Drag and drop now working more like expected

app/assets/javascripts/supplier/app/helpers/drag_n_drop.js.coffee

@@ -1,9 +1,10 @@
 # on why local storage is used in the enter events
 # http://stackoverflow.com/questions/8762635/getting-the-filename-during-the-dragenter-event
-DragNDrop = Ember.Namespace.create()
-DragNDrop.cancel = (e)->
+DragNDrop = Ember.Namespace.create
+  cancel: (e)->
     e.preventDefault()
     false
+  nothing: ->
 
 DragNDrop.Draggable = Ember.Mixin.create
   attributeBindings: 'draggable'
@@ -24,27 +25,31 @@ DragNDrop.Draggable = Ember.Mixin.create
 DragNDrop.Droppable = Ember.Mixin.create
   dragEnter: (e)->
     if @dragEntered
-      e.preventDefault()
+      # e.preventDefault()
       viewId = localStorage.getItem 'draggingView'
       view = Ember.View.views[viewId]
       @dragEntered view
-    else
-      DragNDrop.cancel(e)
-  dragOver: DragNDrop.cancel
+    # else
+    #   DragNDrop.cancel(e)
+  dragOver: DragNDrop.cancel # don't know why, but crucial for the current way of working with section tables
+  # dragOver: (e)->(e.preventDefault(); false)
   dragLeave: ->
     if @dragLeft
       @dragLeft()
   drop: (e)->
-    e.preventDefault()
+    # e.preventDefault()
     viewId = e.originalEvent.dataTransfer.getData('Text')
     view = Ember.View.views[viewId]
     return unless view
+    view.dragEnd(e) if view.dragEnd # not triggered on its own on drop
+
     # Calculate the element's center drop position relative to container
     position =
       left: Math.max(e.originalEvent.pageX - view.$el.offsetParent().offset().left - (view.$el.outerWidth()/2), 0)
       top:  Math.max(e.originalEvent.pageY - view.$el.offsetParent().offset().top - (view.$el.outerHeight()/2), 0)
 
     @dropped view, position if @dropped
+    @dragLeft() if @dragLeft # not triggered by system itself in case of drop
     false
 
 @DragNDrop = DragNDrop

app/assets/javascripts/supplier/app/views/section_tab_header_view.js.coffee

@@ -17,9 +17,11 @@ App.SectionTabHeaderView = Ember.View.extend DragNDrop.Droppable,
   dropped: (view)->
     if view.constructor.toString().match(/SectionTableView$/)
       table = view.get('content')
-      table.set 'section', @content
-      #table.get('transaction').commit()
-      table.save()
+      section =  @get('context')
+      if section isnt table.get('section')
+        section.get('tables').addObject table
+        table.save()
+        @get('controller').transitionToRoute 'section', section.get('id')
   didInsertElement: ->
     @$el = $ @get('element')