summaryrefslogtreecommitdiffstats
path: root/dom/base/GlobalTeardownObserver.cpp
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/base/GlobalTeardownObserver.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/base/GlobalTeardownObserver.cpp')
-rw-r--r--dom/base/GlobalTeardownObserver.cpp73
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