From 8235957eaae0aacb1ad0c9b145a1f9d3abc93dfd Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Fri, 22 Oct 2021 17:12:50 +0000
Subject: [PATCH] Remove key and trim text if menu cannot fit in available
 space, based on a change from Alexis Hildebrandt.

---
 menu.c | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/menu.c b/menu.c
index a1c81816..45645147 100644
--- a/menu.c
+++ b/menu.c
@@ -55,10 +55,11 @@ menu_add_item(struct menu *menu, const struct menu_item *item,
     struct cmdq_item *qitem, struct client *c, struct cmd_find_state *fs)
 {
 	struct menu_item	*new_item;
-	const char		*key, *cmd;
+	const char		*key = NULL, *cmd, *suffix = "";
 	char			*s, *name;
-	u_int			 width;
+	u_int			 width, max_width;
 	int			 line;
+	size_t			 keylen, slen;
 
 	line = (item == NULL || item->name == NULL || *item->name == '\0');
 	if (line && menu->count == 0)
@@ -80,11 +81,30 @@ menu_add_item(struct menu *menu, const struct menu_item *item,
 		menu->count--;
 		return;
 	}
+	max_width = c->tty.sx - 4;
+
+	slen = strlen(s);
 	if (*s != '-' && item->key != KEYC_UNKNOWN && item->key != KEYC_NONE) {
 		key = key_string_lookup_key(item->key, 0);
+		keylen = strlen(key) + 3; /* 3 = space and two brackets */
+
+		/*
+		 * Only add the key if there is space for the entire item text
+		 * and the key.
+		 */
+		if (keylen >= max_width || slen >= max_width - keylen)
+			key = NULL;
+	}
+
+	if (key != NULL)
 		xasprintf(&name, "%s#[default] #[align=right](%s)", s, key);
-	} else
-		xasprintf(&name, "%s", s);
+	else {
+		if (slen > max_width) {
+			max_width--;
+			suffix = ">";
+		}
+		xasprintf(&name, "%.*s%s", (int)max_width, s, suffix);
+	}
 	new_item->name = name;
 	free(s);