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// 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.
#import "FWFUIDelegateHostApi.h"
#import "FWFDataConverters.h"
@interface FWFUIDelegateFlutterApiImpl ()
// BinaryMessenger must be weak to prevent a circular reference with the host API it
// references.
@property(nonatomic, weak) id<FlutterBinaryMessenger> binaryMessenger;
// InstanceManager must be weak to prevent a circular reference with the object it stores.
@property(nonatomic, weak) FWFInstanceManager *instanceManager;
@end
@implementation FWFUIDelegateFlutterApiImpl
- (instancetype)initWithBinaryMessenger:(id<FlutterBinaryMessenger>)binaryMessenger
instanceManager:(FWFInstanceManager *)instanceManager {
self = [self initWithBinaryMessenger:binaryMessenger];
if (self) {
_binaryMessenger = binaryMessenger;
_instanceManager = instanceManager;
_webViewConfigurationFlutterApi =
[[FWFWebViewConfigurationFlutterApiImpl alloc] initWithBinaryMessenger:binaryMessenger
instanceManager:instanceManager];
}
return self;
}
- (long)identifierForDelegate:(FWFUIDelegate *)instance {
return [self.instanceManager identifierWithStrongReferenceForInstance:instance];
}
- (void)onCreateWebViewForDelegate:(FWFUIDelegate *)instance
webView:(WKWebView *)webView
configuration:(WKWebViewConfiguration *)configuration
navigationAction:(WKNavigationAction *)navigationAction
completion:(void (^)(NSError *_Nullable))completion {
if (![self.instanceManager containsInstance:configuration]) {
[self.webViewConfigurationFlutterApi createWithConfiguration:configuration
completion:^(NSError *error) {
NSAssert(!error, @"%@", error);
}];
}
NSNumber *configurationIdentifier =
@([self.instanceManager identifierWithStrongReferenceForInstance:configuration]);
FWFWKNavigationActionData *navigationActionData =
FWFWKNavigationActionDataFromNavigationAction(navigationAction);
[self onCreateWebViewForDelegateWithIdentifier:@([self identifierForDelegate:instance])
webViewIdentifier:
@([self.instanceManager
identifierWithStrongReferenceForInstance:webView])
configurationIdentifier:configurationIdentifier
navigationAction:navigationActionData
completion:completion];
}
@end
@implementation FWFUIDelegate
- (instancetype)initWithBinaryMessenger:(id<FlutterBinaryMessenger>)binaryMessenger
instanceManager:(FWFInstanceManager *)instanceManager {
self = [super initWithBinaryMessenger:binaryMessenger instanceManager:instanceManager];
if (self) {
_UIDelegateAPI = [[FWFUIDelegateFlutterApiImpl alloc] initWithBinaryMessenger:binaryMessenger
instanceManager:instanceManager];
}
return self;
}
- (WKWebView *)webView:(WKWebView *)webView
createWebViewWithConfiguration:(WKWebViewConfiguration *)configuration
forNavigationAction:(WKNavigationAction *)navigationAction
windowFeatures:(WKWindowFeatures *)windowFeatures {
[self.UIDelegateAPI onCreateWebViewForDelegate:self
webView:webView
configuration:configuration
navigationAction:navigationAction
completion:^(NSError *error) {
NSAssert(!error, @"%@", error);
}];
return nil;
}
@end
@interface FWFUIDelegateHostApiImpl ()
// BinaryMessenger must be weak to prevent a circular reference with the host API it
// references.
@property(nonatomic, weak) id<FlutterBinaryMessenger> binaryMessenger;
// InstanceManager must be weak to prevent a circular reference with the object it stores.
@property(nonatomic, weak) FWFInstanceManager *instanceManager;
@end
@implementation FWFUIDelegateHostApiImpl
- (instancetype)initWithBinaryMessenger:(id<FlutterBinaryMessenger>)binaryMessenger
instanceManager:(FWFInstanceManager *)instanceManager {
self = [self init];
if (self) {
_binaryMessenger = binaryMessenger;
_instanceManager = instanceManager;
}
return self;
}
- (FWFUIDelegate *)delegateForIdentifier:(NSNumber *)identifier {
return (FWFUIDelegate *)[self.instanceManager instanceForIdentifier:identifier.longValue];
}
- (void)createWithIdentifier:(nonnull NSNumber *)identifier
error:(FlutterError *_Nullable *_Nonnull)error {
FWFUIDelegate *uIDelegate = [[FWFUIDelegate alloc] initWithBinaryMessenger:self.binaryMessenger
instanceManager:self.instanceManager];
[self.instanceManager addDartCreatedInstance:uIDelegate withIdentifier:identifier.longValue];
}
@end