/*
* Copyright (C) 2009 Google 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
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*/
#ifndef WebDragData_h
#define WebDragData_h
#include "WebCommon.h"
#include "WebData.h"
#include "WebString.h"
#include "WebURL.h"
namespace WebCore { class DataObject; }
namespace blink {
class WebDragDataPrivate;
template <typename T> class WebVector;
// Holds data that may be exchanged through a drag-n-drop operation. It is
// inexpensive to copy a WebDragData object.
class WebDragData {
public:
struct Item {
enum StorageType {
// String data with an associated MIME type. Depending on the MIME type, there may be
// optional metadata attributes as well.
StorageTypeString,
// Stores the name of one file being dragged into the renderer.
StorageTypeFilename,
// An image being dragged out of the renderer. Contains a buffer holding the image data
// as well as the suggested name for saving the image to.
StorageTypeBinaryData,
};
StorageType storageType;
// Only valid when storageType == StorageTypeString.
WebString stringType;
WebString stringData;
// Only valid when storageType == StorageTypeFilename.
WebString filenameData;
WebString displayNameData;
// Only valid when storageType == StorageTypeBinaryData.
WebData binaryData;
// Title associated with a link when stringType == "text/uri-list".
// Filename when storageType == StorageTypeBinaryData.
WebString title;
// Only valid when stringType == "text/html".
WebURL baseURL;
};
WebDragData() { }
WebDragData(const WebDragData& object) { assign(object); }
WebDragData& operator=(const WebDragData& object)
{
assign(object);
return *this;
}
~WebDragData() { reset(); }
bool isNull() const { return m_private.isNull(); }
BLINK_EXPORT void initialize();
BLINK_EXPORT void reset();
BLINK_EXPORT void assign(const WebDragData&);
BLINK_EXPORT WebVector<Item> items() const;
BLINK_EXPORT void setItems(const WebVector<Item>&);
BLINK_EXPORT void addItem(const Item&);
BLINK_EXPORT WebString filesystemId() const;
BLINK_EXPORT void setFilesystemId(const WebString&);
#if BLINK_IMPLEMENTATION
explicit WebDragData(const PassRefPtrWillBeRawPtr<WebCore::DataObject>&);
WebDragData& operator=(const PassRefPtrWillBeRawPtr<WebCore::DataObject>&);
WebCore::DataObject* getValue() const;
#endif
private:
void ensureMutable();
WebPrivatePtr<WebCore::DataObject> m_private;
};
} // namespace blink
#endif