update readme

Makefile

@@ -2,7 +2,9 @@ CC = 9c
 LD = 9l
 DBUS_CFLAGS := $(shell pkg-config --cflags dbus-1)
 DBUS_LIBS := $(shell pkg-config --libs dbus-1)
-CFLAGS = -Wall -Wextra -O2 -g $(DBUS_CFLAGS)
+WL_CFLAGS := $(shell pkg-config --cflags wayland-client xkbcommon)
+WL_LIBS := $(shell pkg-config --libs wayland-client xkbcommon)
+CFLAGS = -Wall -Wextra -O2 -g $(DBUS_CFLAGS) $(WL_CFLAGS)
 PROG = strans
 
 SRCS = $(wildcard *.c)
@@ -11,7 +13,7 @@ OBJS = $(SRCS:.c=.o)
 all: $(PROG) xim bench
 
 $(PROG): $(OBJS)
-	$(LD) -o $@ $(OBJS) -lthread -lString -lbio -lxcb -lm $(DBUS_LIBS)
+	$(LD) -o $@ $(OBJS) -lthread -lString -lbio -lxcb -lm $(DBUS_LIBS) $(WL_LIBS)
 
 $(OBJS): dat.h fn.h ipc.h
 

README.md

@@ -1,6 +1,6 @@
 # strans
 
-An input method daemon for CJK text entry on X11.
+An input method daemon for CJK text entry on X11 and Wayland.
 
 Inspired by 9front's ktrans. Threads communicate via CSP channels.
 
@@ -8,6 +8,7 @@ Inspired by 9front's ktrans. Threads communicate via CSP channels.
 
 - plan9port
 - dbus-1
+- wayland-client, libxkbcommon (for Wayland support)
 - gtk+-3.0 (optional, for GTK IM module)
 
 ## Build
@@ -33,7 +34,12 @@ For IBus apps (kitty, foot, etc.):
 
 	GLFW_IM_MODULE=ibus kitty
 
-Strans itself is the IBus endpoint; no ibus-daemon or fcitx5 needed.
+For Wayland apps (text-input-v3 clients on wlroots compositors):
+
+	# nothing to set; the compositor relays text-input-v3 to strans
+
+Strans itself is the IBus endpoint and the Wayland input-method-v2 client;
+no ibus-daemon or fcitx5 needed. Start strans after the compositor.
 
 ## Usage
 
@@ -51,13 +57,14 @@ Tab or Enter to commit.
 
 ## Architecture
 
-Four threads communicate via CSP channels:
+Threads communicate via CSP channels:
 
 - [imthread](strans.c#L271): keystroke processing, transliteration
 - [dictthread](dict.c#L38): dictionary lookup
 - [drawthread](win.c#L133): preedit window rendering
 - [srvthread](srv.c#L42): IPC via unix socket
 - [ibusthread](ibus.c): IBus D-Bus endpoint for GLFW/kitty
+- [waylandthread](wayland.c): Wayland input-method-v2 + virtual-keyboard-v1
 
 Adapters (strans-xim, im-strans.so) bridge X11/GTK events.
 
@@ -67,9 +74,18 @@ Adapters (strans-xim, im-strans.so) bridge X11/GTK events.
 	dict.c      dictionary queries
 	win.c       xcb window management
 	font.c      truetype rendering (stb_truetype)
+	wayland.c   wayland input-method-v2 adapter
 	map/        transliteration tables
 	font/       bundled CJK fonts
 
+	input-method-unstable-v2-*.{c,h}   wayland-scanner output, vendored
+	virtual-keyboard-unstable-v1-*.{c,h}
+
+The two Wayland protocols (input-method-v2, virtual-keyboard-v1) are
+wlroots-only and not in the upstream wayland-protocols package, so the
+generated client code is vendored. Regenerate with wayland-scanner if
+the XML upstream ever changes (it hasn't in years).
+
 ## References
 
 - https://git.9front.org/plan9front/plan9front/HEAD/info.html

dat.h

@@ -128,6 +128,7 @@ struct Keyreq
 	int	fd;
 	u32int	ks;
 	u32int	mod;
+	int	want;	/* nonzero: append preedit after commit */
 };
 
 typedef struct Dictreq Dictreq;

fn.h

@@ -34,6 +34,7 @@ void	dictsend(Im*, Str*);
 
 void	srvthread(void*);
 void	ibusthread(void*);
+void	waylandthread(void*);
 
 void*	emalloc(ulong);
 void*	erealloc(void*, ulong);

ibus.c

@@ -200,47 +200,54 @@ mget(u32int state)
 	return m;
 }
 
-static int
+static void
-sendkey(u32int ks, u32int mod, char *out, int sz, int *eaten)
+sendkey(u32int ks, u32int mod, char *com, int csz, char *pre, int psz,
+	int *eaten)
 {
 	Keyreq kr;
 	int p[2];
 	uchar hdr[2];
+	uchar pl;
 	int n;
 
 	*eaten = 0;
-	out[0] = '\0';
+	com[0] = '\0';
+	pre[0] = '\0';
 	if(pipe(p) < 0)
-		return 0;
+		return;
 	kr.fd = p[1];
 	kr.ks = ks;
 	kr.mod = mod;
+	kr.want = 1;
 	chansend(keyc, &kr);
-	if(read(p[0], hdr, 2) != 2){
+	if(read(p[0], hdr, 2) != 2)
-		close(p[0]);
+		goto out;
-		close(p[1]);
-		return 0;
-	}
 	*eaten = hdr[0];
 	n = hdr[1];
-	if(n > 0 && n < sz){
+	if(n > 0 && n < csz){
-		if(read(p[0], out, n) != n)
+		if(read(p[0], com, n) != n)
-			n = 0;
+			goto out;
-	}else
+		com[n] = '\0';
-		n = 0;
+	}
-	out[n] = '\0';
+	if(read(p[0], &pl, 1) != 1)
+		goto out;
+	if(pl > 0 && pl < psz){
+		if(read(p[0], pre, pl) != pl)
+			goto out;
+		pre[pl] = '\0';
+	}
+out:
 	close(p[0]);
 	close(p[1]);
-	return n;
 }
 
 static void
 sendreset(void)
 {
-	char buf[64];
+	char com[64], pre[256];
 	int eaten;
 
-	sendkey(Kesc, 0, buf, sizeof(buf), &eaten);
+	sendkey(Kesc, 0, com, sizeof(com), pre, sizeof(pre), &eaten);
 }
 
 static void
@@ -284,6 +291,28 @@ emitcommit(DBusConnection *c, const char *path, const char *text)
 	dbus_message_unref(sig);
 }
 
+static void
+emitpreedit(DBusConnection *c, const char *path, const char *text)
+{
+	DBusMessage *sig;
+	DBusMessageIter it;
+	dbus_uint32_t cursor;
+	dbus_bool_t visible;
+
+	sig = dbus_message_new_signal(path,
+		"org.freedesktop.IBus.InputContext", "UpdatePreeditText");
+	if(sig == nil)
+		return;
+	dbus_message_iter_init_append(sig, &it);
+	appendibustext(&it, text);
+	cursor = utflen(text);
+	visible = text[0] != '\0' ? TRUE : FALSE;
+	dbus_message_iter_append_basic(&it, DBUS_TYPE_UINT32, &cursor);
+	dbus_message_iter_append_basic(&it, DBUS_TYPE_BOOLEAN, &visible);
+	dbus_connection_send(c, sig, nil);
+	dbus_message_unref(sig);
+}
+
 static DBusHandlerResult
 handlehello(DBusConnection *c, DBusMessage *m)
 {
@@ -324,8 +353,8 @@ handlekey(DBusConnection *c, DBusMessage *m)
 	DBusMessage *r;
 	DBusError err;
 	dbus_uint32_t sym, code, state;
-	char commit[256];
+	char commit[256], preedit[256];
-	int eaten, n;
+	int eaten;
 	dbus_bool_t b;
 	u32int ks, mod;
 
@@ -349,9 +378,11 @@ handlekey(DBusConnection *c, DBusMessage *m)
 	}
 	ks = kget(sym);
 	mod = mget(state);
-	n = sendkey(ks, mod, commit, sizeof(commit), &eaten);
+	sendkey(ks, mod, commit, sizeof(commit), preedit, sizeof(preedit),
-	if(n > 0)
+		&eaten);
+	if(commit[0] != '\0')
 		emitcommit(c, dbus_message_get_path(m), commit);
+	emitpreedit(c, dbus_message_get_path(m), preedit);
 	r = dbus_message_new_method_return(m);
 	b = eaten ? TRUE : FALSE;
 	dbus_message_append_args(r, DBUS_TYPE_BOOLEAN, &b, DBUS_TYPE_INVALID);
@@ -375,6 +406,7 @@ static DBusHandlerResult
 handlereset(DBusConnection *c, DBusMessage *m)
 {
 	sendreset();
+	emitpreedit(c, dbus_message_get_path(m), "");
 	return handlenoop(c, m);
 }
 
