basic configuration

include/sway/commands.h

@@ -17,6 +17,7 @@ enum cmd_status {
 	CMD_BLOCK_BAR,
 	CMD_BLOCK_BAR_COLORS,
 	CMD_BLOCK_INPUT,
+	CMD_BLOCK_SEAT,
 	CMD_BLOCK_COMMANDS,
 	CMD_BLOCK_IPC,
 	CMD_BLOCK_IPC_EVENTS,
@@ -42,6 +43,7 @@ enum expected_args {
 };
 
 void input_cmd_apply(struct input_config *input);
+void seat_cmd_apply(struct seat_config *seat);
 
 struct cmd_results *checkarg(int argc, const char *name,
 		enum expected_args type, int val);
@@ -111,6 +113,7 @@ sway_cmd cmd_gaps;
 sway_cmd cmd_hide_edge_borders;
 sway_cmd cmd_include;
 sway_cmd cmd_input;
+sway_cmd cmd_seat;
 sway_cmd cmd_ipc;
 sway_cmd cmd_kill;
 sway_cmd cmd_layout;
@@ -193,6 +196,8 @@ sway_cmd input_cmd_pointer_accel;
 sway_cmd input_cmd_scroll_method;
 sway_cmd input_cmd_tap;
 
+sway_cmd seat_cmd_attach;
+
 sway_cmd cmd_ipc_cmd;
 sway_cmd cmd_ipc_events;
 sway_cmd cmd_ipc_event_cmd;

include/sway/config.h

@@ -69,7 +69,22 @@ struct input_config {
 
 	bool capturable;
 	struct wlr_box region;
-	char *seat;
+};
+
+/**
+ * Options for misc device configurations that happen in the seat block
+ */
+struct seat_attachment_config {
+	char *identifier;
+	// TODO other things are configured here for some reason
+};
+
+/**
+ * Options for multiseat and other misc device configurations
+ */
+struct seat_config {
+	char *name;
+	list_t *attachments; // list of seat_attachment configs
 };
 
 /**
@@ -260,6 +275,7 @@ struct sway_config {
 	list_t *pid_workspaces;
 	list_t *output_configs;
 	list_t *input_configs;
+	list_t *seat_configs;
 	list_t *criteria;
 	list_t *no_focus;
 	list_t *active_bar_modifiers;
@@ -358,9 +374,16 @@ struct cmd_results *check_security_config();
 int input_identifier_cmp(const void *item, const void *data);
 struct input_config *new_input_config(const char* identifier);
 void merge_input_config(struct input_config *dst, struct input_config *src);
-void apply_input_config(struct input_config *ic, struct libinput_device *dev);
 void free_input_config(struct input_config *ic);
 
+int seat_name_cmp(const void *item, const void *data);
+struct seat_config *new_seat_config(const char* name);
+void merge_seat_config(struct seat_config *dst, struct seat_config *src);
+void free_seat_config(struct seat_config *ic);
+struct seat_attachment_config *seat_attachment_config_new();
+struct seat_attachment_config *seat_config_get_attachment(
+		struct seat_config *seat_config, char *identifier);
+
 int output_name_cmp(const void *item, const void *data);
 void merge_output_config(struct output_config *dst, struct output_config *src);
 /** Sets up a WLC output handle based on a given output_config.

include/sway/input/input-manager.h

@@ -6,6 +6,7 @@
 #include "list.h"
 
 extern struct input_config *current_input_config;
+extern struct seat_config *current_seat_config;
 
 /**
  * The global singleton input manager
@@ -17,7 +18,6 @@ struct sway_input_device {
 	char *identifier;
 	struct wlr_input_device *wlr_device;
 	struct input_config *config;
-	struct sway_keyboard *keyboard; // managed by the seat
 	struct wl_list link;
 };
 
@@ -40,7 +40,10 @@ void sway_input_manager_set_focus(struct sway_input_manager *input,
 
 void sway_input_manager_configure_xcursor(struct sway_input_manager *input);
 
-void sway_input_manager_apply_config(struct sway_input_manager *input,
-		struct input_config *config);
+void sway_input_manager_apply_input_config(struct sway_input_manager *input,
+		struct input_config *input_config);
+
+void sway_input_manager_apply_seat_config(struct sway_input_manager *input,
+		struct seat_config *seat_config);
 
 #endif

include/sway/input/keyboard.h

@@ -1,15 +1,18 @@
 #include "sway/input/seat.h"
 
 struct sway_keyboard {
-	struct sway_seat *seat;
-	struct sway_input_device *device;
+	struct sway_seat_device *seat_device;
 	struct wl_list link; // sway_seat::keyboards
 
+	struct xkb_keymap *keymap;
+
 	struct wl_listener keyboard_key;
 	struct wl_listener keyboard_modifiers;
 };
 
 struct sway_keyboard *sway_keyboard_create(struct sway_seat *seat,
-		struct sway_input_device *device);
+		struct sway_seat_device *device);
+
+void sway_keyboard_configure(struct sway_keyboard *keyboard);
 
 void sway_keyboard_destroy(struct sway_keyboard *keyboard);

include/sway/input/seat.h

@@ -4,16 +4,25 @@
 #include <wlr/types/wlr_seat.h>
 #include "sway/input/input-manager.h"
 
