Add spec for Linking (#24877)

Summary:
Part of #24875, adds a spec for linking.

## Changelog

[General] [Added] - TM Spec for Linking
Pull Request resolved: https://github.com/facebook/react-native/pull/24877

Differential Revision: D15374328

Pulled By: fkgozali

fbshipit-source-id: 4b86a75d58d275c0ddc864b4f3f1ec489b0b408b

Libraries/Linking/Linking.js

@@ -12,15 +12,11 @@
 
 const InteractionManager = require('../Interaction/InteractionManager');
 const NativeEventEmitter = require('../EventEmitter/NativeEventEmitter');
-const NativeModules = require('../BatchedBridge/NativeModules');
 const Platform = require('../Utilities/Platform');
 
 const invariant = require('invariant');
 
-const LinkingManager =
-  Platform.OS === 'android'
-    ? NativeModules.IntentAndroid
-    : NativeModules.LinkingManager;
+import NativeLinking from './NativeLinking';
 
 /**
  * `Linking` gives you a general interface to interact with both incoming
@@ -30,7 +26,7 @@ const LinkingManager =
  */
 class Linking extends NativeEventEmitter {
   constructor() {
-    super(LinkingManager);
+    super(NativeLinking);
   }
 
   /**
@@ -59,7 +55,7 @@ class Linking extends NativeEventEmitter {
    */
   openURL(url: string): Promise<any> {
     this._validateURL(url);
-    return LinkingManager.openURL(url);
+    return NativeLinking.openURL(url);
   }
 
   /**
@@ -69,7 +65,7 @@ class Linking extends NativeEventEmitter {
    */
   canOpenURL(url: string): Promise<boolean> {
     this._validateURL(url);
-    return LinkingManager.canOpenURL(url);
+    return NativeLinking.canOpenURL(url);
   }
 
   /**
@@ -78,7 +74,7 @@ class Linking extends NativeEventEmitter {
    * See https://facebook.github.io/react-native/docs/linking.html#opensettings
    */
   openSettings(): Promise<any> {
-    return LinkingManager.openSettings();
+    return NativeLinking.openSettings();
   }
 
   /**
@@ -90,9 +86,9 @@ class Linking extends NativeEventEmitter {
   getInitialURL(): Promise<?string> {
     return Platform.OS === 'android'
       ? InteractionManager.runAfterInteractions().then(() =>
-          LinkingManager.getInitialURL(),
+          NativeLinking.getInitialURL(),
         )
-      : LinkingManager.getInitialURL();
+      : NativeLinking.getInitialURL();
   }
 
   /*
@@ -103,10 +99,13 @@ class Linking extends NativeEventEmitter {
    * See https://facebook.github.io/react-native/docs/linking.html#sendintent
    */
   sendIntent(
-    action: String,
-    extras?: [{key: string, value: string | number | boolean}],
-  ) {
-    return LinkingManager.sendIntent(action, extras);
+    action: string,
+    extras?: Array<{key: string, value: string | number | boolean}>,
+  ): Promise<void> {
+    if (Platform.OS === 'android') {
+      return NativeLinking.sendIntent(action, extras);
+    }
+    return new Promise((resolve, reject) => reject(new Error('Unsupported')));
   }
 
   _validateURL(url: string) {

Libraries/Linking/NativeLinking.js

@@ -0,0 +1,37 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow
+ * @format
+ */
+
+'use strict';
+
+import type {TurboModule} from 'RCTExport';
+import * as TurboModuleRegistry from 'TurboModuleRegistry';
+import Platform from 'Platform';
+
+export interface Spec extends TurboModule {
+  // Common interface
+  +getInitialURL: () => Promise<string>;
+  +canOpenURL: (url: string) => Promise<boolean>;
+  +openURL: (url: string) => Promise<void>;
+  +openSettings: () => Promise<void>;
+
+  // Android only
+  +sendIntent: (
+    action: string,
+    extras: ?Array<{key: string, value: string | number | boolean}>,
+  ) => Promise<void>;
+
+  // Events
+  +addListener: (eventName: string) => void;
+  +removeListeners: (count: number) => void;
+}
+
+export default (Platform.OS === 'ios'
+  ? TurboModuleRegistry.getEnforcing<Spec>('LinkingManager')
+  : TurboModuleRegistry.getEnforcing<Spec>('IntentAndroid'));