Merge pull request #448 from colemickens/libinput

libinput configuration

CMake/FindLibInput.cmake

@@ -0,0 +1,66 @@
+#.rst:
+# FindLibInput
+# -------
+#
+# Find LibInput library
+#
+# Try to find LibInpu library. The following values are defined
+#
+# ::
+#
+#   LIBINPUT_FOUND         - True if libinput is available
+#   LIBINPUT_INCLUDE_DIRS  - Include directories for libinput
+#   LIBINPUT_LIBRARIES     - List of libraries for libinput
+#   LIBINPUT_DEFINITIONS   - List of definitions for libinput
+#
+# and also the following more fine grained variables
+#
+# ::
+#
+#   LIBINPUT_VERSION
+#   LIBINPUT_VERSION_MAJOR
+#   LIBINPUT_VERSION_MINOR
+#   LIBINPUT_VERSION_MICRO
+#
+#=============================================================================
+# Copyright (c) 2015 Jari Vetoniemi
+#
+# Distributed under the OSI-approved BSD License (the "License");
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
+include(FeatureSummary)
+set_package_properties(LibInput PROPERTIES
+   URL "http://freedesktop.org/wiki/Software/libinput/"
+   DESCRIPTION "Library to handle input devices")
+
+find_package(PkgConfig)
+pkg_check_modules(PC_INPUT QUIET libinput)
+find_library(LIBINPUT_LIBRARIES NAMES input HINTS ${PC_INPUT_LIBRARY_DIRS})
+find_path(LIBINPUT_INCLUDE_DIRS libinput.h HINTS ${PC_INPUT_INCLUDE_DIRS})
+
+set(LIBINPUT_VERSION ${PC_INPUT_VERSION})
+string(REPLACE "." ";" VERSION_LIST "${PC_INPUT_VERSION}")
+
+LIST(LENGTH VERSION_LIST n)
+if (n EQUAL 3)
+   list(GET VERSION_LIST 0 LIBINPUT_VERSION_MAJOR)
+   list(GET VERSION_LIST 1 LIBINPUT_VERSION_MINOR)
+   list(GET VERSION_LIST 2 LIBINPUT_VERSION_MICRO)
+endif ()
+
+# This is compatible with libinput-version.h that exists in upstream
+# but isn't in distribution (probably forgotten)
+set(LIBINPUT_DEFINITIONS ${PC_INPUT_CFLAGS_OTHER}
+   -DLIBINPUT_VERSION=\"${LIBINPUT_VERSION}\"
+   -DLIBINPUT_VERSION_MAJOR=${LIBINPUT_VERSION_MAJOR}
+   -DLIBINPUT_VERSION_MINOR=${LIBINPUT_VERSION_MINOR}
+   -DLIBINPUT_VERSION_MICRO=${LIBINPUT_VERSION_MICRO})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(LIBINPUT DEFAULT_MSG LIBINPUT_INCLUDE_DIRS LIBINPUT_LIBRARIES)
+mark_as_advanced(LIBINPUT_INCLUDE_DIRS LIBINPUT_LIBRARIES LIBINPUT_DEFINITIONS
+   LIBINPUT_VERSION LIBINPUT_VERSION_MAJOR LIBINPUT_VERSION_MICRO LIBINPUT_VERSION_MINOR)

CMakeLists.txt

@@ -57,6 +57,9 @@ find_package(Pango)
 find_package(GdkPixbuf)
 find_package(PAM)
 
+find_package(LibInput REQUIRED)
+include_directories(${LIBINPUT_INClUDE_DIRS})
+
 find_package(Backtrace)
 if(Backtrace_FOUND)
 	include_directories("${Backtrace_INCLUDE_DIRS}")

include/commands.h

@@ -17,7 +17,8 @@ enum cmd_status {
 	CMD_BLOCK_END,
 	CMD_BLOCK_MODE,
 	CMD_BLOCK_BAR,
-	CMD_BLOCK_BAR_COLORS
+	CMD_BLOCK_BAR_COLORS,
+	CMD_BLOCK_INPUT
 };
 
 /**

include/config.h

@@ -1,7 +1,9 @@
 #ifndef _SWAY_CONFIG_H
 #define _SWAY_CONFIG_H
 
+#include <libinput.h>
 #include <stdint.h>
+#include <wlc/geometry.h>
 #include <wlc/wlc.h>
 #include <xkbcommon/xkbcommon.h>
 #include "wayland-desktop-shell-server-protocol.h"
@@ -45,6 +47,25 @@ struct sway_mode {
 	list_t *bindings;
 };
 