+struct sway_seat_device {
+	struct sway_seat *sway_seat;
+	struct sway_input_device *input_device;
+	struct sway_keyboard *keyboard;
+	struct seat_attachment_config *attachment_config;
+	struct wl_list link; // sway_seat::devices
+};
+
 struct sway_seat {
-	struct wlr_seat *seat;
+	struct wlr_seat *wlr_seat;
+	struct seat_config *config;
 	struct sway_cursor *cursor;
 	struct sway_input_manager *input;
 	swayc_t *focus;
 
-	list_t *devices;
-
 	struct wl_listener focus_destroy;
 
+	struct wl_list devices; // sway_seat_device::link
+
 	struct wl_list link; // input_manager::seats
 };
 
@@ -23,6 +32,9 @@ struct sway_seat *sway_seat_create(struct sway_input_manager *input,
 void sway_seat_add_device(struct sway_seat *seat,
 		struct sway_input_device *device);
 
+void sway_seat_configure_device(struct sway_seat *seat,
+		struct sway_input_device *device);
+
 void sway_seat_remove_device(struct sway_seat *seat,
 		struct sway_input_device *device);
 
@@ -30,4 +42,6 @@ void sway_seat_configure_xcursor(struct sway_seat *seat);
 
 void sway_seat_set_focus(struct sway_seat *seat, swayc_t *container);
 
+void sway_seat_set_config(struct sway_seat *seat, struct seat_config *seat_config);
+
 #endif

sway/commands.c

@@ -71,7 +71,24 @@ void input_cmd_apply(struct input_config *input) {
 	}
 
 	current_input_config = input;
-	sway_input_manager_apply_config(input_manager, input);
+	sway_input_manager_apply_input_config(input_manager, input);
+}
+
+void seat_cmd_apply(struct seat_config *seat) {
+	int i;
+	i = list_seq_find(config->seat_configs, seat_name_cmp, seat->name);
+	if (i >= 0) {
+		// merge existing config
+		struct seat_config *sc = config->seat_configs->items[i];
+		merge_seat_config(sc, seat);
+		free_seat_config(seat);
+		seat = sc;
+	} else {
+		list_add(config->seat_configs, seat);
+	}
+
+	current_seat_config = seat;
+	sway_input_manager_apply_seat_config(input_manager, seat);
 }
 
 /**
@@ -115,6 +132,7 @@ static struct cmd_handler handlers[] = {
 	{ "exit", cmd_exit },
 	{ "include", cmd_include },
 	{ "input", cmd_input },
+	{ "seat", cmd_seat },
 };
 
 static int handler_compare(const void *_a, const void *_b) {
@@ -135,19 +153,27 @@ static struct cmd_handler input_handlers[] = {
 	{ "natural_scroll", input_cmd_natural_scroll },
 	{ "pointer_accel", input_cmd_pointer_accel },
 	{ "scroll_method", input_cmd_scroll_method },
-	{ "seat", input_cmd_seat },
 	{ "tap", input_cmd_tap },
 };
 
+// must be in order for the bsearch
+static struct cmd_handler seat_handlers[] = {
+	{ "attach", seat_cmd_attach },
+};
+
 static struct cmd_handler *find_handler(char *line, enum cmd_status block) {
 	struct cmd_handler d = { .command=line };
 	struct cmd_handler *res = NULL;
-	sway_log(L_DEBUG, "find_handler(%s) %d", line, block == CMD_BLOCK_INPUT);
+	sway_log(L_DEBUG, "find_handler(%s) %d", line, block == CMD_BLOCK_SEAT);
 
 	if (block == CMD_BLOCK_INPUT) {
 		res = bsearch(&d, input_handlers,
 				sizeof(input_handlers) / sizeof(struct cmd_handler),
 				sizeof(struct cmd_handler), handler_compare);
+	} else if (block == CMD_BLOCK_SEAT) {
+		res = bsearch(&d, seat_handlers,
+				sizeof(seat_handlers) / sizeof(struct cmd_handler),
+				sizeof(struct cmd_handler), handler_compare);
 	} else {
 		res = bsearch(&d, handlers,
 				sizeof(handlers) / sizeof(struct cmd_handler),

sway/commands/input/seat.c

@@ -1,28 +0,0 @@
-#define _XOPEN_SOURCE 700
-#include <string.h>
-#include <strings.h>
-#include "sway/commands.h"
-#include "sway/input/input-manager.h"
-#include "log.h"
-
-struct cmd_results *input_cmd_seat(int argc, char **argv) {
-	sway_log(L_DEBUG, "seat for device:  %d %s",
-		current_input_config==NULL, current_input_config->identifier);
-	struct cmd_results *error = NULL;
-	if ((error = checkarg(argc, "seat", EXPECTED_AT_LEAST, 1))) {
-		return error;
-	}
-	if (!current_input_config) {
-		return cmd_results_new(CMD_FAILURE, "seat",
-			"No input device defined.");
-	}
-	struct input_config *new_config =
-		new_input_config(current_input_config->identifier);
-
-	// TODO validate seat name
-	free(new_config->seat);
-	new_config->seat = strdup(argv[0]);
-
-	input_cmd_apply(new_config);
-	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
-}

