Revert "Post 0.3 release modification"

This reverts commit 38c7bd7ee8.
Accidental commit intended for a testing repository.

CHANGELOG.md

@@ -1,98 +1,12 @@
 # Changelog
 
-* [0.9](#0.9)
+* [Unreleased](#unreleased)
-* [0.8](#0.8)
 * [0.7](#0.7)
 * [0.6](#0.6)
 * [0.5](#0.5)
 
 
-## 0.9
+## Unreleased
-
-### Added
-
-* Add axis mouse bindings ([#652][652])
-* Add support for the ext-data-control protocol ([#1184][1184])
-* Add support for the ext-foreign-toplevel-list protocol ([#1223][1223])
-* Add support for the ext-image-copy-capture and ext-image-capture-source protocols (screensharing) ([#1218][1218], [#1223][1223], [#1224][1224])
-* Add support for version 4 of the layer shell protocol (on-demand keyboard interactivity) ([#674][674])
-* Add support for wlr-text-input and wlr-input-method protocols (IME) ([#1219][1219])
-* Snap windows to edges when moving or resizing them ([#608][608])
-
-[1184]: https://codeberg.org/dwl/dwl/pulls/1184
-[1218]: https://codeberg.org/dwl/dwl/pulls/1218
-[1219]: https://codeberg.org/dwl/dwl/pulls/1219
-[1223]: https://codeberg.org/dwl/dwl/pulls/1223
-[1224]: https://codeberg.org/dwl/dwl/pulls/1224
-[608]: https://codeberg.org/dwl/dwl/pulls/608
-[652]: https://codeberg.org/dwl/dwl/pulls/652
-[674]: https://codeberg.org/dwl/dwl/pulls/674
-
-
-### Changed
-
-* Update wlroots to version 0.20 ([#1218][1218])
-* Use modifier-independent key symbols in config.h keybindings ([#1075][1075])
-
-[1075]: https://codeberg.org/dwl/dwl/pulls/1075
-[1218]: https://codeberg.org/dwl/dwl/pulls/1218
-
-
-### Fixed
-
-* Apply a minimum window size of 1x1 ([#1231][1231])
-* Close Xwayland submenus when changing tag or focus ([#1233][1233])
-* Don't make Firefox draw rounded corners when it is opened ([#d1ebf3c][d1ebf3c])
-* Don't send key release events to the wrong client ([#1108][1108])
-* Fix a crash when closing mpv ([#1220][1220])
-* Fix a crash when destroying an idle-inhibitor ([#1214][1214])
-* Fix choppy resizing on newer wlroots ([#1280][1280])
-* Fix the position of certain sub-menus in Xwayland applications ([#1232][1232])
-* Keep the focused border color on the regular client when opening a layer shell surface like wmenu ([#6013835][6013835])
-* Let keybindings focus and tag monitors above and below ([#5fd19fe][5fd19fe])
-* Preserve asleep disabled outputs in output config ([#1198][1198])
-* Respect size hints ([#4de32d2][4de32d2])
-* Set seat capabilities for virtual keyboards and pointers when there is no other input device ([#99cdc9a][99cdc9a])
-* Show popups in fullscreen Xwayland applications ([#1fe1b4e][1fe1b4e])
-* Show the correct cursor after moving and resizing ([#8ad2c92][8ad2c92])
-
-[1108]: https://codeberg.org/dwl/dwl/pulls/1108
-[1198]: https://codeberg.org/dwl/dwl/pulls/1198
-[1214]: https://codeberg.org/dwl/dwl/pulls/1214
-[1220]: https://codeberg.org/dwl/dwl/pulls/1220
-[1231]: https://codeberg.org/dwl/dwl/pulls/1231
-[1232]: https://codeberg.org/dwl/dwl/pulls/1232
-[1233]: https://codeberg.org/dwl/dwl/pulls/1233
-[1280]: https://codeberg.org/dwl/dwl/pulls/1280
-[1fe1b4e]: https://codeberg.org/dwl/dwl/commit/1fe1b4e
-[4de32d2]: https://codeberg.org/dwl/dwl/commit/4de32d2
-[5fd19fe]: https://codeberg.org/dwl/dwl/commit/5fd19fe
-[6013835]: https://codeberg.org/dwl/dwl/commit/6013835
-[8ad2c92]: https://codeberg.org/dwl/dwl/commit/8ad2c92
-[99cdc9a]: https://codeberg.org/dwl/dwl/commit/99cdc9a
-[d1ebf3c]: https://codeberg.org/dwl/dwl/commit/d1ebf3c
-
-
-### Contributors
-
-
-* A Frederick Christensen
-* Alex Denes
-* Andrea Chiavazza
-* Diego Viola
-* Guido Cella
-* Leonardo Hernández Hernández
-* Peter Hofmann
-* Siva Mahadevan
-* julmajustus
-* klim
-* save196
-* sewn
-* thanatos
-
-
-## 0.8
-
 ### Added
 
 * Support for the linux-drm-syncobj-v1 protocol ([wlroots!4715][wlroots!4715], [#685][685])
@@ -103,12 +17,15 @@
 [646]: https://codeberg.org/dwl/dwl/pulls/646
 
 
+### Changed
+### Deprecated
+### Removed
 ### Fixed
 
 * Crash when a client is created while all outputs are disabled.
 
-
+### Security
-Most changes in this release are not listed. See the commits for details.
+### Contributors
 
 
 ## 0.7

Makefile

@@ -5,7 +5,7 @@ include config.mk
 
 # flags for compiling
 DWLCPPFLAGS = -I. -DWLR_USE_UNSTABLE -D_POSIX_C_SOURCE=200809L \
-	-DVERSION=\"$(VERSION)\" $(XWAYLAND) $(CPPFLAGS)
+	-DVERSION=\"$(VERSION)\" $(XWAYLAND)
 DWLDEVCFLAGS = -g -Wpedantic -Wall -Wextra -Wdeclaration-after-statement \
 	-Wno-unused-parameter -Wshadow -Wunused-macros -Werror=strict-prototypes \
 	-Werror=implicit -Werror=return-type -Werror=incompatible-pointer-types \
@@ -17,11 +17,12 @@ DWLCFLAGS = `$(PKG_CONFIG) --cflags $(PKGS)` $(WLR_INCS) $(DWLCPPFLAGS) $(DWLDEV
 LDLIBS    = `$(PKG_CONFIG) --libs $(PKGS)` $(WLR_LIBS) -lm $(LIBS)
 
 all: dwl
-dwl: dwl.c client.h config.h ime.h util.h config.mk cursor-shape-v1-protocol.h \
+dwl: dwl.o util.o
-	ext-image-copy-capture-v1-protocol.h \
+	$(CC) dwl.o util.o $(DWLCFLAGS) $(LDFLAGS) $(LDLIBS) -o $@
+dwl.o: dwl.c client.h config.h config.mk cursor-shape-v1-protocol.h \
 	pointer-constraints-unstable-v1-protocol.h wlr-layer-shell-unstable-v1-protocol.h \
 	wlr-output-power-management-unstable-v1-protocol.h xdg-shell-protocol.h
-	$(CC) dwl.c $(DWLCFLAGS) $(LDFLAGS) $(LDLIBS) -o $@
+util.o: util.c util.h
 
