feat(keyboard-bindings): add append shortcut

lib/features/keyboard/BpmnKeyboardBindings.js

@@ -172,4 +172,22 @@ BpmnKeyboardBindings.prototype.registerBindings = function(keyboard, editorActio
     }
   });
 
+
+  // activate append element
+  // A
+  addListener('appendElement', function(context) {
+
+    var event = context.keyEvent;
+
+    if (keyboard.hasModifier(event)) {
+      return;
+    }
+
+    if (keyboard.isKey([ 'a', 'A' ], event)) {
+      editorActions.trigger('appendElement', event);
+
+      return true;
+    }
+  });
+
 };

test/spec/features/keyboard/BpmnKeyboardBindingsSpec.js

@@ -68,7 +68,8 @@ describe('features/keyboard', function() {
         'directEditing',
         'find',
         'moveToOrigin',
-        'replaceElement'
+        'replaceElement',
+        'appendElement'
       ];
 
       // then
@@ -178,6 +179,26 @@ describe('features/keyboard', function() {
         })
       );
 
+
+      it('should trigger append menu',
+        inject(function(keyboard, popupMenu, elementRegistry, selection) {
+
+          sinon.spy(popupMenu, 'open');
+
+          // given
+          var task = elementRegistry.get('Task_1');
+
+          selection.select(task);
+
+          var e = createKeyEvent(key);
+
+          // when
+          keyboard._keyHandler(e);
+
+          // then
+          expect(popupMenu.open).to.have.been.calledOnce;
+        }));
+
     });