+/**
+ * libinput options for input devices
+ */
+struct input_config {
+	char *identifier;
+	int click_method;
+	int drag_lock;
+	int dwt;
+	int middle_emulation;
+	int natural_scroll;
+	float pointer_accel;
+	int scroll_method;
+	int send_events;
+	int tap;
+
+	bool capturable;
+	struct wlc_geometry region;
+};
+
 /**
  * Size and position configuration for a particular output.
  *
@@ -136,6 +157,7 @@ struct sway_config {
 	list_t *cmd_queue;
 	list_t *workspace_outputs;
 	list_t *output_configs;
+	list_t *input_configs;
 	list_t *criteria;
 	list_t *active_bar_modifiers;
 	struct sway_mode *current_mode;
@@ -172,6 +194,12 @@ bool read_config(FILE *file, bool is_active);
  * Does variable replacement for a string based on the config's currently loaded variables.
  */
 char *do_var_replacement(char *str);
+
+int input_identifier_cmp(const void *item, const void *data);
+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 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/input.h

@@ -0,0 +1,23 @@
+#ifndef _SWAY_INPUT_H
+#define _SWAY_INPUT_H
+
+#include <libinput.h>
+#include "config.h"
+#include "list.h"
+
+struct input_config *new_input_config(const char* identifier);
+
+char* libinput_dev_unique_id(struct libinput_device *dev);
+
+/**
+ * Global input device list.
+ */
+extern list_t *input_devices;
+
+/**
+ * Pointer used when reading input blocked.
+ * Shared so that it can be cleared from commands.c when closing the block
+ */
+extern struct input_config *current_input_config;
+
+#endif

include/ipc.h

@@ -5,11 +5,12 @@ enum ipc_command_type {
 	IPC_COMMAND = 0,
 	IPC_GET_WORKSPACES = 1,
 	IPC_SUBSCRIBE = 2,
-	IPC_GET_OUTPUTS	= 3,
+	IPC_GET_OUTPUTS = 3,
 	IPC_GET_TREE = 4,
 	IPC_GET_MARKS = 5,
 	IPC_GET_BAR_CONFIG = 6,
-	IPC_GET_VERSION	= 7,
+	IPC_GET_VERSION = 7,
+	IPC_GET_INPUTS = 8,
 	// Events send from sway to clients. Events have the higest bit set.
 	IPC_EVENT_WORKSPACE = (1 << 31 | 0),
 	IPC_EVENT_OUTPUT = (1 << 31 | 1),
@@ -18,6 +19,7 @@ enum ipc_command_type {
 	IPC_EVENT_BARCONFIG_UPDATE = (1 << 31 | 4),
 	IPC_EVENT_BINDING = (1 << 31 | 5),
 	IPC_EVENT_MODIFIER = (1 << 31 | 6),
+	IPC_EVENT_INPUT = (1 << 31 | 7),
 	IPC_SWAY_GET_PIXELS = 0x81
 };
 

sway/CMakeLists.txt

@@ -4,6 +4,7 @@ include_directories(
 	${PCRE_INCLUDE_DIRS}
 	${JSONC_INCLUDE_DIRS}
 	${XKBCOMMON_INCLUDE_DIRS}
+	${LIBINPUT_LIBRARIES}
 )
 
 add_executable(sway
@@ -15,6 +16,7 @@ add_executable(sway
 	extensions.c
 	focus.c
 	handlers.c
+	input.c
 	input_state.c
 	ipc-server.c
 	layout.c
@@ -32,6 +34,7 @@ target_link_libraries(sway
 	${PCRE_LIBRARIES}
 	${JSONC_LIBRARIES}
 	${WAYLAND_SERVER_LIBRARIES}
+	${LIBINPUT_LIBRARIES}
 	m
 )
 

sway/commands.c

@@ -11,6 +11,9 @@
 #include <wordexp.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <limits.h>
+#include <float.h>
+#include <libinput.h>
 #include "stringop.h"
 #include "layout.h"
 #include "focus.h"
@@ -26,6 +29,8 @@
 #include "input_state.h"
 #include "criteria.h"
 #include "ipc-server.h"
+#include "list.h"
+#include "input.h"
 
 typedef struct cmd_results *sway_cmd(int argc, char **argv);
 
@@ -49,6 +54,7 @@ static sway_cmd cmd_focus_follows_mouse;
 static sway_cmd cmd_for_window;
 static sway_cmd cmd_fullscreen;
 static sway_cmd cmd_gaps;
+static sway_cmd cmd_input;
 static sway_cmd cmd_kill;
 static sway_cmd cmd_layout;
 static sway_cmd cmd_log_colors;
@@ -866,6 +872,293 @@ static struct cmd_results *cmd_orientation(int argc, char **argv) {
 	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }
 
