Tools/TestWebKitAPI/cocoa/TestUIDelegate.mm

/*
 * Copyright (C) 2020 Apple Inc. All rights reserved.
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#import "config.h"
#import "TestUIDelegate.h"

#import "Utilities.h"
#import <WebKit/WKWebViewPrivateForTesting.h>
#import <wtf/RetainPtr.h>

@implementation TestUIDelegate

- (void)webView:(WKWebView *)webView runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(void))completionHandler
{
    if (_runJavaScriptAlertPanelWithMessage)
        _runJavaScriptAlertPanelWithMessage(webView, message, frame, completionHandler);
    else
        completionHandler();
}

- (NSString *)waitForAlert
{
    EXPECT_FALSE(self.runJavaScriptAlertPanelWithMessage);

    __block bool finished = false;
    __block RetainPtr<NSString> result;
    self.runJavaScriptAlertPanelWithMessage = ^(WKWebView *, NSString *message, WKFrameInfo *, void (^completionHandler)(void)) {
        result = message;
        finished = true;
        completionHandler();
    };

    TestWebKitAPI::Util::run(&finished);

    self.runJavaScriptAlertPanelWithMessage = nil;
    return result.autorelease();
}

@end

@implementation WKWebView (TestUIDelegateExtras)

- (NSString *)_test_waitForAlert
{
    EXPECT_FALSE(self.UIDelegate);
    auto uiDelegate = adoptNS([TestUIDelegate new]);
    self.UIDelegate = uiDelegate.get();
    NSString *alert = [uiDelegate waitForAlert];
    self.UIDelegate = nil;
    return alert;
}

@end