Add workspace {prev,next}_on_output --create

This creates the next workspace if you hit the end.

include/sway/tree/workspace.h

@@ -67,11 +67,13 @@ struct sway_workspace *workspace_by_number(const char* name);
 
 struct sway_workspace *workspace_by_name(const char*);
 
-struct sway_workspace *workspace_output_next(struct sway_workspace *current);
+struct sway_workspace *workspace_output_next(
+		struct sway_workspace *current, bool create);
 
 struct sway_workspace *workspace_next(struct sway_workspace *current);
 
-struct sway_workspace *workspace_output_prev(struct sway_workspace *current);
+struct sway_workspace *workspace_output_prev(
+		struct sway_workspace *current, bool create);
 
 struct sway_workspace *workspace_prev(struct sway_workspace *current);
 

sway/commands/workspace.c

@@ -181,7 +181,9 @@ struct cmd_results *cmd_workspace(int argc, char **argv) {
 			++argv;
 		}
 
-
+		bool create = argc > 1 && strcasecmp(argv[1], "--create") == 0;
+		struct sway_seat *seat = config->handler_context.seat;
+		struct sway_workspace *current = seat_get_focused_workspace(seat);
 		struct sway_workspace *ws = NULL;
 		if (strcasecmp(argv[0], "number") == 0) {
 			if (argc < 2) {
@@ -199,12 +201,13 @@ struct cmd_results *cmd_workspace(int argc, char **argv) {
 			}
 		} else if (strcasecmp(argv[0], "next") == 0 ||
 				strcasecmp(argv[0], "prev") == 0 ||
-				strcasecmp(argv[0], "next_on_output") == 0 ||
-				strcasecmp(argv[0], "prev_on_output") == 0 ||
 				strcasecmp(argv[0], "current") == 0) {
 			ws = workspace_by_name(argv[0]);
+		} else if (strcasecmp(argv[0], "next_on_output") == 0) {
+			ws = workspace_output_next(current, create);
+		} else if (strcasecmp(argv[0], "prev_on_output") == 0) {
+			ws = workspace_output_prev(current, create);
 		} else if (strcasecmp(argv[0], "back_and_forth") == 0) {
-			struct sway_seat *seat = config->handler_context.seat;
 			if (!seat->prev_workspace_name) {
 				return cmd_results_new(CMD_INVALID,
 						"There is no previous workspace");
@@ -220,7 +223,7 @@ struct cmd_results *cmd_workspace(int argc, char **argv) {
 			free(name);
 		}
 		workspace_switch(ws, no_auto_back_and_forth);
-		seat_consider_warp_to_focus(config->handler_context.seat);
+		seat_consider_warp_to_focus(seat);
 	}
 	return cmd_results_new(CMD_SUCCESS, NULL);
 }

sway/tree/workspace.c

@@ -230,8 +230,10 @@ static void workspace_name_from_binding(const struct sway_binding * binding,
 		// not a command about workspaces
 		if (strcmp(_target, "next") == 0 ||
 				strcmp(_target, "prev") == 0 ||
-				strcmp(_target, "next_on_output") == 0 ||
-				strcmp(_target, "prev_on_output") == 0 ||
+				strncmp(_target, "next_on_output",
+					strlen("next_on_output")) == 0 ||
+				strncmp(_target, "prev_on_output",
+					strlen("next_on_output")) == 0 ||
 				strcmp(_target, "number") == 0 ||
 				strcmp(_target, "back_and_forth") == 0 ||
 				strcmp(_target, "current") == 0) {
@@ -372,11 +374,11 @@ struct sway_workspace *workspace_by_name(const char *name) {
 	if (strcmp(name, "prev") == 0) {
 		return workspace_prev(current);
 	} else if (strcmp(name, "prev_on_output") == 0) {
-		return workspace_output_prev(current);
+		return workspace_output_prev(current, false);
 	} else if (strcmp(name, "next") == 0) {
 		return workspace_next(current);
 	} else if (strcmp(name, "next_on_output") == 0) {
-		return workspace_output_next(current);
+		return workspace_output_next(current, false);
 	} else if (strcmp(name, "current") == 0) {
 		return current;
 	} else if (strcasecmp(name, "back_and_forth") == 0) {
@@ -397,11 +399,18 @@ struct sway_workspace *workspace_by_name(const char *name) {
  * otherwise the next one is returned.
  */
 static struct sway_workspace *workspace_output_prev_next_impl(
-		struct sway_output *output, int dir) {
+		struct sway_output *output, int dir, bool create) {
 	struct sway_seat *seat = input_manager_current_seat();
 	struct sway_workspace *workspace = seat_get_focused_workspace(seat);
 
 	int index = list_find(output->workspaces, workspace);
+	if (!workspace_is_empty(workspace) && create &&
+			(index + dir < 0 || index + dir == output->workspaces->length)) {
+		struct sway_output *output = workspace->output;
+		char *next = workspace_next_name(output->wlr_output->name);
+		workspace_create(output, next);
+		free(next);
+	}
 	size_t new_index = wrap(index + dir, output->workspaces->length);
 	return output->workspaces->items[new_index];
 }
@@ -432,16 +441,18 @@ static struct sway_workspace *workspace_prev_next_impl(
 	}
 }
 
-struct sway_workspace *workspace_output_next(struct sway_workspace *current) {
-	return workspace_output_prev_next_impl(current->output, 1);
+struct sway_workspace *workspace_output_next(
+		struct sway_workspace *current, bool create) {
+	return workspace_output_prev_next_impl(current->output, 1, create);
 }
 
 struct sway_workspace *workspace_next(struct sway_workspace *current) {
 	return workspace_prev_next_impl(current, 1);
 }
 
-struct sway_workspace *workspace_output_prev(struct sway_workspace *current) {
-	return workspace_output_prev_next_impl(current->output, -1);
+struct sway_workspace *workspace_output_prev(
+		struct sway_workspace *current, bool create) {
+	return workspace_output_prev_next_impl(current->output, -1, create);
 }
 
 struct sway_workspace *workspace_prev(struct sway_workspace *current) {