+static void input_cmd_apply(struct input_config *input) {
+	int i;
+	i = list_seq_find(config->input_configs, input_identifier_cmp, input->identifier);
+	if (i >= 0) {
+		// merge existing config
+		struct input_config *ic = config->input_configs->items[i];
+		merge_input_config(ic, input);
+		free_input_config(input);
+		input = ic;
+	} else {
+		list_add(config->input_configs, input);
+	}
+
+	current_input_config = input;
+
+	if (input->identifier) {
+		// Try to find the input device and apply configuration now. If
+		// this is during startup then there will be no container and config
+		// will be applied during normal "new input" event from wlc.
+		struct libinput_device *device = NULL;
+		for (int i = 0; i < input_devices->length; ++i) {
+			device = input_devices->items[i];
+			char* dev_identifier = libinput_dev_unique_id(device);
+			int match = dev_identifier && strcmp(dev_identifier, input->identifier) == 0;
+			free(dev_identifier);
+			if (match) {
+				apply_input_config(input, device);
+				break;
+			}
+		}
+	}
+}
+
+static struct cmd_results *input_cmd_click_method(int argc, char **argv) {
+	sway_log(L_DEBUG, "click_method for device:  %d %s", current_input_config==NULL, current_input_config->identifier);
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "click_method", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+	if (!current_input_config) {
+		return cmd_results_new(CMD_FAILURE, "click_method", "No input device defined.");
+	}
+	struct input_config *new_config = new_input_config(current_input_config->identifier);
+
+	if (strcasecmp(argv[0], "none") == 0) {
+		new_config->click_method = LIBINPUT_CONFIG_CLICK_METHOD_NONE;
+	} else if (strcasecmp(argv[0], "button_areas") == 0) {
+		new_config->click_method = LIBINPUT_CONFIG_CLICK_METHOD_BUTTON_AREAS;
+	} else if (strcasecmp(argv[0], "clickfinger") == 0) {
+		new_config->click_method = LIBINPUT_CONFIG_CLICK_METHOD_CLICKFINGER;
+	} else {
+		return cmd_results_new(CMD_INVALID, "click_method", "Expected 'click_method <none|button_areas|clickfinger'");
+	}
+
+	input_cmd_apply(new_config);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
+static struct cmd_results *input_cmd_drag_lock(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "drag_lock", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+	if (!current_input_config) {
+		return cmd_results_new(CMD_FAILURE, "drag_lock", "No input device defined.");
+	}
+	struct input_config *new_config = new_input_config(current_input_config->identifier);
+
+	if (strcasecmp(argv[0], "enabled") == 0) {
+		new_config->drag_lock = LIBINPUT_CONFIG_DRAG_LOCK_ENABLED;
+	} else if (strcasecmp(argv[0], "disabled") == 0) {
+		new_config->drag_lock = LIBINPUT_CONFIG_DRAG_LOCK_DISABLED;
+	} else {
+		return cmd_results_new(CMD_INVALID, "drag_lock", "Expected 'drag_lock <enabled|disabled>'");
+	}
+
+	input_cmd_apply(new_config);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
+static struct cmd_results *input_cmd_dwt(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "dwt", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+	if (!current_input_config) {
+		return cmd_results_new(CMD_FAILURE, "dwt", "No input device defined.");
+	}
+	struct input_config *new_config = new_input_config(current_input_config->identifier);
+
+	if (strcasecmp(argv[0], "enabled") == 0) {
+		new_config->dwt = LIBINPUT_CONFIG_DWT_ENABLED;
+	} else if (strcasecmp(argv[0], "disabled") == 0) {
+		new_config->dwt = LIBINPUT_CONFIG_DWT_DISABLED;
+	} else {
+		return cmd_results_new(CMD_INVALID, "dwt", "Expected 'dwt <enabled|disabled>'");
+	}
+
+	input_cmd_apply(new_config);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
+static struct cmd_results *input_cmd_events(int argc, char **argv) {
+	sway_log(L_DEBUG, "events for device: %s", current_input_config->identifier);
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "events", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+	if (!current_input_config) {
+		return cmd_results_new(CMD_FAILURE, "events", "No input device defined.");
+	}
+	struct input_config *new_config = new_input_config(current_input_config->identifier);
+
+	if (strcasecmp(argv[0], "enabled") == 0) {
+		new_config->send_events = LIBINPUT_CONFIG_SEND_EVENTS_ENABLED;
+	} else if (strcasecmp(argv[0], "disabled") == 0) {
+		new_config->send_events = LIBINPUT_CONFIG_SEND_EVENTS_DISABLED;
+	} else if (strcasecmp(argv[0], "disabled_on_external_mouse") == 0) {
+		new_config->send_events = LIBINPUT_CONFIG_SEND_EVENTS_DISABLED_ON_EXTERNAL_MOUSE;
+	} else {
+		return cmd_results_new(CMD_INVALID, "events", "Expected 'events <enabled|disabled|disabled_on_external_mouse>'");
+	}
+
+	input_cmd_apply(new_config);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
+static struct cmd_results *input_cmd_middle_emulation(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "middle_emulation", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+	if (!current_input_config) {
+		return cmd_results_new(CMD_FAILURE, "middle_emulation", "No input device defined.");
+	}
+	struct input_config *new_config = new_input_config(current_input_config->identifier);
+
+	if (strcasecmp(argv[0], "enabled") == 0) {
+		new_config->middle_emulation = LIBINPUT_CONFIG_MIDDLE_EMULATION_ENABLED;
+	} else if (strcasecmp(argv[0], "disabled") == 0) {
+		new_config->middle_emulation = LIBINPUT_CONFIG_MIDDLE_EMULATION_DISABLED;
+	} else {
+		return cmd_results_new(CMD_INVALID, "middle_emulation", "Expected 'middle_emulation <enabled|disabled>'");
+	}
+
+	input_cmd_apply(new_config);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
