version bump

Signed-off-by: Maarten van Gompel <proycon@anaproy.nl>

Makefile

@@ -3,6 +3,7 @@ include config.mk
 NAME=wvkbd
 BIN=${NAME}-${LAYOUT}
 SRC=.
+MAN1 = ${NAME}.1
 
 PKGS = wayland-client xkbcommon pangocairo
 
@@ -11,7 +12,7 @@ WVKBD_HEADERS += $(wildcard $(SRC)/*.h)
 
 CFLAGS += -std=gnu99 -Wall -g -DWITH_WAYLAND_SHM -DLAYOUT=\"layout.${LAYOUT}.h\" -DKEYMAP=\"keymap.${LAYOUT}.h\"
 CFLAGS += $(shell pkg-config --cflags $(PKGS))
-LDFLAGS =$(shell pkg-config --libs $(PKGS)) -lm -lutil -lrt
+LDFLAGS += $(shell pkg-config --libs $(PKGS)) -lm -lutil -lrt
 
 WAYLAND_HEADERS = $(wildcard proto/*.xml)
 
@@ -47,3 +48,5 @@ install: all
 	mkdir -p ${DESTDIR}${PREFIX}/bin
 	cp -f ${NAME}-${LAYOUT} ${DESTDIR}${PREFIX}/bin
 	chmod 755 ${DESTDIR}${PREFIX}/bin/${NAME}-${LAYOUT}
+	sed "s/VERSION/${VERSION}/g" < ${MAN1} > ${DESTDIR}${MANPREFIX}/man1/${MAN1}
+	chmod 644 ${DESTDIR}${MANPREFIX}/man1/${MAN1}

README.md

@@ -21,7 +21,7 @@ new features.
  - Support for 'Copy' keys which are not on the keymap
  - Emoji support
  - Compose key for character variants (e.g. diacritics)
- - Show/hide keyboard on signals (SIGUSR1 = hide, SIGUSR2 = show)
+ - Show/hide keyboard on signals (SIGUSR1 = hide, SIGUSR2 = show, SIGRTMIN = toggle)
  - Automatic portrait/landscape detection and subsequent layout switching
 
 
@@ -37,7 +37,8 @@ There are some areas that still need work:
 
 You'll need the following developer packages
 
- - pangocairo
+ - cairo
+ - pango
  - wayland-client
  - xkbcommon
 
@@ -46,7 +47,7 @@ Make any customizations you would like in `config.def.h` and run `make`
 The default set of layouts is called `mobintl` *(mobile international)*, which groups various layouts aimed at mobile devices
 and also attempts to accommodate various international users. The resulting binary is called `wvkbd-mobintl`.
 
-You can, however, define your own layouts by copying and and modifying `layout.mobintl.h` and `keymap.mobintl.h`
+You can, however, define your own layouts by copying and modifying `layout.mobintl.h` and `keymap.mobintl.h`
 (replace `mobintl` for something like `yourlayout`). Then make your layout set using `make LAYOUT=yourlayout`, and
 the resulting binary will be `wvkbd-yourlayout`
 
@@ -59,27 +60,39 @@ want a subset of the available layers, you can define which wants you want and i
 them using the `-l` parameter. This takes takes a ordered comma separated list of
 layout names that are defined in your layout set.
 
-The keyboard can be hidden by sending it a `SIGUSR1` signal and shown again by sending it `SIGUSR2`. This saves some
-start up time and may be appropriate in some low-resource environments.
+The keyboard can be hidden by sending it a `SIGUSR1` signal, shown again by sending it `SIGUSR2` or toggled by sending it `SIGRTMIN`.
+This saves some start up time and may be appropriate in some low-resource environments.
 
 Wvkbd has an output mode `-o` that will echo its output to standard output. This facility can be used if users want
 audio/haptic feedback, a feature explicitly out of scope for wvkbd. To achieve this, simply pipe wvkbd's output through the external tool
 [clickclack](https://git.sr.ht/~proycon/clickclack):
 
-`$ wvkbd-mobileintl -l simple,special,emoji -o | clickclack -V -f keypress.wav`
+`$ wvkbd-mobintl -l simple,special,emoji -o | clickclack -V -f keypress.wav`
+
+Another output mode, `-O` will let the keyboard output keys which are swiped over. It can be used by an external program, such as [swipeGuess](https://git.sr.ht/~earboxer/swipeGuess) to get swipe-typing support.
+
+`$ wvkbd-mobintl -O | swipeGuess.sh words.txt | completelyTypeWord.sh`
+
 
 ## Contribute
 
-Any contributions are welcome, please tell me what I did wrong in issues or
-PRs. I could also use some nice branding if that tickles your fancy.
+Any contributions are welcome, there are two ways to contribute, the first one is **preferred**:
 
-For code contributions, all I ask for now is you run `make format` (requires
-`clang-format`) before opening a PR and include as much relevant detail as
+1. [Sourcehut](https://git.sr.ht/~proycon/wvkbd) - Submit your patches using `git mail` to [~mil/sxmo-devel@lists.sr.ht](mailto:~mil/sxmo-devel@lists.sr.ht), follow [these contribution guidelines](https://sxmo.org/contribute/). Questions can also be asked on Sxmo's [mailing lists](https://sxmo.org/support/).
+2. [Github](https://github.com/jjsullivan5196/wvkbd/) - Submit a pull request or open an issue *(legacy method)*
+
+This project was started by [John Sullivan](https://jsullivan.cc/) and is
+currently being maintained by the [Sxmo](https://sxmo.org) project, whose
+maintainers will ensure both git remotes are kept in sync at all times.
+
+For code contributions, please run `make format` (requires `clang-format`)
+before sending a patch (opening a PR) and include as much relevant detail as
 possible.
 
 ## Related projects
 
 * [clickclack](https://git.sr.ht/~proycon/clickclack) - Audio/haptic feedback (standalone)
+* [swipeGuess](https://git.sr.ht/~earboxer/swipeGuess) - Word-completion for swipe-typing
 * [Sxmo](https://sxmo.org) - A hackable mobile interface environment for Linux phones that adopted wvkbd as its keyboard
 * [svkbd](https://tools.suckless.org/x/svkbd/) - A similar project as wvkbd but for X11 rather than Wayland
 * [squeekboard](https://gitlab.gnome.org/World/Phosh/squeekboard) - The virtual keyboard developed for the Librem5 (used

config.def.h

@@ -2,33 +2,37 @@
 #define config_def_h_INCLUDED
 
 static const char *default_font = "Monospace 14";
+static const int transparency = 225;
 
 struct clr_scheme scheme = {
   /* colors */
-  .bg = {.bgra = {15, 15, 15, 225}},
-  .fg = {.bgra = {45, 45, 45, 225}},
-  .high = {.bgra = {100, 100, 100, 225}},
+  .bg = {.bgra = {15, 15, 15, transparency}},
+  .fg = {.bgra = {45, 45, 45, transparency}},
+  .high = {.bgra = {100, 100, 100, transparency}},
+  .swipe = {.bgra = {100, 255, 100, 64}},
   .text = {.color = UINT32_MAX},
 };
 struct clr_scheme scheme1 = {
   /* colors */
-  .bg = {.bgra = {15, 15, 15, 225}},
-  .fg = {.bgra = {32, 32, 32, 225}},
-  .high = {.bgra = {100, 100, 100, 225}},
+  .bg = {.bgra = {15, 15, 15, transparency}},
+  .fg = {.bgra = {32, 32, 32, transparency}},
+  .high = {.bgra = {100, 100, 100, transparency}},
+  .swipe = {.bgra = {100, 255, 100, 64}},
   .text = {.color = UINT32_MAX},
 };
 
