Add -Z flag to choose-tree, choose-client, choose-buffer to

automatically zoom the pane when the mode is entered and unzoom when it
exits, assuming the pane is not already zoomed. Add -Z to the default
key bindings.

cmd-choose-tree.c

@@ -30,7 +30,7 @@ const struct cmd_entry cmd_choose_tree_entry = {
 	.name = "choose-tree",
 	.alias = NULL,
 
-	.args = { "F:Gf:NO:st:w", 0, 1 },
+	.args = { "F:Gf:NO:st:wZ", 0, 1 },
 	.usage = "[-GNsw] [-F format] [-f filter] [-O sort-order] "
 	         CMD_TARGET_PANE_USAGE,
 
@@ -44,7 +44,7 @@ const struct cmd_entry cmd_choose_client_entry = {
 	.name = "choose-client",
 	.alias = NULL,
 
-	.args = { "F:f:NO:t:", 0, 1 },
+	.args = { "F:f:NO:t:Z", 0, 1 },
 	.usage = "[-N] [-F format] [-f filter] [-O sort-order] "
 	         CMD_TARGET_PANE_USAGE,
 
@@ -58,7 +58,7 @@ const struct cmd_entry cmd_choose_buffer_entry = {
 	.name = "choose-buffer",
 	.alias = NULL,
 
-	.args = { "F:f:NO:t:", 0, 1 },
+	.args = { "F:f:NO:t:Z", 0, 1 },
 	.usage = "[-N] [-F format] [-f filter] [-O sort-order] "
 	         CMD_TARGET_PANE_USAGE,
 

key-bindings.c

@@ -183,9 +183,9 @@ key_bindings_init(void)
 		"bind 9 select-window -t:=9",
 		"bind : command-prompt",
 		"bind \\; last-pane",
-		"bind = choose-buffer",
+		"bind = choose-buffer -Z",
 		"bind ? list-keys",
-		"bind D choose-client",
+		"bind D choose-client -Z",
 		"bind E select-layout -E",
 		"bind L switch-client -l",
 		"bind M select-pane -M",
@@ -202,9 +202,9 @@ key_bindings_init(void)
 		"bind p previous-window",
 		"bind q display-panes",
 		"bind r refresh-client",
-		"bind s choose-tree -s",
+		"bind s choose-tree -Zs",
 		"bind t clock-mode",
-		"bind w choose-tree -w",
+		"bind w choose-tree -Zw",
 		"bind x confirm-before -p\"kill-pane #P? (y/n)\" kill-pane",
 		"bind z resize-pane -Z",
 		"bind { swap-pane -U",

mode-tree.c

@@ -31,6 +31,7 @@ TAILQ_HEAD(mode_tree_list, mode_tree_item);
 struct mode_tree_data {
 	int			  dead;
 	u_int			  references;
+	int			  zoomed;
 
 	struct window_pane	 *wp;
 	void			 *modedata;
@@ -343,6 +344,19 @@ mode_tree_start(struct window_pane *wp, struct args *args,
 	return (mtd);
 }
 
+void
+mode_tree_zoom(struct mode_tree_data *mtd, struct args *args)
+{
+	struct window_pane	*wp = mtd->wp;
+
+	if (args_has(args, 'Z')) {
+		mtd->zoomed = (wp->window->flags & WINDOW_ZOOMED);
+		if (!mtd->zoomed && window_zoom(wp) == 0)
+			server_redraw_window(wp->window);
+	} else
+		mtd->zoomed = -1;
+}
+
 void
 mode_tree_build(struct mode_tree_data *mtd)
 {
@@ -394,6 +408,11 @@ mode_tree_remove_ref(struct mode_tree_data *mtd)
 void
 mode_tree_free(struct mode_tree_data *mtd)
 {
+	struct window_pane	*wp = mtd->wp;
+
+	if (mtd->zoomed == 0)
+		server_unzoom_window(wp->window);
+
 	mode_tree_free_items(&mtd->children);
 	mode_tree_clear_lines(mtd);
 	screen_free(&mtd->screen);