@@ -405,6 +437,8 @@ static const char introspectxml[] =
 "<arg direction=\"in\" type=\"i\"/><arg direction=\"in\" type=\"i\"/></method>\n"
 "  <method name=\"SetEngine\"><arg direction=\"in\" type=\"s\"/></method>\n"
 "  <signal name=\"CommitText\"><arg type=\"v\"/></signal>\n"
+"  <signal name=\"UpdatePreeditText\">"
+"<arg type=\"v\"/><arg type=\"u\"/><arg type=\"b\"/></signal>\n"
 " </interface>\n"
 "</node>\n";
 

input-method-unstable-v2-client-protocol.h

@@ -0,0 +1,955 @@
+/* Generated by wayland-scanner 1.21.0 */
+
+#ifndef INPUT_METHOD_UNSTABLE_V2_CLIENT_PROTOCOL_H
+#define INPUT_METHOD_UNSTABLE_V2_CLIENT_PROTOCOL_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include "wayland-client.h"
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @page page_input_method_unstable_v2 The input_method_unstable_v2 protocol
+ * Protocol for creating input methods
+ *
+ * @section page_desc_input_method_unstable_v2 Description
+ *
+ * This protocol allows applications to act as input methods for compositors.
+ *
+ * An input method context is used to manage the state of the input method.
+ *
+ * Text strings are UTF-8 encoded, their indices and lengths are in bytes.
+ *
+ * This document adheres to the RFC 2119 when using words like "must",
+ * "should", "may", etc.
+ *
+ * Warning! The protocol described in this file is experimental and
+ * backward incompatible changes may be made. Backward compatible changes
+ * may be added together with the corresponding interface version bump.
+ * Backward incompatible changes are done by bumping the version number in
+ * the protocol and interface names and resetting the interface version.
+ * Once the protocol is to be declared stable, the 'z' prefix and the
+ * version number in the protocol and interface names are removed and the
+ * interface version number is reset.
+ *
+ * @section page_ifaces_input_method_unstable_v2 Interfaces
+ * - @subpage page_iface_zwp_input_method_v2 - input method
+ * - @subpage page_iface_zwp_input_popup_surface_v2 - popup surface
+ * - @subpage page_iface_zwp_input_method_keyboard_grab_v2 - keyboard grab
+ * - @subpage page_iface_zwp_input_method_manager_v2 - input method manager
+ * @section page_copyright_input_method_unstable_v2 Copyright
+ * <pre>
+ *
+ * Copyright © 2008-2011 Kristian Høgsberg
+ * Copyright © 2010-2011 Intel Corporation
+ * Copyright © 2012-2013 Collabora, Ltd.
+ * Copyright © 2012, 2013 Intel Corporation
+ * Copyright © 2015, 2016 Jan Arne Petersen
+ * Copyright © 2017, 2018 Red Hat, Inc.
+ * Copyright © 2018       Purism SPC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ * </pre>
+ */
+struct wl_seat;
+struct wl_surface;
+struct zwp_input_method_keyboard_grab_v2;
+struct zwp_input_method_manager_v2;
+struct zwp_input_method_v2;
+struct zwp_input_popup_surface_v2;
+
+#ifndef ZWP_INPUT_METHOD_V2_INTERFACE
+#define ZWP_INPUT_METHOD_V2_INTERFACE
+/**
+ * @page page_iface_zwp_input_method_v2 zwp_input_method_v2
+ * @section page_iface_zwp_input_method_v2_desc Description
+ *
+ * An input method object allows for clients to compose text.
+ *
+ * The objects connects the client to a text input in an application, and
+ * lets the client to serve as an input method for a seat.
+ *
+ * The zwp_input_method_v2 object can occupy two distinct states: active and
+ * inactive. In the active state, the object is associated to and
+ * communicates with a text input. In the inactive state, there is no
+ * associated text input, and the only communication is with the compositor.
+ * Initially, the input method is in the inactive state.
+ *
+ * Requests issued in the inactive state must be accepted by the compositor.
+ * Because of the serial mechanism, and the state reset on activate event,
+ * they will not have any effect on the state of the next text input.
+ *
+ * There must be no more than one input method object per seat.
+ * @section page_iface_zwp_input_method_v2_api API
+ * See @ref iface_zwp_input_method_v2.
+ */
+/**
+ * @defgroup iface_zwp_input_method_v2 The zwp_input_method_v2 interface
+ *
+ * An input method object allows for clients to compose text.
+ *
+ * The objects connects the client to a text input in an application, and
+ * lets the client to serve as an input method for a seat.
+ *
+ * The zwp_input_method_v2 object can occupy two distinct states: active and
+ * inactive. In the active state, the object is associated to and
+ * communicates with a text input. In the inactive state, there is no
+ * associated text input, and the only communication is with the compositor.
+ * Initially, the input method is in the inactive state.
+ *
+ * Requests issued in the inactive state must be accepted by the compositor.
+ * Because of the serial mechanism, and the state reset on activate event,
+ * they will not have any effect on the state of the next text input.
+ *
+ * There must be no more than one input method object per seat.
+ */
+extern const struct wl_interface zwp_input_method_v2_interface;
+#endif
+#ifndef ZWP_INPUT_POPUP_SURFACE_V2_INTERFACE
+#define ZWP_INPUT_POPUP_SURFACE_V2_INTERFACE
+/**
+ * @page page_iface_zwp_input_popup_surface_v2 zwp_input_popup_surface_v2
+ * @section page_iface_zwp_input_popup_surface_v2_desc Description
+ *
+ * This interface marks a surface as a popup for interacting with an input
+ * method.
+ *
+ * The compositor should place it near the active text input area. It must
+ * be visible if and only if the input method is in the active state.
+ *
+ * The client must not destroy the underlying wl_surface while the
+ * zwp_input_popup_surface_v2 object exists.
+ * @section page_iface_zwp_input_popup_surface_v2_api API
+ * See @ref iface_zwp_input_popup_surface_v2.
+ */
+/**
+ * @defgroup iface_zwp_input_popup_surface_v2 The zwp_input_popup_surface_v2 interface
+ *
+ * This interface marks a surface as a popup for interacting with an input
+ * method.
+ *
+ * The compositor should place it near the active text input area. It must
+ * be visible if and only if the input method is in the active state.
+ *
+ * The client must not destroy the underlying wl_surface while the
+ * zwp_input_popup_surface_v2 object exists.
+ */
+extern const struct wl_interface zwp_input_popup_surface_v2_interface;
+#endif
+#ifndef ZWP_INPUT_METHOD_KEYBOARD_GRAB_V2_INTERFACE
+#define ZWP_INPUT_METHOD_KEYBOARD_GRAB_V2_INTERFACE
+/**
+ * @page page_iface_zwp_input_method_keyboard_grab_v2 zwp_input_method_keyboard_grab_v2
+ * @section page_iface_zwp_input_method_keyboard_grab_v2_desc Description
+ *
+ * The zwp_input_method_keyboard_grab_v2 interface represents an exclusive
+ * grab of the wl_keyboard interface associated with the seat.
+ * @section page_iface_zwp_input_method_keyboard_grab_v2_api API
+ * See @ref iface_zwp_input_method_keyboard_grab_v2.
+ */
+/**
+ * @defgroup iface_zwp_input_method_keyboard_grab_v2 The zwp_input_method_keyboard_grab_v2 interface
+ *
+ * The zwp_input_method_keyboard_grab_v2 interface represents an exclusive
+ * grab of the wl_keyboard interface associated with the seat.
+ */
+extern const struct wl_interface zwp_input_method_keyboard_grab_v2_interface;
+#endif
+#ifndef ZWP_INPUT_METHOD_MANAGER_V2_INTERFACE
+#define ZWP_INPUT_METHOD_MANAGER_V2_INTERFACE
+/**
+ * @page page_iface_zwp_input_method_manager_v2 zwp_input_method_manager_v2
+ * @section page_iface_zwp_input_method_manager_v2_desc Description
+ *
+ * The input method manager allows the client to become the input method on
+ * a chosen seat.
+ *
+ * No more than one input method must be associated with any seat at any
+ * given time.
+ * @section page_iface_zwp_input_method_manager_v2_api API
+ * See @ref iface_zwp_input_method_manager_v2.
+ */
+/**
+ * @defgroup iface_zwp_input_method_manager_v2 The zwp_input_method_manager_v2 interface
+ *
+ * The input method manager allows the client to become the input method on
+ * a chosen seat.
+ *
+ * No more than one input method must be associated with any seat at any
+ * given time.
+ */
+extern const struct wl_interface zwp_input_method_manager_v2_interface;
+#endif
+
+#ifndef ZWP_INPUT_METHOD_V2_ERROR_ENUM
+#define ZWP_INPUT_METHOD_V2_ERROR_ENUM
+enum zwp_input_method_v2_error {
+	/**
+	 * wl_surface has another role
+	 */
+	ZWP_INPUT_METHOD_V2_ERROR_ROLE = 0,
+};
+#endif /* ZWP_INPUT_METHOD_V2_ERROR_ENUM */
+
+/**
+ * @ingroup iface_zwp_input_method_v2
+ * @struct zwp_input_method_v2_listener
+ */
+struct zwp_input_method_v2_listener {
+	/**
+	 * input method has been requested
+	 *
+	 * Notification that a text input focused on this seat requested
+	 * the input method to be activated.
+	 *
+	 * This event serves the purpose of providing the compositor with
+	 * an active input method.
+	 *
+	 * This event resets all state associated with previous
