libcosmic/examples/app_library/app_group/imp.rs
2022-01-21 14:43:01 -05:00

62 lines
1.7 KiB
Rust

use std::cell::RefCell;
use std::rc::Rc;
use gdk4::glib::ParamSpecBoxed;
use glib::{ParamFlags, ParamSpec, Value};
use gtk4::glib;
use gtk4::prelude::*;
use gtk4::subclass::prelude::*;
use once_cell::sync::Lazy;
use super::BoxedAppGroupType;
// Object holding the state
#[derive(Default)]
pub struct AppGroup {
pub inner: Rc<RefCell<BoxedAppGroupType>>,
}
// The central trait for subclassing a GObject
#[glib::object_subclass]
impl ObjectSubclass for AppGroup {
const NAME: &'static str = "AppGroup";
type Type = super::AppGroup;
type ParentType = glib::Object;
}
// Trait shared by all GObjects
impl ObjectImpl for AppGroup {
fn properties() -> &'static [ParamSpec] {
static PROPERTIES: Lazy<Vec<ParamSpec>> = Lazy::new(|| {
vec![ParamSpecBoxed::new(
// Name
"inner",
// Nickname
"inner",
// Short description
"inner",
BoxedAppGroupType::static_type(),
// The property can be read and written to
ParamFlags::READWRITE,
)]
});
PROPERTIES.as_ref()
}
fn set_property(&self, _obj: &Self::Type, _id: usize, value: &Value, pspec: &ParamSpec) {
match pspec.name() {
"inner" => {
let inner = value.get().expect("The value needs to be of type `u32`.");
self.inner.replace(inner);
}
_ => unimplemented!(),
}
}
fn property(&self, _obj: &Self::Type, _id: usize, pspec: &ParamSpec) -> Value {
match pspec.name() {
"inner" => self.inner.borrow().to_value(),
_ => unimplemented!(),
}
}
}