status/keyboard: Only change the current source setting if it changed

This avoids all the work that goes on in various processes when
switching input sources if the activated source is the currently
configured one.

https://bugzilla.gnome.org/show_bug.cgi?id=691414

diff --git a/js/ui/status/keyboard.js b/js/ui/status/keyboard.js
index c1b4ea1e23203dbcbf39e458b19679681ce767d4..590d2eeff3cb27338f0fa4d3cf89c7832c6484a6 100644 (file)
--- a/js/ui/status/keyboard.js
+++ b/js/ui/status/keyboard.js
@@ -470,6 +470,8 @@ const InputSourceIndicator = new Lang.Class({
             let is = new InputSource(type, id, displayName, shortName, i);
 
             is.connect('activate', Lang.bind(this, function() {
+                if (this._currentSource.index == is.index)
+                    return;
                 this._settings.set_value(KEY_CURRENT_INPUT_SOURCE,
                                          GLib.Variant.new_uint32(is.index));
             }));