/* * Copyright (C) 2009-2017 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 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. */ #pragma once #include <wtf/Forward.h> #include <wtf/Noncopyable.h> #include <wtf/RetainPtr.h> OBJC_CLASS WebPreviewLoader; namespace WebCore { class PreviewLoaderClient; class ResourceLoader; class ResourceResponse; class SharedBuffer; class PreviewLoader { WTF_MAKE_NONCOPYABLE(PreviewLoader); public: WEBCORE_EXPORT static bool shouldCreateForMIMEType(const String&); static std::unique_ptr<PreviewLoader> create(ResourceLoader&, const ResourceResponse&); ~PreviewLoader(); bool didReceiveData(const char* data, unsigned length); bool didReceiveBuffer(const SharedBuffer&); bool didFinishLoading(); void didFail(); WEBCORE_EXPORT static void setClientForTesting(RefPtr<PreviewLoaderClient>&&); private: friend std::unique_ptr<PreviewLoader> std::make_unique<PreviewLoader>(ResourceLoader&, const ResourceResponse&); PreviewLoader(ResourceLoader&, const ResourceResponse&); RetainPtr<WebPreviewLoader> m_previewLoader; bool m_finishedLoadingDataIntoConverter { false }; }; } // namespace WebCore