feat(iOS): Complete TCP mock logic. (didi#1053)

1. Fix xPath become nil error.

Author: ChasonTang

iOS/DoKit/Classes/Foundation/DKMultiControlStreamManager.h

@@ -34,7 +34,9 @@ typedef NS_ENUM(NSUInteger, DKMultiControlStreamManagerState) {
 /// @brief Main thread.
 @interface DKMultiControlStreamManager : NSObject
 
-@property(nonatomic, nullable, copy) NSString *_Nullable (^searchIdConstructor)(NSURL *url);
+@property(nonatomic, nullable, copy) NSString *(^searchIdConstructor)(NSURL *url);
+
+@property(nonatomic, nullable, copy) void (^tcpHandler)(NSString *_Nullable message);
 
 @property(readonly) DKMultiControlStreamManagerState state;
 
@@ -60,6 +62,8 @@ typedef NS_ENUM(NSUInteger, DKMultiControlStreamManagerState) {
 
 - (void)broadcastWithActionMessage:(NSString *)message;
 
+- (void)broadcastWithTCPMessage:(nullable NSString *)message;
+
 @end
 
 NS_ASSUME_NONNULL_END

iOS/DoKit/Classes/Foundation/DKMultiControlStreamManager.m

@@ -29,8 +29,6 @@
 
 static NSString *const MULTI_CONTROL_HOST = @"mc_host";
 
-static NSString *const MULTI_CONTROL_ACTION = @"action";
-
 //static NSString *const BEHAVIOR_ID = @"68753A444D6F12269C600050E4C00067";
 
 @interface DKMultiControlStreamManager ()
@@ -89,7 +87,7 @@ - (void)enableMultiControlWithUrl:(NSURL *)url {
         typeof(weakSelf) self = weakSelf;
         if ([commonDTOModel.dataType isEqualToString:MULTI_CONTROL_HOST]) {
             [self changeToSlave];
-        } else if ([commonDTOModel.dataType isEqualToString:MULTI_CONTROL_ACTION]) {
+        } else if ([commonDTOModel.dataType isEqualToString:DK_ACTION]) {
             // Handle behaviorId and process data.
             NSData *jsonData = [commonDTOModel.data dataUsingEncoding:NSUTF8StringEncoding];
             if (jsonData) {
@@ -103,6 +101,8 @@ - (void)enableMultiControlWithUrl:(NSURL *)url {
                     }
                 }
             }
+        } else if ([commonDTOModel.dataType isEqualToString:DK_TCP]) {
+            self.tcpHandler ? self.tcpHandler(commonDTOModel.data) : nil;
         }
     };
     for (id <DKMultiControlStreamManagerStateListener> listener in self.listenerArray) {
@@ -395,4 +395,28 @@ - (void)broadcastWithActionMessage:(NSString *)message {
     [self.webSocketSession sendString:dataString requestId:nil completionHandler:nil];
 }
 
+- (void)broadcastWithTCPMessage:(NSString *)message {
+    if (!self.webSocketSession) {
+        return;
+    }
+    DKCommonDTOModel *commonDTOModel = [[DKCommonDTOModel alloc] init];
+    commonDTOModel.requestId = nil;
+    commonDTOModel.deviceType = DK_DEVICE_TYPE;
+    commonDTOModel.data = message;
+    commonDTOModel.method = DK_WEBSOCKET_BROADCAST;
+    commonDTOModel.connectSerial = self.webSocketSession.sessionUUID;
+    commonDTOModel.dataType = DK_ACTION;
+    NSError *error = nil;
+    NSDictionary *jsonDictionary = [MTLJSONAdapter JSONDictionaryFromModel:commonDTOModel error:&error];
+    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:jsonDictionary ?: @{} options:0 error:&error];
+    NSString *dataString = nil;
+    if (jsonData) {
+        dataString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
+    }
+    if (!dataString) {
+        return;
+    }
+    [self.webSocketSession sendString:dataString requestId:nil completionHandler:nil];
+}
+
 @end

iOS/DoKit/Classes/Foundation/DTO/DKCommonDTOModel.h

@@ -32,6 +32,8 @@ extern NSString *DK_DATA_QUERY;
 
 extern NSString *DK_ACTION;
 
+extern NSString *DK_TCP;
+
 @interface DKCommonDTOModel : MTLModel <MTLJSONSerializing>
 
 @property(nonatomic, nullable, copy) NSNumber *requestId;

iOS/DoKit/Classes/Foundation/DTO/DKCommonDTOModel.m

@@ -30,6 +30,8 @@
 
 NSString *DK_ACTION = @"action";
 
+NSString *DK_TCP = @"tcp";
+
 @implementation DKCommonDTOModel
 
 + (NSDictionary *)JSONKeyPathsByPropertyKey {

iOS/DoraemonKit/Src/MultiControl/Function/EventSync/MessagePackager/DoraemonMCMessagePackager.m

@@ -29,6 +29,10 @@ + (DoraemonMCMessage *)packageMessageWithView:(UIView *)view
     DoraemonMCMessage *messageInstance = [[DoraemonMCMessage alloc] init];
     messageInstance.type = type;
     DoraemonMCXPathSerializer *xPathInstance = [DoraemonMCXPathSerializer xPathInstanceWithView:view];
+    if (xPathInstance.windowIndex == NSNotFound) {
+        // 如果存在埋点 SDK，埋点会被后调用，先前调用的业务 action 关闭了当前页面，导致 sender 不存在于视图中，会出现这种情况。这种情况需要过滤
+        return nil;
+    }
     if (xPathInstance.ignore) {
         return nil;
     }