keyboard: use fallback layout if failing to load

src/backend/common.rs

@@ -68,10 +68,14 @@ where
 
         app.screens.clear();
         let data = if let Some(wl) = wl.as_mut() {
-            keymap = get_keymap_wl().ok();
+            keymap = get_keymap_wl()
+                .map_err(|f| log::warn!("Could not load keyboard layout: {}", f))
+                .ok();
             crate::overlays::screen::create_screens_wayland(wl, app)?
         } else {
-            keymap = get_keymap_x11().ok();
+            keymap = get_keymap_x11()
+                .map_err(|f| log::warn!("Could not load keyboard layout: {}", f))
+                .ok();
             match crate::overlays::screen::create_screens_x11pw(app) {
                 Ok(data) => data,
                 Err(e) => {

src/hid/x11.rs

@@ -10,6 +10,11 @@ pub fn get_keymap_x11() -> anyhow::Result<XkbKeymap> {
 
     let (conn, _) = xcb::Connection::connect(None)?;
     let device_id = get_core_keyboard_device_id(&conn);
+    if device_id == -1 {
+        return Err(anyhow::anyhow!(
+            "get_core_keyboard_device_id returned -1. Check your XKB installation."
+        ));
+    }
     let keymap = keymap_new_from_device(&context, &conn, device_id, xkb::KEYMAP_COMPILE_NO_FLAGS);
 
     Ok(XkbKeymap { context, keymap })

src/res/keyboard.yaml

@@ -62,29 +62,51 @@ macros:
 # Value: Array of strings. 0th element is the upper row, 1st element is lower row.
 # For empty labels, use [] (do not use ~)
 labels:
-    "Escape":       ["Esc"]
-    "Prior":        ["PgUp"]
-    "Next":         ["PgDn"]
-    "NumLock":      ["Num"]
-    "Space":        []
-    "LAlt":         ["Alt"]
-    "LCtrl":        ["Ctrl"]
-    "RCtrl":        ["Ctrl"]
-    "LSuper":       ["Super"]
-    "RSuper":       ["Super"]
-    "LShift":       ["Shift"]
-    "RShift":       ["Shift"]
-    "Insert":       ["Ins"]
-    "Delete":       ["Del"]
-    "BackSpace":    ["<<"]
-    "KP_Divide":    [" /"]
-    "KP_Add":       [" +"]
-    "KP_Multiply":  [" *"]
-    "KP_Decimal":   [" ."]
-    "KP_Subtract":  [" -"]
-    "KP_Enter":     ["Ent"]
-    "Print":        ["Prn"]
-    "Scroll":       ["Scr"]
-    "Pause":        ["Brk"]
-    "XF86Favorites": ["Rofi"]
+    "Escape":         ["Esc"]
+    "Prior":          ["PgUp"]
+    "Next":           ["PgDn"]
+    "NumLock":        ["Num"]
+    "Space":          []
+    "LAlt":           ["Alt"]
+    "LCtrl":          ["Ctrl"]
+    "RCtrl":          ["Ctrl"]
+    "LSuper":         ["Super"]
+    "RSuper":         ["Super"]
+    "LShift":         ["Shift"]
+    "RShift":         ["Shift"]
+    "Insert":         ["Ins"]
+    "Delete":         ["Del"]
+    "BackSpace":      ["<<"]
+    "KP_Divide":      [" /"]
+    "KP_Add":         [" +"]
+    "KP_Multiply":    [" *"]
+    "KP_Decimal":     [" ."]
+    "KP_Subtract":    [" -"]
+    "KP_Enter":       ["Ent"]
+    "Print":          ["Prn"]
+    "Scroll":         ["Scr"]
+    "Pause":          ["Brk"]
+    "XF86Favorites":  ["Menu"] # fallback labels below
+    "N1":             ["1", "!"]
+    "N2":             ["2", "@"]
+    "N3":             ["3", "#"]
+    "N4":             ["4", "$"]
+    "N5":             ["5", "%"]
+    "N6":             ["6", "^"]
+    "N7":             ["7", "&"]
+    "N8":             ["8", "*"]
+    "N9":             ["9", "("]
+    "N0":             ["0", ")"]
+    "Minus":          ["-", "_"]
+    "Plus":           ["=", "+"]
+    "Comma":          [" ,",  "<"]
+    "Period":         [" .",  ">"]
+    "Oem1":           [" ;",  ":"]
+    "Oem2":           [" /",  "?"]
+    "Oem3":           ["`", "~"]
+    "Oem4":           [" [",  "{"]
+    "Oem5":           [" \\", "|"]
+    "Oem6":           [" ]",  "}"]
+    "Oem7":           [" '",  "\""]
+    "Oem102":         [" \\", "|"]