86 lines
3.2 KiB
C++
86 lines
3.2 KiB
C++
/*
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* Copyright (C) 2011 Google Inc. All rights reserved.
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* Copyright (C) 2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "ContextDestructionObserver.h"
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#include "DataTransfer.h"
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#include "ExceptionOr.h"
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#include "ScriptWrappable.h"
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#include <wtf/Forward.h>
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#include <wtf/Ref.h>
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#include <wtf/RefCounted.h>
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#include <wtf/WeakPtr.h>
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namespace WebCore {
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class DataTransferItem;
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class File;
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class DataTransferItemList final : public ScriptWrappable, public ContextDestructionObserver, public CanMakeWeakPtr<DataTransferItemList> {
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WTF_MAKE_NONCOPYABLE(DataTransferItemList);
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WTF_MAKE_ISO_ALLOCATED(DataTransferItemList);
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public:
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DataTransferItemList(Document&, DataTransfer&);
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~DataTransferItemList();
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// DataTransfer owns DataTransferItemList, and DataTransfer is kept alive as long as DataTransferItemList is alive.
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void ref() { m_dataTransfer.ref(); }
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void deref() { m_dataTransfer.deref(); }
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DataTransfer& dataTransfer() { return m_dataTransfer; }
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// DOM API
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unsigned length() const;
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RefPtr<DataTransferItem> item(unsigned index);
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ExceptionOr<RefPtr<DataTransferItem>> add(const String& data, const String& type);
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RefPtr<DataTransferItem> add(Ref<File>&&);
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ExceptionOr<void> remove(unsigned index);
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void clear();
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void didClearStringData(const String& type);
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void didSetStringData(const String& type);
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bool hasItems() const { return m_items.has_value(); }
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const Vector<Ref<DataTransferItem>>& items() const
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{
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ASSERT(m_items);
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return *m_items;
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}
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private:
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Vector<Ref<DataTransferItem>>& ensureItems() const;
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Document* document() const;
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DataTransfer& m_dataTransfer;
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mutable std::optional<Vector<Ref<DataTransferItem>>> m_items;
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};
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} // namespace WebCore
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