Added a custom tab in edit popup [#76 state:resolved]. To use this ta…

…b, you must create

a template with '*edit' mode. The content of this template will be rendered inside the tab.
You need to have JS turned on for this to work. This solution has *no performance impact* on
popup load time due to the fact that tab rendering is only executed later.

app/controllers/versions_controller.rb

@@ -72,6 +72,12 @@ def edit
     end
   end
 
+  def custom_tab
+    render :file => template_url(:mode=>'*edit', :format=>'html'), :layout=>false
+  rescue ActiveRecord::RecordNotFound
+    render :inline => "no custom form for this class (#{@node.klass})"
+  end
+
   # TODO: test/improve or remove (experiments)
   def diff
     # drive view

app/helpers/versions_helper.rb

@@ -12,6 +12,7 @@ def form_tabs
       break if k == 'node'
     end
     tabs << klass if klass
+    tabs << 'custom'
     tabs << 'help'
   end
 end

app/models/template.rb

@@ -57,7 +57,7 @@ def document_before_validation
         content.format = 'html' if content.format.blank?
         self[:name] = name_from_content(:format => content.format, :mode => content.mode, :klass => content.klass)
 
-        if version.text.blank? && content.format == 'html'
+        if version.text.blank? && content.format == 'html' && content.mode != '*edit'
           # set a default text
 
           if content.klass == 'Node'

app/views/templates/edit_tabs/_custom.rhtml

@@ -0,0 +1,6 @@
+<%= javascript_start %>
+var custom_loaded = false;
+function load_custom_tab() {
+  new Ajax.Updater('custom_tab', '/nodes/<%= @node.zip %>/versions/0/custom_tab', {asynchronous:true, evalScripts:true, method:'get'});
+}
+<%= javascript_end %>

config/routes.rb

@@ -23,6 +23,7 @@
     nodes.resources :versions, 
                     :name_prefix => nil,
                     :member => { :edit    => :get,
+                                 :custom_tab => :get,
                                  :propose => :put,
                                  :publish => :put,
                                  :unpublish => :put,

lib/gettext_strings.rb

@@ -18,6 +18,7 @@ def CustomGettext
     N_('file_tab')              # document form tab name
     N_('template_tab')          # document form tab name
     N_('text_doc_tab')          # document form tab name
+    N_('custom_tab')            # custom form tab name
 
     N_('btn_add_doc') # used by zafu layout template
     N_('btn_add') # used by zafu layout template