The Tor Browser / file comparison
comparison: widget/windows/nsNativeDragSource.cpp
widget/windows/nsNativeDragSource.cpp
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:fec4f4478cff |
|---|---|
| 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 | |
| 6 #include "nsNativeDragSource.h" | |
| 7 #include <stdio.h> | |
| 8 #include "nsISupportsImpl.h" | |
| 9 #include "nsString.h" | |
| 10 #include "nsIServiceManager.h" | |
| 11 #include "nsToolkit.h" | |
| 12 #include "nsWidgetsCID.h" | |
| 13 #include "nsIDragService.h" | |
| 14 | |
| 15 /* | |
| 16 * class nsNativeDragSource | |
| 17 */ | |
| 18 nsNativeDragSource::nsNativeDragSource(nsIDOMDataTransfer* aDataTransfer) : | |
| 19 m_cRef(0), | |
| 20 m_hCursor(nullptr), | |
| 21 mUserCancelled(false) | |
| 22 { | |
| 23 mDataTransfer = do_QueryInterface(aDataTransfer); | |
| 24 } | |
| 25 | |
| 26 nsNativeDragSource::~nsNativeDragSource() | |
| 27 { | |
| 28 } | |
| 29 | |
| 30 STDMETHODIMP | |
| 31 nsNativeDragSource::QueryInterface(REFIID riid, void** ppv) | |
| 32 { | |
| 33 *ppv=nullptr; | |
| 34 | |
| 35 if (IID_IUnknown==riid || IID_IDropSource==riid) | |
| 36 *ppv=this; | |
| 37 | |
| 38 if (nullptr!=*ppv) { | |
| 39 ((LPUNKNOWN)*ppv)->AddRef(); | |
| 40 return S_OK; | |
| 41 } | |
| 42 | |
| 43 return E_NOINTERFACE; | |
| 44 } | |
| 45 | |
| 46 STDMETHODIMP_(ULONG) | |
| 47 nsNativeDragSource::AddRef(void) | |
| 48 { | |
| 49 ++m_cRef; | |
| 50 NS_LOG_ADDREF(this, m_cRef, "nsNativeDragSource", sizeof(*this)); | |
| 51 return m_cRef; | |
| 52 } | |
| 53 | |
| 54 STDMETHODIMP_(ULONG) | |
| 55 nsNativeDragSource::Release(void) | |
| 56 { | |
| 57 --m_cRef; | |
| 58 NS_LOG_RELEASE(this, m_cRef, "nsNativeDragSource"); | |
| 59 if (0 != m_cRef) | |
| 60 return m_cRef; | |
| 61 | |
| 62 delete this; | |
| 63 return 0; | |
| 64 } | |
| 65 | |
| 66 STDMETHODIMP | |
| 67 nsNativeDragSource::QueryContinueDrag(BOOL fEsc, DWORD grfKeyState) | |
| 68 { | |
| 69 static NS_DEFINE_IID(kCDragServiceCID, NS_DRAGSERVICE_CID); | |
| 70 | |
| 71 nsCOMPtr<nsIDragService> dragService = do_GetService(kCDragServiceCID); | |
| 72 if (dragService) { | |
| 73 DWORD pos = ::GetMessagePos(); | |
| 74 dragService->DragMoved(GET_X_LPARAM(pos), GET_Y_LPARAM(pos)); | |
| 75 } | |
| 76 | |
| 77 if (fEsc) { | |
| 78 mUserCancelled = true; | |
| 79 return DRAGDROP_S_CANCEL; | |
| 80 } | |
| 81 | |
| 82 if (!(grfKeyState & MK_LBUTTON) || (grfKeyState & MK_RBUTTON)) | |
| 83 return DRAGDROP_S_DROP; | |
| 84 | |
| 85 return S_OK; | |
| 86 } | |
| 87 | |
| 88 STDMETHODIMP | |
| 89 nsNativeDragSource::GiveFeedback(DWORD dwEffect) | |
| 90 { | |
| 91 // For drags involving tabs, we do some custom work with cursors. | |
| 92 if (mDataTransfer) { | |
| 93 nsAutoString cursor; | |
| 94 mDataTransfer->GetMozCursor(cursor); | |
| 95 if (cursor.EqualsLiteral("default")) { | |
| 96 m_hCursor = ::LoadCursor(0, IDC_ARROW); | |
| 97 } else { | |
| 98 m_hCursor = nullptr; | |
| 99 } | |
| 100 } | |
| 101 | |
| 102 if (m_hCursor) { | |
| 103 ::SetCursor(m_hCursor); | |
| 104 return S_OK; | |
| 105 } | |
| 106 | |
| 107 // Let the system choose which cursor to apply. | |
| 108 return DRAGDROP_S_USEDEFAULTCURSORS; | |
| 109 } |
