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meta-input-settings-x11: Don't try setting unavailable scroll methods

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Since doing so causes BadValue X errors.

https://bugzilla.gnome.org/show_bug.cgi?id=771744
This commit is contained in:
Rui Matos 2016-11-14 17:33:11 +01:00
parent a601639dd3
commit 5c46094d67
1 changed files with 20 additions and 4 deletions
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24
src/backends/x11/meta-input-settings-x11.c
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@ -222,19 +222,27 @@ meta_input_settings_x11_set_edge_scroll (MetaInputSettings *settings,
gboolean edge_scroll_enabled)
{
guchar values[SCROLL_METHOD_NUM_FIELDS] = { 0 }; /* 2fg, edge, button. The last value is unused */
guchar *current;
guchar *current = NULL;
guchar *available = NULL;
available = get_property (device, "libinput Scroll Methods Available",
XA_INTEGER, 8, SCROLL_METHOD_NUM_FIELDS);
if (!available || !available[SCROLL_METHOD_FIELD_EDGE])
goto out;
current = get_property (device, "libinput Scroll Method Enabled",
XA_INTEGER, 8, SCROLL_METHOD_NUM_FIELDS);
if (!current)
return;
goto out;
memcpy (values, current, SCROLL_METHOD_NUM_FIELDS);
values[SCROLL_METHOD_FIELD_EDGE] = !!edge_scroll_enabled;
change_property (device, "libinput Scroll Method Enabled",
XA_INTEGER, 8, &values, SCROLL_METHOD_NUM_FIELDS);
out:
meta_XFree (current);
meta_XFree (available);
}
static void
@ -243,19 +251,27 @@ meta_input_settings_x11_set_two_finger_scroll (MetaInputSettings *set
gboolean two_finger_scroll_enabled)
{
guchar values[SCROLL_METHOD_NUM_FIELDS] = { 0 }; /* 2fg, edge, button. The last value is unused */
guchar *current;
guchar *current = NULL;
guchar *available = NULL;
available = get_property (device, "libinput Scroll Methods Available",
XA_INTEGER, 8, SCROLL_METHOD_NUM_FIELDS);
if (!available || !available[SCROLL_METHOD_FIELD_2FG])
goto out;
current = get_property (device, "libinput Scroll Method Enabled",
XA_INTEGER, 8, SCROLL_METHOD_NUM_FIELDS);
if (!current)
return;
goto out;
memcpy (values, current, SCROLL_METHOD_NUM_FIELDS);
values[SCROLL_METHOD_FIELD_2FG] = !!two_finger_scroll_enabled;
change_property (device, "libinput Scroll Method Enabled",
XA_INTEGER, 8, &values, SCROLL_METHOD_NUM_FIELDS);
out:
meta_XFree (current);
meta_XFree (available);
}
static void