Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 75 insertions, 0 deletions

diff --git a/dom/storage/StorageObserver.h b/dom/storage/StorageObserver.h
new file mode 100644
index 0000000000..3d359d4ea4
--- /dev/null
+++ b/dom/storage/StorageObserver.h
@@ -0,0 +1,75 @@
+/* -*- 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/. */
+
+#ifndef mozilla_dom_StorageObserver_h
+#define mozilla_dom_StorageObserver_h
+
+#include "nsIObserver.h"
+#include "nsITimer.h"
+#include "nsWeakReference.h"
+#include "nsTObserverArray.h"
+#include "nsString.h"
+
+namespace mozilla {
+namespace dom {
+
+class StorageObserver;
+
+// Main-thread interface implemented by legacy LocalStorageManager and current
+// SessionStorageManager for direct consumption. Also implemented by legacy
+// StorageDBParent and current SessionStorageObserverParent for propagation to
+// content processes.
+class StorageObserverSink {
+ public:
+  virtual ~StorageObserverSink() = default;
+
+ private:
+  friend class StorageObserver;
+  virtual nsresult Observe(const char* aTopic,
+                           const nsAString& aOriginAttributesPattern,
+                           const nsACString& aOriginScope) = 0;
+};
+
+// Statically (through layout statics) initialized observer receiving and
+// processing chrome clearing notifications, such as cookie deletion etc.
+class StorageObserver : public nsIObserver, public nsSupportsWeakReference {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIOBSERVER
+
+  static nsresult Init();
+  static nsresult Shutdown();
+  static StorageObserver* Self() { return sSelf; }
+
+  void AddSink(StorageObserverSink* aObs);
+  void RemoveSink(StorageObserverSink* aObs);
+  void Notify(const char* aTopic,
+              const nsAString& aOriginAttributesPattern = u""_ns,
+              const nsACString& aOriginScope = ""_ns);
+
+  void NoteBackgroundThread(uint32_t aPrivateBrowsingId,
+                            nsIEventTarget* aBackgroundThread);
+
+ private:
+  virtual ~StorageObserver() = default;
+
+  nsresult GetOriginScope(const char16_t* aData, nsACString& aOriginScope);
+
+  static void TestingPrefChanged(const char* aPrefName, void* aClosure);
+
+  static StorageObserver* sSelf;
+
+  nsCOMPtr<nsIEventTarget> mBackgroundThread[2];
+
+  // Weak references
+  nsTObserverArray<StorageObserverSink*> mSinks;
+  nsCOMPtr<nsITimer> mDBThreadStartDelayTimer;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_StorageObserver_h