From d329b035cee47d968a8c93b5cbd8fde879ce6f0d Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Fri, 24 Jul 2020 07:05:37 +0000
Subject: [PATCH] Add a hook when the pane title changed.

---
 cmd-select-pane.c | 1 +
 input.c           | 3 +++
 options-table.c   | 1 +
 3 files changed, 5 insertions(+)

diff --git a/cmd-select-pane.c b/cmd-select-pane.c
index b0c78d74..30529722 100644
--- a/cmd-select-pane.c
+++ b/cmd-select-pane.c
@@ -198,6 +198,7 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 	if (args_has(args, 'T')) {
 		title = format_single_from_target(item, args_get(args, 'T'));
 		if (screen_set_title(&wp->base, title)) {
+			notify_pane("pane-title-changed", wp);
 			server_redraw_window_borders(wp->window);
 			server_status_window(wp->window);
 		}
diff --git a/input.c b/input.c
index a3850371..b1b8bf94 100644
--- a/input.c
+++ b/input.c
@@ -1867,6 +1867,7 @@ input_csi_dispatch_winops(struct input_ctx *ictx)
 			case 2:
 				screen_pop_title(sctx->s);
 				if (wp != NULL) {
+					notify_pane("pane-title-changed", wp);
 					server_redraw_window_borders(wp->window);
 					server_status_window(wp->window);
 				}
@@ -2261,6 +2262,7 @@ input_exit_osc(struct input_ctx *ictx)
 	case 0:
 	case 2:
 		if (screen_set_title(sctx->s, p) && wp != NULL) {
+			notify_pane("pane-title-changed", wp);
 			server_redraw_window_borders(wp->window);
 			server_status_window(wp->window);
 		}
@@ -2326,6 +2328,7 @@ input_exit_apc(struct input_ctx *ictx)
 	log_debug("%s: \"%s\"", __func__, ictx->input_buf);
 
 	if (screen_set_title(sctx->s, ictx->input_buf) && wp != NULL) {
+		notify_pane("pane-title-changed", wp);
 		server_redraw_window_borders(wp->window);
 		server_status_window(wp->window);
 	}
diff --git a/options-table.c b/options-table.c
index 54bdadba..95d865ce 100644
--- a/options-table.c
+++ b/options-table.c
@@ -1121,6 +1121,7 @@ const struct options_table_entry options_table[] = {
 	OPTIONS_TABLE_PANE_HOOK("pane-focus-out", ""),
 	OPTIONS_TABLE_PANE_HOOK("pane-mode-changed", ""),
 	OPTIONS_TABLE_PANE_HOOK("pane-set-clipboard", ""),
+	OPTIONS_TABLE_PANE_HOOK("pane-title-changed", ""),
 	OPTIONS_TABLE_HOOK("session-closed", ""),
 	OPTIONS_TABLE_HOOK("session-created", ""),
 	OPTIONS_TABLE_HOOK("session-renamed", ""),