widget/windows/nsNativeDragSource.h@ac0c01689b40
widget/windows/nsNativeDragSource.h
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5 #ifndef _nsNativeDragSource_h_
6 #define _nsNativeDragSource_h_
8 #include "nscore.h"
9 #include "nsIDOMDataTransfer.h"
10 #include "nsCOMPtr.h"
11 #include <ole2.h>
12 #include <oleidl.h>
13 #include "mozilla/Attributes.h"
15 //class nsIDragSource;
17 /*
18 * nsNativeDragSource implements the IDropSource interface and gets
19 * most of its behavior from the associated adapter (m_dragDrop).
20 */
21 class nsNativeDragSource MOZ_FINAL : public IDropSource
22 {
23 public:
25 // construct an nsNativeDragSource referencing adapter
26 // nsNativeDragSource(nsIDragSource * adapter);
27 nsNativeDragSource(nsIDOMDataTransfer* aDataTransfer);
28 ~nsNativeDragSource();
30 // IUnknown methods - see iunknown.h for documentation
32 STDMETHODIMP QueryInterface(REFIID, void**);
33 STDMETHODIMP_(ULONG) AddRef();
34 STDMETHODIMP_(ULONG) Release();
36 // IDropSource methods - see idropsrc.h for documentation
38 // Return DRAGDROP_S_USEDEFAULTCURSORS if this object lets OLE provide
39 // default cursors, otherwise return NOERROR. This method gets called in
40 // response to changes that the target makes to dEffect (DragEnter,
41 // DragOver).
42 STDMETHODIMP GiveFeedback(DWORD dEffect);
44 // This method gets called if there is any change in the mouse or key
45 // state. Return DRAGDROP_S_CANCEL to stop the drag, DRAGDROP_S_DROP
46 // to execute the drop, otherwise NOERROR.
47 STDMETHODIMP QueryContinueDrag(BOOL fESC, DWORD grfKeyState);
49 bool UserCancelled() { return mUserCancelled; }
51 protected:
52 // Reference count
53 ULONG m_cRef;
55 // Data object, hold information about cursor state
56 nsCOMPtr<nsIDOMDataTransfer> mDataTransfer;
58 // Custom drag cursor
59 HCURSOR m_hCursor;
61 // true if the user cancelled the drag by pressing escape
62 bool mUserCancelled;
63 };
65 #endif // _nsNativeDragSource_h_
