| /* |
| * Copyright (C) 2020 Igalia S.L. 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 ENABLE(WEBXR) |
| |
| #include "ActiveDOMCallback.h" |
| #include "CallbackResult.h" |
| #include <wtf/RefCounted.h> |
| |
| namespace WebCore { |
| |
| class WebXRFrame; |
| |
| class XRFrameRequestCallback : public RefCounted<XRFrameRequestCallback>, public ActiveDOMCallback { |
| public: |
| using ActiveDOMCallback::ActiveDOMCallback; |
| |
| virtual CallbackResult<void> handleEvent(double highResTimeMs, WebXRFrame&) = 0; |
| |
| using Id = unsigned long; |
| Id callbackId() { ASSERT(m_id); return m_id; } |
| void setCallbackId(Id id) { ASSERT(!m_id); m_id = id; } |
| void cancel() { m_cancelled = true; } |
| bool isCancelled() const { return m_cancelled; } |
| |
| private: |
| Id m_id { 0 }; |
| bool m_cancelled { false }; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WEBXR) |