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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 "FWFNavigationDelegateHostApi.h"
#import "FWFDataConverters.h"
#import "FWFWebViewConfigurationHostApi.h"
@interface FWFNavigationDelegateFlutterApiImpl ()
// InstanceManager must be weak to prevent a circular reference with the object it stores.
@property(nonatomic, weak) FWFInstanceManager *instanceManager;
@end
@implementation FWFNavigationDelegateFlutterApiImpl
- (instancetype)initWithBinaryMessenger:(id<FlutterBinaryMessenger>)binaryMessenger
instanceManager:(FWFInstanceManager *)instanceManager {
self = [self initWithBinaryMessenger:binaryMessenger];
if (self) {
_instanceManager = instanceManager;
}
return self;
}
- (long)identifierForDelegate:(FWFNavigationDelegate *)instance {
return [self.instanceManager identifierWithStrongReferenceForInstance:instance];
}
- (void)didFinishNavigationForDelegate:(FWFNavigationDelegate *)instance
webView:(WKWebView *)webView
URL:(NSString *)URL
completion:(void (^)(FlutterError *_Nullable))completion {
NSNumber *webViewIdentifier =
@([self.instanceManager identifierWithStrongReferenceForInstance:webView]);
[self didFinishNavigationForDelegateWithIdentifier:@([self identifierForDelegate:instance])
webViewIdentifier:webViewIdentifier
URL:URL
completion:completion];
}
- (void)didStartProvisionalNavigationForDelegate:(FWFNavigationDelegate *)instance
webView:(WKWebView *)webView
URL:(NSString *)URL
completion:(void (^)(FlutterError *_Nullable))completion {
NSNumber *webViewIdentifier =
@([self.instanceManager identifierWithStrongReferenceForInstance:webView]);
[self didStartProvisionalNavigationForDelegateWithIdentifier:@([self
identifierForDelegate:instance])
webViewIdentifier:webViewIdentifier
URL:URL
completion:completion];
}
- (void)
decidePolicyForNavigationActionForDelegate:(FWFNavigationDelegate *)instance
webView:(WKWebView *)webView
navigationAction:(WKNavigationAction *)navigationAction
completion:
(void (^)(FWFWKNavigationActionPolicyEnumData *_Nullable,
FlutterError *_Nullable))completion {
NSNumber *webViewIdentifier =
@([self.instanceManager identifierWithStrongReferenceForInstance:webView]);
FWFWKNavigationActionData *navigationActionData =
FWFWKNavigationActionDataFromNavigationAction(navigationAction);
[self
decidePolicyForNavigationActionForDelegateWithIdentifier:@([self
identifierForDelegate:instance])
webViewIdentifier:webViewIdentifier
navigationAction:navigationActionData
completion:completion];
}
- (void)didFailNavigationForDelegate:(FWFNavigationDelegate *)instance
webView:(WKWebView *)webView
error:(NSError *)error
completion:(void (^)(FlutterError *_Nullable))completion {
NSNumber *webViewIdentifier =
@([self.instanceManager identifierWithStrongReferenceForInstance:webView]);
[self didFailNavigationForDelegateWithIdentifier:@([self identifierForDelegate:instance])
webViewIdentifier:webViewIdentifier
error:FWFNSErrorDataFromNSError(error)
completion:completion];
}
- (void)didFailProvisionalNavigationForDelegate:(FWFNavigationDelegate *)instance
webView:(WKWebView *)webView
error:(NSError *)error
completion:(void (^)(FlutterError *_Nullable))completion {
NSNumber *webViewIdentifier =
@([self.instanceManager identifierWithStrongReferenceForInstance:webView]);
[self
didFailProvisionalNavigationForDelegateWithIdentifier:@([self identifierForDelegate:instance])
webViewIdentifier:webViewIdentifier
error:FWFNSErrorDataFromNSError(error)
completion:completion];
}
- (void)webViewWebContentProcessDidTerminateForDelegate:(FWFNavigationDelegate *)instance
