cef/tests/cefclient/browser/osr_dragdrop_win.h

196 lines
6.8 KiB
C++

// Copyright (c) 2014 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
#ifndef CEF_TESTS_CEFCLIENT_BROWSER_OSR_DRAGDROP_WIN_H_
#define CEF_TESTS_CEFCLIENT_BROWSER_OSR_DRAGDROP_WIN_H_
#pragma once
// When generating projects with CMake the CEF_USE_ATL value will be defined
// automatically if using a supported Visual Studio version. Pass -DUSE_ATL=OFF
// to the CMake command-line to disable use of ATL.
// Uncomment this line to manually enable ATL support.
// #define CEF_USE_ATL 1
#if defined(CEF_USE_ATL)
#include <atlcomcli.h>
#include <objidl.h>
#include <stdio.h>
#include "tests/cefclient/browser/osr_dragdrop_events.h"
namespace client {
#define DEFAULT_QUERY_INTERFACE(__Class) \
HRESULT __stdcall QueryInterface(const IID& iid, void** object) override { \
*object = nullptr; \
if (IsEqualIID(iid, IID_IUnknown)) { \
IUnknown* obj = this; \
*object = obj; \
} else if (IsEqualIID(iid, IID_##__Class)) { \
__Class* obj = this; \
*object = obj; \
} else { \
return E_NOINTERFACE; \
} \
AddRef(); \
return S_OK; \
}
#define IUNKNOWN_IMPLEMENTATION \
ULONG __stdcall AddRef() override { \
return ++ref_count_; \
} \
ULONG __stdcall Release() override { \
if (--ref_count_ == 0) { \
delete this; \
return 0U; \
} \
return ref_count_; \
} \
\
protected: \
ULONG ref_count_;
class DropTargetWin : public IDropTarget {
public:
static CComPtr<DropTargetWin> Create(OsrDragEvents* callback, HWND hWnd);
CefBrowserHost::DragOperationsMask StartDragging(
CefRefPtr<CefBrowser> browser,
CefRefPtr<CefDragData> drag_data,
CefRenderHandler::DragOperationsMask allowed_ops,
int x,
int y);
// IDropTarget implementation:
HRESULT __stdcall DragEnter(IDataObject* data_object,
DWORD key_state,
POINTL cursor_position,
DWORD* effect) override;
HRESULT __stdcall DragOver(DWORD key_state,
POINTL cursor_position,
DWORD* effect) override;
HRESULT __stdcall DragLeave() override;
HRESULT __stdcall Drop(IDataObject* data_object,
DWORD key_state,
POINTL cursor_position,
DWORD* effect) override;
DEFAULT_QUERY_INTERFACE(IDropTarget)
IUNKNOWN_IMPLEMENTATION
protected:
DropTargetWin(OsrDragEvents* callback, HWND hWnd)
: ref_count_(0), callback_(callback), hWnd_(hWnd) {}
virtual ~DropTargetWin() = default;
private:
OsrDragEvents* callback_;
HWND hWnd_;
CefRefPtr<CefDragData> current_drag_data_;
};
class DropSourceWin : public IDropSource {
public:
static CComPtr<DropSourceWin> Create();
// IDropSource implementation:
HRESULT __stdcall GiveFeedback(DWORD dwEffect) override;
HRESULT __stdcall QueryContinueDrag(BOOL fEscapePressed,
DWORD grfKeyState) override;
DEFAULT_QUERY_INTERFACE(IDropSource)
IUNKNOWN_IMPLEMENTATION
protected:
explicit DropSourceWin() : ref_count_(0) {}
virtual ~DropSourceWin() = default;
};
class DragEnumFormatEtc : public IEnumFORMATETC {
public:
static HRESULT CreateEnumFormatEtc(UINT cfmt,
FORMATETC* afmt,
IEnumFORMATETC** ppEnumFormatEtc);
//
// IEnumFormatEtc members
//
HRESULT __stdcall Next(ULONG celt,
FORMATETC* pFormatEtc,
ULONG* pceltFetched) override;
HRESULT __stdcall Skip(ULONG celt) override;
HRESULT __stdcall Reset() override;
HRESULT __stdcall Clone(IEnumFORMATETC** ppEnumFormatEtc) override;
//
// Construction / Destruction
//
DragEnumFormatEtc(FORMATETC* pFormatEtc, int nNumFormats);
virtual ~DragEnumFormatEtc();
static void DeepCopyFormatEtc(FORMATETC* dest, FORMATETC* source);
DEFAULT_QUERY_INTERFACE(IEnumFORMATETC)
IUNKNOWN_IMPLEMENTATION
private:
ULONG m_nIndex; // current enumerator index
ULONG m_nNumFormats; // number of FORMATETC members
FORMATETC* m_pFormatEtc; // array of FORMATETC objects
};
class DataObjectWin : public IDataObject {
public:
static CComPtr<DataObjectWin> Create(FORMATETC* fmtetc,
STGMEDIUM* stgmed,
int count);
// IDataObject memberS
HRESULT __stdcall GetDataHere(FORMATETC* pFormatEtc,
STGMEDIUM* pmedium) override;
HRESULT __stdcall QueryGetData(FORMATETC* pFormatEtc) override;
HRESULT __stdcall GetCanonicalFormatEtc(FORMATETC* pFormatEct,
FORMATETC* pFormatEtcOut) override;
HRESULT __stdcall SetData(FORMATETC* pFormatEtc,
STGMEDIUM* pMedium,
BOOL fRelease) override;
HRESULT __stdcall DAdvise(FORMATETC* pFormatEtc,
DWORD advf,
IAdviseSink*,
DWORD*) override;
HRESULT __stdcall DUnadvise(DWORD dwConnection) override;
HRESULT __stdcall EnumDAdvise(IEnumSTATDATA** ppEnumAdvise) override;
HRESULT __stdcall EnumFormatEtc(DWORD dwDirection,
IEnumFORMATETC** ppEnumFormatEtc) override;
HRESULT __stdcall GetData(FORMATETC* pFormatEtc, STGMEDIUM* pMedium) override;
DEFAULT_QUERY_INTERFACE(IDataObject)
IUNKNOWN_IMPLEMENTATION
protected:
int m_nNumFormats;
FORMATETC* m_pFormatEtc;
STGMEDIUM* m_pStgMedium;
static HGLOBAL DupGlobalMem(HGLOBAL hMem);
int LookupFormatEtc(FORMATETC* pFormatEtc);
explicit DataObjectWin(FORMATETC* fmtetc, STGMEDIUM* stgmed, int count);
virtual ~DataObjectWin() = default;
};
} // namespace client
#endif // defined(CEF_USE_ATL)
#endif // CEF_TESTS_CEFCLIENT_BROWSER_OSR_DRAGDROP_WIN_H_