added 'disable_titlebar' option

include/sway/commands.h

@@ -124,6 +124,7 @@ sway_cmd cmd_create_output;
 sway_cmd cmd_default_border;
 sway_cmd cmd_default_floating_border;
 sway_cmd cmd_default_orientation;
+sway_cmd cmd_disable_titlebar;
 sway_cmd cmd_exec;
 sway_cmd cmd_exec_always;
 sway_cmd cmd_exit;

include/sway/config.h

@@ -540,6 +540,7 @@ struct sway_config {
 	bool validating;
 	bool auto_back_and_forth;
 	bool show_marks;
+	bool disable_titlebar;
 	enum alignment title_align;
 	bool primary_selection;
 

sway/commands.c

@@ -57,6 +57,7 @@ static const struct cmd_handler handlers[] = {
 	{ "client.urgent", cmd_client_urgent },
 	{ "default_border", cmd_default_border },
 	{ "default_floating_border", cmd_default_floating_border },
+	{ "disable_titlebar", cmd_disable_titlebar },
 	{ "exec", cmd_exec },
 	{ "exec_always", cmd_exec_always },
 	{ "floating_maximum_size", cmd_floating_maximum_size },

sway/commands/disable_titlebar.c

@@ -0,0 +1,15 @@
+#include "sway/commands.h"
+#include "sway/config.h"
+#include "util.h"
+
+struct cmd_results *cmd_disable_titlebar(int argc, char **argv) {
+    struct cmd_results *error = NULL;
+    if ((error = checkarg(argc, "disable_titlebar", EXPECTED_EQUAL_TO, 1))) {
+        return error;
+    }
+
+    config->disable_titlebar = parse_boolean(argv[0], config->disable_titlebar);
+
+    return cmd_results_new(CMD_SUCCESS, NULL);
+}
+

sway/config.c

@@ -278,6 +278,7 @@ static void config_defaults(struct sway_config *config) {
 	config->auto_back_and_forth = false;
 	config->reading = false;
 	config->show_marks = true;
+	config->disable_titlebar = false;
 	config->title_align = ALIGN_LEFT;
 	config->tiling_drag = true;
 	config->tiling_drag_threshold = 9;

sway/meson.build

@@ -50,6 +50,7 @@ sway_sources = files(
 	'commands/default_border.c',
 	'commands/default_floating_border.c',
 	'commands/default_orientation.c',
+        'commands/disable_titlebar.c',
 	'commands/exit.c',
 	'commands/exec.c',
 	'commands/exec_always.c',

sway/sway.5.scd

@@ -732,6 +732,9 @@ The default colors are:
 	should be greater than titlebar_border_thickness. If _vertical_ value is
 	not specified it is set to the _horizontal_ value.
 
+*disable_titlebar* yes|no.
+	Remove titlebar. Default is _no_.
+
 *for_window* <criteria> <command>
 	Whenever a window that matches _criteria_ appears, run list of commands.
 	See *CRITERIA* for more details.

sway/tree/container.c

@@ -726,6 +726,10 @@ void container_update_representation(struct sway_container *con) {
 }
 
 size_t container_titlebar_height(void) {
+	if(config->disable_titlebar) {
+		return 0;
+	}
+
 	return config->font_height + config->titlebar_v_padding * 2;
 }