Added state to .push (#215)

* Added state to .push

* Added state to replace and kept state in location

* Added state to Link, replaceTo and pushedTo

* Updated docs

---------

Co-authored-by: Liam Ma <[email protected]>

Author: AlexanderKaran

docs/api/components.md

@@ -1,6 +1,6 @@
 ## Router
 
-The `Router` component should ideally wrap your client app as high up in the tree as possible. 
+The `Router` component should ideally wrap your client app as high up in the tree as possible.
 
 If you are planning to render your application on the server, we recommend creating a composition boundary between your router and the core of your application, including your `RouteComponent`.
 
@@ -25,21 +25,25 @@ import { appRoutes } from './routing';
 
 const resourcesPlugin = createResourcesPlugin({});
 
-<Router history={createBrowserHistory()} routes={appRoutes} plugins={[resourcesPlugin]}>
+<Router
+  history={createBrowserHistory()}
+  routes={appRoutes}
+  plugins={[resourcesPlugin]}
+>
   <App />
 </Router>;
 ```
 
 ### Router props
 
-| prop              | type                      | description                                                                                                                                   |
-| ----------------- | ------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------- |
-| `routes`          | `Routes[]`                | Your application's routes                                                                                                                     |
-| `history`         | `History`                 | The history instance for the router, if omitted memory history will be used (optional but recommended)                                        |
-| `plugins`         | `Plugin[]`                | Plugin allows you to hook into Router API and extra login on route load/prefetch/etc                                       |
-| `basePath`        | `string`                  | Base path string that will get prepended to all route paths (optional)                                                                        |
-| `initialRoute`    | `Route`                   | The route your application is initially showing, it's a performance optimisation to avoid route matching cost on initial render(optional)     |
-| `onPrefetch`      | `function(RouterContext)` | Called when prefetch is triggered from a Link (optional)                                                                                      |
+| prop           | type                      | description                                                                                                                               |
+| -------------- | ------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------- |
+| `routes`       | `Routes[]`                | Your application's routes                                                                                                                 |
+| `history`      | `History`                 | The history instance for the router, if omitted memory history will be used (optional but recommended)                                    |
+| `plugins`      | `Plugin[]`                | Plugin allows you to hook into Router API and extra login on route load/prefetch/etc                                                      |
+| `basePath`     | `string`                  | Base path string that will get prepended to all route paths (optional)                                                                    |
+| `initialRoute` | `Route`                   | The route your application is initially showing, it's a performance optimisation to avoid route matching cost on initial render(optional) |
+| `onPrefetch`   | `function(RouterContext)` | Called when prefetch is triggered from a Link (optional)                                                                                  |
 
 ## Resources plugin
 
@@ -77,12 +81,11 @@ export const routes = [
 
 ### Resources plugin props
 
-| prop              | type                      | description                                                                                                                                   |
-| ----------------- | ------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------- |
-| `context` | `ResourceContext`         | Custom contextual data that will be provided to all your resources' `getKey` and `getData` methods (optional)                                 |
-| `resourceData`    | `ResourceData`            | Pre-resolved resource data. When provided, the router will not request resources on mount (optional)                                          |
-| `timeout`    | `number`            | `timout` is used to prevent slow APIs from causing long renders on the server, If a route resource does not return within the specified time then its data and promise will be set to null.(optional)                                          |
-
+| prop           | type              | description                                                                                                                                                                                           |
+| -------------- | ----------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `context`      | `ResourceContext` | Custom contextual data that will be provided to all your resources' `getKey` and `getData` methods (optional)                                                                                         |
