1 files changed, 304 insertions, 0 deletions

diff --git a/sway/input/input-manager.c b/sway/input/input-manager.c
new file mode 100644
index 00000000..52da8f5e
--- /dev/null
+++ b/sway/input/input-manager.c
@@ -0,0 +1,304 @@
+#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 inline int strlen_num(int num) {
+        if (num == 0) {
+                return 2;
+        }
+        return (int)((ceil(log10(abs(num)))+2));
+}
+
+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 = '_';
+                }
+        }
+
+        int len =
+                (strlen(name) +
+                strlen_num(device->vendor) +
+                strlen_num(device->product) +
+                3) * sizeof(char);
+
+        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 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) {
+                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);
+                        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);
+        }
+}