 /* layers is an ordered list of layouts, used to cycle through */
 static enum layout_id layers[] = {
   Full, // First layout is the default layout on startup
-  Special,   Emoji, Simple, SimpleGrid, Nav, Dialer, Cyrillic, Arabic,
+  Special,   Emoji,  Simple,  SimpleGrid, Nav,      Dialer,
+  Cyrillic,  Arabic, Persian, Greek,      Georgian,
   NumLayouts // signals the last item, may not be omitted
 };
 
 /* layers is an ordered list of layouts, used to cycle through */
 static enum layout_id landscape_layers[] = {
   Landscape, // First layout is the default layout on startup
-  Special, Emoji, Nav,
+  Special,   Emoji, Nav, Greek,
   NumLayouts // signals the last item, may not be omitted
 };
 

config.mk

@@ -1,3 +1,5 @@
-VERSION = 0.2
+VERSION = 0.8.1
 CFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=700
+PREFIX = /usr/local
+MANPREFIX = ${PREFIX}/share/man
 LAYOUT = mobintl

drw.c

@@ -69,11 +69,15 @@ drw_draw_text(struct drwsurf *d, Color color, uint32_t x, uint32_t y,
 }
 
 void
-drw_fill_rectangle(struct drwsurf *d, Color color, uint32_t x, uint32_t y,
-                   uint32_t w, uint32_t h) {
+drw_do_rectangle(struct drwsurf *d, Color color, uint32_t x, uint32_t y,
+                 uint32_t w, uint32_t h, bool over) {
 	cairo_save(d->cairo);
 
-	cairo_set_operator(d->cairo, CAIRO_OPERATOR_SOURCE);
+	if (over) {
+		cairo_set_operator(d->cairo, CAIRO_OPERATOR_OVER);
+	} else {
+		cairo_set_operator(d->cairo, CAIRO_OPERATOR_SOURCE);
+	}
 
 	cairo_rectangle(d->cairo, x, y, w, h);
 	cairo_set_source_rgba(
@@ -86,6 +90,18 @@ drw_fill_rectangle(struct drwsurf *d, Color color, uint32_t x, uint32_t y,
 	wl_surface_damage(d->surf, x, y, w, h);
 }
 
+void
+drw_fill_rectangle(struct drwsurf *d, Color color, uint32_t x, uint32_t y,
+                   uint32_t w, uint32_t h) {
+	drw_do_rectangle(d, color, x, y, w, h, false);
+}
+
+void
+drw_over_rectangle(struct drwsurf *d, Color color, uint32_t x, uint32_t y,
+                   uint32_t w, uint32_t h) {
+	drw_do_rectangle(d, color, x, y, w, h, true);
+}
+
 uint32_t
 setup_buffer(struct drwsurf *drwsurf) {
 	int stride = drwsurf->width * 4;

drw.h

@@ -31,8 +31,12 @@ typedef union {
 	uint32_t color;
 } Color;
 
+void drw_do_rectangle(struct drwsurf *d, Color color, uint32_t x, uint32_t y,
+                      uint32_t w, uint32_t h, bool fill);
 void drw_fill_rectangle(struct drwsurf *d, Color color, uint32_t x, uint32_t y,
                         uint32_t w, uint32_t h);
+void drw_over_rectangle(struct drwsurf *d, Color color, uint32_t x, uint32_t y,
+                        uint32_t w, uint32_t h);
 
 void drw_draw_text(struct drwsurf *d, Color color, uint32_t x, uint32_t y,
                    uint32_t w, uint32_t h, const char *label);

keyboard.c

@@ -166,8 +166,16 @@ kbd_get_key(struct kbd *kb, uint32_t x, uint32_t y) {
 
 void
 kbd_unpress_key(struct kbd *kb, uint32_t time) {
+	bool unlatch_shift = false;
+
 	if (kb->last_press) {
-		kbd_draw_key(kb, kb->last_press, false);
+		unlatch_shift = (kb->mods & Shift) == Shift;
+
+		if (unlatch_shift) {
+			kb->mods ^= Shift;
+			zwp_virtual_keyboard_v1_modifiers(kb->vkbd, kb->mods, 0, 0, 0);
+		}
+
 		if (kb->last_press->type == Copy) {
 			zwp_virtual_keyboard_v1_key(kb->vkbd, time, 127, // COMP key
 			                            WL_KEYBOARD_KEY_STATE_RELEASED);
@@ -175,17 +183,52 @@ kbd_unpress_key(struct kbd *kb, uint32_t time) {
 			zwp_virtual_keyboard_v1_key(kb->vkbd, time, kb->last_press->code,
 			                            WL_KEYBOARD_KEY_STATE_RELEASED);
 		}
-		kb->last_press = NULL;
 
 		if (kb->compose >= 2) {
 			kb->compose = 0;
 			kbd_switch_layout(kb, kb->prevlayout);
-			if ((kb->mods & Shift) == Shift)
-				kb->mods ^= Shift;
-		} else if ((kb->mods & Shift) == Shift) {
-			kb->mods ^= Shift;
+		} else if (unlatch_shift) {
 			kbd_draw_layout(kb);
+		} else {
+			kbd_draw_key(kb, kb->last_press, Unpress);
 		}
+
+		kb->last_press = NULL;
+	}
+}
+
+void
+kbd_release_key(struct kbd *kb, uint32_t time) {
+	kbd_unpress_key(kb, time);
+	if (kb->print_intersect && kb->last_swipe) {
+		printf("\n");
+		// Important so autocompleted words get typed in time
+		fflush(stdout);
+		kbd_draw_layout(kb);
+		kb->last_swipe = NULL;
+	}
+}
+
+void
+kbd_motion_key(struct kbd *kb, uint32_t time, uint32_t x, uint32_t y) {
+	// Output intersecting keys
+	// (for external 'swiping'-based accelerators).
+	if (kb->print_intersect) {
+		if (kb->last_press) {
+			kbd_unpress_key(kb, time);
+			// Redraw last press as a swipe.
+			kbd_draw_key(kb, kb->last_swipe, Swipe);
+		}
+		struct key *intersect_key;
+		intersect_key = kbd_get_key(kb, x, y);
+		if (intersect_key &&
+		    (!kb->last_swipe || intersect_key->label != kb->last_swipe->label)) {
+			kbd_print_key_stdout(kb, intersect_key);
+			kb->last_swipe = intersect_key;
+			kbd_draw_key(kb, kb->last_swipe, Swipe);
+		}
+	} else {
+		kbd_unpress_key(kb, time);
 	}
 }
 
