From a915a0f136cffdfb0c2cebb165ec16e95a113e84 Mon Sep 17 00:00:00 2001
From: Hsieh Chin Fan <pham@topo.tw>
Date: Mon, 7 Oct 2024 19:44:46 +0800
Subject: fix: do not add anchor when user input is null

---
 src/editor.mjs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'src')

diff --git a/src/editor.mjs b/src/editor.mjs
index 8e3e62b..4a58f12 100644
--- a/src/editor.mjs
+++ b/src/editor.mjs
@@ -424,14 +424,15 @@ const menuForEditor = (event, menu) => {
 
         let prompt
         let anchorName
-        let link
+
         do {
           prompt = prompt ? 'Anchor name exists' : 'Name this anchor'
           anchorName = window.prompt(prompt, `${x}, ${y}`)
-          link = `geo:${y},${x}?xy=${x},${y}&id=${map.id} "${anchorName}"`
         }
-        while (refLinks.find(({ ref }) => ref === anchorName))
+        while (anchorName !== null && refLinks.find(({ ref }) => ref === anchorName))
+        if (anchorName === null) return
 
+        const link = `geo:${y},${x}?xy=${x},${y}&id=${map.id} "${anchorName}"`
         const lastLineIsRefLink = cm.getLine(cm.lastLine()).match(refLinkPattern)
         cm.replaceRange(
           `${lastLineIsRefLink ? '' : '\n'}\n[${anchorName}]: ${link}`,
-- 
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