tracks/app/views/todos/toggle_check.js.erb

<% if !@saved -%>
  TracksPages.page_notify('error', "<%= t('todos.error_toggle_complete') %>", 5);
<% else -%>
  <% if @wants_redirect_after_complete && @todo.completed? -%>
    redirect_after_complete();
  <% else
    animation = []
    unless source_view_is(:search)
      animation << "remove_todo"
      if @todo.completed?
        animation << "add_to_completed_container" unless source_view_is_one_of(:calendar, :deferred)
        animation << "add_new_recurring_todo"
        animation << "activate_pending_todos"
        animation << "remove_source_container"
      else
        animation << "add_todo_to_context" unless source_view_is(:done)
        animation << "block_predecessors"
      end
      animation << "update_empty_container" if source_view_is_one_of(:tag, :todo)
      animation << "regenerate_predecessor_family"
    else
      animation << "replace_todo"
    end -%>
    <%= render_animation(animation) %>
    TracksPages.set_page_badge(<%= @down_count %>);
  <% end -%>
<% end -%>

function redirect_after_complete() {
  var path = "<%= @todo.project_id.nil? ? "/" : project_path(@todo.project) -%>";
  redirect_to(path);
}

function remove_todo(next_steps) {
  <% if (@remaining_in_context == 0) && update_needs_to_hide_context
    # remove context with deleted todo
  -%>
    $('#c<%=@todo.context_id%>').fadeOut(400, function() {
      $('#<%=dom_id(@todo)%>').remove();
      next_steps.go();
    });
    <%= show_empty_message_in_source_container -%>
  <% else
    # remove only the todo
  -%>
    <%= show_empty_message_in_source_container %>
    $('#<%=dom_id(@todo)%>').slideUp(400, function() {
      $('#<%=dom_id(@todo)%>').remove();
      next_steps.go();
  });
  <% end -%>
}

function add_to_completed_container(next_steps) {
  <% unless current_user.prefs.hide_completed_actions? -%>
    $('#<%= item_container_id(@todo) %>').prepend(html_for_todo());
    $("#empty-d").slideUp(100);
    highlight_updated_todo(next_steps);
  <% end -%>
}

function replace_todo(next_steps) {
  $('#<%= dom_id(@todo) %>').html(html_for_todo());
  next_steps.go();
}

function add_todo_to_context(next_steps) {
  $('#<%= item_container_id(@todo) %>').append(html_for_todo());
  <% if should_make_context_visible -%>
    $('#c<%= @todo.context_id %>').fadeIn(500, function() {
      $("#<%=  empty_container_msg_div_id %>").slideUp(100);
      highlight_updated_todo(next_steps);
    });
  <% else -%>
    $("#<%=  empty_container_msg_div_id(@todo) %>").slideUp(100);
    highlight_updated_todo(next_steps);
  <% end -%>
  <% if @completed_count == 0 -%>
    $("#empty-d").slideDown(100);
  <% end -%>
}

function add_new_recurring_todo(next_steps) {
  <%  # show new todo if the completed todo was recurring
    if @todo.from_recurring_todo?
      unless @new_recurring_todo.nil? || (@new_recurring_todo.deferred? && !source_view_is(:deferred)) -%>
      $('#<%= item_container_id(@new_recurring_todo) %>').append(html_for_recurring_todo());
      $('#c<%= @new_recurring_todo.context_id %>').fadeIn(500, function() {
        highlight_updated_recurring_todo(next_steps);
      });
   <% else
        if @todo.recurring_todo.todos.active.count(:all) == 0 && @new_recurring_todo.nil? -%>
          TracksPages.page_notify('notice', "<%=t('todos.recurrence_completed')%>", 6);
   <%   end -%>
        next_steps.go();
   <% end
    else -%>
      next_steps.go();
 <% end -%>
}

function update_empty_container(next_steps) {
  <% if @down_count==0 -%>
    $('#no_todos_in_view').slideDown(400, function(){ next_steps.go(); });
  <% else -%>
    $('#no_todos_in_view').fadeOut(100, function(){ next_steps.go(); });
  <% end -%>
}

<% if @new_recurring_todo # hide js if @new_recurring_todo is not there-%>
function highlight_updated_recurring_todo(next_steps) {
  TodoItems.highlight_todo('#<%= dom_id(@new_recurring_todo)%>');
  next_steps.go();
}
<% end -%>

function highlight_updated_todo(next_steps) {
  TodoItems.highlight_todo('#<%= dom_id(@todo)%>');
  next_steps.go();
}

function activate_pending_todos(next_steps) {
 <% # Activate pending todos that are successors of the completed
    if @saved && @pending_to_activate
      # do not render the js in case of an error or if no todos to activate
      @pending_to_activate.each do |t|
        html = escape_javascript(render(:partial => t, :locals => { :parent_container_type => parent_container_type }))
        # only project and tag view have a deferred/blocked container
        if source_view_is_one_of(:project,:tag) -%>
          $('#<%= dom_id(t) %>').fadeOut(400, function() {
            $('#<%= dom_id(t) %>').remove();
            $('#<%= item_container_id(t) %>').append("<%= html  %>");
            <%= "$('#tickler-empty-nd').show();".html_safe if @remaining_deferred_or_pending_count==0 -%>
          });
 <%     else -%>
          $('#<%= item_container_id(t) %>').append("<%= html%>");
 <%     end -%>
        TodoItems.highlight_todo('#<%= dom_id(t)%>');
 <%   end -%>
 <% end -%>
  next_steps.go();
}

function block_predecessors(next_steps) {
 <% # Block active todos that are successors of the uncompleted
    if @saved && @active_to_block
      # do not render the js in case of an error or if no todos to block
      @active_to_block.each do |t| %>
        $('#<%= dom_id(t) %>').fadeOut(400, function() {
          $('#<%= dom_id(t) %>').remove();
 <%       if source_view_is(:project) or source_view_is(:tag) # Insert it in deferred/pending block if existing -%>
            $('#<%= item_container_id(t) %>').append("<%= escape_javascript(render(:partial => t, :locals => { :parent_container_type => parent_container_type }))%>");
            TodoItems.highlight_todo('#<%= dom_id(t)%>');
 <%       end -%>
        });
 <%   end -%>
 <% end -%>
  next_steps.go();
}

function regenerate_predecessor_family(next_steps) {
<%
if @predecessors
  parents = @predecessors
  until parents.empty?
    parent = parents.pop
    parents += parent.predecessors -%>
    $('#<%= dom_id(parent) %>').html("<%= escape_javascript(render(:partial => parent, :locals => { :parent_container_type => parent_container_type })) %>");
<%end
end
-%>
  next_steps.go();
}

function remove_source_container(next_steps) {
  <% if (@remaining_in_context == 0 && source_view_is_one_of(:todo, :tag))
       # remove context with deleted todo
  -%>
       $('#c<%=@todo.context_id%>').fadeOut(1000, function() {
         next_steps.go();
       });
  <% else %>
     next_steps.go();
  <% end %>
}

function html_for_recurring_todo() {
  <%-
    js = @saved && @new_recurring_todo ? escape_javascript(render(:partial => @new_recurring_todo, :locals => { :parent_container_type => parent_container_type })) : ""
  -%>
  return "<%= js %>";
}

function html_for_todo() {
  <%-
    js = ""
    if @saved && !source_view_is(:done)
      js = escape_javascript(render(
        :partial => @todo,
        :locals => {
          :parent_container_type => parent_container_type,
          :suppress_project => source_view_is(:project),
          :suppress_context => source_view_is(:context)
        }
      ))
    end
  -%>
  return "<%= js %>";
}