| /* |
| * Copyright (C) 2019 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #if PLATFORM(IOS_FAMILY) |
| |
| #include <wtf/RetainPtr.h> |
| |
| OBJC_CLASS WKProcessTaskStateObserverDelegate; |
| OBJC_CLASS BKSProcess; |
| |
| namespace WebKit { |
| |
| class ProcessTaskStateObserver { |
| public: |
| class Client; |
| |
| ProcessTaskStateObserver(); |
| explicit ProcessTaskStateObserver(Client&); |
| ~ProcessTaskStateObserver(); |
| |
| enum TaskState { |
| None, |
| Running, |
| Suspended, |
| }; |
| |
| class Client { |
| public: |
| virtual ~Client() = default; |
| virtual void processTaskStateDidChange(TaskState) = 0; |
| }; |
| |
| void setClient(Client& client) { m_client = &client; } |
| Client* client() { return m_client; } |
| |
| TaskState taskState() const { return m_taskState; } |
| |
| private: |
| void setTaskState(TaskState); |
| |
| Client* m_client { nullptr }; |
| TaskState m_taskState { None }; |
| RetainPtr<BKSProcess> m_process; |
| RetainPtr<WKProcessTaskStateObserverDelegate> m_delegate; |
| }; |
| |
| } |
| |
| #endif // PLATFORM(IOS_FAMILY) |