Correctly determine default layout

include/layout.h

@@ -67,4 +67,9 @@ void recursive_resize(swayc_t *container, double amount, enum wlc_resize_edge ed
 void layout_log(const swayc_t *c, int depth);
 void swayc_log(log_importance_t verbosity, swayc_t *cont, const char* format, ...) __attribute__((format(printf,3,4)));
 
+/**
+ * Get default layout.
+ */
+enum swayc_layouts default_layout(swayc_t *output);
+
 #endif

sway/commands.c

@@ -1760,9 +1760,8 @@ static struct cmd_results *cmd_layout(int argc, char **argv) {
 	}
 
 	if (strcasecmp(argv[0], "default") == 0) {
-		// TODO: determine default from default_orientation and
-		// cmd_workspace_layout
-		parent->layout = L_HORIZ;
+		swayc_t *output = swayc_parent_by_type(parent, C_OUTPUT);
+		parent->layout = default_layout(output);
 	} else if (strcasecmp(argv[0], "tabbed") == 0) {
 		if (parent->type != C_CONTAINER) {
 			parent = new_container(parent, L_TABBED);

sway/config.c

@@ -160,7 +160,7 @@ static void config_defaults(struct sway_config *config) {
 	config->dragging_key = M_LEFT_CLICK;
 	config->resizing_key = M_RIGHT_CLICK;
 	config->floating_scroll = FSB_GAPS_INNER;
-	config->default_layout = L_HORIZ;
+	config->default_layout = L_NONE;
 	config->default_orientation = L_NONE;
 	config->font = strdup("monospace 10");
 	config->font_height = get_font_text_height(config->font);

sway/container.c

@@ -163,16 +163,8 @@ swayc_t *new_workspace(swayc_t *output, const char *name) {
 	sway_log(L_DEBUG, "Added workspace %s for output %u", name, (unsigned int)output->handle);
 	swayc_t *workspace = new_swayc(C_WORKSPACE);
 
-	// TODO: default_layout
-	if (config->default_layout != L_NONE) {
-		workspace->layout = config->default_layout;
-	} else if (config->default_orientation != L_NONE) {
-		workspace->layout = config->default_orientation;
-	} else if (output->width >= output->height) {
-		workspace->layout = L_HORIZ;
-	} else {
-		workspace->layout = L_VERT;
-	}
+	workspace->layout = default_layout(output);
+
 	workspace->x = output->x;
 	workspace->y = output->y;
 	workspace->width = output->width;

sway/layout.c

@@ -993,3 +993,15 @@ void recursive_resize(swayc_t *container, double amount, enum wlc_resize_edge ed
 		}
 	}
 }
+
+enum swayc_layouts default_layout(swayc_t *output) {
+	if (config->default_layout != L_NONE) {
+		return config->default_layout;
+	} else if (config->default_orientation != L_NONE) {
+		return config->default_orientation;
+	} else if (output->width >= output->height) {
+		return L_HORIZ;
+	} else {
+		return L_VERT;
+	}
+}