traffic-laser/src/graphic/Service/StateService.js

import VectorType from "../enum/VectorType.js";
import SelectState from "../enum/SelectState.js";

export default class StateService {
  constructor() {
    this.eventName = null;
    this.selectItem = null;
    this.focusItem = null;
    this.draggingItem = null;
  }

  getEventName() {
    return this.eventName;
  }

  setEventName(eventName) {
    this.eventName = eventName;
  }

  clearEventName() {
    this.eventName = null;
  }

  // type表示类型，state默认是select，但是有的元素需要知道选中的是哪个顶点
  setSelectItem(vectorId, type, state) {
    this.selectItem = {};
    this.selectItem.vectorId = vectorId;
    this.selectItem.type = type;

    if (symbolService.isSymbol(type)) {
      if (state == SelectState.Select) {
        this.selectItem.selectIndex = SelectState.All;
      } else {
        this.selectItem.selectIndex = state;
      }
    } else if (componentService.isComponent(type)) {
      if (state == SelectState.Select) {
        this.selectItem.selectIndex = SelectState.All;
      }
    } else if (type == VectorType.Tag) {
      if (state == SelectState.Select) {
        this.selectItem.selectIndex = SelectState.All;
      } else {
        this.selectItem.selectIndex = state;
      }
    } else if (furnitureService.isFurniture(type)) {
      if (state == SelectState.Select) {
        this.selectItem.selectIndex = SelectState.All;
      }
    }
  }

  getSelectItem() {
    return this.selectItem;
  }

  clearSelectItem() {
    this.selectItem = null;
  }

  getDraggingItem() {
    return this.draggingItem;
  }

  setDraggingItem(draggingItem) {
    this.draggingItem = draggingItem;
  }

  clearDraggingItem() {
    this.draggingItem = null;
  }

  getFocusItem() {
    return this.focusItem;
  }

  setFocusItem(focusItem) {
    this.focusItem = focusItem;
  }

  clearFocusItem() {
    this.focusItem = null;
  }

  clearItems() {
    this.selectItem = null;
    this.focusItem = null;
    this.draggingItem = null;
  }
}

const stateService = new StateService();
export { stateService };