From 6d56ad0001fc902c5d8c83284d1fe4c7d93f23ca Mon Sep 17 00:00:00 2001
From: Magnus Hoff <maghoff@gmail.com>
Date: Sat, 28 Oct 2017 15:21:47 +0200
Subject: [PATCH] Ask user for confirmation when they abandon an edit in
 progress. This fixes #17

---
 assets/script.js | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/assets/script.js b/assets/script.js
index d6b2c6d..d4fc3cd 100644
--- a/assets/script.js
+++ b/assets/script.js
@@ -13,6 +13,13 @@ function queryArgsFromForm(form) {
     return items.join('&');
 }
 
+function isEdited(form) {
+    for (const {name, value, defaultValue} of form.elements) {
+        if (name && (value !== defaultValue)) return true;
+    }
+    return false;
+}
+
 let hasBeenOpen = false;
 function openEditor() {
     const container = document.querySelector(".container");
@@ -91,8 +98,10 @@ function openEditor() {
         ev.preventDefault();
         ev.stopPropagation();
 
-        container.classList.remove('edit');
-        form.reset();
+        if (!isEdited(form) || confirm("Discard changes?")) {
+            container.classList.remove('edit');
+            form.reset();
+        }
     });
 }