[mutter] MetaInputSettingsNative: allow unsetting click and scroll methods

[Rui Matos <rtcm src gnome org>]

commit fb5e591bc93dbbe5a37f7ad03652e7f89896abab
Author: Rui Matos <tiagomatos gmail com>
Date:   Thu Oct 27 19:08:08 2016 +0200

    MetaInputSettingsNative: allow unsetting click and scroll methods
    
    Checking for supported methods isn't needed since libinput will just
    error out and do nothing itself if a requested method isn't supported
    and, in fact, this logic was preventing the enum values 0 from being
    set.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=771744

 src/backends/native/meta-input-settings-native.c |   18 ++++--------------
 1 files changed, 4 insertions(+), 14 deletions(-)
---
diff --git a/src/backends/native/meta-input-settings-native.c 
b/src/backends/native/meta-input-settings-native.c
index 7567543..5a142f7 100644
--- a/src/backends/native/meta-input-settings-native.c
+++ b/src/backends/native/meta-input-settings-native.c
@@ -141,28 +141,18 @@ static gboolean
 device_set_scroll_method (struct libinput_device             *libinput_device,
                           enum libinput_config_scroll_method  method)
 {
-  enum libinput_config_scroll_method supported;
-
-  supported = libinput_device_config_scroll_get_methods (libinput_device);
-
-  if (method & supported)
+  enum libinput_config_status status =
     libinput_device_config_scroll_set_method (libinput_device, method);
-
-  return (method & supported) != 0;
+  return status == LIBINPUT_CONFIG_STATUS_SUCCESS;
 }
 
 static gboolean
 device_set_click_method (struct libinput_device            *libinput_device,
                          enum libinput_config_click_method  method)
 {
-  enum libinput_config_click_method supported;
-
-  supported = libinput_device_config_click_get_methods (libinput_device);
-
-  if (method & supported)
+  enum libinput_config_status status =
     libinput_device_config_click_set_method (libinput_device, method);
-
-  return (method & supported) != 0;
+  return status == LIBINPUT_CONFIG_STATUS_SUCCESS;
 }
 
 static void