 # wayland-scanner is a tool which generates C headers and rigging for Wayland
 # protocols, which are specified in XML. wlroots requires you to rig these up
@@ -32,9 +33,6 @@ WAYLAND_PROTOCOLS = `$(PKG_CONFIG) --variable=pkgdatadir wayland-protocols`
 cursor-shape-v1-protocol.h:
 	$(WAYLAND_SCANNER) enum-header \
 		$(WAYLAND_PROTOCOLS)/staging/cursor-shape/cursor-shape-v1.xml $@
-ext-image-copy-capture-v1-protocol.h:
-	$(WAYLAND_SCANNER) enum-header \
-		$(WAYLAND_PROTOCOLS)/staging/ext-image-copy-capture/ext-image-copy-capture-v1.xml $@
 pointer-constraints-unstable-v1-protocol.h:
 	$(WAYLAND_SCANNER) enum-header \
 		$(WAYLAND_PROTOCOLS)/unstable/pointer-constraints/pointer-constraints-unstable-v1.xml $@
@@ -56,7 +54,7 @@ clean:
 dist: clean
 	mkdir -p dwl-$(VERSION)
 	cp -R LICENSE* Makefile CHANGELOG.md README.md client.h config.def.h \
-		config.mk protocols dwl.1 dwl.c ime.h util.h dwl.desktop \
+		config.mk protocols dwl.1 dwl.c util.c util.h dwl.desktop \
 		dwl-$(VERSION)
 	tar -caf dwl-$(VERSION).tar.gz dwl-$(VERSION)
 	rm -rf dwl-$(VERSION)
@@ -75,3 +73,7 @@ install: dwl
 uninstall:
 	rm -f $(DESTDIR)$(PREFIX)/bin/dwl $(DESTDIR)$(MANDIR)/man1/dwl.1 \
 		$(DESTDIR)$(DATADIR)/wayland-sessions/dwl.desktop
+
+.SUFFIXES: .c .o
+.c.o:
+	$(CC) $(CPPFLAGS) $(DWLCFLAGS) -o $@ -c $<

README.md

@@ -10,7 +10,7 @@ primarily in terms of functionality, and secondarily in terms of
 philosophy. Like [dwm], dwl is:
 
 - Easy to understand, hack on, and extend with patches
-- One C source file configurable via `config.h`
+- One C source file (or a very small number) configurable via `config.h`
 - Tied to as few external dependencies as possible
 
 ## Getting Started:
@@ -153,6 +153,7 @@ given the base on which it is built. Implemented default features are:
 - Support screen lockers via ext-session-lock-v1 protocol
 - Various Wayland protocols
 - XWayland support as provided by wlroots (can be enabled in `config.mk`)
+- Zero flickering - Wayland users naturally expect that "every frame is perfect"
 - Layer shell popups (used by Waybar)
 - Damage tracking provided by scenegraph API
 
@@ -165,6 +166,9 @@ indiscriminately. We will try to keep the code as small as possible.
 Features under consideration (possibly as patches) are:
 
 - Protocols made trivial by wlroots
+- Implement the text-input and input-method protocols to support IME once ibus
+  implements input-method v2 (see https://github.com/ibus/ibus/pull/2256 and
+  https://codeberg.org/dwl/dwl/pulls/235)
 
 Feature *non-goals* for the main codebase include:
 
@@ -189,10 +193,6 @@ inspiration, and to the various contributors to the project, including:
   and for helping to keep the project running
 - Stivvo for output management and fullscreen support, and patch maintenance
 
-Also, thanks to our current lead developers:
-
-- @thanatos
-- @guidocella
 
 [wlroots]: https://gitlab.freedesktop.org/wlroots
 [dwm]: https://dwm.suckless.org/

client.h

@@ -15,32 +15,6 @@ client_is_x11(Client *c)
 	return 0;
 }
 
-static inline void
-client_get_size_hints(Client *c, struct wlr_box *max, struct wlr_box *min)
-{
-	struct wlr_xdg_toplevel_state *state;
-
-#ifdef XWAYLAND
-	if (client_is_x11(c)) {
-		xcb_size_hints_t *size_hints = c->surface.xwayland->size_hints;
-		if (size_hints) {
-			max->width = size_hints->max_width;
-			max->height = size_hints->max_height;
-			min->width = size_hints->min_width;
-			min->height = size_hints->min_height;
-		}
-		return;
-	}
-#endif
-
-	state = &c->surface.xdg->toplevel->current;
-	max->width = state->max_width;
-	max->height = state->max_height;
-	min->width = state->min_width;
-	min->height = state->min_height;
-}
-
-
 static inline struct wlr_surface *
 client_surface(Client *c)
 {
@@ -232,12 +206,13 @@ client_get_title(Client *c)
 static inline int
 client_is_float_type(Client *c)
 {
-	struct wlr_box min = {0}, max = {0};
+	struct wlr_xdg_toplevel *toplevel;
-	client_get_size_hints(c, &max, &min);
+	struct wlr_xdg_toplevel_state state;
 
 #ifdef XWAYLAND
 	if (client_is_x11(c)) {
 		struct wlr_xwayland_surface *surface = c->surface.xwayland;
+		xcb_size_hints_t *size_hints = surface->size_hints;
 		if (surface->modal)
 			return 1;
 
@@ -248,13 +223,17 @@ client_is_float_type(Client *c)
 			return 1;
 		}
 
-		return min.width > 0 && min.height > 0 &&
+		return size_hints && size_hints->min_width > 0 && size_hints->min_height > 0
-			(min.width == max.width || min.height == max.height);
+			&& (size_hints->max_width == size_hints->min_width
+				|| size_hints->max_height == size_hints->min_height);
 	}
 #endif
 
