feat: update updated date of memo when if there are changes

Memola/App/MemolaApp.swift

@@ -14,6 +14,9 @@ struct MemolaApp: App {
             MemosView()
                 .persistence(\.viewContext)
                 .onReceive(NotificationCenter.default.publisher(for: UIApplication.willTerminateNotification)) { _ in
+                    withPersistenceSync(\.viewContext) { context in
+                        try context.saveIfNeeded()
+                    }
                     withPersistenceSync(\.backgroundContext) { context in
                         try context.saveIfNeeded()
                     }

Memola/Canvas/History/History.swift

@@ -9,6 +9,12 @@ import Combine
 import Foundation
 
 class History: ObservableObject {
+    var memo: MemoObject?
+
+    init(memo: MemoObject?) {
+        self.memo = memo
+    }
+
     @Published var undoStack: [HistoryEvent] = []
     @Published var redoStack: [HistoryEvent] = []
 
@@ -41,10 +47,18 @@ class History: ObservableObject {
 
     func addUndo(_ event: HistoryEvent) {
         undoStack.append(event)
+        withPersistence(\.viewContext) { [weak memo] context in
+            memo?.updatedAt = .now
+            try context.saveIfNeeded()
+        }
     }
 
     func addRedo(_ event: HistoryEvent) {
         redoStack.append(event)
+        withPersistence(\.viewContext) { [weak memo] context in
+            memo?.updatedAt = .now
+            try context.saveIfNeeded()
+        }
     }
 
     func resetRedo() {
@@ -87,6 +101,10 @@ class History: ObservableObject {
             }
         }
         redoStack.removeAll()
+        withPersistence(\.viewContext) { [weak memo] context in
+            memo?.updatedAt = .now
+            try context.saveIfNeeded()
+        }
     }
 
     func restoreUndo() {

Memola/Canvas/Tool/Core/Tool.swift

@@ -38,6 +38,7 @@ public class Tool: NSObject, ObservableObject {
         self.selection = selection
         withPersistence(\.viewContext) { [weak object] context in
             object?.selection = selection.rawValue
+            object?.memo?.updatedAt = .now
             try context.saveIfNeeded()
         }
     }
@@ -85,10 +86,11 @@ public class Tool: NSObject, ObservableObject {
             pens.insert(pen, at: index + 1)
         }
         selectPen(pen)
-        withPersistence(\.viewContext) { [pens] context in
+        withPersistence(\.viewContext) { [pens, weak object] context in
             for (index, pen) in pens.enumerated() {
                 pen.object?.orderIndex = Int16(index)
             }
+            object?.memo?.updatedAt = .now
             try context.saveIfNeeded()
         }
     }
@@ -102,7 +104,8 @@ public class Tool: NSObject, ObservableObject {
             object.pens.add(_pen)
         }
         scrollPublisher.send(pen.id)
-        withPersistence(\.viewContext) { context in
+        withPersistence(\.viewContext) { [weak object] context in
+            object?.memo?.updatedAt = .now
             try context.saveIfNeeded()
         }
     }
@@ -116,8 +119,9 @@ public class Tool: NSObject, ObservableObject {
         if let _pen = deletedPen.object {
             _pen.tool = nil
             object.pens.remove(_pen)
-            withPersistence(\.viewContext) { context in
+            withPersistence(\.viewContext) { [weak object] context in
                 context.delete(_pen)
+                object?.memo?.updatedAt = .now
                 try context.saveIfNeeded()
             }
         }

Memola/Canvas/Tool/Pen/Core/Pen.swift

@@ -16,21 +16,25 @@ class Pen: NSObject, ObservableObject, Identifiable {
     @Published var style: any PenStyle {
         didSet {
             object?.style = strokeStyle.rawValue
+            object?.tool?.memo?.updatedAt = .now
         }
     }
     @Published var rgba: [CGFloat] {
         didSet {
             object?.color = rgba
+            object?.tool?.memo?.updatedAt = .now
         }
     }
     @Published var thickness: CGFloat {
         didSet {
             object?.thickness = thickness
+            object?.tool?.memo?.updatedAt = .now
         }
     }
     @Published var isSelected: Bool {
         didSet {
             object?.isSelected = isSelected
+            object?.tool?.memo?.updatedAt = .now
         }
     }
     var color: Color {

