The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/widget/windows/nsNativeDragSource.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,109 @@
     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 +
     1.9 +#include "nsNativeDragSource.h"
    1.10 +#include <stdio.h>
    1.11 +#include "nsISupportsImpl.h"
    1.12 +#include "nsString.h"
    1.13 +#include "nsIServiceManager.h"
    1.14 +#include "nsToolkit.h"
    1.15 +#include "nsWidgetsCID.h"
    1.16 +#include "nsIDragService.h"
    1.17 +
    1.18 +/*
    1.19 + * class nsNativeDragSource
    1.20 + */
    1.21 +nsNativeDragSource::nsNativeDragSource(nsIDOMDataTransfer* aDataTransfer) :
    1.22 +  m_cRef(0),
    1.23 +  m_hCursor(nullptr),
    1.24 +  mUserCancelled(false)
    1.25 +{
    1.26 +  mDataTransfer = do_QueryInterface(aDataTransfer);
    1.27 +}
    1.28 +
    1.29 +nsNativeDragSource::~nsNativeDragSource()
    1.30 +{
    1.31 +}
    1.32 +
    1.33 +STDMETHODIMP
    1.34 +nsNativeDragSource::QueryInterface(REFIID riid, void** ppv)
    1.35 +{
    1.36 +  *ppv=nullptr;
    1.37 +
    1.38 +  if (IID_IUnknown==riid || IID_IDropSource==riid)
    1.39 +    *ppv=this;
    1.40 +
    1.41 +  if (nullptr!=*ppv) {
    1.42 +    ((LPUNKNOWN)*ppv)->AddRef();
    1.43 +    return S_OK;
    1.44 +  }
    1.45 +
    1.46 +  return E_NOINTERFACE;
    1.47 +}
    1.48 +
    1.49 +STDMETHODIMP_(ULONG)
    1.50 +nsNativeDragSource::AddRef(void)
    1.51 +{
    1.52 +  ++m_cRef;
    1.53 +  NS_LOG_ADDREF(this, m_cRef, "nsNativeDragSource", sizeof(*this));
    1.54 +  return m_cRef;
    1.55 +}
    1.56 +
    1.57 +STDMETHODIMP_(ULONG)
    1.58 +nsNativeDragSource::Release(void)
    1.59 +{
    1.60 +  --m_cRef;
    1.61 +  NS_LOG_RELEASE(this, m_cRef, "nsNativeDragSource");
    1.62 +  if (0 != m_cRef)
    1.63 +    return m_cRef;
    1.64 +
    1.65 +  delete this;
    1.66 +  return 0;
    1.67 +}
    1.68 +
    1.69 +STDMETHODIMP
    1.70 +nsNativeDragSource::QueryContinueDrag(BOOL fEsc, DWORD grfKeyState)
    1.71 +{
    1.72 +  static NS_DEFINE_IID(kCDragServiceCID,  NS_DRAGSERVICE_CID);
    1.73 +
    1.74 +  nsCOMPtr<nsIDragService> dragService = do_GetService(kCDragServiceCID);
    1.75 +  if (dragService) {
    1.76 +    DWORD pos = ::GetMessagePos();
    1.77 +    dragService->DragMoved(GET_X_LPARAM(pos), GET_Y_LPARAM(pos));
    1.78 +  }
    1.79 +
    1.80 +  if (fEsc) {
    1.81 +    mUserCancelled = true;
    1.82 +    return DRAGDROP_S_CANCEL;
    1.83 +  }
    1.84 +
    1.85 +  if (!(grfKeyState & MK_LBUTTON) || (grfKeyState & MK_RBUTTON))
    1.86 +    return DRAGDROP_S_DROP;
    1.87 +
    1.88 +  return S_OK;
    1.89 +}
    1.90 +
    1.91 +STDMETHODIMP
    1.92 +nsNativeDragSource::GiveFeedback(DWORD dwEffect)
    1.93 +{
    1.94 +  // For drags involving tabs, we do some custom work with cursors. 
    1.95 +  if (mDataTransfer) {
    1.96 +    nsAutoString cursor;
    1.97 +    mDataTransfer->GetMozCursor(cursor);
    1.98 +    if (cursor.EqualsLiteral("default")) {
    1.99 +      m_hCursor = ::LoadCursor(0, IDC_ARROW);
   1.100 +    } else {
   1.101 +      m_hCursor =  nullptr;
   1.102 +    }
   1.103 +  }
   1.104 +
   1.105 +  if (m_hCursor) {
   1.106 +    ::SetCursor(m_hCursor);
   1.107 +    return S_OK;
   1.108 +  }
   1.109 +  
   1.110 +  // Let the system choose which cursor to apply.
   1.111 +  return DRAGDROP_S_USEDEFAULTCURSORS;
   1.112 +}