webView:(WKWebView *)webView
completion:
(void (^)(FlutterError *_Nullable))completion {
NSNumber *webViewIdentifier =
@([self.instanceManager identifierWithStrongReferenceForInstance:webView]);
[self webViewWebContentProcessDidTerminateForDelegateWithIdentifier:
@([self identifierForDelegate:instance])
webViewIdentifier:webViewIdentifier
completion:completion];
}
@end
@implementation FWFNavigationDelegate
- (instancetype)initWithBinaryMessenger:(id<FlutterBinaryMessenger>)binaryMessenger
instanceManager:(FWFInstanceManager *)instanceManager {
self = [super initWithBinaryMessenger:binaryMessenger instanceManager:instanceManager];
if (self) {
_navigationDelegateAPI =
[[FWFNavigationDelegateFlutterApiImpl alloc] initWithBinaryMessenger:binaryMessenger
instanceManager:instanceManager];
}
return self;
}
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation {
[self.navigationDelegateAPI didFinishNavigationForDelegate:self
webView:webView
URL:webView.URL.absoluteString
completion:^(FlutterError *error) {
NSAssert(!error, @"%@", error);
}];
}
- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(WKNavigation *)navigation {
[self.navigationDelegateAPI didStartProvisionalNavigationForDelegate:self
webView:webView
URL:webView.URL.absoluteString
completion:^(FlutterError *error) {
NSAssert(!error, @"%@", error);
}];
}
- (void)webView:(WKWebView *)webView
decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction
decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {
[self.navigationDelegateAPI
decidePolicyForNavigationActionForDelegate:self
webView:webView
navigationAction:navigationAction
completion:^(FWFWKNavigationActionPolicyEnumData *policy,
FlutterError *error) {
NSAssert(!error, @"%@", error);
decisionHandler(
FWFWKNavigationActionPolicyFromEnumData(policy));
}];
}
- (void)webView:(WKWebView *)webView
didFailNavigation:(WKNavigation *)navigation
withError:(NSError *)error {
[self.navigationDelegateAPI didFailNavigationForDelegate:self
webView:webView
error:error
completion:^(FlutterError *error) {
NSAssert(!error, @"%@", error);
}];
}
- (void)webView:(WKWebView *)webView
didFailProvisionalNavigation:(WKNavigation *)navigation
withError:(NSError *)error {
[self.navigationDelegateAPI didFailProvisionalNavigationForDelegate:self
webView:webView
error:error
completion:^(FlutterError *error) {
NSAssert(!error, @"%@", error);
}];
}
- (void)webViewWebContentProcessDidTerminate:(WKWebView *)webView {
[self.navigationDelegateAPI
webViewWebContentProcessDidTerminateForDelegate:self
webView:webView
completion:^(FlutterError *error) {
NSAssert(!error, @"%@", error);
}];
}
@end
@interface FWFNavigationDelegateHostApiImpl ()
// 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 FWFNavigationDelegateHostApiImpl
- (instancetype)initWithBinaryMessenger:(id<FlutterBinaryMessenger>)binaryMessenger
instanceManager:(FWFInstanceManager *)instanceManager {
self = [self init];
if (self) {
_binaryMessenger = binaryMessenger;
_instanceManager = instanceManager;
}
return self;
}
- (FWFNavigationDelegate *)navigationDelegateForIdentifier:(NSNumber *)identifier {
return (FWFNavigationDelegate *)[self.instanceManager instanceForIdentifier:identifier.longValue];
}
- (void)createWithIdentifier:(nonnull NSNumber *)identifier
error:(FlutterError *_Nullable __autoreleasing *_Nonnull)error {
FWFNavigationDelegate *navigationDelegate =
[[FWFNavigationDelegate alloc] initWithBinaryMessenger:self.binaryMessenger
instanceManager:self.instanceManager];
[self.instanceManager addDartCreatedInstance:navigationDelegate
withIdentifier:identifier.longValue];
}
@end