openvr_events.hpp

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// Copyright 2026, Beyley Cardellio
// SPDX-License-Identifier: BSL-1.0
/*!
 * @file
 * @brief Implementation of OpenVR event handling and related functionality.
 *
 * @author Beyley Cardellio <ep1cm1n10n123@gmail.com>
 * @ingroup openvr
 */
 
#pragma once
 
#include "xrt/xrt_session.h"
 
#include "util/u_time.h"
 
#include "common/openvr_logger.hpp"
 
#include "openvr_interfaces_unified.h"
 
#include <queue>
 
 
namespace xrt::state_trackers::openvr {
 
struct Event
{
        timepoint_ns timestamp;
        vr::VREvent_t event;
};
 
struct Events
{
private: // Fields
        xrt_session *xs{nullptr};
 
        bool visible{false};
        bool focused{false};
 
        std::queue<Event> event_queue{};
 
public: // Methods
        Events(xrt_session *xs);
 
        void
        TrackedDeviceActivated(vr::TrackedDeviceIndex_t index);
 
        //! Handles active XRT session events, and pushes corresponding OpenVR events to the event queue.
        xrt_result_t
        HandleSessionEvents(openvr_logger &logger);
 
        //! Polls a single event from the event queue, if no event is available then `false` will be returned.
        bool
        PollEvent(openvr_logger &logger, vr::VREvent_t &out_event, uint32_t event_size);
};
 
}; // namespace xrt::state_trackers::openvr