-	return c->surface.xdg->toplevel->parent || (min.width > 0 && min.height > 0 &&
+	toplevel = c->surface.xdg->toplevel;
-			(min.width == max.width || min.height == max.height));
+	state = toplevel->current;
+	return toplevel->parent || (state.min_width != 0 && state.min_height != 0
+		&& (state.min_width == state.max_width
+			|| state.min_height == state.max_height));
 }
 
 static inline int
@@ -312,18 +291,11 @@ client_is_unmanaged(Client *c)
 static inline void
 client_notify_enter(struct wlr_surface *s, struct wlr_keyboard *kb)
 {
-	uint32_t filtered[WLR_KEYBOARD_KEYS_CAP];
+	if (kb)
-	size_t size = 0;
+		wlr_seat_keyboard_notify_enter(seat, s, kb->keycodes,
-	if (!kb) {
+				kb->num_keycodes, &kb->modifiers);
+	else
 		wlr_seat_keyboard_notify_enter(seat, s, NULL, 0, NULL);
-		return;
-	}
-	for (size_t i = 0; i < kb->num_keycodes; i++) {
-		uint32_t key = kb->keycodes[i];
-		if (!consumed[key])
-			filtered[size++] = key;
-	}
-	wlr_seat_keyboard_notify_enter(seat, s, filtered, size, &kb->modifiers);
 }
 
 static inline void
@@ -365,19 +337,20 @@ client_set_scale(struct wlr_surface *s, float scale)
 	wlr_surface_set_preferred_buffer_scale(s, (int32_t)ceilf(scale));
 }
 
-static inline void
+static inline uint32_t
 client_set_size(Client *c, uint32_t width, uint32_t height)
 {
 #ifdef XWAYLAND
 	if (client_is_x11(c)) {
 		wlr_xwayland_surface_configure(c->surface.xwayland,
 				c->geom.x + c->bw, c->geom.y + c->bw, width, height);
-		return;
+		return 0;
 	}
 #endif
-	if ((int32_t)width != c->surface.xdg->toplevel->current.width
+	if ((int32_t)width == c->surface.xdg->toplevel->current.width
-			|| (int32_t)height != c->surface.xdg->toplevel->current.height)
+			&& (int32_t)height == c->surface.xdg->toplevel->current.height)
-		wlr_xdg_toplevel_set_size(c->surface.xdg->toplevel, (int32_t)width, (int32_t)height);
+		return 0;
+	return wlr_xdg_toplevel_set_size(c->surface.xdg->toplevel, (int32_t)width, (int32_t)height);
 }
 
 static inline void

config.def.h

@@ -7,7 +7,6 @@
 static const int sloppyfocus               = 1;  /* focus follows mouse */
 static const int bypass_surface_visibility = 0;  /* 1 means idle inhibitors will disable idle tracking even if it's surface isn't visible  */
 static const unsigned int borderpx         = 1;  /* border pixel of windows */
-static const unsigned int snap             = 32; /* snap pixel */
 static const float rootcolor[]             = COLOR(0x222222ff);
 static const float bordercolor[]           = COLOR(0x444444ff);
 static const float focuscolor[]            = COLOR(0x005577ff);
@@ -106,11 +105,11 @@ static const enum libinput_config_tap_button_map button_map = LIBINPUT_CONFIG_TA
 /* If you want to use the windows key for MODKEY, use WLR_MODIFIER_LOGO */
 #define MODKEY WLR_MODIFIER_ALT
 
-#define TAGKEYS(KEY,TAG) \
+#define TAGKEYS(KEY,SKEY,TAG) \
 	{ MODKEY,                    KEY,            view,            {.ui = 1 << TAG} }, \
 	{ MODKEY|WLR_MODIFIER_CTRL,  KEY,            toggleview,      {.ui = 1 << TAG} }, \
-	{ MODKEY|WLR_MODIFIER_SHIFT, KEY,            tag,             {.ui = 1 << TAG} }, \
+	{ MODKEY|WLR_MODIFIER_SHIFT, SKEY,           tag,             {.ui = 1 << TAG} }, \
-	{ MODKEY|WLR_MODIFIER_CTRL|WLR_MODIFIER_SHIFT,KEY,toggletag,  {.ui = 1 << TAG} }
+	{ MODKEY|WLR_MODIFIER_CTRL|WLR_MODIFIER_SHIFT,SKEY,toggletag, {.ui = 1 << TAG} }
 
 /* helper for spawning shell commands in the pre dwm-5.0 fashion */
 #define SHCMD(cmd) { .v = (const char*[]){ "/bin/sh", "-c", cmd, NULL } }
@@ -120,6 +119,7 @@ static const char *termcmd[] = { "foot", NULL };
 static const char *menucmd[] = { "wmenu-run", NULL };
 
 static const Key keys[] = {
+	/* Note that Shift changes certain key codes: 2 -> at, etc. */
 	/* modifier                  key                  function          argument */
 	{ MODKEY,                    XKB_KEY_p,           spawn,            {.v = menucmd} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_Return,      spawn,            {.v = termcmd} },
@@ -139,28 +139,28 @@ static const Key keys[] = {
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_space,       togglefloating,   {0} },
 	{ MODKEY,                    XKB_KEY_e,           togglefullscreen, {0} },
 	{ MODKEY,                    XKB_KEY_0,           view,             {.ui = ~0} },
-	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_0,           tag,              {.ui = ~0} },
+	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_parenright,  tag,              {.ui = ~0} },
 	{ MODKEY,                    XKB_KEY_comma,       focusmon,         {.i = WLR_DIRECTION_LEFT} },
 	{ MODKEY,                    XKB_KEY_period,      focusmon,         {.i = WLR_DIRECTION_RIGHT} },
-	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_comma,       tagmon,           {.i = WLR_DIRECTION_LEFT} },
+	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_less,        tagmon,           {.i = WLR_DIRECTION_LEFT} },
-	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_period,      tagmon,           {.i = WLR_DIRECTION_RIGHT} },
+	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_greater,     tagmon,           {.i = WLR_DIRECTION_RIGHT} },
-	TAGKEYS(                     XKB_KEY_1,           0),
+	TAGKEYS(          XKB_KEY_1, XKB_KEY_exclam,                        0),
-	TAGKEYS(                     XKB_KEY_2,           1),
+	TAGKEYS(          XKB_KEY_2, XKB_KEY_at,                            1),
-	TAGKEYS(                     XKB_KEY_3,           2),
+	TAGKEYS(          XKB_KEY_3, XKB_KEY_numbersign,                    2),
-	TAGKEYS(                     XKB_KEY_4,           3),
+	TAGKEYS(          XKB_KEY_4, XKB_KEY_dollar,                        3),
-	TAGKEYS(                     XKB_KEY_5,           4),
+	TAGKEYS(          XKB_KEY_5, XKB_KEY_percent,                       4),
-	TAGKEYS(                     XKB_KEY_6,           5),
+	TAGKEYS(          XKB_KEY_6, XKB_KEY_asciicircum,                   5),
-	TAGKEYS(                     XKB_KEY_7,           6),
+	TAGKEYS(          XKB_KEY_7, XKB_KEY_ampersand,                     6),
-	TAGKEYS(                     XKB_KEY_8,           7),
+	TAGKEYS(          XKB_KEY_8, XKB_KEY_asterisk,                      7),
-	TAGKEYS(                     XKB_KEY_9,           8),
+	TAGKEYS(          XKB_KEY_9, XKB_KEY_parenleft,                     8),
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_q,           quit,             {0} },
 
