focus: support focus_wrapping workspace

Following i3 support: https://github.com/i3/i3/pull/3407

include/sway/config.h

@@ -409,7 +409,8 @@ enum focus_follows_mouse_mode {
 enum focus_wrapping_mode {
 	WRAP_NO,
 	WRAP_YES,
-	WRAP_FORCE
+	WRAP_FORCE,
+	WRAP_WORKSPACE
 };
 
 enum mouse_warping_mode {

sway/commands/focus.c

@@ -160,7 +160,8 @@ static struct sway_node *node_get_in_direction_tiling(
 	// Check a different output
 	struct sway_output *output = container->workspace->output;
 	struct sway_output *new_output = output_get_in_direction(output, dir);
-	if (new_output) {
+	if ((config->focus_wrapping != WRAP_WORKSPACE ||
+				container->node.type == N_WORKSPACE) && new_output) {
 		return get_node_in_output_direction(new_output, dir);
 	}
 

sway/commands/focus_wrapping.c

@@ -11,6 +11,8 @@ struct cmd_results *cmd_focus_wrapping(int argc, char **argv) {
 
 	if (strcasecmp(argv[0], "force") == 0) {
 		config->focus_wrapping = WRAP_FORCE;
+	} else if (strcasecmp(argv[0], "workspace") == 0) {
+		config->focus_wrapping = WRAP_WORKSPACE;
 	} else if (parse_boolean(argv[0], config->focus_wrapping == WRAP_YES)) {
 		config->focus_wrapping = WRAP_YES;
 	} else {

sway/sway.5.scd

@@ -551,14 +551,16 @@ The default colors are:
 	If set to _smart_, the window will become focused only if it is already
 	visible, otherwise the urgent state will be set. Default is _smart_.
 
-*focus_wrapping* yes|no|force
+*focus_wrapping* yes|no|force|workspace
 	This option determines what to do when attempting to focus over the edge
 	of a container. If set to _no_, the focused container will retain focus,
 	if there are no other containers in the direction. If set to _yes_, focus
 	will be wrapped to the opposite edge of the container, if there are no
 	other containers in the direction. If set to _force_, focus will be wrapped
 	to the opposite edge of the container, even if there are other containers
-	in the direction. Default is _yes_.
+	in the direction. If set to _workspace_, focus will wrap like in the _yes_
+	case and additionally wrap when moving outside of workspaces boundaries.
+	Default is _yes_.
 
 *font* [pango:]<font>
 	Sets font to use for the title bars. To enable support for pango markup,