// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// https://html.spec.whatwg.org/C/webappapis.html#event-handler-attributes

// This definition is different from standard in order to handle special types
// (OnErrorEventHandler, OnBeforeUnloadEventHandler) in the same type with
// regular EventHandler.
[LegacyTreatNonObjectAsNull]
callback EventHandlerNonNull = any (any... args);
typedef EventHandlerNonNull? EventHandler;

// https://html.spec.whatwg.org/C/#onerroreventhandler
[LegacyTreatNonObjectAsNull]
callback OnErrorEventHandlerNonNull = any ((Event or DOMString) event, optional DOMString source, optional unsigned long lineno, optional unsigned long colno, optional any error);
typedef OnErrorEventHandlerNonNull? OnErrorEventHandler;

// https://html.spec.whatwg.org/C/#onbeforeunloadeventhandler
[LegacyTreatNonObjectAsNull]
callback OnBeforeUnloadEventHandlerNonNull = DOMString? (Event event);
typedef OnBeforeUnloadEventHandlerNonNull? OnBeforeUnloadEventHandler;