Merge pull request #474 from emersion/customize-repeat-info

Make keyboard repeat info configurable

include/rootston/config.h

@@ -42,6 +42,7 @@ struct roots_keyboard_config {
 	char *layout;
 	char *variant;
 	char *options;
+	int repeat_rate, repeat_delay;
 	struct wl_list link;
 };
 

include/wlr/types/wlr_keyboard.h

@@ -51,10 +51,16 @@ struct wlr_keyboard {
 		xkb_mod_mask_t group;
 	} modifiers;
 
+	struct {
+		int32_t rate;
+		int32_t delay;
+	} repeat_info;
+
 	struct {
 		struct wl_signal key;
 		struct wl_signal modifiers;
 		struct wl_signal keymap;
+		struct wl_signal repeat_info;
 	} events;
 
 	void *data;
@@ -74,6 +80,12 @@ struct wlr_event_keyboard_key {
 
 void wlr_keyboard_set_keymap(struct wlr_keyboard *kb,
 	struct xkb_keymap *keymap);
+/**
+ * Sets the keyboard repeat info. `rate` is in key repeats/second and delay is
+ * in milliseconds.
+ */
+void wlr_keyboard_set_repeat_info(struct wlr_keyboard *kb, int32_t rate,
+	int32_t delay);
 void wlr_keyboard_led_update(struct wlr_keyboard *keyboard, uint32_t leds);
 uint32_t wlr_keyboard_get_modifiers(struct wlr_keyboard *keyboard);
 

include/wlr/types/wlr_seat.h

@@ -146,6 +146,7 @@ struct wlr_seat_keyboard_state {
 
 	struct wl_listener keyboard_destroy;
 	struct wl_listener keyboard_keymap;
+	struct wl_listener keyboard_repeat_info;
 
 	struct wl_listener surface_destroy;
 	struct wl_listener resource_destroy;

rootston/config.c

@@ -213,6 +213,10 @@ static void config_handle_keyboard(struct roots_config *config,
 		kc->variant = strdup(value);
 	} else if (strcmp(name, "options") == 0) {
 		kc->options = strdup(value);
+	} else if (strcmp(name, "repeat-rate") == 0) {
+		kc->repeat_rate = strtol(value, NULL, 10);
+	} else if (strcmp(name, "repeat-delay") == 0) {
+		kc->repeat_delay = strtol(value, NULL, 10);
 	} else {
 		wlr_log(L_ERROR, "got unknown keyboard config: %s", name);
 	}

rootston/keyboard.c

@@ -306,6 +306,12 @@ static void keyboard_config_merge(struct roots_keyboard_config *config,
 	if (config->name == NULL) {
 		config->name = fallback->name;
 	}
+	if (config->repeat_rate <= 0) {
+		config->repeat_rate = fallback->repeat_rate;
+	}
+	if (config->repeat_delay <= 0) {
+		config->repeat_delay = fallback->repeat_delay;
+	}
 }
 
 struct roots_keyboard *roots_keyboard_create(struct wlr_input_device *device,
@@ -337,8 +343,7 @@ struct roots_keyboard *roots_keyboard_create(struct wlr_input_device *device,
 	keyboard_config_merge(config, &env_config);
 	keyboard->config = config;
 
-	struct xkb_rule_names rules;
-	memset(&rules, 0, sizeof(rules));
+	struct xkb_rule_names rules = { 0 };
 	rules.rules = config->rules;
 	rules.model = config->model;
 	rules.layout = config->layout;
@@ -353,6 +358,10 @@ struct roots_keyboard *roots_keyboard_create(struct wlr_input_device *device,
 		&rules, XKB_KEYMAP_COMPILE_NO_FLAGS));
 	xkb_context_unref(context);
 
+	int repeat_rate = (config->repeat_rate > 0) ? config->repeat_rate : 25;
+	int repeat_delay = (config->repeat_delay > 0) ? config->repeat_delay : 600;
+	wlr_keyboard_set_repeat_info(device->keyboard, repeat_rate, repeat_delay);
+
 	return keyboard;
 }
 

types/wlr_keyboard.c

@@ -102,6 +102,11 @@ void wlr_keyboard_init(struct wlr_keyboard *kb,
 	wl_signal_init(&kb->events.key);
 	wl_signal_init(&kb->events.modifiers);
 	wl_signal_init(&kb->events.keymap);
+	wl_signal_init(&kb->events.repeat_info);
+
+	// Sane defaults
+	kb->repeat_info.rate = 25;
+	kb->repeat_info.delay = 600;
 }
 
 void wlr_keyboard_destroy(struct wlr_keyboard *kb) {
@@ -167,6 +172,16 @@ void wlr_keyboard_set_keymap(struct wlr_keyboard *kb,
 	wl_signal_emit(&kb->events.keymap, kb);
 }
 
