Implement splith/splitv

Ref #2

sway/commands.c

@@ -146,21 +146,38 @@ int cmd_set(struct sway_config *config, int argc, char **argv) {
 	return 0;
 }
 
-int cmd_log_colors(struct sway_config *config, int argc, char **argv) {
-	if (argc != 1) {
-		sway_log(L_ERROR, "Invalid log_colors command (expected 1 argument, got %d)", argc);
-		return 1;
-	}
-
-	if (strcasecmp(argv[0], "no") != 0 && strcasecmp(argv[0], "yes") != 0) {
-		sway_log(L_ERROR, "Invalid log_colors command (expected `yes` or `no`, got '%s')", argv[0]);
+int _do_split(struct sway_config *config, int argc, char **argv, int layout) {
+	if (argc != 0) {
+		sway_log(L_ERROR, "Invalid splitv command (expected 0 arguments, got %d)", argc);
 		return 1;
 	}
-
-	sway_log_colors(!strcasecmp(argv[0], "yes"));
+	swayc_t *focused = get_focused_container(&root_container);
+	swayc_t *parent = focused->parent;
+	sway_log(L_DEBUG, "Splitting %p vertically with %p", parent, focused);
+	int index = remove_container_from_parent(parent, focused);
+	swayc_t *new_container = create_container(parent, -1);
+	new_container->layout = layout;
+	new_container->weight = focused->weight;
+	new_container->width = focused->width;
+	new_container->height = focused->height;
+	new_container->x = focused->x;
+	new_container->y = focused->y;
+	focused->weight = 1;
+	focused->parent = new_container;
+	list_insert(parent->children, index, new_container);
+	list_add(new_container->children, focused);
+	focus_view(focused);
+	arrange_windows(parent, -1, -1);
 	return 0;
 }
 
+int cmd_splitv(struct sway_config *config, int argc, char **argv) {
+	return _do_split(config, argc, argv, L_VERT);
+}
+
+int cmd_splith(struct sway_config *config, int argc, char **argv) {
+	return _do_split(config, argc, argv, L_HORIZ);
+}
 
 /* Keep alphabetized */
 struct cmd_handler handlers[] = {
@@ -169,8 +186,9 @@ struct cmd_handler handlers[] = {
 	{ "exit", cmd_exit },
 	{ "focus_follows_mouse", cmd_focus_follows_mouse },
 	{ "layout", cmd_layout },
-	{ "log_colors", cmd_log_colors },
 	{ "set", cmd_set },
+	{ "splith", cmd_splith },
+	{ "splitv", cmd_splitv }
 };
 
 char **split_directive(char *line, int *argc) {

sway/layout.c

@@ -72,6 +72,7 @@ void arrange_windows(swayc_t *container, int width, int height) {
 	switch (container->layout) {
 	case L_HORIZ:
 	default:
+		sway_log(L_DEBUG, "Arranging %p horizontally", container);
 		for (i = 0; i < container->children->length; ++i) {
 			swayc_t *child = container->children->items[i];
 			double percent = child->weight / total_weight;
@@ -85,6 +86,7 @@ void arrange_windows(swayc_t *container, int width, int height) {
 		}
 		break;
 	case L_VERT:
+		sway_log(L_DEBUG, "Arranging %p vertically", container);
 		for (i = 0; i < container->children->length; ++i) {
 			swayc_t *child = container->children->items[i];
 			double percent = child->weight / total_weight;
@@ -166,6 +168,22 @@ void add_view(wlc_handle view_handle) {
 	arrange_windows(parent, -1, -1);
 }
 
+int remove_container_from_parent(swayc_t *parent, swayc_t *container) {
+	int i;
+	for (i = 0; i < parent->children->length; ++i) {
+		if (parent->children->items[i] == container) {
+			list_del(parent->children, i);
+			break;
+		}
+	}
+
+	if (parent->focused == container) {
+		parent->focused = NULL;
+	}
+
+	return i;
+}
+
 void destroy_view(swayc_t *view) {
 	if (view == NULL) {
 		sway_log(L_DEBUG, "Warning: NULL passed into destroy_view");
@@ -234,30 +252,32 @@ void add_child(swayc_t *parent, swayc_t *child) {
 	list_add(parent->children, child);
 }
 
+swayc_t *create_container(swayc_t *parent, wlc_handle handle) {
+	swayc_t *c = calloc(1, sizeof(swayc_t));
+	c->weight = 1;
+	c->handle = handle;
+	c->parent = parent;
+	c->layout = L_NONE;
+	c->type = C_CONTAINER;
+	c->children = create_list();
+	return c;
+}
+
 void add_output(wlc_handle output) {
 	sway_log(L_DEBUG, "Adding output %d", output);
 	const struct wlc_size* size = wlc_output_get_resolution(output);
 
-	swayc_t *container = calloc(1, sizeof(swayc_t));
-	container->weight = 1;
-	container->handle = output;
+	swayc_t *container = create_container(&root_container, output);
 	container->type = C_OUTPUT;
-	container->children = create_list();
-	container->parent = &root_container;
-	container->layout = L_NONE;
 	container->width = size->w;
 	container->height = size->h;
 	add_child(&root_container, container);
 
-	swayc_t *workspace = calloc(1, sizeof(swayc_t));
-	workspace->weight = 1;
-	workspace->handle = -1;
+	swayc_t *workspace = create_container(container, -1);
 	workspace->type = C_WORKSPACE;
-	workspace->parent = container;
 	workspace->width = size->w; // TODO: gaps
 	workspace->height = size->h;
 	workspace->layout = L_HORIZ; // TODO: Get default layout from config
-	workspace->children = create_list();
 	add_child(container, workspace);
 
 	if (root_container.focused == NULL) {

sway/layout.h

@@ -53,7 +53,8 @@ void focus_view(swayc_t *view);
 void arrange_windows(swayc_t *container, int width, int height);
 swayc_t *find_container(swayc_t *container, bool (*test)(swayc_t *view, void *data), void *data);
 swayc_t *get_focused_container(swayc_t *parent);
-
+int remove_container_from_parent(swayc_t *parent, swayc_t *container);
+swayc_t *create_container(swayc_t *parent, wlc_handle handle);
 swayc_t *get_swayc_for_handle(wlc_handle handle, swayc_t *parent);
 
 #endif

sway/list.c

@@ -27,6 +27,14 @@ void list_add(list_t *list, void *item) {
 	list->items[list->length++] = item;
 }
 
+void list_insert(list_t *list, int index, void *item) {
+	if (list->length == list->capacity) {
+		list->capacity += 10;
+		list->items = realloc(list->items, sizeof(void*) * list->capacity);
+	}
+	list->items[list->length++] = item;
+}
+
 void list_del(list_t *list, int index) {
 	list->length--;
 	memmove(&list->items[index], &list->items[index + 1], sizeof(void*) * (list->capacity - index - 1));

sway/list.h

@@ -10,6 +10,7 @@ typedef struct {
 list_t *create_list();
 void list_free(list_t *list);
 void list_add(list_t *list, void *item);
+void list_insert(list_t *list, int index, void *item);
 void list_del(list_t *list, int index);
 void list_cat(list_t *list, list_t *source);