From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- widget/windows/nsNativeDragSource.h | 66 +++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 widget/windows/nsNativeDragSource.h (limited to 'widget/windows/nsNativeDragSource.h') diff --git a/widget/windows/nsNativeDragSource.h b/widget/windows/nsNativeDragSource.h new file mode 100644 index 000000000..19d127599 --- /dev/null +++ b/widget/windows/nsNativeDragSource.h @@ -0,0 +1,66 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ +#ifndef _nsNativeDragSource_h_ +#define _nsNativeDragSource_h_ + +#include "nscore.h" +#include "nsIDOMDataTransfer.h" +#include "nsCOMPtr.h" +#include +#include +#include "mozilla/Attributes.h" + +//class nsIDragSource; + +/* + * nsNativeDragSource implements the IDropSource interface and gets + * most of its behavior from the associated adapter (m_dragDrop). + */ +class nsNativeDragSource final : public IDropSource +{ +public: + + // construct an nsNativeDragSource referencing adapter + // nsNativeDragSource(nsIDragSource * adapter); + nsNativeDragSource(nsIDOMDataTransfer* aDataTransfer); + ~nsNativeDragSource(); + + // IUnknown methods - see iunknown.h for documentation + + STDMETHODIMP QueryInterface(REFIID, void**); + STDMETHODIMP_(ULONG) AddRef(); + STDMETHODIMP_(ULONG) Release(); + + // IDropSource methods - see idropsrc.h for documentation + + // Return DRAGDROP_S_USEDEFAULTCURSORS if this object lets OLE provide + // default cursors, otherwise return NOERROR. This method gets called in + // response to changes that the target makes to dEffect (DragEnter, + // DragOver). + STDMETHODIMP GiveFeedback(DWORD dEffect); + + // This method gets called if there is any change in the mouse or key + // state. Return DRAGDROP_S_CANCEL to stop the drag, DRAGDROP_S_DROP + // to execute the drop, otherwise NOERROR. + STDMETHODIMP QueryContinueDrag(BOOL fESC, DWORD grfKeyState); + + bool UserCancelled() { return mUserCancelled; } + +protected: + // Reference count + ULONG m_cRef; + + // Data object, hold information about cursor state + nsCOMPtr mDataTransfer; + + // Custom drag cursor + HCURSOR m_hCursor; + + // true if the user cancelled the drag by pressing escape + bool mUserCancelled; +}; + +#endif // _nsNativeDragSource_h_ + -- cgit v1.2.3