add spec for ImageStore (facebook#25101)

Summary:
This PR solves part of this issue: facebook#24875

## Changelog

[General] [Added] - add TM spec for ImageStore
Pull Request resolved: facebook#25101

Reviewed By: hramos

Differential Revision: D15583463

Pulled By: fkgozali

fbshipit-source-id: 17e87e8fecb35d42a981b1fb348e40d2b1e91cc6

Libraries/Image/ImageStore.js

@@ -9,8 +9,7 @@
  */
 'use strict';
 
-const RCTImageStoreManager = require('../BatchedBridge/NativeModules')
-  .ImageStoreManager;
+import NativeImageStore from './NativeImageStore';
 
 const Platform = require('../Utilities/Platform');
 
@@ -31,8 +30,8 @@ class ImageStore {
    * @platform ios
    */
   static hasImageForTag(uri: string, callback: (hasImage: boolean) => void) {
-    if (RCTImageStoreManager.hasImageForTag) {
-      RCTImageStoreManager.hasImageForTag(uri, callback);
+    if (NativeImageStore.hasImageForTag) {
+      NativeImageStore.hasImageForTag(uri, callback);
     } else {
       warnUnimplementedMethod('hasImageForTag');
     }
@@ -47,8 +46,8 @@ class ImageStore {
    * @platform ios
    */
   static removeImageForTag(uri: string) {
-    if (RCTImageStoreManager.removeImageForTag) {
-      RCTImageStoreManager.removeImageForTag(uri);
+    if (NativeImageStore.removeImageForTag) {
+      NativeImageStore.removeImageForTag(uri);
     } else {
       warnUnimplementedMethod('removeImageForTag');
     }
@@ -70,12 +69,8 @@ class ImageStore {
     success: (uri: string) => void,
     failure: (error: any) => void,
   ) {
-    if (RCTImageStoreManager.addImageFromBase64) {
-      RCTImageStoreManager.addImageFromBase64(
-        base64ImageData,
-        success,
-        failure,
-      );
+    if (NativeImageStore.addImageFromBase64) {
+      NativeImageStore.addImageFromBase64(base64ImageData, success, failure);
     } else {
       warnUnimplementedMethod('addImageFromBase64');
     }
@@ -97,8 +92,8 @@ class ImageStore {
     success: (base64ImageData: string) => void,
     failure: (error: any) => void,
   ) {
-    if (RCTImageStoreManager.getBase64ForTag) {
-      RCTImageStoreManager.getBase64ForTag(uri, success, failure);
+    if (NativeImageStore.getBase64ForTag) {
+      NativeImageStore.getBase64ForTag(uri, success, failure);
     } else {
       warnUnimplementedMethod('getBase64ForTag');
     }

Libraries/Image/NativeImageStore.js

@@ -0,0 +1,34 @@
+/**
+ * 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 '../TurboModule/RCTExport';
+import * as TurboModuleRegistry from '../TurboModule/TurboModuleRegistry';
+
+export interface Spec extends TurboModule {
+  // Common
+  +getBase64ForTag: (
+    uri: string,
+    success: (base64ImageData: string) => void,
+    failure: (error: Object) => void,
+  ) => void;
+
+  // iOS-only
+  +hasImageForTag: (uri: string, callback: (hasImage: boolean) => void) => void;
+  +removeImageForTag: (uri: string) => void;
+  +addImageFromBase64: (
+    base64ImageData: string,
+    success: (uri: string) => void,
+    failure: (error: Object) => void,
+  ) => void;
+}
+
+export default TurboModuleRegistry.getEnforcing<Spec>('ImageStoringManager');