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

@@ -259,7 +259,6 @@ extension CanvasViewController: UIScrollViewDelegate {
 
     func scrollViewDidZoom(_ scrollView: UIScrollView) {
         canvas.setZoomScale(scrollView.zoomScale)
-//        renderer.resize(on: renderView, to: renderView.drawableSize)
         renderView.draw()
     }
 
@@ -274,7 +273,6 @@ extension CanvasViewController: UIScrollViewDelegate {
     }
 
     func scrollViewDidScroll(_ scrollView: UIScrollView) {
-//        renderer.resize(on: renderView, to: renderView.drawableSize)
         renderView.draw()
     }
 

Memola/Features/Memo/Memo/MemoView.swift

@@ -11,7 +11,7 @@ import CoreData
 struct MemoView: View {
     @StateObject var tool: Tool
     @StateObject var canvas: Canvas
-    @StateObject var history = History()
+    @StateObject var history: History
 
     @State var memo: MemoObject
     @State var title: String
@@ -24,6 +24,7 @@ struct MemoView: View {
         self.title = memo.title
         self._tool = StateObject(wrappedValue: Tool(object: memo.tool))
         self._canvas = StateObject(wrappedValue: Canvas(size: memo.canvas.size, canvasID: memo.canvas.objectID, gridMode: memo.canvas.gridMode))
+        self._history = StateObject(wrappedValue: History(memo: memo))
     }
 
     var body: some View {

Memola/Features/Memo/PenDock/PenDropDelegate.swift

@@ -29,10 +29,11 @@ struct PenDropDelegate: DropDelegate {
                 tool.pens.move(fromOffsets: IndexSet(integer: fromIndex), toOffset: toIndex > fromIndex ? toIndex + 1 : toIndex)
                 tool.objectWillChange.send()
             }
-            withPersistence(\.viewContext) { context in
+            withPersistence(\.viewContext) { [weak object = tool.object] context in
                 for (index, pen) in tool.pens.enumerated() {
                     pen.object?.orderIndex = Int16(index)
                 }
+                object?.memo?.updatedAt = .now
                 try context.saveIfNeeded()
             }
         }

Memola/Features/Memo/Toolbar/Toolbar.swift

@@ -123,6 +123,7 @@ struct Toolbar: View {
                 if !newValue {
                     if !title.isEmpty {
                         memo.title = title
+                        memo.updatedAt = .now
                     } else {
                         title = memo.title
                     }
@@ -313,8 +314,11 @@ struct Toolbar: View {
         withAnimation {
             canvas.state = .closing
         }
+        withPersistenceSync(\.viewContext) { context in
+            try context.saveIfNeeded()
+        }
         withPersistence(\.backgroundContext) { context in
-            try? context.saveIfNeeded()
+            try context.saveIfNeeded()
             context.refreshAllObjects()
             DispatchQueue.main.async {
                 withAnimation {

Memola/Features/Memos/MemosView.swift

@@ -14,6 +14,9 @@ struct MemosView: View {
 
     @State var memo: MemoObject?
 
+    let cellWidth: CGFloat = 250
+    let cellHeight: CGFloat = 150
+
     var body: some View {
         NavigationStack {
             memoGrid
@@ -41,21 +44,28 @@ struct MemosView: View {
     }
 
     var memoGrid: some View {
-        ScrollView {
+        GeometryReader { proxy in
-            LazyVGrid(columns: .init(repeating: GridItem(.flexible()), count: 3)) {
+            let count = Int(proxy.size.width / cellWidth)
-                ForEach(memoObjects) { memo in
+            let columns: [GridItem] = .init(repeating: GridItem(.flexible(), spacing: 15), count: count)
-                    memoCard(memo)
+            ScrollView {
+                LazyVGrid(columns: columns, spacing: 15) {
+                    ForEach(memoObjects) { memo in
+                        memoCard(memo)
+                    }
                 }
+                .padding()
             }
-            .padding()
         }
     }
 
     func memoCard(_ memoObject: MemoObject) -> some View {
-        VStack(alignment: .leading) {
+        VStack(alignment: .leading, spacing: 5) {
             Rectangle()
-                .frame(height: 150)
+                .frame(height: cellHeight)
+                .clipShape(RoundedRectangle(cornerRadius: 10))
             Text(memoObject.title)
+                .font(.headline)
+                .fontWeight(.semibold)
         }
         .onTapGesture {
             openMemo(for: memoObject)