+	 * surrounding_text, text_change_cause, and content_type events, as
+	 * well as the state associated with set_preedit_string,
+	 * commit_string, and delete_surrounding_text requests. In
+	 * addition, it marks the zwp_input_method_v2 object as active, and
+	 * makes any existing zwp_input_popup_surface_v2 objects visible.
+	 *
+	 * The surrounding_text, and content_type events must follow before
+	 * the next done event if the text input supports the respective
+	 * functionality.
+	 *
+	 * State set with this event is double-buffered. It will get
+	 * applied on the next zwp_input_method_v2.done event, and stay
+	 * valid until changed.
+	 */
+	void (*activate)(void *data,
+			 struct zwp_input_method_v2 *zwp_input_method_v2);
+	/**
+	 * deactivate event
+	 *
+	 * Notification that no focused text input currently needs an
+	 * active input method on this seat.
+	 *
+	 * This event marks the zwp_input_method_v2 object as inactive. The
+	 * compositor must make all existing zwp_input_popup_surface_v2
+	 * objects invisible until the next activate event.
+	 *
+	 * State set with this event is double-buffered. It will get
+	 * applied on the next zwp_input_method_v2.done event, and stay
+	 * valid until changed.
+	 */
+	void (*deactivate)(void *data,
+			   struct zwp_input_method_v2 *zwp_input_method_v2);
+	/**
+	 * surrounding text event
+	 *
+	 * Updates the surrounding plain text around the cursor,
+	 * excluding the preedit text.
+	 *
+	 * If any preedit text is present, it is replaced with the cursor
+	 * for the purpose of this event.
+	 *
+	 * The argument text is a buffer containing the surrounding text,
+	 * and must include the cursor position, and the complete
+	 * selection. It should contain additional characters before and
+	 * after these. There is a maximum length of wayland messages, so
+	 * text can not be longer than 4000 bytes.
+	 *
+	 * cursor is the byte offset of the cursor within the text buffer.
+	 *
+	 * anchor is the byte offset of the selection anchor within the
+	 * text buffer. If there is no selected text, anchor must be the
+	 * same as cursor.
+	 *
+	 * If this event does not arrive before the first done event, the
+	 * input method may assume that the text input does not support
+	 * this functionality and ignore following surrounding_text events.
+	 *
+	 * Values set with this event are double-buffered. They will get
+	 * applied and set to initial values on the next
+	 * zwp_input_method_v2.done event.
+	 *
+	 * The initial state for affected fields is empty, meaning that the
+	 * text input does not support sending surrounding text. If the
+	 * empty values get applied, subsequent attempts to change them may
+	 * have no effect.
+	 */
+	void (*surrounding_text)(void *data,
+				 struct zwp_input_method_v2 *zwp_input_method_v2,
+				 const char *text,
+				 uint32_t cursor,
+				 uint32_t anchor);
+	/**
+	 * indicates the cause of surrounding text change
+	 *
+	 * Tells the input method why the text surrounding the cursor
+	 * changed.
+	 *
+	 * Whenever the client detects an external change in text, cursor,
+	 * or anchor position, it must issue this request to the
+	 * compositor. This request is intended to give the input method a
+	 * chance to update the preedit text in an appropriate way, e.g. by
+	 * removing it when the user starts typing with a keyboard.
+	 *
+	 * cause describes the source of the change.
+	 *
+	 * The value set with this event is double-buffered. It will get
+	 * applied and set to its initial value on the next
+	 * zwp_input_method_v2.done event.
+	 *
+	 * The initial value of cause is input_method.
+	 */
+	void (*text_change_cause)(void *data,
+				  struct zwp_input_method_v2 *zwp_input_method_v2,
+				  uint32_t cause);
+	/**
+	 * content purpose and hint
+	 *
+	 * Indicates the content type and hint for the current
+	 * zwp_input_method_v2 instance.
+	 *
+	 * Values set with this event are double-buffered. They will get
+	 * applied on the next zwp_input_method_v2.done event.
+	 *
+	 * The initial value for hint is none, and the initial value for
+	 * purpose is normal.
+	 */
+	void (*content_type)(void *data,
+			     struct zwp_input_method_v2 *zwp_input_method_v2,
+			     uint32_t hint,
+			     uint32_t purpose);
+	/**
+	 * apply state
+	 *
+	 * Atomically applies state changes recently sent to the client.
+	 *
+	 * The done event establishes and updates the state of the client,
+	 * and must be issued after any changes to apply them.
+	 *
+	 * Text input state (content purpose, content hint, surrounding
+	 * text, and change cause) is conceptually double-buffered within
+	 * an input method context.
+	 *
+	 * Events modify the pending state, as opposed to the current state
+	 * in use by the input method. A done event atomically applies all
+	 * pending state, replacing the current state. After done, the new
+	 * pending state is as documented for each related request.
+	 *
+	 * Events must be applied in the order of arrival.
+	 *
+	 * Neither current nor pending state are modified unless noted
+	 * otherwise.
+	 */
+	void (*done)(void *data,
+		     struct zwp_input_method_v2 *zwp_input_method_v2);
+	/**
+	 * input method unavailable
+	 *
+	 * The input method ceased to be available.
+	 *
+	 * The compositor must issue this event as the only event on the
+	 * object if there was another input_method object associated with
+	 * the same seat at the time of its creation.
+	 *
+	 * The compositor must issue this request when the object is no
+	 * longer usable, e.g. due to seat removal.
+	 *
+	 * The input method context becomes inert and should be destroyed
+	 * after deactivation is handled. Any further requests and events
+	 * except for the destroy request must be ignored.
+	 */
+	void (*unavailable)(void *data,
+			    struct zwp_input_method_v2 *zwp_input_method_v2);
+};
+
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+static inline int
+zwp_input_method_v2_add_listener(struct zwp_input_method_v2 *zwp_input_method_v2,
+				 const struct zwp_input_method_v2_listener *listener, void *data)
+{
+	return wl_proxy_add_listener((struct wl_proxy *) zwp_input_method_v2,
+				     (void (**)(void)) listener, data);
+}
+
+#define ZWP_INPUT_METHOD_V2_COMMIT_STRING 0
+#define ZWP_INPUT_METHOD_V2_SET_PREEDIT_STRING 1
+#define ZWP_INPUT_METHOD_V2_DELETE_SURROUNDING_TEXT 2
+#define ZWP_INPUT_METHOD_V2_COMMIT 3
+#define ZWP_INPUT_METHOD_V2_GET_INPUT_POPUP_SURFACE 4
+#define ZWP_INPUT_METHOD_V2_GRAB_KEYBOARD 5
+#define ZWP_INPUT_METHOD_V2_DESTROY 6
+
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_ACTIVATE_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_DEACTIVATE_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_SURROUNDING_TEXT_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_TEXT_CHANGE_CAUSE_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_CONTENT_TYPE_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_DONE_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_UNAVAILABLE_SINCE_VERSION 1
+
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_COMMIT_STRING_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_SET_PREEDIT_STRING_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_DELETE_SURROUNDING_TEXT_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_COMMIT_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_GET_INPUT_POPUP_SURFACE_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_GRAB_KEYBOARD_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_v2
+ */
+#define ZWP_INPUT_METHOD_V2_DESTROY_SINCE_VERSION 1
+
+/** @ingroup iface_zwp_input_method_v2 */
+static inline void
+zwp_input_method_v2_set_user_data(struct zwp_input_method_v2 *zwp_input_method_v2, void *user_data)
+{
+	wl_proxy_set_user_data((struct wl_proxy *) zwp_input_method_v2, user_data);
+}
+
+/** @ingroup iface_zwp_input_method_v2 */
+static inline void *
+zwp_input_method_v2_get_user_data(struct zwp_input_method_v2 *zwp_input_method_v2)
+{
+	return wl_proxy_get_user_data((struct wl_proxy *) zwp_input_method_v2);
+}
+
+static inline uint32_t
+zwp_input_method_v2_get_version(struct zwp_input_method_v2 *zwp_input_method_v2)
+{
+	return wl_proxy_get_version((struct wl_proxy *) zwp_input_method_v2);
+}
+
+/**
+ * @ingroup iface_zwp_input_method_v2
+ *
+ * Send the commit string text for insertion to the application.
+ *
+ * Inserts a string at current cursor position (see commit event
+ * sequence). The string to commit could be either just a single character
+ * after a key press or the result of some composing.
+ *
+ * The argument text is a buffer containing the string to insert. There is
+ * a maximum length of wayland messages, so text can not be longer than
+ * 4000 bytes.
+ *
+ * Values set with this event are double-buffered. They must be applied
