feat: Adding Typescript typings.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-router-navigation-prompt",
-  "version": "1.6.6",
+  "version": "1.6.7",
   "description": "A replacement component for the react-router `<Prompt/>`. Allows for more flexible dialogs.",
   "scripts": {
     "build": "webpack",
@@ -32,6 +32,7 @@
   "jsnext:main": "es/index.js",
   "main": "es/index.js",
   "module": "es/index.js",
+  "typings": "types/index.d.ts",
   "homepage": "https://github.com/ZacharyRSmith/react-router-navigation-prompt#readme",
   "peerDependencies": {
     "react": ">= 15",

types/index.d.ts

@@ -0,0 +1,44 @@
+import * as React from 'react';
+import * as H from 'history';
+import { RouteComponentProps, Omit } from 'react-router';
+
+declare module 'react-router-navigation-prompt' {
+  export interface ChildData {
+    isActive: boolean;
+    onCancel: () => void;
+    onConfirm: () => void;
+  }
+
+  export interface NavigationPromptProps extends RouteComponentProps<any> {
+    children: (data: ChildData) => React.ReactNode;
+    when: boolean | ((currentLocation: H.Location, nextLocation?: H.Location) => boolean);
+    afterCancel?: () => void;
+    afterConfirm?: () => void;
+    beforeCancel?: () => void;
+    beforeConfirm?: () => void;
+    renderIfNotActive?: boolean;
+    disableNative?: boolean;
+  }
+
+  interface NavigationPromptState {
+    action?: H.Action;
+    nextLocation?: H.Location;
+    isActive: boolean;
+    unblock: () => void;
+  }
+
+  export class NavigationPrompt extends React.Component<NavigationPromptProps, NavigationPromptState> {
+    _prevUserAction: string;
+    _isMounted: boolean;
+
+    block(nextLocation: H.Location, action: H.Action): boolean;
+    navigateToNextLocation(cb: () => void): void;
+    onCancel(): void;
+    onConfirm(): void;
+    onBeforeUnload(e: any): string
+    when(nextLocation?: H.Location): boolean;
+   }
+}
+
+// This is for the withRouter HOC being used as the default export.
+export default function NavigationPrompt(): React.Component<Omit<NavigationPromptProps, keyof RouteComponentProps<any>>>;