sway/commands/seat.c

@@ -0,0 +1,35 @@
+#include <string.h>
+#include <strings.h>
+#include "sway/commands.h"
+#include "sway/input/input-manager.h"
+#include "log.h"
+
+struct cmd_results *cmd_seat(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "seat", EXPECTED_AT_LEAST, 2))) {
+		return error;
+	}
+
+	if (config->reading && strcmp("{", argv[1]) == 0) {
+		current_seat_config = new_seat_config(argv[0]);
+		sway_log(L_DEBUG, "entering seat block: %s", current_seat_config->name);
+		return cmd_results_new(CMD_BLOCK_SEAT, NULL, NULL);
+	}
+
+	if (argc > 2) {
+		int argc_new = argc-2;
+		char **argv_new = argv+2;
+
+		struct cmd_results *res;
+		current_seat_config = new_seat_config(argv[0]);
+		if (strcasecmp("attach", argv[1]) == 0) {
+			res = seat_cmd_attach(argc_new, argv_new);
+		} else {
+			res = cmd_results_new(CMD_INVALID, "seat <name>", "Unknown command %s", argv[1]);
+		}
+		current_seat_config = NULL;
+		return res;
+	}
+
+	return cmd_results_new(CMD_BLOCK_SEAT, NULL, NULL);
+}

sway/commands/seat/attach.c

@@ -0,0 +1,26 @@
+#define _XOPEN_SOURCE 700
+#include <string.h>
+#include <strings.h>
+#include "sway/input/input-manager.h"
+#include "sway/commands.h"
+#include "sway/config.h"
+#include "log.h"
+#include "stringop.h"
+
+struct cmd_results *seat_cmd_attach(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "attach", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+	if (!current_seat_config) {
+		return cmd_results_new(CMD_FAILURE, "attach", "No seat defined");
+	}
+
+	struct seat_config *new_config = new_seat_config(current_seat_config->name);
+	struct seat_attachment_config *new_attachment = seat_attachment_config_new();
+	new_attachment->identifier = strdup(argv[0]);
+	list_add(new_config->attachments, new_attachment);
+
+	seat_cmd_apply(new_config);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}

sway/config.c

@@ -45,6 +45,7 @@ static void config_defaults(struct sway_config *config) {
 	if (!(config->criteria = create_list())) goto cleanup;
 	if (!(config->no_focus = create_list())) goto cleanup;
 	if (!(config->input_configs = create_list())) goto cleanup;
+	if (!(config->seat_configs = create_list())) goto cleanup;
 	if (!(config->output_configs = create_list())) goto cleanup;
 
 	if (!(config->cmd_queue = create_list())) goto cleanup;
@@ -258,9 +259,7 @@ struct input_config *new_input_config(const char* identifier) {
 
 void merge_input_config(struct input_config *dst, struct input_config *src) {
 	if (src->identifier) {
-		if (dst->identifier) {
 		free(dst->identifier);
-		}
 		dst->identifier = strdup(src->identifier);
 	}
 	if (src->accel_profile != INT_MIN) {
@@ -300,7 +299,6 @@ void free_input_config(struct input_config *ic) {
 		return;
 	}
 	free(ic->identifier);
-	free(ic->seat);
 	free(ic);
 }
 
@@ -310,6 +308,128 @@ int input_identifier_cmp(const void *item, const void *data) {
 	return strcmp(ic->identifier, identifier);
 }
 
+struct seat_config *new_seat_config(const char* name) {
+	struct seat_config *seat = calloc(1, sizeof(struct seat_config));
+	if (!seat) {
+		sway_log(L_DEBUG, "Unable to allocate seat config");
+		return NULL;
+	}
+
+	sway_log(L_DEBUG, "new_seat_config(%s)", name);
+	seat->name = strdup(name);
+	if (!sway_assert(seat->name, "could not allocate name for seat")) {
+		return NULL;
+	}
+
+	seat->attachments = create_list();
+	if (!sway_assert(seat->attachments,
+				"could not allocate seat attachments list")) {
+		return NULL;
+	}
+
+	return seat;
+}
+
+struct seat_attachment_config *seat_attachment_config_new() {
+	struct seat_attachment_config *attachment =
+		calloc(1, sizeof(struct seat_attachment_config));
+	if (!attachment) {
+		sway_log(L_DEBUG, "cannot allocate attachment config");
+		return NULL;
+	}
+	return attachment;
+}
+
+static void seat_attachment_config_free(
+		struct seat_attachment_config *attachment) {
+	free(attachment->identifier);
+	free(attachment);
+	return;
+}
+
+static struct seat_attachment_config *seat_attachment_config_copy(
+		struct seat_attachment_config *attachment) {
+	struct seat_attachment_config *copy = seat_attachment_config_new();
+	if (!copy) {
+		return NULL;
+	}
+
+	copy->identifier = strdup(attachment->identifier);
+
+	return copy;
+}
+
+static void merge_seat_attachment_config(struct seat_attachment_config *dest,
+		struct seat_attachment_config *source) {
+	// nothing to merge yet, but there will be some day
+}
+
+void merge_seat_config(struct seat_config *dest, struct seat_config *source) {
+	if (source->name) {
+		free(dest->name);
+		dest->name = strdup(source->name);
+	}
+
+	for (int i = 0; i < source->attachments->length; ++i) {
+		struct seat_attachment_config *source_attachment =
+			source->attachments->items[i];
+		bool found = false;
+		for (int j = 0; j < dest->attachments->length; ++j) {
+			struct seat_attachment_config *dest_attachment =
+				dest->attachments->items[j];
+			if (strcmp(source_attachment->identifier,
+						dest_attachment->identifier) == 0) {
+				merge_seat_attachment_config(dest_attachment,
+					source_attachment);
+				found = true;
+			}
+		}
+
+		if (!found) {
+			struct seat_attachment_config *copy =
+				seat_attachment_config_copy(source_attachment);
+			if (copy) {
+				list_add(dest->attachments, copy);
+			}
+		}
+	}
+}
+
+void free_seat_config(struct seat_config *seat) {
+	if (!seat) {
+		return;
+	}
+
+	free(seat->name);
+	for (int i = 0; i < seat->attachments->length; ++i) {
+		struct seat_attachment_config *attachment =
+			seat->attachments->items[i];
+		seat_attachment_config_free(attachment);
+	}
+
+	list_free(seat->attachments);
+	free(seat);
+}
+
+int seat_name_cmp(const void *item, const void *data) {
+	const struct seat_config *sc = item;
+	const char *name = data;
+	return strcmp(sc->name, name);
+}
+
+struct seat_attachment_config *seat_config_get_attachment(
+		struct seat_config *seat_config, char *identifier) {
+	for (int i = 0; i < seat_config->attachments->length; ++i) {
+		struct seat_attachment_config *attachment =
+			seat_config->attachments->items[i];
+		if (strcmp(attachment->identifier, identifier) == 0) {
+			return attachment;
+		}
+	}
+
+	return NULL;
+}
+
 bool load_main_config(const char *file, bool is_active) {
 	char *path;
 	if (file != NULL) {
@@ -547,6 +667,14 @@ bool read_config(FILE *file, struct sway_config *config) {
 			}
 			break;
 
