Add a nicer default second and third status line, from Michael Grant in

GitHub 4490.

format.c

@@ -4417,14 +4417,14 @@ format_loop_sessions(struct format_expand_state *es, const char *fmt)
 			l = xreallocarray(l, lsz, sizeof *l);
 		}
 		l[n++] = s;
-        }
+	}
 
-        qsort(l, n, sizeof *l, format_cmp_session);
+	qsort(l, n, sizeof *l, format_cmp_session);
 
 	value = xcalloc(1, 1);
 	valuelen = 1;
 
-        for (i = 0; i < n; i++) {
+	for (i = 0; i < n; i++) {
 		s = l[i];
 		format_log(es, "session loop: $%u", s->id);
 		if (active != NULL && s->id == ft->c->session->id)
@@ -4542,7 +4542,7 @@ format_loop_windows(struct format_expand_state *es, const char *fmt)
 			l = xreallocarray(l, lsz, sizeof *l);
 		}
 		l[n++] = wl;
-        }
+	}
 
 	if (sc->field != FORMAT_LOOP_BY_INDEX)
 		qsort(l, n, sizeof *l, format_cmp_window);
@@ -4641,9 +4641,9 @@ format_loop_panes(struct format_expand_state *es, const char *fmt)
 			l = xreallocarray(l, lsz, sizeof *l);
 		}
 		l[n++] = wp;
-        }
+	}
 
-        qsort(l, n, sizeof *l, format_cmp_pane);
+	qsort(l, n, sizeof *l, format_cmp_pane);
 
 	value = xcalloc(1, 1);
 	valuelen = 1;
@@ -4737,7 +4737,7 @@ format_loop_clients(struct format_expand_state *es, const char *fmt)
 			l = xreallocarray(l, lsz, sizeof *l);
 		}
 		l[n++] = c;
-        }
+	}
 
 	if (sc->field != FORMAT_LOOP_BY_INDEX)
 		qsort(l, n, sizeof *l, format_cmp_client);
@@ -4752,7 +4752,7 @@ format_loop_clients(struct format_expand_state *es, const char *fmt)
 		}
 	}
 
-        for (i = 0; i < n; i++) {
+	for (i = 0; i < n; i++) {
 		c = l[i];
 		format_log(es, "client loop: %s", c->name);
 		if (i == n - 1)

key-bindings.c

@@ -437,7 +437,6 @@ key_bindings_init(void)
 		"bind -N 'Display window menu' < { display-menu -xW -yW -T '#[align=centre]#{window_index}:#{window_name}' " DEFAULT_WINDOW_MENU " }",
 		"bind -N 'Display pane menu' > { display-menu -xP -yP -T '#[align=centre]#{pane_index} (#{pane_id})' " DEFAULT_PANE_MENU " }",
 
-
 		/* Mouse button 1 down on pane. */
 		"bind -n MouseDown1Pane { select-pane -t=; send -M }",
 
@@ -460,7 +459,7 @@ key_bindings_init(void)
 		"bind -n MouseDrag1Border { resize-pane -M }",
 
 		/* Mouse button 1 down on status line. */
-		"bind -n MouseDown1Status { select-window -t= }",
+		"bind -n MouseDown1Status { switch-client -t= }",
 
 		/* Mouse wheel down on status line. */
 		"bind -n WheelDownStatus { next-window }",

