Source/WebCore/Modules/fetch/DOMWindowFetch.cpp

/*
 * Copyright (C) 2016 Canon Inc.
 * Copyright (C) 2017 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 required to be 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.
 * 3.  Neither the name of Canon Inc. nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY CANON 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 CANON INC. AND 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
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "DOMWindowFetch.h"

#include "DOMWindow.h"
#include "Document.h"
#include "FetchResponse.h"
#include "JSFetchResponse.h"

namespace WebCore {

using FetchResponsePromise = DOMPromiseDeferred<IDLInterface<FetchResponse>>;

void DOMWindowFetch::fetch(DOMWindow& window, FetchRequest::Info&& input, FetchRequest::Init&& init, Ref<DeferredPromise>&& deferred)
{
    FetchResponsePromise promise = WTFMove(deferred);

    auto* document = window.document();
    if (!document) {
        promise.reject(InvalidStateError);
        return;
    }

    auto request = FetchRequest::create(*document, WTFMove(input), WTFMove(init));
    if (request.hasException()) {
        promise.reject(request.releaseException());
        return;
    }

    FetchResponse::fetch(*document, request.releaseReturnValue().get(), [promise = WTFMove(promise)](ExceptionOr<FetchResponse&>&& result) mutable {
        promise.settle(WTFMove(result));
    });
}

} // namespace WebCore