+		case CMD_BLOCK_SEAT:
+			if (block == CMD_BLOCK_END) {
+				block = CMD_BLOCK_SEAT;
+			} else {
+				sway_log(L_ERROR, "Invalid block '%s'", line);
+			}
+			break;
+
 		case CMD_BLOCK_BAR:
 			if (block == CMD_BLOCK_END) {
 				block = CMD_BLOCK_BAR;
@@ -601,6 +729,12 @@ bool read_config(FILE *file, struct sway_config *config) {
 				block = CMD_BLOCK_END;
 				break;
 
+			case CMD_BLOCK_SEAT:
+				sway_log(L_DEBUG, "End of seat block");
+				current_seat_config = NULL;
+				block = CMD_BLOCK_END;
+				break;
+
 			case CMD_BLOCK_BAR:
 				sway_log(L_DEBUG, "End of bar block");
 				config->current_bar = NULL;

sway/input/cursor.c

@@ -24,7 +24,7 @@ static void cursor_update_position(struct sway_cursor *cursor) {
 
 static void cursor_send_pointer_motion(struct sway_cursor *cursor,
 		uint32_t time) {
-	struct wlr_seat *seat = cursor->seat->seat;
+	struct wlr_seat *seat = cursor->seat->wlr_seat;
 	struct wlr_surface *surface = NULL;
 	double sx, sy;
 	swayc_t *swayc =
@@ -72,7 +72,7 @@ static void handle_cursor_button(struct wl_listener *listener, void *data) {
 		sway_seat_set_focus(cursor->seat, swayc);
 	}
 
-	wlr_seat_pointer_notify_button(cursor->seat->seat, event->time_msec,
+	wlr_seat_pointer_notify_button(cursor->seat->wlr_seat, event->time_msec,
 		event->button, event->state);
 }
 
@@ -80,7 +80,7 @@ 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,
+	wlr_seat_pointer_notify_axis(cursor->seat->wlr_seat, event->time_msec,
 		event->orientation, event->delta);
 }
 
@@ -173,7 +173,7 @@ struct sway_cursor *sway_cursor_create(struct sway_seat *seat) {
 	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,
+	wl_signal_add(&seat->wlr_seat->events.request_set_cursor,
 			&cursor->request_set_cursor);
 	cursor->request_set_cursor.notify = handle_request_set_cursor;
 

sway/input/input-manager.c

@@ -18,12 +18,13 @@ static const char *default_seat = "seat0";
 struct sway_input_manager *input_manager;
 
 struct input_config *current_input_config = NULL;
+struct seat_config *current_seat_config = NULL;
 
 static struct sway_seat *input_manager_get_seat(
 		struct sway_input_manager *input, const char *seat_name) {
 	struct sway_seat *seat = NULL;
 	wl_list_for_each(seat, &input->seats, link) {
-		if (strcmp(seat->seat->name, seat_name) == 0) {
+		if (strcmp(seat->wlr_seat->name, seat_name) == 0) {
 			return seat;
 		}
 	}
@@ -58,56 +59,88 @@ static char *get_device_identifier(struct wlr_input_device *device) {
 	return identifier;
 }
 
