feat(modeling): delete nested subprocesses

lib/features/modeling/behavior/SubProcessPlaneBehavior.js

@@ -95,6 +95,41 @@ export default function SubProcessPlaneBehavior(
   }, true);
 
 
+  this.preExecuted('shape.delete', function(context) {
+    var shape = context.shape;
+    if (!isCollapsedSubProcess(shape)) {
+      return;
+    }
+
+    var attachedRoot = elementRegistry.get(planeId(shape));
+
+    if (!attachedRoot) {
+      return;
+    }
+
+    modeling.removeElements(attachedRoot.children.slice());
+  }, true);
+
+
+  this.executed('shape.delete', function(context) {
+    var shape = context.shape;
+    if (!isCollapsedSubProcess(shape)) {
+      return;
+    }
+    removeRoot(context);
+  }, true);
+
+
+  this.reverted('shape.delete', function(context) {
+    var shape = context.shape;
+    if (!isCollapsedSubProcess(shape)) {
+      return;
+    }
+
+    createRoot(context);
+  }, true);
+
+
   this.preExecuted('shape.replace', function(context) {
     var oldShape = context.oldShape;
     var newShape = context.newShape;

test/spec/features/drilldown/legacy-subprocesses.bpmn

@@ -17,6 +17,7 @@
       </bpmn:subProcess>
       <bpmn:sequenceFlow id="Flow_1d6ajf7" sourceRef="inlineSubprocess_2" targetRef="Event_1ic2bhx" />
     </bpmn:subProcess>
+    <bpmn:subProcess id="emptyProcess" />
   </bpmn:process>
   <bpmndi:BPMNDiagram id="BPMNDiagram_1">
     <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="Process_0vkcvif">
@@ -37,14 +38,17 @@
       <bpmndi:BPMNShape id="Event_0lrpy3a_di" bpmnElement="Event_0lrpy3a">
         <dc:Bounds x="272" y="222" width="36" height="36" />
       </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Event_1ic2bhx_di" bpmnElement="Event_1ic2bhx">
+        <dc:Bounds x="782" y="222" width="36" height="36" />
+      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="inlineSubprocess_2_di" bpmnElement="inlineSubprocess_2">
         <dc:Bounds x="350" y="120" width="390" height="240" />
       </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="subprocess_startEvent_di" bpmnElement="subprocess_startEvent">
         <dc:Bounds x="410" y="222" width="36" height="36" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="Event_1ic2bhx_di" bpmnElement="Event_1ic2bhx">
+      <bpmndi:BPMNShape id="Activity_1hpaeri_di" bpmnElement="emptyProcess">
-        <dc:Bounds x="782" y="222" width="36" height="36" />
+        <dc:Bounds x="960" y="50" width="100" height="80" />
       </bpmndi:BPMNShape>
     </bpmndi:BPMNPlane>
   </bpmndi:BPMNDiagram>

test/spec/features/modeling/behavior/SubProcessPlaneBehaviorSpec.js

@@ -197,6 +197,71 @@ describe('features/modeling/behavior - subprocess planes', function() {
 
   });
 
+
+  describe('remove', function() {
+
+    var multipleDiagramXML = require('./SubProcessBehavior.multiple-planes.bpmn');
+
+    beforeEach(bootstrapModeler(multipleDiagramXML, {
+      modules: [
+        coreModule,
+        modelingModule,
+        replaceModule
+      ]
+    }));
+
+    it('should recursively remove diagrams', inject(function(elementRegistry, modeling, bpmnjs) {
+
+      // given
+      var subProcess = elementRegistry.get('SubProcess_2');
+
+      // when
+      modeling.removeShape(subProcess);
+
+      // then
+      var nestedTask = elementRegistry.get('nested_task');
+      var diagrams = bpmnjs.getDefinitions().diagrams;
+      expect(diagrams.length).to.equal(1);
+      expect(nestedTask).to.not.exist;
+    }));
+
+
+    it('should undo', inject(function(elementRegistry, modeling, bpmnjs, commandStack) {
+
+      // given
+      var subProcess = elementRegistry.get('SubProcess_2');
+      modeling.removeShape(subProcess);
+
+      // when
+      commandStack.undo();
+
+      // then
+      var nestedTask = elementRegistry.get('nested_task');
+      var diagrams = bpmnjs.getDefinitions().diagrams;
+      expect(diagrams.length).to.equal(3);
+      expect(nestedTask).to.exist;
+    }));
+
+
+    it('should undo', inject(function(elementRegistry, modeling, bpmnjs, commandStack) {
+
+      // given
+      var subProcess = elementRegistry.get('SubProcess_2');
+      modeling.removeShape(subProcess);
+
+      // when
+      commandStack.undo();
+      commandStack.redo();
+
+      // then
+      var nestedTask = elementRegistry.get('nested_task');
+      var diagrams = bpmnjs.getDefinitions().diagrams;
+      expect(diagrams.length).to.equal(1);
+      expect(nestedTask).to.not.exist;
+    }));
+
+  });
+
 });