[gnome-shell] status/keyboard: Handle IBus engines which don't specify a symbol

[Rui Matos <rtcm src gnome org>]

commit 409af28cb703b50dbd6860d2c27b2e1f9bd14b71
Author: Rui Matos <tiagomatos gmail com>
Date:   Sun Sep 9 22:44:25 2012 +0200

    status/keyboard: Handle IBus engines which don't specify a symbol
    
    In this case, fall back to the 2 or 3 letter language code or, failing
    that, to a keyboard symbol.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=683613

 js/ui/status/keyboard.js |   14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/status/keyboard.js b/js/ui/status/keyboard.js
index 3dd7e3f..ce5824e 100644
--- a/js/ui/status/keyboard.js
+++ b/js/ui/status/keyboard.js
@@ -245,7 +245,7 @@ const InputSourceIndicator = new Lang.Class({
 
                     info.exists = true;
                     info.displayName = language + ' (' + engineDesc.get_longname() + ')';
-                    info.shortName = engineDesc.get_symbol();
+                    info.shortName = this._makeEngineShortName(engineDesc);
                 }
             }
 
@@ -320,6 +320,18 @@ const InputSourceIndicator = new Lang.Class({
         Util.spawn(['gkbd-keyboard-display', '-l', description]);
     },
 
+    _makeEngineShortName: function(engineDesc) {
+        let symbol = engineDesc.get_symbol();
+        if (symbol && symbol[0])
+            return symbol;
+
+        let langCode = engineDesc.get_language().split('_', 1)[0];
+        if (langCode.length == 2 || langCode.length == 3)
+            return langCode.toLowerCase();
+
+        return String.fromCharCode(0x2328); // keyboard glyph
+    },
+
     _containerGetPreferredWidth: function(container, for_height, alloc) {
         // Here, and in _containerGetPreferredHeight, we need to query
         // for the height of all children, but we ignore the results