@@ -212,11 +255,11 @@ kbd_press_key(struct kbd *kb, struct key *k, uint32_t time) {
 		} else {
 			zwp_virtual_keyboard_v1_modifiers(kb->vkbd, kb->mods, 0, 0, 0);
 		}
-		kb->last_press = k;
-		kbd_draw_key(kb, k, true);
+		kb->last_swipe = kb->last_press = k;
+		kbd_draw_key(kb, k, Press);
 		zwp_virtual_keyboard_v1_key(kb->vkbd, time, kb->last_press->code,
 		                            WL_KEYBOARD_KEY_STATE_PRESSED);
-		if (kb->print)
+		if (kb->print || kb->print_intersect)
 			kbd_print_key_stdout(kb, k);
 		if (kb->compose) {
 			if (kb->debug)
@@ -229,7 +272,11 @@ kbd_press_key(struct kbd *kb, struct key *k, uint32_t time) {
 		if (k->code == Shift) {
 			kbd_draw_layout(kb);
 		}
-		kbd_draw_key(kb, k, kb->mods & k->code);
+		if (kb->mods & k->code) {
+			kbd_draw_key(kb, k, Press);
+		} else {
+			kbd_draw_key(kb, k, Unpress);
+		}
 		zwp_virtual_keyboard_v1_modifiers(kb->vkbd, kb->mods, 0, 0, 0);
 		break;
 	case Layout:
@@ -243,7 +290,11 @@ kbd_press_key(struct kbd *kb, struct key *k, uint32_t time) {
 		} else {
 			kb->compose = 0;
 		}
-		kbd_draw_key(kb, k, (bool)kb->compose);
+		if ((bool)kb->compose) {
+			kbd_draw_key(kb, k, Press);
+		} else {
+			kbd_draw_key(kb, k, Unpress);
+		}
 		break;
 	case NextLayer:
 		// switch to the next layout in the layer sequence
@@ -271,15 +322,15 @@ kbd_press_key(struct kbd *kb, struct key *k, uint32_t time) {
 		break;
 	case Copy:
 		// copy code as unicode chr by setting a temporary keymap
-		kb->last_press = k;
-		kbd_draw_key(kb, k, true);
+		kb->last_swipe = kb->last_press = k;
+		kbd_draw_key(kb, k, Press);
 		if (kb->debug)
 			fprintf(stderr, "pressing copy key\n");
 		create_and_upload_keymap(kb, kb->layout->keymap_name, k->code, k->code_mod);
 		zwp_virtual_keyboard_v1_modifiers(kb->vkbd, kb->mods, 0, 0, 0);
 		zwp_virtual_keyboard_v1_key(kb->vkbd, time, 127, // COMP key
 		                            WL_KEYBOARD_KEY_STATE_PRESSED);
-		if (kb->print)
+		if (kb->print || kb->print_intersect)
 			kbd_print_key_stdout(kb, k);
 		break;
 	default:
@@ -327,15 +378,24 @@ kbd_print_key_stdout(struct kbd *kb, struct key *k) {
 }
 
 void
-kbd_draw_key(struct kbd *kb, struct key *k, bool pressed) {
+kbd_draw_key(struct kbd *kb, struct key *k, enum key_draw_type type) {
 	struct drwsurf *d = kb->surf;
 	const char *label = (kb->mods & Shift) ? k->shift_label : k->label;
 	if (kb->debug)
 		fprintf(stderr, "Draw key +%d+%d %dx%d -> %s\n", k->x, k->y, k->w, k->h,
 		        label);
 	struct clr_scheme *scheme = (k->scheme == 0) ? &(kb->scheme) : &(kb->scheme1);
-	Color *fill = pressed ? &scheme->high : &scheme->fg;
-	draw_inset(d, k->x, k->y, k->w, k->h, KBD_KEY_BORDER, *fill);
+	switch (type) {
+	case Unpress:
+		draw_inset(d, k->x, k->y, k->w, k->h, KBD_KEY_BORDER, scheme->fg);
+		break;
+	case Press:
+		draw_inset(d, k->x, k->y, k->w, k->h, KBD_KEY_BORDER, scheme->high);
+		break;
+	case Swipe:
+		draw_over_inset(d, k->x, k->y, k->w, k->h, KBD_KEY_BORDER, scheme->swipe);
+		break;
+	}
 	drw_draw_text(d, scheme->text, k->x, k->y, k->w, k->h, label);
 }
 
@@ -343,7 +403,6 @@ void
 kbd_draw_layout(struct kbd *kb) {
 	struct drwsurf *d = kb->surf;
 	struct key *next_key = kb->layout->keys;
-	bool pressed = false;
 	if (kb->debug)
 		fprintf(stderr, "Draw layout");
 
@@ -354,8 +413,12 @@ kbd_draw_layout(struct kbd *kb) {
 			next_key++;
 			continue;
 		}
-		pressed = next_key->type == Mod && kb->mods & next_key->code;
-		kbd_draw_key(kb, next_key, pressed);
+		if ((next_key->type == Mod && kb->mods & next_key->code) ||
+			(next_key->type == Compose && kb->compose)) {
+			kbd_draw_key(kb, next_key, Press);
+		} else {
+			kbd_draw_key(kb, next_key, Unpress);
+		}
 		next_key++;
 	}
 }
@@ -380,6 +443,12 @@ draw_inset(struct drwsurf *ds, uint32_t x, uint32_t y, uint32_t width,
 	drw_fill_rectangle(ds, color, x + border, y + border, width - border,
 	                   height - border);
 }
+void
+draw_over_inset(struct drwsurf *ds, uint32_t x, uint32_t y, uint32_t width,
+                uint32_t height, uint32_t border, Color color) {
+	drw_over_rectangle(ds, color, x + border, y + border, width - border,
+	                   height - border);
+}
 
 void
 create_and_upload_keymap(struct kbd *kb, const char *name, uint32_t comp_unichr,

keyboard.h

@@ -41,10 +41,17 @@ enum key_modifier_type {
 	AltGr = 128,
 };
 
+enum key_draw_type {
+	Unpress = 0,
+	Press,
+	Swipe,
+};
+
 struct clr_scheme {
 	Color fg;
 	Color bg;
 	Color high;
+	Color swipe;
 	Color text;
 };
 
