gfx/vr/FxRWindowManager.cpp

   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 "FxRWindowManager.h"
   7 #include "mozilla/Assertions.h"
   8 #include "nsPIDOMWindow.h"
   9 #include "mozilla/ClearOnShutdown.h"
  10
  11 #include "nsWindow.h"
  12
  13 static mozilla::StaticAutoPtr<FxRWindowManager> sFxrWinMgrInstance;
  14
  15 FxRWindowManager* FxRWindowManager::GetInstance() {
  16   if (sFxrWinMgrInstance == nullptr) {
  17     sFxrWinMgrInstance = new FxRWindowManager();
  18     ClearOnShutdown(&sFxrWinMgrInstance);
  19   }
  20
  21   return sFxrWinMgrInstance;
  22 }
  23
  24 FxRWindowManager::FxRWindowManager() : mWindow(nullptr) {}
  25
  26 // Track this new Firefox Reality window instance
  27 void FxRWindowManager::AddWindow(nsPIDOMWindowOuter* aWindow) {
  28   if (mWindow != nullptr) {
  29     MOZ_CRASH("Only one window is supported");
  30   }
  31
  32   mWindow = aWindow;
  33 }
  34
  35 // Returns true if the window at the provided ID was created for Firefox Reality
  36 bool FxRWindowManager::IsFxRWindow(uint64_t aOuterWindowID) {
  37   return (mWindow != nullptr) && (mWindow->WindowID() == aOuterWindowID);
  38 }
  39
  40 // Returns true if the window was created for Firefox Reality
  41 bool FxRWindowManager::IsFxRWindow(const nsWindow* aWindow) const {
  42   return (mWindow != nullptr) &&
  43          (aWindow ==
  44           mozilla::widget::WidgetUtils::DOMWindowToWidget(mWindow).take());
  45 }
  46
  47 uint64_t FxRWindowManager::GetWindowID() const {
  48   MOZ_ASSERT(mWindow);
  49   return mWindow->WindowID();
  50 }