fix(grid-snapping): do not update waypoints on multiple create

Related to https://github.com/camunda/camunda-modeler/issues/1617

lib/features/grid-snapping/behavior/LayoutConnectionBehavior.js

@@ -30,7 +30,7 @@ export default function LayoutConnectionBehavior(eventBus, gridSnapping, modelin
         hints = context.hints || {},
         waypoints = connection.waypoints;
 
-    if (hints.connectionStart || hints.connectionEnd) {
+    if (hints.connectionStart || hints.connectionEnd || hints.createElementsBehavior === false) {
       return;
     }
 

test/spec/features/grid-snapping/behavior/LayoutConnectionBehaviorSpec.js

@@ -7,24 +7,27 @@ import coreModule from 'lib/core';
 import gridSnappingModule from 'lib/features/grid-snapping';
 import modelingModule from 'lib/features/modeling';
 import moveModule from 'diagram-js/lib/features/move';
+import copyPasteModule from 'lib/features/copy-paste';
+
+/* global sinon */
 
 
 describe('features/grid-snapping - layout connection', function() {
 
-  var diagramXML = require('./LayoutConnectionBehavior.bpmn');
-
-  beforeEach(bootstrapModeler(diagramXML, {
-    modules: [
-      coreModule,
-      gridSnappingModule,
-      modelingModule,
-      moveModule
-    ]
-  }));
-
-
   describe('on connection create', function() {
 
+    var diagramXML = require('./LayoutConnectionBehavior.bpmn');
+
+    beforeEach(bootstrapModeler(diagramXML, {
+      modules: [
+        coreModule,
+        gridSnappingModule,
+        modelingModule,
+        moveModule
+      ]
+    }));
+
+
     it('should snap 3 segment connection (1 middle segment)', inject(
       function(elementRegistry, modeling) {
 
@@ -64,6 +67,17 @@ describe('features/grid-snapping - layout connection', function() {
 
   describe('on connection layout', function() {
 
+    var diagramXML = require('./LayoutConnectionBehavior.bpmn');
+
+    beforeEach(bootstrapModeler(diagramXML, {
+      modules: [
+        coreModule,
+        gridSnappingModule,
+        modelingModule,
+        moveModule
+      ]
+    }));
+
     var task1, task2, connection;
 
     beforeEach(inject(function(elementRegistry, modeling) {
@@ -129,4 +143,50 @@ describe('features/grid-snapping - layout connection', function() {
 
   });
 
+
+  describe('on paste multiple', function() {
+
+    var diagramXML = require('./LayoutConnectionBehavior.bpmn');
+
+    beforeEach(bootstrapModeler(diagramXML, {
+      modules: [
+        coreModule,
+        gridSnappingModule,
+        modelingModule,
+        moveModule,
+        copyPasteModule
+      ]
+    }));
+
+
+    it('should not update waypoints', inject(
+      function(canvas, eventBus, copyPaste, elementRegistry) {
+
+        // given
+        var layoutSpy = sinon.spy();
+
+        copyPaste.copy([
+          elementRegistry.get('Task_2'),
+          elementRegistry.get('SequenceFlow_1'),
+          elementRegistry.get('Task_5')
+        ]);
+
+        eventBus.on('commandStack.connection.updateWaypoints.execute', layoutSpy);
+
+        // when
+        copyPaste.paste({
+          element: canvas.getRootElement(),
+          point: {
+            x: 100,
+            y: 200
+          }
+        });
+
+        // then
+        expect(layoutSpy).not.to.have.been.called;
+      }
+    ));
+
+  });
+
 });