asynchronous data overlay visualization might cause problems due to data loading latency

CHANGELOG

@@ -31,6 +31,8 @@ minerva (12.3.1~beta.1) unstable; urgency=low
   * Bug fix: pathways can be drawn using glyphs (#825)
   * Bug fix: empty background overlay doesn't show glyphs, instead standard 
     visualization is used (#826)
+  * Bug fix: asynchronous cals on showing/hiding data overlays might cause 
+    problems due to network latency (#830)
 
 minerva (13.1.0~beta.0) unstable; urgency=low
   * Feature: annotators are more flexible - you can define set of input and

frontend-js/src/main/js/map/surface/AliasSurface.js

@@ -177,7 +177,11 @@ AliasSurface.prototype.setBoundsForAlias = function (startX, endX) {
   var pointB = new Point(alias.getX() + endX * alias.getWidth(), alias.getY() + alias.getHeight());
 
   var bounds = new Bounds(pointA, pointB);
-  this.getMapCanvasObjects()[0].setBounds(bounds);
+
+  var mapCanvasObjects = this.getMapCanvasObjects();
+  for (var i = 0; i < mapCanvasObjects.length; i++) {
+    mapCanvasObjects[i].setBounds(bounds);
+  }
 };
 
 /**

frontend-js/src/test/js/map/surface/AliasSurface-test.js

@@ -61,11 +61,30 @@ describe('AliasSurface', function () {
         var bounds = surface.getBounds();
         surface.setBoundsForAlias(1, 3);
         var bounds2 = surface.getBounds();
-        assert.equal(bounds.getRightBottom().y, bounds2.getRightBottom().y);
+        assert.equal(bounds.getRightBottom().y, bounds2.getRightBottom().y, helper.EPSILON);
         assert.ok(bounds.getRightBottom().x !== bounds2.getRightBottom().x);
       });
     });
 
+    it("before alias init", function () {
+      var map;
+      var alias, surface;
+      return ServerConnector.getProject().then(function (project) {
+        map = helper.createCustomMap(project);
+        return map.getModel().getAliasById(329171);
+      }).then(function (result) {
+        alias = result;
+        surface = new AliasSurface({
+          alias: result,
+          overlayData: [helper.createLayoutAlias(alias)],
+          map: map
+        });
+        surface.setBoundsForAlias(1, 3);
+        var bounds = surface.getBounds();
+        assert.ok(bounds);
+      });
+    });
+
     it("from element with data overlay", function () {
       var map = helper.createCustomMap();
       var alias = helper.createAlias(map);