4 files changed, 413 insertions, 77 deletions
diff --git a/sway/input/cursor.c b/sway/input/cursor.c
new file mode 100644
index 00000000..5f2d650e
--- /dev/null
+++ b/sway/input/cursor.c
@@ -0,0 +1,168 @@
+#define _XOPEN_SOURCE 700
+#include <wlr/types/wlr_cursor.h>
+#include <wlr/types/wlr_xcursor_manager.h>
+#include "sway/input/cursor.h"
+#include "sway/view.h"
+#include "list.h"
+#include "log.h"
+
+static void cursor_update_position(struct sway_cursor *cursor) {
+	double x = cursor->cursor->x;
+	double y = cursor->cursor->y;
+
+	wlr_xcursor_manager_set_cursor_image(cursor->xcursor_manager,
+		"left_ptr", cursor->cursor);
+
+	cursor->x = x;
+	cursor->y = y;
+}
+
+static void cursor_send_pointer_motion(struct sway_cursor *cursor,
+		uint32_t time) {
+	struct wlr_seat *seat = cursor->seat->seat;
+	struct wlr_surface *surface = NULL;
+	double sx, sy;
+	swayc_t *swayc =
+		swayc_at(&root_container, cursor->x, cursor->y, &surface, &sx, &sy);
+	if (swayc) {
+		wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
+		wlr_seat_pointer_notify_motion(seat, time, sx, sy);
+	} else {
+		wlr_seat_pointer_clear_focus(seat);
+	}
+}
+
+static void handle_cursor_motion(struct wl_listener *listener, void *data) {
+	struct sway_cursor *cursor =
+		wl_container_of(listener, cursor, motion);
+	struct wlr_event_pointer_motion *event = data;
+	wlr_cursor_move(cursor->cursor, event->device,
+		event->delta_x, event->delta_y);
+	cursor_update_position(cursor);
+	cursor_send_pointer_motion(cursor, event->time_msec);
+}
+
+static void handle_cursor_motion_absolute(struct wl_listener *listener,
+		void *data) {
+	struct sway_cursor *cursor =
+		wl_container_of(listener, cursor, motion_absolute);
+	struct wlr_event_pointer_motion_absolute *event = data;
+	wlr_cursor_warp_absolute(cursor->cursor, event->device,
+		event->x_mm / event->width_mm, event->y_mm / event->height_mm);
+	cursor_update_position(cursor);
+	cursor_send_pointer_motion(cursor, event->time_msec);
+}
+
+static void handle_cursor_button(struct wl_listener *listener, void *data) {
+	struct sway_cursor *cursor =
+		wl_container_of(listener, cursor, button);
+	struct wlr_event_pointer_button *event = data;
+	wlr_seat_pointer_notify_button(cursor->seat->seat, event->time_msec,
+		event->button, event->state);
+}
+
+static void handle_cursor_axis(struct wl_listener *listener, void *data) {
+	struct sway_cursor *cursor =
+		wl_container_of(listener, cursor, axis);
+	struct wlr_event_pointer_axis *event = data;
+	wlr_seat_pointer_notify_axis(cursor->seat->seat, event->time_msec,
+		event->orientation, event->delta);
+}
+
+static void handle_touch_down(struct wl_listener *listener, void *data) {
+	struct sway_cursor *cursor =
+		wl_container_of(listener, cursor, touch_down);
+	struct wlr_event_touch_down *event = data;
+	sway_log(L_DEBUG, "TODO: handle touch down event: %p", event);
+}
+
+static void handle_touch_up(struct wl_listener *listener, void *data) {
+	struct sway_cursor *cursor =
+		wl_container_of(listener, cursor, touch_up);
+	struct wlr_event_touch_up *event = data;
+	sway_log(L_DEBUG, "TODO: handle touch up event: %p", event);
+}
+
+static void handle_touch_motion(struct wl_listener *listener, void *data) {
+	struct sway_cursor *cursor =
+		wl_container_of(listener, cursor, touch_motion);
+	struct wlr_event_touch_motion *event = data;
+	sway_log(L_DEBUG, "TODO: handle touch motion event: %p", event);
+}
+
+static void handle_tool_axis(struct wl_listener *listener, void *data) {
+	struct sway_cursor *cursor =
+		wl_container_of(listener, cursor, tool_axis);
+	struct wlr_event_tablet_tool_axis *event = data;
+	sway_log(L_DEBUG, "TODO: handle tool axis event: %p", event);
+}
+
+static void handle_tool_tip(struct wl_listener *listener, void *data) {
+	struct sway_cursor *cursor =
+		wl_container_of(listener, cursor, tool_tip);
+	struct wlr_event_tablet_tool_tip *event = data;
