The Tor Browser: widget/windows/nsToolkit.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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/. */

     6 #include "nsToolkit.h"

     7 #include "nsAppShell.h"

     8 #include "nsWindow.h"

     9 #include "nsWidgetsCID.h"

    10 #include "prmon.h"

    11 #include "prtime.h"

    12 #include "nsIServiceManager.h"

    13 #include "nsComponentManagerUtils.h"

    14 #include <objbase.h>

    15 #include "WinUtils.h"

    17 #include "nsUXThemeData.h"

    19 // unknwn.h is needed to build with WIN32_LEAN_AND_MEAN

    20 #include <unknwn.h>

    22 using namespace mozilla::widget;

    24 nsToolkit* nsToolkit::gToolkit = nullptr;

    25 HINSTANCE nsToolkit::mDllInstance = 0;

    26 static const unsigned long kD3DUsageDelay = 5000;

    28 static void

    29 StartAllowingD3D9(nsITimer *aTimer, void *aClosure)

    30 {

    31   if (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Desktop) {

    32     nsWindow::StartAllowingD3D9(true);

    33   }

    34 }

    36 MouseTrailer*       nsToolkit::gMouseTrailer;

    38 //-------------------------------------------------------------------------

    39 //

    40 // constructor

    41 //

    42 //-------------------------------------------------------------------------

    43 nsToolkit::nsToolkit()

    44 {

    45     MOZ_COUNT_CTOR(nsToolkit);

    47 #if defined(MOZ_STATIC_COMPONENT_LIBS)

    48     nsToolkit::Startup(GetModuleHandle(nullptr));

    49 #endif

    51     gMouseTrailer = &mMouseTrailer;

    53     if (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Desktop) {

    54       mD3D9Timer = do_CreateInstance("@mozilla.org/timer;1");

    55       mD3D9Timer->InitWithFuncCallback(::StartAllowingD3D9,

    56                                        nullptr,

    57                                        kD3DUsageDelay,

    58                                        nsITimer::TYPE_ONE_SHOT);

    59     }

    60 }

    63 //-------------------------------------------------------------------------

    64 //

    65 // destructor

    66 //

    67 //-------------------------------------------------------------------------

    68 nsToolkit::~nsToolkit()

    69 {

    70     MOZ_COUNT_DTOR(nsToolkit);

    71     gMouseTrailer = nullptr;

    72 }

    74 void

    75 nsToolkit::Startup(HMODULE hModule)

    76 {

    77     nsToolkit::mDllInstance = hModule;

    78     WinUtils::Initialize();

    79     nsUXThemeData::Initialize();

    80 }

    82 void

    83 nsToolkit::Shutdown()

    84 {

    85     delete gToolkit;

    86     gToolkit = nullptr;

    87 }

    89 void

    90 nsToolkit::StartAllowingD3D9()

    91 {

    92   if (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Desktop) {

    93     nsToolkit::GetToolkit()->mD3D9Timer->Cancel();

    94     nsWindow::StartAllowingD3D9(false);

    95   }

    96 }

    98 //-------------------------------------------------------------------------

    99 //

   100 // Return the nsToolkit for the current thread.  If a toolkit does not

   101 // yet exist, then one will be created...

   102 //

   103 //-------------------------------------------------------------------------

   104 // static

   105 nsToolkit* nsToolkit::GetToolkit()

   106 {

   107   if (!gToolkit) {

   108     gToolkit = new nsToolkit();

   109   }

   111   return gToolkit;

   112 }

   115 //-------------------------------------------------------------------------

   116 //

   117 //

   118 //-------------------------------------------------------------------------

   119 MouseTrailer::MouseTrailer() : mMouseTrailerWindow(nullptr), mCaptureWindow(nullptr),

   120   mIsInCaptureMode(false), mEnabled(true)

   121 {

   122 }

   123 //-------------------------------------------------------------------------

   124 //

   125 //

   126 //-------------------------------------------------------------------------

   127 MouseTrailer::~MouseTrailer()

   128 {

   129   DestroyTimer();

   130 }

   131 //-------------------------------------------------------------------------

   132 //

   133 //

   134 //-------------------------------------------------------------------------

   135 void MouseTrailer::SetMouseTrailerWindow(HWND aWnd)

