1 files changed, 36 insertions, 0 deletions
diff --git a/source/features/warning-for-disallow-edits.tsx b/source/features/warning-for-disallow-edits.tsx
new file mode 100644
index 00000000..b896caca
--- /dev/null
+++ b/source/features/warning-for-disallow-edits.tsx
@@ -0,0 +1,36 @@
+import React from 'dom-chef';
+import select from 'select-dom';
+import features from '../libs/features';
+
+function init() {
+	const checkbox = select<HTMLInputElement>('[name="collab_privs"]');
+	const warning = (
+		<div class="flash flash-error mt-3">
+			<strong>Note:</strong> Maintainers may require changes. It’s easier and faster to allow them to make direct changes before merging.
+		</div>
+	);
+	const update = () => {
+		if (checkbox.checked) {
+			warning.remove();
+		} else {
+			// Select every time because the sidebar content may be replaced
+			select(`
+				.new-pr-form .timeline-comment,
+				.discussion-sidebar .js-collab-form + .dropdown
+			`).after(warning);
+		}
+	};
+
+	update(); // The sidebar checkbox may already be un-checked
+	checkbox.addEventListener('change', update);
+}
+
+features.add({
+	id: 'warning-for-disallow-edits',
+	include: [
+		features.isCompare,
+		features.isPRConversation
+	],
+	load: features.onAjaxedPages,
+	init
+});