+ * and reset to initial on the next zwp_text_input_v3.commit request.
+ *
+ * The initial value of text is an empty string.
+ */
+static inline void
+zwp_input_method_v2_commit_string(struct zwp_input_method_v2 *zwp_input_method_v2, const char *text)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_input_method_v2,
+			 ZWP_INPUT_METHOD_V2_COMMIT_STRING, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_input_method_v2), 0, text);
+}
+
+/**
+ * @ingroup iface_zwp_input_method_v2
+ *
+ * Send the pre-edit string text to the application text input.
+ *
+ * Place a new composing text (pre-edit) at the current cursor position.
+ * Any previously set composing text must be removed. Any previously
+ * existing selected text must be removed. The cursor is moved to a new
+ * position within the preedit string.
+ *
+ * The argument text is a buffer containing the preedit string. There is
+ * a maximum length of wayland messages, so text can not be longer than
+ * 4000 bytes.
+ *
+ * The arguments cursor_begin and cursor_end are counted in bytes relative
+ * to the beginning of the submitted string buffer. Cursor should be
+ * hidden by the text input when both are equal to -1.
+ *
+ * cursor_begin indicates the beginning of the cursor. cursor_end
+ * indicates the end of the cursor. It may be equal or different than
+ * cursor_begin.
+ *
+ * Values set with this event are double-buffered. They must be applied on
+ * the next zwp_input_method_v2.commit event.
+ *
+ * The initial value of text is an empty string. The initial value of
+ * cursor_begin, and cursor_end are both 0.
+ */
+static inline void
+zwp_input_method_v2_set_preedit_string(struct zwp_input_method_v2 *zwp_input_method_v2, const char *text, int32_t cursor_begin, int32_t cursor_end)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_input_method_v2,
+			 ZWP_INPUT_METHOD_V2_SET_PREEDIT_STRING, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_input_method_v2), 0, text, cursor_begin, cursor_end);
+}
+
+/**
+ * @ingroup iface_zwp_input_method_v2
+ *
+ * Remove the surrounding text.
+ *
+ * before_length and after_length are the number of bytes before and after
+ * the current cursor index (excluding the preedit text) to delete.
+ *
+ * If any preedit text is present, it is replaced with the cursor for the
+ * purpose of this event. In effect before_length is counted from the
+ * beginning of preedit text, and after_length from its end (see commit
+ * event sequence).
+ *
+ * Values set with this event are double-buffered. They must be applied
+ * and reset to initial on the next zwp_input_method_v2.commit request.
+ *
+ * The initial values of both before_length and after_length are 0.
+ */
+static inline void
+zwp_input_method_v2_delete_surrounding_text(struct zwp_input_method_v2 *zwp_input_method_v2, uint32_t before_length, uint32_t after_length)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_input_method_v2,
+			 ZWP_INPUT_METHOD_V2_DELETE_SURROUNDING_TEXT, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_input_method_v2), 0, before_length, after_length);
+}
+
+/**
+ * @ingroup iface_zwp_input_method_v2
+ *
+ * Apply state changes from commit_string, set_preedit_string and
+ * delete_surrounding_text requests.
+ *
+ * The state relating to these events is double-buffered, and each one
+ * modifies the pending state. This request replaces the current state
+ * with the pending state.
+ *
+ * The connected text input is expected to proceed by evaluating the
+ * changes in the following order:
+ *
+ * 1. Replace existing preedit string with the cursor.
+ * 2. Delete requested surrounding text.
+ * 3. Insert commit string with the cursor at its end.
+ * 4. Calculate surrounding text to send.
+ * 5. Insert new preedit text in cursor position.
+ * 6. Place cursor inside preedit text.
+ *
+ * The serial number reflects the last state of the zwp_input_method_v2
+ * object known to the client. The value of the serial argument must be
+ * equal to the number of done events already issued by that object. When
+ * the compositor receives a commit request with a serial different than
+ * the number of past done events, it must proceed as normal, except it
+ * should not change the current state of the zwp_input_method_v2 object.
+ */
+static inline void
+zwp_input_method_v2_commit(struct zwp_input_method_v2 *zwp_input_method_v2, uint32_t serial)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_input_method_v2,
+			 ZWP_INPUT_METHOD_V2_COMMIT, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_input_method_v2), 0, serial);
+}
+
+/**
+ * @ingroup iface_zwp_input_method_v2
+ *
+ * Creates a new zwp_input_popup_surface_v2 object wrapping a given
+ * surface.
+ *
+ * The surface gets assigned the "input_popup" role. If the surface
+ * already has an assigned role, the compositor must issue a protocol
+ * error.
+ */
+static inline struct zwp_input_popup_surface_v2 *
+zwp_input_method_v2_get_input_popup_surface(struct zwp_input_method_v2 *zwp_input_method_v2, struct wl_surface *surface)
+{
+	struct wl_proxy *id;
+
+	id = wl_proxy_marshal_flags((struct wl_proxy *) zwp_input_method_v2,
+			 ZWP_INPUT_METHOD_V2_GET_INPUT_POPUP_SURFACE, &zwp_input_popup_surface_v2_interface, wl_proxy_get_version((struct wl_proxy *) zwp_input_method_v2), 0, NULL, surface);
+
+	return (struct zwp_input_popup_surface_v2 *) id;
+}
+
+/**
+ * @ingroup iface_zwp_input_method_v2
+ *
+ * Allow an input method to receive hardware keyboard input and process
+ * key events to generate text events (with pre-edit) over the wire. This
+ * allows input methods which compose multiple key events for inputting
+ * text like it is done for CJK languages.
+ *
+ * The compositor should send all keyboard events on the seat to the grab
+ * holder via the returned wl_keyboard object. Nevertheless, the
+ * compositor may decide not to forward any particular event. The
+ * compositor must not further process any event after it has been
+ * forwarded to the grab holder.
+ *
+ * Releasing the resulting wl_keyboard object releases the grab.
+ */
+static inline struct zwp_input_method_keyboard_grab_v2 *
+zwp_input_method_v2_grab_keyboard(struct zwp_input_method_v2 *zwp_input_method_v2)
+{
+	struct wl_proxy *keyboard;
+
+	keyboard = wl_proxy_marshal_flags((struct wl_proxy *) zwp_input_method_v2,
+			 ZWP_INPUT_METHOD_V2_GRAB_KEYBOARD, &zwp_input_method_keyboard_grab_v2_interface, wl_proxy_get_version((struct wl_proxy *) zwp_input_method_v2), 0, NULL);
+
+	return (struct zwp_input_method_keyboard_grab_v2 *) keyboard;
+}
+
+/**
+ * @ingroup iface_zwp_input_method_v2
+ *
+ * Destroys the zwp_text_input_v2 object and any associated child
+ * objects, i.e. zwp_input_popup_surface_v2 and
+ * zwp_input_method_keyboard_grab_v2.
+ */
+static inline void
+zwp_input_method_v2_destroy(struct zwp_input_method_v2 *zwp_input_method_v2)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_input_method_v2,
+			 ZWP_INPUT_METHOD_V2_DESTROY, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_input_method_v2), WL_MARSHAL_FLAG_DESTROY);
+}
+
+/**
+ * @ingroup iface_zwp_input_popup_surface_v2
+ * @struct zwp_input_popup_surface_v2_listener
+ */
+struct zwp_input_popup_surface_v2_listener {
+	/**
+	 * set text input area position
+	 *
+	 * Notify about the position of the area of the text input
+	 * expressed as a rectangle in surface local coordinates.
+	 *
+	 * This is a hint to the input method telling it the relative
+	 * position of the text being entered.
+	 */
+	void (*text_input_rectangle)(void *data,
+				     struct zwp_input_popup_surface_v2 *zwp_input_popup_surface_v2,
+				     int32_t x,
+				     int32_t y,
+				     int32_t width,
+				     int32_t height);
+};
+
+/**
+ * @ingroup iface_zwp_input_popup_surface_v2
+ */
+static inline int
+zwp_input_popup_surface_v2_add_listener(struct zwp_input_popup_surface_v2 *zwp_input_popup_surface_v2,
+					const struct zwp_input_popup_surface_v2_listener *listener, void *data)
+{
+	return wl_proxy_add_listener((struct wl_proxy *) zwp_input_popup_surface_v2,
+				     (void (**)(void)) listener, data);
+}
+
+#define ZWP_INPUT_POPUP_SURFACE_V2_DESTROY 0
+
+/**
+ * @ingroup iface_zwp_input_popup_surface_v2
+ */
+#define ZWP_INPUT_POPUP_SURFACE_V2_TEXT_INPUT_RECTANGLE_SINCE_VERSION 1
+
+/**
+ * @ingroup iface_zwp_input_popup_surface_v2
+ */
+#define ZWP_INPUT_POPUP_SURFACE_V2_DESTROY_SINCE_VERSION 1
+
+/** @ingroup iface_zwp_input_popup_surface_v2 */
+static inline void
+zwp_input_popup_surface_v2_set_user_data(struct zwp_input_popup_surface_v2 *zwp_input_popup_surface_v2, void *user_data)
+{
+	wl_proxy_set_user_data((struct wl_proxy *) zwp_input_popup_surface_v2, user_data);
+}
+
+/** @ingroup iface_zwp_input_popup_surface_v2 */
+static inline void *
