Added loading screen in admin interface. After all features are implemented, a more generic controller call will do the job.

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

@@ -531,6 +531,21 @@ class App.Controller extends Spine.Controller
   stopPropagation: (e) ->
     e.stopPropagation()
 
+  startLoading: (el) =>
+    return if @initLoadingDone && !el
+    @initLoadingDone = true
+    @stopLoading()
+    later = =>
+      if el
+        el.html App.view('generic/page_loading')()
+      else
+        @html App.view('generic/page_loading')()
+    @initLoadingDoneDelay = @delay(later, 2800)
+
+  stopLoading: =>
+    return if !@initLoadingDoneDelay
+    @clearDelay(@initLoadingDoneDelay)
+
 class App.ControllerPermanent extends App.Controller
   constructor: ->
     super

app/assets/javascripts/app/controllers/_channel/email.coffee

@@ -244,6 +244,9 @@ class App.ChannelEmailAccountOverview extends App.Controller
     #@load()
 
   load: =>
+
+    @startLoading()
+
     @ajax(
       id:   'email_index'
       type: 'GET'
@@ -251,6 +254,8 @@ class App.ChannelEmailAccountOverview extends App.Controller
       processData: true
       success: (data, status, xhr) =>
 
+        @stopLoading()
+
         # load assets
         App.Collection.loadAssets(data.assets)
 

app/assets/javascripts/app/controllers/_settings/area.coffee

@@ -8,12 +8,14 @@ class App.SettingsArea extends App.Controller
     @load()
 
   load: ->
+    @startLoading()
     @ajax(
       id:    "setting_area_#{@area}"
       type:  'GET'
       url:   "#{@apiPath}/settings/area/#{@area}"
       processData: true
       success: (data, status, xhr) =>
+        @stopLoading()
         App.Collection.load( localStorage: false, type: 'Setting', data: data )
         @render()
     )

app/assets/javascripts/app/controllers/calendar.coffee

@@ -16,6 +16,7 @@ class Index extends App.ControllerContent
     #@load()
 
   load: =>
+    @startLoading()
     @ajax(
       id:   'calendar_index'
       type: 'GET'
@@ -29,6 +30,7 @@ class Index extends App.ControllerContent
         # load assets
         App.Collection.loadAssets(data.assets)
 
+        @stopLoading()
         @render(data)
     )
 

app/assets/javascripts/app/controllers/object_manager.coffee

@@ -10,12 +10,14 @@ class Index extends App.ControllerTabs
     @title 'Objects', true
 
     # get data
+    @startLoading()
     @ajax(
       id:    'object_manager_attributes_list'
       type:  'GET'
       url:   @apiPath + '/object_manager_attributes_list'
       processData: true
       success: (data, status, xhr) =>
+        @stopLoading()
         @build(data.objects)
     )
 

app/assets/javascripts/app/controllers/session.coffee

@@ -20,11 +20,13 @@ class Index extends App.ControllerContent
 
   # fetch data, render view
   load: ->
+    @startLoading()
     @ajax(
       id:    'sessions'
       type:  'GET'
       url:   @apiPath + '/sessions'
       success: (data) =>
+        @stopLoading()
         @render(data)
     )
 

app/assets/javascripts/app/controllers/sla.coffee

@@ -15,16 +15,15 @@ class Index extends App.ControllerContent
     #@load()
 
   load: =>
+    @startLoading()
     @ajax(
       id:   'sla_index'
       type: 'GET'
       url:  @apiPath + '/slas'
       processData: true
       success: (data, status, xhr) =>
-
-        # load assets
         App.Collection.loadAssets(data.assets)
-
+        @stopLoading()
         @render(data)
     )
 

app/assets/javascripts/app/controllers/translation.coffee

@@ -255,12 +255,14 @@ class TranslationList extends App.Controller
     )
 
   load: =>
+    @startLoading()
     @ajax(
       id:    'translations_admin'
       type:  'GET'
       url:   @apiPath + "/translations/admin/lang/#{@locale}"
       processData: true
       success: (data, status, xhr) =>
+        @stopLoading()
         @render(data)
     )
 

app/assets/javascripts/app/controllers/trigger.coffee

@@ -47,16 +47,15 @@ class App.TriggerTime extends App.Controller
     #@load()
 