@@ -85,11 +92,13 @@ struct kbd {
 	struct clr_scheme scheme1;
 
 	bool print;
+	bool print_intersect;
 	uint32_t w, h, s;
 	bool landscape;
 	uint8_t mods;
 	uint8_t compose;
 	struct key *last_press;
+	struct key *last_swipe;
 	struct layout *prevlayout;
 	size_t layer_index;
 
@@ -103,14 +112,18 @@ struct kbd {
 
 void draw_inset(struct drwsurf *ds, uint32_t x, uint32_t y, uint32_t width,
                 uint32_t height, uint32_t border, Color color);
+void draw_over_inset(struct drwsurf *ds, uint32_t x, uint32_t y, uint32_t width,
+                     uint32_t height, uint32_t border, Color color);
 
 void kbd_init(struct kbd *kb, struct layout *layouts, char *layer_names_list);
 void kbd_init_layout(struct layout *l, uint32_t width, uint32_t height);
 struct key *kbd_get_key(struct kbd *kb, uint32_t x, uint32_t y);
 void kbd_unpress_key(struct kbd *kb, uint32_t time);
+void kbd_release_key(struct kbd *kb, uint32_t time);
+void kbd_motion_key(struct kbd *kb, uint32_t time, uint32_t x, uint32_t y);
 void kbd_press_key(struct kbd *kb, struct key *k, uint32_t time);
 void kbd_print_key_stdout(struct kbd *kb, struct key *k);
-void kbd_draw_key(struct kbd *kb, struct key *k, bool pressed);
+void kbd_draw_key(struct kbd *kb, struct key *k, enum key_draw_type);
 void kbd_draw_layout(struct kbd *kb);
 void kbd_resize(struct kbd *kb, struct layout *layouts, uint8_t layoutcount);
 uint8_t kbd_get_rows(struct layout *l);

layout.mobintl.h

@@ -1,5 +1,4 @@
 /* constants */
-
 /* how tall the keyboard should be by default (can be overriden) */
 #define KBD_PIXEL_HEIGHT 240
 
@@ -21,6 +20,9 @@ enum layout_id {
 	Dialer,
 	Cyrillic,
 	Arabic,
+	Persian,
+	Greek,
+	Georgian,
 	Emoji,
 	Nav,
 	Landscape,
@@ -66,18 +68,19 @@ enum layout_id {
 };
 
 static struct key keys_full[], keys_special[], keys_simple[], keys_simplegrid[],
-  keys_cyrillic[], keys_arabic[], keys_emoji[], keys_nav[], keys_landscape[],
-  keys_compose_a[], keys_compose_e[], keys_compose_y[], keys_compose_u[],
-  keys_compose_i[], keys_compose_o[], keys_compose_w[], keys_compose_r[],
-  keys_compose_t[], keys_compose_p[], keys_compose_s[], keys_compose_d[],
-  keys_compose_f[], keys_compose_g[], keys_compose_h[], keys_compose_j[],
-  keys_compose_k[], keys_compose_l[], keys_compose_z[], keys_compose_x[],
-  keys_compose_c[], keys_compose_v[], keys_compose_b[], keys_compose_n[],
-  keys_compose_m[], keys_compose_math[], keys_compose_punctuation[],
-  keys_compose_bracket[], keys_compose_cyr_i[], keys_compose_cyr_j[],
-  keys_compose_cyr_e[], keys_compose_cyr_u[], keys_compose_cyr_l[],
-  keys_compose_cyr_n[], keys_compose_cyr_tse[], keys_compose_cyr_che[],
-  keys_compose_cyr_g[], keys_compose_cyr_k[], keys_dialer[];
+  keys_cyrillic[], keys_arabic[], keys_persian[], keys_georgian[], keys_greek[],
+  keys_emoji[], keys_nav[], keys_landscape[], keys_compose_a[],
+  keys_compose_e[], keys_compose_y[], keys_compose_u[], keys_compose_i[],
+  keys_compose_o[], keys_compose_w[], keys_compose_r[], keys_compose_t[],
+  keys_compose_p[], keys_compose_s[], keys_compose_d[], keys_compose_f[],
+  keys_compose_g[], keys_compose_h[], keys_compose_j[], keys_compose_k[],
+  keys_compose_l[], keys_compose_z[], keys_compose_x[], keys_compose_c[],
+  keys_compose_v[], keys_compose_b[], keys_compose_n[], keys_compose_m[],
+  keys_compose_math[], keys_compose_punctuation[], keys_compose_bracket[],
+  keys_compose_cyr_i[], keys_compose_cyr_j[], keys_compose_cyr_e[],
+  keys_compose_cyr_u[], keys_compose_cyr_l[], keys_compose_cyr_n[],
+  keys_compose_cyr_tse[], keys_compose_cyr_che[], keys_compose_cyr_g[],
+  keys_compose_cyr_k[], keys_dialer[];
 
 static struct layout layouts[NumLayouts] = {
   [Full] = {keys_full, "latin", "full"}, // second parameter is the keymap name
@@ -88,6 +91,9 @@ static struct layout layouts[NumLayouts] = {
   [Cyrillic] = {keys_cyrillic, "cyrillic", "cyrillic"},
   [Dialer] = {keys_dialer, "latin", "dialer"},
   [Arabic] = {keys_arabic, "arabic", "arabic"},
+  [Georgian] = {keys_georgian, "georgian", "georgian"},
+  [Persian] = {keys_persian, "persian", "persian"},
+  [Greek] = {keys_greek, "greek", "greek"},
   [Emoji] = {keys_emoji, "latin", "emoji"},
   [Nav] = {keys_nav, "latin", "nav"},
   [Landscape] = {keys_landscape, "latin", "landscape"},
@@ -334,7 +340,7 @@ static struct key keys_simple[] = {
 
   {"Abc", "Abc", 1.0, NextLayer, .scheme = 1},
   {"Ctr", "Ctr", 1.0, Mod, Ctrl, .scheme = 1},
-  {",", "'", 1.0, Code, KEY_COMMA, &layouts[ComposeMath]},
+  {"-", "_", 1.0, Code, KEY_MINUS, &layouts[ComposeMath]},
   {"", "", 4.0, Code, KEY_SPACE},
   {".", "?", 1.0, Code, KEY_DOT, &layouts[ComposePunctuation]},
   {"Enter", "Enter", 2.0, Code, KEY_ENTER, .scheme = 1},
@@ -363,8 +369,8 @@ static struct key keys_dialer[] = {
   {"0", "0", 1.0, Code, KEY_0},
   {"#", "#", 1.0, Code, KEY_NUMERIC_POUND},
   {"", "", 0.0, EndRow},
-  {"Enter", "Enter", 2.0, Code, KEY_ENTER, .scheme = 1}
-,
+  {"Abc", "Abc", 1.0, NextLayer, .scheme = 1},
+  {"Enter", "Enter", 2.0, Code, KEY_ENTER, .scheme = 1},
 