+zwp_input_popup_surface_v2_get_user_data(struct zwp_input_popup_surface_v2 *zwp_input_popup_surface_v2)
+{
+	return wl_proxy_get_user_data((struct wl_proxy *) zwp_input_popup_surface_v2);
+}
+
+static inline uint32_t
+zwp_input_popup_surface_v2_get_version(struct zwp_input_popup_surface_v2 *zwp_input_popup_surface_v2)
+{
+	return wl_proxy_get_version((struct wl_proxy *) zwp_input_popup_surface_v2);
+}
+
+/**
+ * @ingroup iface_zwp_input_popup_surface_v2
+ */
+static inline void
+zwp_input_popup_surface_v2_destroy(struct zwp_input_popup_surface_v2 *zwp_input_popup_surface_v2)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_input_popup_surface_v2,
+			 ZWP_INPUT_POPUP_SURFACE_V2_DESTROY, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_input_popup_surface_v2), WL_MARSHAL_FLAG_DESTROY);
+}
+
+/**
+ * @ingroup iface_zwp_input_method_keyboard_grab_v2
+ * @struct zwp_input_method_keyboard_grab_v2_listener
+ */
+struct zwp_input_method_keyboard_grab_v2_listener {
+	/**
+	 * keyboard mapping
+	 *
+	 * This event provides a file descriptor to the client which can
+	 * be memory-mapped to provide a keyboard mapping description.
+	 * @param format keymap format
+	 * @param fd keymap file descriptor
+	 * @param size keymap size, in bytes
+	 */
+	void (*keymap)(void *data,
+		       struct zwp_input_method_keyboard_grab_v2 *zwp_input_method_keyboard_grab_v2,
+		       uint32_t format,
+		       int32_t fd,
+		       uint32_t size);
+	/**
+	 * key event
+	 *
+	 * A key was pressed or released. The time argument is a
+	 * timestamp with millisecond granularity, with an undefined base.
+	 * @param serial serial number of the key event
+	 * @param time timestamp with millisecond granularity
+	 * @param key key that produced the event
+	 * @param state physical state of the key
+	 */
+	void (*key)(void *data,
+		    struct zwp_input_method_keyboard_grab_v2 *zwp_input_method_keyboard_grab_v2,
+		    uint32_t serial,
+		    uint32_t time,
+		    uint32_t key,
+		    uint32_t state);
+	/**
+	 * modifier and group state
+	 *
+	 * Notifies clients that the modifier and/or group state has
+	 * changed, and it should update its local state.
+	 * @param serial serial number of the modifiers event
+	 * @param mods_depressed depressed modifiers
+	 * @param mods_latched latched modifiers
+	 * @param mods_locked locked modifiers
+	 * @param group keyboard layout
+	 */
+	void (*modifiers)(void *data,
+			  struct zwp_input_method_keyboard_grab_v2 *zwp_input_method_keyboard_grab_v2,
+			  uint32_t serial,
+			  uint32_t mods_depressed,
+			  uint32_t mods_latched,
+			  uint32_t mods_locked,
+			  uint32_t group);
+	/**
+	 * repeat rate and delay
+	 *
+	 * Informs the client about the keyboard's repeat rate and delay.
+	 *
+	 * This event is sent as soon as the
+	 * zwp_input_method_keyboard_grab_v2 object has been created, and
+	 * is guaranteed to be received by the client before any key press
+	 * event.
+	 *
+	 * Negative values for either rate or delay are illegal. A rate of
+	 * zero will disable any repeating (regardless of the value of
+	 * delay).
+	 *
+	 * This event can be sent later on as well with a new value if
+	 * necessary, so clients should continue listening for the event
+	 * past the creation of zwp_input_method_keyboard_grab_v2.
+	 * @param rate the rate of repeating keys in characters per second
+	 * @param delay delay in milliseconds since key down until repeating starts
+	 */
+	void (*repeat_info)(void *data,
+			    struct zwp_input_method_keyboard_grab_v2 *zwp_input_method_keyboard_grab_v2,
+			    int32_t rate,
+			    int32_t delay);
+};
+
+/**
+ * @ingroup iface_zwp_input_method_keyboard_grab_v2
+ */
+static inline int
+zwp_input_method_keyboard_grab_v2_add_listener(struct zwp_input_method_keyboard_grab_v2 *zwp_input_method_keyboard_grab_v2,
+					       const struct zwp_input_method_keyboard_grab_v2_listener *listener, void *data)
+{
+	return wl_proxy_add_listener((struct wl_proxy *) zwp_input_method_keyboard_grab_v2,
+				     (void (**)(void)) listener, data);
+}
+
+#define ZWP_INPUT_METHOD_KEYBOARD_GRAB_V2_RELEASE 0
+
+/**
+ * @ingroup iface_zwp_input_method_keyboard_grab_v2
+ */
+#define ZWP_INPUT_METHOD_KEYBOARD_GRAB_V2_KEYMAP_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_keyboard_grab_v2
+ */
+#define ZWP_INPUT_METHOD_KEYBOARD_GRAB_V2_KEY_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_keyboard_grab_v2
+ */
+#define ZWP_INPUT_METHOD_KEYBOARD_GRAB_V2_MODIFIERS_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_keyboard_grab_v2
+ */
+#define ZWP_INPUT_METHOD_KEYBOARD_GRAB_V2_REPEAT_INFO_SINCE_VERSION 1
+
+/**
+ * @ingroup iface_zwp_input_method_keyboard_grab_v2
+ */
+#define ZWP_INPUT_METHOD_KEYBOARD_GRAB_V2_RELEASE_SINCE_VERSION 1
+
+/** @ingroup iface_zwp_input_method_keyboard_grab_v2 */
+static inline void
+zwp_input_method_keyboard_grab_v2_set_user_data(struct zwp_input_method_keyboard_grab_v2 *zwp_input_method_keyboard_grab_v2, void *user_data)
+{
+	wl_proxy_set_user_data((struct wl_proxy *) zwp_input_method_keyboard_grab_v2, user_data);
+}
+
+/** @ingroup iface_zwp_input_method_keyboard_grab_v2 */
+static inline void *
+zwp_input_method_keyboard_grab_v2_get_user_data(struct zwp_input_method_keyboard_grab_v2 *zwp_input_method_keyboard_grab_v2)
+{
+	return wl_proxy_get_user_data((struct wl_proxy *) zwp_input_method_keyboard_grab_v2);
+}
+
+static inline uint32_t
+zwp_input_method_keyboard_grab_v2_get_version(struct zwp_input_method_keyboard_grab_v2 *zwp_input_method_keyboard_grab_v2)
+{
+	return wl_proxy_get_version((struct wl_proxy *) zwp_input_method_keyboard_grab_v2);
+}
+
+/** @ingroup iface_zwp_input_method_keyboard_grab_v2 */
+static inline void
+zwp_input_method_keyboard_grab_v2_destroy(struct zwp_input_method_keyboard_grab_v2 *zwp_input_method_keyboard_grab_v2)
+{
+	wl_proxy_destroy((struct wl_proxy *) zwp_input_method_keyboard_grab_v2);
+}
+
+/**
+ * @ingroup iface_zwp_input_method_keyboard_grab_v2
+ */
+static inline void
+zwp_input_method_keyboard_grab_v2_release(struct zwp_input_method_keyboard_grab_v2 *zwp_input_method_keyboard_grab_v2)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_input_method_keyboard_grab_v2,
+			 ZWP_INPUT_METHOD_KEYBOARD_GRAB_V2_RELEASE, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_input_method_keyboard_grab_v2), WL_MARSHAL_FLAG_DESTROY);
+}
+
+#define ZWP_INPUT_METHOD_MANAGER_V2_GET_INPUT_METHOD 0
+#define ZWP_INPUT_METHOD_MANAGER_V2_DESTROY 1
+
+
+/**
+ * @ingroup iface_zwp_input_method_manager_v2
+ */
+#define ZWP_INPUT_METHOD_MANAGER_V2_GET_INPUT_METHOD_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_input_method_manager_v2
+ */
+#define ZWP_INPUT_METHOD_MANAGER_V2_DESTROY_SINCE_VERSION 1
+
+/** @ingroup iface_zwp_input_method_manager_v2 */
+static inline void
+zwp_input_method_manager_v2_set_user_data(struct zwp_input_method_manager_v2 *zwp_input_method_manager_v2, void *user_data)
+{
+	wl_proxy_set_user_data((struct wl_proxy *) zwp_input_method_manager_v2, user_data);
+}
+
+/** @ingroup iface_zwp_input_method_manager_v2 */
+static inline void *
+zwp_input_method_manager_v2_get_user_data(struct zwp_input_method_manager_v2 *zwp_input_method_manager_v2)
+{
+	return wl_proxy_get_user_data((struct wl_proxy *) zwp_input_method_manager_v2);
+}
+
+static inline uint32_t
+zwp_input_method_manager_v2_get_version(struct zwp_input_method_manager_v2 *zwp_input_method_manager_v2)
+{
+	return wl_proxy_get_version((struct wl_proxy *) zwp_input_method_manager_v2);
+}
+
+/**
+ * @ingroup iface_zwp_input_method_manager_v2
+ *
+ * Request a new input zwp_input_method_v2 object associated with a given
+ * seat.
+ */
+static inline struct zwp_input_method_v2 *
+zwp_input_method_manager_v2_get_input_method(struct zwp_input_method_manager_v2 *zwp_input_method_manager_v2, struct wl_seat *seat)
+{
+	struct wl_proxy *input_method;
+
+	input_method = wl_proxy_marshal_flags((struct wl_proxy *) zwp_input_method_manager_v2,
+			 ZWP_INPUT_METHOD_MANAGER_V2_GET_INPUT_METHOD, &zwp_input_method_v2_interface, wl_proxy_get_version((struct wl_proxy *) zwp_input_method_manager_v2), 0, seat, NULL);
+
+	return (struct zwp_input_method_v2 *) input_method;
+}
+
+/**
+ * @ingroup iface_zwp_input_method_manager_v2
+ *
+ * Destroys the zwp_input_method_manager_v2 object.
+ *
+ * The zwp_input_method_v2 objects originating from it remain valid.
+ */
+static inline void
+zwp_input_method_manager_v2_destroy(struct zwp_input_method_manager_v2 *zwp_input_method_manager_v2)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_input_method_manager_v2,
+			 ZWP_INPUT_METHOD_MANAGER_V2_DESTROY, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_input_method_manager_v2), WL_MARSHAL_FLAG_DESTROY);
+}
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif

