fix(app): line selection ux fixes

packages/ui/src/components/code.tsx

@@ -66,28 +66,16 @@ export function Code<T>(props: CodeProps<T>) {
     "selectedLines",
     "commentedLines",
     "onRendered",
-    "onLineSelectionEnd",
   ])
 
   const [rendered, setRendered] = createSignal(0)
 
-  const handleLineClick: FileOptions<T>["onLineClick"] = (info) => {
-    props.onLineClick?.(info)
-
-    if (props.enableLineSelection !== true) return
-    if (info.numberColumn) return
-    if (!local.selectedLines) return
-
-    file().setSelectedLines(null)
-  }
-
   const file = createMemo(
     () =>
       new File<T>(
         {
           ...createDefaultOptions<T>("unified"),
           ...others,
-          onLineClick: props.enableLineSelection === true || props.onLineClick ? handleLineClick : undefined,
         },
         getWorkerPool("unified"),
       ),
@@ -332,12 +320,21 @@ export function Code<T>(props: CodeProps<T>) {
     if (props.enableLineSelection !== true) return
     if (dragStart === undefined) return
 
-    if (dragMoved) {
-      pendingSelectionEnd = true
-      scheduleDragUpdate()
-      scheduleSelectionUpdate()
+    if (!dragMoved) {
+      pendingSelectionEnd = false
+      const line = dragStart
+      setSelectedLines({ start: line, end: line })
+      props.onLineSelectionEnd?.(lastSelection)
+      dragStart = undefined
+      dragEnd = undefined
+      dragMoved = false
+      return
     }
 
+    pendingSelectionEnd = true
+    scheduleDragUpdate()
+    scheduleSelectionUpdate()
+
     dragStart = undefined
     dragEnd = undefined
     dragMoved = false