feat: add canvas lock button

Memola/Canvas/Core/Canvas.swift

@@ -29,6 +29,7 @@ final class Canvas: ObservableObject, Identifiable, @unchecked Sendable {
 
     @Published var state: State = .initial
     @Published var zoomScale: CGFloat = .zero
+    @Published var locksCanvas: Bool = false
 
     let zoomPublisher = PassthroughSubject<CGFloat, Never>()
 

Memola/Canvas/View/Bridge/ViewController/CanvasViewController.swift

@@ -168,6 +168,12 @@ extension CanvasViewController {
             }
             .store(in: &cancellables)
 
+        canvas.$locksCanvas
+            .sink { [weak self] state in
+                self?.lockModeChanged(state)
+            }
+            .store(in: &cancellables)
+
         tool.$selectedPen
             .sink { [weak self] pen in
                 self?.penChanged(to: pen)
@@ -308,6 +314,11 @@ extension CanvasViewController {
     func zoomChanged(_ zoomScale: CGFloat) {
         scrollView.setZoomScale(zoomScale, animated: true)
     }
+
+    func lockModeChanged(_ state: Bool) {
+        scrollView.isScrollEnabled = !state
+        scrollView.pinchGestureRecognizer?.isEnabled = !state
+    }
 }
 
 extension CanvasViewController {

Memola/Features/Memo/Memo/MemoView.swift

@@ -61,31 +61,34 @@ struct MemoView: View {
         let lowerBound: CGFloat = 10
         let zoomScale: CGFloat = (((canvas.zoomScale - canvas.minimumZoomScale) * (upperBound - lowerBound) / (canvas.maximumZoomScale - canvas.minimumZoomScale)) + lowerBound).rounded()
         let zoomScales: [Int] = [400, 200, 100, 75, 50, 25, 10]
-        Menu {
-            ForEach(zoomScales, id: \.self) { scale in
-                Button {
-                    let zoomScale = ((CGFloat(scale) - lowerBound) * (canvas.maximumZoomScale - canvas.minimumZoomScale) / (upperBound - lowerBound)) + canvas.minimumZoomScale
-                    canvas.zoomPublisher.send(zoomScale)
-                } label: {
-                    Label {
-                        Text(scale, format: .percent)
-                    } icon: {
-                        if CGFloat(scale) == zoomScale {
-                            Image(systemName: "checkmark")
+        if !canvas.locksCanvas {
+            Menu {
+                ForEach(zoomScales, id: \.self) { scale in
+                    Button {
+                        let zoomScale = ((CGFloat(scale) - lowerBound) * (canvas.maximumZoomScale - canvas.minimumZoomScale) / (upperBound - lowerBound)) + canvas.minimumZoomScale
+                        canvas.zoomPublisher.send(zoomScale)
+                    } label: {
+                        Label {
+                            Text(scale, format: .percent)
+                        } icon: {
+                            if CGFloat(scale) == zoomScale {
+                                Image(systemName: "checkmark")
+                            }
                         }
+                        .font(.headline)
                     }
-                    .font(.headline)
                 }
+            } label: {
+                Text(zoomScale / 100, format: .percent)
+                    .frame(width: 45)
+                    .font(.subheadline)
+                    .padding(.horizontal, size / 2.5)
+                    .frame(height: size)
+                    .background(.regularMaterial)
+                    .clipShape(.rect(cornerRadius: 8))
+                    .padding(10)
             }
-        } label: {
-            Text(zoomScale / 100, format: .percent)
-                .frame(width: 45)
-                .font(.subheadline)
-                .padding(.horizontal, size / 2.5)
-                .frame(height: size)
-                .background(.regularMaterial)
-                .clipShape(.rect(cornerRadius: 8))
-                .padding(10)
+            .transition(.move(edge: .bottom).combined(with: .blurReplace))
         }
     }
 

Memola/Features/Memo/PenDock/PenDock.swift

@@ -9,6 +9,7 @@ import SwiftUI
 
 struct PenDock: View {
     @EnvironmentObject var tool: Tool
+    @EnvironmentObject var canvas: Canvas
 
     let width: CGFloat = 90
     let height: CGFloat = 30
@@ -18,13 +19,16 @@ struct PenDock: View {
     @State var opensColorPicker: Bool = false
 
     var body: some View {
-        VStack(alignment: .trailing) {
-            penPropertyTool
-            penItemList
+        if !canvas.locksCanvas {
+            VStack(alignment: .trailing) {
+                penPropertyTool
+                penItemList
+            }
+            .fixedSize()
+            .frame(maxHeight: .infinity)
+            .padding(10)
+            .transition(.move(edge: .trailing).combined(with: .blurReplace))
         }
-        .fixedSize()
-        .frame(maxHeight: .infinity)
-        .padding(10)
     }
 
     var penItemList: some View {
@@ -156,7 +160,7 @@ struct PenDock: View {
                 RoundedRectangle(cornerRadius: 8)
                     .fill(.regularMaterial)
             }
-            .transition(.move(edge: .trailing).combined(with: .opacity))
+            .transition(.move(edge: .trailing).combined(with: .blurReplace))
         } else {
             Color.clear
                 .frame(width: width * factor - 18, height: 50)

Memola/Features/Memo/Toolbar/Toolbar.swift

@@ -28,10 +28,15 @@ struct Toolbar: View {
     
     var body: some View {
         HStack(spacing: 5) {
-            closeButton
-            titleField
+            if !canvas.locksCanvas {
+                closeButton
+                titleField
+            }
             Spacer()
-            historyControl
+            if !canvas.locksCanvas {
+                historyControl
+            }
+            lockButton
         }
         .font(.subheadline)
         .padding(10)
@@ -49,6 +54,7 @@ struct Toolbar: View {
         }
         .hoverEffect(.lift)
         .disabled(textFieldState)
+        .transition(.move(edge: .top).combined(with: .blurReplace))
     }
 
     var titleField: some View {
@@ -68,6 +74,7 @@ struct Toolbar: View {
                     }
                 }
             }
+            .transition(.move(edge: .top).combined(with: .blurReplace))
     }
 
     var historyControl: some View {
@@ -94,6 +101,30 @@ struct Toolbar: View {
         .background(.regularMaterial)
         .clipShape(.rect(cornerRadius: 8))
         .disabled(textFieldState)
+        .transition(.move(edge: .top).combined(with: .blurReplace))
+    }
+
+    var lockButton: some View {
+        Button {
+            withAnimation {
+                canvas.locksCanvas.toggle()
+            }
+        } label: {
+            ZStack {
+                if canvas.locksCanvas {
+                    Image(systemName: "lock.open")
+                        .transition(.move(edge: .trailing).combined(with: .blurReplace))
+                } else {
+                    Image(systemName: "lock")
+                        .transition(.move(edge: .leading).combined(with: .blurReplace))
+                }
+            }
+            .contentShape(.circle)
+            .frame(width: size, height: size)
+            .background(.regularMaterial)
+            .clipShape(.rect(cornerRadius: 8))
+        }
+        .hoverEffect(.lift)
     }
 
     func closeMemo() {