Story#115762063 - add double scroll

app/assets/javascripts/admin/application.coffee

@@ -16,3 +16,35 @@ $(document).on 'page:change', ->
     $(this).validate()
   
   $('[data-toggle="popover"]').popover()
+
+
+
+
+  # doublescroll
+  $('[data-doublescroll]').doubleScroll({
+    onlyIfScroll: false,
+    scrollCss:
+      'overflow-x': 'auto'
+      'overflow-y': 'hidden'
+    contentCss:
+      'overflow-x': 'auto'
+      'overflow-y': 'hidden'
+    resetOnWindowResize: true
+  })
+
+  positionSlider = ->
+    for scroll in document.querySelectorAll('[data-doublescroll]')
+      wrapper = scroll.previousSibling
+      if $(scroll).offset().top < $(window).scrollTop()
+        wrapper.style.position = 'fixed'
+        wrapper.style.top      = '-5px'
+      else
+        wrapper.style.position = 'relative'
+        wrapper.style.top      = '0'
+    return
+
+  positionSlider()
+  $(window).scroll(positionSlider).resize positionSlider
+  #due .report-table width: auto top scrollbar appears after resize so we do fake resize action
+  $(window).resize()
+