/* * Copyright (C) 2011 Google Inc. All rights reserved. * 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 * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * Neither the name of Google 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT * OWNER 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 "DataTransfer.h" #include "ExceptionOr.h" #include "ScriptWrappable.h" #include <wtf/Forward.h> #include <wtf/Ref.h> #include <wtf/RefCounted.h> #include <wtf/WeakPtr.h> namespace WebCore { class DataTransferItem; class File; class DataTransferItemList final : public ScriptWrappable, public CanMakeWeakPtr<DataTransferItemList> { WTF_MAKE_NONCOPYABLE(DataTransferItemList); WTF_MAKE_ISO_ALLOCATED(DataTransferItemList); public: DataTransferItemList(DataTransfer&); ~DataTransferItemList(); // DataTransfer owns DataTransferItemList, and DataTransfer is kept alive as long as DataTransferItemList is alive. void ref() { m_dataTransfer.ref(); } void deref() { m_dataTransfer.deref(); } DataTransfer& dataTransfer() { return m_dataTransfer; } // DOM API unsigned length() const; RefPtr<DataTransferItem> item(unsigned index); ExceptionOr<RefPtr<DataTransferItem>> add(const String& data, const String& type); RefPtr<DataTransferItem> add(Ref<File>&&); ExceptionOr<void> remove(unsigned index); void clear(); void didClearStringData(const String& type); void didSetStringData(const String& type); bool hasItems() const { return m_items.hasValue(); } const Vector<Ref<DataTransferItem>>& items() const { ASSERT(m_items); return *m_items; } private: Vector<Ref<DataTransferItem>>& ensureItems() const; DataTransfer& m_dataTransfer; mutable Optional<Vector<Ref<DataTransferItem>>> m_items; }; } // namespace WebCore