blob: 6a893e1e42b55bbc690eb6979327f5015d473929 [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/callback.h"
#include "ui/events/events_export.h"
#include "ui/events/platform_event.h"
namespace ui {
class Event;
// Wrap a "native" ui::Event in another ui::Event & dispatch it.
// This is really unfortunate, but exists for two reasons:
// 1. Some of the ui::Event constructors depend on global state that
// is only used when building from a "native" event. For example:
// last_click_event_ is used when constructing MouseEvent from
// NativeEvent to determine click count.
// 2. Events contain a reference to a "native event", which some code
// depends on. The ui::Event might get mutated during dispatch, but
// the native event won't. Some code depends on the fact that the
// "native" version of the event is unmodified.
// We are trying to fix both of these issues, but in the meantime we
// define NativeEvent == ui::Event.
EVENTS_EXPORT void DispatchEventFromNativeUiEvent(
const PlatformEvent& native_event,
base::OnceCallback<void(ui::Event*)> callback);
} // namespace ui