74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "GlobalTeardownObserver.h"
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#include "nsGlobalWindowInner.h"
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#include "mozilla/dom/Document.h"
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namespace mozilla {
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GlobalTeardownObserver::GlobalTeardownObserver() = default;
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GlobalTeardownObserver::GlobalTeardownObserver(nsIGlobalObject* aGlobalObject,
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bool aHasOrHasHadOwnerWindow)
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: mHasOrHasHadOwnerWindow(aHasOrHasHadOwnerWindow) {
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BindToOwner(aGlobalObject);
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}
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GlobalTeardownObserver::~GlobalTeardownObserver() {
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if (mParentObject) {
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mParentObject->RemoveGlobalTeardownObserver(this);
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}
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}
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nsGlobalWindowInner* GlobalTeardownObserver::GetOwnerWindow() const {
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return mHasOrHasHadOwnerWindow
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? static_cast<nsGlobalWindowInner*>(mParentObject)
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: nullptr;
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}
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void GlobalTeardownObserver::BindToOwner(nsIGlobalObject* aOwner) {
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MOZ_ASSERT(!mParentObject);
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if (aOwner) {
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mParentObject = aOwner;
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aOwner->AddGlobalTeardownObserver(this);
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const bool isWindow = !!aOwner->GetAsInnerWindow();
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MOZ_ASSERT_IF(!isWindow, !mHasOrHasHadOwnerWindow);
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mHasOrHasHadOwnerWindow = isWindow;
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}
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}
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void GlobalTeardownObserver::DisconnectFromOwner() {
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if (mParentObject) {
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mParentObject->RemoveGlobalTeardownObserver(this);
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mParentObject = nullptr;
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}
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}
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nsresult GlobalTeardownObserver::CheckCurrentGlobalCorrectness() const {
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if (!mParentObject) {
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if (NS_IsMainThread() && !HasOrHasHadOwnerWindow()) {
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return NS_OK;
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}
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return NS_ERROR_FAILURE;
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}
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// Main-thread.
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if (mHasOrHasHadOwnerWindow) {
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auto* ownerWin = static_cast<nsGlobalWindowInner*>(mParentObject);
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if (!ownerWin->IsCurrentInnerWindow()) {
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return NS_ERROR_FAILURE;
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}
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}
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if (mParentObject->IsDying() && !NS_IsMainThread()) {
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return NS_ERROR_FAILURE;
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}
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return NS_OK;
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}
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}; // namespace mozilla
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