From 210dfadcf0a2ae99bf4e2846118e4b22887551b8 Mon Sep 17 00:00:00 2001
From: Rui Matos <tiagomatos@gmail.com>
Date: Mon, 9 Oct 2017 18:39:52 +0200
Subject: [PATCH 1/3] backends/x11: Add a synaptics check for two finger scroll
availability
Commit "backends/x11: Support synaptics configuration" added support
for synaptics two finger scrolling but didn't add the code to check
that it is available resulting in the upper layer always assuming it
isn't.
---
src/backends/x11/meta-input-settings-x11.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/backends/x11/meta-input-settings-x11.c b/src/backends/x11/meta-input-settings-x11.c
index 1d84dfccf..5a82edbe6 100644
--- a/src/backends/x11/meta-input-settings-x11.c
+++ b/src/backends/x11/meta-input-settings-x11.c
@@ -625,6 +625,17 @@ meta_input_settings_x11_has_two_finger_scroll (MetaInputSettings *settings,
guchar *available = NULL;
gboolean has_two_finger = TRUE;
+ if (is_device_synaptics (device))
+ {
+ available = get_property (device, "Synaptics Capabilities",
+ XA_INTEGER, 8, 4);
+ if (!available || !available[3])
+ has_two_finger = FALSE;
+
+ meta_XFree (available);
+ return has_two_finger;
+ }
+
available = get_property (device, "libinput Scroll Methods Available",
XA_INTEGER, 8, SCROLL_METHOD_NUM_FIELDS);
if (!available || !available[SCROLL_METHOD_FIELD_2FG])
--
2.20.1
From e2b5d9c65699ace1f00273bb9860a0fe66f662ee Mon Sep 17 00:00:00 2001
From: Rui Matos <tiagomatos@gmail.com>
Date: Mon, 9 Oct 2017 18:55:56 +0200
Subject: [PATCH 2/3] backends/x11: Add disable while typing support for
synaptics
This is basically a copy of the old g-s-d mouse plugin code to manage
syndaemon when the synaptics driver is being used.
---
src/backends/x11/meta-input-settings-x11.c | 112 +++++++++++++++++++++
1 file changed, 112 insertions(+)
diff --git a/src/backends/x11/meta-input-settings-x11.c b/src/backends/x11/meta-input-settings-x11.c
index 5a82edbe6..33abd0c72 100644
--- a/src/backends/x11/meta-input-settings-x11.c
+++ b/src/backends/x11/meta-input-settings-x11.c
@@ -35,6 +35,9 @@
#ifdef HAVE_LIBGUDEV
#include <gudev/gudev.h>
#endif
+#ifdef __linux
+#include <sys/prctl.h>
+#endif
#include <meta/errors.h>
#include "backends/meta-logical-monitor.h"
@@ -44,6 +47,8 @@ typedef struct _MetaInputSettingsX11Private
#ifdef HAVE_LIBGUDEV
GUdevClient *udev_client;
#endif
+ gboolean syndaemon_spawned;
+ GPid syndaemon_pid;
} MetaInputSettingsX11Private;
G_DEFINE_TYPE_WITH_PRIVATE (MetaInputSettingsX11, meta_input_settings_x11,
@@ -332,6 +337,107 @@ change_synaptics_speed (ClutterInputDevice *device,
XCloseDevice (xdisplay, xdevice);
}
+/* Ensure that syndaemon dies together with us, to avoid running several of
+ * them */
+static void
+setup_syndaemon (gpointer user_data)
+{
+#ifdef __linux
+ prctl (PR_SET_PDEATHSIG, SIGHUP);
+#endif
+}
+
+static gboolean
+have_program_in_path (const char *name)
+{
+ gchar *path;
+ gboolean result;
+
+ path = g_find_program_in_path (name);
