ToastProvider

src/components/App.js

@@ -1,6 +1,5 @@
 import React, { useEffect } from "react";
 import { HashRouter, Route, Switch, Redirect } from "react-router-dom";
-import ToastContainer from "./Toast/ToastContainer";
 
 // components
 import Layout from "./Layout/Layout";
@@ -35,7 +34,6 @@ export default function App() {
         <PublicRoute path="/login" component={Login} />
         <Route component={Error} />
       </Switch>
-      <ToastContainer />
     </HashRouter>
   );
 

src/components/toast/styles.js

@@ -9,5 +9,18 @@ export default makeStyles((theme) => ({
   notificationCloseButton: {
     position: "absolute",
     right: theme.spacing(2)
+  },
+  notificationComponent: {
+    paddingRight: theme.spacing(4)
+  },
+  progress: {
+    visibility: "hidden"
+  },
+  notification: {
+    display: "flex",
+    alignItems: "center",
+    background: "transparent",
+    boxShadow: "none",
+    overflow: "visible"
   }
 }));

src/context/ToastContext.js

@@ -0,0 +1,143 @@
+import React, { useReducer, useMemo, useCallback } from "react";
+import { toast } from "react-toastify";
+import useStyles from "../components/Toast/styles";
+import ToastContainer from "../components/Toast/ToastContainer";
+import Notification from "../components/Notification";
+
+const positions = [
+  toast.POSITION.TOP_LEFT,
+  toast.POSITION.TOP_CENTER,
+  toast.POSITION.TOP_RIGHT,
+  toast.POSITION.BOTTOM_LEFT,
+  toast.POSITION.BOTTOM_CENTER,
+  toast.POSITION.BOTTOM_RIGHT
+];
+
+const ToastStateContext = React.createContext();
+const ToastDispatchContext = React.createContext();
+
+const toastInitialState = { position: 2 };
+const toastReducer = (state, action) => {
+  switch (action.type) {
+    case "onNotificationPositionChange":
+      return { ...state, position: action.payload.position };
+    default: {
+      return state;
+    }
+  }
+};
+
+export const toastDispatchActions = (dispatch) => ({
+  changeNotificationPosition: (position) =>
+    dispatch({ type: "onNotificationPositionChange", payload: { position } })
+});
+
+const ToastProvider = ({ children }) => {
+  // var [errorToastId, setErrorToastId] = useState(null);
+  const [state, dispatch] = useReducer(toastReducer, toastInitialState);
+  const dispatchActions = useMemo(() => toastDispatchActions(dispatch), [
+    dispatch
+  ]);
+
+  const classes = useStyles();
+
+  const sendNotification = useCallback(
+    (componentProps, options) => {
+      return toast(
+        <Notification
+          {...componentProps}
+          className={classes.notificationComponent}
+        />,
+        options
+      );
+    },
+    [classes]
+  );
+
+  const notify = useCallback(
+    (message, type, extraButtonClick) => {
+      //     if (errorToastId && type === "error") return;
+
+      let componentProps;
+
+      switch (type) {
+        case "info":
+          componentProps = {
+            type: "feedback",
+            message,
+            variant: "contained",
+            color: "primary"
+          };
+          break;
+        case "error":
+          componentProps = {
+            type: "message",
+            message,
+            variant: "contained",
+            color: "secondary",
+            extraButton: "Resend",
+            extraButtonClick
+          };
+          break;
+        default:
+          componentProps = {
+            type: "shipped",
+            message,
+            variant: "contained",
+            color: "success"
+          };
+      }
+
+      const toastId = sendNotification(componentProps, {
+        type,
+        position: positions[state.position],
+        progressClassName: classes.progress,
+        //  onClose: type === "error" && (() => setErrorToastId(null)),
+        className: classes.notification
+      });
+
+      //     if (type === "error") setErrorToastId(toastId);
+
+      return toastId;
+    },
+    [sendNotification, classes, state.position]
+  );
+
+  const actions = useMemo(
+    () => ({
+      ...dispatchActions,
+      info: (message) => notify(message, "info"),
+      notify
+    }),
+    [dispatchActions, notify]
+  );
+
+  return (
+    <ToastStateContext.Provider value={state}>
+      <ToastDispatchContext.Provider value={actions}>
+        <>
+          {children}
+          <ToastContainer />
+        </>
+      </ToastDispatchContext.Provider>
+    </ToastStateContext.Provider>
+  );
+};
+
+const useToast = () => {
+  const context = React.useContext(ToastDispatchContext);
+  if (context === undefined) {
+    throw new Error("useToast must be used within a ToastProvider");
+  }
+  return context;
+};
+
+const useToastState = () => {
+  var context = React.useContext(ToastStateContext);
+  if (context === undefined) {
+    throw new Error("useToastState must be used within a ToastProvider");
+  }
+  return context;
+};
+
+export { ToastProvider, useToast, useToastState };

src/index.js

@@ -7,6 +7,7 @@ import App from "./components/App";
 import * as serviceWorker from "./serviceWorker";
 import { LayoutProvider } from "./context/LayoutContext";
 import { UserProvider } from "./context/UserContext";
+import { ToastProvider } from "./context/ToastContext";
 import "./utils/i18n";
 
