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use std::cell::RefCell;
use std::convert::TryInto;
use glib::closure;
use gtk::prelude::*;
use gtk::subclass::prelude::*;
use gtk::{gio, glib};
use indexmap::map::IndexMap;
use super::{SkTask, SkTaskStatus};
mod imp {
use super::*;
#[derive(Debug, Default)]
pub struct SkTaskModel {
pub map: RefCell<IndexMap<String, SkTask>>,
}
#[glib::object_subclass]
impl ObjectSubclass for SkTaskModel {
const NAME: &'static str = "SkTaskModel";
type Type = super::SkTaskModel;
type Interfaces = (gio::ListModel,);
}
impl ObjectImpl for SkTaskModel {}
impl ListModelImpl for SkTaskModel {
fn item_type(&self) -> glib::Type {
SkTask::static_type()
}
fn n_items(&self) -> u32 {
self.map.borrow().len() as u32
}
fn item(&self, position: u32) -> Option<glib::Object> {
self.map
.borrow()
.get_index(position.try_into().unwrap())
.map(|(_, o)| o.clone().upcast::<glib::Object>())
}
}
}
glib::wrapper! {
pub struct SkTaskModel(ObjectSubclass<imp::SkTaskModel>) @implements gio::ListModel;
}
impl SkTaskModel {
pub fn new() -> Self {
glib::Object::new()
}
pub fn add_task(&self, task: &SkTask) {
let pos = {
let mut map = self.imp().map.borrow_mut();
if map.contains_key(&task.uuid()) {
warn!("Task {:?} already exists in model", task.uuid());
return;
}
map.insert(task.uuid(), task.clone());
(map.len() - 1) as u32
};
self.items_changed(pos, 0, 1);
}
pub fn remove_task(&self, task: &SkTask) {
let pos = {
let mut map = self.imp().map.borrow_mut();
match map.get_index_of(&task.uuid()) {
Some(pos) => {
map.shift_remove(&task.uuid());
Some(pos)
}
None => {
warn!("Task {:?} not found in model", task.uuid());
None
}
}
};
if let Some(pos) = pos {
self.items_changed(pos.try_into().unwrap(), 1, 0);
}
}
pub fn task(&self, uuid: &str) -> Option<SkTask> {
self.imp().map.borrow().get(uuid).cloned()
}
pub fn remove_completed_tasks(&self, keep: u32) {
let completed_expression =
gtk::PropertyExpression::new(SkTask::static_type(), gtk::Expression::NONE, "status")
.chain_closure::<bool>(closure!(|_: Option<glib::Object>, status: SkTaskStatus| {
status.is_completed()
}));
let filter = gtk::BoolFilter::new(Some(&completed_expression));
let filtermodel = gtk::FilterListModel::new(Some(self.clone()), Some(filter));
while filtermodel.n_items() > keep {
let task = filtermodel.item(0).unwrap().downcast::<SkTask>().unwrap();
self.remove_task(&task);
}
}
}
impl Default for SkTaskModel {
fn default() -> Self {
Self::new()
}
}