Added support of permanent and on demand widgets.

app/assets/javascripts/app/controllers/_application_controller.js.coffee

@@ -669,3 +669,26 @@ class App.UpdateTastbar extends App.Controller
 
     # update taskbar with new meta data
     App.Event.trigger 'task:render'
+
+class App.ControllerWidgetPermanent extends App.Controller
+  constructor: (params) ->
+    if params.el
+      params.el.append('<div id="' + params.key + '"></div>')
+      params.el = ("##{params.key}")
+
+    super(params)
+
+class App.ControllerWidgetOnDemand extends App.Controller
+  constructor: (params) ->
+    params.el = $("##{params.key}")
+    super
+
+  element: =>
+    $("##{@key}")
+
+  html: (raw) =>
+
+    # check if parent exists
+    if !$("##{@key}").get(0)
+      $('#app').before("<div id=\"#{@key}\" class=\"#{@className}\"></div>")
+    $("##{@key}").html raw

app/assets/javascripts/app/controllers/navigation.js.coffee

@@ -1,4 +1,4 @@
-class App.Navigation extends App.Controller
+class App.Navigation extends App.ControllerWidgetPermanent
   className: 'navigation vertical'
 
   constructor: ->

app/assets/javascripts/app/controllers/widget/chat.js.coffee

@@ -1,4 +1,4 @@
-class Widget extends App.Controller
+class Widget extends App.ControllerWidgetPermanent
   events:
     'submit   #chat_form':          'submitMessage'
     'focusin  [name=chat_message]': 'focusIn'

app/assets/javascripts/app/controllers/widget/notify.js.coffee

@@ -1,32 +1,30 @@
-class App.Notify extends Spine.Controller
+class App.Notify extends App.ControllerWidgetPermanent
   events:
     'click .alert': 'destroy'
 
   constructor: ->
     super
 
-    App.Event.bind 'notify', (data) =>
+    @bind 'notify', (data) =>
       @render(data)
 
-    App.Event.bind 'notify:removeall', =>
+    @bind 'notify:removeall', =>
       @log 'notify:removeall', @
       @destroyAll()
 
-    App.Event.bind 'notifyDesktop', (data) =>
+    @bind 'notifyDesktop', (data) =>
       if !data['icon']
         data['icon'] = 'unknown'
       notify.createNotification( data.msg, data )
 
     # request desktop notification after login
-    App.Event.bind 'auth', (data) ->
+    @bind 'auth', (data) ->
       if !_.isEmpty(data)
         notify.requestPermission()
 
     notify.config( pageVisibility: false )
 
   render: (data) ->
-#    notify = App.view('notify')(data: data)
-#    @append( notify )
 
     # map noty naming
     if data['type'] is 'info'
@@ -62,10 +60,8 @@ class App.Notify extends Spine.Controller
 
   destroy: (e) ->
     e.preventDefault()
-#    $(e.target).parents('.alert').remove();
 
   destroyAll: ->
     $.noty.closeAll()
-#    $(@el).find('.alert').remove();
 
 App.Config.set( 'notify', App.Notify, 'Widgets' )

app/assets/javascripts/app/controllers/widget/switch_back_to_user.js.coffee

@@ -1,8 +1,5 @@
-class Widget extends App.Controller
+class Widget extends App.ControllerWidgetOnDemand
   className: 'switchBackToUser'
-  events:
-    'click    .js-close':    'switchBack'
-
   constructor: ->
     super
 
@@ -10,6 +7,10 @@ class Widget extends App.Controller
     @bind 'app:ready', =>
       @render()
 
+    # e. g. if language has chnaged
+    @bind 'ui:rerender', =>
+      @render()
+
     # remove widget
     @bind 'auth:logout', =>
       App.Config.set('switch_back_to_possible', false)
@@ -19,13 +20,15 @@ class Widget extends App.Controller
 
     # if no switch to user is active
     if !App.Config.get('switch_back_to_possible') || !App.Session.get()
-      @el.html('')
-      $('#app').removeClass('switchBackToUserSpace')
+      @element().remove()
       return
 
     # show switch back widget
     @html App.view('widget/switch_back_to_user')()
-    $('#app').addClass('switchBackToUserSpace')
+    console.log('@el', @element())
+    @element().on('click', '.js-close', (e) =>
+      @switchBack(e)
+    )
 
   switchBack: (e) =>
     e.preventDefault()
@@ -34,5 +37,4 @@ class Widget extends App.Controller
     App.Auth._logout()
     window.location = App.Config.get('api_path') + '/sessions/switch_back'
 
-
 App.Config.set( 'switch_back_to_user', Widget, 'Widgets' )

app/assets/javascripts/app/controllers/widget/translation_inline.js.coffee

@@ -1,6 +1,5 @@
-class Widget extends App.Controller
+class Widget
   constructor: ->
-    super
 
     # bind on key down
     # if ctrl+shift+t is pressed, enable translation_inline and fire ui:rerender

app/assets/javascripts/app/lib/app_post/interface_handle.js.coffee

@@ -39,11 +39,13 @@ class App.Run extends App.Controller
     widgets = App.Config.get(config)
     if widgets
       for key, widget of widgets
-        el.append('<div id="' + key + '"></div>')
-        new widget( el: el.find("##{key}") )
+        new widget(
+          el:  el
+          key: key
+        )
     App.Event.trigger(event + ':ready')
 
-class App.Content extends App.Controller
+class App.Content extends App.ControllerWidgetPermanent
   className: 'content flex horizontal'
 
   constructor: ->