Parse bindings in config, execute bindings

3 files changed, 94 insertions, 8 deletions

diff --git a/include/rootston/config.h b/include/rootston/config.h
index 0832d88d..deff7578 100644
--- a/include/rootston/config.h
+++ b/include/rootston/config.h
@@ -18,6 +18,17 @@ struct device_config {
 	struct wl_list link;
 };
 
+enum binding_config_action {
+	BINDING_CONFIG_ACTION_QUIT,
+};
+
+struct binding_config {
+	xkb_keysym_t *keysyms;
+	size_t keysyms_len;
+	enum binding_config_action action;
+	struct wl_list link;
+};
+
 struct roots_config {
 	// TODO: Multiple cursors, multiseat
 	struct {
@@ -27,6 +38,7 @@ struct roots_config {
 
 	struct wl_list outputs;
 	struct wl_list devices;
+	struct wl_list bindings;
 	char *config_path;
 };
 
diff --git a/rootston/config.c b/rootston/config.c
index 3280c6d1..5c889975 100644
--- a/rootston/config.c
+++ b/rootston/config.c
@@ -171,6 +171,45 @@ 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, "bindings") == 0) {
+		struct binding_config *bc = calloc(1, sizeof(struct binding_config));
+		wl_list_insert(&config->bindings, &bc->link);
+
+		if (strcmp(value, "quit") == 0) {
+			bc->action = BINDING_CONFIG_ACTION_QUIT;
+		} else {
+			wlr_log(L_ERROR, "got unknown key binding action: %s", value);
+			wl_list_remove(&bc->link);
+			free(bc);
+			return 1;
+		}
+
+		bc->keysyms_len = 1;
+		char *symnames = strdup(name);
+		for (char *c = symnames; *c != '\0'; c++) {
+			if (*c == '+') {
+				*c = '\0';
+				bc->keysyms_len++;
+			}
+		}
+
+		bc->keysyms = calloc(1, bc->keysyms_len * sizeof(xkb_keysym_t));
+		char *symname = symnames;
+		for (size_t i = 0; i < bc->keysyms_len; i++) {
+			xkb_keysym_t sym = xkb_keysym_from_name(symname,
+				XKB_KEYSYM_NO_FLAGS);
+			if (sym == XKB_KEY_NoSymbol) {
+				wlr_log(L_ERROR, "got unknown key binding symbol: %s", symname);
+				wl_list_remove(&bc->link);
+				free(bc->keysyms);
+				free(bc);
+				break;
+			}
+			bc->keysyms[i] = sym;
+			symname += strlen(symname) + 1;
+		}
+
+		free(symnames);
 	} else {
 		wlr_log(L_ERROR, "got unknown config section: %s", section);
 	}
@@ -182,6 +221,15 @@ struct roots_config *parse_args(int argc, char *argv[]) {
 	struct roots_config *config = calloc(1, sizeof(struct roots_config));
 	wl_list_init(&config->outputs);
 	wl_list_init(&config->devices);
+	wl_list_init(&config->bindings);
+
+	// TEMPORARY, probably
+	struct binding_config *bc = calloc(1, sizeof(struct binding_config));
+	wl_list_insert(&config->bindings, &bc->link);
+	bc->action = BINDING_CONFIG_ACTION_QUIT;
+	bc->keysyms_len = 1;
+	bc->keysyms = calloc(1, sizeof(xkb_keysym_t));
+	bc->keysyms[0] = XKB_KEY_Escape;
 
 	int c;
 	while ((c = getopt(argc, argv, "C:h")) != -1) {
@@ -238,6 +286,8 @@ void roots_config_destroy(struct roots_config *config) {
 		free(dc);
 	}
 
+	// TODO: free bindings
+
 	free(config->config_path);
 	free(config->cursor.mapped_output);
 	free(config->cursor.mapped_box);
diff --git a/rootston/keyboard.c b/rootston/keyboard.c
index 81d564d5..79295ab4 100644
--- a/rootston/keyboard.c
+++ b/rootston/keyboard.c
@@ -20,23 +20,29 @@ static ssize_t keyboard_pressed_keysym_index(struct roots_keyboard *keyboard,
 	return -1;
 }
 
-static void keyboard_keysym_press(struct roots_keyboard *keyboard,
-		xkb_keysym_t keysym) {
+static void keyboard_binding_execute(struct roots_keyboard *keyboard,
+		struct binding_config *bc) {
 	struct roots_server *server = keyboard->input->server;
+	switch (bc->action) {
+	case BINDING_CONFIG_ACTION_QUIT:
+		wl_display_terminate(server->wl_display);
+		break;
+	}
+}
 
+static void keyboard_keysym_press(struct roots_keyboard *keyboard,
+		xkb_keysym_t keysym) {
 	ssize_t i = keyboard_pressed_keysym_index(keyboard, keysym);
 	if (i < 0) {
-		i = keyboard_pressed_keysym_index(keyboard, 0);
+		i = keyboard_pressed_keysym_index(keyboard, XKB_KEY_NoSymbol);
 		if (i >= 0) {
 			keyboard->pressed_keysyms[i] = keysym;
 		}
 	}
 
-	if (keysym == XKB_KEY_Escape) {
-		// TEMPORARY, probably
-		wl_display_terminate(server->wl_display);
-	} else if (keysym >= XKB_KEY_XF86Switch_VT_1 &&
+	if (keysym >= XKB_KEY_XF86Switch_VT_1 &&
 			keysym <= XKB_KEY_XF86Switch_VT_12) {
+		struct roots_server *server = keyboard->input->server;
 		if (wlr_backend_is_multi(server->backend)) {
 			struct wlr_session *session =
 				wlr_multi_get_session(server->backend);
@@ -45,6 +51,24 @@ static void keyboard_keysym_press(struct roots_keyboard *keyboard,
 				wlr_session_change_vt(session, vt);
 			}
 		}
+		return;
+	}
+
+	struct wl_list *bindings = &keyboard->input->server->config->bindings;
+	struct binding_config *bc;
+	wl_list_for_each(bc, bindings, link) {
+		bool ok = true;
+		for (size_t i = 0; i < bc->keysyms_len; i++) {
+			ssize_t j = keyboard_pressed_keysym_index(keyboard, bc->keysyms[i]);
+			if (j < 0) {
+				ok = false;
+				break;
+			}
+		}
+
+		if (ok) {
+			keyboard_binding_execute(keyboard, bc);
+		}
 	}
 }
 
@@ -52,7 +76,7 @@ static void keyboard_keysym_release(struct roots_keyboard *keyboard,
 		xkb_keysym_t keysym) {
 	ssize_t i = keyboard_pressed_keysym_index(keyboard, keysym);
 	if (i >= 0) {
-		keyboard->pressed_keysyms[i] = 0;
+		keyboard->pressed_keysyms[i] = XKB_KEY_NoSymbol;
 	}
 }