 	/* Ctrl-Alt-Backspace and Ctrl-Alt-Fx used to be handled by X server */
-	{ WLR_MODIFIER_CTRL|WLR_MODIFIER_ALT,XKB_KEY_BackSpace, quit, {0} },
+	{ WLR_MODIFIER_CTRL|WLR_MODIFIER_ALT,XKB_KEY_Terminate_Server, quit, {0} },
 	/* Ctrl-Alt-Fx is used to switch to another VT, if you don't know what a VT is
 	 * do not remove them.
 	 */
-#define CHVT(n) { WLR_MODIFIER_CTRL|WLR_MODIFIER_ALT,XKB_KEY_F##n, chvt, {.ui = (n)} }
+#define CHVT(n) { WLR_MODIFIER_CTRL|WLR_MODIFIER_ALT,XKB_KEY_XF86Switch_VT_##n, chvt, {.ui = (n)} }
 	CHVT(1), CHVT(2), CHVT(3), CHVT(4), CHVT(5), CHVT(6),
 	CHVT(7), CHVT(8), CHVT(9), CHVT(10), CHVT(11), CHVT(12),
 };
@@ -170,8 +170,3 @@ static const Button buttons[] = {
 	{ MODKEY, BTN_MIDDLE, togglefloating, {0} },
 	{ MODKEY, BTN_RIGHT,  moveresize,     {.ui = CurResize} },
 };
-
-static const Axis axes[] = {
-	{ MODKEY, AxisUp,   spawn, SHCMD("volume-up_EXAMPLE") },
-	{ MODKEY, AxisDown, spawn, SHCMD("volume-down_EXAMPLE") },
-};

config.mk

@@ -1,4 +1,4 @@
-_VERSION = 0.10-dev
+_VERSION = 0.9-dev
 VERSION  = `git describe --tags --dirty 2>/dev/null || echo $(_VERSION)`
 
 PKG_CONFIG = pkg-config
@@ -17,12 +17,12 @@ WLR_LIBS = `$(PKG_CONFIG) --libs wlroots-0.20`
 #WLR_INCS = -I/usr/include/pixman-1 -I/usr/include/elogind -I/usr/include/libdrm \
 #	-I$(PWD)/wlroots/include
 # Set -rpath to avoid using the wrong library.
-#WLR_LIBS = -Wl,-rpath,$(PWD)/wlroots/build -L$(PWD)/wlroots/build -lwlroots-0.20
+#WLR_LIBS = -Wl,-rpath,$(PWD)/wlroots/build -L$(PWD)/wlroots/build -lwlroots-0.19
 
-# Assuming you ran "meson setup --prefix ${PWD}/0.20 build && ninja -C build install"
+# Assuming you ran "meson setup --prefix ${PWD}/0.19 build && ninja -C build install"
 #WLR_INCS = -I/usr/include/pixman-1 -I/usr/include/elogind -I/usr/include/libdrm \
-#	-I$(PWD)/wlroots/0.20/include/wlroots-0.20
+#	-I$(PWD)/wlroots/0.19/include/wlroots-0.19
-#WLR_LIBS = -Wl,-rpath,$(PWD)/wlroots/0.20/lib64 -L$(PWD)/wlroots/0.20/lib64 -lwlroots-0.20
+#WLR_LIBS = -Wl,-rpath,$(PWD)/wlroots/0.19/lib64 -L$(PWD)/wlroots/0.19/lib64 -lwlroots-0.19
 