-static struct sway_input_device *input_sway_device_from_wlr(struct sway_input_manager *input,
-		struct wlr_input_device *device) {
-	struct sway_input_device *sway_device = NULL;
-	wl_list_for_each(sway_device, &input->devices, link) {
-		if (sway_device->wlr_device == device) {
-			return sway_device;
+static struct sway_input_device *input_sway_device_from_wlr(
+		struct sway_input_manager *input, struct wlr_input_device *device) {
+	struct sway_input_device *input_device = NULL;
+	wl_list_for_each(input_device, &input->devices, link) {
+		if (input_device->wlr_device == device) {
+			return input_device;
 		}
 	}
 	return NULL;
 }
 
-static struct sway_input_device *input_sway_device_from_config(struct sway_input_manager *input,
-		struct input_config *config) {
-	struct sway_input_device *sway_device = NULL;
-	wl_list_for_each(sway_device, &input->devices, link) {
-		if (strcmp(sway_device->identifier, config->identifier) == 0) {
-			return sway_device;
+static struct sway_input_device *input_sway_device_from_config(
+		struct sway_input_manager *input, struct input_config *config) {
+	struct sway_input_device *input_device = NULL;
+	wl_list_for_each(input_device, &input->devices, link) {
+		if (strcmp(input_device->identifier, config->identifier) == 0) {
+			return input_device;
 		}
 	}
 	return NULL;
 }
 
+static struct sway_input_device *input_sway_device_from_identifier(
+		struct sway_input_manager *input, char *identifier) {
+	struct sway_input_device *input_device = NULL;
+	wl_list_for_each(input_device, &input->devices, link) {
+		if (strcmp(input_device->identifier, identifier) == 0) {
+			return input_device;
+		}
+	}
+	return NULL;
+}
+
+static bool input_has_seat_configuration(struct sway_input_manager *input) {
+	struct sway_seat *seat = NULL;
+	wl_list_for_each(seat, &input->seats, link) {
+		if (seat->config) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
 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;
 
-	struct sway_input_device *sway_device =
+	struct sway_input_device *input_device =
 		calloc(1, sizeof(struct sway_input_device));
-	if (!sway_assert(sway_device, "could not allocate input device")) {
+	if (!sway_assert(input_device, "could not allocate input device")) {
 		return;
 	}
 
-	sway_device->wlr_device = device;
-	sway_device->identifier = get_device_identifier(device);
-	wl_list_insert(&input->devices, &sway_device->link);
+	input_device->wlr_device = device;
+	input_device->identifier = get_device_identifier(device);
+	wl_list_insert(&input->devices, &input_device->link);
 
 	// find config
 	for (int i = 0; i < config->input_configs->length; ++i) {
 		struct input_config *input_config = config->input_configs->items[i];
-		if (strcmp(input_config->identifier, sway_device->identifier) == 0) {
-			sway_device->config = input_config;
+		if (strcmp(input_config->identifier, input_device->identifier) == 0) {
+			input_device->config = input_config;
 			break;
 		}
 	}
 
-	const char *seat_name =
-		(sway_device->config ? sway_device->config->seat : default_seat);
-	struct sway_seat *seat = input_manager_get_seat(input, seat_name);
-	sway_seat_add_device(seat, sway_device);
+	struct sway_seat *seat = NULL;
+	if (!input_has_seat_configuration(input)) {
+		seat = input_manager_get_seat(input, default_seat);
+		sway_seat_add_device(seat, input_device);
+		return;
+	}
+
+	wl_list_for_each(seat, &input->seats, link) {
+		if (seat->config &&
+				(seat_config_get_attachment(seat->config, input_device->identifier) ||
+				seat_config_get_attachment(seat->config, "*"))) {
+			sway_seat_add_device(seat, input_device);
+		}
+	}
 }
 
 static void input_remove_notify(struct wl_listener *listener, void *data) {
@@ -115,21 +148,21 @@ static void input_remove_notify(struct wl_listener *listener, void *data) {
 		wl_container_of(listener, input, input_remove);
 	struct wlr_input_device *device = data;
 
-	struct sway_input_device *sway_device =
+	struct sway_input_device *input_device =
 		input_sway_device_from_wlr(input, device);
 
-	if (!sway_assert(sway_device, "could not find sway device")) {
+	if (!sway_assert(input_device, "could not find sway device")) {
 		return;
 	}
 
 	struct sway_seat *seat = NULL;
 	wl_list_for_each(seat, &input->seats, link) {
-		sway_seat_remove_device(seat, sway_device);
+		sway_seat_remove_device(seat, input_device);
 	}
 
-	wl_list_remove(&sway_device->link);
-	free(sway_device->identifier);
-	free(sway_device);
+	wl_list_remove(&input_device->link);
+	free(input_device->identifier);
+	free(input_device);
 }
 
 struct sway_input_manager *sway_input_manager_create(
@@ -139,7 +172,6 @@ struct sway_input_manager *sway_input_manager_create(
 	if (!input) {
 		return NULL;
 	}
-	// XXX probably don't need the full server
 	input->server = server;
 
 	wl_list_init(&input->devices);
@@ -177,22 +209,53 @@ void sway_input_manager_set_focus(struct sway_input_manager *input,
 	}
 }
 
