Adding upstream version 1:3.38.4.upstream/1%3.38.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 148 insertions, 0 deletions

diff --git a/panels/mouse/cc-mouse-caps-helper.c b/panels/mouse/cc-mouse-caps-helper.c
new file mode 100644
index 0000000..69546b2
--- /dev/null
+++ b/panels/mouse/cc-mouse-caps-helper.c
@@ -0,0 +1,148 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright 2015  Red Hat, Inc,
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Felipe Borges <feborges@redhat.com>
+ */
+
+#include <gdk/gdkx.h>
+#include <X11/Xatom.h>
+#include <X11/extensions/XInput2.h>
+
+#include "cc-mouse-caps-helper.h"
+
+static gboolean
+touchpad_check_capabilities_x11 (gboolean *have_two_finger_scrolling,
+                                 gboolean *have_edge_scrolling,
+                                 gboolean *have_tap_to_click)
+{
+        GdkDisplay *gdisplay;
+        Display *display;
+	g_autoptr(GList) devicelist = NULL;
+	GList *l;
+	Atom realtype, prop_scroll_methods, prop_tapping_enabled;
+	int realformat;
+	unsigned long nitems, bytes_after;
+	unsigned char *data;
+
+        gdisplay = gdk_display_get_default ();
+        display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
+	prop_scroll_methods = XInternAtom (display, "libinput Scroll Methods Available", False);
+	prop_tapping_enabled = XInternAtom (display, "libinput Tapping Enabled", False);
+	if (!prop_scroll_methods || !prop_tapping_enabled)
+		return FALSE;
+
+	*have_two_finger_scrolling = FALSE;
+	*have_edge_scrolling = FALSE;
+	*have_tap_to_click = FALSE;
+
+        gdk_x11_display_error_trap_push (gdisplay);
+
+	devicelist = gdk_seat_get_slaves (gdk_display_get_default_seat (gdk_display_get_default ()),
+                                          GDK_SEAT_CAPABILITY_ALL_POINTING);
+	for (l = devicelist; l != NULL; l = l->next) {
+                GdkDevice *device = l->data;
+                if (gdk_device_get_source (device) != GDK_SOURCE_TOUCHPAD)
+			continue;
+
+		/* xorg-x11-drv-libinput */
+		if ((XIGetProperty (display, gdk_x11_device_get_id (device), prop_scroll_methods,
+                                    0, 2, False, XA_INTEGER, &realtype, &realformat, &nitems,
+                                    &bytes_after, &data) == Success) && (realtype != None)) {
+			/* Property data is booleans for two-finger, edge, on-button scroll available. */
+
+			if (data[0])
+				*have_two_finger_scrolling = TRUE;
+
+			if (data[1])
+				*have_edge_scrolling = TRUE;
+
+			XFree (data);
+		}
+
+		if ((XIGetProperty (display, gdk_x11_device_get_id (device), prop_tapping_enabled,
+                                    0, 1, False, XA_INTEGER, &realtype, &realformat, &nitems,
+                                    &bytes_after, &data) == Success) && (realtype != None)) {
+			/* Property data is boolean for tapping enabled. */
+			*have_tap_to_click = TRUE;
+
+			XFree (data);
+		}
+	}
+
+        gdk_x11_display_error_trap_pop_ignored (gdisplay);
+
+	return TRUE;
+}
+
+gboolean
+cc_touchpad_check_capabilities (gboolean *have_two_finger_scrolling,
+                                gboolean *have_edge_scrolling,
+                                gboolean *have_tap_to_click)
+{
+	if (GDK_IS_X11_DISPLAY (gdk_display_get_default ()))
+		return touchpad_check_capabilities_x11 (have_two_finger_scrolling,
+                                                        have_edge_scrolling,
+                                                        have_tap_to_click);
+	/* else we unconditionally show all touchpad knobs */
+        *have_two_finger_scrolling = TRUE;
+        *have_edge_scrolling = TRUE;
+        *have_tap_to_click = TRUE;
+	return FALSE;
+}
+
+gboolean
+cc_synaptics_check (void)
+{
+        GdkDisplay *gdisplay;
+        Display *display;
+        g_autoptr(GList) devicelist = NULL;
+        GList *l;
+        Atom prop, realtype;
+        int realformat;
+        unsigned long nitems, bytes_after;
+        unsigned char *data;
+        gboolean have_synaptics = FALSE;
+
+        if (!GDK_IS_X11_DISPLAY (gdk_display_get_default ()))
+                return FALSE;
+
+        gdisplay = gdk_display_get_default ();
+        display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
+        prop = XInternAtom (display, "Synaptics Capabilities", False);
+
+        gdk_x11_display_error_trap_push (gdisplay);
+
+        devicelist = gdk_seat_get_slaves (gdk_display_get_default_seat (gdk_display_get_default ()),
+                                          GDK_SEAT_CAPABILITY_ALL_POINTING);
+        for (l = devicelist; l != NULL; l = l->next) {
+                GdkDevice *device = l->data;
+
+                if ((XIGetProperty (display, gdk_x11_device_get_id (device), prop,
+                                    0, 2, False, XA_INTEGER, &realtype, &realformat, &nitems,
+                                    &bytes_after, &data) == Success) && (realtype != None)) {
+                        have_synaptics = TRUE;
+                        XFree (data);
+                }
+
+                if (have_synaptics)
+                        break;
+        }
+
+        gdk_x11_display_error_trap_pop_ignored (gdisplay);
+
+        return have_synaptics;
+}