chore: add cosmic app list and cosmic panel buttons

applets/cosmic-panel-button/src/utils.rs

@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: MPL-2.0-only
+
+use std::path::PathBuf;
+
+use gtk4::glib;
+use std::future::Future;
+
+pub fn data_path(id: &str) -> PathBuf {
+    let mut path = glib::user_data_dir();
+    path.push(id);
+    std::fs::create_dir_all(&path).expect("Could not create directory.");
+    path.push("data.json");
+    path
+}
+
+pub fn thread_context() -> glib::MainContext {
+    glib::MainContext::thread_default().unwrap_or_else(|| glib::MainContext::new())
+}
+
+pub fn block_on<F>(future: F) -> F::Output
+where
+    F: Future,
+{
+    let ctx = thread_context();
+    ctx.with_thread_default(|| ctx.block_on(future)).unwrap()
+}