 XWAYLAND =
 XLIBS =

ime.h

@@ -1,639 +0,0 @@
-#include <wlr/types/wlr_input_method_v2.h>
-#include <wlr/types/wlr_text_input_v3.h>
-
-struct input_method_relay {
-	struct wl_list text_inputs; /* struct text_input.link */
-	struct wlr_input_method_v2 *input_method;
-
-	struct wlr_surface *focused_surface;
-	struct text_input *active_text_input;
-
-	struct wl_list popups; /* input_method_popup.link */
-	struct wlr_scene_tree *popup_tree;
-
-	struct wl_listener new_text_input;
-	struct wl_listener new_input_method;
-
-	struct wl_listener input_method_commit;
-	struct wl_listener input_method_grab_keyboard;
-	struct wl_listener input_method_destroy;
-	struct wl_listener input_method_new_popup_surface;
-
-	struct wl_listener keyboard_grab_destroy;
-	struct wl_listener focused_surface_destroy;
-};
-
-struct input_method_popup {
-	struct wlr_input_popup_surface_v2 *popup_surface;
-	struct wlr_scene_tree *tree;
-	struct wlr_scene_tree *scene_surface;
-	struct input_method_relay *relay;
-	struct wl_list link; /* input_method_relay.popups */
-
-	struct wl_listener destroy;
-	struct wl_listener commit;
-};
-
-struct text_input {
-	struct input_method_relay *relay;
-	struct wlr_text_input_v3 *input;
-	struct wl_list link;
-
-	struct wl_listener enable;
-	struct wl_listener commit;
-	struct wl_listener disable;
-	struct wl_listener destroy;
-};
-
-struct wlr_input_method_manager_v2 *input_method_manager;
-struct wlr_text_input_manager_v3 *text_input_manager;
-struct input_method_relay *input_method_relay;
-
-/* functions used in dwl.c */
-static int input_method_keyboard_grab_forward_key(
-		KeyboardGroup *keyboard, struct wlr_keyboard_key_event *event);
-static int input_method_keyboard_grab_forward_modifiers(KeyboardGroup *keyboard);
-static struct input_method_relay *input_method_relay_create(void);
-static void input_method_relay_finish(struct input_method_relay *relay);
-static void input_method_relay_set_focus(struct input_method_relay *relay,
-		struct wlr_surface *surface);
-
-/* internal functions */
-static struct text_input *get_active_text_input(struct input_method_relay *relay);
-static struct wlr_input_method_keyboard_grab_v2 *get_keyboard_grab(KeyboardGroup *keyboard);
-static int keyboard_is_emulated_by_input_method(struct wlr_keyboard *keyboard,
-		struct wlr_input_method_v2 *input_method);
-static void handle_focused_surface_destroy(struct wl_listener *listener, void *data);
-static void handle_input_method_commit(struct wl_listener *listener, void *data);
-static void handle_input_method_destroy(struct wl_listener *listener, void *data);
-static void handle_input_method_grab_keyboard(struct wl_listener *listener, void *data);
-static void handle_input_method_new_popup_surface(struct wl_listener *listener, void *data);
-static void handle_keyboard_grab_destroy(struct wl_listener *listener, void *data);
-static void handle_new_input_method(struct wl_listener *listener, void *data);
-static void handle_new_text_input(struct wl_listener *listener, void *data);
-static void handle_popup_surface_commit(struct wl_listener *listener, void *data);
-static void handle_popup_surface_destroy(struct wl_listener *listener, void *data);
-static void handle_text_input_commit(struct wl_listener *listener, void *data);
-static void handle_text_input_destroy(struct wl_listener *listener, void *data);
-static void handle_text_input_disable(struct wl_listener *listener, void *data);
-static void handle_text_input_enable(struct wl_listener *listener, void *data);
-static Monitor *output_from_wlr_output(struct wlr_output *wlr_output);
-static Monitor *output_nearest_to(int lx, int ly);
-static void send_state_to_input_method(struct input_method_relay *relay);
-static void update_active_text_input(struct input_method_relay *relay);
-static void update_popup_position(struct input_method_popup *popup);
-static void update_popups_position(struct input_method_relay *relay);
-static void update_text_inputs_focused_surface(struct input_method_relay *relay);
-
-Monitor *
-output_from_wlr_output(struct wlr_output *wlr_output)
-{
-	Monitor *m = NULL;
-	wl_list_for_each(m, &mons, link) {
-		if (m->wlr_output == wlr_output)
-			return m;
-	}
-	return NULL;
-}
-
-Monitor *
-output_nearest_to(int lx, int ly)
-{
-	double closest_x, closest_y;
-	wlr_output_layout_closest_point(output_layout, NULL, lx, ly, &closest_x,
-			&closest_y);
-
-	return output_from_wlr_output(
-			wlr_output_layout_output_at(output_layout, closest_x, closest_y));
-}
-
-int
-keyboard_is_emulated_by_input_method(struct wlr_keyboard *keyboard,
-		struct wlr_input_method_v2 *input_method)
-{
-	struct wlr_virtual_keyboard_v1 *virtual_keyboard;
-
-	if (!keyboard || !input_method)
-		return 0;
-
-	virtual_keyboard = wlr_input_device_get_virtual_keyboard(&keyboard->base);
-
-	return virtual_keyboard &&
-			wl_resource_get_client(virtual_keyboard->resource) ==
-				wl_resource_get_client(input_method->resource);
-}
-
-struct wlr_input_method_keyboard_grab_v2 *
-get_keyboard_grab(KeyboardGroup *keyboard)
-{
-	struct wlr_input_method_v2 *input_method = input_method_relay->input_method;
-
-	if (!input_method || !input_method->keyboard_grab || keyboard != kb_group ||
-			keyboard_is_emulated_by_input_method(keyboard->virtual_keyboard,
-				input_method))
-		return NULL;
-
-	return input_method->keyboard_grab;
-}
-
-int
-input_method_keyboard_grab_forward_modifiers(KeyboardGroup *keyboard)
-{
-	struct wlr_input_method_keyboard_grab_v2 *keyboard_grab =
-		get_keyboard_grab(keyboard);
-
-	struct wlr_keyboard_modifiers *modifiers =
-		&keyboard->wlr_group->keyboard.modifiers;
-
-	if (keyboard_grab) {
-		wlr_input_method_keyboard_grab_v2_set_keyboard(
-				keyboard_grab, &keyboard->wlr_group->keyboard);
-		wlr_input_method_keyboard_grab_v2_send_modifiers(keyboard_grab, modifiers);
-		return 1;
-	} else {
-		return 0;
-	}
-}
-
-int
-input_method_keyboard_grab_forward_key(
-		KeyboardGroup *keyboard, struct wlr_keyboard_key_event *event)
-{
-	struct wlr_input_method_keyboard_grab_v2 *keyboard_grab =
-		get_keyboard_grab(keyboard);
-	if (keyboard_grab) {
-		wlr_input_method_keyboard_grab_v2_set_keyboard(
-				keyboard_grab, &keyboard->wlr_group->keyboard);
-		wlr_input_method_keyboard_grab_v2_send_key(keyboard_grab, event->time_msec,
-				event->keycode, event->state);
-		return 1;
-	} else {
-		return 0;
-	}
-}
-
-struct text_input *
-get_active_text_input(struct input_method_relay *relay)
-{
-	struct text_input *text_input;
-
-	if (!relay->input_method)
-		return NULL;
-
-	wl_list_for_each(text_input, &relay->text_inputs, link) {
-		if (text_input->input->focused_surface &&
-				text_input->input->current_enabled)
-			return text_input;
-	}
-	return NULL;
-}
-
-void
-update_active_text_input(struct input_method_relay *relay)
-{
-	struct text_input *active_text_input = get_active_text_input(relay);
-
-	if (relay->input_method && relay->active_text_input != active_text_input) {
-		if (active_text_input)
-			wlr_input_method_v2_send_activate(relay->input_method);
