1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/base/base_drag_source.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,46 @@
1.4 +// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#ifndef BASE_BASE_DRAG_SOURCE_H_
1.9 +#define BASE_BASE_DRAG_SOURCE_H_
1.10 +
1.11 +#include <objidl.h>
1.12 +
1.13 +#include "base/basictypes.h"
1.14 +
1.15 +///////////////////////////////////////////////////////////////////////////////
1.16 +//
1.17 +// BaseDragSource
1.18 +//
1.19 +// A base IDropSource implementation. Handles notifications sent by an active
1.20 +// drag-drop operation as the user mouses over other drop targets on their
1.21 +// system. This object tells Windows whether or not the drag should continue,
1.22 +// and supplies the appropriate cursors.
1.23 +//
1.24 +class BaseDragSource : public IDropSource {
1.25 + public:
1.26 + BaseDragSource();
1.27 + virtual ~BaseDragSource() { }
1.28 +
1.29 + // IDropSource implementation:
1.30 + HRESULT __stdcall QueryContinueDrag(BOOL escape_pressed, DWORD key_state);
1.31 + HRESULT __stdcall GiveFeedback(DWORD effect);
1.32 +
1.33 + // IUnknown implementation:
1.34 + HRESULT __stdcall QueryInterface(const IID& iid, void** object);
1.35 + ULONG __stdcall AddRef();
1.36 + ULONG __stdcall Release();
1.37 +
1.38 + protected:
1.39 + virtual void OnDragSourceCancel() { }
1.40 + virtual void OnDragSourceDrop() { }
1.41 + virtual void OnDragSourceMove() { }
1.42 +
1.43 + private:
1.44 + LONG ref_count_;
1.45 +
1.46 + DISALLOW_EVIL_CONSTRUCTORS(BaseDragSource);
1.47 +};
1.48 +
1.49 +#endif // BASE_BASE_DRAG_SOURCE_H_
