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// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::Initable;
use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::{boxed::Box as Box_, fmt, mem::transmute};

glib::wrapper! {
    /// [`PowerProfileMonitor`][crate::PowerProfileMonitor] makes it possible for applications as well as OS components
    /// to monitor system power profiles and act upon them. It currently only exports
    /// whether the system is in “Power Saver” mode (known as “Low Power” mode on
    /// some systems).
    ///
    /// When in “Low Power” mode, it is recommended that applications:
    /// - disable automatic downloads;
    /// - reduce the rate of refresh from online sources such as calendar or
    ///  email synchronisation;
    /// - reduce the use of expensive visual effects.
    ///
    /// It is also likely that OS components providing services to applications will
    /// lower their own background activity, for the sake of the system.
    ///
    /// There are a variety of tools that exist for power consumption analysis, but those
    /// usually depend on the OS and hardware used. On Linux, one could use `upower` to
    /// monitor the battery discharge rate, `powertop` to check on the background activity
    /// or activity at all), `sysprof` to inspect CPU usage, and `intel_gpu_time` to
    /// profile GPU usage.
    ///
    /// Don't forget to disconnect the [`notify`][struct@crate::PowerProfileMonitor#notify]::power-saver-enabled
    /// signal, and unref the [`PowerProfileMonitor`][crate::PowerProfileMonitor] itself when exiting.
    ///
    /// ## Properties
    ///
    ///
    /// #### `power-saver-enabled`
    ///  Whether “Power Saver” mode is enabled on the system.
    ///
    /// Readable
    ///
    /// # Implements
    ///
    /// [`PowerProfileMonitorExt`][trait@crate::prelude::PowerProfileMonitorExt], [`InitableExt`][trait@crate::prelude::InitableExt]
    #[doc(alias = "GPowerProfileMonitor")]
    pub struct PowerProfileMonitor(Interface<ffi::GPowerProfileMonitor, ffi::GPowerProfileMonitorInterface>) @requires Initable;

    match fn {
        type_ => || ffi::g_power_profile_monitor_get_type(),
    }
}

impl PowerProfileMonitor {
    pub const NONE: Option<&'static PowerProfileMonitor> = None;

    /// Gets a reference to the default [`PowerProfileMonitor`][crate::PowerProfileMonitor] for the system.
    ///
    /// # Returns
    ///
    /// a new reference to the default [`PowerProfileMonitor`][crate::PowerProfileMonitor]
    #[doc(alias = "g_power_profile_monitor_dup_default")]
    #[doc(alias = "dup_default")]
    pub fn get_default() -> PowerProfileMonitor {
        unsafe { from_glib_full(ffi::g_power_profile_monitor_dup_default()) }
    }
}

/// Trait containing all [`struct@PowerProfileMonitor`] methods.
///
/// # Implementors
///
/// [`PowerProfileMonitor`][struct@crate::PowerProfileMonitor]
pub trait PowerProfileMonitorExt: 'static {
    /// Gets whether the system is in “Power Saver” mode.
    ///
    /// You are expected to listen to the
    /// [`notify`][struct@crate::PowerProfileMonitor#notify]::power-saver-enabled signal to know when the profile has
    /// changed.
    ///
    /// # Returns
    ///
    /// Whether the system is in “Power Saver” mode.
    #[doc(alias = "g_power_profile_monitor_get_power_saver_enabled")]
    #[doc(alias = "get_power_saver_enabled")]
    fn is_power_saver_enabled(&self) -> bool;

    #[cfg(any(feature = "v2_70", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_70")))]
    #[doc(alias = "power-saver-enabled")]
    fn connect_power_saver_enabled_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<PowerProfileMonitor>> PowerProfileMonitorExt for O {
    fn is_power_saver_enabled(&self) -> bool {
        unsafe {
            from_glib(ffi::g_power_profile_monitor_get_power_saver_enabled(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    #[cfg(any(feature = "v2_70", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_70")))]
    fn connect_power_saver_enabled_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_power_saver_enabled_trampoline<
            P: IsA<PowerProfileMonitor>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GPowerProfileMonitor,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(PowerProfileMonitor::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::power-saver-enabled\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_power_saver_enabled_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl fmt::Display for PowerProfileMonitor {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("PowerProfileMonitor")
    }
}