mouse: libinput - hook up click methods

note: libinput does not allow for configuration of the click actions,
the options are just "software buttons" or "clickfinger". If any
clickfinger actions are set, we enable clickfinger, otherwise software
buttons.

adapted from:
https://github.com/linuxmint/cinnamon-settings-daemon/commit/6394ea6c2754c434897cebfc6c331b4ee07ce1b8

1 files changed, 62 insertions, 3 deletions

diff --git a/plugins/mouse/msd-mouse-manager.c b/plugins/mouse/msd-mouse-manager.c
index b48189b..43fd124 100644
--- a/plugins/mouse/msd-mouse-manager.c
+++ b/plugins/mouse/msd-mouse-manager.c
@@ -810,9 +810,9 @@ set_tap_to_click_all (MsdMouseManager *manager)
 }
 
 static void
-set_click_actions (XDeviceInfo     *device_info,
-                   gint             enable_two_finger_click,
-                   gint             enable_three_finger_click)
+set_click_actions_synaptics (XDeviceInfo *device_info,
+                             gint         enable_two_finger_click,
+                             gint         enable_three_finger_click)
 {
         XDevice *device;
         int format, rc;
@@ -851,7 +851,66 @@ set_click_actions (XDeviceInfo     *device_info,
         if (gdk_error_trap_pop ()) {
                 g_warning ("Error in setting click actions on \"%s\"", device_info->name);
         }
+}
+
+static void
+set_click_actions_libinput (XDeviceInfo *device_info,
+                            gint         enable_two_finger_click,
+                            gint         enable_three_finger_click)
+{
+        XDevice *device;
+        int format, rc;
+        unsigned long nitems, bytes_after;
+        unsigned char *data;
+        Atom prop, type;
+        gboolean want_clickfinger;
+        gboolean want_softwarebuttons;
+
+        prop = property_from_name ("libinput Click Method Enabled");
+        if (!prop)
+                return;
+
+        device = device_is_touchpad (device_info);
+        if (device == NULL) {
+                return;
+        }
+
+        g_debug ("setting click action to click on %s", device_info->name);
+
+        want_clickfinger = enable_two_finger_click || enable_three_finger_click;
+        want_softwarebuttons = !want_clickfinger;
+
+        gdk_error_trap_push ();
+        rc = XGetDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device, prop, 0, 2,
+                                 False, XA_INTEGER, &type, &format, &nitems,
+                                 &bytes_after, &data);
+
+        if (rc == Success && type == XA_INTEGER && format == 8 && nitems >= 2) {
+                data[0] = want_softwarebuttons;
+                data[1] = want_clickfinger;
+                XChangeDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device, prop,
+                                       XA_INTEGER, 8, PropModeReplace, data, nitems);
+        }
+
+        if (rc == Success)
+                XFree (data);
+
+        XCloseDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device);
+        if (gdk_error_trap_pop ()) {
+                g_warning ("Error in setting click actions on \"%s\"", device_info->name);
+        }
+}
+
+static void
+set_click_actions (XDeviceInfo *device_info,
+                   gint         enable_two_finger_click,
+                   gint         enable_three_finger_click)
+{
+        if (property_from_name ("Synaptics Click Action"))
+                set_click_actions_synaptics (device_info, enable_two_finger_click, enable_three_finger_click);
 
+        if (property_from_name ("libinput Click Method Enabled"))
+                set_click_actions_libinput (device_info, enable_two_finger_click, enable_three_finger_click);
 }
 
 static void