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DropTarget.h
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53 lines (42 loc) · 1.64 KB
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// Copyright (C) Microsoft Corporation. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.s
#pragma once
class IDropTargetHelper;
class ViewComponent;
class DropTarget : public Microsoft::WRL::RuntimeClass<
Microsoft::WRL::RuntimeClassFlags<Microsoft::WRL::ClassicCom>,
IDropTarget>
{
public:
DropTarget();
virtual ~DropTarget();
// Initialize the drop target by associating it with the given HWND.
void Init(
HWND window, ViewComponent* viewComponent,
ICoreWebView2ExperimentalCompositionController3* webViewExperimentalCompositionController3);
// IDropTarget implementation:
HRESULT __stdcall DragEnter(IDataObject* dataObject,
DWORD keyState,
POINTL cursorPosition,
DWORD* effect) override;
HRESULT __stdcall DragOver(DWORD keyState,
POINTL cursor_position,
DWORD* effect) override;
HRESULT __stdcall DragLeave() override;
HRESULT __stdcall Drop(IDataObject* dataObject,
DWORD keyState,
POINTL cursorPosition,
DWORD* effect) override;
private:
ViewComponent* m_viewComponent = nullptr;
// Returns the hosting HWND.
HWND GetHWND() { return m_window; }
wil::com_ptr<IDropTargetHelper> DropHelper();
wil::com_ptr<IDropTargetHelper> m_dropTargetHelper;
// The HWND of the source. This HWND is used to determine coordinates for
// mouse events that are sent to the renderer notifying various drag states.
HWND m_window;
wil::com_ptr<ICoreWebView2ExperimentalCompositionController3>
m_webViewExperimentalCompositionController3;
};