   /* end of layout */
   {"", "", 0.0, Last},
@@ -409,7 +415,7 @@ static struct key keys_simplegrid[] = {
 
   {"Abc", "Abc", 1.0, NextLayer, .scheme = 1},
   {"Ctr", "Ctr", 1.0, Mod, Ctrl, .scheme = 1},
-  {",", "'", 1.0, Code, KEY_COMMA, &layouts[ComposeMath]},
+  {"-", "_", 1.0, Code, KEY_MINUS, &layouts[ComposeMath]},
   {"Cmp", "Cmp", 1.0, Compose, .scheme = 1},
   {"", "", 3.0, Code, KEY_SPACE},
   {".", "?", 1.0, Code, KEY_DOT, &layouts[ComposePunctuation]},
@@ -548,6 +554,194 @@ static struct key keys_arabic[] = {
   {"", "", 0.0, Last},
 };
 
+static struct key keys_georgian[] = {
+  {"1", "!", 1.0, Code, KEY_1},
+  {"2", "@", 1.0, Code, KEY_2},
+  {"3", "#", 1.0, Code, KEY_3},
+  {"4", ";", 1.0, Code, KEY_4},
+  {"5", "%", 1.0, Code, KEY_5},
+  {"6", ":", 1.0, Code, KEY_6},
+  {"7", "&", 1.0, Code, KEY_7},
+  {"8", "*", 1.0, Code, KEY_8},
+  {"9", "(", 1.0, Code, KEY_9},
+  {"0", ")", 1.0, Code, KEY_0},
+  {"", "", 0.0, EndRow},
+
+  {"ქ", "Q", 1.0, Code, KEY_Q},
+  {"წ", "ჭ", 1.0, Code, KEY_W},
+  {"ე", "E", 1.0, Code, KEY_E},
+  {"რ", "ღ", 1.0, Code, KEY_R},
+  {"ტ", "თ", 1.0, Code, KEY_T},
+  {"ყ", "Y", 1.0, Code, KEY_Y},
+  {"უ", "U", 1.0, Code, KEY_U},
+  {"ი", "I", 1.0, Code, KEY_I},
+  {"ო", "O", 1.0, Code, KEY_O},
+  {"პ", "P", 1.0, Code, KEY_P},
+  {"", "", 0.0, EndRow},
+
+  {"ა", "A", 1.0, Code, KEY_A},
+  {"ს", "შ", 1.0, Code, KEY_S},
+  {"დ", "D", 1.0, Code, KEY_D},
+  {"ფ", "F", 1.0, Code, KEY_F},
+  {"გ", "G", 1.0, Code, KEY_G},
+  {"ჰ", "H", 1.0, Code, KEY_H},
+  {"ჯ", "ჟ", 1.0, Code, KEY_J},
+  {"კ", "K", 1.0, Code, KEY_K},
+  {"ლ", "L", 1.0, Code, KEY_L},
+  {";", ":", 1.0, Code, KEY_SEMICOLON},
+  {"", "", 0.0, EndRow},
+
+  {"ზ", "ძ", 1.0, Code, KEY_Z},
+  {"ხ", "X", 1.0, Code, KEY_X},
+  {"ც", "ჩ", 1.0, Code, KEY_C},
+  {"ვ", "V", 1.0, Code, KEY_V},
+  {"ბ", "B", 1.0, Code, KEY_B},
+  {"ნ", "N", 1.0, Code, KEY_N},
+  {"მ", "M", 1.0, Code, KEY_M},
+  {",", "<", 1.0, Code, KEY_COMMA},
+  {".", ">", 1.0, Code, KEY_DOT},
+  {"⌫", "⌫", 1.0, Code, KEY_BACKSPACE, .scheme = 1},
+
+  {"", "", 0.0, EndRow},
+
+  {"Abc", "Abc", 1.0, NextLayer, .scheme = 1},
+  {"⇧", "⇧", 1.0, Mod, Shift, .scheme = 1},
+  {"Cmp", "Cmp", 1.0, Compose, .scheme = 1},
+  {"", "", 5.0, Code, KEY_SPACE},
+  {"Enter", "Enter", 2.0, Code, KEY_ENTER, .scheme = 1},
+
+  /* end of layout */
+  {"", "", 0.0, Last},
+};
+
+static struct key keys_persian[] = {
+  {"۱", "|", 1.0, Code, KEY_1},
+  {"۲", "٬", 1.0, Code, KEY_2},
+  {"۳", "#", 1.0, Code, KEY_3},
+  {"۴", "﷼", 1.0, Code, KEY_4},
+  {"۵", "٪", 1.0, Code, KEY_5},
+  {"۶", "×", 1.0, Code, KEY_6},
+  {"۷", "/", 1.0, Code, KEY_7},
+  {"۸", "*", 1.0, Code, KEY_8},
+  {"۹", ")", 1.0, Code, KEY_9},
+  {"۰", "(", 1.0, Code, KEY_0},
+  {"-", "_", 1.0, Code, KEY_MINUS},
+  {"=", "+", 1.0, Code, KEY_EQUAL},
+  {"", "", 0.0, EndRow},
+
+  {"ض", "ﹿ", 1.0, Code, KEY_Q},
+  {"ص", "ـٌ", 1.0, Code, KEY_W},
+  {"ث", "ـٍ", 1.0, Code, KEY_E},
+  {"ق", "ـً", 1.0, Code, KEY_R},
+  {"ف", "ـُ", 1.0, Code, KEY_T},
+  {"غ", "ـِ", 1.0, Code, KEY_Y},
+  {"ع", "ـَ", 1.0, Code, KEY_U},
+  {"ه", "ﹽ", 1.0, Code, KEY_I},
+  {"خ", "]", 1.0, Code, KEY_O},
+  {"ح", "[", 1.0, Code, KEY_P},
+  {"ج", "}", 1.0, Code, KEY_LEFTBRACE},
+  {"چ", "{", 1.0, Code, KEY_RIGHTBRACE},
+  {"", "", 0.0, EndRow},
+
+  {"ش", "ؤ", 1.0, Code, KEY_A},
+  {"س", "ئ", 1.0, Code, KEY_S},
+  {"ی", "ي", 1.0, Code, KEY_D},
+  {"ب", "إ", 1.0, Code, KEY_F},
+  {"ل", "أ", 1.0, Code, KEY_G},
+  {"ا", "آ", 1.0, Code, KEY_H},
+  {"ت", "ة", 1.0, Code, KEY_J},
+  {"ن", "»", 1.0, Code, KEY_K},
+  {"م", "«", 1.0, Code, KEY_L},
+  {"ک", ":", 1.0, Code, KEY_SEMICOLON},
+  {"گ", "؛", 1.0, Code, KEY_APOSTROPHE},
+  {"", "", 0.0, EndRow},
+
+  {"⇧", "⇧", 1.5, Mod, Shift, .scheme = 1},
+  {"ظ", "ك", 1.0, Code, KEY_Z},
+  {"ط", "ـٓ", 1.0, Code, KEY_X},
+  {"ژ", ">", 1.0, Code, KEY_BACKSLASH},
+  {"ز", "<", 1.0, Code, KEY_C},
+  {"ر", "ـٰ", 1.0, Code, KEY_V},
