1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/windows/nsNativeDragSource.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,66 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +#ifndef _nsNativeDragSource_h_
1.9 +#define _nsNativeDragSource_h_
1.10 +
1.11 +#include "nscore.h"
1.12 +#include "nsIDOMDataTransfer.h"
1.13 +#include "nsCOMPtr.h"
1.14 +#include <ole2.h>
1.15 +#include <oleidl.h>
1.16 +#include "mozilla/Attributes.h"
1.17 +
1.18 +//class nsIDragSource;
1.19 +
1.20 +/*
1.21 + * nsNativeDragSource implements the IDropSource interface and gets
1.22 + * most of its behavior from the associated adapter (m_dragDrop).
1.23 + */
1.24 +class nsNativeDragSource MOZ_FINAL : public IDropSource
1.25 +{
1.26 +public:
1.27 +
1.28 + // construct an nsNativeDragSource referencing adapter
1.29 + // nsNativeDragSource(nsIDragSource * adapter);
1.30 + nsNativeDragSource(nsIDOMDataTransfer* aDataTransfer);
1.31 + ~nsNativeDragSource();
1.32 +
1.33 + // IUnknown methods - see iunknown.h for documentation
1.34 +
1.35 + STDMETHODIMP QueryInterface(REFIID, void**);
1.36 + STDMETHODIMP_(ULONG) AddRef();
1.37 + STDMETHODIMP_(ULONG) Release();
1.38 +
1.39 + // IDropSource methods - see idropsrc.h for documentation
1.40 +
1.41 + // Return DRAGDROP_S_USEDEFAULTCURSORS if this object lets OLE provide
1.42 + // default cursors, otherwise return NOERROR. This method gets called in
1.43 + // response to changes that the target makes to dEffect (DragEnter,
1.44 + // DragOver).
1.45 + STDMETHODIMP GiveFeedback(DWORD dEffect);
1.46 +
1.47 + // This method gets called if there is any change in the mouse or key
1.48 + // state. Return DRAGDROP_S_CANCEL to stop the drag, DRAGDROP_S_DROP
1.49 + // to execute the drop, otherwise NOERROR.
1.50 + STDMETHODIMP QueryContinueDrag(BOOL fESC, DWORD grfKeyState);
1.51 +
1.52 + bool UserCancelled() { return mUserCancelled; }
1.53 +
1.54 +protected:
1.55 + // Reference count
1.56 + ULONG m_cRef;
1.57 +
1.58 + // Data object, hold information about cursor state
1.59 + nsCOMPtr<nsIDOMDataTransfer> mDataTransfer;
1.60 +
1.61 + // Custom drag cursor
1.62 + HCURSOR m_hCursor;
1.63 +
1.64 + // true if the user cancelled the drag by pressing escape
1.65 + bool mUserCancelled;
1.66 +};
1.67 +
1.68 +#endif // _nsNativeDragSource_h_
1.69 +