input-method-unstable-v2-protocol.c

@@ -0,0 +1,132 @@
+/* Generated by wayland-scanner 1.21.0 */
+
+/*
+ * Copyright © 2008-2011 Kristian Høgsberg
+ * Copyright © 2010-2011 Intel Corporation
+ * Copyright © 2012-2013 Collabora, Ltd.
+ * Copyright © 2012, 2013 Intel Corporation
+ * Copyright © 2015, 2016 Jan Arne Petersen
+ * Copyright © 2017, 2018 Red Hat, Inc.
+ * Copyright © 2018       Purism SPC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include "wayland-util.h"
+
+#ifndef __has_attribute
+# define __has_attribute(x) 0  /* Compatibility with non-clang compilers. */
+#endif
+
+#if (__has_attribute(visibility) || defined(__GNUC__) && __GNUC__ >= 4)
+#define WL_PRIVATE __attribute__ ((visibility("hidden")))
+#else
+#define WL_PRIVATE
+#endif
+
+extern const struct wl_interface wl_seat_interface;
+extern const struct wl_interface wl_surface_interface;
+extern const struct wl_interface zwp_input_method_keyboard_grab_v2_interface;
+extern const struct wl_interface zwp_input_method_v2_interface;
+extern const struct wl_interface zwp_input_popup_surface_v2_interface;
+
+static const struct wl_interface *input_method_unstable_v2_types[] = {
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	&zwp_input_popup_surface_v2_interface,
+	&wl_surface_interface,
+	&zwp_input_method_keyboard_grab_v2_interface,
+	&wl_seat_interface,
+	&zwp_input_method_v2_interface,
+};
+
+static const struct wl_message zwp_input_method_v2_requests[] = {
+	{ "commit_string", "s", input_method_unstable_v2_types + 0 },
+	{ "set_preedit_string", "sii", input_method_unstable_v2_types + 0 },
+	{ "delete_surrounding_text", "uu", input_method_unstable_v2_types + 0 },
+	{ "commit", "u", input_method_unstable_v2_types + 0 },
+	{ "get_input_popup_surface", "no", input_method_unstable_v2_types + 5 },
+	{ "grab_keyboard", "n", input_method_unstable_v2_types + 7 },
+	{ "destroy", "", input_method_unstable_v2_types + 0 },
+};
+
+static const struct wl_message zwp_input_method_v2_events[] = {
+	{ "activate", "", input_method_unstable_v2_types + 0 },
+	{ "deactivate", "", input_method_unstable_v2_types + 0 },
+	{ "surrounding_text", "suu", input_method_unstable_v2_types + 0 },
+	{ "text_change_cause", "u", input_method_unstable_v2_types + 0 },
+	{ "content_type", "uu", input_method_unstable_v2_types + 0 },
+	{ "done", "", input_method_unstable_v2_types + 0 },
+	{ "unavailable", "", input_method_unstable_v2_types + 0 },
+};
+
+WL_PRIVATE const struct wl_interface zwp_input_method_v2_interface = {
+	"zwp_input_method_v2", 1,
+	7, zwp_input_method_v2_requests,
+	7, zwp_input_method_v2_events,
+};
+
+static const struct wl_message zwp_input_popup_surface_v2_requests[] = {
+	{ "destroy", "", input_method_unstable_v2_types + 0 },
+};
+
+static const struct wl_message zwp_input_popup_surface_v2_events[] = {
+	{ "text_input_rectangle", "iiii", input_method_unstable_v2_types + 0 },
+};
+
+WL_PRIVATE const struct wl_interface zwp_input_popup_surface_v2_interface = {
+	"zwp_input_popup_surface_v2", 1,
+	1, zwp_input_popup_surface_v2_requests,
+	1, zwp_input_popup_surface_v2_events,
+};
+
+static const struct wl_message zwp_input_method_keyboard_grab_v2_requests[] = {
+	{ "release", "", input_method_unstable_v2_types + 0 },
+};
+
+static const struct wl_message zwp_input_method_keyboard_grab_v2_events[] = {
+	{ "keymap", "uhu", input_method_unstable_v2_types + 0 },
+	{ "key", "uuuu", input_method_unstable_v2_types + 0 },
+	{ "modifiers", "uuuuu", input_method_unstable_v2_types + 0 },
+	{ "repeat_info", "ii", input_method_unstable_v2_types + 0 },
+};
+
+WL_PRIVATE const struct wl_interface zwp_input_method_keyboard_grab_v2_interface = {
+	"zwp_input_method_keyboard_grab_v2", 1,
+	1, zwp_input_method_keyboard_grab_v2_requests,
+	4, zwp_input_method_keyboard_grab_v2_events,
+};
+
+static const struct wl_message zwp_input_method_manager_v2_requests[] = {
+	{ "get_input_method", "on", input_method_unstable_v2_types + 8 },
+	{ "destroy", "", input_method_unstable_v2_types + 0 },
+};
+
+WL_PRIVATE const struct wl_interface zwp_input_method_manager_v2_interface = {
+	"zwp_input_method_manager_v2", 1,
+	2, zwp_input_method_manager_v2_requests,
+	0, NULL,
+};
+

main.c

@@ -70,6 +70,7 @@ threadmain(int argc, char **argv)
 	proccreate(drawthread, nil, 16384);
 	proccreate(srvthread, nil, 16384);
 	proccreate(ibusthread, nil, 32768);
+	proccreate(waylandthread, nil, 32768);
 	threadcreate(dictthread, nil, 16384);
 	threadcreate(imthread, nil, 16384);
 

srv.c

@@ -11,6 +11,7 @@ sendkey(int fd, u32int ks, u32int mod)
 	kr.fd = fd;
 	kr.ks = ks;
 	kr.mod = mod;
+	kr.want = 0;
 	chansend(keyc, &kr);
 }
 

strans.c

@@ -312,6 +312,13 @@ imthread(void*)
 				out[1] = len;
 				n += len;
 			}
+			if(kr.want){
+				len = im.pre.n > 0 ?
+					stoutf(&im.pre, (char*)(out+n+1),
+						sizeof(out)-n-1) : 0;
+				out[n] = len;
+				n += 1 + len;
+			}
 			write(kr.fd, out, n);
 			break;
 		case 1:

