godot/platform/windows/drop_target_windows.h
2024-10-24 19:43:30 +03:00

78 lines
3.9 KiB
C++

/**************************************************************************/
/* drop_target_windows.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef DROP_TARGET_WINDOWS_H
#define DROP_TARGET_WINDOWS_H
#include "display_server_windows.h"
#include <shlobj.h>
// Silence warning due to a COM API weirdness.
#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
#endif
// https://learn.microsoft.com/en-us/windows/win32/api/ole2/nf-ole2-dodragdrop#remarks
class DropTargetWindows : public IDropTarget {
LONG ref_count;
DisplayServerWindows::WindowData *window_data = nullptr;
CLIPFORMAT cf_filedescriptor = 0;
CLIPFORMAT cf_filecontents = 0;
String tmp_path;
bool is_valid_filedescriptor();
HRESULT handle_hdrop_format(Vector<String> *p_files, IDataObject *pDataObj);
HRESULT handle_filedescriptor_format(Vector<String> *p_files, IDataObject *pDataObj);
HRESULT save_as_file(const String &p_out_dir, FILEDESCRIPTORW *p_file_desc, IDataObject *pDataObj, int p_file_idx);
public:
DropTargetWindows(DisplayServerWindows::WindowData *p_window_data);
virtual ~DropTargetWindows() {}
// IUnknown
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject) override;
ULONG STDMETHODCALLTYPE AddRef() override;
ULONG STDMETHODCALLTYPE Release() override;
// IDropTarget
HRESULT STDMETHODCALLTYPE DragEnter(IDataObject *pDataObj, DWORD grfKeyState, POINTL pt, DWORD *pdwEffect) override;
HRESULT STDMETHODCALLTYPE DragOver(DWORD grfKeyState, POINTL pt, DWORD *pdwEffect) override;
HRESULT STDMETHODCALLTYPE DragLeave() override;
HRESULT STDMETHODCALLTYPE Drop(IDataObject *pDataObj, DWORD grfKeyState, POINTL pt, DWORD *pdwEffect) override;
};
#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic pop
#endif
#endif // DROP_TARGET_WINDOWS_H