[webview_flutter_wkwebview] Instantiate a WKWebViewConfiguration in…

… `WKUIDelegate.onCreateWebView` (flutter#5971)

packages/webview_flutter/webview_flutter_wkwebview/example/ios/RunnerTests/FWFUIDelegateHostApiTests.m

@@ -68,7 +68,13 @@ - (void)testOnCreateWebViewForDelegateWithIdentifier {
   [instanceManager addDartCreatedInstance:mockWebView withIdentifier:1];
 
   WKWebViewConfiguration *configuration = [[WKWebViewConfiguration alloc] init];
-  [instanceManager addDartCreatedInstance:configuration withIdentifier:2];
+  id mockConfigurationFlutterApi = OCMPartialMock(mockFlutterAPI.webViewConfigurationFlutterApi);
+  NSNumber *__block configurationIdentifier;
+  OCMStub([mockConfigurationFlutterApi createWithIdentifier:[OCMArg checkWithBlock:^BOOL(id value) {
+                                         configurationIdentifier = value;
+                                         return YES;
+                                       }]
+                                                 completion:OCMOCK_ANY]);
 
   WKNavigationAction *mockNavigationAction = OCMClassMock([WKNavigationAction class]);
   OCMStub([mockNavigationAction request])
@@ -85,7 +91,7 @@ - (void)testOnCreateWebViewForDelegateWithIdentifier {
   OCMVerify([mockFlutterAPI
       onCreateWebViewForDelegateWithIdentifier:@0
                              webViewIdentifier:@1
-                       configurationIdentifier:@2
+                       configurationIdentifier:configurationIdentifier
                               navigationAction:[OCMArg
                                                    isKindOfClass:[FWFWKNavigationActionData class]]
                                     completion:OCMOCK_ANY]);

packages/webview_flutter/webview_flutter_wkwebview/ios/Classes/FWFGeneratedWebKitApis.h

@@ -1,7 +1,7 @@
 // Copyright 2013 The Flutter Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-// Autogenerated from Pigeon (v3.1.4), do not edit directly.
+// Autogenerated from Pigeon (v3.1.5), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
 #import <Foundation/Foundation.h>
 @protocol FlutterBinaryMessenger;
@@ -297,6 +297,14 @@ extern void FWFWKWebViewConfigurationHostApiSetup(
     id<FlutterBinaryMessenger> binaryMessenger,
     NSObject<FWFWKWebViewConfigurationHostApi> *_Nullable api);
 
+/// The codec used by FWFWKWebViewConfigurationFlutterApi.
+NSObject<FlutterMessageCodec> *FWFWKWebViewConfigurationFlutterApiGetCodec(void);
+
+@interface FWFWKWebViewConfigurationFlutterApi : NSObject
+- (instancetype)initWithBinaryMessenger:(id<FlutterBinaryMessenger>)binaryMessenger;
+- (void)createWithIdentifier:(NSNumber *)identifier
+                  completion:(void (^)(NSError *_Nullable))completion;
+@end
 /// The codec used by FWFWKUserContentControllerHostApi.
 NSObject<FlutterMessageCodec> *FWFWKUserContentControllerHostApiGetCodec(void);
 

packages/webview_flutter/webview_flutter_wkwebview/ios/Classes/FWFGeneratedWebKitApis.m

@@ -1,7 +1,7 @@
 // Copyright 2013 The Flutter Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-// Autogenerated from Pigeon (v3.1.4), do not edit directly.
+// Autogenerated from Pigeon (v3.1.5), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
 #import "FWFGeneratedWebKitApis.h"
 #import <Flutter/Flutter.h>
@@ -35,58 +35,72 @@ static id GetNullableObjectAtIndex(NSArray *array, NSInteger key) {
 