+| `resourceData` | `ResourceData`    | Pre-resolved resource data. When provided, the router will not request resources on mount (optional)                                                                                                  |
+| `timeout`      | `number`          | `timout` is used to prevent slow APIs from causing long renders on the server, If a route resource does not return within the specified time then its data and promise will be set to null.(optional) |
 
 ## MemoryRouter
 
@@ -133,6 +136,7 @@ export const LinkExample = ({ href = '/' }) => {
 | `params`   | `{ [key]: string }`                     | Used with `to` to generate correct path url                                |
 | `query`    | `{ [key]: string }`                     | Used with `to` to generate correct query string url                        |
 | `prefetch` | `false` or `hover` or `mount`           | Used to start prefetching router resources                                 |
+| `state`    | `unknown`                               | Allows you to pass state via location                                      |
 
 ## Redirect
 
@@ -254,10 +258,10 @@ Actions that communicate with the router's routing functionality are exposed saf
 By using either of these you will gain access to the following actions
 
 | prop            | type       | arguments                                                | description                                                                                           |
-| --------------- | ---------- | -------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
-| `push`          | `function` | `path: Href | Location, state?: any`                     | Calls `history.push` with the supplied args                                                           |
+| --------------- | ---------- | -------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- | ---------------------------------------------- |
+| `push`          | `function` | `path: Href                                              | Location, state?: any`                                                                                | Calls `history.push` with the supplied args    |
 | `pushTo`        | `function` | `route: Route, attributes?: { params?: {}, query?: {} }` | Calls `history.push` generating the path from supplied route and attributes                           |
-| `replace`       | `function` | `path: Href | Location, state?: any`                     | Calls `history.replace` with the supplied args                                                        |
+| `replace`       | `function` | `path: Href                                              | Location, state?: any`                                                                                | Calls `history.replace` with the supplied args |
 | `replaceTo`     | `function` | `route: Route, attributes?: { params?: {}, query?: {} }` | Calls `history.replace` generating the path from supplied route and attributes                        |
 | `goBack`        | `function` |                                                          | Goes to the previous route in history                                                                 |
 | `goForward`     | `function` |                                                          | Goes to the next route in history                                                                     |

docs/api/hooks.md

@@ -12,7 +12,8 @@ import { FeedRefresher } from './FeedRefresher';
 import { FeedClearance } from './FeedCleaner';
 
 export const Feed = () => {
-  const { data, loading, error, update, refresh, clear } = useResource(feedResource);
+  const { data, loading, error, update, refresh, clear } =
+    useResource(feedResource);
 
   if (error) {
     return <Error error={error} />;
@@ -48,9 +49,10 @@ As well as returning actions that act on the resource (i.e. update and refresh),
 
 Where `-prev-` indicates the field will remain unchanged from any previous state, possibly the inital state.
 
-It is important to note 
-* The timeout state is essentially a hung loading state, with the difference that `promise = null` and `error != null`. Developers should give priority to `loading` when deciding between loading or error states for their components. Promises/errors should only ever be thrown on the client.
-* The `promise` reflects the last operation, either async or explicit update. Update will clear `error`, set `data`. It will also set a `promise` consistent with that `data` so long as no async is `loading`. When `loading` the `promise` will always reflect the future `data` or `error` from the pending async. 
+It is important to note
+
+- The timeout state is essentially a hung loading state, with the difference that `promise = null` and `error != null`. Developers should give priority to `loading` when deciding between loading or error states for their components. Promises/errors should only ever be thrown on the client.
+- The `promise` reflects the last operation, either async or explicit update. Update will clear `error`, set `data`. It will also set a `promise` consistent with that `data` so long as no async is `loading`. When `loading` the `promise` will always reflect the future `data` or `error` from the pending async.
 
 Additionaly `useResource` accepts additional arguments to customise behaviour, like `routerContext`.
 Check out [this section](../resources/usage.md) for more details on how to use the `useResource` hook.
@@ -71,6 +73,40 @@ export const MyRouteComponent = () => {
 };
 ```
 
