Add new command to set titlebar position

include/sway/commands.h

@@ -190,6 +190,7 @@ sway_cmd cmd_title_align;
 sway_cmd cmd_title_format;
 sway_cmd cmd_titlebar_border_thickness;
 sway_cmd cmd_titlebar_padding;
+sway_cmd cmd_titlebar_position;
 sway_cmd cmd_unbindcode;
 sway_cmd cmd_unbindswitch;
 sway_cmd cmd_unbindgesture;

include/sway/config.h

@@ -473,6 +473,11 @@ enum xwayland_mode {
 	XWAYLAND_MODE_IMMEDIATE,
 };
 
+enum titlebar_position {
+	TITLEBAR_TOP,
+	TITLEBAR_BOTTOM
+};
+
 /**
  * The configuration struct. The result of loading a config file.
  */
@@ -534,6 +539,7 @@ struct sway_config {
 	bool show_marks;
 	enum alignment title_align;
 	bool primary_selection;
+	enum titlebar_position titlebar_position;
 
 	bool tiling_drag;
 	int tiling_drag_threshold;

sway/commands.c

@@ -93,6 +93,7 @@ static const struct cmd_handler handlers[] = {
 	{ "title_align", cmd_title_align },
 	{ "titlebar_border_thickness", cmd_titlebar_border_thickness },
 	{ "titlebar_padding", cmd_titlebar_padding },
+	{ "titlebar_position", cmd_titlebar_position },
 	{ "unbindcode", cmd_unbindcode },
 	{ "unbindgesture", cmd_unbindgesture },
 	{ "unbindswitch", cmd_unbindswitch },

sway/commands/titlebar_position.c

@@ -0,0 +1,30 @@
+#include "sway/commands.h"
+#include "sway/config.h"
+#include "sway/output.h"
+#include "sway/tree/arrange.h"
+#include "sway/tree/root.h"
+
+struct cmd_results *cmd_titlebar_position(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "titlebar_position", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+
+	if (strcmp(argv[0], "top") == 0) {
+		config->titlebar_position = TITLEBAR_TOP;
+	} else if (strcmp(argv[0], "bottom") == 0) {
+		config->titlebar_position = TITLEBAR_BOTTOM;
+	} else {
+		return cmd_results_new(CMD_INVALID,
+				"Expected 'titlebar_position top|bottom'");
+	}
+
+	arrange_root();
+	for (int i = 0; i < root->outputs->length; ++i) {
+		struct sway_output *output = root->outputs->items[i];
+		output_damage_whole(output);
+	}
+
+	return cmd_results_new(CMD_SUCCESS, NULL);
+}
+

sway/config.c

@@ -271,6 +271,7 @@ static void config_defaults(struct sway_config *config) {
 	config->reading = false;
 	config->show_marks = true;
 	config->title_align = ALIGN_LEFT;
+	config->titlebar_position = TITLEBAR_TOP;
 	config->tiling_drag = true;
 	config->tiling_drag_threshold = 9;
 	config->primary_selection = true;

sway/meson.build

@@ -117,6 +117,7 @@ sway_sources = files(
 	'commands/title_format.c',
 	'commands/titlebar_border_thickness.c',
 	'commands/titlebar_padding.c',
+	'commands/titlebar_position.c',
 	'commands/unmark.c',
 	'commands/urgent.c',
 	'commands/workspace.c',