virtual-keyboard-unstable-v1-client-protocol.h

@@ -0,0 +1,280 @@
+/* Generated by wayland-scanner 1.23.1 */
+
+#ifndef VIRTUAL_KEYBOARD_UNSTABLE_V1_CLIENT_PROTOCOL_H
+#define VIRTUAL_KEYBOARD_UNSTABLE_V1_CLIENT_PROTOCOL_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include "wayland-client.h"
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @page page_virtual_keyboard_unstable_v1 The virtual_keyboard_unstable_v1 protocol
+ * @section page_ifaces_virtual_keyboard_unstable_v1 Interfaces
+ * - @subpage page_iface_zwp_virtual_keyboard_v1 - virtual keyboard
+ * - @subpage page_iface_zwp_virtual_keyboard_manager_v1 - virtual keyboard manager
+ * @section page_copyright_virtual_keyboard_unstable_v1 Copyright
+ * <pre>
+ *
+ * Copyright © 2008-2011  Kristian Høgsberg
+ * Copyright © 2010-2013  Intel Corporation
+ * Copyright © 2012-2013  Collabora, Ltd.
+ * Copyright © 2018       Purism SPC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ * </pre>
+ */
+struct wl_seat;
+struct zwp_virtual_keyboard_manager_v1;
+struct zwp_virtual_keyboard_v1;
+
+#ifndef ZWP_VIRTUAL_KEYBOARD_V1_INTERFACE
+#define ZWP_VIRTUAL_KEYBOARD_V1_INTERFACE
+/**
+ * @page page_iface_zwp_virtual_keyboard_v1 zwp_virtual_keyboard_v1
+ * @section page_iface_zwp_virtual_keyboard_v1_desc Description
+ *
+ * The virtual keyboard provides an application with requests which emulate
+ * the behaviour of a physical keyboard.
+ *
+ * This interface can be used by clients on its own to provide raw input
+ * events, or it can accompany the input method protocol.
+ * @section page_iface_zwp_virtual_keyboard_v1_api API
+ * See @ref iface_zwp_virtual_keyboard_v1.
+ */
+/**
+ * @defgroup iface_zwp_virtual_keyboard_v1 The zwp_virtual_keyboard_v1 interface
+ *
+ * The virtual keyboard provides an application with requests which emulate
+ * the behaviour of a physical keyboard.
+ *
+ * This interface can be used by clients on its own to provide raw input
+ * events, or it can accompany the input method protocol.
+ */
+extern const struct wl_interface zwp_virtual_keyboard_v1_interface;
+#endif
+#ifndef ZWP_VIRTUAL_KEYBOARD_MANAGER_V1_INTERFACE
+#define ZWP_VIRTUAL_KEYBOARD_MANAGER_V1_INTERFACE
+/**
+ * @page page_iface_zwp_virtual_keyboard_manager_v1 zwp_virtual_keyboard_manager_v1
+ * @section page_iface_zwp_virtual_keyboard_manager_v1_desc Description
+ *
+ * A virtual keyboard manager allows an application to provide keyboard
+ * input events as if they came from a physical keyboard.
+ * @section page_iface_zwp_virtual_keyboard_manager_v1_api API
+ * See @ref iface_zwp_virtual_keyboard_manager_v1.
+ */
+/**
+ * @defgroup iface_zwp_virtual_keyboard_manager_v1 The zwp_virtual_keyboard_manager_v1 interface
+ *
+ * A virtual keyboard manager allows an application to provide keyboard
+ * input events as if they came from a physical keyboard.
+ */
+extern const struct wl_interface zwp_virtual_keyboard_manager_v1_interface;
+#endif
+
+#ifndef ZWP_VIRTUAL_KEYBOARD_V1_ERROR_ENUM
+#define ZWP_VIRTUAL_KEYBOARD_V1_ERROR_ENUM
+enum zwp_virtual_keyboard_v1_error {
+	/**
+	 * No keymap was set
+	 */
+	ZWP_VIRTUAL_KEYBOARD_V1_ERROR_NO_KEYMAP = 0,
+};
+#endif /* ZWP_VIRTUAL_KEYBOARD_V1_ERROR_ENUM */
+
+#define ZWP_VIRTUAL_KEYBOARD_V1_KEYMAP 0
+#define ZWP_VIRTUAL_KEYBOARD_V1_KEY 1
+#define ZWP_VIRTUAL_KEYBOARD_V1_MODIFIERS 2
+#define ZWP_VIRTUAL_KEYBOARD_V1_DESTROY 3
+
+
+/**
+ * @ingroup iface_zwp_virtual_keyboard_v1
+ */
+#define ZWP_VIRTUAL_KEYBOARD_V1_KEYMAP_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_virtual_keyboard_v1
+ */
+#define ZWP_VIRTUAL_KEYBOARD_V1_KEY_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_virtual_keyboard_v1
+ */
+#define ZWP_VIRTUAL_KEYBOARD_V1_MODIFIERS_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_virtual_keyboard_v1
+ */
+#define ZWP_VIRTUAL_KEYBOARD_V1_DESTROY_SINCE_VERSION 1
+
+/** @ingroup iface_zwp_virtual_keyboard_v1 */
+static inline void
+zwp_virtual_keyboard_v1_set_user_data(struct zwp_virtual_keyboard_v1 *zwp_virtual_keyboard_v1, void *user_data)
+{
+	wl_proxy_set_user_data((struct wl_proxy *) zwp_virtual_keyboard_v1, user_data);
+}
+
+/** @ingroup iface_zwp_virtual_keyboard_v1 */
+static inline void *
+zwp_virtual_keyboard_v1_get_user_data(struct zwp_virtual_keyboard_v1 *zwp_virtual_keyboard_v1)
+{
+	return wl_proxy_get_user_data((struct wl_proxy *) zwp_virtual_keyboard_v1);
+}
+
+static inline uint32_t
+zwp_virtual_keyboard_v1_get_version(struct zwp_virtual_keyboard_v1 *zwp_virtual_keyboard_v1)
+{
+	return wl_proxy_get_version((struct wl_proxy *) zwp_virtual_keyboard_v1);
+}
+
+/**
+ * @ingroup iface_zwp_virtual_keyboard_v1
+ *
+ * Provide a file descriptor to the compositor which can be
+ * memory-mapped to provide a keyboard mapping description.
+ *
+ * Format carries a value from the keymap_format enumeration.
+ */
+static inline void
+zwp_virtual_keyboard_v1_keymap(struct zwp_virtual_keyboard_v1 *zwp_virtual_keyboard_v1, uint32_t format, int32_t fd, uint32_t size)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_virtual_keyboard_v1,
+			 ZWP_VIRTUAL_KEYBOARD_V1_KEYMAP, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_virtual_keyboard_v1), 0, format, fd, size);
+}
+
+/**
+ * @ingroup iface_zwp_virtual_keyboard_v1
+ *
+ * A key was pressed or released.
+ * The time argument is a timestamp with millisecond granularity, with an
+ * undefined base. All requests regarding a single object must share the
+ * same clock.
+ *
+ * Keymap must be set before issuing this request.
+ *
+ * State carries a value from the key_state enumeration.
+ */
+static inline void
+zwp_virtual_keyboard_v1_key(struct zwp_virtual_keyboard_v1 *zwp_virtual_keyboard_v1, uint32_t time, uint32_t key, uint32_t state)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_virtual_keyboard_v1,
+			 ZWP_VIRTUAL_KEYBOARD_V1_KEY, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_virtual_keyboard_v1), 0, time, key, state);
+}
+
+/**
+ * @ingroup iface_zwp_virtual_keyboard_v1
+ *
+ * Notifies the compositor that the modifier and/or group state has
+ * changed, and it should update state.
+ *
+ * The client should use wl_keyboard.modifiers event to synchronize its
+ * internal state with seat state.
+ *
+ * Keymap must be set before issuing this request.
+ */
+static inline void
+zwp_virtual_keyboard_v1_modifiers(struct zwp_virtual_keyboard_v1 *zwp_virtual_keyboard_v1, uint32_t mods_depressed, uint32_t mods_latched, uint32_t mods_locked, uint32_t group)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_virtual_keyboard_v1,
+			 ZWP_VIRTUAL_KEYBOARD_V1_MODIFIERS, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_virtual_keyboard_v1), 0, mods_depressed, mods_latched, mods_locked, group);
+}
+
+/**
+ * @ingroup iface_zwp_virtual_keyboard_v1
+ */
+static inline void
+zwp_virtual_keyboard_v1_destroy(struct zwp_virtual_keyboard_v1 *zwp_virtual_keyboard_v1)
+{
+	wl_proxy_marshal_flags((struct wl_proxy *) zwp_virtual_keyboard_v1,
+			 ZWP_VIRTUAL_KEYBOARD_V1_DESTROY, NULL, wl_proxy_get_version((struct wl_proxy *) zwp_virtual_keyboard_v1), WL_MARSHAL_FLAG_DESTROY);
+}
+
+#ifndef ZWP_VIRTUAL_KEYBOARD_MANAGER_V1_ERROR_ENUM
+#define ZWP_VIRTUAL_KEYBOARD_MANAGER_V1_ERROR_ENUM
+enum zwp_virtual_keyboard_manager_v1_error {
+	/**
+	 * client not authorized to use the interface
+	 */
+	ZWP_VIRTUAL_KEYBOARD_MANAGER_V1_ERROR_UNAUTHORIZED = 0,
+};
+#endif /* ZWP_VIRTUAL_KEYBOARD_MANAGER_V1_ERROR_ENUM */
+
+#define ZWP_VIRTUAL_KEYBOARD_MANAGER_V1_CREATE_VIRTUAL_KEYBOARD 0
+
+
+/**
+ * @ingroup iface_zwp_virtual_keyboard_manager_v1
+ */
+#define ZWP_VIRTUAL_KEYBOARD_MANAGER_V1_CREATE_VIRTUAL_KEYBOARD_SINCE_VERSION 1
+
+/** @ingroup iface_zwp_virtual_keyboard_manager_v1 */
+static inline void
+zwp_virtual_keyboard_manager_v1_set_user_data(struct zwp_virtual_keyboard_manager_v1 *zwp_virtual_keyboard_manager_v1, void *user_data)
+{
+	wl_proxy_set_user_data((struct wl_proxy *) zwp_virtual_keyboard_manager_v1, user_data);
+}
+
+/** @ingroup iface_zwp_virtual_keyboard_manager_v1 */
+static inline void *
+zwp_virtual_keyboard_manager_v1_get_user_data(struct zwp_virtual_keyboard_manager_v1 *zwp_virtual_keyboard_manager_v1)
+{
+	return wl_proxy_get_user_data((struct wl_proxy *) zwp_virtual_keyboard_manager_v1);
+}
+
+static inline uint32_t
+zwp_virtual_keyboard_manager_v1_get_version(struct zwp_virtual_keyboard_manager_v1 *zwp_virtual_keyboard_manager_v1)
+{
+	return wl_proxy_get_version((struct wl_proxy *) zwp_virtual_keyboard_manager_v1);
+}
+
+/** @ingroup iface_zwp_virtual_keyboard_manager_v1 */
+static inline void
+zwp_virtual_keyboard_manager_v1_destroy(struct zwp_virtual_keyboard_manager_v1 *zwp_virtual_keyboard_manager_v1)
+{
+	wl_proxy_destroy((struct wl_proxy *) zwp_virtual_keyboard_manager_v1);
+}
+
+/**
+ * @ingroup iface_zwp_virtual_keyboard_manager_v1
+ *
+ * Creates a new virtual keyboard associated to a seat.
+ *
+ * If the compositor enables a keyboard to perform arbitrary actions, it
+ * should present an error when an untrusted client requests a new
+ * keyboard.
+ */
+static inline struct zwp_virtual_keyboard_v1 *
+zwp_virtual_keyboard_manager_v1_create_virtual_keyboard(struct zwp_virtual_keyboard_manager_v1 *zwp_virtual_keyboard_manager_v1, struct wl_seat *seat)
+{
+	struct wl_proxy *id;
+
+	id = wl_proxy_marshal_flags((struct wl_proxy *) zwp_virtual_keyboard_manager_v1,
+			 ZWP_VIRTUAL_KEYBOARD_MANAGER_V1_CREATE_VIRTUAL_KEYBOARD, &zwp_virtual_keyboard_v1_interface, wl_proxy_get_version((struct wl_proxy *) zwp_virtual_keyboard_manager_v1), 0, seat, NULL);
+
+	return (struct zwp_virtual_keyboard_v1 *) id;
+}
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif

virtual-keyboard-unstable-v1-protocol.c

@@ -0,0 +1,78 @@
+/* Generated by wayland-scanner 1.23.1 */
+
+/*
+ * Copyright © 2008-2011  Kristian Høgsberg
+ * Copyright © 2010-2013  Intel Corporation
+ * Copyright © 2012-2013  Collabora, Ltd.
+ * Copyright © 2018       Purism SPC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include "wayland-util.h"
+
+#ifndef __has_attribute
+# define __has_attribute(x) 0  /* Compatibility with non-clang compilers. */
+#endif
+
+#if (__has_attribute(visibility) || defined(__GNUC__) && __GNUC__ >= 4)
+#define WL_PRIVATE __attribute__ ((visibility("hidden")))
+#else
+#define WL_PRIVATE
+#endif
+
+extern const struct wl_interface wl_seat_interface;
+extern const struct wl_interface zwp_virtual_keyboard_v1_interface;
+
+static const struct wl_interface *virtual_keyboard_unstable_v1_types[] = {
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	&wl_seat_interface,
+	&zwp_virtual_keyboard_v1_interface,
+};
+
+static const struct wl_message zwp_virtual_keyboard_v1_requests[] = {
+	{ "keymap", "uhu", virtual_keyboard_unstable_v1_types + 0 },
+	{ "key", "uuu", virtual_keyboard_unstable_v1_types + 0 },
+	{ "modifiers", "uuuu", virtual_keyboard_unstable_v1_types + 0 },
+	{ "destroy", "", virtual_keyboard_unstable_v1_types + 0 },
+};
+
+WL_PRIVATE const struct wl_interface zwp_virtual_keyboard_v1_interface = {
+	"zwp_virtual_keyboard_v1", 1,
+	4, zwp_virtual_keyboard_v1_requests,
+	0, NULL,
+};
+
+static const struct wl_message zwp_virtual_keyboard_manager_v1_requests[] = {
+	{ "create_virtual_keyboard", "on", virtual_keyboard_unstable_v1_types + 4 },
+};
+
+WL_PRIVATE const struct wl_interface zwp_virtual_keyboard_manager_v1_interface = {
+	"zwp_virtual_keyboard_manager_v1", 1,
+	1, zwp_virtual_keyboard_manager_v1_requests,
+	0, NULL,
+};
+

