1 files changed, 293 insertions, 0 deletions
diff --git a/sway/input/input-manager.c b/sway/input/input-manager.c
new file mode 100644
index 00000000..4459c43b
--- /dev/null
+++ b/sway/input/input-manager.c
@@ -0,0 +1,293 @@
+#define _XOPEN_SOURCE 700
+#include <ctype.h>
+#include <float.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <libinput.h>
+#include <math.h>
+#include "sway/config.h"
+#include "sway/input/input-manager.h"
+#include "sway/input/seat.h"
+#include "sway/server.h"
+#include "stringop.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);
+	name = strip_whitespace(name);
+
+	char *p = name;
+	for (; *p; ++p) {
+		if (*p == ' ') {
+			*p = '_';
+		}
+	}
+
+	const char *fmt = "%d:%d:%s";
+	int len = snprintf(NULL, 0, fmt, vendor, product, name) + 1;
+	char *identifier = malloc(len);
+	if (!identifier) {
+		sway_log(L_ERROR, "Unable to allocate unique input device name");
+		return NULL;
+	}
+
+	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 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);
+
+	sway_log(L_DEBUG, "adding device: '%s'",
+		input_device->identifier);
+
+	// 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)) {
+		sway_log(L_DEBUG, "no seat configuration, using default seat");
+		seat = input_manager_get_seat(input, default_seat);
+		sway_seat_add_device(seat, input_device);
+		return;
+	}
+
+	bool added = false;
+	wl_list_for_each(seat, &input->seats, link) {
+		bool has_attachment = seat->config &&
+			(seat_config_get_attachment(seat->config, input_device->identifier) ||
+			 seat_config_get_attachment(seat->config, "*"));
+
+		if (has_attachment) {
+			sway_seat_add_device(seat, input_device);
+			added = true;
+		}
+	}
+
+	if (!added) {
+		wl_list_for_each(seat, &input->seats, link) {
+			if (seat->config && seat->config->fallback == 1) {
+				sway_seat_add_device(seat, input_device);
+				added = true;
+			}
+		}
+	}
+
+	if (!added) {
+		sway_log(L_DEBUG,
+			"device '%s' is not configured on any seats",
+			input_device->identifier);
+	}
+}
+
+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;
+	}
+
+	sway_log(L_DEBUG, "removing device: '%s'",
+		input_device->identifier);
+
+	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 = NULL;
+	wl_list_for_each(input_device, &input->devices, link) {
+		if (strcmp(input_device->identifier, input_config->identifier) == 0) {
+			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) {
+	sway_log(L_DEBUG, "applying new seat config for seat %s",
+		seat_config->name);
+	struct sway_seat *seat = input_manager_get_seat(input, seat_config->name);
+	if (!seat) {
+		return;
+	}
+
+	sway_seat_set_config(seat, seat_config);
+
+	// for every device, try to add it to a seat and if no seat has it
+	// attached, add it to the fallback seats.
+	struct sway_input_device *input_device = NULL;
+	wl_list_for_each(input_device, &input->devices, link) {
+		list_t *seat_list = create_list();
+		struct sway_seat *seat = NULL;
+		wl_list_for_each(seat, &input->seats, link) {
+			if (!seat->config) {
+				continue;
+			}
+			if (seat_config_get_attachment(seat->config, "*") ||
+					seat_config_get_attachment(seat->config,
+						input_device->identifier)) {
+				list_add(seat_list, seat);
+			}
+		}
+
+		if (seat_list->length) {
+			wl_list_for_each(seat, &input->seats, link) {
+				bool attached = false;
+				for (int i = 0; i < seat_list->length; ++i) {
+					if (seat == seat_list->items[i]) {
+						attached = true;
+						break;
+					}
+				}
+				if (attached) {
+					sway_seat_add_device(seat, input_device);
+				} else {
+					sway_seat_remove_device(seat, input_device);
+				}
+			}
+		} else {
+			wl_list_for_each(seat, &input->seats, link) {
+				if (seat->config && seat->config->fallback == 1) {
+					sway_seat_add_device(seat, input_device);
+				} else {
+					sway_seat_remove_device(seat, input_device);
+				}
+			}
+		}
+		list_free(seat_list);
+	}
+}
+
+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);
+	}
+}