From bf83d335276228cc607819de79876f8cf925c256 Mon Sep 17 00:00:00 2001
From: Benjamin ter Kuile <bterkuile@gmail.com>
Date: Wed, 26 Dec 2012 20:45:22 +0100
Subject: [PATCH] add engine link option

---
 app/views/cmtool/application/_menu.html.slim |  2 +
 lib/cmtool/menu.rb                           | 41 ++++++++++++++++++++
 spec/cmtool_menu/engine_link_spec.rb         | 24 ++++++++++++
 3 files changed, 67 insertions(+)
 create mode 100644 spec/cmtool_menu/engine_link_spec.rb

diff --git a/app/views/cmtool/application/_menu.html.slim b/app/views/cmtool/application/_menu.html.slim
index 75960cc..3d75e0a 100644
--- a/app/views/cmtool/application/_menu.html.slim
+++ b/app/views/cmtool/application/_menu.html.slim
@@ -23,6 +23,8 @@
                         li[ class=(controller_name == child_item.controller_name ? 'active' : '') ] = link_to child_item.title, child_item.path
               - elsif menu_item.resource_link?
                 li[ class=(menu_item.controller_name == controller_name ? 'active' : '')]= link_to menu_item.title, menu_item.path
+              - elsif menu_item.engine_link?
+                li= link_to menu_item.title, menu_item.path
           .btn-group.pull-right
             a.btn.dropdown-toggle[data-toggle="dropdown" href="#"]
               i.icon-user
diff --git a/lib/cmtool/menu.rb b/lib/cmtool/menu.rb
index a79e962..3f903a2 100644
--- a/lib/cmtool/menu.rb
+++ b/lib/cmtool/menu.rb
@@ -48,6 +48,15 @@ module Cmtool
         return false if args.first.to_s.last == '?'
         @register.send(*args)
       end
+
+      def engine_link?
+        false
+      end
+
+      def resource_link?
+        false
+      end
+
     end
 
     ##
@@ -79,6 +88,33 @@ module Cmtool
       end
     end
 
+    ##
+    # Engine link, links to an engine. Root by default
+    ##
+    class EngineLink < ElementBase
+      attr_reader :engine
+      def initialize(engine, options = {})
+        @engine, @options = engine, options
+      end
+
+      def engine_link?
+        true
+      end
+
+
+      def title
+        options[:title] || engine.name.split('::').first
+      end
+
+      def path
+        case options[:path]
+          when Symbol then engine.routes.url_helpers.send(:"#{options[:path]}_path")
+          when String then options[:path]
+          else engine.routes.url_helpers.root_path
+          end
+      end
+    end
+
     ##
     # Resource link, indicates a link to standard resource. The first argument should
     ##
@@ -143,6 +179,11 @@ module Cmtool
       def resource_link(resource, options = {})
         @items << ResourceLink.new(resource, options)
       end
+
+      def engine_link(engine, options = {})
+        @items << EngineLink.new(resource, options)
+      end
+
       def resource_links
         @items.select{|i| i.is_a?(ResourceLink)}
       end
diff --git a/spec/cmtool_menu/engine_link_spec.rb b/spec/cmtool_menu/engine_link_spec.rb
new file mode 100644
index 0000000..8b4952b
--- /dev/null
+++ b/spec/cmtool_menu/engine_link_spec.rb
@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe Cmtool::Menu::EngineLink do
+  let(:options) { Hash.new }
+  let(:link){ Cmtool::Menu::EngineLink.new(Cmtool::Engine, options)}
+  subject{ link }
+
+  its(:title) { should == 'Cmtool' }
+
+  it 'Should change title when given as option' do
+    options[:title] = 'Engine Title'
+    link.title.should == 'Engine Title'
+  end
+
+  it "should change the path to internal path when given as symbol option" do
+    options[:path] = :faqs
+    link.path.should == '/cmtool/faqs'
+  end
+
+  it "should directly return a path specified as a string in the options" do
+    options[:path] = 'http://www.google.com/'
+    link.path.should == 'http://www.google.com/'
+  end
+end