[gnome-settings-daemon] media-keys: Handle "toggle brightness" events

[Bastien Nocera <hadess src gnome org>]

commit 7ae556272215ae198db06e58e2988b37c52c34d8
Author: Steve Magoun <steve magoun canonical com>
Date:   Thu Aug 23 14:45:14 2012 -0400

    media-keys: Handle "toggle brightness" events
    
    Toggle would lower the brightness, as:
    KEYBOARD_BRIGHTNESS_TOGGLE_KEY != KEYBOARD_BRIGHTNESS_TOGGLE_KEY
    
    https://bugzilla.gnome.org/show_bug.cgi?id=682564

 plugins/media-keys/gsd-media-keys-manager.c |   18 +++++++++++++++++-
 1 files changed, 17 insertions(+), 1 deletions(-)
---
diff --git a/plugins/media-keys/gsd-media-keys-manager.c b/plugins/media-keys/gsd-media-keys-manager.c
index 73af48b..2228519 100644
--- a/plugins/media-keys/gsd-media-keys-manager.c
+++ b/plugins/media-keys/gsd-media-keys-manager.c
@@ -1733,15 +1733,31 @@ static void
 do_keyboard_brightness_action (GsdMediaKeysManager *manager,
                                MediaKeyType type)
 {
+        const char *cmd;
+
         if (manager->priv->connection == NULL ||
             manager->priv->power_keyboard_proxy == NULL) {
                 g_warning ("No existing D-Bus connection trying to handle power keys");
                 return;
         }
 
+        switch (type) {
+        case KEYBOARD_BRIGHTNESS_UP_KEY:
+                cmd = "StepUp";
+                break;
+        case KEYBOARD_BRIGHTNESS_DOWN_KEY:
+                cmd = "StepDown";
+                break;
+        case KEYBOARD_BRIGHTNESS_TOGGLE_KEY:
+                cmd = "Toggle";
+                break;
+        default:
+                g_assert_not_reached ();
+        }
+
         /* call into the power plugin */
         g_dbus_proxy_call (manager->priv->power_keyboard_proxy,
-                           type == KEYBOARD_BRIGHTNESS_UP_KEY ? "StepUp" : "StepDown",
+                           cmd,
                            NULL,
                            G_DBUS_CALL_FLAGS_NONE,
                            -1,