+ result = (path != NULL);
+ g_free (path);
+ return result;
+}
+
+static void
+syndaemon_died (GPid pid,
+ gint status,
+ gpointer user_data)
+{
+ MetaInputSettingsX11 *settings_x11 = META_INPUT_SETTINGS_X11 (user_data);
+ MetaInputSettingsX11Private *priv =
+ meta_input_settings_x11_get_instance_private (settings_x11);
+ GError *error = NULL;
+
+ if (!g_spawn_check_exit_status (status, &error))
+ {
+ if ((WIFSIGNALED (status) && WTERMSIG (status) != SIGHUP) ||
+ error->domain == G_SPAWN_EXIT_ERROR)
+ g_warning ("Syndaemon exited unexpectedly: %s", error->message);
+ g_error_free (error);
+ }
+
+ g_spawn_close_pid (pid);
+ priv->syndaemon_spawned = FALSE;
+}
+
+static void
+set_synaptics_disable_w_typing (MetaInputSettings *settings,
+ gboolean state)
+{
+ MetaInputSettingsX11 *settings_x11 = META_INPUT_SETTINGS_X11 (settings);
+ MetaInputSettingsX11Private *priv =
+ meta_input_settings_x11_get_instance_private (settings_x11);
+
+ if (state)
+ {
+ GError *error = NULL;
+ GPtrArray *args;
+
+ if (priv->syndaemon_spawned)
+ return;
+
+ if (!have_program_in_path ("syndaemon"))
+ return;
+
+ args = g_ptr_array_new ();
+
+ g_ptr_array_add (args, "syndaemon");
+ g_ptr_array_add (args, "-i");
+ g_ptr_array_add (args, "1.0");
+ g_ptr_array_add (args, "-t");
+ g_ptr_array_add (args, "-K");
+ g_ptr_array_add (args, "-R");
+ g_ptr_array_add (args, NULL);
+
+ /* we must use G_SPAWN_DO_NOT_REAP_CHILD to avoid
+ * double-forking, otherwise syndaemon will immediately get
+ * killed again through (PR_SET_PDEATHSIG when the intermediate
+ * process dies */
+ g_spawn_async (g_get_home_dir (), (char **) args->pdata, NULL,
+ G_SPAWN_SEARCH_PATH|G_SPAWN_DO_NOT_REAP_CHILD, setup_syndaemon, NULL,
+ &priv->syndaemon_pid, &error);
+
+ priv->syndaemon_spawned = (error == NULL);
+ g_ptr_array_free (args, TRUE);
+
+ if (error)
+ {
+ g_warning ("Failed to launch syndaemon: %s", error->message);
+ g_error_free (error);
+ }
+ else
+ {
+ g_child_watch_add (priv->syndaemon_pid, syndaemon_died, settings);
+ }
+ }
+ else if (priv->syndaemon_spawned)
+ {
+ kill (priv->syndaemon_pid, SIGHUP);
+ priv->syndaemon_spawned = FALSE;
+ }
+}
+
static void
meta_input_settings_x11_set_send_events (MetaInputSettings *settings,
ClutterInputDevice *device,
@@ -456,6 +562,12 @@ meta_input_settings_x11_set_disable_while_typing (MetaInputSettings *settings,
{
guchar value = (enabled) ? 1 : 0;
+ if (is_device_synaptics (device))
+ {
+ set_synaptics_disable_w_typing (settings, enabled);
+ return;
+ }
+
change_property (device, "libinput Disable While Typing Enabled",
XA_INTEGER, 8, &value, 1);
}
--
2.20.1
From 8c1d608c499a2038b0715f9cbf37e1bba87ef6e1 Mon Sep 17 00:00:00 2001
From: Rui Matos <tiagomatos@gmail.com>
Date: Tue, 10 Oct 2017 19:07:27 +0200
Subject: [PATCH 3/3] backends/x11: Support plain old X device configuration
We re-use part of the code added to support synaptics and add a few
bits specific for xorg-x11-drv-evdev devices.