-void sway_input_manager_apply_config(struct sway_input_manager *input,
+void sway_input_manager_apply_input_config(struct sway_input_manager *input,
 		struct input_config *input_config) {
-	struct sway_input_device *sway_device =
+	struct sway_input_device *input_device =
 		input_sway_device_from_config(input, input_config);
-	if (!sway_device) {
+	if (!input_device) {
 		return;
 	}
+	input_device->config = input_config;
 
 	struct sway_seat *seat = NULL;
 	wl_list_for_each(seat, &input->seats, link) {
-		sway_seat_remove_device(seat, sway_device);
+		sway_seat_configure_device(seat, input_device);
+	}
+}
+
+void sway_input_manager_apply_seat_config(struct sway_input_manager *input,
+		struct seat_config *seat_config) {
+	struct sway_seat *seat = input_manager_get_seat(input, seat_config->name);
+	// the old config is invalid so clear it
+	sway_seat_set_config(seat, NULL);
+
+	// clear devices
+	struct sway_input_device *input_device = NULL;
+	wl_list_for_each(input_device, &input->devices, link) {
+		sway_seat_remove_device(seat, input_device);
+	}
+
+	if (seat_config_get_attachment(seat_config, "*")) {
+		wl_list_for_each(input_device, &input->devices, link) {
+			sway_seat_add_device(seat, input_device);
+		}
+	} else {
+		for (int i = 0; i < seat_config->attachments->length; ++i) {
+			struct seat_attachment_config *attachment =
+				seat_config->attachments->items[i];
+
+			struct sway_input_device *device =
+				input_sway_device_from_identifier(input,
+					attachment->identifier);
+
+			if (device) {
+				sway_seat_add_device(seat, device);
+			}
+		}
 	}
 
-	const char *seat_name = (input_config->seat ? input_config->seat : default_seat);
-	seat = input_manager_get_seat(input, seat_name);
-	sway_seat_add_device(seat, sway_device);
+	sway_seat_set_config(seat, seat_config);
 }
 
 void sway_input_manager_configure_xcursor(struct sway_input_manager *input) {

sway/input/keyboard.c

@@ -5,32 +5,46 @@
 static void handle_keyboard_key(struct wl_listener *listener, void *data) {
 	struct sway_keyboard *keyboard =
 		wl_container_of(listener, keyboard, keyboard_key);
+	struct wlr_seat *wlr_seat = keyboard->seat_device->sway_seat->wlr_seat;
+	struct wlr_input_device *wlr_device =
+		keyboard->seat_device->input_device->wlr_device;
 	struct wlr_event_keyboard_key *event = data;
-	wlr_seat_set_keyboard(keyboard->seat->seat, keyboard->device->wlr_device);
-	wlr_seat_keyboard_notify_key(keyboard->seat->seat, event->time_msec,
-		event->keycode, event->state);
+	wlr_keyboard_set_keymap(wlr_device->keyboard, keyboard->keymap);
+	wlr_seat_set_keyboard(wlr_seat, wlr_device);
+	wlr_seat_keyboard_notify_key(wlr_seat, event->time_msec,event->keycode,
+		event->state);
 }
 
 static void handle_keyboard_modifiers(struct wl_listener *listener,
 		void *data) {
 	struct sway_keyboard *keyboard =
 		wl_container_of(listener, keyboard, keyboard_modifiers);
-	wlr_seat_set_keyboard(keyboard->seat->seat, keyboard->device->wlr_device);
-	wlr_seat_keyboard_notify_modifiers(keyboard->seat->seat);
+	struct wlr_seat *wlr_seat = keyboard->seat_device->sway_seat->wlr_seat;
+	struct wlr_input_device *wlr_device =
+		keyboard->seat_device->input_device->wlr_device;
+	wlr_keyboard_set_keymap(wlr_device->keyboard, keyboard->keymap);
+	wlr_seat_set_keyboard(wlr_seat, wlr_device);
+	wlr_seat_keyboard_notify_modifiers(wlr_seat);
 }
 
 struct sway_keyboard *sway_keyboard_create(struct sway_seat *seat,
-		struct sway_input_device *device) {
+		struct sway_seat_device *device) {
 	struct sway_keyboard *keyboard =
 		calloc(1, sizeof(struct sway_keyboard));
 	if (!sway_assert(keyboard, "could not allocate sway keyboard")) {
 		return NULL;
 	}
 
-	keyboard->device = device;
-	keyboard->seat = seat;
+	keyboard->seat_device = device;
+	device->keyboard = keyboard;
 
-	// TODO keyboard config
+	wl_list_init(&keyboard->keyboard_key.link);
+	wl_list_init(&keyboard->keyboard_modifiers.link);
+
+	return keyboard;
+}
+
+void sway_keyboard_configure(struct sway_keyboard *keyboard) {
 	struct xkb_rule_names rules;
 	memset(&rules, 0, sizeof(rules));
 	rules.rules = getenv("XKB_DEFAULT_RULES");
@@ -38,27 +52,32 @@ struct sway_keyboard *sway_keyboard_create(struct sway_seat *seat,
 	rules.layout = getenv("XKB_DEFAULT_LAYOUT");
 	rules.variant = getenv("XKB_DEFAULT_VARIANT");
 	rules.options = getenv("XKB_DEFAULT_OPTIONS");
+
 	struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
 	if (!sway_assert(context, "cannot create XKB context")) {
-		return NULL;
+		return;
 	}
 
