styling moved to css

frontend-js/src/main/css/global.css

@@ -36,6 +36,15 @@
     transition: background-color 0.4s ease-in-out 0s;
 }
 
+.minerva-header .minerva-loading-div {
+    display: none;
+    float: right;
+}
+
+.minerva-header .minerva-loading-div img {
+    height: 35px;
+}
+
 .minerva-checkbox-grid li {
     display: block;
     float: left;

frontend-js/src/main/js/gui/Header.js

@@ -3,7 +3,6 @@
 /* exported logger */
 
 var AbstractGuiElement = require('./AbstractGuiElement');
-var GuiConnector = require('../GuiConnector');
 var PanelControlElementType = require('./PanelControlElementType');
 var Functions = require('../Functions');
 var OptionsMenu = require('./OptionsMenu');
@@ -18,6 +17,7 @@ var xss = require('xss');
  * @param {Object} params
  * @param {HTMLElement} params.element
  * @param {CustomMap} params.customMap
+ * @param {boolean} params.optionsMenu
  * @param {Configuration} params.configuration
  * @param {Project} [params.project]
  * @param {ServerConnector} [params.serverConnector]
@@ -55,15 +55,13 @@ Header.prototype._createHeaderGui = function (guiParams) {
 
   var loadingDiv = Functions.createElement({
     type: "div",
-    style: "display:none; "
+    className: "minerva-loading-div"
   });
-  loadingDiv.style.float = "right";
 
   var loadingImg = Functions.createElement({
     type: "img",
     src: 'resources/images/icons/ajax-loader.gif'
   });
-  loadingImg.style.height = "35px";
   loadingDiv.appendChild(loadingImg);
   this.setControlElement(PanelControlElementType.FOOTER_LOADING_DIV, loadingDiv);
 
@@ -151,7 +149,7 @@ Header.prototype.init = function () {
     self._loadMessages = [];
     self._onDataLoadStart = function (e) {
       self.addLoadMessage(e.arg);
-      div.style.display = "block";
+      $(div).show();
       div.title = e.arg;
     };
 
@@ -160,7 +158,7 @@ Header.prototype.init = function () {
       if (self._loadMessages.length > 0) {
         div.title = self._loadMessages[0];
       } else {
-        div.style.display = "none";
+        $(div).hide();
       }
     };
     ServerConnector.addListener("onDataLoadStart", self._onDataLoadStart);