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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-ws-lib
* Created on: 22 июл. 2022 г.
*
* lsp-ws-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-ws-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-ws-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef PRIVATE_WIN_DND_H_
#define PRIVATE_WIN_DND_H_
#include <lsp-plug.in/common/types.h>
#ifdef PLATFORM_WINDOWS
#include <lsp-plug.in/lltl/darray.h>
#include <lsp-plug.in/lltl/parray.h>
#include <lsp-plug.in/lltl/pphash.h>
#include <lsp-plug.in/ws/IDataSink.h>
#include <private/win/com.h>
#include <oleidl.h>
namespace lsp
{
namespace ws
{
namespace win
{
class WinWindow;
class LSP_HIDDEN_MODIFIER WinDNDTarget: public IDropTarget
{
LSP_IUNKNOWN_IFACE
private:
WinWindow *pWindow;
IDataSink *pDataSink;
drag_t enAction;
bool bInternal;
rectangle_t sRect;
lltl::parray<char> vFormatNames;
lltl::darray<FORMATETC> vFormats;
lltl::pphash<char, FORMATETC> vFormatMapping;
protected:
void release_resources();
void reset_confirm_state();
bool read_formats(IDataObject *pDataObj);
void create_builtin_format_mapping(FORMATETC *fmt, const char * const * mimes);
void create_custom_format_mapping(FORMATETC *fmt, const char *name);
DWORD get_drop_effect();
void translate_point(POINT & dpt, const POINTL & pt);
public:
explicit WinDNDTarget(WinWindow *wnd);
virtual ~WinDNDTarget();
public: // IDropTarget
virtual HRESULT STDMETHODCALLTYPE DragEnter(IDataObject *pDataObj, DWORD grfKeyState, POINTL pt, DWORD *pdwEffect) override;
virtual HRESULT STDMETHODCALLTYPE DragOver(DWORD grfKeyState, POINTL pt, DWORD *pdwEffect) override;
virtual HRESULT STDMETHODCALLTYPE DragLeave() override;
virtual HRESULT STDMETHODCALLTYPE Drop(IDataObject *pDataObj, DWORD grfKeyState, POINTL pt, DWORD *pdwEffect) override;
public:
const char *const * formats() const;
status_t accept_drag(IDataSink *sink, drag_t action, const rectangle_t *r);
status_t reject_drag();
};
}
}
}
#endif /* PLATFORM_WINDOWS */
#endif /* PRIVATE_WIN_DND_H_ */
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