add message when there are no actions in a container and handle state changes

app/views/todos/calendar.html.erb

@@ -2,6 +2,9 @@
   
   <div class="container">
     <h2>Due today</h2>
+    <div id="empty_due_today" <%= "style=\"display:none\"" unless @due_today.empty? %>>
+      No actions due today
+    </div>
     <div id="due_today">
       <%= render :partial => "todos/todo", :collection => @due_today %>
     </div>
@@ -9,6 +12,9 @@
   
   <div class="container">
     <h2>Due in rest of this week</h2>
+    <div id="empty_due_this_week" <%= "style=\"display:none\"" unless @due_this_week.empty? %>>
+      No actions due in rest of this week
+    </div>
     <div id="due_this_week">
       <%= render :partial => "todos/todo", :collection => @due_this_week %>
     </div>
@@ -16,6 +22,9 @@
   
   <div class="container">
     <h2>Due next week</h2>
+    <div id="empty_due_next_week" <%= "style=\"display:none\"" unless @due_next_week.empty? %>>
+      No actions due in next week
+    </div>
     <div id="due_next_week">
       <%= render :partial => "todos/todo", :collection => @due_next_week %>
     </div>
@@ -23,6 +32,9 @@
   
   <div class="container">
     <h2>Due in rest of this month</h2>
+    <div id="empty_due_this_month" <%= "style=\"display:none\"" unless @due_this_month.empty? %>>
+      No actions due in rest of this month
+    </div>
     <div id="due_this_month">
       <%= render :partial => "todos/todo", :collection => @due_this_month %>
     </div>
@@ -30,6 +42,9 @@
   
   <div class="container">
     <h2>Due next month and later</h2>
+    <div id="empty_due_after_this_month" <%= "style=\"display:none\"" unless @due_after_this_month.empty? %>>
+      No actions due after this month
+    </div>
     <div id="due_after_this_month">
       <%= render :partial => "todos/todo", :collection => @due_after_this_month %>
     </div>
@@ -37,9 +52,11 @@
   
 </div><!-- End of display_box -->
 <div class="input_box" id="input_box">
+  <!--
   <input class="hide_tickler" id="hide_tickler" type="checkbox" tabindex="5" name="hide_tickler" checked="true"/>
   <label for="hide_tickler"> Show actions in tickler</label>
   <br/><br/>
+    -->
   <p><%= link_to('<span class="feed">iCal</span>', {:format => 'ics', :token => current_user.token}, :title => "iCal feed" ) %>
   - Get this calendar in iCal format</p>
 </div>

app/views/todos/destroy.js.rjs

@@ -1,5 +1,6 @@
 if @saved
   page[@todo].remove
+  page.show "empty_"+@original_item_due_id if @old_due_empty
   page['badge_count'].replace_html @down_count
   
   # remove context if empty

app/views/todos/toggle_check.js.rjs

@@ -1,5 +1,6 @@
 if @saved  
   page[@todo].remove
+  page.show "empty_"+@original_item_due_id if @old_due_empty
   if @todo.completed?
 
     # completed todos move from their context to the completed container
@@ -26,7 +27,7 @@ if @saved
         page.notify :notice, "There is no next action after the recurring action you just finished. The recurrence is completed", 6.0 if @new_recurring_todo.nil?
       end
     end
-    
+        
   else
     # todo is activated from completed container
     page.call "todoItems.ensureVisibleWithEffectAppear", item_container_id(@todo)

app/views/todos/update.js.rjs

@@ -104,8 +104,19 @@ if @saved
   elsif source_view_is :calendar
     if @due_date_changed
       page[@todo].remove
+      page.show "empty_"+@original_item_due_id if @old_due_empty
+      page.hide "empty_"+@new_due_id
       page.insert_html :bottom, @new_due_id, :partial => 'todos/todo'
       page.visual_effect :highlight, dom_id(@todo), :duration => 3
+    else
+      if @todo.due.nil?
+        # due date removed
+        page[@todo].remove
+        page.show "empty_"+@original_item_due_id if @old_due_empty
+      else
+        page.replace dom_id(@todo), :partial => 'todos/todo', :locals => { :parent_container_type => parent_container_type }
+        page.visual_effect :highlight, dom_id(@todo), :duration => 3
+      end
     end
   else
     logger.error "unexpected source_view '#{params[:_source_view]}'"