+static struct cmd_results *input_cmd_natural_scroll(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "natural_scroll", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+	if (!current_input_config) {
+		return cmd_results_new(CMD_FAILURE, "natural_scoll", "No input device defined.");
+	}
+	struct input_config *new_config = new_input_config(current_input_config->identifier);
+
+	if (strcasecmp(argv[0], "enabled") == 0) {
+		new_config->natural_scroll = 1;
+	} else if (strcasecmp(argv[0], "disabled") == 0) {
+		new_config->natural_scroll = 0;
+	} else {
+		return cmd_results_new(CMD_INVALID, "natural_scroll", "Expected 'natural_scroll <enabled|disabled>'");
+	}
+	
+	input_cmd_apply(new_config);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
+static struct cmd_results *input_cmd_pointer_accel(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "pointer_accel", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+	if (!current_input_config) {
+		return cmd_results_new(CMD_FAILURE, "pointer_accel", "No input device defined.");
+	}
+	struct input_config *new_config = new_input_config(current_input_config->identifier);
+
+	float pointer_accel = atof(argv[0]);
+	if (pointer_accel < -1 || pointer_accel > 1) {
+		return cmd_results_new(CMD_INVALID, "pointer_accel", "Input out of range [-1, 1]");
+	}
+	new_config->pointer_accel = pointer_accel;
+
+	input_cmd_apply(new_config);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
+static struct cmd_results *input_cmd_scroll_method(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "scroll_method", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+	if (!current_input_config) {
+		return cmd_results_new(CMD_FAILURE, "scroll_method", "No input device defined.");
+	}
+	struct input_config *new_config = new_input_config(current_input_config->identifier);
+
+	if (strcasecmp(argv[0], "none") == 0) {
+		new_config->scroll_method = LIBINPUT_CONFIG_SCROLL_NO_SCROLL;
+	} else if (strcasecmp(argv[0], "two_finger") == 0) {
+		new_config->scroll_method = LIBINPUT_CONFIG_SCROLL_2FG;
+	} else if (strcasecmp(argv[0], "edge") == 0) {
+		new_config->scroll_method = LIBINPUT_CONFIG_SCROLL_EDGE;
+	} else if (strcasecmp(argv[0], "on_button_down") == 0) {
+		new_config->scroll_method = LIBINPUT_CONFIG_SCROLL_ON_BUTTON_DOWN;
+	} else {
+		return cmd_results_new(CMD_INVALID, "scroll_method", "Expected 'scroll_method <none|two_finger|edge|on_button_down>'");
+	}
+
+	input_cmd_apply(new_config);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
+static struct cmd_results *input_cmd_tap(int argc, char **argv) {
+	sway_log(L_DEBUG, "tap for device: %s", current_input_config->identifier);
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "tap", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+	if (!current_input_config) {
+		return cmd_results_new(CMD_FAILURE, "tap", "No input device defined.");
+	}
+	struct input_config *new_config = new_input_config(current_input_config->identifier);
+
+	if (strcasecmp(argv[0], "enabled") == 0) {
+		new_config->tap = LIBINPUT_CONFIG_TAP_ENABLED;
+	} else if (strcasecmp(argv[0], "disabled") == 0) {
+		new_config->tap = LIBINPUT_CONFIG_TAP_DISABLED;
+	} else {
+		return cmd_results_new(CMD_INVALID, "tap", "Expected 'tap <enabled|disabled>'");
+	}
+
+	sway_log(L_DEBUG, "apply-tap for device: %s", current_input_config->identifier);
+	input_cmd_apply(new_config);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
+static struct cmd_results *cmd_input(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "input", EXPECTED_AT_LEAST, 2))) {
+		return error;
+	}
+
+	if (config->reading && strcmp("{", argv[1]) == 0) {
+		current_input_config = new_input_config(argv[0]);
+		sway_log(L_DEBUG, "entering input block: %s", current_input_config->identifier);
+		return cmd_results_new(CMD_BLOCK_INPUT, NULL, NULL);
+	}
+
+	if (argc > 2) {
+		int argc_new = argc-2;
+		char **argv_new = argv+2;
+
+		struct cmd_results *res;
+		current_input_config = new_input_config(argv[0]);
+		if (strcasecmp("click_method", argv[1]) == 0) {
+			res = input_cmd_click_method(argc_new, argv_new);
+		} else if (strcasecmp("drag_lock", argv[1]) == 0) {
+			res = input_cmd_drag_lock(argc_new, argv_new);
+		} else if (strcasecmp("dwt", argv[1]) == 0) {
+			res = input_cmd_dwt(argc_new, argv_new);
+		} else if (strcasecmp("events", argv[1]) == 0) {
+			res = input_cmd_events(argc_new, argv_new);
+		} else if (strcasecmp("middle_emulation", argv[1]) == 0) {
+			res = input_cmd_middle_emulation(argc_new, argv_new);
+		} else if (strcasecmp("natural_scroll", argv[1]) == 0) {
+			res = input_cmd_natural_scroll(argc_new, argv_new);
+		} else if (strcasecmp("pointer_accel", argv[1]) == 0) {
+			res = input_cmd_pointer_accel(argc_new, argv_new);
+		} else if (strcasecmp("scroll_method", argv[1]) == 0) {
+			res = input_cmd_scroll_method(argc_new, argv_new);
+		} else if (strcasecmp("tap", argv[1]) == 0) {
+			res = input_cmd_tap(argc_new, argv_new);
+		} else {
+			res = cmd_results_new(CMD_INVALID, "input <device>", "Unknonwn command %s", argv[1]);
+		}
+		current_input_config = NULL;
+		return res;
+	}
+
+	return cmd_results_new(CMD_BLOCK_INPUT, NULL, NULL);
+}
+
 static struct cmd_results *cmd_output(int argc, char **argv) {
 	struct cmd_results *error = NULL;
 	if ((error = checkarg(argc, "output", EXPECTED_AT_LEAST, 1))) {
@@ -1683,6 +1976,7 @@ static struct cmd_handler handlers[] = {
 	{ "for_window", cmd_for_window },
 	{ "fullscreen", cmd_fullscreen },
 	{ "gaps", cmd_gaps },
+	{ "input", cmd_input },
 	{ "kill", cmd_kill },
 	{ "layout", cmd_layout },
 	{ "log_colors", cmd_log_colors },
@@ -2422,6 +2716,18 @@ static struct cmd_results *bar_colors_cmd_urgent_workspace(int argc, char **argv
 	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }
 