 @interface FWFNSKeyValueObservingOptionsEnumData ()
 + (FWFNSKeyValueObservingOptionsEnumData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFNSKeyValueObservingOptionsEnumData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFNSKeyValueChangeKeyEnumData ()
 + (FWFNSKeyValueChangeKeyEnumData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFNSKeyValueChangeKeyEnumData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFWKUserScriptInjectionTimeEnumData ()
 + (FWFWKUserScriptInjectionTimeEnumData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFWKUserScriptInjectionTimeEnumData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFWKAudiovisualMediaTypeEnumData ()
 + (FWFWKAudiovisualMediaTypeEnumData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFWKAudiovisualMediaTypeEnumData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFWKWebsiteDataTypeEnumData ()
 + (FWFWKWebsiteDataTypeEnumData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFWKWebsiteDataTypeEnumData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFWKNavigationActionPolicyEnumData ()
 + (FWFWKNavigationActionPolicyEnumData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFWKNavigationActionPolicyEnumData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFNSHttpCookiePropertyKeyEnumData ()
 + (FWFNSHttpCookiePropertyKeyEnumData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFNSHttpCookiePropertyKeyEnumData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFNSUrlRequestData ()
 + (FWFNSUrlRequestData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFNSUrlRequestData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFWKUserScriptData ()
 + (FWFWKUserScriptData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFWKUserScriptData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFWKNavigationActionData ()
 + (FWFWKNavigationActionData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFWKNavigationActionData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFWKFrameInfoData ()
 + (FWFWKFrameInfoData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFWKFrameInfoData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFNSErrorData ()
 + (FWFNSErrorData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFNSErrorData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFWKScriptMessageData ()
 + (FWFWKScriptMessageData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFWKScriptMessageData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 @interface FWFNSHttpCookieData ()
 + (FWFNSHttpCookieData *)fromMap:(NSDictionary *)dict;
++ (nullable FWFNSHttpCookieData *)nullableFromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
 
