Dispatch a Redux action with the subsequent action as payload to show a snackbar or dialog of Material UI

Question

I\'m using React with Redux and Material UI to build a webapp. The webapp is made of several pages and components. I know that a snackbar or dialog should be directly connected

Answer 1

Actually, right now usign redux was changed a little bit. We use createAction from redux-act, properly we use createReducer further. In a component we use connect decorator or class from react-redux. Connector provides redux state, dispatched actions, parent props. So for our snackbar we have:

1. actions:

   export const showMessageTop = createAction();
   export const closeMessageTop = createAction();
   

2. Reducer:

   import {createReducer} from 'redux-act';
   import * as ac from '../actionCreators/messageTop';
   export default createReducer(
     {
       [ac.showMessageTop]: (state, messageText) => ({messageText}),
       [ac.closeMessageTop]: () => ({messageText: ''}),
     },
     {
       messageText: window.location.search === '?login=1'
                  ? 'Welcome'
                  : '',
     }
   )
   

3. And a component(use decorator instead of class):

   import {closeMessageTop} from '../../actionCreators/messageTop'; 
   import MessageTop from './MessageTop';
   @connect(state => ({
     // gettext: gettext(state.locale.messages),
     messageText: state.messageTop.messageText,
   }))
   export default class MessageTopContainer extends React.Component {
   ...
   
   

So in current props we have this.props.messageText. And we can show this bar if we have message, or we can invoke closeAction which sets up messageText in empty string.