+static struct cmd_handler input_handlers[] = {
+	{ "click_method", input_cmd_click_method },
+	{ "drag_lock", input_cmd_drag_lock },
+	{ "dwt", input_cmd_dwt },
+	{ "events", input_cmd_events },
+	{ "middle_emulation", input_cmd_middle_emulation },
+	{ "natural_scroll", input_cmd_natural_scroll },
+	{ "pointer_accel", input_cmd_pointer_accel },
+	{ "scroll_method", input_cmd_scroll_method },
+	{ "tap", input_cmd_tap },
+};
+
 static struct cmd_handler bar_colors_handlers[] = {
 	{ "active_workspace", bar_colors_cmd_active_workspace },
 	{ "background", bar_colors_cmd_background },
@@ -2442,6 +2748,7 @@ static int handler_compare(const void *_a, const void *_b) {
 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);
 	if (block == CMD_BLOCK_BAR) {
 		res = bsearch(&d, bar_handlers,
 			sizeof(bar_handlers) / sizeof(struct cmd_handler),
@@ -2450,6 +2757,11 @@ static struct cmd_handler *find_handler(char *line, enum cmd_status block) {
 		res = bsearch(&d, bar_colors_handlers,
 			sizeof(bar_colors_handlers) / sizeof(struct cmd_handler),
 			sizeof(struct cmd_handler), handler_compare);
+	} else if (block == CMD_BLOCK_INPUT) {
+		sway_log(L_DEBUG, "lookng at input handlers");
+		res = bsearch(&d, input_handlers,
+			sizeof(input_handlers) / sizeof(struct cmd_handler),
+			sizeof(struct cmd_handler), handler_compare);
 	} else {
 		res = bsearch(&d, handlers,
 			sizeof(handlers) / sizeof(struct cmd_handler),