+You can also use the `location` inside the `routerState` to access state passed via a `Link` or `push` from `routerActions`.
+
+```js
+const StartPage = () => {
+  const [routerState, routerActions] = useRouter();
+
+  const handleButtonClick = () => {
+    const url = '/destination';
+    const state = { referrer: 'StartPage' };
+    routerActions.push(url, state);
+  };
+
+  return (
+    <div>
+      <h1>Welcome to the Start Page</h1>
+      <button onClick={handleButtonClick}>Go to Destination</button>
+    </div>
+  );
+};
+
+const DestinationPage = () => {
+  const [routerState] = useRouter();
+
+  const referrer = routerState.location?.state?.referrer;
+
+  return (
+    <div>
+      <h1>Welcome to the Destination Page</h1>
+      {referrer && <p>You came from the {referrer}!</p>}
+    </div>
+  );
+};
+```
+
 ## createRouterSelector
 
 If you are worried about `useRouter` re-rendering too much, you can create custom router hooks using selectors that will trigger a re-render only when the selector output changes.  

src/common/types.ts

@@ -16,15 +16,16 @@ export type Location = {
   pathname: string;
   search: string;
   hash: string;
+  state?: unknown;
 };
 
 export type BrowserHistory = (
   | Omit<History4, 'location' | 'go' | 'createHref' | 'push' | 'replace'>
   | Omit<History5, 'location' | 'go' | 'createHref' | 'push' | 'replace'>
 ) & {
   location: Location;
-  push: (path: string | Location) => void;
-  replace: (path: string | Location) => void;
+  push: (path: string | Location, state?: unknown) => void;
+  replace: (path: string | Location, state?: unknown) => void;
 };
 
 export type History = BrowserHistory;
@@ -135,6 +136,7 @@ export type LinkProps = AnchorHTMLAttributes<HTMLAnchorElement> & {
   params?: MatchParams;
   query?: Query;
   prefetch?: false | 'hover' | 'mount';
+  state?: unknown;
 };
 
 export type HistoryBlocker = (

src/controllers/redirect/test.tsx

@@ -78,14 +78,14 @@ describe('<Redirect />', () => {
     const to = '/cool-page';
 
     expect(() => mountInRouter({ to })).not.toThrow();
-    expect(MockHistory.push).toHaveBeenCalledWith(to);
+    expect(MockHistory.push).toHaveBeenCalledWith(to, undefined);
   });
 
   it("doesn't break / throw when rendered with location `to` created from string", () => {
     const to = '/go-out?search=foo#hash';
 
     expect(() => mountInRouter({ to })).not.toThrow();
-    expect(MockHistory.push).toHaveBeenCalledWith(to);
+    expect(MockHistory.push).toHaveBeenCalledWith(to, undefined);
   });
 
   it.each([
@@ -121,7 +121,7 @@ describe('<Redirect />', () => {
     "doesn't break / throw when rendered with `to` as a Route object, %s",
     (_, to, params, query, expected) => {
       expect(() => mountInRouter({ to, params, query })).not.toThrow();
-      expect(MockHistory.push).toHaveBeenCalledWith(expected);
+      expect(MockHistory.push).toHaveBeenCalledWith(expected, undefined);
     }
   );
 
@@ -132,7 +132,7 @@ describe('<Redirect />', () => {
     'should navigate to given route %s correctly',
     (_, to, params, query, expected) => {
       mountInRouter({ to, query, params, push: false });
-      expect(MockHistory.replace).toHaveBeenCalledWith(expected);
+      expect(MockHistory.replace).toHaveBeenCalledWith(expected, undefined);
       expect(MockHistory.push).not.toHaveBeenCalled();
     }
   );
@@ -168,7 +168,7 @@ describe('<Redirect />', () => {
     'should use push history correctly with given route %s',
     (_, to, params, expected) => {
       mountInRouter({ to, params, push: true });
-      expect(MockHistory.push).toHaveBeenCalledWith(expected);
+      expect(MockHistory.push).toHaveBeenCalledWith(expected, undefined);
       expect(MockHistory.replace).not.toHaveBeenCalled();
     }
   );

src/controllers/router-actions/test.tsx

@@ -98,8 +98,8 @@ describe('<RouterActions />', () => {
       </Router>
     );
 
-    expect(HistoryMock.push).toBeCalledWith('push');
-    expect(HistoryMock.replace).toBeCalledWith('replace');
+    expect(HistoryMock.push).toBeCalledWith('push', undefined);
+    expect(HistoryMock.replace).toBeCalledWith('replace', undefined);
     expect(HistoryMock.goBack).toBeCalled();
     expect(HistoryMock.goForward).toBeCalled();
     expect(HistoryMock.block).toHaveBeenCalledWith(blockCallback);

src/controllers/router-store/index.tsx

@@ -174,13 +174,13 @@ const actions: AllRouterActions = {
     },
 
   push:
-    path =>
+    (path, state) =>
     ({ getState }) => {
       const { history, basePath } = getState();
       if (isExternalAbsolutePath(path)) {
         window.location.assign(path as string);
       } else {
-        history.push(getRelativePath(path, basePath));
+        history.push(getRelativePath(path, basePath), state);
       }
     },
 
@@ -198,17 +198,17 @@ const actions: AllRouterActions = {
         attributes.query,
         basePath
       );
-      history.push(location as any);
+      history.push(location as any, attributes?.state);
     },
 
   replace:
-    path =>
+    (path, state) =>
     ({ getState }) => {
       const { history, basePath } = getState();
       if (isExternalAbsolutePath(path)) {
         window.location.replace(path as string);
       } else {
-        history.replace(getRelativePath(path, basePath) as any);
+        history.replace(getRelativePath(path, basePath) as any, state);
       }
     },
 
@@ -226,7 +226,7 @@ const actions: AllRouterActions = {
         attributes.query,
         basePath
       );
-      history.replace(location as any);
+      history.replace(location as any, attributes?.state);
     },
 
   goBack: