sdnr/wt/odlux/apps/configurationApp/src/handlers/valueSelectorHandler.ts

   1 import { IActionHandler } from "../../../../framework/src/flux/action";
   2 import { ViewSpecification } from "../models/uiModels";
   3 import { EnableValueSelector, SetSelectedValue, UpdateDeviceDescription, SetCollectingSelectionData, UpdatViewDescription } from "../actions/deviceActions";
   4
   5 export interface IValueSelectorState {
   6   collectingData: boolean;
   7   keyProperty: string | undefined;
   8   listSpecification: ViewSpecification | null;
   9   listData: any[];
  10   onValueSelected: (value: any) => void;
  11 }
  12
  13 const nc = (val: React.SyntheticEvent) => { };
  14 const valueSelectorStateInit: IValueSelectorState = {
  15   collectingData: false,
  16   keyProperty: undefined,
  17   listSpecification: null,
  18   listData: [],
  19   onValueSelected: nc,
  20 };
  21
  22 export const valueSelectorHandler: IActionHandler<IValueSelectorState> = (state = valueSelectorStateInit, action) => {
  23   if (action instanceof SetCollectingSelectionData) {
  24     state = {
  25       ...state,
  26      collectingData: action.busy,
  27     };
  28   } else if (action instanceof EnableValueSelector) {
  29     state = {
  30       ...state,
  31       collectingData: false,
  32       keyProperty: action.keyProperty,
  33       listSpecification: action.listSpecification,
  34       onValueSelected: action.onValueSelected,
  35       listData: action.listData,
  36     };
  37   } else if (action instanceof SetSelectedValue) {
  38     state.keyProperty && state.onValueSelected(action.value[state.keyProperty]);
  39     state = {
  40       ...state,
  41       collectingData: false,
  42       keyProperty: undefined,
  43       listSpecification: null,
  44       onValueSelected: nc,
  45       listData: [],
  46     };
  47   } else if (action instanceof UpdateDeviceDescription || action instanceof UpdatViewDescription) {
  48     state = {
  49       ...state,
  50       collectingData: false,
  51       keyProperty: undefined,
  52       listSpecification: null,
  53       onValueSelected: nc,
  54       listData: [],
  55     };
  56   }
  57   return state;
  58 };