sway/config.c

@@ -6,6 +6,9 @@
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <signal.h>
+#include <libinput.h>
+#include <limits.h>
+#include <float.h>
 #include "wayland-desktop-shell-server-protocol.h"
 #include "readline.h"
 #include "stringop.h"
@@ -16,6 +19,7 @@
 #include "layout.h"
 #include "input_state.h"
 #include "criteria.h"
+#include "input.h"
 
 struct sway_config *config = NULL;
 
@@ -59,6 +63,11 @@ static void free_bar(struct bar_config *bar) {
 	free(bar);
 }
 
+void free_input_config(struct input_config *ic) {
+	free(ic->identifier);
+	free(ic);
+}
+
 void free_output_config(struct output_config *oc) {
 	free(oc->name);
 	free(oc);
@@ -99,6 +108,11 @@ static void free_config(struct sway_config *config) {
 	}
 	list_free(config->criteria);
 
+	for (i = 0; i < config->input_configs->length; ++i) {
+		free_input_config(config->input_configs->items[i]);
+	}
+	list_free(config->input_configs);
+
 	for (i = 0; i < config->output_configs->length; ++i) {
 		free_output_config(config->output_configs->items[i]);
 	}
@@ -119,6 +133,7 @@ static void config_defaults(struct sway_config *config) {
 	config->bars = create_list();
 	config->workspace_outputs = create_list();
 	config->criteria = create_list();
+	config->input_configs = create_list();
 	config->output_configs = create_list();
 
 	config->cmd_queue = create_list();
@@ -294,6 +309,14 @@ bool read_config(FILE *file, bool is_active) {
 			}
 			break;
 
+		case CMD_BLOCK_INPUT:
+			if (block == CMD_BLOCK_END) {
+				block = CMD_BLOCK_INPUT;
+			} else {
+				sway_log(L_ERROR, "Invalid block '%s'", line);
+			}
+			break;
+
 		case CMD_BLOCK_BAR:
 			if (block == CMD_BLOCK_END) {
 				block = CMD_BLOCK_BAR;
@@ -318,6 +341,12 @@ bool read_config(FILE *file, bool is_active) {
 				block = CMD_BLOCK_END;
 				break;
 
+			case CMD_BLOCK_INPUT:
+				sway_log(L_DEBUG, "End of input block");
+				current_input_config = NULL;
+				block = CMD_BLOCK_END;
+				break;
+
 			case CMD_BLOCK_BAR:
 				sway_log(L_DEBUG, "End of bar block");
 				config->current_bar = NULL;
@@ -353,6 +382,12 @@ bool read_config(FILE *file, bool is_active) {
 	return success;
 }
 
+int input_identifier_cmp(const void *item, const void *data) {
+	const struct input_config *ic = item;
+	const char *identifier = data;
+	return strcmp(ic->identifier, identifier);
+}
+
 int output_name_cmp(const void *item, const void *data) {
 	const struct output_config *output = item;
 	const char *name = data;
@@ -360,6 +395,42 @@ int output_name_cmp(const void *item, const void *data) {
 	return strcmp(output->name, name);
 }
 
+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->click_method != INT_MIN) {
+		dst->click_method = src->click_method;
+	}
+	if (src->drag_lock != INT_MIN) {
+		dst->drag_lock = src->drag_lock;
+	}
+	if (src->dwt != INT_MIN) {
+		dst->dwt = src->dwt;
+	}
+	if (src->middle_emulation != INT_MIN) {
+		dst->middle_emulation = src->middle_emulation;
+	}
+	if (src->natural_scroll != INT_MIN) {
+		dst->natural_scroll = src->natural_scroll;
+	}
+	if (src->pointer_accel != FLT_MIN) {
+		dst->pointer_accel = src->pointer_accel;
+	}
+	if (src->scroll_method != INT_MIN) {
+		dst->scroll_method = src->scroll_method;
+	}
+	if (src->send_events != INT_MIN) {
+		dst->send_events = src->send_events;
+	}
+	if (src->tap != INT_MIN) {
+		dst->tap = src->tap;
+	}
+}
+
 void merge_output_config(struct output_config *dst, struct output_config *src) {
 	if (src->name) {
 		if (dst->name) {
@@ -508,6 +579,51 @@ void load_swaybars(swayc_t *output, int output_idx) {
 	list_free(bars);
 }
 
