990e2e291b
This refactors the calendar widget to use `jiff` instead of `chrono`. Also mostly matches the design of the widget to the time applet.
121 lines
3.2 KiB
Rust
121 lines
3.2 KiB
Rust
// Copyright 2024 System76 <info@system76.com>
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// SPDX-License-Identifier: MPL-2.0
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//! Calendar widget example
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use cosmic::app::{Core, Settings, Task};
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use cosmic::widget::calendar::CalendarModel;
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use cosmic::{ApplicationExt, Element, executor, iced};
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use jiff::civil::{Date, Weekday};
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/// Runs application with these settings
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#[rustfmt::skip]
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fn main() -> Result<(), Box<dyn std::error::Error>> {
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cosmic::app::run::<App>(Settings::default(), ())?;
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Ok(())
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}
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/// Messages that are used specifically by our [`App`].
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#[derive(Clone, Debug)]
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pub enum Message {
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DateSelected(Date),
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PrevMonth,
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NextMonth,
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}
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/// The [`App`] stores application-specific state.
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pub struct App {
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core: Core,
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calendar_model: CalendarModel,
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}
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/// Implement [`cosmic::Application`] to integrate with COSMIC.
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impl cosmic::Application for App {
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/// Default async executor to use with the app.
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type Executor = executor::Default;
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/// Argument received [`cosmic::Application::new`].
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type Flags = ();
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/// Message type specific to our [`App`].
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type Message = Message;
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/// The unique application ID to supply to the window manager.
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const APP_ID: &'static str = "org.cosmic.AppDemo";
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fn core(&self) -> &Core {
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&self.core
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}
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fn core_mut(&mut self) -> &mut Core {
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&mut self.core
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}
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/// Creates the application, and optionally emits task on initialize.
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fn init(core: Core, _input: Self::Flags) -> (Self, Task<Self::Message>) {
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let mut app = App {
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core,
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calendar_model: CalendarModel::now(),
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};
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let command = app.update_title();
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(app, command)
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}
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/// Handle application events here.
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fn update(&mut self, message: Self::Message) -> Task<Self::Message> {
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match message {
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Message::DateSelected(date) => {
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self.calendar_model.selected = date;
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}
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Message::PrevMonth => {
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self.calendar_model.show_prev_month();
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}
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Message::NextMonth => {
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self.calendar_model.show_next_month();
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}
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}
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println!("Date selected: {:?}", &self.calendar_model.selected);
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Task::none()
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}
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/// Creates a view after each update.
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fn view(&self) -> Element<'_, Self::Message> {
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let mut content = cosmic::widget::column().spacing(12);
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let calendar = cosmic::widget::calendar(
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&self.calendar_model,
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|date| Message::DateSelected(date),
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|| Message::PrevMonth,
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|| Message::NextMonth,
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Weekday::Sunday,
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);
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content = content.push(calendar);
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let centered = cosmic::widget::container(content)
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.width(iced::Length::Fill)
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.height(iced::Length::Shrink)
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.align_x(iced::Alignment::Center)
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.align_y(iced::Alignment::Center);
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Element::from(centered)
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}
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}
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impl App
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where
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Self: cosmic::Application,
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{
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fn update_title(&mut self) -> cosmic::app::Task<Message> {
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self.set_header_title(String::from("Calendar Demo"));
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self.set_window_title(
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String::from("Calendar Demo"),
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self.core.main_window_id().unwrap(),
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)
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}
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}
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