Added basic tap-to-click for touchpad users

Makefile

@@ -5,7 +5,7 @@ CFLAGS += -I. -DWLR_USE_UNSTABLE -std=c99 -Werror=declaration-after-statement
 WAYLAND_PROTOCOLS=$(shell pkg-config --variable=pkgdatadir wayland-protocols)
 WAYLAND_SCANNER=$(shell pkg-config --variable=wayland_scanner wayland-scanner)
 
-PKGS = wlroots wayland-server xcb xkbcommon
+PKGS = wlroots wayland-server xcb xkbcommon libinput
 CFLAGS += $(foreach p,$(PKGS),$(shell pkg-config --cflags $(p)))
 LDLIBS += $(foreach p,$(PKGS),$(shell pkg-config --libs $(p)))
 

config.def.h

@@ -41,6 +41,10 @@ static const struct xkb_rule_names xkb_rules = {
 	.options = "ctrl:nocaps",
 	*/
 };
+
+/* Trackpad */
+int tap_to_click = 1;
+
 static const int repeat_rate = 25;
 static const int repeat_delay = 600;
 

dwl.c

@@ -10,6 +10,7 @@
 #include <sys/wait.h>
 #include <time.h>
 #include <unistd.h>
+#include <libinput.h>
 #include <wayland-server-core.h>
 #include <wlr/backend.h>
 #include <wlr/render/wlr_renderer.h>
@@ -33,6 +34,7 @@
 #include <wlr/types/wlr_xdg_decoration_v1.h>
 #include <wlr/types/wlr_xdg_output_v1.h>
 #include <wlr/types/wlr_xdg_shell.h>
+#include <wlr/backend/libinput.h>
 #include <wlr/util/log.h>
 #include <xkbcommon/xkbcommon.h>
 #ifdef XWAYLAND
@@ -603,6 +605,10 @@ createnotify(struct wl_listener *listener, void *data)
 void
 createpointer(struct wlr_input_device *device)
 {
+	struct libinput_device *libinput_device =  (struct libinput_device*)
+			wlr_libinput_get_device_handle(device);
+	if (tap_to_click && libinput_device_config_tap_get_finger_count(libinput_device))
+		libinput_device_config_tap_set_enabled(libinput_device, LIBINPUT_CONFIG_TAP_ENABLED);
 	/* We don't do anything special with pointers. All of our pointer handling
 	 * is proxied through wlr_cursor. On another compositor, you might take this
 	 * opportunity to do libinput configuration on the device to set