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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/reporting/ReportingObserver.cpp
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/reporting/ReportingObserver.cpp')
-rw-r--r--dom/reporting/ReportingObserver.cpp152
1 files changed, 152 insertions, 0 deletions
diff --git a/dom/reporting/ReportingObserver.cpp b/dom/reporting/ReportingObserver.cpp
new file mode 100644
index 0000000000..808824ce95
--- /dev/null
+++ b/dom/reporting/ReportingObserver.cpp
@@ -0,0 +1,152 @@
+/* -*- 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 "mozilla/dom/ReportingObserver.h"
+#include "mozilla/dom/Report.h"
+#include "mozilla/dom/ReportingBinding.h"
+#include "nsContentUtils.h"
+#include "nsIGlobalObject.h"
+#include "nsThreadUtils.h"
+
+namespace mozilla::dom {
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(ReportingObserver)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(ReportingObserver)
+ tmp->Disconnect();
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mReports)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mGlobal)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mCallback)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(ReportingObserver)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mReports)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGlobal)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCallback)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+/* static */
+already_AddRefed<ReportingObserver> ReportingObserver::Constructor(
+ const GlobalObject& aGlobal, ReportingObserverCallback& aCallback,
+ const ReportingObserverOptions& aOptions, ErrorResult& aRv) {
+ nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
+ MOZ_ASSERT(global);
+
+ nsTArray<nsString> types;
+ if (aOptions.mTypes.WasPassed()) {
+ types = aOptions.mTypes.Value();
+ }
+
+ RefPtr<ReportingObserver> ro =
+ new ReportingObserver(global, aCallback, types, aOptions.mBuffered);
+
+ return ro.forget();
+}
+
+ReportingObserver::ReportingObserver(nsIGlobalObject* aGlobal,
+ ReportingObserverCallback& aCallback,
+ const nsTArray<nsString>& aTypes,
+ bool aBuffered)
+ : mGlobal(aGlobal),
+ mCallback(&aCallback),
+ mTypes(aTypes.Clone()),
+ mBuffered(aBuffered) {
+ MOZ_ASSERT(aGlobal);
+}
+
+ReportingObserver::~ReportingObserver() { Disconnect(); }
+
+JSObject* ReportingObserver::WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) {
+ return ReportingObserver_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+void ReportingObserver::Observe() {
+ mGlobal->RegisterReportingObserver(this, mBuffered);
+}
+
+void ReportingObserver::Disconnect() {
+ if (mGlobal) {
+ mGlobal->UnregisterReportingObserver(this);
+ }
+}
+
+void ReportingObserver::TakeRecords(nsTArray<RefPtr<Report>>& aRecords) {
+ mReports.SwapElements(aRecords);
+}
+
+namespace {
+
+class ReportRunnable final : public DiscardableRunnable {
+ public:
+ explicit ReportRunnable(nsIGlobalObject* aGlobal)
+ : DiscardableRunnable("ReportRunnable"), mGlobal(aGlobal) {}
+
+ // MOZ_CAN_RUN_SCRIPT_BOUNDARY until Runnable::Run is MOZ_CAN_RUN_SCRIPT. See
+ // bug 1535398.
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHOD Run() override {
+ MOZ_KnownLive(mGlobal)->NotifyReportingObservers();
+ return NS_OK;
+ }
+
+ private:
+ const nsCOMPtr<nsIGlobalObject> mGlobal;
+};
+
+} // namespace
+
+void ReportingObserver::MaybeReport(Report* aReport) {
+ MOZ_ASSERT(aReport);
+
+ if (!mTypes.IsEmpty()) {
+ nsAutoString type;
+ aReport->GetType(type);
+
+ if (!mTypes.Contains(type)) {
+ return;
+ }
+ }
+
+ bool wasEmpty = mReports.IsEmpty();
+
+ RefPtr<Report> report = aReport->Clone();
+ MOZ_ASSERT(report);
+
+ if (NS_WARN_IF(!mReports.AppendElement(report, fallible))) {
+ return;
+ }
+
+ if (!wasEmpty) {
+ return;
+ }
+
+ RefPtr<ReportRunnable> r = new ReportRunnable(mGlobal);
+ NS_DispatchToCurrentThread(r);
+}
+
+void ReportingObserver::MaybeNotify() {
+ if (mReports.IsEmpty()) {
+ return;
+ }
+
+ // Let's take the ownership of the reports.
+ nsTArray<RefPtr<Report>> list = std::move(mReports);
+
+ Sequence<OwningNonNull<Report>> reports;
+ for (Report* report : list) {
+ if (NS_WARN_IF(!reports.AppendElement(*report, fallible))) {
+ return;
+ }
+ }
+
+ // We should report if this throws exception. But where?
+ RefPtr<ReportingObserverCallback> callback(mCallback);
+ callback->Call(reports, *this);
+}
+
+void ReportingObserver::ForgetReports() { mReports.Clear(); }
+
+} // namespace mozilla::dom