hal/WindowIdentifier.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set sw=2 ts=8 et ft=cpp : */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "WindowIdentifier.h"
   8
   9 #include "mozilla/dom/ContentChild.h"
  10 #include "nsPIDOMWindow.h"
  11
  12 namespace mozilla {
  13 namespace hal {
  14
  15 WindowIdentifier::WindowIdentifier()
  16     : mWindow(nullptr)
  17 #ifdef DEBUG
  18       ,
  19       mIsEmpty(true)
  20 #endif
  21 {
  22 }
  23
  24 WindowIdentifier::WindowIdentifier(nsPIDOMWindowInner* window)
  25     : mWindow(window) {
  26   mID.AppendElement(GetWindowID());
  27 }
  28
  29 WindowIdentifier::WindowIdentifier(nsTArray<uint64_t>&& id,
  30                                    nsPIDOMWindowInner* window)
  31     : mID(std::move(id)), mWindow(window) {
  32   mID.AppendElement(GetWindowID());
  33 }
  34
  35 const nsTArray<uint64_t>& WindowIdentifier::AsArray() const {
  36   MOZ_ASSERT(!mIsEmpty);
  37   return mID;
  38 }
  39
  40 bool WindowIdentifier::HasTraveledThroughIPC() const {
  41   MOZ_ASSERT(!mIsEmpty);
  42   return mID.Length() >= 2;
  43 }
  44
  45 void WindowIdentifier::AppendProcessID() {
  46   MOZ_ASSERT(!mIsEmpty);
  47   mID.AppendElement(dom::ContentChild::GetSingleton()->GetID());
  48 }
  49
  50 uint64_t WindowIdentifier::GetWindowID() const {
  51   MOZ_ASSERT(!mIsEmpty);
  52   return mWindow ? mWindow->WindowID() : UINT64_MAX;
  53 }
  54
  55 nsPIDOMWindowInner* WindowIdentifier::GetWindow() const {
  56   MOZ_ASSERT(!mIsEmpty);
  57   return mWindow;
  58 }
  59
  60 }  // namespace hal
  61 }  // namespace mozilla