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   , mIsEmpty(true)
  18 {
  19 }
  20
  21 WindowIdentifier::WindowIdentifier(nsPIDOMWindowInner* window)
  22   : mWindow(window)
  23   , mIsEmpty(false)
  24 {
  25   mID.AppendElement(GetWindowID());
  26 }
  27
  28 WindowIdentifier::WindowIdentifier(const InfallibleTArray<uint64_t> &id,
  29                                    nsPIDOMWindowInner* window)
  30   : mID(id)
  31   , mWindow(window)
  32   , mIsEmpty(false)
  33 {
  34   mID.AppendElement(GetWindowID());
  35 }
  36
  37 WindowIdentifier::WindowIdentifier(const WindowIdentifier &other)
  38   : mID(other.mID)
  39   , mWindow(other.mWindow)
  40   , mIsEmpty(other.mIsEmpty)
  41 {
  42 }
  43
  44 const InfallibleTArray<uint64_t>&
  45 WindowIdentifier::AsArray() const
  46 {
  47   MOZ_ASSERT(!mIsEmpty);
  48   return mID;
  49 }
  50
  51 bool
  52 WindowIdentifier::HasTraveledThroughIPC() const
  53 {
  54   MOZ_ASSERT(!mIsEmpty);
  55   return mID.Length() >= 2;
  56 }
  57
  58 void
  59 WindowIdentifier::AppendProcessID()
  60 {
  61   MOZ_ASSERT(!mIsEmpty);
  62   mID.AppendElement(dom::ContentChild::GetSingleton()->GetID());
  63 }
  64
  65 uint64_t
  66 WindowIdentifier::GetWindowID() const
  67 {
  68   MOZ_ASSERT(!mIsEmpty);
  69   return mWindow ? mWindow->WindowID() : UINT64_MAX;
  70 }
  71
  72 nsPIDOMWindowInner*
  73 WindowIdentifier::GetWindow() const
  74 {
  75   MOZ_ASSERT(!mIsEmpty);
  76   return mWindow;
  77 }
  78
  79 } // namespace hal
  80 } // namespace mozilla