---
src/backends/x11/meta-input-settings-x11.c | 97 +++++++++++++++++-----
1 file changed, 74 insertions(+), 23 deletions(-)
diff --git a/src/backends/x11/meta-input-settings-x11.c b/src/backends/x11/meta-input-settings-x11.c
index 33abd0c72..906f504f8 100644
--- a/src/backends/x11/meta-input-settings-x11.c
+++ b/src/backends/x11/meta-input-settings-x11.c
@@ -179,35 +179,35 @@ is_device_synaptics (ClutterInputDevice *device)
return TRUE;
}
+static gboolean
+is_device_libinput (ClutterInputDevice *device)
+{
+ guchar *has_setting;
+
+ /* We just need looking for a synaptics-specific property */
+ has_setting = get_property (device, "libinput Send Events Modes Available", XA_INTEGER, 8, 2);
+ if (!has_setting)
+ return FALSE;
+
+ meta_XFree (has_setting);
+ return TRUE;
+}
+
static void
-change_synaptics_tap_left_handed (ClutterInputDevice *device,
- gboolean tap_enabled,
- gboolean left_handed)
+change_x_device_left_handed (ClutterInputDevice *device,
+ gboolean left_handed)
{
MetaDisplay *display = meta_get_display ();
MetaBackend *backend = meta_get_backend ();
Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
XDevice *xdevice;
- guchar *tap_action, *buttons;
+ guchar *buttons;
guint buttons_capacity = 16, n_buttons;
xdevice = XOpenDevice(xdisplay, clutter_input_device_get_device_id (device));
if (!xdevice)
return;
- tap_action = get_property (device, "Synaptics Tap Action",
- XA_INTEGER, 8, 7);
- if (!tap_action)
- goto out;
-
- tap_action[4] = tap_enabled ? (left_handed ? 3 : 1) : 0;
- tap_action[5] = tap_enabled ? (left_handed ? 1 : 3) : 0;
- tap_action[6] = tap_enabled ? 2 : 0;
-
- change_property (device, "Synaptics Tap Action",
- XA_INTEGER, 8, tap_action, 7);
- meta_XFree (tap_action);
-
if (display)
meta_error_trap_push (display);
buttons = g_new (guchar, buttons_capacity);
@@ -231,17 +231,39 @@ change_synaptics_tap_left_handed (ClutterInputDevice *device,
if (display && meta_error_trap_pop_with_return (display))
{
- g_warning ("Could not set synaptics touchpad left-handed for %s",
+ g_warning ("Could not set left-handed for %s",
clutter_input_device_get_device_name (device));
}
- out:
XCloseDevice (xdisplay, xdevice);
}
static void
-change_synaptics_speed (ClutterInputDevice *device,
- gdouble speed)
+change_synaptics_tap_left_handed (ClutterInputDevice *device,
+ gboolean tap_enabled,
+ gboolean left_handed)
+{
+ guchar *tap_action;
+
+ tap_action = get_property (device, "Synaptics Tap Action",
+ XA_INTEGER, 8, 7);
+ if (!tap_action)
+ return;
+
+ tap_action[4] = tap_enabled ? (left_handed ? 3 : 1) : 0;
+ tap_action[5] = tap_enabled ? (left_handed ? 1 : 3) : 0;
+ tap_action[6] = tap_enabled ? 2 : 0;
+
+ change_property (device, "Synaptics Tap Action",
+ XA_INTEGER, 8, tap_action, 7);
+ meta_XFree (tap_action);
+
+ change_x_device_left_handed (device, left_handed);
+}
+
+static void
+change_x_device_speed (ClutterInputDevice *device,
+ gdouble speed)
{
MetaDisplay *display = meta_get_display ();
MetaBackend *backend = meta_get_backend ();
@@ -337,6 +359,23 @@ change_synaptics_speed (ClutterInputDevice *device,
XCloseDevice (xdisplay, xdevice);
}
+static void
+change_x_device_scroll_button (ClutterInputDevice *device,
+ guint button)
+{
+ guchar value;
+
+ value = button > 0 ? 1 : 0;
+ change_property (device, "Evdev Wheel Emulation",
+ XA_INTEGER, 8, &value, 1);
+ if (button > 0)
+ {
+ value = button;
+ change_property (device, "Evdev Wheel Emulation Button",
+ XA_INTEGER, 8, &value, 1);
+ }
+}
+
/* Ensure that syndaemon dies together with us, to avoid running several of
* them */
static void
@@ -505,9 +544,10 @@ meta_input_settings_x11_set_speed (MetaInputSettings *settings,
Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
gfloat value = speed;
- if (is_device_synaptics (device))
+ if (is_device_synaptics (device) ||
+ !is_device_libinput (device))
{
- change_synaptics_speed (device, speed);
+ change_x_device_speed (device, speed);
return;
}
@@ -549,6 +589,11 @@ meta_input_settings_x11_set_left_handed (MetaInputSettings *settings,
g_object_unref (settings);
return;
}
+ else if (!is_device_libinput (device))
+ {
+ change_x_device_left_handed (device, enabled);
+ return;
+ }
change_property (device, "libinput Left Handed Enabled",
XA_INTEGER, 8, &value, 1);
@@ -762,6 +807,12 @@ meta_input_settings_x11_set_scroll_button (MetaInputSettings *settings,
ClutterInputDevice *device,
guint button)
{
+ if (!is_device_libinput (device))
+ {
+ change_x_device_scroll_button (device, button);
+ return;
+ }
+
change_property (device, "libinput Button Scrolling Button",
XA_INTEGER, 32, &button, 1);
}
--
2.20.1