feat: test multi layershell feature

Cargo.toml

@@ -6,10 +6,16 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-iced = { version = "0.12", features = ["tokio", "debug", "image", "advanced"] }
+iced = { version = "0.12", features = [
+	"tokio",
+	"debug",
+	"image",
+	"advanced",
+	"svg",
+] }
 #iced_native = "0.12"
 iced_runtime = "0.12"
-iced_layershell = "0.3.0"
+iced_layershell = "0.4.0-rc1"
 tokio = { version = "1.39", features = ["full"] }
 iced_futures = "0.12.0"
 env_logger = "0.11.5"
@@ -23,3 +29,8 @@ zbus = { version = "4.4.0", default-features = false, features = ["tokio"] }
 tracing-subscriber = "0.3.18"
 anyhow = "1.0.86"
 alsa = "0.9.0"
+
+gio = "0.20.0"
+regex = "1.10.5"
+xdg = "2.5.2"
+url = "2.5.2"

src/launcher.rs

@@ -0,0 +1,149 @@
+mod applications;
+
+use applications::{all_apps, App};
+use iced::widget::{column, scrollable, text_input};
+use iced::{Command, Element, Event, Length};
+use iced_runtime::command::Action;
+use iced_runtime::window::Action as WindowAction;
+
+use super::Message;
+
+use std::sync::LazyLock;
+
+static SCROLLABLE_ID: LazyLock<scrollable::Id> = LazyLock::new(scrollable::Id::unique);
+pub static INPUT_ID: LazyLock<text_input::Id> = LazyLock::new(text_input::Id::unique);
+
+pub struct Launcher {
+    text: String,
+    apps: Vec<App>,
+    scrollpos: usize,
+    pub should_delete: bool,
+}
+
+impl Launcher {
+    pub fn new() -> Self {
+        Self {
+            text: "".to_string(),
+            apps: all_apps(),
+            scrollpos: 0,
+            should_delete: false,
+        }
+    }
+
+    pub fn focus_input(&self) -> Command<super::Message> {
+        text_input::focus(INPUT_ID.clone())
+    }
+
+    pub fn update(&mut self, message: Message, id: iced::window::Id) -> Command<Message> {
+        use iced::keyboard::key::Named;
+        use iced_runtime::keyboard;
+        match message {
+            Message::SearchSubmit => {
+                let re = regex::Regex::new(&self.text).ok();
+                let index = self
+                    .apps
+                    .iter()
+                    .enumerate()
+                    .filter(|(_, app)| {
+                        if re.is_none() {
+                            return true;
+                        }
+                        let re = re.as_ref().unwrap();
+
+                        re.is_match(app.title().to_lowercase().as_str())
+                            || re.is_match(app.description().to_lowercase().as_str())
+                    })
+                    .enumerate()
+                    .find(|(index, _)| *index == self.scrollpos);
+                if let Some((_, (_, app))) = index {
+                    app.launch();
+                    self.should_delete = true;
+                    Command::single(Action::Window(WindowAction::Close(id)))
+                } else {
+                    Command::none()
+                }
+            }
+            Message::SearchEditChanged(edit) => {
+                self.scrollpos = 0;
+                self.text = edit;
+                Command::none()
+            }
+            Message::Launch(index) => {
+                self.apps[index].launch();
+                self.should_delete = true;
+                Command::single(Action::Window(WindowAction::Close(id)))
+            }
+            Message::IcedEvent(event) => {
+                let mut len = self.apps.len();
+
+                let re = regex::Regex::new(&self.text).ok();
+                if let Some(re) = re {
+                    len = self
+                        .apps
+                        .iter()
+                        .filter(|app| {
+                            re.is_match(app.title().to_lowercase().as_str())
+                                || re.is_match(app.description().to_lowercase().as_str())
+                        })
+                        .count();
+                }
+                if let Event::Keyboard(keyboard::Event::KeyReleased { key, .. })
+                | Event::Keyboard(keyboard::Event::KeyPressed { key, .. }) = event
+                {
+                    match key {
+                        keyboard::Key::Named(Named::ArrowUp) => {
+                            if self.scrollpos == 0 {
+                                return Command::none();
+                            }
+                            self.scrollpos -= 1;
+                        }
+                        keyboard::Key::Named(Named::ArrowDown) => {
+                            if self.scrollpos >= len - 1 {
+                                return Command::none();
+                            }
+                            self.scrollpos += 1;
+                        }
+                        keyboard::Key::Named(Named::Escape) => {
+                            self.should_delete = true;
+                            return Command::single(Action::Window(WindowAction::Close(id)));
+                        }
+                        _ => {}
+                    }
+                }
+                text_input::focus(INPUT_ID.clone())
+            }
+            _ => Command::none(),
+        }
+    }
+
+    pub fn view(&self) -> Element<Message> {
+        let re = regex::Regex::new(&self.text).ok();
+        let text_ip: Element<Message> = text_input("put the launcher name", &self.text)
+            .padding(10)
+            .on_input(Message::SearchEditChanged)
+            .on_submit(Message::SearchSubmit)
+            .id(INPUT_ID.clone())
+            .into();
+        let bottom_vec: Vec<Element<Message>> = self
+            .apps
+            .iter()
+            .enumerate()
+            .filter(|(_, app)| {
+                if re.is_none() {
+                    return true;
+                }
+                let re = re.as_ref().unwrap();
+
+                re.is_match(app.title().to_lowercase().as_str())
+                    || re.is_match(app.description().to_lowercase().as_str())
+            })
+            .enumerate()
+            .filter(|(index, _)| *index >= self.scrollpos)
+            .map(|(filter_index, (index, app))| app.view(index, filter_index == self.scrollpos))
+            .collect();
+        let bottom: Element<Message> = scrollable(column(bottom_vec).width(Length::Fill))
+            .id(SCROLLABLE_ID.clone())
+            .into();
+        column![text_ip, bottom].into()
+    }
+}