options-table.c

@@ -174,10 +174,60 @@ static const char *options_table_allow_passthrough_list[] = {
 	"#[pop-default]" \
 	"#[norange default]"
 #define OPTIONS_TABLE_STATUS_FORMAT2 \
-	"#[align=centre]#{P:#{?pane_active,#[reverse],}" \
+	"#[align=left]#{R: ,#{n:#{session_name}}}P: " \
-	"#{pane_index}[#{pane_width}x#{pane_height}]#[default] }"
+	"#[norange default]" \
+	"#[list=on align=#{status-justify}]" \
+	"#[list=left-marker]<#[list=right-marker]>#[list=on]" \
+	"#{P:" \
+		"#[range=pane|#{pane_id} " \
+			"#{E:pane-status-style}" \
+		"]" \
+		"#[push-default]" \
+		"#P[#{pane_width}x#{pane_height}]" \
+		"#[pop-default]" \
+		"#[norange list=on default]  " \
+	"," \
+		"#[range=pane|#{pane_id} list=focus " \
+			"#{?#{!=:#{E:pane-status-current-style},default}," \
+				"#{E:pane-status-current-style}," \
+				"#{E:pane-status-style}" \
+			"}" \
+		"]" \
+		"#[push-default]" \
+		"#P[#{pane_width}x#{pane_height}]*" \
+		"#[pop-default]" \
+		"#[norange list=on default] " \
+	"}"
+#define OPTIONS_TABLE_STATUS_FORMAT3 \
+	"#[align=left]#{R: ,#{n:#{session_name}}}S: " \
+	"#[norange default]" \
+	"#[list=on align=#{status-justify}]" \
+	"#[list=left-marker]<#[list=right-marker]>#[list=on]" \
+	"#{S:" \
+		"#[range=session|#{session_id} " \
+			"#{E:session-status-style}" \
+		"]" \
+		"#[push-default]" \
+		"#S#{session_alert}" \
+		"#[pop-default]" \
+		"#[norange list=on default]  " \
+	"," \
+		"#[range=session|#{session_id} list=focus " \
+			"#{?#{!=:#{E:session-status-current-style},default}," \
+					"#{E:session-status-current-style}," \
+					"#{E:session-status-style}" \
+			"}" \
+		"]" \
+		"#[push-default]" \
+		"#S*#{session_alert}" \
+		"#[pop-default]" \
+		"#[norange list=on default] " \
+	"}"
 static const char *options_table_status_format_default[] = {
-	OPTIONS_TABLE_STATUS_FORMAT1, OPTIONS_TABLE_STATUS_FORMAT2, NULL
+	OPTIONS_TABLE_STATUS_FORMAT1,
+	OPTIONS_TABLE_STATUS_FORMAT2,
+	OPTIONS_TABLE_STATUS_FORMAT3,
+	NULL
 };
 
 /* Helpers for hook options. */
@@ -872,6 +922,25 @@ const struct options_table_entry options_table[] = {
 	  .text = "Style of the status line."
 	},
 
+	{ .name = "pane-status-current-style",
+	  .type = OPTIONS_TABLE_STRING,
+	  .scope = OPTIONS_TABLE_WINDOW,
+	  .default_str = "default",
+	  .flags = OPTIONS_TABLE_IS_STYLE,
+	  .separator = ",",
+	  .text = "Style of the current pane in the status line."
+	},
+
+	{ .name = "pane-status-style",
+	  .type = OPTIONS_TABLE_STRING,
+	  .scope = OPTIONS_TABLE_WINDOW,
+	  .default_str = "default",
+	  .flags = OPTIONS_TABLE_IS_STYLE,
+	  .separator = ",",
+	  .text = "Style of panes in the status line, except the current "
+		  "pane."
+	},
+
 	{ .name = "prompt-cursor-colour",
 	  .type = OPTIONS_TABLE_COLOUR,
 	  .scope = OPTIONS_TABLE_SESSION,
@@ -887,6 +956,25 @@ const struct options_table_entry options_table[] = {
 	  .text = "Style of the cursor when in the command prompt."
 	},
 
+	{ .name = "session-status-current-style",
+	  .type = OPTIONS_TABLE_STRING,
+	  .scope = OPTIONS_TABLE_WINDOW,
+	  .default_str = "default",
+	  .flags = OPTIONS_TABLE_IS_STYLE,
+	  .separator = ",",
+	  .text = "Style of the current session in the status line."
+	},
+
+	{ .name = "session-status-style",
+	  .type = OPTIONS_TABLE_STRING,
+	  .scope = OPTIONS_TABLE_WINDOW,
+	  .default_str = "default",
+	  .flags = OPTIONS_TABLE_IS_STYLE,
+	  .separator = ",",
+	  .text = "Style of sessions in the status line, except the current "
+		  "session."
+	},
+
 	{ .name = "update-environment",
 	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_SESSION,

server-client.c

@@ -884,8 +884,7 @@ have_event:
 			m->wp = wp->id;
 			m->w = wp->window->id;
 		}
-	} else
+	}
-		m->wp = -1;
 
 	/* Stop dragging if needed. */
 	if (type != DRAG &&

tmux.1

@@ -5188,6 +5188,38 @@ Other attributes are ignored.
 .Xc
 Sets which side of the pane to display pane scrollbars on.
 .Pp
+.It Ic pane-status-current-style Ar style
+Set status line style for the currently active pane.
+For how to specify
+.Ar style ,
+see the
+.Sx STYLES
+section.
+.Pp
+.It Ic pane-status-style Ar style
+Set status line style for a single pane.
+For how to specify
+.Ar style ,
+see the
+.Sx STYLES
+section.
+.Pp
+.It Ic session-status-current-style Ar style
+Set status line style for the currently active session.
+For how to specify
+.Ar style ,
+see the
+.Sx STYLES
+section.
+.Pp
+.It Ic session-status-style Ar style
+Set status line style for a single session.
+For how to specify
+.Ar style ,
+see the
+.Sx STYLES
+section.
+.Pp
 .It Ic window-status-activity-style Ar style
 Set status line style for windows with an activity alert.
 For how to specify