1 files changed, 70 insertions, 1 deletions

diff --git a/backend/libinput/tablet_pad.c b/backend/libinput/tablet_pad.c
index 626c2219..ed5374c6 100644
--- a/backend/libinput/tablet_pad.c
+++ b/backend/libinput/tablet_pad.c
@@ -8,7 +8,60 @@
 #include "backend/libinput.h"
 #include "util/signal.h"
 
-struct wlr_tablet_pad *create_libinput_tablet_pad(
+static void add_pad_group_from_libinput(struct wlr_tablet_pad *pad,
+		struct libinput_device *device, unsigned int index) {
+	struct libinput_tablet_pad_mode_group *li_group =
+		libinput_device_tablet_pad_get_mode_group(device, index);
+	struct wlr_tablet_pad_group_v2 *group =
+		calloc(1, sizeof(struct wlr_tablet_pad_group_v2));
+	if (!group) {
+		return;
+	}
+
+	for (size_t i = 0; i < pad->ring_count; ++i) {
+		if (libinput_tablet_pad_mode_group_has_ring(li_group, i)) {
+			++group->ring_count;
+		}
+	}
+	group->rings = calloc(sizeof(int), group->ring_count);
+	size_t ring = 0;
+	for (size_t i = 0; i < pad->ring_count; ++i) {
+		if (libinput_tablet_pad_mode_group_has_ring(li_group, i)) {
+			group->rings[ring++] = i;
+		}
+	}
+
+	for (size_t i = 0; i < pad->strip_count; ++i) {
+		if (libinput_tablet_pad_mode_group_has_strip(li_group, i)) {
+			++group->strip_count;
+		}
+	}
+	group->strips = calloc(sizeof(int), group->strip_count);
+	size_t strip = 0;
+	for (size_t i = 0; i < pad->strip_count; ++i) {
+		if (libinput_tablet_pad_mode_group_has_strip(li_group, i)) {
+			group->strips[strip++] = i;
+		}
+	}
+
+	for (size_t i = 0; i < pad->button_count; ++i) {
+		if (libinput_tablet_pad_mode_group_has_button(li_group, i)) {
+			++group->button_count;
+		}
+	}
+	group->buttons = calloc(sizeof(int), group->button_count);
+	size_t button = 0;
+	for (size_t i = 0; i < pad->button_count; ++i) {
+		if (libinput_tablet_pad_mode_group_has_button(li_group, i)) {
+			group->buttons[button++] = i;
+		}
+	}
+
+	group->mode_count = libinput_tablet_pad_mode_group_get_num_modes(li_group);
+	wl_list_insert(&pad->groups, &group->link);
+}
+
+struct wlr_tablet_pad *libinput_tablet_pad_create(
 		struct libinput_device *libinput_dev) {
 	assert(libinput_dev);
 	struct wlr_tablet_pad *wlr_tablet_pad = calloc(1, sizeof(struct wlr_tablet_pad));
@@ -16,6 +69,22 @@ struct wlr_tablet_pad *create_libinput_tablet_pad(
 		wlr_log(WLR_ERROR, "Unable to allocate wlr_tablet_pad");
 		return NULL;
 	}
+
+	wlr_tablet_pad->button_count =
+		libinput_device_tablet_pad_get_num_buttons(libinput_dev);
+	wlr_tablet_pad->ring_count =
+		libinput_device_tablet_pad_get_num_rings(libinput_dev);
+	wlr_tablet_pad->strip_count =
+		libinput_device_tablet_pad_get_num_strips(libinput_dev);
+
+	//struct udev_device *udev = libinput_device_get_udev_device(libinput_dev);
+	//add_tablet_path(&pad->paths, udev_device_get_syspath(udev));
+
+	int groups = libinput_device_tablet_pad_get_num_mode_groups(libinput_dev);
+	for (int i = 0; i < groups; ++i) {
+		add_pad_group_from_libinput(wlr_tablet_pad, libinput_dev, i);
+	}
+
 	wlr_tablet_pad_init(wlr_tablet_pad, NULL);
 	return wlr_tablet_pad;
 }