@@ -103,6 +117,9 @@ + (FWFNSKeyValueObservingOptionsEnumData *)fromMap:(NSDictionary *)dict {
   pigeonResult.value = [GetNullableObject(dict, @"value") integerValue];
   return pigeonResult;
 }
++ (nullable FWFNSKeyValueObservingOptionsEnumData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFNSKeyValueObservingOptionsEnumData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"value" : @(self.value),
@@ -121,6 +138,9 @@ + (FWFNSKeyValueChangeKeyEnumData *)fromMap:(NSDictionary *)dict {
   pigeonResult.value = [GetNullableObject(dict, @"value") integerValue];
   return pigeonResult;
 }
++ (nullable FWFNSKeyValueChangeKeyEnumData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFNSKeyValueChangeKeyEnumData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"value" : @(self.value),
@@ -141,6 +161,9 @@ + (FWFWKUserScriptInjectionTimeEnumData *)fromMap:(NSDictionary *)dict {
   pigeonResult.value = [GetNullableObject(dict, @"value") integerValue];
   return pigeonResult;
 }
++ (nullable FWFWKUserScriptInjectionTimeEnumData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFWKUserScriptInjectionTimeEnumData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"value" : @(self.value),
@@ -161,6 +184,9 @@ + (FWFWKAudiovisualMediaTypeEnumData *)fromMap:(NSDictionary *)dict {
   pigeonResult.value = [GetNullableObject(dict, @"value") integerValue];
   return pigeonResult;
 }
++ (nullable FWFWKAudiovisualMediaTypeEnumData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFWKAudiovisualMediaTypeEnumData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"value" : @(self.value),
@@ -179,6 +205,9 @@ + (FWFWKWebsiteDataTypeEnumData *)fromMap:(NSDictionary *)dict {
   pigeonResult.value = [GetNullableObject(dict, @"value") integerValue];
   return pigeonResult;
 }
++ (nullable FWFWKWebsiteDataTypeEnumData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFWKWebsiteDataTypeEnumData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"value" : @(self.value),
@@ -199,6 +228,9 @@ + (FWFWKNavigationActionPolicyEnumData *)fromMap:(NSDictionary *)dict {
   pigeonResult.value = [GetNullableObject(dict, @"value") integerValue];
   return pigeonResult;
 }
++ (nullable FWFWKNavigationActionPolicyEnumData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFWKNavigationActionPolicyEnumData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"value" : @(self.value),
@@ -219,6 +251,9 @@ + (FWFNSHttpCookiePropertyKeyEnumData *)fromMap:(NSDictionary *)dict {
   pigeonResult.value = [GetNullableObject(dict, @"value") integerValue];
   return pigeonResult;
 }
++ (nullable FWFNSHttpCookiePropertyKeyEnumData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFNSHttpCookiePropertyKeyEnumData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"value" : @(self.value),
@@ -248,6 +283,9 @@ + (FWFNSUrlRequestData *)fromMap:(NSDictionary *)dict {
   NSAssert(pigeonResult.allHttpHeaderFields != nil, @"");
   return pigeonResult;
 }
++ (nullable FWFNSUrlRequestData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFNSUrlRequestData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"url" : (self.url ?: [NSNull null]),
@@ -272,12 +310,15 @@ + (FWFWKUserScriptData *)fromMap:(NSDictionary *)dict {
   FWFWKUserScriptData *pigeonResult = [[FWFWKUserScriptData alloc] init];
   pigeonResult.source = GetNullableObject(dict, @"source");
   NSAssert(pigeonResult.source != nil, @"");
-  pigeonResult.injectionTime =
-      [FWFWKUserScriptInjectionTimeEnumData fromMap:GetNullableObject(dict, @"injectionTime")];
+  pigeonResult.injectionTime = [FWFWKUserScriptInjectionTimeEnumData
+      nullableFromMap:GetNullableObject(dict, @"injectionTime")];
   pigeonResult.isMainFrameOnly = GetNullableObject(dict, @"isMainFrameOnly");
   NSAssert(pigeonResult.isMainFrameOnly != nil, @"");
   return pigeonResult;
 }
++ (nullable FWFWKUserScriptData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFWKUserScriptData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"source" : (self.source ?: [NSNull null]),
@@ -297,12 +338,16 @@ + (instancetype)makeWithRequest:(FWFNSUrlRequestData *)request
 }
 + (FWFWKNavigationActionData *)fromMap:(NSDictionary *)dict {
   FWFWKNavigationActionData *pigeonResult = [[FWFWKNavigationActionData alloc] init];
-  pigeonResult.request = [FWFNSUrlRequestData fromMap:GetNullableObject(dict, @"request")];
+  pigeonResult.request = [FWFNSUrlRequestData nullableFromMap:GetNullableObject(dict, @"request")];
   NSAssert(pigeonResult.request != nil, @"");
-  pigeonResult.targetFrame = [FWFWKFrameInfoData fromMap:GetNullableObject(dict, @"targetFrame")];
+  pigeonResult.targetFrame =
+      [FWFWKFrameInfoData nullableFromMap:GetNullableObject(dict, @"targetFrame")];
   NSAssert(pigeonResult.targetFrame != nil, @"");
   return pigeonResult;
 }
