add calendar to menu and implement ical

tested ical with outlook 2007

app/views/layouts/standard.html.erb

@@ -54,6 +54,7 @@ window.onload=function(){
   <% if current_user.is_admin? -%>
     <li><%= navigation_link("Admin", users_path, {:accesskey => "a", :title => "Add or delete users"} ) %></li>
   <% end -%>
+  <li><%= navigation_link(image_tag("x-office-calendar.png", :size => "16X16", :border => 0), calendar_path, :title => "Calendar of due actions" ) %></li>
   <li><%= navigation_link(image_tag("recurring_menu16x16.png", :size => "16X16", :border => 0), {:controller => "recurring_todos", :action => "index"}, :title => "Manage recurring actions" ) %></li>
   <li><%= navigation_link(image_tag("feed-icon.png", :size => "16X16", :border => 0), {:controller => "feedlist", :action => "index"}, :title => "See a list of available feeds" ) %></li>
   <li><%= navigation_link(image_tag("menustar.gif", :size => "16X16", :border => 0), tag_path("starred"), :title => "See your starred actions" ) %></li>

app/views/todos/calendar.html.erb

@@ -2,33 +2,50 @@
   
   <div class="container">
     <h2>Due today</h2>
-    <%= render :partial => "todos/todo", :collection => @due_today %>
+    <div id="due_today">
+      <%= render :partial => "todos/todo", :collection => @due_today %>
+    </div>
   </div>
   
   <div class="container">
-    <h2>Due this week</h2>
-    <%= render :partial => "todos/todo", :collection => @due_this_week %>
+    <h2>Due in rest of this week</h2>
+    <div id="due_this_week">
+      <%= render :partial => "todos/todo", :collection => @due_this_week %>
+    </div>
   </div>
   
   <div class="container">
     <h2>Due next week</h2>
-    <%= render :partial => "todos/todo", :collection => @due_next_week %>
+    <div id="due_next_week">
+      <%= render :partial => "todos/todo", :collection => @due_next_week %>
+    </div>
   </div>
   
   <div class="container">
-    <h2>Due rest of this month</h2>
-    <%= render :partial => "todos/todo", :collection => @due_this_month %>
+    <h2>Due in rest of this month</h2>
+    <div id="due_this_month">
+      <%= render :partial => "todos/todo", :collection => @due_this_month %>
+    </div>
   </div>
   
   <div class="container">
     <h2>Due next month and later</h2>
-    <%= render :partial => "todos/todo", :collection => @due_after_this_month %>
+    <div id="due_after_this_month">
+      <%= render :partial => "todos/todo", :collection => @due_after_this_month %>
+    </div>
   </div>
   
 </div><!-- End of display_box -->
-<div id="input_box">
-  <input id="hide_tickler" type="checkbox" tabindex="5" name="hide_tickler" checked="true"/>
+<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><span class="feed">iCal</span> - Get this calendar in iCal-format to add to your own calendar</p>
-</div>
+  <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>
+
+<%  
+apply_behavior 'input.hide_tickler:click', :prevent_default => true do |page|
+  page << "alert('hiding action in tickler from calendar is not yet implemented');"
+end
+%>

app/views/todos/calendar.ics.erb

@@ -0,0 +1,25 @@
+BEGIN:VCALENDAR
+PRODID:-//TRACKS//<%= TRACKS_VERSION %>//EN
+VERSION:2.0
+CALSCALE:GREGORIAN
+METHOD:PUBLISH
+X-WR-CALNAME:Tracks
+<% for todo in @due_all -%>
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:<%= todo.due.strftime("%Y%m%d") %>
+DTEND;VALUE=DATE:<%= (todo.due+1.day).strftime("%Y%m%d") %>
+DTSTAMP:<%= todo.due.strftime("%Y%m%dT%H%M%SZ") %>
+UID:<%= todo_url(todo) %>
+CLASS:PUBLIC
+CATEGORIES:Tracks
+CREATED:<%= todo.created_at.strftime("%Y%m%dT%H%M%SZ") %>
+DESCRIPTION:<%= format_ical_notes(todo.notes) %>
+LAST-MODIFIED:<%= todo.due.strftime("%Y%m%dT%H%M%SZ") %>
+LOCATION:
+SEQUENCE:0
+STATUS:CONFIRMED
+SUMMARY:<%= todo.description %>
+TRANSP:TRANSPARENT
+END:VEVENT
+<% end -%>
+END:VCALENDAR

app/views/todos/update.js.rjs

@@ -101,6 +101,12 @@ if @saved
   elsif source_view_is :stats
     page.replace dom_id(@todo), :partial => 'todos/todo', :locals => { :parent_container_type => parent_container_type }
     page.visual_effect :highlight, dom_id(@todo), :duration => 3    
+  elsif source_view_is :calendar
+    if @due_date_changed
+      page[@todo].remove
+      page.insert_html :bottom, @new_due_id, :partial => 'todos/todo'
+      page.visual_effect :highlight, dom_id(@todo), :duration => 3
+    end
   else
     logger.error "unexpected source_view '#{params[:_source_view]}'"
   end