Per-keyboard configuration

include/rootston/config.h

@@ -26,6 +26,17 @@ struct binding_config {
 	struct wl_list link;
 };
 
+struct keyboard_config {
+	char *name;
+	uint32_t meta_key;
+	char *rules;
+	char *model;
+	char *layout;
+	char *variant;
+	char *options;
+	struct wl_list link;
+};
+
 struct roots_config {
 	bool xwayland;
 	// TODO: Multiple cursors, multiseat
@@ -34,13 +45,10 @@ struct roots_config {
 		struct wlr_box *mapped_box;
 	} cursor;
 
-	struct {
-		uint32_t meta_key;
-	} keyboard;
-
 	struct wl_list outputs;
 	struct wl_list devices;
 	struct wl_list bindings;
+	struct wl_list keyboards;
 	char *config_path;
 	char *startup_cmd;
 };
@@ -63,4 +71,11 @@ struct output_config *config_get_output(struct roots_config *config,
 struct device_config *config_get_device(struct roots_config *config,
 	struct wlr_input_device *device);
 
+/**
+ * Get configuration for the keyboard. If the keyboard is not configured,
+ * returns NULL.
+ */
+struct keyboard_config *config_get_keyboard(struct roots_config *config,
+	struct wlr_input_device *device);
+
 #endif

rootston/config.c

@@ -149,6 +149,7 @@ void add_binding_config(struct wl_list *bindings, const char* combination,
 
 static const char *output_prefix = "output:";
 static const char *device_prefix = "device:";
+static const char *keyboard_prefix = "keyboard:";
 
 static int config_ini_handler(void *user, const char *section, const char *name,
 		const char *value) {
@@ -219,9 +220,9 @@ static int config_ini_handler(void *user, const char *section, const char *name,
 		}
 	} else if (strncmp(device_prefix, section, strlen(device_prefix)) == 0) {
 		const char *device_name = section + strlen(device_prefix);
+
 		struct device_config *dc;
 		bool found = false;
-
 		wl_list_for_each(dc, &config->devices, link) {
 			if (strcmp(dc->name, device_name) == 0) {
 				found = true;
@@ -244,12 +245,39 @@ static int config_ini_handler(void *user, const char *section, const char *name,
 		} else {
 			wlr_log(L_ERROR, "got unknown device config: %s", name);
 		}
-	} else if (strcmp(section, "keyboard") == 0) {
+	} else if (strncmp(keyboard_prefix, section, strlen(keyboard_prefix)) == 0) {
+		const char *device_name = section + strlen(keyboard_prefix);
+
+		struct keyboard_config *kc;
+		bool found = false;
+		wl_list_for_each(kc, &config->keyboards, link) {
+			if (strcmp(kc->name, device_name) == 0) {
+				found = true;
+				break;
+			}
+		}
+
+		if (!found) {
+			kc = calloc(1, sizeof(struct keyboard_config));
+			kc->name = strdup(device_name);
+			wl_list_insert(&config->keyboards, &kc->link);
+		}
+
 		if (strcmp(name, "meta-key") == 0) {
-			config->keyboard.meta_key = parse_modifier(value);
-			if (config->keyboard.meta_key == 0) {
+			kc->meta_key = parse_modifier(value);
+			if (kc->meta_key == 0) {
 				wlr_log(L_ERROR, "got unknown meta key: %s", name);
 			}
+		} else if (strcmp(name, "rules") == 0) {
+			kc->rules = strdup(value);
+		} else if (strcmp(name, "model") == 0) {
+			kc->model = strdup(value);
+		} else if (strcmp(name, "layout") == 0) {
+			kc->layout = strdup(value);
+		} else if (strcmp(name, "variant") == 0) {
+			kc->variant = strdup(value);
+		} else if (strcmp(name, "options") == 0) {
+			kc->options = strdup(value);
 		} else {
 			wlr_log(L_ERROR, "got unknown keyboard config: %s", name);
 		}
@@ -271,6 +299,7 @@ struct roots_config *parse_args(int argc, char *argv[]) {
 	config->xwayland = true;
 	wl_list_init(&config->outputs);
 	wl_list_init(&config->devices);
+	wl_list_init(&config->keyboards);
 	wl_list_init(&config->bindings);
 
 	int c;
@@ -305,10 +334,12 @@ struct roots_config *parse_args(int argc, char *argv[]) {
 
 	if (result == -1) {
 		wlr_log(L_DEBUG, "No config file found. Using sensible defaults.");
-		config->keyboard.meta_key = WLR_MODIFIER_LOGO;
 		add_binding_config(&config->bindings, "Logo+Shift+E", "exit");
 		add_binding_config(&config->bindings, "Ctrl+q", "close");
 		add_binding_config(&config->bindings, "Alt+Tab", "next_window");
+		struct keyboard_config *kc = calloc(1, sizeof(struct keyboard_config));
+		kc->meta_key = WLR_MODIFIER_LOGO;
+		wl_list_insert(&config->keyboards, &kc->link);
 	} else if (result == -2) {
 		wlr_log(L_ERROR, "Could not allocate memory to parse config file");
 		exit(1);
@@ -335,6 +366,17 @@ void roots_config_destroy(struct roots_config *config) {
 		free(dc);
 	}
 