+  {"ذ", "⇑", 1.0, Code, KEY_B},
+  {"د", "ـٔ", 1.0, Code, KEY_N},
+  {"پ", "ء", 1.0, Code, KEY_M},
+  {"و", "\\", 1.0, Code, KEY_COMMA},
+  {"⌫", "⌫", 1.5, Code, KEY_BACKSPACE, .scheme = 1},
+  {"", "", 0.0, EndRow},
+
+  {"Abc", "Abc", 1.0, NextLayer, .scheme = 1},
+  {"Cmp", "Cmp", 1.0, Compose, .scheme = 1},
+  {".", "،", 1.0, Code, KEY_DOT},
+  {"", "", 4.0, Code, KEY_SPACE},
+  {"⥣", "↥", 1.0, Code, KEY_GRAVE},
+  {"؟", "!", 1.0, Code, KEY_SLASH},
+  {"Enter", "Enter", 2.0, Code, KEY_ENTER, .scheme = 1},
+
+  /* end of layout */
+  {"", "", 0.0, Last},
+};
+
+static struct key keys_greek[] = {
+  {"1", "!", 1.0, Code, KEY_1},
+  {"2", "@", 1.0, Code, KEY_2},
+  {"3", "#", 1.0, Code, KEY_3},
+  {"4", "$", 1.0, Code, KEY_4},
+  {"5", "%", 1.0, Code, KEY_5},
+  {"6", "^", 1.0, Code, KEY_6},
+  {"7", "&", 1.0, Code, KEY_7},
+  {"8", "*", 1.0, Code, KEY_8},
+  {"9", "(", 1.0, Code, KEY_9},
+  {"0", ")", 1.0, Code, KEY_0},
+  {"-", "_", 1.0, Code, KEY_MINUS},
+  {"=", "+", 1.0, Code, KEY_EQUAL},
+  {"", "", 0.0, EndRow},
+
+  {";", ":", 1.0, Code, KEY_Q},
+  {"ς", "Σ", 1.0, Code, KEY_W},
+  {"ε", "Ε", 1.0, Code, KEY_E},
+  {"ρ", "Ρ", 1.0, Code, KEY_R},
+  {"τ", "Τ", 1.0, Code, KEY_T},
+  {"υ", "Υ", 1.0, Code, KEY_Y},
+  {"θ", "Θ", 1.0, Code, KEY_U},
+  {"ι", "Ι", 1.0, Code, KEY_I},
+  {"ο", "Ο", 1.0, Code, KEY_O},
+  {"π", "Π", 1.0, Code, KEY_P},
+  {"", "", 0.0, EndRow},
+
+  {"α", "A", 1.0, Code, KEY_A},
+  {"σ", "Σ", 1.0, Code, KEY_S},
+  {"δ", "Δ", 1.0, Code, KEY_D},
+  {"φ", "Φ", 1.0, Code, KEY_F},
+  {"γ", "Γ", 1.0, Code, KEY_G},
+  {"η", "Η", 1.0, Code, KEY_H},
+  {"ξ", "Ξ", 1.0, Code, KEY_J},
+  {"κ", "Κ", 1.0, Code, KEY_K},
+  {"λ", "Λ", 1.0, Code, KEY_L},
+  {"΄", "¨", 1.0, Code, KEY_SEMICOLON},
+  {"", "", 0.0, EndRow},
+
+  {"⇧", "⇧", 1.5, Mod, Shift, .scheme = 1},
+  {"ζ", "Ζ", 1.0, Code, KEY_Z},
+  {"χ", "Χ", 1.0, Code, KEY_X},
+  {"ψ", "Ψ", 1.0, Code, KEY_C},
+  {"ω", "Ω", 1.0, Code, KEY_V},
+  {"β", "Β", 1.0, Code, KEY_B},
+  {"ν", "Ν", 1.0, Code, KEY_N},
+  {"μ", "Μ", 1.0, Code, KEY_M},
+  {"/", "\\", 1.0, Code, KEY_SLASH},
+  {"⌫", "⌫", 1.5, Code, KEY_BACKSPACE, .scheme = 1},
+  {"", "", 0.0, EndRow},
+
+  {"Abc", "Abc", 1.5, NextLayer, .scheme = 1},
+  {",", "'", 1.0, Code, KEY_COMMA},
+  {"", "", 5, Code, KEY_SPACE},
+  {".", "\"", 1.0, Code, KEY_DOT},
+  {"Enter", "Enter", 2, Code, KEY_ENTER, .scheme = 1},
+
+  /* end of layout */
+  {"", "", 0.0, Last},
+};
+
 static struct key keys_compose_a[] = {
   {"à", "À", 1.0, Copy, 0x00E0, 0, 0x00C0},
   {"á", "Á", 1.0, Copy, 0x00E1, 0, 0x00C1},
@@ -635,7 +829,7 @@ static struct key keys_compose_u[] = {
   {"ŭ", "Ŭ", 1.0, Copy, 0x016D, 0, 0x016C},
   {"ů", "Ů", 1.0, Copy, 0x016F, 0, 0x016E},
   {"ű", "Ű", 1.0, Copy, 0x0171, 0, 0x0170},
-  {"ų", "Ų", 1.0, Copy, 0x0172, 0, 0x0173},
+  {"ų", "Ų", 1.0, Copy, 0x0173, 0, 0x0172},
   {"", "", 0.0, EndRow},
   {"υ", "Υ", 1.0, Copy, 0x03C5, 0, 0x03A5},
   {"", "", 9.0, Pad},
@@ -662,7 +856,7 @@ static struct key keys_compose_o[] = {
   {"ø", "Ø", 1.0, Copy, 0x00F8, 0, 0x00D8},
   {"ō", "Ō", 1.0, Copy, 0x014D, 0, 0x014C},
   {"ŏ", "Ŏ", 1.0, Copy, 0x014F, 0, 0x014E},
-  {"ő", "Ő", 1.0, Copy, 0x0150, 0, 0x0151},
+  {"ő", "Ő", 1.0, Copy, 0x0151, 0, 0x0150},
   {"œ", "Œ", 1.0, Copy, 0x0153, 0, 0x0152},
   {"", "", 0.0, EndRow},
   {"ο", "Ο", 1.0, Copy, 0x03BF, 0, 0x039F},
@@ -691,8 +885,8 @@ static struct key keys_compose_i[] = {
   {"ī", "Ī", 1.0, Copy, 0x012B, 0, 0x012A},
   {"ĭ", "Ĭ", 1.0, Copy, 0x012D, 0, 0x012C},
   {"į", "Į", 1.0, Copy, 0x012F, 0, 0x012E},
-  {"ı", "I", 1.0, Copy, 0x0150, 0, 0x0049},
-  {"i", "İ", 1.0, Copy, 0x0069, 0, 0x0152},
+  {"ı", "I", 1.0, Copy, 0x0131, 0, 0x0049},
+  {"i", "İ", 1.0, Copy, 0x0069, 0, 0x0130},
   {"", "", 0.0, EndRow},
   {"ι", "Ι", 1.0, Copy, 0x03B9, 0, 0x0399},
   {"η", "Η", 1.0, Copy, 0x03B7, 0, 0x0397},
@@ -759,7 +953,7 @@ static struct key keys_emoji[] = {
 