server-fn.c

@@ -455,8 +455,6 @@ server_set_stdin_callback(struct client *c, void (*cb)(struct client *, int,
 void
 server_unzoom_window(struct window *w)
 {
-	if (window_unzoom(w) == 0) {
+	if (window_unzoom(w) == 0)
 		server_redraw_window(w);
-		server_status_window(w);
-	}
 }

tmux.1

@@ -1377,7 +1377,7 @@ the end of the visible pane.
 The default is to capture only the visible contents of the pane.
 .It Xo
 .Ic choose-client
-.Op Fl N
+.Op Fl NZ
 .Op Fl F Ar format
 .Op Fl f Ar filter
 .Op Fl O Ar sort-order
@@ -1386,6 +1386,8 @@ The default is to capture only the visible contents of the pane.
 .Xc
 Put a pane into client mode, allowing a client to be selected interactively from
 a list.
+.Fl Z
+zooms the pane.
 The following keys may be used in client mode:
 .Bl -column "Key" "Function" -offset indent
 .It Sy "Key" Ta Sy "Function"
@@ -1436,7 +1438,7 @@ starts without the preview.
 This command works only if at least one client is attached.
 .It Xo
 .Ic choose-tree
-.Op Fl GNsw
+.Op Fl GNswZ
 .Op Fl F Ar format
 .Op Fl f Ar filter
 .Op Fl O Ar sort-order
@@ -1449,6 +1451,8 @@ interactively from a list.
 starts with sessions collapsed and
 .Fl w
 with windows collapsed.
+.Fl Z
+zooms the pane.
 The following keys may be used in tree mode:
 .Bl -column "Key" "Function" -offset indent
 .It Sy "Key" Ta Sy "Function"
@@ -4129,7 +4133,7 @@ The buffer commands are as follows:
 .Bl -tag -width Ds
 .It Xo
 .Ic choose-buffer
-.Op Fl N
+.Op Fl NZ
 .Op Fl F Ar format
 .Op Fl f Ar filter
 .Op Fl O Ar sort-order
@@ -4138,6 +4142,8 @@ The buffer commands are as follows:
 .Xc
 Put a pane into buffer mode, where a buffer may be chosen interactively from
 a list.
+.Fl Z
+zooms the pane.
 The following keys may be used in buffer mode:
 .Bl -column "Key" "Function" -offset indent
 .It Sy "Key" Ta Sy "Function"

tmux.h

@@ -2247,6 +2247,7 @@ void	 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,
 	     void *, 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 *);
 void	 mode_tree_resize(struct mode_tree_data *, u_int, u_int);

window-buffer.c

@@ -273,6 +273,7 @@ window_buffer_init(struct window_pane *wp, __unused struct cmd_find_state *fs,
 	data->data = mode_tree_start(wp, args, window_buffer_build,
 	    window_buffer_draw, window_buffer_search, data,
 	    window_buffer_sort_list, nitems(window_buffer_sort_list), &s);
+	mode_tree_zoom(data->data, args);
 
 	mode_tree_build(data->data);
 	mode_tree_draw(data->data);

window-client.c

@@ -256,6 +256,7 @@ window_client_init(struct window_pane *wp, __unused struct cmd_find_state *fs,
 	data->data = mode_tree_start(wp, args, window_client_build,
 	    window_client_draw, NULL, data, window_client_sort_list,
 	    nitems(window_client_sort_list), &s);
+	mode_tree_zoom(data->data, args);
 
 	mode_tree_build(data->data);
 	mode_tree_draw(data->data);

window-tree.c

@@ -841,6 +841,7 @@ window_tree_init(struct window_pane *wp, struct cmd_find_state *fs,
 	data->data = mode_tree_start(wp, args, window_tree_build,
 	    window_tree_draw, window_tree_search, data, window_tree_sort_list,
 	    nitems(window_tree_sort_list), &s);
+	mode_tree_zoom(data->data, args);
 
 	mode_tree_build(data->data);
 	mode_tree_draw(data->data);