 ReactDOM.render(
@@ -15,7 +16,9 @@ ReactDOM.render(
       <ThemeProvider theme={Themes.default}>
         <CssBaseline />
         <Suspense fallback={<div>Loading...</div>}>
-          <App />
+          <ToastProvider>
+            <App />
+          </ToastProvider>
         </Suspense>
       </ThemeProvider>
     </UserProvider>

src/pages/notifications/Notifications.js

@@ -15,20 +15,15 @@ import PageTitle from "../../components/PageTitle/PageTitle";
 import Notification from "../../components/Notification";
 import { Typography, Button } from "../../components/Wrappers/Wrappers";
 
-const positions = [
+// context
-  toast.POSITION.TOP_LEFT,
+import { useToast, useToastState } from "../../context/ToastContext";
-  toast.POSITION.TOP_CENTER,
-  toast.POSITION.TOP_RIGHT,
-  toast.POSITION.BOTTOM_LEFT,
-  toast.POSITION.BOTTOM_CENTER,
-  toast.POSITION.BOTTOM_RIGHT
-];
 
 export default function NotificationsPage(props) {
-  var classes = useStyles();
+  const classes = useStyles();
+  const { notify, changeNotificationPosition } = useToast();
+  const { position: notificationsPosition } = useToastState();
 
   // local
-  var [notificationsPosition, setNotificationPosition] = useState(2);
   var [errorToastId, setErrorToastId] = useState(null);
 
   return (
@@ -123,7 +118,7 @@ export default function NotificationsPage(props) {
                     <Button
                       variant="contained"
                       color="primary"
-                      onClick={() => handleNotificationCall("info")}
+                      onClick={() => notify("Info message", "info")}
                       className={classnames(classes.notificationCallButton)}
                     >
                       Info Message
@@ -131,7 +126,14 @@ export default function NotificationsPage(props) {
                     <Button
                       variant="contained"
                       color="secondary"
-                      onClick={() => handleNotificationCall("error")}
+                      onClick={() => {
+                        const toastId = notify(
+                          "Error message",
+                          "error",
+                          retryErrorNotification
+                        );
+                        setErrorToastId(toastId);
+                      }}
                       className={classnames(classes.notificationCallButton)}
                     >
                       Error + Retry Message
@@ -139,7 +141,7 @@ export default function NotificationsPage(props) {
                     <Button
                       variant="contained"
                       color="success"
-                      onClick={() => handleNotificationCall("success")}
+                      onClick={() => notify("Success message", "success")}
                       className={classnames(classes.notificationCallButton)}
                     >
                       Success Message
@@ -334,17 +336,6 @@ export default function NotificationsPage(props) {
     </>
   );
 
-  // #############################################################
-  function sendNotification(componentProps, options) {
-    return toast(
-      <Notification
-        {...componentProps}
-        className={classes.notificationComponent}
-      />,
-      options
-    );
-  }
-
   function retryErrorNotification() {
     var componentProps = {
       type: "message",
@@ -356,54 +347,5 @@ export default function NotificationsPage(props) {
       render: <Notification {...componentProps} />,
       type: "success"
     });
-    setErrorToastId(null);
-  }
-
-  function handleNotificationCall(notificationType) {
-    var componentProps;
-
-    if (errorToastId && notificationType === "error") return;
-
-    switch (notificationType) {
-      case "info":
-        componentProps = {
-          type: "feedback",
-          message: "New user feedback received",
-          variant: "contained",
-          color: "primary"
-        };
-        break;
-      case "error":
-        componentProps = {
-          type: "message",
-          message: "Message was not sent!",
-          variant: "contained",
-          color: "secondary",
-          extraButton: "Resend",
-          extraButtonClick: retryErrorNotification
-        };
-        break;
-      default:
-        componentProps = {
-          type: "shipped",
-          message: "The item was shipped",
-          variant: "contained",
-          color: "success"
-        };
-    }
-
-    var toastId = sendNotification(componentProps, {
-      type: notificationType,
-      position: positions[notificationsPosition],
-      progressClassName: classes.progress,
-      onClose: notificationType === "error" && (() => setErrorToastId(null)),
-      className: classes.notification
-    });
-
-    if (notificationType === "error") setErrorToastId(toastId);
-  }
-
-  function changeNotificationPosition(positionId) {
-    setNotificationPosition(positionId);
   }
 }

src/pages/notifications/styles.js

@@ -55,19 +55,6 @@ export default makeStyles((theme) => ({
   notificationItem: {
     marginTop: theme.spacing(2)
   },
-  progress: {
-    visibility: "hidden"
-  },
-  notification: {
-    display: "flex",
-    alignItems: "center",
-    background: "transparent",
-    boxShadow: "none",
-    overflow: "visible"
-  },
-  notificationComponent: {
-    paddingRight: theme.spacing(4)
-  },
   widgetHeader: {
     paddingBottom: 8
   }