+void apply_input_config(struct input_config *ic, struct libinput_device *dev) {
+	if (ic) {
+		sway_log(L_DEBUG,
+			"apply_input_config(%s)",
+			ic->identifier);
+	}
+
+	if (ic && ic->click_method != INT_MIN) {
+		sway_log(L_DEBUG, "apply_input_config(%s) click_set_method(%d)", ic->identifier, ic->click_method);
+		libinput_device_config_click_set_method(dev, ic->click_method);
+	}
+	if (ic && ic->drag_lock != INT_MIN) {
+		sway_log(L_DEBUG, "apply_input_config(%s) tap_set_drag_lock_enabled(%d)", ic->identifier, ic->click_method);
+		libinput_device_config_tap_set_drag_lock_enabled(dev, ic->drag_lock);
+	}
+	if (ic && ic->dwt != INT_MIN) {
+		sway_log(L_DEBUG, "apply_input_config(%s) dwt_set_enabled(%d)", ic->identifier, ic->dwt);
+		libinput_device_config_dwt_set_enabled(dev, ic->dwt);
+	}
+	if (ic && ic->middle_emulation != INT_MIN) {
+		sway_log(L_DEBUG, "apply_input_config(%s) middle_emulation_set_enabled(%d)", ic->identifier, ic->middle_emulation);
+		libinput_device_config_middle_emulation_set_enabled(dev, ic->middle_emulation);
+	}
+	if (ic && ic->natural_scroll != INT_MIN) {
+		sway_log(L_DEBUG, "apply_input_config(%s) natural_scroll_set_enabled(%d)", ic->identifier, ic->natural_scroll);
+		libinput_device_config_scroll_set_natural_scroll_enabled(dev, ic->natural_scroll);
+	}
+	if (ic && ic->pointer_accel != FLT_MIN) {
+		sway_log(L_DEBUG, "apply_input_config(%s) accel_set_speed(%f)", ic->identifier, ic->pointer_accel);
+		libinput_device_config_accel_set_speed(dev, ic->pointer_accel);
+	}
+	if (ic && ic->scroll_method != INT_MIN) {
+		sway_log(L_DEBUG, "apply_input_config(%s) scroll_set_method(%d)", ic->identifier, ic->scroll_method);
+		libinput_device_config_scroll_set_method(dev, ic->scroll_method);
+	}
+	if (ic && ic->send_events != INT_MIN) {
+		sway_log(L_DEBUG, "apply_input_config(%s) send_events_set_mode(%d)", ic->identifier, ic->send_events);
+		libinput_device_config_send_events_set_mode(dev, ic->send_events);
+	}
+	if (ic && ic->tap != INT_MIN) {
+		sway_log(L_DEBUG, "apply_input_config(%s) tap_set_enabled(%d)", ic->identifier, ic->tap);
+		libinput_device_config_tap_set_enabled(dev, ic->tap);
+	}
+}
+
 void apply_output_config(struct output_config *oc, swayc_t *output) {
 	if (oc && oc->width > 0 && oc->height > 0) {
 		output->width = oc->width;

sway/handlers.c

@@ -1,6 +1,7 @@
 #include <xkbcommon/xkbcommon.h>
 #include <stdlib.h>
 #include <stdbool.h>
+#include <libinput.h>
 #include <math.h>
 #include <wlc/wlc.h>
 #include <wlc/wlc-wayland.h>
@@ -21,6 +22,8 @@
 #include "extensions.h"
 #include "criteria.h"
 #include "ipc-server.h"
+#include "list.h"
+#include "input.h"
 
 // Event should be sent to client
 #define EVENT_PASSTHROUGH false
@@ -30,6 +33,37 @@
 
 /* Handles */
 
+static bool handle_input_created(struct libinput_device *device) {
+	const char *identifier = libinput_dev_unique_id(device);
+	sway_log(L_INFO, "Found input device (%s)", identifier);
+
+	list_add(input_devices, device);
+
+	struct input_config *ic = NULL;
+	int i;
+	for (i = 0; i < config->input_configs->length; ++i) {
+		struct input_config *cur = config->input_configs->items[i];
+		if (strcasecmp(identifier, cur->identifier) == 0) {
+			ic = cur;
+			break;
+		}
+	}
+
+	apply_input_config(ic, device);
+	return true;
+}
+
+static void handle_input_destroyed(struct libinput_device *device) {
+	int i;
+	list_t *list = input_devices;
+	for (i = 0; i < list->length; ++i) {
+		if(((struct libinput_device *)list->items[i]) == device) {
+			list_del(list, i);
+			break;
+		}
+	}
+}
+
 static bool handle_output_created(wlc_handle output) {
 	swayc_t *op = new_output(output);
 
@@ -660,5 +694,9 @@ struct wlc_interface interface = {
 	},
 	.compositor = {
 		.ready = handle_wlc_ready
+	},
+	.input = {
+		.created = handle_input_created,
+		.destroyed = handle_input_destroyed
 	}
 };

sway/input.c

@@ -0,0 +1,54 @@
+#include <ctype.h>
+#include <float.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <libinput.h>
+#include "config.h"
+#include "input.h"
+#include "list.h"
+#include "log.h"
+
+struct input_config *new_input_config(const char* identifier) {
+	struct input_config *input = calloc(1, sizeof(struct input_config));
+	sway_log(L_DEBUG, "new_input_config(%s)", identifier);
+	input->identifier = strdup(identifier);
+
+	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->pointer_accel = FLT_MIN;
+	input->scroll_method = 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);
+
+	const char *fmt = "%d:%d:%s";
+	snprintf(identifier, len, fmt, vendor, product, name); 
+	free(name);
+	return identifier;
+}
+
+list_t *input_devices = NULL;
+struct input_config *current_input_config = NULL;

