FIx failing showing scrollbar when unwrapped (fix #1037)

CHANGELOG.md

@@ -11,6 +11,11 @@ Change Log
 - Update “Kotlin” syntax style.
 
 
+### Fixes
+
+- Fix an issue where the horizontal scrollbar didn't appear by unwrapping lines if the document consists of a single very long line.
+
+
 
 3.8.11 (398)
 --------------------------

CotEditor/Sources/NSTextView+Layout.swift

@@ -199,6 +199,14 @@ extension NSTextView {
             let visibleRange = self.visibleRange
             let isVertical = (self.layoutOrientation == .vertical)
             
+            if isVertical {
+                self.enclosingScrollView?.hasVerticalScroller = !newValue
+                self.isVerticallyResizable = !newValue
+            } else {
+                self.enclosingScrollView?.hasHorizontalScroller = !newValue
+                self.isHorizontallyResizable = !newValue
+            }
+            
             if newValue {
                 let width = self.visibleRect.width
                 self.frame.size[keyPath: isVertical ? \NSSize.height : \NSSize.width] = width * self.scale
@@ -209,14 +217,6 @@ extension NSTextView {
                 textContainer.size = self.infiniteSize
             }
             
-            if isVertical {
-                self.isVerticallyResizable = !newValue
-                self.enclosingScrollView?.hasVerticalScroller = !newValue
-            } else {
-                self.isHorizontallyResizable = !newValue
-                self.enclosingScrollView?.hasHorizontalScroller = !newValue
-            }
-            
             if let visibleRange = visibleRange, var visibleRect = self.boundingRect(for: visibleRange) {
                 visibleRect.size.width = 0
                 visibleRect = visibleRect.inset(by: -self.textContainerOrigin)