   load: =>
+    @startLoading()
     @ajax(
       id:   'trigger_time_index'
       type: 'GET'
       url:  @apiPath + '/jobs'
       processData: true
       success: (data, status, xhr) =>
-
-        # load assets
         #App.Collection.loadAssets(data.assets)
-
+        @stopLoading()
         @render(data)
     )
 

app/assets/javascripts/app/controllers/users.coffee

@@ -49,6 +49,7 @@ class Index extends App.Controller
     @recent()
 
   renderResult: (user_ids = []) ->
+    @stopLoading()
 
     callbackHeader = (header) ->
       attribute =
@@ -126,6 +127,7 @@ class Index extends App.Controller
     @$('.tab.active').each( (i,d) ->
       role_ids.push $(d).data('id')
     )
+    @startLoading(@$('.table-overview'))
     App.Ajax.request(
       id:    'search'
       type:  'GET'
@@ -137,11 +139,10 @@ class Index extends App.Controller
         full:  1
       processData: true,
       success: (data, status, xhr) =>
-
-        # load assets
         App.Collection.loadAssets(data.assets)
-
         @renderResult(data.user_ids)
+      done: =>
+        @stopLoading()
     )
 
   recent: =>
@@ -149,6 +150,7 @@ class Index extends App.Controller
     @$('.tab.active').each( (i,d) ->
       role_ids.push $(d).data('id')
     )
+    @startLoading(@$('.table-overview'))
     App.Ajax.request(
       id:    'search'
       type:  'GET'
@@ -159,11 +161,10 @@ class Index extends App.Controller
         full:  1
       processData: true,
       success: (data, status, xhr) =>
-
-        # load assets
         App.Collection.loadAssets(data.assets)
-
         @renderResult(data.user_ids)
+      complete: =>
+        @stopLoading()
     )
 
   new: (e) ->

app/assets/javascripts/app/lib/app_post/delay.coffee

@@ -32,7 +32,7 @@ class _delaySingleton extends Spine.Module
   constructor: ->
     @levelStack = {}
 
-  set: ( callback, timeout, key, level ) ->
+  set: ( callback, timeout, key, level ) =>
 
     if !level
       level = '_all'
@@ -59,9 +59,9 @@ class _delaySingleton extends Spine.Module
       level:    level
     }
 
-    return delay_id
+    key.toString()
 
-  clear: ( key, level ) ->
+  clear: ( key, level ) =>
 
     if !level
       level = '_all'
@@ -80,19 +80,19 @@ class _delaySingleton extends Spine.Module
     if _.isEmpty( @levelStack[ level ] )
       delete @levelStack[ level ]
 
-  clearLevel: (level) ->
+  clearLevel: (level) =>
     return if !@levelStack[ level ]
     for key, data of @levelStack[ level ]
       @clear( key, level )
     delete @levelStack[level]
 
-  reset: ->
+  reset: =>
     for level, items of @levelStack
       for key, data of items
         @clear( key, level )
       @levelStack[level] = {}
     true
 
-  _all: ->
+  _all: =>
     @levelStack
 

app/assets/javascripts/app/lib/app_post/interval.coffee

@@ -32,7 +32,7 @@ class _intervalSingleton extends Spine.Module
   constructor: ->
     @levelStack = {}
 
-  set: ( callback, timeout, key, level ) ->
+  set: ( callback, timeout, key, level ) =>
 
     if !level
       level = '_all'
@@ -57,9 +57,9 @@ class _intervalSingleton extends Spine.Module
       level:       level
     }
 
-    return interval_id
+    key.toString()
 
-  clear: ( key, level ) ->
+  clear: ( key, level ) =>
 
     if !level
       level = '_all'
@@ -78,18 +78,18 @@ class _intervalSingleton extends Spine.Module
     if _.isEmpty( @levelStack[ level ] )
       delete @levelStack[ level ]
 
-  clearLevel: (level) ->
+  clearLevel: (level) =>
     return if !@levelStack[ level ]
     for key, data of @levelStack[ level ]
       @clear( key, level )
     delete @levelStack[level]
 
-  reset: ->
+  reset: =>
     for level, items of @levelStack
       for key, data of items
         @clear( key, level )
       @levelStack[level] = {}
     true
 
-  _all: ->
+  _all: =>
     @levelStack

app/assets/javascripts/app/views/generic/page_loading.jst.eco

@@ -0,0 +1,4 @@
+<div class="page-loading">
+  <div class="small loading icon"></div>
+  <div class="page-loading-label"><%- @T('Loading...') %></div>
+</div>