sway/ipc-server.c

@@ -13,6 +13,7 @@
 #include <ctype.h>
 #include <json-c/json.h>
 #include <list.h>
+#include <libinput.h>
 #include "ipc-server.h"
 #include "log.h"
 #include "config.h"
@@ -20,6 +21,7 @@
 #include "list.h"
 #include "stringop.h"
 #include "util.h"
+#include "input.h"
 
 static int ipc_socket = -1;
 static struct wlc_event_source *ipc_event_source =  NULL;
@@ -325,6 +327,24 @@ void ipc_client_handle_command(struct ipc_client *client) {
 		json_object_put(workspaces); // free
 		break;
 	}
+	case IPC_GET_INPUTS:
+	{
+		json_object *inputs = json_object_new_array();
+		if (input_devices) {
+			for(int i=0; i<input_devices->length; i++) {
+				struct libinput_device *device = input_devices->items[i];
+				char* identifier = libinput_dev_unique_id(device);
+				json_object *device_object = json_object_new_object();
+				json_object_object_add(device_object, "identifier", json_object_new_string(identifier));
+				json_object_array_add(inputs, device_object);
+				free(identifier);
+			}
+		}
+		const char *json_string = json_object_to_json_string(inputs);
+		ipc_send_reply(client, json_string, (uint32_t) strlen(json_string));
+		json_object_put(inputs);
+		break;
+	}
 	case IPC_GET_OUTPUTS:
 	{
 		json_object *outputs = json_object_new_array();

sway/main.c

@@ -17,6 +17,7 @@
 #include "handlers.h"
 #include "ipc-client.h"
 #include "ipc-server.h"
+#include "input.h"
 #include "sway.h"
 
 static bool terminate_request = false;
@@ -173,6 +174,8 @@ int main(int argc, char **argv) {
 	wlc_log_set_handler(wlc_log_handler);
 	detect_proprietary();
 
+	input_devices = create_list();
+
 	/* Changing code earlier than this point requires detailed review */
 	/* (That code runs as root on systems without logind, and wlc_init drops to
 	 * another user.) */
@@ -208,6 +211,10 @@ int main(int argc, char **argv) {
 		wlc_run();
 	}
 
+	if (input_devices) {
+		free(input_devices);
+	}
+
 	ipc_terminate();
 
 	return 0;

sway/sway-input.5.txt

@@ -0,0 +1,46 @@
+/////
+vim:set ts=4 sw=4 tw=82 noet:
+/////
+sway (5)
+========
+
+Name
+----
+sway - input configuration file and commands
+
+Description
+-----------
+
+Sway allows for configuration of libinput dveices.
+
+
+Commands
+--------
+
+**input** <identifier> click_method <none|button_areas|clickfinger>:
+	Changes the click method for the specified device.
+
+**input** <identifier> drag_lock <enabled|disabled>:
+	Enables or disables drag lock for specified input device.
+
+**input** <identifier> dwt <enabled|disabled>:
+	Enables or disables disable-while-typing for the specified input device.
+
+**input** <identifier> events <enable|disabled>:
+	Enables or disables send_events for specified input device.
+	(Disabling  send_events disables the input device)
+
+**input** <identifier> middle_emulation <enabled|disabled>:
+	Enables or disables middle click emulation.
+
+**input** <identifier> natural_scroll <enabled|disabled>:
+	Enables or disables natural scrolling for the specified input device.
+
+**input** <identifier> pointer_accel <[-1,1]>:
+	Changes the pointer acceleration for the specified input device.
+
+**input** <identifier> scroll_method <none|two_finger|edge|on_button_down>:
+	Changes the scroll method for the specified input device.
+
+**input** <identifier> tap <enabled|disabled>:
+	Enables or disables tap for specified input device.

swaymsg/main.c

@@ -87,6 +87,8 @@ int main(int argc, char **argv) {
 		type = IPC_COMMAND;
 	} else if (strcasecmp(cmdtype, "get_workspaces") == 0) {
 		type = IPC_GET_WORKSPACES;
+	} else if (strcasecmp(cmdtype, "get_inputs") == 0) {
+		type = IPC_GET_INPUTS;
 	} else if (strcasecmp(cmdtype, "get_outputs") == 0) {
 		type = IPC_GET_OUTPUTS;
 	} else if (strcasecmp(cmdtype, "get_tree") == 0) {

swaymsg/swaymsg.1.txt

@@ -43,6 +43,9 @@ IPC Message Types
 *get_workspaces*::
 	Gets a JSON-encoded list of workspaces and their status.
 
+*get_inputs*::
+	Gets a JSON-encoded list of current inputs.
+
 *get_outputs*::
 	Gets a JSON-encoded list of current outputs.