++ (nullable FWFWKNavigationActionData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFWKNavigationActionData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"request" : (self.request ? [self.request toMap] : [NSNull null]),
@@ -323,6 +368,9 @@ + (FWFWKFrameInfoData *)fromMap:(NSDictionary *)dict {
   NSAssert(pigeonResult.isMainFrame != nil, @"");
   return pigeonResult;
 }
++ (nullable FWFWKFrameInfoData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFWKFrameInfoData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"isMainFrame" : (self.isMainFrame ?: [NSNull null]),
@@ -350,6 +398,9 @@ + (FWFNSErrorData *)fromMap:(NSDictionary *)dict {
   NSAssert(pigeonResult.localizedDescription != nil, @"");
   return pigeonResult;
 }
++ (nullable FWFNSErrorData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFNSErrorData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"code" : (self.code ?: [NSNull null]),
@@ -373,6 +424,9 @@ + (FWFWKScriptMessageData *)fromMap:(NSDictionary *)dict {
   pigeonResult.body = GetNullableObject(dict, @"body");
   return pigeonResult;
 }
++ (nullable FWFWKScriptMessageData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFWKScriptMessageData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"name" : (self.name ?: [NSNull null]),
@@ -397,6 +451,9 @@ + (FWFNSHttpCookieData *)fromMap:(NSDictionary *)dict {
   NSAssert(pigeonResult.propertyValues != nil, @"");
   return pigeonResult;
 }
++ (nullable FWFNSHttpCookieData *)nullableFromMap:(NSDictionary *)dict {
+  return (dict) ? [FWFNSHttpCookieData fromMap:dict] : nil;
+}
 - (NSDictionary *)toMap {
   return @{
     @"propertyKeys" : (self.propertyKeys ?: [NSNull null]),
@@ -899,6 +956,63 @@ void FWFWKWebViewConfigurationHostApiSetup(id<FlutterBinaryMessenger> binaryMess
     }
   }
 }
+@interface FWFWKWebViewConfigurationFlutterApiCodecReader : FlutterStandardReader
+@end
+@implementation FWFWKWebViewConfigurationFlutterApiCodecReader
+@end
+
+@interface FWFWKWebViewConfigurationFlutterApiCodecWriter : FlutterStandardWriter
+@end
+@implementation FWFWKWebViewConfigurationFlutterApiCodecWriter
+@end
+
+@interface FWFWKWebViewConfigurationFlutterApiCodecReaderWriter : FlutterStandardReaderWriter
+@end
+@implementation FWFWKWebViewConfigurationFlutterApiCodecReaderWriter
+- (FlutterStandardWriter *)writerWithData:(NSMutableData *)data {
+  return [[FWFWKWebViewConfigurationFlutterApiCodecWriter alloc] initWithData:data];
+}
+- (FlutterStandardReader *)readerWithData:(NSData *)data {
+  return [[FWFWKWebViewConfigurationFlutterApiCodecReader alloc] initWithData:data];
+}
+@end
+
+NSObject<FlutterMessageCodec> *FWFWKWebViewConfigurationFlutterApiGetCodec() {
+  static dispatch_once_t sPred = 0;
+  static FlutterStandardMessageCodec *sSharedObject = nil;
+  dispatch_once(&sPred, ^{
+    FWFWKWebViewConfigurationFlutterApiCodecReaderWriter *readerWriter =
+        [[FWFWKWebViewConfigurationFlutterApiCodecReaderWriter alloc] init];
+    sSharedObject = [FlutterStandardMessageCodec codecWithReaderWriter:readerWriter];
+  });
+  return sSharedObject;
+}
+
+@interface FWFWKWebViewConfigurationFlutterApi ()
+@property(nonatomic, strong) NSObject<FlutterBinaryMessenger> *binaryMessenger;
+@end
+
+@implementation FWFWKWebViewConfigurationFlutterApi
+
+- (instancetype)initWithBinaryMessenger:(NSObject<FlutterBinaryMessenger> *)binaryMessenger {
+  self = [super init];
+  if (self) {
+    _binaryMessenger = binaryMessenger;
+  }
+  return self;
+}
+- (void)createWithIdentifier:(NSNumber *)arg_identifier
+                  completion:(void (^)(NSError *_Nullable))completion {
+  FlutterBasicMessageChannel *channel = [FlutterBasicMessageChannel
+      messageChannelWithName:@"dev.flutter.pigeon.WKWebViewConfigurationFlutterApi.create"
+             binaryMessenger:self.binaryMessenger
+                       codec:FWFWKWebViewConfigurationFlutterApiGetCodec()];
+  [channel sendMessage:@[ arg_identifier ?: [NSNull null] ]
+                 reply:^(id reply) {
+                   completion(nil);
+                 }];
+}
+@end
 @interface FWFWKUserContentControllerHostApiCodecReader : FlutterStandardReader
 @end
 @implementation FWFWKUserContentControllerHostApiCodecReader

packages/webview_flutter/webview_flutter_wkwebview/ios/Classes/FWFUIDelegateHostApi.h

@@ -8,6 +8,7 @@
 #import "FWFGeneratedWebKitApis.h"
 #import "FWFInstanceManager.h"
 #import "FWFObjectHostApi.h"
+#import "FWFWebViewConfigurationHostApi.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
@@ -17,6 +18,8 @@ NS_ASSUME_NONNULL_BEGIN
  * Handles making callbacks to Dart for a WKUIDelegate.
  */
 @interface FWFUIDelegateFlutterApiImpl : FWFWKUIDelegateFlutterApi
+@property(readonly, nonatomic)
+    FWFWebViewConfigurationFlutterApiImpl *webViewConfigurationFlutterApi;
 - (instancetype)initWithBinaryMessenger:(id<FlutterBinaryMessenger>)binaryMessenger
                         instanceManager:(FWFInstanceManager *)instanceManager;
 @end