 static struct key keys_nav[] = {
   {"Esc", "Esc", 1.0, Code, KEY_ESC, .scheme = 1},
-  {"", "", 1.0, Code, KEY_SPACE, .scheme = 1},
+  {"⌫", "⌫", 1.0, Code, KEY_BACKSPACE, .scheme = 1},
   {"↑", "↑", 1.0, Code, KEY_UP, .scheme = 1},
   {"⇈", "⇈", 1.0, Code, KEY_PAGEUP, .scheme = 1},
   {"", "", 0.0, EndRow},
@@ -771,7 +965,7 @@ static struct key keys_nav[] = {
   {"", "", 0.0, EndRow},
 
   {"Sym", "Sym", 1.0, NextLayer, .scheme = 1},
-  {"⌫", "⌫", 1.0, Code, KEY_BACKSPACE, .scheme = 1},
+  {"", "", 1.0, Code, KEY_SPACE, .scheme = 1},
   {"↓", "↓", 1.0, Code, KEY_DOWN, .scheme = 1},
   {"⇊", "⇊", 1.0, Code, KEY_PAGEDOWN, .scheme = 1},
   {"", "", 0.0, Last},
@@ -1433,17 +1627,17 @@ static struct key keys_compose_math[] = {
   {"", "", 10.0, Pad},
   {"", "", 0.0, EndRow},
   {"⇧", "⇧", 2, Mod, Shift, .scheme = 1},
-  {"-", "-", 1, Code, KEY_MINUS},
   {"+", "+", 1, Code, KEY_EQUAL, 0, Shift},
   {"/", "/", 1, Code, KEY_SLASH},
   {"*", "*", 1, Code, KEY_8, 0, Shift},
   {"=", "=", 1, Code, KEY_EQUAL},
   {"_", "_", 1, Code, KEY_MINUS, 0, Shift},
+  {"—", "—", 1, Copy, 0x2014, 0, 0x2014},
   {"", "", 2, Pad},
   {"", "", 0.0, EndRow},
   {"Abc", "Abc", 1.0, BackLayer},
   {"Ctr", "Ctr", 1.0, Mod, Ctrl, .scheme = 1},
-  {",", "'", 1.0, Code, KEY_COMMA, &layouts[ComposeMath]},
+  {"-", "-", 1, Code, KEY_MINUS},
   {"", "", 4.0, Code, KEY_SPACE},
   {".", "?", 1.0, Code, KEY_DOT, &layouts[ComposePunctuation]},
   {"Enter", "Enter", 2.0, Code, KEY_ENTER, .scheme = 1},
@@ -1465,13 +1659,14 @@ static struct key keys_compose_punctuation[] = {
   {"", "", 10.0, Pad},
   {"", "", 0.0, EndRow},
   {"⇧", "⇧", 2, Mod, Shift, .scheme = 1},
-  {"", "", 1, Pad},
+  {"…", "…", 1, Copy, 0x2026, 0, 0x2026},
   {":", ":", 1, Code, KEY_SEMICOLON, 0, Shift},
   {";", ";", 1, Code, KEY_SEMICOLON, 0},
   {"!", "!", 1, Code, KEY_1, 0, Shift},
   {"?", "?", 1, Code, KEY_DOT, 0, Shift},
   {",", ",", 1, Code, KEY_COMMA},
-  {"", "", 2, Pad},
+  {"·", "·", 1, Copy, 0x2027, 0, 0x2027},
+  {"", "", 1, Pad},
   {"", "", 0.0, EndRow},
   {"Abc", "Abc", 1.0, BackLayer},
   {"Ctr", "Ctr", 1.0, Mod, Ctrl, .scheme = 1},

main.c

@@ -42,8 +42,10 @@ static uint32_t anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM |
 /* application state */
 static bool run_display = true;
 static int cur_x = -1, cur_y = -1;
+static bool cur_press = false;
 static struct kbd keyboard;
 static uint32_t height, normal_height, landscape_height;
+static bool hidden = false;
 
 /* event handler prototypes */
 static void wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
@@ -159,13 +161,18 @@ wl_touch_down(void *data, struct wl_touch *wl_touch, uint32_t serial,
 void
 wl_touch_up(void *data, struct wl_touch *wl_touch, uint32_t serial,
             uint32_t time, int32_t id) {
-	kbd_unpress_key(&keyboard, time);
+	kbd_release_key(&keyboard, time);
 }
 
 void
 wl_touch_motion(void *data, struct wl_touch *wl_touch, uint32_t time,
                 int32_t id, wl_fixed_t x, wl_fixed_t y) {
-	kbd_unpress_key(&keyboard, time);
+	uint32_t touch_x, touch_y;
+
+	touch_x = wl_fixed_to_int(x);
+	touch_y = wl_fixed_to_int(y);
+
+	kbd_motion_key(&keyboard, time, touch_x, touch_y);
 }
 
 void
@@ -199,18 +206,24 @@ wl_pointer_motion(void *data, struct wl_pointer *wl_pointer, uint32_t time,
 	cur_x = wl_fixed_to_int(surface_x);
 	cur_y = wl_fixed_to_int(surface_y);
 
-	kbd_unpress_key(&keyboard, time);
+	if (cur_press) {
+		kbd_motion_key(&keyboard, time, cur_x, cur_y);
+	}
 }
 
 void
 wl_pointer_button(void *data, struct wl_pointer *wl_pointer, uint32_t serial,
                   uint32_t time, uint32_t button, uint32_t state) {
 	struct key *next_key;
-	bool press = state == WL_POINTER_BUTTON_STATE_PRESSED;
+	cur_press = state == WL_POINTER_BUTTON_STATE_PRESSED;
 
-	kbd_unpress_key(&keyboard, time);
+	if (cur_press) {
+		kbd_unpress_key(&keyboard, time);
+	} else {
+		kbd_release_key(&keyboard, time);
+	}
 
