/*
 * Copyright (C) 2022 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#import "config.h"

typedef void (^CallCompletionBlock)();

@interface PrintUIDelegate : NSObject <WKUIDelegate>

- (void)waitForPagination;

@end

@implementation PrintUIDelegate {
    bool _isDone;
}

- (void)callBlockAsync:(CallCompletionBlock)callCompletionBlock
{
    dispatch_async(dispatch_get_main_queue(), ^{
        callCompletionBlock();
    });
}

- (void)_webView:(WKWebView *)webView printFrame:(_WKFrameHandle *)frame pdfFirstPageSize:(CGSize)size completionHandler:(void (^)(void))completionHandler
{
    _isDone = false;
    CallCompletionBlock callCompletionBlock = ^{
        [webView _computePagesForPrinting:frame completionHandler:^{
            _isDone = true;
            completionHandler();
        }];
    };

    // Dispatch the completion handler asynchronously to ensure we don't block IPC in the web process in the unbounded sync IPC case.
    [self callBlockAsync:callCompletionBlock];
}

- (void)waitForPagination
{
    TestWebKitAPI::Util::run(&_isDone);
}

@end

TEST(Printing, PrintWithDelayedCompletion)
{
    auto configuration = adoptNS([WKWebViewConfiguration new]);
    auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:configuration.get()]);
    auto delegate = adoptNS([PrintUIDelegate new]);
    [webView setUIDelegate:delegate.get()];

    NSURLRequest *request = [NSURLRequest requestWithURL:[[NSBundle mainBundle] URLForResource:@"simple" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"]];
    [webView loadRequest:request];
    [webView _test_waitForDidFinishNavigation];

    [webView evaluateJavaScript:@"window.print()" completionHandler:nil];
    [delegate waitForPagination];
}