-		else
-			wlr_input_method_v2_send_deactivate(relay->input_method);
-		wlr_input_method_v2_send_done(relay->input_method);
-	}
-
-	relay->active_text_input = active_text_input;
-}
-
-void
-update_text_inputs_focused_surface(struct input_method_relay *relay)
-{
-	struct text_input *text_input;
-	wl_list_for_each(text_input, &relay->text_inputs, link) {
-		struct wlr_text_input_v3 *input = text_input->input;
-
-		struct wlr_surface *new_focused_surface;
-		if (relay->input_method && relay->focused_surface &&
-			wl_resource_get_client(input->resource) ==
-				wl_resource_get_client(relay->focused_surface->resource)) {
-			new_focused_surface = relay->focused_surface;
-		} else {
-			new_focused_surface = NULL;
-		}
-
-		if (input->focused_surface == new_focused_surface)
-			continue;
-		if (input->focused_surface)
-			wlr_text_input_v3_send_leave(input);
-		if (new_focused_surface)
-			wlr_text_input_v3_send_enter(input, new_focused_surface);
-	}
-}
-
-void
-update_popup_position(struct input_method_popup *popup)
-{
-	struct input_method_relay *relay = popup->relay;
-	struct text_input *text_input = relay->active_text_input;
-	struct wlr_box cursor_rect;
-	struct wlr_xdg_surface *xdg_surface;
-	struct wlr_layer_surface_v1 *layer_surface;
-	struct wlr_scene_tree *tree;
-	int lx, ly;
-	Monitor *output;
-	struct wlr_box output_box;
-	struct wlr_xdg_positioner_rules positioner_rules;
-	struct wlr_box popup_box;
-
-	if (!text_input || !relay->focused_surface ||
-			!popup->popup_surface->surface->mapped)
-		return;
-
-	xdg_surface = wlr_xdg_surface_try_from_wlr_surface(relay->focused_surface);
-	layer_surface = wlr_layer_surface_v1_try_from_wlr_surface(relay->focused_surface);
-
-	if ((text_input->input->current.features &
-				WLR_TEXT_INPUT_V3_FEATURE_CURSOR_RECTANGLE) &&
-			(xdg_surface || layer_surface)) {
-		cursor_rect = text_input->input->current.cursor_rectangle;
-
-		tree = relay->focused_surface->data;
-		wlr_scene_node_coords(&tree->node, &lx, &ly);
-		cursor_rect.x += lx;
-		cursor_rect.y += ly;
-
-		if (xdg_surface) {
-			cursor_rect.x -= xdg_surface->geometry.x;
-			cursor_rect.y -= xdg_surface->geometry.y;
-		}
-	} else {
-		cursor_rect = (struct wlr_box){0};
-	}
-
-	output = output_nearest_to(cursor_rect.x, cursor_rect.y);
-	if (!output || !output->wlr_output->enabled)
-		return;
-
-	wlr_output_layout_get_box(output_layout, output->wlr_output, &output_box);
-
-	positioner_rules = (struct wlr_xdg_positioner_rules) {
-		.anchor_rect = cursor_rect,
-		.anchor = XDG_POSITIONER_ANCHOR_BOTTOM_LEFT,
-		.gravity = XDG_POSITIONER_GRAVITY_BOTTOM_RIGHT,
-		.size =
-		{
-			.width = popup->popup_surface->surface->current.width,
-			.height = popup->popup_surface->surface->current.height,
-		},
-		.constraint_adjustment = XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_FLIP_Y |
-			XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_SLIDE_X,
-	};
-
-	wlr_xdg_positioner_rules_get_geometry(&positioner_rules, &popup_box);
-	wlr_xdg_positioner_rules_unconstrain_box(&positioner_rules, &output_box, &popup_box);
-
-	wlr_scene_node_set_position(&popup->tree->node, popup_box.x, popup_box.y);
-	wlr_scene_node_raise_to_top(&relay->popup_tree->node);
-
-	wlr_input_popup_surface_v2_send_text_input_rectangle(
-			popup->popup_surface, &(struct wlr_box){
-			.x = cursor_rect.x - popup_box.x,
-			.y = cursor_rect.y - popup_box.y,
-			.width = cursor_rect.width,
-			.height = cursor_rect.height,
-			});
-}
-
-void
-update_popups_position(struct input_method_relay *relay)
-{
-	struct input_method_popup *popup;
-	wl_list_for_each(popup, &relay->popups, link) {
-		update_popup_position(popup);
-	}
-}
-
-void
-handle_input_method_commit(struct wl_listener *listener,
-		void *data)
-{
-	struct input_method_relay *relay =
-		wl_container_of(listener, relay, input_method_commit);
-	struct wlr_input_method_v2 *input_method = relay->input_method;
-	struct text_input *text_input = relay->active_text_input;
-
-	if (!text_input)
-		return;
-
-	if (input_method->current.preedit.text) {
-		wlr_text_input_v3_send_preedit_string(text_input->input,
-				input_method->current.preedit.text,
-				input_method->current.preedit.cursor_begin,
-				input_method->current.preedit.cursor_end);
-	}
-	if (input_method->current.commit_text) {
-		wlr_text_input_v3_send_commit_string(text_input->input,
-				input_method->current.commit_text);
-	}
-	if (input_method->current.delete.before_length ||
-			input_method->current.delete.after_length) {
-		wlr_text_input_v3_send_delete_surrounding_text(text_input->input,
-				input_method->current.delete.before_length,
-				input_method->current.delete.after_length);
-	}
-	wlr_text_input_v3_send_done(text_input->input);
-}
-
-void
-handle_keyboard_grab_destroy(struct wl_listener *listener,
-		void *data)
-{
-	struct input_method_relay *relay =
-		wl_container_of(listener, relay, keyboard_grab_destroy);
-	struct wlr_input_method_keyboard_grab_v2 *keyboard_grab =
-		relay->input_method->keyboard_grab;
-	wl_list_remove(&relay->keyboard_grab_destroy.link);
-
-	if (keyboard_grab->keyboard) {
-		/* Send modifier state to original client */
-		wlr_seat_keyboard_notify_modifiers(keyboard_grab->input_method->seat,
-				&keyboard_grab->keyboard->modifiers);
-	}
-}
-
-void
-handle_input_method_grab_keyboard(struct wl_listener *listener,
-		void *data)
-{
-	struct input_method_relay *relay =
-		wl_container_of(listener, relay, input_method_grab_keyboard);
-	struct wlr_input_method_keyboard_grab_v2 *keyboard_grab = data;
-
-	struct wlr_keyboard *active_keyboard = &kb_group->wlr_group->keyboard;
-
-	if (!keyboard_is_emulated_by_input_method(active_keyboard,
-				relay->input_method)) {
-		/* Send modifier state to grab */
-		wlr_input_method_keyboard_grab_v2_set_keyboard(keyboard_grab,
-				active_keyboard);
-	}
-
-	relay->keyboard_grab_destroy.notify = handle_keyboard_grab_destroy;
-	wl_signal_add(&keyboard_grab->events.destroy, &relay->keyboard_grab_destroy);
-}
-
-void
-handle_input_method_destroy(struct wl_listener *listener,
-		void *data)
-{
-	struct input_method_relay *relay =
-		wl_container_of(listener, relay, input_method_destroy);
-	wl_list_remove(&relay->input_method_commit.link);
-	wl_list_remove(&relay->input_method_grab_keyboard.link);
-	wl_list_remove(&relay->input_method_new_popup_surface.link);
-	wl_list_remove(&relay->input_method_destroy.link);
-	relay->input_method = NULL;
-
-	update_text_inputs_focused_surface(relay);
-	update_active_text_input(relay);
-}
-
-void
-handle_popup_surface_destroy(struct wl_listener *listener,
-		void *data)
-{
-	struct input_method_popup *popup = wl_container_of(listener, popup, destroy);
-	wlr_scene_node_destroy(&popup->tree->node);
-	wl_list_remove(&popup->destroy.link);
-	wl_list_remove(&popup->commit.link);
-	wl_list_remove(&popup->link);
-	free(popup);
-}
-
-void
-handle_popup_surface_commit(struct wl_listener *listener,
-		void *data)
-{
-	struct input_method_popup *popup = wl_container_of(listener, popup, commit);
