fix(react): support routes without a path for notfound routes, fixes #20259 (#20261)

packages/react-router/src/ReactRouter/IonRouteData.ts

@@ -1,6 +1,6 @@
 import { RouteProps, match } from 'react-router-dom';
 
 export interface IonRouteData {
-  match: match<{ tab: string }> | null;
+  match: match | null;
   childProps: RouteProps;
 }

packages/react-router/src/ReactRouter/Router.tsx

@@ -255,12 +255,23 @@ export class RouteManager extends React.Component<RouteManagerProps, RouteManage
     const views: ViewItem[] = [];
     let activeId: string | undefined;
     const ionRouterOutlet = React.Children.only(children) as React.ReactElement;
+    let foundMatch = false;
     React.Children.forEach(ionRouterOutlet.props.children, (child: React.ReactElement) => {
       const routeId = generateId();
       this.routes[routeId] = child;
       views.push(createViewItem(child, routeId, this.props.history.location));
     });
 
+    if (!foundMatch) {
+      const notFoundRoute = views.find(r => {
+        // try to find a route that doesn't have a path or from prop, that will be our not found route
+        return !r.routeData.childProps.path && !r.routeData.childProps.from;
+      });
+      if (notFoundRoute) {
+        notFoundRoute.show = true;
+      }
+    }
+
     this.registerViewStack(id, activeId, views, routerOutlet, this.props.location);
 
     function createViewItem(child: React.ReactElement<any>, routeId: string, location: HistoryLocation) {
@@ -289,6 +300,9 @@ export class RouteManager extends React.Component<RouteManagerProps, RouteManage
       if (match && view.isIonRoute) {
         activeId = viewId;
       }
+      if (!foundMatch && match) {
+        foundMatch = true;
+      }
       return view;
     }
   }
@@ -360,7 +374,7 @@ export class RouteManager extends React.Component<RouteManagerProps, RouteManage
     React.Children.forEach(ionRouterOutlet.props.children, (child: React.ReactElement) => {
       for (const routeKey in this.routes) {
         const route = this.routes[routeKey];
-        if (route.props.path === child.props.path) {
+        if (typeof route.props.path !== 'undefined' && route.props.path === (child.props.path || child.props.from)) {
           this.routes[routeKey] = child;
         }
       }

packages/react-router/src/ReactRouter/View.tsx

@@ -65,6 +65,7 @@ export class View extends React.Component<ViewProps, {}> {
             ...value,
             registerIonPage: this.registerIonPage.bind(this)
           };
+
           return (
             <NavContext.Provider value={newProvider}>
               {this.props.children}

packages/react-router/src/ReactRouter/ViewStacks.ts

@@ -13,7 +13,7 @@ export interface ViewStack {
  * The holistic view of all the Routes configured for an application inside of an IonRouterOutlet.
  */
 export class ViewStacks {
-  private viewStacks: { [key: string]: ViewStack | undefined } = {};
+  private viewStacks: { [key: string]: ViewStack | undefined; } = {};
 
   get(key: string) {
     return this.viewStacks[key];
@@ -31,25 +31,34 @@ export class ViewStacks {
     delete this.viewStacks[key];
   }
 
-  findViewInfoByLocation(location: HistoryLocation, viewKey?: string) {
+  findViewInfoByLocation(location: HistoryLocation, viewKey: string) {
     let view: ViewItem<IonRouteData> | undefined;
     let match: IonRouteData['match'] | null | undefined;
     let viewStack: ViewStack | undefined;
-    if (viewKey) {
-      viewStack = this.viewStacks[viewKey];
-      if (viewStack) {
-        viewStack.views.some(matchView);
+
+    viewStack = this.viewStacks[viewKey];
+    if (viewStack) {
+      viewStack.views.some(matchView);
+
+      if (!view) {
+        viewStack.views.some(r => {
+          // try to find a route that doesn't have a path or from prop, that will be our not found route
+          if (!r.routeData.childProps.path && !r.routeData.childProps.from) {
+            match = {
+              path: location.pathname,
+              url: location.pathname,
+              isExact: true,
+              params: {}
+            };
+            view = r;
+            return true;
+          }
+          return false;
+        });
       }
-    } else {
-      const keys = this.getKeys();
-      keys.some(key => {
-        viewStack = this.viewStacks[key];
-        return viewStack!.views.some(matchView);
-      });
     }
 
-    const result = { view, viewStack, match };
-    return result;
+    return { view, viewStack, match };
 
     function matchView(v: ViewItem) {
       const matchProps = {
@@ -61,7 +70,7 @@ export class ViewStacks {
       if (myMatch) {
         view = v;
         match = myMatch;
-        return view.location === location.pathname;
+        return true;
       }
       return false;
     }