   136 {

   137   if (mMouseTrailerWindow != aWnd && mTimer) {

   138     // Make sure TimerProc is fired at least once for the old window

   139     TimerProc(nullptr, nullptr);

   140   }

   141   mMouseTrailerWindow = aWnd;

   142   CreateTimer();

   143 }

   145 //-------------------------------------------------------------------------

   146 //

   147 //

   148 //-------------------------------------------------------------------------

   149 void MouseTrailer::SetCaptureWindow(HWND aWnd)

   150 {

   151   mCaptureWindow = aWnd;

   152   if (mCaptureWindow) {

   153     mIsInCaptureMode = true;

   154   }

   155 }

   157 //-------------------------------------------------------------------------

   158 //

   159 //

   160 //-------------------------------------------------------------------------

   161 nsresult MouseTrailer::CreateTimer()

   162 {

   163   if (mTimer || !mEnabled) {

   164     return NS_OK;

   165   }

   167   nsresult rv;

   168   mTimer = do_CreateInstance("@mozilla.org/timer;1", &rv);

   169   NS_ENSURE_SUCCESS(rv, rv);

   171   return mTimer->InitWithFuncCallback(TimerProc, nullptr, 200,

   172                                       nsITimer::TYPE_REPEATING_SLACK);

   173 }

   175 //-------------------------------------------------------------------------

   176 //

   177 //

   178 //-------------------------------------------------------------------------

   179 void MouseTrailer::DestroyTimer()

   180 {

   181   if (mTimer) {

   182     mTimer->Cancel();

   183     mTimer = nullptr;

   184   }

   185 }

   187 //-------------------------------------------------------------------------

   188 //

   189 //

   190 //-------------------------------------------------------------------------

   191 void MouseTrailer::TimerProc(nsITimer* aTimer, void* aClosure)

   192 {

   193   MouseTrailer *mtrailer = nsToolkit::gMouseTrailer;

   194   NS_ASSERTION(mtrailer, "MouseTrailer still firing after deletion!");

   196   // Check to see if we are in mouse capture mode,

   197   // Once capture ends we could still get back one more timer event.

   198   // Capture could end outside our window.

   199   // Also, for some reason when the mouse is on the frame it thinks that

   200   // it is inside the window that is being captured.

   201   if (mtrailer->mCaptureWindow) {

   202     if (mtrailer->mCaptureWindow != mtrailer->mMouseTrailerWindow) {

   203       return;

   204     }

   205   } else {

   206     if (mtrailer->mIsInCaptureMode) {

   207       // mMouseTrailerWindow could be bad from rolling over the frame, so clear

   208       // it if we were capturing and now this is the first timer callback

   209       // since we canceled the capture

   210       mtrailer->mMouseTrailerWindow = nullptr;

   211       mtrailer->mIsInCaptureMode = false;

   212       return;

   213     }

   214   }

   216   if (mtrailer->mMouseTrailerWindow && ::IsWindow(mtrailer->mMouseTrailerWindow)) {

   217     POINT mp;

   218     DWORD pos = ::GetMessagePos();

   219     mp.x = GET_X_LPARAM(pos);

   220     mp.y = GET_Y_LPARAM(pos);

   221     HWND mouseWnd = ::WindowFromPoint(mp);

   222     if (mtrailer->mMouseTrailerWindow != mouseWnd) {

   223       // Notify someone that a mouse exit happened.

   224       PostMessage(mtrailer->mMouseTrailerWindow, WM_MOUSELEAVE, 0, 0);

   226       // we are out of this window, destroy timer

   227       mtrailer->DestroyTimer();

   228       mtrailer->mMouseTrailerWindow = nullptr;

   229     }

   230   } else {

   231     mtrailer->DestroyTimer();

   232     mtrailer->mMouseTrailerWindow = nullptr;

   233   }

   234 }

The Tor Browser / file revision

widget/windows/nsToolkit.cpp@6474c204b198

widget/windows/nsToolkit.cpp