diff --git a/mode-tree.c b/mode-tree.c
index 24cbea04..508e870c 100644
--- a/mode-tree.c
+++ b/mode-tree.c
@@ -58,6 +58,7 @@ struct mode_tree_data {
mode_tree_menu_cb menucb;
mode_tree_height_cb heightcb;
mode_tree_key_cb keycb;
+ mode_tree_swap_cb swapcb;
struct mode_tree_list children;
struct mode_tree_list saved;
@@ -287,6 +288,35 @@ mode_tree_down(struct mode_tree_data *mtd, int wrap)
return (1);
}
+static void
+mode_tree_swap(struct mode_tree_data *mtd, int direction)
+{
+ u_int current_depth = mtd->line_list[mtd->current].depth;
+ u_int swap_with, swap_with_depth;
+
+ if (mtd->swapcb == NULL)
+ return;
+
+ /* Find the next line at the same depth with the same parent . */
+ swap_with = mtd->current;
+ do {
+ if (direction < 0 && swap_with < (u_int)-direction)
+ return;
+ if (direction > 0 && swap_with + direction >= mtd->line_size)
+ return;
+ swap_with += direction;
+ swap_with_depth = mtd->line_list[swap_with].depth;
+ } while (swap_with_depth > current_depth);
+ if (swap_with_depth != current_depth)
+ return;
+
+ if (mtd->swapcb(mtd->line_list[mtd->current].item->itemdata,
+ mtd->line_list[swap_with].item->itemdata)) {
+ mtd->current = swap_with;
+ mode_tree_build(mtd);
+ }
+}
+
void *
mode_tree_get_current(struct mode_tree_data *mtd)
{
@@ -410,9 +440,9 @@ struct mode_tree_data *
mode_tree_start(struct window_pane *wp, struct args *args,
mode_tree_build_cb buildcb, mode_tree_draw_cb drawcb,
mode_tree_search_cb searchcb, mode_tree_menu_cb menucb,
- mode_tree_height_cb heightcb, mode_tree_key_cb keycb, void *modedata,
- const struct menu_item *menu, const char **sort_list, u_int sort_size,
- struct screen **s)
+ mode_tree_height_cb heightcb, mode_tree_key_cb keycb,
+ mode_tree_swap_cb swapcb, void *modedata, const struct menu_item *menu,
+ const char **sort_list, u_int sort_size, struct screen **s)
{
struct mode_tree_data *mtd;
const char *sort;
@@ -455,6 +485,7 @@ mode_tree_start(struct window_pane *wp, struct args *args,
mtd->menucb = menucb;
mtd->heightcb = heightcb;
mtd->keycb = keycb;
+ mtd->swapcb = swapcb;
TAILQ_INIT(&mtd->children);
@@ -1147,6 +1178,14 @@ mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
case 'n'|KEYC_CTRL:
mode_tree_down(mtd, 1);
break;
+ case KEYC_UP|KEYC_SHIFT:
+ case 'K':
+ mode_tree_swap(mtd, -1);
+ break;
+ case KEYC_DOWN|KEYC_SHIFT:
+ case 'J':
+ mode_tree_swap(mtd, 1);
+ break;
case KEYC_PPAGE:
case 'b'|KEYC_CTRL:
for (i = 0; i < mtd->height; i++) {
diff --git a/tmux.1 b/tmux.1
index 483e3987..1f871d88 100644
--- a/tmux.1
+++ b/tmux.1
@@ -2715,6 +2715,8 @@ The following keys may be used in tree mode:
.It Li "Enter" Ta "Choose selected item"
.It Li "Up" Ta "Select previous item"
.It Li "Down" Ta "Select next item"
+.It Li "S-Up" Ta "Swap the current window with the previous one"
+.It Li "S-Down" Ta "Swap the current window with the next one"
.It Li "+" Ta "Expand selected item"
.It Li "-" Ta "Collapse selected item"
.It Li "M-+" Ta "Expand all items"
diff --git a/tmux.h b/tmux.h
index 0ad4cb89..4abb4eb0 100644
--- a/tmux.h
+++ b/tmux.h
@@ -3326,6 +3326,7 @@ typedef int (*mode_tree_search_cb)(void *, void *, const char *);
typedef void (*mode_tree_menu_cb)(void *, struct client *, key_code);
typedef u_int (*mode_tree_height_cb)(void *, u_int);
typedef key_code (*mode_tree_key_cb)(void *, void *, u_int);
+typedef int (*mode_tree_swap_cb)(void *, void *);
typedef void (*mode_tree_each_cb)(void *, void *, struct client *, key_code);
u_int mode_tree_count_tagged(struct mode_tree_data *);
void *mode_tree_get_current(struct mode_tree_data *);
@@ -3340,8 +3341,9 @@ void mode_tree_up(struct mode_tree_data *, int);
int mode_tree_down(struct mode_tree_data *, int);
struct mode_tree_data *mode_tree_start(struct window_pane *, struct args *,
mode_tree_build_cb, mode_tree_draw_cb, mode_tree_search_cb,
- mode_tree_menu_cb, mode_tree_height_cb, mode_tree_key_cb, void *,
- const struct menu_item *, const char **, u_int, struct screen **);
+ mode_tree_menu_cb, mode_tree_height_cb, mode_tree_key_cb,
+ mode_tree_swap_cb, void *, const struct menu_item *, const char **,
+ u_int, struct screen **);
void mode_tree_zoom(struct mode_tree_data *, struct args *);