-	update_popup_position(popup);
-}
-
-void
-handle_input_method_new_popup_surface(struct wl_listener *listener,
-		void *data)
-{
-	struct input_method_relay *relay =
-		wl_container_of(listener, relay, input_method_new_popup_surface);
-
-	struct input_method_popup *popup = ecalloc(1, sizeof(*popup));
-	popup->popup_surface = data;
-	popup->relay = relay;
-
-	popup->destroy.notify = handle_popup_surface_destroy;
-	wl_signal_add(&popup->popup_surface->events.destroy, &popup->destroy);
-
-	popup->commit.notify = handle_popup_surface_commit;
-	wl_signal_add(&popup->popup_surface->surface->events.commit, &popup->commit);
-
-	popup->tree = wlr_scene_tree_create(layers[LyrIMPopup]);
-	popup->scene_surface = wlr_scene_subsurface_tree_create(
-			popup->tree, popup->popup_surface->surface);
-	popup->scene_surface->node.data = popup;
-
-	wl_list_insert(&relay->popups, &popup->link);
-
-	update_popup_position(popup);
-}
-
-void
-handle_new_input_method(struct wl_listener *listener, void *data)
-{
-	struct input_method_relay *relay =
-		wl_container_of(listener, relay, new_input_method);
-	struct wlr_input_method_v2 *input_method = data;
-	if (seat != input_method->seat)
-		return;
-
-	if (relay->input_method) {
-		wlr_input_method_v2_send_unavailable(input_method);
-		return;
-	}
-
-	relay->input_method = input_method;
-
-	relay->input_method_commit.notify = handle_input_method_commit;
-	wl_signal_add(&relay->input_method->events.commit,
-			&relay->input_method_commit);
-
-	relay->input_method_grab_keyboard.notify = handle_input_method_grab_keyboard;
-	wl_signal_add(&relay->input_method->events.grab_keyboard,
-			&relay->input_method_grab_keyboard);
-
-	relay->input_method_destroy.notify = handle_input_method_destroy;
-	wl_signal_add(&relay->input_method->events.destroy,
-			&relay->input_method_destroy);
-
-	relay->input_method_new_popup_surface.notify =
-		handle_input_method_new_popup_surface;
-	wl_signal_add(&relay->input_method->events.new_popup_surface,
-			&relay->input_method_new_popup_surface);
-
-	update_text_inputs_focused_surface(relay);
-	update_active_text_input(relay);
-}
-
-void
-send_state_to_input_method(struct input_method_relay *relay)
-{
-	struct wlr_input_method_v2 *input_method = relay->input_method;
-	struct wlr_text_input_v3 *input = relay->active_text_input->input;
-
-	if (input->active_features & WLR_TEXT_INPUT_V3_FEATURE_SURROUNDING_TEXT) {
-		wlr_input_method_v2_send_surrounding_text(input_method,
-				input->current.surrounding.text,
-				input->current.surrounding.cursor,
-				input->current.surrounding.anchor);
-	}
-	wlr_input_method_v2_send_text_change_cause(input_method,
-			input->current.text_change_cause);
-	if (input->active_features & WLR_TEXT_INPUT_V3_FEATURE_CONTENT_TYPE) {
-		wlr_input_method_v2_send_content_type(input_method,
-				input->current.content_type.hint,
-				input->current.content_type.purpose);
-	}
-	wlr_input_method_v2_send_done(input_method);
-}
-
-void
-handle_text_input_enable(struct wl_listener *listener, void *data)
-{
-	struct text_input *text_input = wl_container_of(listener, text_input, enable);
-	struct input_method_relay *relay = text_input->relay;
-
-	update_active_text_input(relay);
-	if (relay->active_text_input == text_input) {
-		update_popups_position(relay);
-		send_state_to_input_method(relay);
-	}
-	wlr_text_input_v3_send_done(text_input->input);
-}
-
-void
-handle_text_input_disable(struct wl_listener *listener,
-		void *data)
-{
-	struct text_input *text_input =
-		wl_container_of(listener, text_input, disable);
-	update_active_text_input(text_input->relay);
-}
-
-void
-handle_text_input_commit(struct wl_listener *listener, void *data)
-{
-	struct text_input *text_input = wl_container_of(listener, text_input, commit);
-	struct input_method_relay *relay = text_input->relay;
-
-	if (relay->active_text_input == text_input) {
-		update_popups_position(relay);
-		send_state_to_input_method(relay);
-	}
-}
-
-void
-handle_text_input_destroy(struct wl_listener *listener,
-		void *data)
-{
-	struct text_input *text_input =
-		wl_container_of(listener, text_input, destroy);
-	wl_list_remove(&text_input->enable.link);
-	wl_list_remove(&text_input->disable.link);
-	wl_list_remove(&text_input->commit.link);
-	wl_list_remove(&text_input->destroy.link);
-	wl_list_remove(&text_input->link);
-	update_active_text_input(text_input->relay);
-	free(text_input);
-}
-
-void
-handle_new_text_input(struct wl_listener *listener, void *data)
-{
-	struct input_method_relay *relay =
-		wl_container_of(listener, relay, new_text_input);
-	struct wlr_text_input_v3 *wlr_text_input = data;
-	struct text_input *text_input;
-
-	if (seat != wlr_text_input->seat)
-		return;
-
-	text_input = ecalloc(1, sizeof(*text_input));
-	text_input->input = wlr_text_input;
-	text_input->relay = relay;
-	wl_list_insert(&relay->text_inputs, &text_input->link);
-
-	text_input->enable.notify = handle_text_input_enable;
-	wl_signal_add(&text_input->input->events.enable, &text_input->enable);
-
-	text_input->disable.notify = handle_text_input_disable;
-	wl_signal_add(&text_input->input->events.disable, &text_input->disable);
-
-	text_input->commit.notify = handle_text_input_commit;
-	wl_signal_add(&text_input->input->events.commit, &text_input->commit);
-
-	text_input->destroy.notify = handle_text_input_destroy;
-	wl_signal_add(&text_input->input->events.destroy, &text_input->destroy);
-
-	update_text_inputs_focused_surface(relay);
-}
-
-void
-handle_focused_surface_destroy(struct wl_listener *listener,
-		void *data)
-{
-	struct input_method_relay *relay =
-		wl_container_of(listener, relay, focused_surface_destroy);
-	input_method_relay_set_focus(relay, NULL);
-}
-
-struct input_method_relay *
-input_method_relay_create()
-{
-	struct input_method_relay *relay = ecalloc(1, sizeof(*relay));
-	wl_list_init(&relay->text_inputs);
-	wl_list_init(&relay->popups);
-	relay->popup_tree = wlr_scene_tree_create(&scene->tree);
-
-	relay->new_text_input.notify = handle_new_text_input;
-	wl_signal_add(&text_input_manager->events.new_text_input, &relay->new_text_input);
-
-	relay->new_input_method.notify = handle_new_input_method;
-	wl_signal_add(&input_method_manager->events.new_input_method,
-			&relay->new_input_method);
-
-	relay->focused_surface_destroy.notify = handle_focused_surface_destroy;
-
-	return relay;
-}
-
-void
-input_method_relay_finish(struct input_method_relay *relay)
-{
-	wl_list_remove(&relay->new_text_input.link);
-	wl_list_remove(&relay->new_input_method.link);
-	free(relay);
-}
-
-void
-input_method_relay_set_focus(struct input_method_relay *relay,
-		struct wlr_surface *surface)
-{
-	if (!relay || relay->focused_surface == surface)
-		return;
-
-	if (relay->focused_surface)
-		wl_list_remove(&relay->focused_surface_destroy.link);
-	relay->focused_surface = surface;
-	if (surface)
-		wl_signal_add(&surface->events.destroy, &relay->focused_surface_destroy);
-
-	update_text_inputs_focused_surface(relay);
-	update_active_text_input(relay);
-}

