Add an option (mouse-select-window) which allows the mouse to be used by

clicking on the status line, written by hsim at gmx dot li.

options-table.c

@@ -198,6 +198,11 @@ const struct options_table_entry session_options_table[] = {
 	  .default_num = 0
 	},
 
+	{ .name = "mouse-select-window",
+	  .type = OPTIONS_TABLE_FLAG,
+	  .default_num = 0
+	},
+
 	{ .name = "mouse-utf8",
 	  .type = OPTIONS_TABLE_FLAG,
 	  .default_num = 0

server-client.c

@@ -319,6 +319,12 @@ server_client_handle_key(int key, struct mouse_event *mouse, void *data)
 			server_redraw_window_borders(w);
 			wp = w->active;
 		}
+		if (mouse->y + 1 == c->tty.sy && mouse->b == MOUSE_UP &&
+		    options_get_number(oo, "mouse-select-window") &&
+		    options_get_number(oo, "status")) {
+			status_set_window_at(c, mouse->x);
+			return;
+		}
 		window_pane_mouse(wp, c->session, mouse);
 		return;
 	}
@@ -459,6 +465,10 @@ server_client_reset_state(struct client *c)
 	    (mode & ALL_MOUSE_MODES) == 0)
 		mode |= MODE_MOUSE_STANDARD;
 
+	if (options_get_number(oo, "mouse-select-window") &&
+	    (mode & ALL_MOUSE_MODES) == 0)
+		mode |= MODE_MOUSE_STANDARD;
+
 	/*
 	 * Set UTF-8 mouse input if required. If the terminal is UTF-8, the
 	 * user has set mouse-utf8 and any mouse mode is in effect, turn on

status.c

@@ -120,6 +120,23 @@ status_redraw_get_right(struct client *c,
 	return (right);
 }
 
+/* Set window at window list position. */
+void
+status_set_window_at(struct client *c, u_int x)
+{
+	struct session	*s = c->session;
+	struct winlink	*wl;
+
+	x += s->wlmouse;
+	RB_FOREACH(wl, winlinks, &s->windows) {
+		if (x < wl->status_width &&
+			session_select(s, wl->idx) == 0) {
+			server_redraw_session(s);
+		}
+		x -= wl->status_width + 1;
+	}
+}
+
 /* Draw status for client on the last lines of given context. */
 int
 status_redraw(struct client *c)
@@ -325,6 +342,7 @@ draw:
 		wloffset++;
 
 	/* Copy the window list. */
+	s->wlmouse = -wloffset + wlstart;
 	screen_write_cursormove(&ctx, wloffset, 0);
 	screen_write_copy(&ctx, &window_list, wlstart, 0, wlwidth, 1);
 	screen_free(&window_list);

tmux.1

@@ -1896,6 +1896,11 @@ If on,
 captures the mouse and when a window is split into multiple panes the mouse may
 be used to select the current pane.
 The mouse click is also passed through to the application as normal.
+.It Xo Ic mouse-select-window
+.Op Ic on | off
+.Xc
+If on, clicking the mouse on a window name in the status line will select that
+window.
 .It Ic pane-active-border-bg Ar colour
 .It Ic pane-active-border-fg Ar colour
 Set the pane border colour for the currently active pane.

tmux.h

@@ -957,6 +957,8 @@ struct session {
 
 	struct environ	 environ;
 
+	int		 wlmouse;
+
 	int		 references;
 
 	TAILQ_ENTRY(session) gentry;
@@ -1666,6 +1668,7 @@ int	 status_out_cmp(struct status_out *, struct status_out *);
 RB_PROTOTYPE(status_out_tree, status_out, entry, status_out_cmp);
 void	 status_free_jobs(struct status_out_tree *);
 void	 status_update_jobs(struct client *);
+void	 status_set_window_at(struct client *, u_int);
 int	 status_redraw(struct client *);
 char	*status_replace(struct client *, struct session *,
 	     struct winlink *, struct window_pane *, const char *, time_t, int);