Establish sway input submodule

sway/input/input.c

@@ -0,0 +1,77 @@
+#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;
+}