Hi, the following program :

use iced::{executor, widget::text, Command, Theme};
use iced_layershell::{
    Application,
    settings::{Settings, LayerShellSettings},
};

struct BarExample;

impl Application for BarExample {
    type Executor = executor::Default;

    type Message = ();

    type Theme = Theme;

    type Flags = ();

    fn new(_flags: Self::Flags) -> (Self, iced::Command<Self::Message>) {
        (Self, Command::none())
    }

    fn namespace(&self) -> String {
        "BarExample".into()
    }

    fn update(&mut self, _message: Self::Message) -> iced::Command<Self::Message> {
        Command::none()
    }

    fn view(&self) -> iced::Element<'_, Self::Message, Self::Theme, iced::Renderer> {
        text("hi").into()
    }
}

fn main() -> Result<(), iced_layershell::Error> {
    BarExample::run(Settings {
        layer_settings: LayerShellSettings {
            size: Some((1356, 30)),
            ..Default::default()
        },
        ..Default::default()
    })
}

results in a 15% cpu usage on Hyprland. It also makes Hyprland use ~75x more cpu time than usual.
I created a flamegraph :

and it looks like most of the time is spent in the function wayland_client::event_queue::EventQueue<State>::roundtrip.

I'm using iced version 0.12.1, and iced_layershell version 0.2.2, and Hyprland version 0.39.1

Support popup in multiwindow

• give popup an unique id in layershellev, every time request a popup , finally pass this request to layershelllev, and generate a popup
• draw window in iced_layershell, and save a hashmap about the relation between uniqueid and iced::window::id, (lazy static)
• users can get if the id in view request is a popup, and who request it , draw the view of the popup
• handle the event of keyboard leave. when keyboard leave the surface, destroy the popup

When running the counter example on Sway window manager clicking the left or right buttons leads to a panic.

Two errors seem to be reported depending on if the panic is immediate or not.

If the panic isn't immediate the window seems to be dismissed with the following error spamming the logs:
Protocol error 1 on object zwlr_layer_surface_v1@16:

If the panic is immediate it displays the errors:

zwlr_layer_surface_v1@16: error 1: width 0 requested without setting left and right anchors
khronos-egl-6.0.0/src/lib.rs:1173:42:
called `Option::unwrap()` on a `None` value

this make it can be used with iced

still need to be done

• hover event
• keyboard event
• fractal scale (need help)
• ime (Wait for new iced being released)
• virtual keyboard
• support keyboard repeat
• support touch event(need to be tested)

other things

• example, like set anchor, set size, move it in eight corners. such kind example

finally

• use this crate make a layershell launcher with iced

etc

• bind ext-session-shell with the same way