如何在 macOS 应用程序中的 WKWebView 中打开查找器？

问：

在 macOS 中，我们的要求是在 Web 视图中单击“上传文件”时打开 Finder。当我在Safari中打开相同的URL链接时，它可以工作，但是在macOS应用程序中Open Finder中，它没有被触发。

我使用了委托函数，但它没有被触发。WKWebKit

- (void)webView:(WKWebView *)webView 
decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction 
decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler;

我也试过，但没有运气。WKNavigationDelegate

webView:didStartProvisionalNavigation:
webView:didCommitNavigation:
webView:didFinishNavigation:
webView:didFailNavigation:withError:
webView:decidePolicyForNavigationAction:decisionHandler: 

还有功能。WKUIDelegate

webView:runJavaScriptAlertPanelWithMessage:initiatedByFrame:completionHandler:
webView:runJavaScriptConfirmPanelWithMessage:initiatedByFrame:completionHandler:
webView:runJavaScriptTextInputPanelWithPrompt:defaultText:initiatedByFrame:completionHandler:
webView:createWebViewWithConfiguration:forNavigationAction:windowFeatures:

这是我尝试过的代码，

@interface ViewController() <WKUIDelegate, WKNavigationDelegate>
@property (nonatomic, assign) BOOL isFinderOpen;

@end

@implementation ViewController

(IBAction)buttonClick:(id)sender {
 NSString *urlAddress = [NSString stringWithFormat:@"https://www.diawi.com/"];
 [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlAddress]]];
}

- (void)webView:(WKWebView *)webView runOpenPanelWithParameters:(WKOpenPanelParameters *)parameters initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(NSArray<NSURL *> * _Nullable))completionHandler{
    
    if (!self.isFinderOpen) {
        self.isFinderOpen = YES;
        [self.webView.configuration.preferences setValue:@TRUE forKey:@"allowFileAccessFromFileURLs"];
        NSOpenPanel *openPanel = [NSOpenPanel openPanel];
        [openPanel setCanChooseFiles:YES];
        [openPanel beginWithCompletionHandler:^(NSInteger result) {
            self.isFinderOpen = NO;
            if (result == NSModalResponseOK) {
                NSURL *url = [openPanel URL];
                if (url) {
                    NSLog(@"%@",url);
                }
            }
            else if (result == NSModalResponseCancel) {
                NSLog(@"nil");
            }
        }];
    }    
}

我错过了什么吗？