src/launcher/applications.rs

@@ -0,0 +1,179 @@
+use std::path::PathBuf;
+use std::str::FromStr;
+
+use gio::{AppLaunchContext, DesktopAppInfo};
+
+use gio::prelude::*;
+use iced::widget::{button, column, image, row, svg, text};
+use iced::{theme, Pixels};
+use iced::{Element, Length};
+
+use super::Message;
+
+static DEFAULT_ICON: &[u8] = include_bytes!("../../misc/text-plain.svg");
+
+#[allow(unused)]
+#[derive(Debug, Clone)]
+pub struct App {
+    appinfo: DesktopAppInfo,
+    name: String,
+    descriptions: Option<gio::glib::GString>,
+    pub categrades: Option<Vec<String>>,
+    pub actions: Option<Vec<gio::glib::GString>>,
+    icon: Option<PathBuf>,
+}
+
+impl App {
+    pub fn launch(&self) {
+        if let Err(err) = self.appinfo.launch(&[], AppLaunchContext::NONE) {
+            println!("{}", err);
+        };
+    }
+
+    pub fn title(&self) -> &str {
+        &self.name
+    }
+
+    fn icon(&self) -> Element<Message> {
+        match &self.icon {
+            Some(path) => {
+                if path
+                    .as_os_str()
+                    .to_str()
+                    .is_some_and(|pathname| pathname.ends_with("png"))
+                {
+                    image(image::Handle::from_path(path))
+                        .width(Length::Fixed(80.))
+                        .height(Length::Fixed(80.))
+                        .into()
+                } else {
+                    svg(svg::Handle::from_path(path))
+                        .width(Length::Fixed(80.))
+                        .height(Length::Fixed(80.))
+                        .into()
+                }
+            }
+            None => svg(svg::Handle::from_memory(DEFAULT_ICON))
+                .width(Length::Fixed(80.))
+                .height(Length::Fixed(80.))
+                .into(),
+        }
+    }
+
+    pub fn description(&self) -> &str {
+        match &self.descriptions {
+            None => "",
+            Some(description) => description,
+        }
+    }
+
+    pub fn view(&self, index: usize, selected: bool) -> Element<Message> {
+        button(
+            row![
+                self.icon(),
+                column![
+                    text(self.title()).size(Pixels::from(20)),
+                    text(self.description()).size(Pixels::from(10))
+                ]
+                .spacing(4)
+            ]
+            .spacing(10),
+        )
+        .on_press(Message::Launch(index))
+        .width(Length::Fill)
+        .height(Length::Fixed(85.))
+        .style(if selected {
+            theme::Button::Primary
+        } else {
+            theme::Button::Secondary
+        })
+        .into()
+    }
+}
+
+static ICONS_SIZE: &[&str] = &["256x256", "128x128"];
+
+static THEMES_LIST: &[&str] = &["breeze", "Adwaita"];
+
+fn get_icon_path_from_xdgicon(iconname: &str) -> Option<PathBuf> {
+    let scalable_icon_path =
+        xdg::BaseDirectories::with_prefix("icons/hicolor/scalable/apps").unwrap();
