1 files changed, 99 insertions, 0 deletions
diff --git a/dom/indexedDB/IDBEvents.h b/dom/indexedDB/IDBEvents.h
new file mode 100644
index 0000000000..2b27261404
--- /dev/null
+++ b/dom/indexedDB/IDBEvents.h
@@ -0,0 +1,99 @@
+/* -*- 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_idbevents_h__
+#define mozilla_dom_idbevents_h__
+
+#include "js/RootingAPI.h"
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/dom/Event.h"
+#include "mozilla/dom/Nullable.h"
+#include "nsStringFwd.h"
+
+#define IDBVERSIONCHANGEEVENT_IID                    \
+  {                                                  \
+    0x3b65d4c3, 0x73ad, 0x492e, {                    \
+      0xb1, 0x2d, 0x15, 0xf9, 0xda, 0xc2, 0x08, 0x4b \
+    }                                                \
+  }
+
+namespace mozilla {
+
+class ErrorResult;
+
+namespace dom {
+
+class EventTarget;
+class GlobalObject;
+struct IDBVersionChangeEventInit;
+
+namespace indexedDB {
+
+enum Bubbles { eDoesNotBubble, eDoesBubble };
+
+enum Cancelable { eNotCancelable, eCancelable };
+
+extern const char16_t* kAbortEventType;
+extern const char16_t* kBlockedEventType;
+extern const char16_t* kCompleteEventType;
+extern const char16_t* kErrorEventType;
+extern const char16_t* kSuccessEventType;
+extern const char16_t* kUpgradeNeededEventType;
+extern const char16_t* kVersionChangeEventType;
+extern const char16_t* kCloseEventType;
+
+[[nodiscard]] RefPtr<Event> CreateGenericEvent(EventTarget* aOwner,
+                                               const nsDependentString& aType,
+                                               Bubbles aBubbles,
+                                               Cancelable aCancelable);
+
+}  // namespace indexedDB
+
+class IDBVersionChangeEvent final : public Event {
+  uint64_t mOldVersion;
+  Nullable<uint64_t> mNewVersion;
+
+ public:
+  [[nodiscard]] static RefPtr<IDBVersionChangeEvent> Create(
+      EventTarget* aOwner, const nsDependentString& aName, uint64_t aOldVersion,
+      uint64_t aNewVersion);
+
+  [[nodiscard]] static RefPtr<IDBVersionChangeEvent> Create(
+      EventTarget* aOwner, const nsDependentString& aName,
+      uint64_t aOldVersion);
+
+  [[nodiscard]] static RefPtr<IDBVersionChangeEvent> Constructor(
+      const GlobalObject& aGlobal, const nsAString& aType,
+      const IDBVersionChangeEventInit& aOptions);
+
+  uint64_t OldVersion() const { return mOldVersion; }
+
+  Nullable<uint64_t> GetNewVersion() const { return mNewVersion; }
+
+  NS_DECLARE_STATIC_IID_ACCESSOR(IDBVERSIONCHANGEEVENT_IID)
+
+  NS_DECL_ISUPPORTS_INHERITED
+
+  virtual JSObject* WrapObjectInternal(
+      JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+ private:
+  IDBVersionChangeEvent(EventTarget* aOwner, uint64_t aOldVersion)
+      : Event(aOwner, nullptr, nullptr), mOldVersion(aOldVersion) {}
+
+  ~IDBVersionChangeEvent() = default;
+
+  [[nodiscard]] static RefPtr<IDBVersionChangeEvent> CreateInternal(
+      EventTarget* aOwner, const nsAString& aType, uint64_t aOldVersion,
+      const Nullable<uint64_t>& aNewVersion);
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(IDBVersionChangeEvent, IDBVERSIONCHANGEEVENT_IID)
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_idbevents_h__