+	sway_log(L_DEBUG, "TODO: handle tool tip event: %p", event);
+}
+
+static void handle_request_set_cursor(struct wl_listener *listener,
+		void *data) {
+	struct sway_cursor *cursor =
+		wl_container_of(listener, cursor, request_set_cursor);
+	struct wlr_seat_pointer_request_set_cursor_event *event = data;
+	sway_log(L_DEBUG, "TODO: handle request set cursor event: %p", event);
+}
+
+struct sway_cursor *sway_cursor_create(struct sway_seat *seat) {
+	struct sway_cursor *cursor = calloc(1, sizeof(struct sway_cursor));
+	if (!sway_assert(cursor, "could not allocate sway cursor")) {
+		return NULL;
+	}
+
+	struct wlr_cursor *wlr_cursor = wlr_cursor_create();
+	if (!sway_assert(wlr_cursor, "could not allocate wlr cursor")) {
+		free(cursor);
+		return NULL;
+	}
+
+	cursor->seat = seat;
+	wlr_cursor_attach_output_layout(wlr_cursor, root_container.output_layout);
+
+	// input events
+	wl_signal_add(&wlr_cursor->events.motion, &cursor->motion);
+	cursor->motion.notify = handle_cursor_motion;
+
+	wl_signal_add(&wlr_cursor->events.motion_absolute,
+		&cursor->motion_absolute);
+	cursor->motion_absolute.notify = handle_cursor_motion_absolute;
+
+	wl_signal_add(&wlr_cursor->events.button, &cursor->button);
+	cursor->button.notify = handle_cursor_button;
+
+	wl_signal_add(&wlr_cursor->events.axis, &cursor->axis);
+	cursor->axis.notify = handle_cursor_axis;
+
+	wl_signal_add(&wlr_cursor->events.touch_down, &cursor->touch_down);
+	cursor->touch_down.notify = handle_touch_down;
+
+	wl_signal_add(&wlr_cursor->events.touch_up, &cursor->touch_up);
+	cursor->touch_up.notify = handle_touch_up;
+
+	wl_signal_add(&wlr_cursor->events.touch_motion,
+		&cursor->touch_motion);
+	cursor->touch_motion.notify = handle_touch_motion;
+
+	wl_signal_add(&wlr_cursor->events.tablet_tool_axis,
+		&cursor->tool_axis);
+	cursor->tool_axis.notify = handle_tool_axis;
+
+	wl_signal_add(&wlr_cursor->events.tablet_tool_tip, &cursor->tool_tip);
+	cursor->tool_tip.notify = handle_tool_tip;
+
+	wl_signal_add(&seat->seat->events.request_set_cursor,
+			&cursor->request_set_cursor);
+	cursor->request_set_cursor.notify = handle_request_set_cursor;
+
+	cursor->cursor = wlr_cursor;
+
+	return cursor;
+}
diff --git a/sway/input/input-manager.c b/sway/input/input-manager.c
new file mode 100644
index 00000000..4f52e59a
--- /dev/null
+++ b/sway/input/input-manager.c
@@ -0,0 +1,133 @@
+#define _XOPEN_SOURCE 700
+#include <ctype.h>
+#include <float.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <libinput.h>
+#include "sway/config.h"
+#include "sway/input/input-manager.h"
+#include "sway/input/seat.h"
+#include "sway/server.h"
+#include "list.h"
+#include "log.h"
+
+static const char *default_seat = "seat0";
+
+struct input_config *current_input_config = NULL;
+
+static struct sway_seat *input_manager_get_seat(
+		struct sway_input_manager *input, const char *seat_name) {
+	struct sway_seat *seat = NULL;
+
+	for (int i = 0; i < input->seats->length; ++i) {
+		seat = input->seats->items[i];
+		if (strcmp(seat->seat->name, seat_name) == 0) {
+			return seat;
+		}
+	}
+
+	seat = sway_seat_create(input->server->wl_display, seat_name);
+	list_add(input->seats, seat);
+
+	return seat;
+}
+
+static void input_add_notify(struct wl_listener *listener, void *data) {
+	struct sway_input_manager *input =
+		wl_container_of(listener, input, input_add);
+	struct wlr_input_device *device = data;
+
+	// TODO device configuration
+	struct sway_seat *seat = input_manager_get_seat(input, default_seat);
+	sway_seat_add_device(seat, device);
+}
+
+static void input_remove_notify(struct wl_listener *listener, void *data) {
+	struct sway_input_manager *input =
+		wl_container_of(listener, input, input_remove);
+	struct wlr_input_device *device = data;
+
+	// TODO device configuration
+	struct sway_seat *seat = input_manager_get_seat(input, default_seat);
