initial commit from appmail

app/assets/javascripts/application/elements/ajax.coffee

@@ -0,0 +1,61 @@
+onStart = (event) ->
+  $('.flashMessage').remove()
+  $('input, select, textarea').blur()
+  $target = $(event.target)
+  if $target.is('form')
+    $('.js-form-submit', $target).addClass('is-spinning')
+  if $target.hasClass('button')
+    $($target).addClass('is-spinning')
+
+onComplete = (event, xhr)->
+  $target = $(event.target)
+  if xhr.responseJSON
+    data = xhr.responseJSON
+    if data.redirect_to
+      Turbolinks.clearCache()
+      Turbolinks.visit(data.redirect_to, {"action":"replace"})
+      console.log "Redirected to #{data.redirect_to}"
+
+    if data.alert
+      unSpin($target)
+      alert(data.alert)
+
+    if data.form_errors
+      if $target.is('form')
+        unSpin($target)
+        handleErrors($target, data.form_errors)
+
+    if data.flash
+      unSpin($target)
+      $('body .flashMessage').remove()
+      for key, value of data.flash
+        $message = $("<div class='flashMessage flashMessage--#{key}'>#{value}</div>")
+        $('body').prepend($message)
+
+    if data.region_html
+      unSpin($target)
+      $('.js-ajax-region').replaceWith(data.region_html)
+      $('[autofocus]', '.js-ajax-region').focus()
+
+  else
+    console.log "Unsupported return."
+
+unSpin = ($target)->
+  $target.removeClass('is-spinning')
+  $('.js-form-submit', $target).removeClass('is-spinning')
+
+
+handleErrors = (form, errors)->
+  html = $("<div class='formErrors errorExplanation'><ul></ul</div>")
+  list = $('ul', html)
+  $.each errors, ->
+    list.append("<li>#{this}</li>")
+  $('.formErrors', form).remove()
+  form.prepend($(html))
+  console.log errors
+
+$ ->
+  $.ajaxSettings.dataType = 'json'
+  $(document)
+    .on 'ajax:before', onStart
+    .on 'ajax:complete', onComplete