-	wlr_keyboard_set_keymap(device->wlr_device->keyboard,
-		xkb_map_new_from_names(context, &rules, XKB_KEYMAP_COMPILE_NO_FLAGS));
+	keyboard->keymap =
+		xkb_keymap_new_from_names(context, &rules, XKB_KEYMAP_COMPILE_NO_FLAGS);
+	wlr_keyboard_set_keymap(keyboard->seat_device->input_device->wlr_device->keyboard, keyboard->keymap);
 	xkb_context_unref(context);
 
-	wl_signal_add(&device->wlr_device->keyboard->events.key,
+	wl_list_remove(&keyboard->keyboard_key.link);
+	wl_signal_add(
+		&keyboard->seat_device->input_device->wlr_device->keyboard->events.key,
 		&keyboard->keyboard_key);
 	keyboard->keyboard_key.notify = handle_keyboard_key;
 
-	wl_signal_add(&device->wlr_device->keyboard->events.modifiers,
+	wl_list_remove(&keyboard->keyboard_modifiers.link);
+	wl_signal_add(
+		&keyboard->seat_device->input_device->wlr_device->keyboard->events.modifiers,
 		&keyboard->keyboard_modifiers);
 	keyboard->keyboard_modifiers.notify = handle_keyboard_modifiers;
-
-	return keyboard;
 }
 
 void sway_keyboard_destroy(struct sway_keyboard *keyboard) {
+	xkb_keymap_unref(keyboard->keymap);
 	wl_list_remove(&keyboard->keyboard_key.link);
 	wl_list_remove(&keyboard->keyboard_modifiers.link);
 	wl_list_remove(&keyboard->link);

sway/input/seat.c

@@ -9,6 +9,18 @@
 #include "sway/view.h"
 #include "log.h"
 
+static void seat_device_destroy(struct sway_seat_device *seat_device) {
+	if (!seat_device) {
+		return;
+	}
+
+	sway_keyboard_destroy(seat_device->keyboard);
+	wlr_cursor_detach_input_device(seat_device->sway_seat->cursor->cursor,
+		seat_device->input_device->wlr_device);
+	wl_list_remove(&seat_device->link);
+	free(seat_device);
+}
+
 struct sway_seat *sway_seat_create(struct sway_input_manager *input,
 		const char *seat_name) {
 	struct sway_seat *seat = calloc(1, sizeof(struct sway_seat));
@@ -16,22 +28,22 @@ struct sway_seat *sway_seat_create(struct sway_input_manager *input,
 		return NULL;
 	}
 
-	seat->seat = wlr_seat_create(input->server->wl_display, seat_name);
-	if (!sway_assert(seat->seat, "could not allocate seat")) {
+	seat->wlr_seat = wlr_seat_create(input->server->wl_display, seat_name);
+	if (!sway_assert(seat->wlr_seat, "could not allocate seat")) {
 		return NULL;
 	}
 
 	seat->cursor = sway_cursor_create(seat);
 	if (!seat->cursor) {
-		wlr_seat_destroy(seat->seat);
+		wlr_seat_destroy(seat->wlr_seat);
 		free(seat);
 		return NULL;
 	}
 
 	seat->input = input;
-	seat->devices = create_list();
+	wl_list_init(&seat->devices);
 
-	wlr_seat_set_capabilities(seat->seat,
+	wlr_seat_set_capabilities(seat->wlr_seat,
 		WL_SEAT_CAPABILITY_KEYBOARD |
 		WL_SEAT_CAPABILITY_POINTER |
 		WL_SEAT_CAPABILITY_TOUCH);
@@ -43,88 +55,94 @@ struct sway_seat *sway_seat_create(struct sway_input_manager *input,
 	return seat;
 }
 
-static void seat_add_pointer(struct sway_seat *seat,
-		struct sway_input_device *sway_device) {
+static void seat_configure_pointer(struct sway_seat *seat,
+		struct sway_seat_device *sway_device) {
 	// TODO pointer configuration
 	wlr_cursor_attach_input_device(seat->cursor->cursor,
-		sway_device->wlr_device);
+		sway_device->input_device->wlr_device);
 }
 
-static void seat_add_keyboard(struct sway_seat *seat,
-		struct sway_input_device *device) {
-	// TODO keyboard configuration
-	sway_keyboard_create(seat, device);
-	wlr_seat_set_keyboard(seat->seat, device->wlr_device);
+static void seat_configure_keyboard(struct sway_seat *seat,
+		struct sway_seat_device *seat_device) {
+	if (!seat_device->keyboard) {
+		sway_keyboard_create(seat, seat_device);
+	}
+	sway_keyboard_configure(seat_device->keyboard);
 }
 
-bool sway_seat_has_device(struct sway_seat *seat,
-		struct sway_input_device *device) {
-	return false;
+static struct sway_seat_device *sway_seat_get_device(struct sway_seat *seat,
+		struct sway_input_device *input_device) {
+	struct sway_seat_device *seat_device = NULL;
+	wl_list_for_each(seat_device, &seat->devices, link) {
+		if (seat_device->input_device == input_device) {
+			return seat_device;
+		}
 	}
 
-void sway_seat_add_device(struct sway_seat *seat,
-		struct sway_input_device *device) {
-	if (sway_seat_has_device(seat, device)) {
+	return NULL;
+}
+
+void sway_seat_configure_device(struct sway_seat *seat,
+		struct sway_input_device *input_device) {
+	struct sway_seat_device *seat_device =
+		sway_seat_get_device(seat, input_device);
+	if (!seat_device) {
 		return;
 	}
 
