xref: /openbmc/phosphor-buttons/inc/power_button_profile.hpp (revision d36b6b1d3887f8545b1558f8f0d946a9c9785a72)

#pragma once

#include "config.hpp"

#include <sdbusplus/bus.hpp>
#include <sdbusplus/bus/match.hpp>
#include <sdbusplus/message.hpp>

#include <string>

namespace phosphor::button
{

constexpr auto powerButtonInterface =
    "xyz.openbmc_project.Chassis.Buttons.Power";
namespace sdbusRule = sdbusplus::bus::match::rules;

/**
 * @class PowerButtonProfile
 *
 * Abstract base class for custom power button profiles.
 *
 * Calls a derived class's pressed() and released()
 * functions when the power button is pressed and
 * released.
 */
class PowerButtonProfile
{
  public:
    PowerButtonProfile(sdbusplus::bus_t& bus) :
        bus(bus),
        pressedMatch(bus,
                     sdbusRule::type::signal() + sdbusRule::member("Pressed") +
                         sdbusRule::path(POWER_DBUS_OBJECT_NAME) +
                         sdbusRule::interface(powerButtonInterface),
                     std::bind(&PowerButtonProfile::pressedHandler, this,
                               std::placeholders::_1)),
        releasedMatch(
            bus,
            sdbusRule::type::signal() + sdbusRule::member("Released") +
                sdbusRule::path(POWER_DBUS_OBJECT_NAME) +
                sdbusRule::interface(powerButtonInterface),
            std::bind(&PowerButtonProfile::releasedHandler, this,
                      std::placeholders::_1))
    {}

    virtual ~PowerButtonProfile() = default;

    void pressedHandler(sdbusplus::message_t /* msg*/)
    {
        pressed();
    }

    void releasedHandler(sdbusplus::message_t msg)
    {
        auto time = msg.unpack<uint64_t>();
        released(time);
    }

    virtual void pressed() = 0;

    virtual void released(uint64_t pressTimeMS) = 0;

  protected:
    sdbusplus::bus_t& bus;

  private:
    sdbusplus::bus::match_t pressedMatch;
    sdbusplus::bus::match_t releasedMatch;
};

} // namespace phosphor::button