|  | // 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 "ui/events/test/platform_event_waiter.h" | 
|  |  | 
|  | #include "base/message_loop/message_loop.h" | 
|  | #include "ui/events/platform/platform_event_source.h" | 
|  |  | 
|  | namespace ui { | 
|  |  | 
|  | PlatformEventWaiter::PlatformEventWaiter( | 
|  | const base::Closure& success_callback, | 
|  | const PlatformEventMatcher& event_matcher) | 
|  | : success_callback_(success_callback), | 
|  | event_matcher_(event_matcher) { | 
|  | PlatformEventSource::GetInstance()->AddPlatformEventObserver(this); | 
|  | } | 
|  |  | 
|  | PlatformEventWaiter::~PlatformEventWaiter() { | 
|  | PlatformEventSource::GetInstance()->RemovePlatformEventObserver(this); | 
|  | } | 
|  |  | 
|  | void PlatformEventWaiter::WillProcessEvent(const PlatformEvent& event) { | 
|  | if (event_matcher_.Run(event)) { | 
|  | base::MessageLoop::current()->PostTask(FROM_HERE, success_callback_); | 
|  | delete this; | 
|  | } | 
|  | } | 
|  |  | 
|  | void PlatformEventWaiter::DidProcessEvent(const PlatformEvent& event) { | 
|  | } | 
|  |  | 
|  | // static | 
|  | PlatformEventWaiter* PlatformEventWaiter::Create( | 
|  | const base::Closure& success_callback, | 
|  | const PlatformEventMatcher& event_matcher) { | 
|  | return new PlatformEventWaiter(success_callback, event_matcher); | 
|  | } | 
|  |  | 
|  | }  // namespace ui |