+void wlr_keyboard_set_repeat_info(struct wlr_keyboard *kb, int32_t rate,
+		int32_t delay) {
+	if (kb->repeat_info.rate == rate && kb->repeat_info.delay == delay) {
+		return;
+	}
+	kb->repeat_info.rate = rate;
+	kb->repeat_info.delay = delay;
+	wl_signal_emit(&kb->events.repeat_info, kb);
+}
+
 uint32_t wlr_keyboard_get_modifiers(struct wlr_keyboard *kb) {
 	xkb_mod_mask_t mask = kb->modifiers.depressed | kb->modifiers.latched;
 	uint32_t modifiers = 0;

types/wlr_seat.c

@@ -109,10 +109,18 @@ static void seat_client_send_keymap(struct wlr_seat_client *client,
 	wl_keyboard_send_keymap(client->keyboard,
 		WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1, keyboard->keymap_fd,
 		keyboard->keymap_size);
+}
+
+static void seat_client_send_repeat_info(struct wlr_seat_client *client,
+		struct wlr_keyboard *keyboard) {
+	if (!keyboard || !client->keyboard) {
+		return;
+	}
 
 	if (wl_resource_get_version(client->keyboard) >=
 			WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION) {
-		wl_keyboard_send_repeat_info(client->keyboard, 25, 600);
+		wl_keyboard_send_repeat_info(client->keyboard,
+			keyboard->repeat_info.rate, keyboard->repeat_info.delay);
 	}
 }
 
@@ -138,8 +146,9 @@ static void wl_seat_get_keyboard(struct wl_client *client,
 	wl_resource_set_implementation(seat_client->keyboard, &wl_keyboard_impl,
 		seat_client, &wl_keyboard_destroy);
 
-	seat_client_send_keymap(seat_client,
-		seat_client->seat->keyboard_state.keyboard);
+	struct wlr_keyboard *keyboard = seat_client->seat->keyboard_state.keyboard;
+	seat_client_send_keymap(seat_client, keyboard);
+	seat_client_send_repeat_info(seat_client, keyboard);
 
 	// TODO possibly handle the case where this keyboard needs an enter
 	// right away
@@ -695,6 +704,16 @@ static void handle_keyboard_keymap(struct wl_listener *listener, void *data) {
 	}
 }
 
+static void handle_keyboard_repeat_info(struct wl_listener *listener,
+		void *data) {
+	struct wlr_seat_keyboard_state *state =
+		wl_container_of(listener, state, keyboard_repeat_info);
+	struct wlr_seat_client *client;
+	wl_list_for_each(client, &state->seat->clients, link) {
+		seat_client_send_repeat_info(client, state->keyboard);
+	}
+}
+
 static void handle_keyboard_destroy(struct wl_listener *listener, void *data) {
 	struct wlr_seat_keyboard_state *state =
 		wl_container_of(listener, state, keyboard_destroy);
@@ -713,22 +732,28 @@ void wlr_seat_set_keyboard(struct wlr_seat *seat,
 	if (seat->keyboard_state.keyboard) {
 		wl_list_remove(&seat->keyboard_state.keyboard_destroy.link);
 		wl_list_remove(&seat->keyboard_state.keyboard_keymap.link);
+		wl_list_remove(&seat->keyboard_state.keyboard_repeat_info.link);
 		seat->keyboard_state.keyboard = NULL;
 	}
 
 	if (device) {
 		assert(device->type == WLR_INPUT_DEVICE_KEYBOARD);
+
 		wl_signal_add(&device->events.destroy,
 			&seat->keyboard_state.keyboard_destroy);
 		seat->keyboard_state.keyboard_destroy.notify = handle_keyboard_destroy;
-
 		wl_signal_add(&device->keyboard->events.keymap,
 			&seat->keyboard_state.keyboard_keymap);
 		seat->keyboard_state.keyboard_keymap.notify = handle_keyboard_keymap;
+		wl_signal_add(&device->keyboard->events.repeat_info,
+			&seat->keyboard_state.keyboard_repeat_info);
+		seat->keyboard_state.keyboard_repeat_info.notify =
+			handle_keyboard_repeat_info;
 
 		struct wlr_seat_client *client;
 		wl_list_for_each(client, &seat->clients, link) {
 			seat_client_send_keymap(client, device->keyboard);
+			seat_client_send_repeat_info(client, device->keyboard);
 		}
 
 		seat->keyboard_state.keyboard = device->keyboard;