+	sway_seat_remove_device(seat, device);
+}
+
+struct sway_input_manager *sway_input_manager_create(
+		struct sway_server *server) {
+	struct sway_input_manager *input =
+		calloc(1, sizeof(struct sway_input_manager));
+	if (!input) {
+		return NULL;
+	}
+	// XXX probably don't need the full server
+	input->server = server;
+
+	input->seats = create_list();
+
+	// create the default seat
+	input_manager_get_seat(input, default_seat);
+
+	input->input_add.notify = input_add_notify;
+	wl_signal_add(&server->backend->events.input_add, &input->input_add);
+
+	input->input_remove.notify = input_remove_notify;
+	wl_signal_add(&server->backend->events.input_remove, &input->input_remove);
+
+	return input;
+}
+
+struct input_config *new_input_config(const char* identifier) {
+	struct input_config *input = calloc(1, sizeof(struct input_config));
+	if (!input) {
+		sway_log(L_DEBUG, "Unable to allocate input config");
+		return NULL;
+	}
+	sway_log(L_DEBUG, "new_input_config(%s)", identifier);
+	if (!(input->identifier = strdup(identifier))) {
+		free(input);
+		sway_log(L_DEBUG, "Unable to allocate input config");
+		return NULL;
+	}
+
+	input->tap = INT_MIN;
+	input->drag_lock = INT_MIN;
+	input->dwt = INT_MIN;
+	input->send_events = INT_MIN;
+	input->click_method = INT_MIN;
+	input->middle_emulation = INT_MIN;
+	input->natural_scroll = INT_MIN;
+	input->accel_profile = INT_MIN;
+	input->pointer_accel = FLT_MIN;
+	input->scroll_method = INT_MIN;
+	input->left_handed = INT_MIN;
+
+	return input;
+}
+
+char *libinput_dev_unique_id(struct libinput_device *device) {
+	int vendor = libinput_device_get_id_vendor(device);
+	int product = libinput_device_get_id_product(device);
+	char *name = strdup(libinput_device_get_name(device));
+
+	char *p = name;
+	for (; *p; ++p) {
+		if (*p == ' ') {
+			*p = '_';
+		}
+	}
+
+	sway_log(L_DEBUG, "rewritten name %s", name);
+
+	int len = strlen(name) + sizeof(char) * 6;
+	char *identifier = malloc(len);
+	if (!identifier) {
+		sway_log(L_ERROR, "Unable to allocate unique input device name");
+		return NULL;
+	}
+
+	const char *fmt = "%d:%d:%s";
+	snprintf(identifier, len, fmt, vendor, product, name);
+	free(name);
+	return identifier;
+}
diff --git a/sway/input/input.c b/sway/input/input.c
deleted file mode 100644
index 02b4995e..00000000
--- a/sway/input/input.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#define _XOPEN_SOURCE 700
-#include <ctype.h>
-#include <float.h>
-#include <limits.h>
-#include <stdio.h>
-#include <string.h>
-#include <libinput.h>
-#include "sway/config.h"
-#include "sway/input.h"
-#include "sway/server.h"
-#include "list.h"
-#include "log.h"
-
-struct input_config *current_input_config = NULL;
-
-struct sway_input *sway_input_create(struct sway_server *server) {
-	struct sway_input *input = calloc(1, sizeof(struct sway_input));
-	if (!input) {
-		return NULL;
-	}
-	return input;
-}
-
-struct input_config *new_input_config(const char* identifier) {
-	struct input_config *input = calloc(1, sizeof(struct input_config));
-	if (!input) {
-		sway_log(L_DEBUG, "Unable to allocate input config");
-		return NULL;
-	}
-	sway_log(L_DEBUG, "new_input_config(%s)", identifier);
-	if (!(input->identifier = strdup(identifier))) {
-		free(input);
-		sway_log(L_DEBUG, "Unable to allocate input config");
-		return NULL;
-	}
-
-	input->tap = INT_MIN;
-	input->drag_lock = INT_MIN;
-	input->dwt = INT_MIN;
-	input->send_events = INT_MIN;
-	input->click_method = INT_MIN;
-	input->middle_emulation = INT_MIN;
-	input->natural_scroll = INT_MIN;
-	input->accel_profile = INT_MIN;
-	input->pointer_accel = FLT_MIN;
-	input->scroll_method = INT_MIN;
-	input->left_handed = INT_MIN;
-
-	return input;
-}
-
-char *libinput_dev_unique_id(struct libinput_device *device) {
-	int vendor = libinput_device_get_id_vendor(device);
-	int product = libinput_device_get_id_product(device);
