react-dyn-tabs/lib/esm/utils/stateManagement/reducer.js

React dynamic tabs with full API

import actions from './actions.js';
import helper from '../helper';
export default function reducer(state, action) {
  switch (action.type) {
    case actions.close:
      {
        var arr = state.openTabIDs,
          removedItemIndex = arr.indexOf(action.tabId);
        if (removedItemIndex >= 0) {
          var newArr = arr.slice();
          newArr.splice(removedItemIndex, 1);
          return {
            selectedTabID: state.selectedTabID,
            openTabIDs: newArr
          };
        }
        return state;
      }
    case actions.open:
      {
        var _arr = state.openTabIDs,
          tabId = action.tabId;
        if (_arr.indexOf(tabId) === -1) {
          var _newArr = _arr.slice();
          _newArr.push(tabId);
          return {
            selectedTabID: state.selectedTabID,
            openTabIDs: _newArr
          };
        }
        return state;
      }
    case actions.refresh:
      return helper.getCopyState(state);
    case actions.active:
      {
        var _tabId = action.tabId;
        if (state.selectedTabID !== _tabId) return {
          selectedTabID: _tabId,
          openTabIDs: state.openTabIDs
        };
        return state;
      }
    case actions.sort:
      {
        var _arr2 = state.openTabIDs,
          _newArr2 = action.tabId,
          newArrCount = _newArr2.length;
        if (_arr2.length !== newArrCount) return state;
        for (var i = 0; i < newArrCount; i++) {
          if (_arr2.indexOf(_newArr2[i]) === -1) return state;
        }
        return {
          selectedTabID: state.selectedTabID,
          openTabIDs: _newArr2
        };
      }
    default:
      throw new Error("Undefined action type '" + action.type + "'");
  }
}