message: Review comments: maintaining the branch animation delay to a const
diff: @@ -4,6 +4,8 @@ import {DiagramSelection, DiagramSelectionType} from '@flogo/packages/diagram/in
  import {isEqual} from 'lodash';
  import {BUTTON_INSERT_CLASS, SELECTED_INSERT_TILE_CLASS} from '@flogo/core';
  +const BRANCH_ANIMATION_DURATION = 300;
  +
  @Directive({
  selector: '[fgAddActivity]'
  })
  @@ -33,14 +35,10 @@ export class AddActivityDirective implements OnInit, OnChanges, OnDestroy {
  this.addTaskService.close();
  }, 0);
  } else {
  - /***
  - * We are opening the popover with a time delay of 300 ms to let the "add branch" animation to end
  - * and allow the popover to get attached to the Insert tile created after an animation.
  - */
  setTimeout(() => {
  const selectedInsertTile = this.el.nativeElement.querySelector(`.${SELECTED_INSERT_TILE_CLASS} .${BUTTON_INSERT_CLASS}`);
  this.addTaskService.open(selectedInsertTile, currentSelection.taskId);
  - }, 300);
  + }, BRANCH_ANIMATION_DURATION);
  }
  }
  }
  