util.c

@@ -0,0 +1,51 @@
+/* See LICENSE.dwm file for copyright and license details. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include "util.h"
+
+void
+die(const char *fmt, ...) {
+	va_list ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+
+	if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
+		fputc(' ', stderr);
+		perror(NULL);
+	} else {
+		fputc('\n', stderr);
+	}
+
+	exit(1);
+}
+
+void *
+ecalloc(size_t nmemb, size_t size)
+{
+	void *p;
+
+	if (!(p = calloc(nmemb, size)))
+		die("calloc:");
+	return p;
+}
+
+int
+fd_set_nonblock(int fd) {
+	int flags = fcntl(fd, F_GETFL);
+	if (flags < 0) {
+		perror("fcntl(F_GETFL):");
+		return -1;
+	}
+	if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) {
+		perror("fcntl(F_SETFL):");
+		return -1;
+	}
+
+	return 0;
+}

util.h

@@ -1,70 +1,5 @@
 /* See LICENSE.dwm file for copyright and license details. */
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <xkbcommon/xkbcommon.h>
 
-#define MAX(A, B)               ((A) > (B) ? (A) : (B))
+void die(const char *fmt, ...);
-#define MIN(A, B)               ((A) < (B) ? (A) : (B))
+void *ecalloc(size_t nmemb, size_t size);
-#define LENGTH(X)               (sizeof X / sizeof X[0])
+int fd_set_nonblock(int fd);
-#define END(A)                  ((A) + LENGTH(A))
-
-static void die(const char *fmt, ...);
-static void *ecalloc(size_t nmemb, size_t size);
-static int fd_set_nonblock(int fd);
-xkb_keysym_t keymap_get_one_sym_by_level(struct xkb_keymap *keymap,
-        xkb_keycode_t key, xkb_layout_index_t layout, xkb_level_index_t level);
-
-void
-die(const char *fmt, ...) {
-	va_list ap;
-
-	va_start(ap, fmt);
-	vfprintf(stderr, fmt, ap);
-	va_end(ap);
-
-	if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
-		fputc(' ', stderr);
-		perror(NULL);
-	} else {
-		fputc('\n', stderr);
-	}
-
-	exit(1);
-}
-
-void *
-ecalloc(size_t nmemb, size_t size)
-{
-	void *p;
-
-	if (!(p = calloc(nmemb, size)))
-		die("calloc:");
-	return p;
-}
-
-int
-fd_set_nonblock(int fd) {
-	int flags = fcntl(fd, F_GETFL);
-	if (flags < 0) {
-		perror("fcntl(F_GETFL):");
-		return -1;
-	}
-	if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) {
-		perror("fcntl(F_SETFL):");
-		return -1;
-	}
-
-	return 0;
-}
-
-xkb_keysym_t
-keymap_get_one_sym_by_level(struct xkb_keymap *keymap, xkb_keycode_t key,
-        xkb_layout_index_t layout, xkb_level_index_t level)
-{
-    const xkb_keysym_t *syms;
-    int count = xkb_keymap_key_get_syms_by_level(keymap, key, layout, level, &syms);
-    return count ? syms[0] : XKB_KEY_NoSymbol;
-}