/* * Copyright (C) 2019 Metrological Group B.V. * Copyright (C) 2019 Igalia S.L. * * 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT * HOLDER OR 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 #include <memory> #include <wtf/Lock.h> #include <wtf/Ref.h> #include <wtf/ThreadSafeRefCounted.h> namespace Nicosia { class SceneIntegration : public ThreadSafeRefCounted<SceneIntegration> { public: class Client { public: virtual ~Client(); virtual void requestUpdate() = 0; }; static Ref<SceneIntegration> create(Client& client) { return adoptRef(*new SceneIntegration(client)); } ~SceneIntegration(); void setClient(Client&); void invalidate(); void requestUpdate(); class UpdateScope { WTF_MAKE_FAST_ALLOCATED; public: explicit UpdateScope(Ref<SceneIntegration>&&); ~UpdateScope(); private: Ref<SceneIntegration> m_sceneIntegration; LockHolder m_locker; }; std::unique_ptr<UpdateScope> createUpdateScope(); private: explicit SceneIntegration(Client&); struct { Lock lock; Client* object { nullptr }; } m_client; }; } // namespace Nicosia