Method enqueAction

src/custom-element.js:1828–1840

* Enqueues the action with the element. If element has been upgraded and * built, the action is dispatched to the implementation right away. * Otherwise the invocation is enqueued until the implementation is ready * to receive actions. * @param {!./service/action-impl.ActionInvoc

(invocation)

     * @final
     */
    enqueAction(invocation) {
      assertNotTemplate(this);
      if (!this.isBuilt()) {
        if (this.actionQueue_ === undefined) {
          this.actionQueue_ = [];
        }
        devAssert(this.actionQueue_).push(invocation);
        // Schedule build sooner.
        this.build();
      } else {
        this.executionAction_(invocation, false);
      }
    }

    /**
     * Dequeues events from the queue and dispatches them to the implementation