void mode_tree_build(struct mode_tree_data *);
void mode_tree_free(struct mode_tree_data *);
diff --git a/window-buffer.c b/window-buffer.c
index abdfa125..16cab7eb 100644
--- a/window-buffer.c
+++ b/window-buffer.c
@@ -350,7 +350,7 @@ window_buffer_init(struct window_mode_entry *wme, struct cmd_find_state *fs,
data->data = mode_tree_start(wp, args, window_buffer_build,
window_buffer_draw, window_buffer_search, window_buffer_menu, NULL,
- window_buffer_get_key, data, window_buffer_menu_items,
+ window_buffer_get_key, NULL, data, window_buffer_menu_items,
window_buffer_sort_list, nitems(window_buffer_sort_list), &s);
mode_tree_zoom(data->data, args);
diff --git a/window-client.c b/window-client.c
index b704b530..c1b962f1 100644
--- a/window-client.c
+++ b/window-client.c
@@ -310,7 +310,7 @@ window_client_init(struct window_mode_entry *wme,
data->data = mode_tree_start(wp, args, window_client_build,
window_client_draw, NULL, window_client_menu, NULL,
- window_client_get_key, data, window_client_menu_items,
+ window_client_get_key, NULL, data, window_client_menu_items,
window_client_sort_list, nitems(window_client_sort_list), &s);
mode_tree_zoom(data->data, args);
diff --git a/window-customize.c b/window-customize.c
index c49e57af..f30becfe 100644
--- a/window-customize.c
+++ b/window-customize.c
@@ -891,8 +891,8 @@ window_customize_init(struct window_mode_entry *wme, struct cmd_find_state *fs,
data->data = mode_tree_start(wp, args, window_customize_build,
window_customize_draw, NULL, window_customize_menu,
- window_customize_height, NULL, data, window_customize_menu_items,
- NULL, 0, &s);
+ window_customize_height, NULL, NULL, data,
+ window_customize_menu_items, NULL, 0, &s);
mode_tree_zoom(data->data, args);
mode_tree_build(data->data);
diff --git a/window-tree.c b/window-tree.c
index 07d2bc2e..6b14bb63 100644
--- a/window-tree.c
+++ b/window-tree.c
@@ -902,6 +902,58 @@ window_tree_get_key(void *modedata, void *itemdata, u_int line)
return (key);
}
+static int
+window_tree_swap(void *cur_itemdata, void *other_itemdata)
+{
+ struct window_tree_itemdata *cur = cur_itemdata;
+ struct window_tree_itemdata *other = other_itemdata;
+ struct session *cur_session, *other_session;
+ struct winlink *cur_winlink, *other_winlink;
+ struct window *cur_window, *other_window;
+ struct window_pane *cur_pane, *other_pane;
+
+ if (cur->type != other->type)
+ return (0);
+ if (cur->type != WINDOW_TREE_WINDOW)
+ return (0);
+
+ window_tree_pull_item(cur, &cur_session, &cur_winlink, &cur_pane);
+ window_tree_pull_item(other, &other_session, &other_winlink,
+ &other_pane);
+
+ if (cur_session != other_session)
+ return (0);
+
+ if (window_tree_sort->field != WINDOW_TREE_BY_INDEX &&
+ window_tree_cmp_window(&cur_winlink, &other_winlink) != 0) {
+ /*
+ * Swapping indexes would not swap positions in the tree, so
+ * prevent swapping to avoid confusing the user.
+ */
+ return (0);
+ }
+
+ other_window = other_winlink->window;
+ TAILQ_REMOVE(&other_window->winlinks, other_winlink, wentry);
+ cur_window = cur_winlink->window;
+ TAILQ_REMOVE(&cur_window->winlinks, cur_winlink, wentry);
+
+ other_winlink->window = cur_window;
+ TAILQ_INSERT_TAIL(&cur_window->winlinks, other_winlink, wentry);
+ cur_winlink->window = other_window;
+ TAILQ_INSERT_TAIL(&other_window->winlinks, cur_winlink, wentry);
+
+ if (cur_session->curw == cur_winlink)
+ session_set_current(cur_session, other_winlink);
+ else if (cur_session->curw == other_winlink)
+ session_set_current(cur_session, cur_winlink);
+ session_group_synchronize_from(cur_session);
+ server_redraw_session_group(cur_session);
+ recalculate_sizes();
+
+ return (1);
+}
+
static struct screen *
window_tree_init(struct window_mode_entry *wme, struct cmd_find_state *fs,
struct args *args)
@@ -940,7 +992,7 @@ window_tree_init(struct window_mode_entry *wme, struct cmd_find_state *fs,
data->data = mode_tree_start(wp, args, window_tree_build,
window_tree_draw, window_tree_search, window_tree_menu, NULL,
- window_tree_get_key, data, window_tree_menu_items,
+ window_tree_get_key, window_tree_swap, data, window_tree_menu_items,
window_tree_sort_list, nitems(window_tree_sort_list), &s);
mode_tree_zoom(data->data, args);