Add border <none|normal|toggle|pixel> config

include/config.h

@@ -203,6 +203,8 @@ struct sway_config {
 	list_t *config_chain;
 	const char *current_config;
 
+	enum swayc_border_types border;
+	int border_thickness;
 	enum edge_border_types hide_edge_borders;
 
 	// border colors

include/container.h

@@ -37,9 +37,9 @@ enum swayc_layouts {
 };
 
 enum swayc_border_types {
-    B_NONE,             /**< No border */
-    B_PIXEL,            /**< 1px border */
-    B_NORMAL            /**< Normal border with title bar */
+	B_NONE,             /**< No border */
+	B_PIXEL,            /**< 1px border */
+	B_NORMAL            /**< Normal border with title bar */
 };
 
 /**

sway/commands.c

@@ -43,6 +43,7 @@ static sway_cmd cmd_assign;
 static sway_cmd cmd_bar;
 static sway_cmd cmd_bindcode;
 static sway_cmd cmd_bindsym;
+static sway_cmd cmd_border;
 static sway_cmd cmd_debuglog;
 static sway_cmd cmd_exec;
 static sway_cmd cmd_exec_always;
@@ -346,6 +347,55 @@ static struct cmd_results *cmd_bindcode(int argc, char **argv) {
 	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }
 
+static struct cmd_results *cmd_border(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "border", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+
+	if (argc > 2) {
+		return cmd_results_new(CMD_FAILURE, "border",
+			"Expected 'border <normal|pixel|none|toggle> [<n>]");
+	}
+
+	enum swayc_border_types border = config->border;
+
+	if (strcasecmp(argv[0], "none") == 0) {
+		border = B_NONE;
+	} else if (strcasecmp(argv[0], "normal") == 0) {
+		border = B_NORMAL;
+	} else if (strcasecmp(argv[0], "pixel") == 0) {
+		border = B_PIXEL;
+	} else if (strcasecmp(argv[0], "toggle") == 0) {
+		switch (config->border) {
+		case B_NONE:
+			border = B_PIXEL;
+			break;
+		case B_NORMAL:
+			border = B_NONE;
+			break;
+		case B_PIXEL:
+			border = B_NORMAL;
+			break;
+		}
+	} else {
+		return cmd_results_new(CMD_FAILURE, "border",
+			"Expected 'border <normal|pixel|none|toggle>");
+	}
+
+	if (argc == 2 && (border == B_NORMAL || border == B_PIXEL)) {
+		int thickness = (int)strtol(argv[1], NULL, 10);
+		if (errno == ERANGE || thickness < 0) {
+			errno = 0;
+			return cmd_results_new(CMD_INVALID, "border", "Number is out out of range.");
+		}
+		config->border_thickness = thickness;
+	}
+
+	config->border = border;
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
 static struct cmd_results *cmd_exec_always(int argc, char **argv) {
 	struct cmd_results *error = NULL;
 	if (!config->active) return cmd_results_new(CMD_DEFER, NULL, NULL);
@@ -2074,6 +2124,7 @@ static struct cmd_handler handlers[] = {
 	{ "bar", cmd_bar },
 	{ "bindcode", cmd_bindcode },
 	{ "bindsym", cmd_bindsym },
+	{ "border", cmd_border },
 	{ "debuglog", cmd_debuglog },
 	{ "default_orientation", cmd_orientation },
 	{ "exec", cmd_exec },

sway/config.c

@@ -182,6 +182,9 @@ static void config_defaults(struct sway_config *config) {
 	config->config_chain = create_list();
 	config->current_config = NULL;
 
+	// borders
+	config->border = B_NORMAL;
+	config->border_thickness = 2;
 	config->hide_edge_borders = E_NONE;
 
 	// border colors

sway/sway.5.txt

@@ -43,6 +43,15 @@ The following commands may only be used in the configuration file.
 The following commands cannot be used directly in the configuration file.
 They are expected to be used with **bindsym** or at runtime through **swaymsg**(1).
 
+**border** <normal|pixel> [<n>]::
+	Set border style for windows. _normal_ includes a border of thickness _n_ and
+	a title bar. _pixel_ is just the border without title bar. Default is _normal_
+	with border thickness 2.
+
+**border** <none|toggle>::
+	Set border style to _none_ or _toggle_ between the available border styles:
+	_normal_, _pixel_, _none_.
+
 **exit**::
 	Exit sway and end your Wayland session.