Waybar/src/util/prepare_for_sleep.cpp

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#include "util/prepare_for_sleep.h"
#include <gio/gio.h>
#include <spdlog/spdlog.h>
namespace {
class PrepareForSleep {
private:
PrepareForSleep() {
GError *error = NULL;
login1_connection = g_bus_get_sync(G_BUS_TYPE_SYSTEM, NULL, &error);
if (!login1_connection) {
spdlog::warn("Unable to connect to the SYSTEM Bus!...");
} else {
login1_id = g_dbus_connection_signal_subscribe(
login1_connection, "org.freedesktop.login1", "org.freedesktop.login1.Manager",
"PrepareForSleep", "/org/freedesktop/login1", NULL, G_DBUS_SIGNAL_FLAGS_NONE,
prepareForSleep_cb, this, NULL);
}
}
static void prepareForSleep_cb(GDBusConnection *system_bus, const gchar *sender_name,
const gchar *object_path, const gchar *interface_name,
const gchar *signal_name, GVariant *parameters,
gpointer user_data) {
if (g_variant_is_of_type(parameters, G_VARIANT_TYPE("(b)"))) {
gboolean sleeping;
g_variant_get(parameters, "(b)", &sleeping);
PrepareForSleep *self = static_cast<PrepareForSleep *>(user_data);
self->signal.emit(sleeping);
}
}
public:
static PrepareForSleep &GetInstance() {
static PrepareForSleep instance;
return instance;
}
waybar::SafeSignal<bool> signal;
private:
guint login1_id;
GDBusConnection *login1_connection;
};
} // namespace
waybar::SafeSignal<bool> &waybar::util::prepare_for_sleep() {
return PrepareForSleep::GetInstance().signal;
}