+    if let Some(iconpath) = scalable_icon_path.find_data_file(format!("{iconname}.svg")) {
+        return Some(iconpath);
+    }
+    for prefix in ICONS_SIZE {
+        let iconpath =
+            xdg::BaseDirectories::with_prefix(&format!("icons/hicolor/{prefix}/apps")).unwrap();
+        if let Some(iconpath) = iconpath.find_data_file(format!("{iconname}.png")) {
+            return Some(iconpath);
+        }
+    }
+    let pixmappath = xdg::BaseDirectories::with_prefix("pixmaps").unwrap();
+    if let Some(iconpath) = pixmappath.find_data_file(format!("{iconname}.svg")) {
+        return Some(iconpath);
+    }
+    if let Some(iconpath) = pixmappath.find_data_file(format!("{iconname}.png")) {
+        return Some(iconpath);
+    }
+    for themes in THEMES_LIST {
+        let iconpath =
+            xdg::BaseDirectories::with_prefix(&format!("icons/{themes}/apps/48")).unwrap();
+        if let Some(iconpath) = iconpath.find_data_file(format!("{iconname}.svg")) {
+            return Some(iconpath);
+        }
+        let iconpath =
+            xdg::BaseDirectories::with_prefix(&format!("icons/{themes}/apps/64")).unwrap();
+        if let Some(iconpath) = iconpath.find_data_file(format!("{iconname}.svg")) {
+            return Some(iconpath);
+        }
+    }
+    None
+}
+
+fn get_icon_path(iconname: &str) -> Option<PathBuf> {
+    if iconname.contains('/') {
+        PathBuf::from_str(iconname).ok()
+    } else {
+        get_icon_path_from_xdgicon(iconname)
+    }
+}
+
+pub fn all_apps() -> Vec<App> {
+    let re = regex::Regex::new(r"([a-zA-Z]+);").unwrap();
+    gio::AppInfo::all()
+        .iter()
+        .filter(|app| app.should_show() && app.downcast_ref::<gio::DesktopAppInfo>().is_some())
+        .map(|app| app.clone().downcast::<gio::DesktopAppInfo>().unwrap())
+        .map(|app| App {
+            appinfo: app.clone(),
+            name: app.name().to_string(),
+            descriptions: app.description(),
+            categrades: match app.categories() {
+                None => None,
+                Some(categrades) => {
+                    let tomatch = categrades.to_string();
+                    let tips = re
+                        .captures_iter(&tomatch)
+                        .map(|unit| unit.get(1).unwrap().as_str().to_string())
+                        .collect();
+                    Some(tips)
+                }
+            },
+            actions: {
+                let actions = app.list_actions();
+                if actions.is_empty() {
+                    None
+                } else {
+                    Some(actions)
+                }
+            },
+            icon: match &app.icon() {
+                None => None,
+                Some(icon) => {
+                    let iconname = gio::prelude::IconExt::to_string(icon).unwrap();
+                    get_icon_path(iconname.as_str())
+                }
+            },
+        })
+        .collect()
+}