chore: add cosmic app list and cosmic panel buttons

applets/cosmic-panel-button/src/apps_window/imp.rs

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: MPL-2.0-only
+
+use gtk4::{glib, subclass::prelude::*};
+// Object holding the state
+#[derive(Default)]
+
+pub struct CosmicPanelAppButtonWindow {}
+
+// The central trait for subclassing a GObject
+#[glib::object_subclass]
+impl ObjectSubclass for CosmicPanelAppButtonWindow {
+    // `NAME` needs to match `class` attribute of template
+    const NAME: &'static str = "CosmicPanelAppButtonWindow";
+    type Type = super::CosmicPanelAppButtonWindow;
+    type ParentType = gtk4::ApplicationWindow;
+}
+
+// Trait shared by all GObjects
+impl ObjectImpl for CosmicPanelAppButtonWindow {}
+
+// Trait shared by all widgets
+impl WidgetImpl for CosmicPanelAppButtonWindow {}
+
+// Trait shared by all windows
+impl WindowImpl for CosmicPanelAppButtonWindow {}
+
+// Trait shared by all application
+impl ApplicationWindowImpl for CosmicPanelAppButtonWindow {}

applets/cosmic-panel-button/src/apps_window/mod.rs

@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: MPL-2.0-only
+
+use crate::fl;
+use cascade::cascade;
+use cosmic_panel_config::config::CosmicPanelConfig;
+use gtk4::{
+    gio::{self, DesktopAppInfo, Icon},
+    glib::{self, Object},
+    prelude::*,
+    Align, Application, Button, Orientation,
+};
+use std::process::Command;
+
+mod imp;
+
+glib::wrapper! {
+    pub struct CosmicPanelAppButtonWindow(ObjectSubclass<imp::CosmicPanelAppButtonWindow>)
+        @extends gtk4::ApplicationWindow, gtk4::Window, gtk4::Widget,
+        @implements gio::ActionGroup, gio::ActionMap, gtk4::Accessible, gtk4::Buildable,
+                    gtk4::ConstraintTarget, gtk4::Native, gtk4::Root, gtk4::ShortcutManager;
+}
+
+impl CosmicPanelAppButtonWindow {
+    pub fn new(app: &Application, app_desktop_file_name: &str) -> Self {
+        let self_: Self = Object::new(&[("application", app)])
+            .expect("Failed to create `CosmicPanelButtonWindow`.");
+        cascade! {
+            &self_;
+            ..set_width_request(1);
+            ..set_height_request(1);
+            ..set_decorated(false);
+            ..set_resizable(false);
+            ..set_title(Some(app_desktop_file_name));
+            ..add_css_class("root_window");
+        };
+
+        if let Some(apps_desktop_info) = DesktopAppInfo::new(&format!("{}.desktop", app_desktop_file_name)) {
+            let app_button = cascade! {
+                Button::new();
+                ..add_css_class("apps");
+            };
+            let config = CosmicPanelConfig::load_from_env().unwrap_or_default();
+            let icon = apps_desktop_info.icon().unwrap_or_else(|| {
+                Icon::for_string("image-missing").expect("Failed to set default icon")
+            });
+            let container = gtk4::Box::new(Orientation::Horizontal, 0);
+            let image = cascade! {
+                gtk4::Image::from_gicon(&icon);
+                ..set_hexpand(true);
+                ..set_halign(Align::Center);
+                ..set_pixel_size(config.get_applet_icon_size().try_into().unwrap());
+                ..set_tooltip_text(Some(&apps_desktop_info.name()));
+            };
+            container.append(&image);
+
+            app_button.set_child(Some(&container));
+            dbg!(apps_desktop_info.string("Exec").unwrap().as_str());
+            app_button.connect_clicked(move |_| {
+                let _ = Command::new("xdg-shell-wrapper")
+                    .env_remove("WAYLAND_SOCKET")
+                    .arg(apps_desktop_info.string("Exec").unwrap().as_str())
+                    .spawn();
+            });
+            self_.set_child(Some(&app_button));
+        } else {
+            panic!("Requested application is not installed");
+        }
+
+        self_
+    }
+}