3 files changed, 27 insertions, 6 deletions

diff --git a/sway/tree/layout.c b/sway/tree/layout.c
index 07de9664..28cdc71e 100644
--- a/sway/tree/layout.c
+++ b/sway/tree/layout.c
@@ -859,7 +859,7 @@ struct sway_container *container_split(struct sway_container *child,
 	}
 	if (child->type == C_WORKSPACE && child->children->length == 0) {
 		// Special case: this just behaves like splitt
-		child->prev_layout = child->layout;
+		child->prev_split_layout = child->layout;
 		child->layout = layout;
 		return child;
 	}
@@ -870,7 +870,7 @@ struct sway_container *container_split(struct sway_container *child,
 
 	remove_gaps(child);
 
-	cont->prev_layout = L_NONE;
+	cont->prev_split_layout = L_NONE;
 	cont->width = child->width;
 	cont->height = child->height;
 	cont->x = child->x;
diff --git a/sway/tree/view.c b/sway/tree/view.c
index 9465b3a1..faaa53a1 100644
--- a/sway/tree/view.c
+++ b/sway/tree/view.c
@@ -1,5 +1,6 @@
 #define _POSIX_C_SOURCE 200809L
 #include <stdlib.h>
+#include <strings.h>
 #include <wayland-server.h>
 #include <wlr/render/wlr_renderer.h>
 #include <wlr/types/wlr_buffer.h>
@@ -456,7 +457,13 @@ static struct sway_container *select_workspace(struct sway_view *view) {
 		if (criteria->type == CT_ASSIGN_WORKSPACE) {
 			ws = workspace_by_name(criteria->target);
 			if (!ws) {
-				ws = workspace_create(NULL, criteria->target);
+				if (strcasecmp(criteria->target, "back_and_forth") == 0) {
+					if (prev_workspace_name) {
+						ws = workspace_create(NULL, prev_workspace_name);
+					}
+				} else {
+					ws = workspace_create(NULL, criteria->target);
+				}
 			}
 			break;
 		} else {
@@ -891,6 +898,15 @@ static bool find_by_mark_iterator(struct sway_container *con,
 	return con->type == C_VIEW && view_has_mark(con->sway_view, mark);
 }
 
+struct sway_view *view_find_mark(char *mark) {
+	struct sway_container *container = container_find(&root_container,
+		find_by_mark_iterator, mark);
+	if (!container) {
+		return NULL;
+	}
+	return container->sway_view;
+}
+
 bool view_find_and_unmark(char *mark) {
 	struct sway_container *container = container_find(&root_container,
 		find_by_mark_iterator, mark);
diff --git a/sway/tree/workspace.c b/sway/tree/workspace.c
index cc225e79..3fcad631 100644
--- a/sway/tree/workspace.c
+++ b/sway/tree/workspace.c
@@ -59,7 +59,7 @@ struct sway_container *workspace_create(struct sway_container *output,
 	workspace->width = output->width;
 	workspace->height = output->height;
 	workspace->name = !name ? NULL : strdup(name);
-	workspace->prev_layout = L_NONE;
+	workspace->prev_split_layout = L_NONE;
 	workspace->layout = container_get_default_layout(output);
 
 	struct sway_workspace *swayws = calloc(1, sizeof(struct sway_workspace));
@@ -250,6 +250,7 @@ struct sway_container *workspace_by_name(const char *name) {
 		current_workspace = container_parent(focus, C_WORKSPACE);
 		current_output = container_parent(focus, C_OUTPUT);
 	}
+
 	if (strcmp(name, "prev") == 0) {
 		return workspace_prev(current_workspace);
 	} else if (strcmp(name, "prev_on_output") == 0) {
@@ -260,6 +261,9 @@ struct sway_container *workspace_by_name(const char *name) {
 		return workspace_output_next(current_output);
 	} else if (strcmp(name, "current") == 0) {
 		return current_workspace;
+	} else if (strcasecmp(name, "back_and_forth") == 0) {
+		return prev_workspace_name ? container_find(&root_container,
+				_workspace_by_name, (void *)prev_workspace_name) : NULL;
 	} else {
 		return container_find(&root_container, _workspace_by_name,
 				(void *)name);
@@ -364,7 +368,8 @@ struct sway_container *workspace_prev(struct sway_container *current) {
 	return workspace_prev_next_impl(current, false);
 }
 
-bool workspace_switch(struct sway_container *workspace) {
+bool workspace_switch(struct sway_container *workspace,
+		bool no_auto_back_and_forth) {
 	if (!workspace) {
 		return false;
 	}
@@ -379,7 +384,7 @@ bool workspace_switch(struct sway_container *workspace) {
 		active_ws = container_parent(focus, C_WORKSPACE);
 	}
 
-	if (config->auto_back_and_forth
+	if (!no_auto_back_and_forth && config->auto_back_and_forth
 			&& active_ws == workspace
 			&& prev_workspace_name) {
 		struct sway_container *new_ws = workspace_by_name(prev_workspace_name);