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() : mWindow(nullptr), mIsEmpty(true) {}
  16
  17 WindowIdentifier::WindowIdentifier(nsPIDOMWindowInner* window)
  18     : mWindow(window), mIsEmpty(false) {
  19   mID.AppendElement(GetWindowID());
  20 }
  21
  22 WindowIdentifier::WindowIdentifier(const InfallibleTArray<uint64_t>& id,
  23                                    nsPIDOMWindowInner* window)
  24     : mID(id), mWindow(window), mIsEmpty(false) {
  25   mID.AppendElement(GetWindowID());
  26 }
  27
  28 WindowIdentifier::WindowIdentifier(const WindowIdentifier& other)
  29     : mID(other.mID), mWindow(other.mWindow), mIsEmpty(other.mIsEmpty) {}
  30
  31 const InfallibleTArray<uint64_t>& WindowIdentifier::AsArray() const {
  32   MOZ_ASSERT(!mIsEmpty);
  33   return mID;
  34 }
  35
  36 bool WindowIdentifier::HasTraveledThroughIPC() const {
  37   MOZ_ASSERT(!mIsEmpty);
  38   return mID.Length() >= 2;
  39 }
  40
  41 void WindowIdentifier::AppendProcessID() {
  42   MOZ_ASSERT(!mIsEmpty);
  43   mID.AppendElement(dom::ContentChild::GetSingleton()->GetID());
  44 }
  45
  46 uint64_t WindowIdentifier::GetWindowID() const {
  47   MOZ_ASSERT(!mIsEmpty);
  48   return mWindow ? mWindow->WindowID() : UINT64_MAX;
  49 }
  50
  51 nsPIDOMWindowInner* WindowIdentifier::GetWindow() const {
  52   MOZ_ASSERT(!mIsEmpty);
  53   return mWindow;
  54 }
  55
  56 }  // namespace hal
  57 }  // namespace mozilla