diff --git a/Memola/Canvas/View/Bridge/ViewController/CanvasViewController.swift b/Memola/Canvas/View/Bridge/ViewController/CanvasViewController.swift
index 5c045d5..4aa65eb 100644
--- a/Memola/Canvas/View/Bridge/ViewController/CanvasViewController.swift
+++ b/Memola/Canvas/View/Bridge/ViewController/CanvasViewController.swift
@@ -48,7 +48,6 @@ final class CanvasViewController: Platform.ViewController {
     }
 
     #if os(macOS)
-    
     override func viewWillAppear() {
         super.viewWillAppear()
         resizeDocumentView()
@@ -462,14 +461,12 @@ extension CanvasViewController {
             enablesDrawing = false
             enablesPhotoInsertion = true
         }
-        #if os(macOS)
-        #warning("TODO: implement for macos")
-        #else
-        scrollView.isScrollEnabled = enablesScrolling
         drawingView.isUserInteractionEnabled = enablesDrawing
         photoInsertGesture?.isEnabled = enablesPhotoInsertion
-        enablesDrawing ? drawingView.enableUserInteraction() : drawingView.disableUserInteraction()
+        #if os(iOS)
+        scrollView.isScrollEnabled = enablesScrolling
         #endif
+        enablesDrawing ? drawingView.enableUserInteraction() : drawingView.disableUserInteraction()
     }
 }
 
@@ -483,14 +480,6 @@ extension CanvasViewController {
         #endif
     }
 
-    private func lockModeChanged(_ state: Bool) {
-        #if os(macOS)
-        #warning("TODO: implement for macos")
-        #else
-        scrollView.pinchGestureRecognizer?.isEnabled = !state
-        #endif
-    }
-
     private func gridModeChanged(_ mode: GridMode) {
         drawingView.disableUserInteraction()
         renderer.setRedrawsGraphicRender()
diff --git a/Memola/Canvas/View/Bridge/Views/DrawingView.swift b/Memola/Canvas/View/Bridge/Views/DrawingView.swift
index 71833c2..135a598 100644
--- a/Memola/Canvas/View/Bridge/Views/DrawingView.swift
+++ b/Memola/Canvas/View/Bridge/Views/DrawingView.swift
@@ -21,6 +21,10 @@ final class DrawingView: Platform.View {
     private var lastDrawTime: CFTimeInterval = 0
     private let minDrawInterval: CFTimeInterval = 1.0 / 60.0
 
+    #if os(macOS)
+    var isUserInteractionEnabled: Bool = true
+    #endif
+
     required init(tool: Tool, canvas: Canvas, history: History) {
         self.tool = tool
         self.canvas = canvas
@@ -58,6 +62,10 @@ final class DrawingView: Platform.View {
         let point = CGPoint(x: pointInLeftBottomOrigin.x, y: bounds.height - pointInLeftBottomOrigin.y)
         touchEnded(at: point)
     }
+
+    override func hitTest(_ point: NSPoint) -> NSView? {
+        isUserInteractionEnabled ? super.hitTest(point) : nil
+    }
     #else
     override func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
         !canvas.hasValidStroke