1 files changed, 266 insertions, 0 deletions
diff --git a/sway/input/input-manager.c b/sway/input/input-manager.c
new file mode 100644
index 00000000..1950b6d9
--- /dev/null
+++ b/sway/input/input-manager.c
@@ -0,0 +1,266 @@
+#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";
+
+// TODO make me not global
+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->wlr_seat->name, seat_name) == 0) {
+			return seat;
+		}
+	}
+
+	return sway_seat_create(input, seat_name);
+}
+
+static char *get_device_identifier(struct wlr_input_device *device) {
+	int vendor = device->vendor;
+	int product = device->product;
+	char *name = strdup(device->name);
+
+	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;
+}
+
+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 *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 *input_device =
+		calloc(1, sizeof(struct sway_input_device));
+	if (!sway_assert(input_device, "could not allocate input device")) {
+		return;
+	}
+
+	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, input_device->identifier) == 0) {
+			input_device->config = input_config;
+			break;
+		}
+	}
+
+	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) {
+	struct sway_input_manager *input =
+		wl_container_of(listener, input, input_remove);
+	struct wlr_input_device *device = data;
+
+	struct sway_input_device *input_device =
+		input_sway_device_from_wlr(input, 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, input_device);
+	}
+
+	wl_list_remove(&input_device->link);
+	free(input_device->identifier);
+	free(input_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;
+	}
+	input->server = server;
+
+	wl_list_init(&input->devices);
+	wl_list_init(&input->seats);
+
+	// 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;
+}
+
+bool sway_input_manager_has_focus(struct sway_input_manager *input,
+		swayc_t *container) {
+	struct sway_seat *seat = NULL;
+	wl_list_for_each(seat, &input->seats, link) {
+		if (seat->focus == container) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
+void sway_input_manager_set_focus(struct sway_input_manager *input,
+		swayc_t *container) {
+	struct sway_seat *seat ;
+	wl_list_for_each(seat, &input->seats, link) {
+		sway_seat_set_focus(seat, container);
+	}
+}
+
+void sway_input_manager_apply_input_config(struct sway_input_manager *input,
+		struct input_config *input_config) {
+	struct sway_input_device *input_device =
+		input_sway_device_from_config(input, input_config);
+	if (!input_device) {
+		return;
+	}
+	input_device->config = input_config;
+
+	struct sway_seat *seat = NULL;
+	wl_list_for_each(seat, &input->seats, link) {
+		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);
+			}
+		}
+	}
+
+	sway_seat_set_config(seat, seat_config);
+}
+
+void sway_input_manager_configure_xcursor(struct sway_input_manager *input) {
+	struct sway_seat *seat = NULL;
+	wl_list_for_each(seat, &input->seats, link) {
+		sway_seat_configure_xcursor(seat);
+	}
+}