+	struct keyboard_config *kc, *ktmp = NULL;
+	wl_list_for_each_safe(kc, ktmp, &config->bindings, link) {
+		free(kc->name);
+		free(kc->rules);
+		free(kc->model);
+		free(kc->layout);
+		free(kc->variant);
+		free(kc->options);
+		free(kc);
+	}
+
 	struct binding_config *bc, *btmp = NULL;
 	wl_list_for_each_safe(bc, btmp, &config->bindings, link) {
 		free(bc->keysyms);
@@ -371,3 +413,18 @@ struct device_config *config_get_device(struct roots_config *config,
 
 	return NULL;
 }
+
+struct keyboard_config *config_get_keyboard(struct roots_config *config,
+		struct wlr_input_device *device) {
+	struct keyboard_config *kc;
+	struct keyboard_config *default_kc = NULL;
+	wl_list_for_each(kc, &config->keyboards, link) {
+		if (strcmp(kc->name, "*") == 0) {
+			default_kc = kc;
+		} else if (strcmp(kc->name, device->name) == 0) {
+			return kc;
+		}
+	}
+
+	return default_kc;
+}

rootston/cursor.c

@@ -215,8 +215,14 @@ static void handle_cursor_axis(struct wl_listener *listener, void *data) {
 		event->orientation, event->delta);
 }
 
-static bool is_meta_pressed(struct roots_input *input) {
-	uint32_t meta_key = input->server->config->keyboard.meta_key;
+static bool is_meta_pressed(struct roots_input *input,
+		struct wlr_input_device *device) {
+	struct keyboard_config *config = config_get_keyboard(input->server->config,
+		device);
+	uint32_t meta_key = 0;
+	if (config != NULL) {
+		meta_key = config->meta_key;
+	}
 	if (meta_key == 0) {
 		return false;
 	}
@@ -241,7 +247,7 @@ static void do_cursor_button_press(struct roots_input *input,
 	struct roots_view *view = view_at(desktop,
 		input->cursor->x, input->cursor->y, &surface, &sx, &sy);
 
-	if (state == WLR_BUTTON_PRESSED && view && is_meta_pressed(input)) {
+	if (state == WLR_BUTTON_PRESSED && view && is_meta_pressed(input, device)) {
 		set_view_focus(input, desktop, view);
 
 		switch (button) {

rootston/keyboard.c

@@ -137,13 +137,33 @@ void keyboard_add(struct wlr_input_device *device, struct roots_input *input) {
 	wl_signal_add(&device->keyboard->events.key, &keyboard->key);
 	wl_list_insert(&input->keyboards, &keyboard->link);
 
+	struct keyboard_config *config = config_get_keyboard(input->config,
+		device);
+
 	struct xkb_rule_names rules;
 	memset(&rules, 0, sizeof(rules));
+	if (config != NULL) {
+		rules.rules = config->rules;
+		rules.model = config->model;
+		rules.layout = config->layout;
+		rules.variant = config->variant;
+		rules.options = config->options;
+	}
+	if (rules.rules == NULL) {
 		rules.rules = getenv("XKB_DEFAULT_RULES");
+	}
+	if (rules.model == NULL) {
 		rules.model = getenv("XKB_DEFAULT_MODEL");
+	}
+	if (rules.layout == NULL) {
 		rules.layout = getenv("XKB_DEFAULT_LAYOUT");
+	}
+	if (rules.variant == NULL) {
 		rules.variant = getenv("XKB_DEFAULT_VARIANT");
+	}
+	if (rules.options == NULL) {
 		rules.options = getenv("XKB_DEFAULT_OPTIONS");
+	}
 	struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
 	if (context == NULL) {
 		wlr_log(L_ERROR, "Cannot create XKB context");

rootston/rootston.ini.example

@@ -29,7 +29,7 @@ map-to-output = VGA-1
 # Restrict cursor movements for this mouse to concrete rectangle
 geometry = 2500x800
 
-[keyboard]
+[keyboard:*]
 meta-key = Logo
 
 # Keybindings