feat: align to origin after serialization

lib/BaseViewer.js

@@ -376,20 +376,21 @@ BaseViewer.prototype.saveXML = wrapForCompatibility(function saveXML(options) {
       var xml = result.xml;
 
       try {
-        xml = self._emit('saveXML.serialized', {
+        self._emit('saveXML.serialized', {
           error: null,
           xml: xml
-        }) || xml;
+        }).then(function(result) {
-
           self._emit('saveXML.done', {
             error: null,
-          xml: xml
+            xml: result.xml
           });
+
+          return resolve({ xml: result.xml });
+        });
+
       } catch (e) {
         console.error('error in saveXML life-cycle listener', e);
       }
-
-      return resolve({ xml: xml });
     }).catch(function(err) {
 
       return reject(err);

package-lock.json

@@ -1308,6 +1308,14 @@
       "integrity": "sha512-RO1ibKvd27e6FEShVFfPALuHI3WjSVNeK5FIsmme/LYRNxjKuNj+Dt7bucLa6NdSv3JcVTyMlm9kGR84z1XpaQ==",
       "dev": true
     },
+    "align-to-origin-xml": {
+      "version": "git://github.com/philippfromme/align-to-origin-xml.git#1d958138e2fbe36b5ac6c5cad610c4b1af06220e",
+      "from": "git://github.com/philippfromme/align-to-origin-xml.git",
+      "requires": {
+        "bpmn-moddle": "^7.0.4",
+        "min-dash": "^3.5.2"
+      }
+    },
     "ansi-colors": {
       "version": "3.2.4",
       "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-3.2.4.tgz",

package.json

@@ -86,6 +86,7 @@
     "webpack": "^4.44.2"
   },
   "dependencies": {
+    "align-to-origin-xml": "git://github.com/philippfromme/align-to-origin-xml.git",
     "bpmn-moddle": "^7.0.4",
     "css.escape": "^1.5.1",
     "diagram-js": "^7.0.0",

test/spec/ModelerSpec.js

@@ -14,6 +14,8 @@ import {
   collectTranslations
 } from 'test/TestHelper';
 
+import AlignToOrigin from 'align-to-origin-xml';
+
 
 var singleStart = window.__env__ && window.__env__.SINGLE_START === 'modeler';
 
@@ -36,7 +38,10 @@ describe('Modeler', function() {
       container: container,
       keyboard: {
         bindTo: document
-      }
+      },
+      additionalModules: [
+        AlignToOrigin
+      ]
     });
 
     setBpmnJS(modeler);
@@ -49,11 +54,17 @@ describe('Modeler', function() {
   }
 
 
-  (singleStart ? it.only : it)('should import simple process', function() {
+  it.only('should import simple process', function() {
     var xml = require('../fixtures/bpmn/simple.bpmn');
     return createModeler(xml).then(function(result) {
 
       expect(result.error).not.to.exist;
+
+      result.modeler.on('commandStack.changed', function() {
+        result.modeler.saveXML({ format: true }).then(function(result) {
+          console.log(result.xml);
+        });
+      })
     });
   });