[iOS] Add completion callback for registerService (#1776)

Author: wqyfavor

ios/sdk/WeexSDK/Sources/Engine/WXSDKEngine.h

@@ -82,6 +82,20 @@
  */
 + (void)registerService:(NSString *)name withScript:(NSString *)serviceScript withOptions:(NSDictionary *)options;
 
+/**
+ * @abstract Registers a component for a given name, options and js code
+ *
+ * @param name The service name to register
+ *
+ * @param options The service options to register
+ *
+ * @param serviceScript service js code to invoke
+ *
+ * @param completion Completion callback. JS is executed in asynchronously.
+ *
+ */
++ (void)registerService:(NSString *)name withScript:(NSString *)serviceScript withOptions:(NSDictionary *)options completion:(void(^)(BOOL result))completion;
+
 /**
  * @abstract Registers a component for a given name, options and js url
  *
@@ -92,7 +106,21 @@
  * @param serviceScriptUrl The service url to register
  *
  */
-+ (void)registerService:(NSString *)name withScriptUrl:(NSURL *)serviceScriptUrl WithOptions:(NSDictionary *)options;
++ (void)registerService:(NSString *)name withScriptUrl:(NSURL *)serviceScriptUrl withOptions:(NSDictionary *)options;
+
+/**
+ * @abstract Registers a component for a given name, options and js url
+ *
+ * @param name The service name to register
+ *
+ * @param options The service options to register
+ *
+ * @param serviceScriptUrl The service url to register
+ *
+ * @param completion Completion callback. JS is executed in asynchronously.
+ *
+ */
++ (void)registerService:(NSString *)name withScriptUrl:(NSURL *)serviceScriptUrl withOptions:(NSDictionary *)options completion:(void(^)(BOOL result))completion;
 
 /**
  * @abstract Registers a component for a given name, options and js code

ios/sdk/WeexSDK/Sources/Engine/WXSDKEngine.m

@@ -166,14 +166,25 @@ + (void)registerComponent:(NSString *)name withClass:(Class)clazz withProperties
 
 
 # pragma mark Service Register
+
 + (void)registerService:(NSString *)name withScript:(NSString *)serviceScript withOptions:(NSDictionary *)options
 {
-    [[WXSDKManager bridgeMgr] registerService:name withService:serviceScript withOptions:options];
+    [[WXSDKManager bridgeMgr] registerService:name withService:serviceScript withOptions:options completion:nil];
+}
+
++ (void)registerService:(NSString *)name withScript:(NSString *)serviceScript withOptions:(NSDictionary *)options completion:(void(^)(BOOL result))completion
+{
+    [[WXSDKManager bridgeMgr] registerService:name withService:serviceScript withOptions:options completion:completion];
+}
+
++ (void)registerService:(NSString *)name withScriptUrl:(NSURL *)serviceScriptUrl withOptions:(NSDictionary *)options
+{
+    [[WXSDKManager bridgeMgr] registerService:name withServiceUrl:serviceScriptUrl withOptions:options completion:nil];
 }
 
-+ (void)registerService:(NSString *)name withScriptUrl:(NSURL *)serviceScriptUrl WithOptions:(NSDictionary *)options
++ (void)registerService:(NSString *)name withScriptUrl:(NSURL *)serviceScriptUrl withOptions:(NSDictionary *)options completion:(void(^)(BOOL result))completion
 {
-    [[WXSDKManager bridgeMgr] registerService:name withServiceUrl:serviceScriptUrl withOptions:options];
+    [[WXSDKManager bridgeMgr] registerService:name withServiceUrl:serviceScriptUrl withOptions:options completion:completion];
 }
 
 + (void)unregisterService:(NSString *)name

ios/sdk/WeexSDK/Sources/Manager/WXBridgeManager.h

@@ -102,18 +102,19 @@ extern void WXPerformBlockOnBridgeThread(void (^block)(void));
  *  @param name      :   service name
  *  @param serviceScript    :   script code
  *  @param options   :   service options
+ *  @param completion : completion callback
  **/
-- (void)registerService:(NSString *)name withService:(NSString *)serviceScript withOptions:(NSDictionary *)options;
+- (void)registerService:(NSString *)name withService:(NSString *)serviceScript withOptions:(NSDictionary *)options completion:(void(^)(BOOL result))completion;
 
 
 /**
  *  Register JS service Script
  *  @param name         :   service name
  *  @param serviceScriptUrl    :   script url
  *  @param options      :   service options
+ *  @param completion : completion callback
  **/
-
--(void)registerService:(NSString *)name withServiceUrl:(NSURL *)serviceScriptUrl withOptions:(NSDictionary *)options;
+-(void)registerService:(NSString *)name withServiceUrl:(NSURL *)serviceScriptUrl withOptions:(NSDictionary *)options completion:(void(^)(BOOL result))completion;
 
 /**
  *  Unregister JS service Script

ios/sdk/WeexSDK/Sources/Manager/WXBridgeManager.m

@@ -288,28 +288,41 @@ - (JSValue *)callJSMethodWithResult:(WXCallJSMethod *)method
     return value;
 }
 
--(void)registerService:(NSString *)name withServiceUrl:(NSURL *)serviceScriptUrl withOptions:(NSDictionary *)options
+- (void)registerService:(NSString *)name withServiceUrl:(NSURL *)serviceScriptUrl withOptions:(NSDictionary *)options completion:(void(^)(BOOL result))completion
 {
-    if (!name || !serviceScriptUrl || !options) return;
+    if (!name || !serviceScriptUrl || !options) {
+        if (completion) {
+            completion(NO);
+        }
+        return;
+    }
     __weak typeof(self) weakSelf = self;
     WXResourceRequest *request = [WXResourceRequest requestWithURL:serviceScriptUrl resourceType:WXResourceTypeServiceBundle referrer:@"" cachePolicy:NSURLRequestUseProtocolCachePolicy];
     WXResourceLoader *serviceBundleLoader = [[WXResourceLoader alloc] initWithRequest:request];;
     serviceBundleLoader.onFinished = ^(WXResourceResponse *response, NSData *data) {
         __strong typeof(weakSelf) strongSelf = weakSelf;
         NSString *jsServiceString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
-        [strongSelf registerService:name withService:jsServiceString withOptions:options];
+        [strongSelf registerService:name withService:jsServiceString withOptions:options completion:completion];
     };
 
     serviceBundleLoader.onFailed = ^(NSError *loadError) {
         WXLogError(@"No script URL found");
+        if (completion) {
+            completion(NO);
+        }
     };
 
     [serviceBundleLoader start];
 }
 
-- (void)registerService:(NSString *)name withService:(NSString *)serviceScript withOptions:(NSDictionary *)options
+- (void)registerService:(NSString *)name withService:(NSString *)serviceScript withOptions:(NSDictionary *)options completion:(void(^)(BOOL result))completion
 {
-    if (!name || !serviceScript || !options) return;
+    if (!name || !serviceScript || !options) {
+        if (completion) {
+            completion(NO);
+        }
+        return;
+    }
 
     NSString *script = [WXServiceFactory registerServiceScript:name withRawScript:serviceScript withOptions:options];
 
@@ -318,6 +331,9 @@ - (void)registerService:(NSString *)name withService:(NSString *)serviceScript w
         // save it when execute
         [WXDebugTool cacheJsService:name withScript:serviceScript withOptions:options];
         [weakSelf.bridgeCtx executeJsService:script withName:name];
+        if (completion) {
+            completion(YES);
+        }
     });
 }