-	char *name = strdup(libinput_device_get_name(device));
-
-	char *p = name;
-	for (; *p; ++p) {
-		if (*p == ' ') {
-			*p = '_';
-		}
-	}
-
-	sway_log(L_DEBUG, "rewritten name %s", name);
-
-	int len = strlen(name) + sizeof(char) * 6;
-	char *identifier = malloc(len);
-	if (!identifier) {
-		sway_log(L_ERROR, "Unable to allocate unique input device name");
-		return NULL;
-	}
-
-	const char *fmt = "%d:%d:%s";
-	snprintf(identifier, len, fmt, vendor, product, name);
-	free(name);
-	return identifier;
-}
diff --git a/sway/input/seat.c b/sway/input/seat.c
new file mode 100644
index 00000000..5aed1f68
--- /dev/null
+++ b/sway/input/seat.c
@@ -0,0 +1,112 @@
+#define _XOPEN_SOURCE 700
+#include <wlr/types/wlr_cursor.h>
+#include <wlr/types/wlr_xcursor_manager.h>
+#include "sway/input/seat.h"
+#include "sway/input/cursor.h"
+#include "sway/input/input-manager.h"
+#include "sway/output.h"
+#include "log.h"
+
+struct sway_seat *sway_seat_create(struct wl_display *display,
+		const char *seat_name) {
+	struct sway_seat *seat = calloc(1, sizeof(struct sway_seat));
+	if (!seat) {
+		return NULL;
+	}
+
+	seat->seat = wlr_seat_create(display, seat_name);
+	if (!sway_assert(seat->seat, "could not allocate seat")) {
+		return NULL;
+	}
+
+	seat->cursor = sway_cursor_create(seat);
+	if (!seat->cursor) {
+		wlr_seat_destroy(seat->seat);
+		free(seat);
+		return NULL;
+	}
+
+	wlr_seat_set_capabilities(seat->seat,
+		WL_SEAT_CAPABILITY_KEYBOARD |
+		WL_SEAT_CAPABILITY_POINTER |
+		WL_SEAT_CAPABILITY_TOUCH);
+
+	sway_seat_configure_xcursor(seat);
+
+	return seat;
+}
+
+static void seat_add_pointer(struct sway_seat *seat,
+		struct wlr_input_device *device) {
+	// TODO pointer configuration
+	wlr_cursor_attach_input_device(seat->cursor->cursor, device);
+}
+
+void sway_seat_add_device(struct sway_seat *seat,
+		struct wlr_input_device *device) {
+	sway_log(L_DEBUG, "input add: %s", device->name);
+	switch (device->type) {
+		case WLR_INPUT_DEVICE_POINTER:
+			seat_add_pointer(seat, device);
+			break;
+		case WLR_INPUT_DEVICE_KEYBOARD:
+		case WLR_INPUT_DEVICE_TOUCH:
+		case WLR_INPUT_DEVICE_TABLET_PAD:
+		case WLR_INPUT_DEVICE_TABLET_TOOL:
+			sway_log(L_DEBUG, "TODO: add other devices");
+			break;
+	}
+}
+
+static void seat_remove_pointer(struct sway_seat *seat,
+		struct wlr_input_device *device) {
+	// TODO
+}
+
+void sway_seat_remove_device(struct sway_seat *seat,
+		struct wlr_input_device *device) {
+	sway_log(L_DEBUG, "input remove: %s", device->name);
+	switch (device->type) {
+		case WLR_INPUT_DEVICE_POINTER:
+			seat_remove_pointer(seat, device);
+			break;
+		case WLR_INPUT_DEVICE_KEYBOARD:
+		case WLR_INPUT_DEVICE_TOUCH:
+		case WLR_INPUT_DEVICE_TABLET_PAD:
+		case WLR_INPUT_DEVICE_TABLET_TOOL:
+			sway_log(L_DEBUG, "TODO: remove other devices");
+			break;
+	}
+}
+
+void sway_seat_configure_xcursor(struct sway_seat *seat) {
+	// TODO configure theme and size
+	const char *cursor_theme = "default";
+
+	if (!seat->cursor->xcursor_manager) {
+		seat->cursor->xcursor_manager =
+			wlr_xcursor_manager_create("default", 24);
+		if (sway_assert(seat->cursor->xcursor_manager,
+					"Cannot create XCursor manager for theme %s", cursor_theme)) {
+			return;
+		}
+	}
+
+	for (int i = 0; i < root_container.children->length; ++i) {
+		swayc_t *output_container = root_container.children->items[i];
+		struct wlr_output *output =
+			output_container->sway_output->wlr_output;
+		bool result =
+			wlr_xcursor_manager_load(seat->cursor->xcursor_manager,
+				output->scale);
+
+		sway_assert(!result,
+			"Cannot load xcursor theme for output '%s' with scale %d",
+			output->name, output->scale);
+	}
+
+	wlr_xcursor_manager_set_cursor_image(seat->cursor->xcursor_manager,
+		"left_ptr", seat->cursor->cursor);
+	wlr_cursor_warp(seat->cursor->cursor, NULL, seat->cursor->cursor->x,
+		seat->cursor->cursor->y);
+}