Various improvements to context drag&drop

-Don't botch other fields on context change
-Better status message
-Flash context title on drop
-Drop target close to context name
-Bolder drop target border

Closes #1033

app/controllers/todos_controller.rb

@@ -230,6 +230,23 @@ class TodosController < ApplicationController
     end
   end
 
+  def change_context
+    @todo = Todo.find(params[:todo][:id])
+    @original_item_context_id = @todo.context_id
+    @context = Context.find(params[:todo][:context_id])
+    @todo.context = @context
+    @saved = @todo.save
+
+    @context_changed = true
+    @message = "Context changed to #{@context.name}"
+    determine_remaining_in_context_count(@original_item_context_id)
+
+    respond_to do |format|
+      format.js {render :action => :update }
+      format.xml { render :xml => @todo.to_xml( :except => :user_id ) }
+    end
+  end
+
   def update
     @source_view = params['_source_view'] || 'todo'
     init_data_for_sidebar unless mobile?

app/views/contexts/_context.rhtml

@@ -10,11 +10,11 @@
       <%= link_to_context( context )  %>
     <% end %>
   </h2>
+  <div id="c_<%=context.id%>_target" class="context_target drop_target"></div>
   <div id="c<%= context.id %>items" class="items toggle_target">
     <div id="c<%= context.id %>empty-nd" style="display:<%= @not_done.empty? ? 'block' : 'none'%>;">
       <div class="message"><p>Currently there are no incomplete actions in this context</p></div>
     </div>
     <%= render :partial => "todos/todo", :collection => @not_done, :locals => { :parent_container_type => "context" } %>
   </div><!-- [end:items] -->
-  <div id="c_<%=context.id%>_target" class="context_target drop_target"></div>
 </div><!-- [end:c<%= context.id %>] -->

app/views/todos/update.js.rjs

@@ -4,6 +4,7 @@ if @saved
   status_message += ' to tickler' if @todo.deferred?
   status_message = 'Added new project / ' + status_message if @new_project_created
   status_message = 'Added new context / ' + status_message if @new_context_created
+  status_message = @message || status_message
   page.notify :notice, status_message, 5.0
   
   if source_view_is_one_of(:todo, :context, :tag)
@@ -46,12 +47,18 @@ if @saved
       page.replace_html("badge_count", @down_count) if source_view_is :todo
       
       # show todo in context
-      page.delay(0.5) do
+      page.delay(0.3) do
         page.call "todoItems.ensureContainerHeight", "c#{@original_item_context_id}items"
         if source_view_is_one_of(:todo, :tag) && @todo.active?
           page.call "todoItems.ensureContainerHeight", "c#{@todo.context_id}items"
           page.visual_effect :highlight, dom_id(@todo), :duration => 3
         end
+        if @context_changed
+          source_view do |from|
+            from.todo {page << "$('#c#{@todo.context_id} h2').effect('highlight', {}, 3000)" }
+            from.tag {page << "$('#c#{@todo.context_id} h2').effect('highlight')" }
+          end
+        end
       end
     else
       if @original_item_was_deferred && source_view_is(:tag)

public/javascripts/application.js

@@ -259,9 +259,8 @@ function enable_rich_interaction(){
     ui.draggable.remove();
     target.block({message: null});
     setTimeout(function() {target.show()}, 0);
-    $.post(relative_to_root('todos/update'),
-        {id: dragged_todo,
-         "todo[id]": dragged_todo,
+    $.post(relative_to_root('todos/change_context'),
+        {"todo[id]": dragged_todo,
          "todo[context_id]": context_id},
         function(){target.unblock(); target.hide();}, 'script');
   }

public/stylesheets/standard.css

@@ -951,7 +951,7 @@ div.message {
 .context_target {
   height: 15px;
   margin: 4px;
-  border: thick dotted #CCC;
+  border: 4px dotted #999;
 }
 
 .context_target.hover {