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fix(WKWebview): Fixed non-working iOS alert. (#188)

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npm-ued 2018-12-14 18:18:48 +08:00 committed by Thibault Malbranche
parent 42706fc733
commit 41d9bdcce4
1 changed files with 83 additions and 0 deletions
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83
ios/RNCWKWebView.m
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@ -8,6 +8,7 @@
#import "RNCWKWebView.h"
#import <React/RCTConvert.h>
#import <React/RCTAutoInsetsProtocol.h>
#import <UIKit/UIKit.h>
#import "objc/runtime.h"
@ -339,6 +340,88 @@ static NSString *const MessageHanderName = @"ReactNative";
#pragma mark - WKNavigationDelegate methods
/**
* alert
*/
- (void)webView:(WKWebView *)webView runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(void))completionHandler
{
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"" message:message preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
completionHandler();
}]];
[[self topViewController] presentViewController:alert animated:YES completion:NULL];
}
/**
* confirm
*/
- (void)webView:(WKWebView *)webView runJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(BOOL))completionHandler{
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"" message:message preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
completionHandler(YES);
}]];
[alert addAction:[UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
completionHandler(NO);
}]];
[[self topViewController] presentViewController:alert animated:YES completion:NULL];
}
/**
* prompt
*/
- (void)webView:(WKWebView *)webView runJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(NSString *)defaultText initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(NSString *))completionHandler{
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"" message:prompt preferredStyle:UIAlertControllerStyleAlert];
[alert addTextFieldWithConfigurationHandler:^(UITextField *textField) {
textField.textColor = [UIColor lightGrayColor];
textField.placeholder = defaultText;
}];
[alert addAction:[UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
completionHandler([[alert.textFields lastObject] text]);
}]];
[[self topViewController] presentViewController:alert animated:YES completion:NULL];
}
/**
* topViewController
*/
-(UIViewController *)topViewController{
   UIViewController *controller = [self topViewControllerWithRootViewController:[self getCurrentWindow].rootViewController];
   return controller;
}
/**
* topViewControllerWithRootViewController
*/
-(UIViewController *)topViewControllerWithRootViewController:(UIViewController *)viewController{
if (viewController==nil) return nil;
if (viewController.presentedViewController!=nil) {
return [self topViewControllerWithRootViewController:viewController.presentedViewController];
} else if ([viewController isKindOfClass:[UITabBarController class]]){
return [self topViewControllerWithRootViewController:[(UITabBarController *)viewController selectedViewController]];
} else if ([viewController isKindOfClass:[UINavigationController class]]){
return [self topViewControllerWithRootViewController:[(UINavigationController *)viewController visibleViewController]];
} else {
return viewController;
}
}
/**
* getCurrentWindow
*/
-(UIWindow *)getCurrentWindow{
UIWindow *window = [UIApplication sharedApplication].keyWindow;
if (window.windowLevel!=UIWindowLevelNormal) {
for (UIWindow *wid in [UIApplication sharedApplication].windows) {
if (window.windowLevel==UIWindowLevelNormal) {
window = wid;
break;
}
}
}
return window;
}
/**
* Decides whether to allow or cancel a navigation.
* @see https://fburl.com/42r9fxob