/* * Copyright (C) 2019 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. ``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 * 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 "MediaPlayerEnums.h" #include <wtf/HashMap.h> #include <wtf/HashSet.h> #include <wtf/Optional.h> #include <wtf/Vector.h> #include <wtf/text/StringHash.h> namespace WebCore { class ContentType; class MIMETypeCache { public: MIMETypeCache() = default; virtual ~MIMETypeCache() = default; bool supportsContainerType(const String&); MediaPlayerEnums::SupportsType canDecodeType(const String&); HashSet<String, ASCIICaseInsensitiveHash>& supportedTypes(); WEBCORE_EXPORT void addSupportedTypes(const Vector<String>&); void addSupportedType(const String&); virtual bool isUnsupportedContainerType(const String&) { return false; } virtual bool isAvailable() const { return true; } bool isEmpty() const { return m_supportedTypes && !m_supportedTypes->isEmpty(); } protected: virtual bool canDecodeTypeInternal(const ContentType&) { return false; } virtual void initializeCache(HashSet<String, ASCIICaseInsensitiveHash>&) { } virtual const HashSet<String, ASCIICaseInsensitiveHash>& staticContainerTypeList(); private: MediaPlayerEnums::SupportsType canDecodeTypePrivate(const String&); Optional<HashSet<String, ASCIICaseInsensitiveHash>> m_supportedTypes; Optional<HashMap<String, MediaPlayerEnums::SupportsType, ASCIICaseInsensitiveHash>> m_cachedResults; }; } // namespace WebCore