render CodeBlock::Article.new(language: "css") do |code|
+        code.body do
+          <<~CSS
+            body {
+              font-size: 12pt;
+              background: #fff url(temp.png) top left no-repeat;
+            }
+          CSS
+        end
+      end
       h3 { %(HTML with ERB) }
       render CodeBlock::AppFile.new("app/views/layouts/application.html.erb", language: "erb")
     end