-	if (press && cur_x >= 0 && cur_y >= 0) {
+	if (cur_press && cur_x >= 0 && cur_y >= 0) {
 		next_key = kbd_get_key(&keyboard, cur_x, cur_y);
 		if (next_key) {
 			kbd_press_key(&keyboard, next_key, time);
@@ -258,9 +271,11 @@ display_handle_geometry(void *data, struct wl_output *wl_output, int x, int y,
 	keyboard.layout = &keyboard.layouts[layer];
 	keyboard.prevlayout = keyboard.layout;
 
-	zwlr_layer_surface_v1_set_size(layer_surface, 0, height);
-	zwlr_layer_surface_v1_set_exclusive_zone(layer_surface, height);
-	wl_surface_commit(draw_surf.surf);
+	if (layer_surface) {
+		zwlr_layer_surface_v1_set_size(layer_surface, 0, height);
+		zwlr_layer_surface_v1_set_exclusive_zone(layer_surface, height);
+		wl_surface_commit(draw_surf.surf);
+	}
 }
 
 static void
@@ -335,7 +350,8 @@ usage(char *argv0) {
 	        argv0);
 	fprintf(stderr, "Options:\n");
 	fprintf(stderr, "  -D         - Enable debug\n");
-	fprintf(stderr, "  -o         - Print press keys to standard output\n");
+	fprintf(stderr, "  -o         - Print pressed keys to standard output\n");
+	fprintf(stderr, "  -O         - Print intersected keys to standard output\n");
 	fprintf(stderr, "  -l         - Comma separated list of layers\n");
 	fprintf(stderr, "  -H [int]   - Height in pixels\n");
 	fprintf(stderr, "  -L [int]   - Landscape height in pixels\n");
@@ -357,6 +373,8 @@ hide(int sigint) {
 		wl_callback_destroy(draw_surf.cb);
 		draw_surf.cb = NULL;
 	}
+
+	hidden = true;
 }
 
 void
@@ -383,6 +401,24 @@ show(int sigint) {
 
 	wl_display_roundtrip(display);
 	drwsurf_flip(&draw_surf);
+
+	hidden = false;
+}
+
+void
+toggle_visibility(int sigint) {
+	signal(SIGRTMIN, toggle_visibility);
+
+	if (hidden) {
+		show(sigint);
+	} else {
+		hide(sigint);
+	}
+}
+
+void
+pipewarn(int sigint) {
+	fprintf(stderr, "wvkbd: cannot pipe data out.\n");
 }
 
 int
@@ -409,12 +445,10 @@ main(int argc, char **argv) {
 	keyboard.scheme1 = scheme1;
 	keyboard.scheme1 = scheme1;
 
-	bool starthidden = false;
-
 	int i;
 	for (i = 1; argv[i]; i++) {
 		if ((!strcmp(argv[i], "-v")) || (!strcmp(argv[i], "--version"))) {
-			printf("wvkbd-%s", VERSION);
+			printf("wvkbd-%s\n", VERSION);
 			exit(0);
 		} else if ((!strcmp(argv[i], "-h")) || (!strcmp(argv[i], "--help"))) {
 			usage(argv[0]);
@@ -445,8 +479,11 @@ main(int argc, char **argv) {
 			fc_font_pattern = estrdup(argv[++i]);
 		} else if (!strcmp(argv[i], "-o")) {
 			keyboard.print = true;
-		} else if ((!strcmp(argv[i], "-hidden")) || (!strcmp(argv[i], "--hidden"))) {
-			starthidden = true;
+		} else if (!strcmp(argv[i], "-O")) {
+			keyboard.print_intersect = true;
+		} else if ((!strcmp(argv[i], "-hidden")) ||
+		           (!strcmp(argv[i], "--hidden"))) {
+			hidden = true;
 		} else {
 			fprintf(stderr, "Invalid argument: %s\n", argv[i]);
 			usage(argv[0]);
@@ -494,8 +531,7 @@ main(int argc, char **argv) {
 	draw_ctx.font_description =
 	  pango_font_description_from_string(fc_font_pattern);
 
-
-	if (!starthidden) {
+	if (!hidden) {
 		draw_surf.surf = wl_compositor_create_surface(compositor);
 
 		layer_surface = zwlr_layer_shell_v1_get_layer_surface(
@@ -506,7 +542,7 @@ main(int argc, char **argv) {
 		zwlr_layer_surface_v1_set_exclusive_zone(layer_surface, height);
 		zwlr_layer_surface_v1_set_keyboard_interactivity(layer_surface, false);
 		zwlr_layer_surface_v1_add_listener(layer_surface, &layer_surface_listener,
-										   NULL);
+		                                   NULL);
 		wl_surface_commit(draw_surf.surf);
 
 		wl_display_roundtrip(display);
@@ -515,6 +551,8 @@ main(int argc, char **argv) {
 
 	signal(SIGUSR1, hide);
 	signal(SIGUSR2, show);
+	signal(SIGPIPE, pipewarn);
+	signal(SIGRTMIN, toggle_visibility);
 
 	while (run_display) {
 		while (wl_display_dispatch(display) != -1 && layer_surface) {

wvkbd.1

@@ -0,0 +1,71 @@
+.TH "wvkbd" "1" "2022-03-12"
+.P
+.SH NAME
+.P
+wvkbd - on-screen keyboard for wlroots
+.P
+.SH SYNOPSIS
+.P
+wvkbd-mobintl [OPTION]...
+.P
+.SH DESCRIPTION
+.P
+wvkbd is an on-screen keyboard for wlroots that sucks less.
+.P
+.SH OPTIONS
+.P
+\fB-D\fR
+.RS 4
+enable debug
+.P
+.RE
+\fB-o\fR
+.RS 4
+print pressed keys to standard output
+.P
+.RE
+\fB-O\fR
+.RS 4
+print intersected keys to standard output
+.P
+.RE
+\fB-l\fR
+.RS 4
+comma separated list of layers
+.P
+.RE
+\fB-H\fR \fIPX\fR
+.RS 4
+height in pixels
+.P
+.RE
+\fB-L\fR \fIPX\fR
+.RS 4
+landscape height in pixels
+.P
+.RE
+\fB--fn\fR \fIFONT\fR
+.RS 4
+set font (e.g: DejaVu Sans 20)
+.P
+.RE
+\fB--hidden\fR
+.RS 4
+start hidden (send SIGUSR2 to show, SIGUSR1 to hide, SIGRTMIN to toggle)
+.P
+.RE
+\fB-v\fR, \fB--version\fR
+.RS 4
+print version
+.P
+.RE
+\fB-h\fR, \fB--help\fR
+.RS 4
+show help
+.P
+.RE
+.SH AUTHORS
+.P
+Created by John Sullivan <jsullivan@csumb.edu>, maintained by the Sxmo project in
+collaboration with other open source contributors. For more information about wvkbd development, see
+<https://git.sr.ht/~proycon/wvkbd> or <https://github.com/jjsullivan5196/wvkbd>.