1896fafef6
https://wiki.gnome.org/Design/SystemSettings/Mouse https://bugzilla.gnome.org/show_bug.cgi?id=756863
123 lines
4.4 KiB
C
123 lines
4.4 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
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*
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* Copyright 2015 Red Hat, Inc,
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Felipe Borges <feborges@redhat.com>
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*/
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#include "cc-mouse-caps-helper.h"
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static gboolean
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synaptics_check_capabilities_x11 (gboolean *have_two_finger_scrolling,
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gboolean *have_edge_scrolling,
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gboolean *have_tap_to_click)
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{
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int numdevices, i;
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XDeviceInfo *devicelist;
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Atom realtype, prop_capabilities, prop_scroll_methods, prop_tapping_enabled;
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int realformat;
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unsigned long nitems, bytes_after;
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unsigned char *data;
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prop_capabilities = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "Synaptics Capabilities", False);
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prop_scroll_methods = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "libinput Scroll Methods Available", False);
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prop_tapping_enabled = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "libinput Tapping Enabled", False);
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if (!prop_capabilities || !prop_scroll_methods || !prop_tapping_enabled)
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return FALSE;
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*have_two_finger_scrolling = FALSE;
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*have_edge_scrolling = FALSE;
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*have_tap_to_click = FALSE;
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devicelist = XListInputDevices (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), &numdevices);
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for (i = 0; i < numdevices; i++) {
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if (devicelist[i].use != IsXExtensionPointer)
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continue;
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gdk_error_trap_push ();
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XDevice *device = XOpenDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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devicelist[i].id);
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if (gdk_error_trap_pop ())
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continue;
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gdk_error_trap_push ();
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/* xorg-x11-drv-synaptics */
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if ((XGetDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device, prop_capabilities,
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0, 2, False, XA_INTEGER, &realtype, &realformat, &nitems,
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&bytes_after, &data) == Success) && (realtype != None)) {
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/* Property data is booleans for has_left, has_middle, has_right, has_double, has_triple.
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* Newer drivers (X.org/kerrnel) will also include has_pressure and has_width. */
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/* Set tap_to_click_toggle sensitive only if the device has hardware buttons */
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if (data[0])
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*have_tap_to_click = TRUE;
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/* Set two_finger_scroll_toggle sensitive if the hardware supports double touch */
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if (data[3])
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*have_two_finger_scrolling = TRUE;
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/* Edge scrolling should be supported for all synaptics touchpads */
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*have_edge_scrolling = TRUE;
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XFree (data);
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}
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/* xorg-x11-drv-libinput */
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if ((XGetDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device, prop_scroll_methods,
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0, 2, False, XA_INTEGER, &realtype, &realformat, &nitems,
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&bytes_after, &data) == Success) && (realtype != None)) {
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/* Property data is booleans for two-finger, edge, on-button scroll available. */
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if (data[0])
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*have_two_finger_scrolling = TRUE;
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if (data[1])
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*have_edge_scrolling = TRUE;
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XFree (data);
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}
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if ((XGetDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device, prop_tapping_enabled,
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0, 1, False, XA_INTEGER, &realtype, &realformat, &nitems,
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&bytes_after, &data) == Success) && (realtype != None)) {
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/* Property data is boolean for tapping enabled. */
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*have_tap_to_click = TRUE;
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XFree (data);
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}
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gdk_error_trap_pop_ignored ();
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XCloseDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device);
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}
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XFreeDeviceList (devicelist);
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return TRUE;
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}
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gboolean
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synaptics_check_capabilities (gboolean *have_two_finger_scrolling,
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gboolean *have_edge_scrolling,
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gboolean *have_tap_to_click)
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{
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if (GDK_IS_X11_DISPLAY (gdk_display_get_default ()))
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return synaptics_check_capabilities_x11 (have_two_finger_scrolling,
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have_edge_scrolling,
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have_tap_to_click);
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/* else we unconditionally show all touchpad knobs */
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return FALSE;
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}
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