improv(input-sources): gracefully exit if keyboard layouts data could not be obtained

cosmic-applet-input-sources/src/lib.rs

@@ -9,6 +9,15 @@ mod localize;
 mod window;
 pub fn run() -> cosmic::iced::Result {
     localize::localize();
+
+    let layouts = match xkb_data::keyboard_layouts() {
+        Ok(layouts) => layouts,
+        Err(why) => {
+            tracing::error!("could not get keyboard layouts data: {:?}", why);
+            return Ok(());
+        }
+    };
+
     let (config_handler, config) = match cosmic_config::Config::new(window::ID, CONFIG_VERSION) {
         Ok(config_handler) => {
             let config = match Config::get_entry(&config_handler) {
@@ -46,8 +55,9 @@ pub fn run() -> cosmic::iced::Result {
     let flags = Flags {
         comp_config,
         comp_config_handler,
-        config_handler: config_handler,
-        config: config,
+        config_handler,
+        config,
+        layouts,
     };
     cosmic::applet::run::<Window>(true, flags)
 }

cosmic-applet-input-sources/src/main.rs

@@ -1,3 +1,6 @@
 fn main() -> cosmic::iced::Result {
+    tracing_subscriber::fmt::init();
+    let _ = tracing_log::LogTracer::init();
+
     cosmic_applet_input_sources::run()
 }

cosmic-applet-input-sources/src/window.rs

@@ -38,12 +38,13 @@ pub enum Message {
     SetActiveLayout(ActiveLayout),
     KeyboardSettings,
 }
-#[derive(Clone, Debug)]
+#[derive(Debug)]
 pub struct Flags {
     pub config_handler: Option<cosmic_config::Config>,
     pub config: Config,
     pub comp_config: CosmicCompConfig,
     pub comp_config_handler: Option<cosmic_config::Config>,
+    pub layouts: KeyboardLayouts,
 }
 impl cosmic::Application for Window {
     type Executor = cosmic::SingleThreadExecutor;
@@ -64,10 +65,9 @@ impl cosmic::Application for Window {
         core: Core,
         flags: Self::Flags,
     ) -> (Self, Command<cosmic::app::Message<Self::Message>>) {
-        let layouts = xkb_data::keyboard_layouts().unwrap();
         let window = Window {
             comp_config_handler: flags.comp_config_handler,
-            layouts,
+            layouts: flags.layouts,
             core,
             config: flags.config,
             config_handler: flags.config_handler,