wayland.c

@@ -0,0 +1,350 @@
+#include "dat.h"
+#include "fn.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <wayland-client.h>
+#include <xkbcommon/xkbcommon.h>
+#include "input-method-unstable-v2-client-protocol.h"
+#include "virtual-keyboard-unstable-v1-client-protocol.h"
+
+static struct wl_display *dpy;
+static struct wl_seat *seat;
+static struct zwp_input_method_manager_v2 *immgr;
+static struct zwp_virtual_keyboard_manager_v1 *vkmgr;
+static struct zwp_input_method_v2 *im;
+static struct zwp_input_method_keyboard_grab_v2 *grab;
+static struct zwp_virtual_keyboard_v1 *vk;
+static struct xkb_context *xkb;
+static struct xkb_keymap *keymap;
+static struct xkb_state *xkbst;
+static int active;
+static int pending;
+static u32int imserial;
+
+static void
+sendkey(u32int ks, u32int mod, char *com, int csz, char *pre, int psz,
+	int *eaten)
+{
+	Keyreq kr;
+	int p[2];
+	uchar hdr[2];
+	uchar pl;
+	int n;
+
+	*eaten = 0;
+	com[0] = '\0';
+	pre[0] = '\0';
+	if(pipe(p) < 0)
+		return;
+	kr.fd = p[1];
+	kr.ks = ks;
+	kr.mod = mod;
+	kr.want = 1;
+	chansend(keyc, &kr);
+	if(read(p[0], hdr, 2) != 2)
+		goto out;
+	*eaten = hdr[0];
+	n = hdr[1];
+	if(n > 0 && n < csz){
+		if(read(p[0], com, n) != n)
+			goto out;
+		com[n] = '\0';
+	}
+	if(read(p[0], &pl, 1) != 1)
+		goto out;
+	if(pl > 0 && pl < psz){
+		if(read(p[0], pre, pl) != pl)
+			goto out;
+		pre[pl] = '\0';
+	}
+out:
+	close(p[0]);
+	close(p[1]);
+}
+
+static void
+sendreset(void)
+{
+	char com[64], pre[256];
+	int eaten;
+
+	sendkey(Kesc, 0, com, sizeof(com), pre, sizeof(pre), &eaten);
+}
+
+static u32int
+mget(void)
+{
+	u32int m;
+
+	m = 0;
+	if(xkbst == nil)
+		return 0;
+	if(xkb_state_mod_name_is_active(xkbst,
+		XKB_MOD_NAME_SHIFT, XKB_STATE_MODS_EFFECTIVE) > 0)
+		m |= Mshift;
+	if(xkb_state_mod_name_is_active(xkbst,
+		XKB_MOD_NAME_CTRL, XKB_STATE_MODS_EFFECTIVE) > 0)
+		m |= Mctrl;
+	if(xkb_state_mod_name_is_active(xkbst,
+		XKB_MOD_NAME_ALT, XKB_STATE_MODS_EFFECTIVE) > 0)
+		m |= Malt;
+	if(xkb_state_mod_name_is_active(xkbst,
+		XKB_MOD_NAME_LOGO, XKB_STATE_MODS_EFFECTIVE) > 0)
+		m |= Msuper;
+	return m;
+}
+
+static void
+kpress(uint32_t time, uint32_t keycode, uint32_t state)
+{
+	xkb_keysym_t ks;
+	u32int k, mod;
+	char com[64], pre[256];
+	int eaten, plen;
+
+	if(state != WL_KEYBOARD_KEY_STATE_PRESSED || xkbst == nil){
+		zwp_virtual_keyboard_v1_key(vk, time, keycode, state);
+		return;
+	}
+	ks = xkb_state_key_get_one_sym(xkbst, keycode + 8);
+	k = ks >= 0xff00 ? Kspec + (ks - 0xff00) : xkb_keysym_to_utf32(ks);
+	if(k == 0){
+		zwp_virtual_keyboard_v1_key(vk, time, keycode, state);
+		return;
+	}
+	mod = mget();
+	sendkey(k, mod, com, sizeof(com), pre, sizeof(pre), &eaten);
+	if(com[0] != '\0')
+		zwp_input_method_v2_commit_string(im, com);
+	plen = strlen(pre);
+	zwp_input_method_v2_set_preedit_string(im, pre, plen, plen);
+	zwp_input_method_v2_commit(im, imserial);
+	if(!eaten)
+		zwp_virtual_keyboard_v1_key(vk, time, keycode, state);
+}
+
+static void
+kg_keymap(void *data, struct zwp_input_method_keyboard_grab_v2 *g,
+	uint32_t format, int32_t fd, uint32_t size)
+{
+	char *s;
+
+	(void)data;
+	(void)g;
+	if(format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1){
+		close(fd);
+		return;
+	}
+	s = mmap(nil, size, PROT_READ, MAP_PRIVATE, fd, 0);
+	if(s != MAP_FAILED){
+		if(xkbst != nil){
+			xkb_state_unref(xkbst);
+			xkbst = nil;
+		}
+		if(keymap != nil)
+			xkb_keymap_unref(keymap);
+		keymap = xkb_keymap_new_from_string(xkb, s,
+			XKB_KEYMAP_FORMAT_TEXT_V1,
+			XKB_KEYMAP_COMPILE_NO_FLAGS);
+		if(keymap != nil)
+			xkbst = xkb_state_new(keymap);
+		munmap(s, size);
+	}
+	zwp_virtual_keyboard_v1_keymap(vk, format, fd, size);
+}
+
+static void
+kg_key(void *data, struct zwp_input_method_keyboard_grab_v2 *g,
+	uint32_t serial, uint32_t time, uint32_t key, uint32_t state)
+{
+	(void)data;
+	(void)g;
+	(void)serial;
+	kpress(time, key, state);
+}
+
+static void
+kg_mods(void *data, struct zwp_input_method_keyboard_grab_v2 *g,
+	uint32_t serial, uint32_t dep, uint32_t lat, uint32_t lck,
+	uint32_t group)
+{
+	(void)data;
+	(void)g;
+	(void)serial;
+	if(xkbst != nil)
+		xkb_state_update_mask(xkbst, dep, lat, lck, 0, 0, group);
+	zwp_virtual_keyboard_v1_modifiers(vk, dep, lat, lck, group);
+}
+
+static void
+kg_repeat(void *data, struct zwp_input_method_keyboard_grab_v2 *g,
+	int32_t rate, int32_t delay)
+{
+	(void)data;
+	(void)g;
+	(void)rate;
+	(void)delay;
+}
+
+static const struct zwp_input_method_keyboard_grab_v2_listener
+grab_listener = {
+	.keymap = kg_keymap,
+	.key = kg_key,
+	.modifiers = kg_mods,
+	.repeat_info = kg_repeat,
+};
+
+static void
+im_activate(void *data, struct zwp_input_method_v2 *m)
+{
+	(void)data;
+	(void)m;
+	pending = 1;
+}
+
+static void
+im_deactivate(void *data, struct zwp_input_method_v2 *m)
+{
+	(void)data;
+	(void)m;
+	pending = 0;
+	if(active){
+		active = 0;
+		sendreset();
+		if(grab != nil){
+			zwp_input_method_keyboard_grab_v2_release(grab);
+			grab = nil;
+		}
+	}
+}
+
+static void
+im_surrounding(void *data, struct zwp_input_method_v2 *m,
+	const char *text, uint32_t cursor, uint32_t anchor)
+{
+	(void)data;
+	(void)m;
+	(void)text;
+	(void)cursor;
+	(void)anchor;
+}
+
+static void
+im_textchange(void *data, struct zwp_input_method_v2 *m, uint32_t cause)
+{
+	(void)data;
+	(void)m;
+	(void)cause;
+}
+
+static void
+im_content(void *data, struct zwp_input_method_v2 *m,
+	uint32_t hint, uint32_t purpose)
+{
+	(void)data;
+	(void)m;
+	(void)hint;
+	(void)purpose;
+}
+
+static void
+im_done(void *data, struct zwp_input_method_v2 *m)
+{
+	(void)data;
+	(void)m;
+	imserial++;
+	if(pending && !active){
+		active = 1;
+		grab = zwp_input_method_v2_grab_keyboard(im);
+		if(grab != nil)
+			zwp_input_method_keyboard_grab_v2_add_listener(grab,
+				&grab_listener, nil);
+	}
+}
+
+static void
+im_unavail(void *data, struct zwp_input_method_v2 *m)
+{
+	(void)data;
+	(void)m;
+	fprint(2, "strans: wayland: input-method unavailable\n");
+}
+
+static const struct zwp_input_method_v2_listener im_listener = {
+	.activate = im_activate,
+	.deactivate = im_deactivate,
+	.surrounding_text = im_surrounding,
+	.text_change_cause = im_textchange,
+	.content_type = im_content,
+	.done = im_done,
+	.unavailable = im_unavail,
+};
+
+static void
+reg_global(void *data, struct wl_registry *r, uint32_t name,
+	const char *iface, uint32_t version)
+{
+	(void)data;
+	(void)version;
+	if(strcmp(iface, wl_seat_interface.name) == 0)
+		seat = wl_registry_bind(r, name, &wl_seat_interface, 5);
+	else if(strcmp(iface, zwp_input_method_manager_v2_interface.name) == 0)
+		immgr = wl_registry_bind(r, name,
+			&zwp_input_method_manager_v2_interface, 1);
+	else if(strcmp(iface,
+		zwp_virtual_keyboard_manager_v1_interface.name) == 0)
+		vkmgr = wl_registry_bind(r, name,
+			&zwp_virtual_keyboard_manager_v1_interface, 1);
+}
+
+static void
+reg_remove(void *data, struct wl_registry *r, uint32_t name)
+{
+	(void)data;
+	(void)r;
+	(void)name;
+}
+
+static const struct wl_registry_listener reg_listener = {
+	.global = reg_global,
+	.global_remove = reg_remove,
+};
+
+void
+waylandthread(void *_)
+{
+	struct wl_registry *reg;
+
+	(void)_;
+	threadsetname("wayland");
+	dpy = wl_display_connect(nil);
+	if(dpy == nil){
+		fprint(2, "strans: wayland: cannot connect to display\n");
+		return;
+	}
+	xkb = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
+	if(xkb == nil){
+		wl_display_disconnect(dpy);
+		dpy = nil;
+		return;
+	}
+	reg = wl_display_get_registry(dpy);
+	wl_registry_add_listener(reg, &reg_listener, nil);
+	wl_display_roundtrip(dpy);
+	if(seat == nil || immgr == nil || vkmgr == nil){
+		fprint(2,
+			"strans: wayland: compositor missing input-method-v2\n");
+		wl_display_disconnect(dpy);
+		dpy = nil;
+		return;
+	}
+	im = zwp_input_method_manager_v2_get_input_method(immgr, seat);
+	zwp_input_method_v2_add_listener(im, &im_listener, nil);
+	vk = zwp_virtual_keyboard_manager_v1_create_virtual_keyboard(vkmgr, seat);
+	while(wl_display_dispatch(dpy) != -1)
+		;
+}