feat: add onReady and onStateChange callbacks (#608)

* feat: add `onReady` and `onStateChange` callbacks to `InjectedNavigationContainer`

* fix: export `getActiveLeafRoute`

* fix: add `state` to `onStateChange`

* chore: remove duplicate export

Author: erik-slovak

src/Containers/InjectedNavigationContainer.tsx

@@ -12,6 +12,7 @@ import {
   createNavigationContainerRef,
   DefaultTheme,
   DarkTheme,
+  type NavigationState,
 } from '@react-navigation/native'
 import { useFlipper } from '@react-navigation/devtools'
 
@@ -25,13 +26,21 @@ import { registerOnActionFactory } from './ReactNavigationInjection'
 
 type Props = {
   children: React.ReactNode,
-  isDarkThemeEnabled: boolean,
   getContext: () => ResolveConditionContext,
+  isDarkThemeEnabled: boolean,
+  onReady?: () => void,
+  onStateChange?: (state: NavigationState | undefined) => void,
 }
 
 export const navigationRef = createNavigationContainerRef()
 
-export const InjectedNavigationContainer = ({ children, isDarkThemeEnabled, getContext }: Props): JSX.Element => {
+export const InjectedNavigationContainer = ({
+  children,
+  getContext,
+  isDarkThemeEnabled,
+  onReady,
+  onStateChange,
+}: Props): JSX.Element => {
   useFlipper(navigationRef)
   useAndroidBackNavigation(navigationRef)
 
@@ -43,6 +52,8 @@ export const InjectedNavigationContainer = ({ children, isDarkThemeEnabled, getC
     <NavigationContainer
       ref={navigationRef}
       theme={isDarkThemeEnabled ? DarkTheme : DefaultTheme}
+      onReady={onReady}
+      onStateChange={onStateChange}
     >
       {children}
     </NavigationContainer>

src/index.ts

@@ -9,9 +9,6 @@ export {
   registerScreenConditions,
   screenConditionConfigMap,
 } from './Api/ConditionManager'
-export {
-  getActiveLeafRoute,
-} from './Api/NavigationUtils'
 export { configManager } from './Config'
 export { registerOnActionFactory } from './Containers/ReactNavigationInjection'
 export {
@@ -62,7 +59,10 @@ export {
   conditionalNavigationManager,
   registerResolveCondition,
 } from './Api/ConditionalNavigationManager'
-export { calculateStaticTreeDepth } from './Api/NavigationUtils'
+export {
+  calculateStaticTreeDepth,
+  getActiveLeafRoute,
+} from './Api/NavigationUtils'
 export { useIsInitial } from './Hooks/UseIsInitial'
 export {
   type Navigation,