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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /dom/base/GlobalTeardownObserver.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/base/GlobalTeardownObserver.cpp')
-rw-r--r-- | dom/base/GlobalTeardownObserver.cpp | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/dom/base/GlobalTeardownObserver.cpp b/dom/base/GlobalTeardownObserver.cpp new file mode 100644 index 0000000000..9f9ac39b47 --- /dev/null +++ b/dom/base/GlobalTeardownObserver.cpp @@ -0,0 +1,73 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "GlobalTeardownObserver.h" +#include "mozilla/Sprintf.h" +#include "mozilla/dom/Document.h" + +namespace mozilla { + +GlobalTeardownObserver::GlobalTeardownObserver() = default; +GlobalTeardownObserver::GlobalTeardownObserver(nsIGlobalObject* aGlobalObject, + bool aHasOrHasHadOwnerWindow) + : mHasOrHasHadOwnerWindow(aHasOrHasHadOwnerWindow) { + BindToOwner(aGlobalObject); +} + +GlobalTeardownObserver::~GlobalTeardownObserver() { + if (mParentObject) { + mParentObject->RemoveGlobalTeardownObserver(this); + } +} + +void GlobalTeardownObserver::BindToOwner(nsIGlobalObject* aOwner) { + MOZ_ASSERT(!mParentObject); + + if (aOwner) { + mParentObject = aOwner; + aOwner->AddGlobalTeardownObserver(this); + // Let's cache the result of this QI for fast access and off main thread + // usage + mOwnerWindow = + nsCOMPtr<nsPIDOMWindowInner>(do_QueryInterface(aOwner)).get(); + if (mOwnerWindow) { + mHasOrHasHadOwnerWindow = true; + } + } +} + +void GlobalTeardownObserver::DisconnectFromOwner() { + if (mParentObject) { + mParentObject->RemoveGlobalTeardownObserver(this); + } + mOwnerWindow = nullptr; + mParentObject = nullptr; +} + +nsresult GlobalTeardownObserver::CheckCurrentGlobalCorrectness() const { + NS_ENSURE_STATE(!mHasOrHasHadOwnerWindow || mOwnerWindow); + + // Main-thread. + if (mOwnerWindow && !mOwnerWindow->IsCurrentInnerWindow()) { + return NS_ERROR_FAILURE; + } + + if (NS_IsMainThread()) { + return NS_OK; + } + + if (!mParentObject) { + return NS_ERROR_FAILURE; + } + + if (mParentObject->IsDying()) { + return NS_ERROR_FAILURE; + } + + return NS_OK; +} + +}; // namespace mozilla |