-	sway_log(L_DEBUG, "input add: %s", device->identifier);
-	switch (device->wlr_device->type) {
+	if (seat->config) {
+		seat_device->attachment_config =
+			seat_config_get_attachment(seat->config, input_device->identifier);
+	}
+
+	switch (input_device->wlr_device->type) {
 		case WLR_INPUT_DEVICE_POINTER:
-			seat_add_pointer(seat, device);
+			seat_configure_pointer(seat, seat_device);
 			break;
 		case WLR_INPUT_DEVICE_KEYBOARD:
-			seat_add_keyboard(seat, device);
+			seat_configure_keyboard(seat, seat_device);
+			wlr_seat_set_keyboard(seat->wlr_seat,
+				seat_device->input_device->wlr_device);
 			break;
 		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");
+			sway_log(L_DEBUG, "TODO: configure other devices");
 			break;
 	}
-
-	list_add(seat->devices, device);
 }
 
-static void seat_remove_keyboard(struct sway_seat *seat,
-		struct sway_input_device *device) {
-	if (device && device->keyboard) {
-		sway_keyboard_destroy(device->keyboard);
+void sway_seat_add_device(struct sway_seat *seat,
+		struct sway_input_device *input_device) {
+	if (sway_seat_get_device(seat, input_device)) {
+		return;
 	}
+
+	struct sway_seat_device *seat_device =
+		calloc(1, sizeof(struct sway_seat_device));
+	if (!seat_device) {
+		sway_log(L_DEBUG, "could not allocate seat device");
+		return;
 	}
 
-static void seat_remove_pointer(struct sway_seat *seat,
-		struct sway_input_device *device) {
-	wlr_cursor_detach_input_device(seat->cursor->cursor, device->wlr_device);
+	seat_device->sway_seat = seat;
+	seat_device->input_device = input_device;
+	wl_list_insert(&seat->devices, &seat_device->link);
+
+	sway_seat_configure_device(seat, input_device);
 }
 
 void sway_seat_remove_device(struct sway_seat *seat,
-		struct sway_input_device *device) {
-	sway_log(L_DEBUG, "input remove: %s", device->identifier);
-	if (!sway_seat_has_device(seat, device)) {
-		return;
-	}
+		struct sway_input_device *input_device) {
+	sway_log(L_DEBUG, "input remove: %s", input_device->identifier);
+	struct sway_seat_device *seat_device =
+		sway_seat_get_device(seat, input_device);
 
-	switch (device->wlr_device->type) {
-		case WLR_INPUT_DEVICE_POINTER:
-			seat_remove_pointer(seat, device);
-			break;
-		case WLR_INPUT_DEVICE_KEYBOARD:
-			seat_remove_keyboard(seat, device);
-			break;
-		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;
+	if (!seat_device) {
+		return;
 	}
 
-	for (int i = 0; i < seat->devices->length; ++i) {
-		if (seat->devices->items[i] == device) {
-			list_del(seat->devices, i);
-			break;
-		}
-	}
+	seat_device_destroy(seat_device);
 }
 
 void sway_seat_configure_xcursor(struct sway_seat *seat) {
@@ -135,7 +153,8 @@ void sway_seat_configure_xcursor(struct sway_seat *seat) {
 		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)) {
+					"Cannot create XCursor manager for theme %s",
+					cursor_theme)) {
 			return;
 		}
 	}
@@ -183,7 +202,7 @@ void sway_seat_set_focus(struct sway_seat *seat, swayc_t *container) {
 		view->iface.set_activated(view, true);
 		wl_signal_add(&container->events.destroy, &seat->focus_destroy);
 		seat->focus_destroy.notify = handle_focus_destroy;
-		wlr_seat_keyboard_notify_enter(seat->seat, view->surface);
+		wlr_seat_keyboard_notify_enter(seat->wlr_seat, view->surface);
 	}
 
 	seat->focus = container;
@@ -195,3 +214,29 @@ void sway_seat_set_focus(struct sway_seat *seat, swayc_t *container) {
 
 	}
 }
+
+void sway_seat_set_config(struct sway_seat *seat,
+		struct seat_config *seat_config) {
+	// clear configs
+	seat->config = NULL;
+
+	struct sway_seat_device *seat_device = NULL;
+	wl_list_for_each(seat_device, &seat->devices, link) {
+		seat_device->attachment_config = NULL;
+	}
+
+	if (!seat_config) {
+		return;
+	}
+
+	// add configs
+	seat->config = seat_config;
+
+	wl_list_for_each(seat_device, &seat->devices, link) {
+		seat_device->attachment_config =
+			seat_config_get_attachment(seat_config,
+				seat_device->input_device->identifier);
+		sway_seat_configure_device(seat, seat_device->input_device);
+	}
+
+}

sway/meson.build

@@ -11,7 +11,8 @@ sway_sources = files(
 	'commands/exec_always.c',
 	'commands/include.c',
 	'commands/input.c',
-	'commands/input/seat.c',
+	'commands/seat.c',
+	'commands/seat/attach.c',
 	'commands/input/accel_profile.c',
 	'commands/input/click_method.c',
 	'commands/input/drag_lock.c',