Take Notes into account in smart labels

1 files changed, 66 insertions, 1 deletions

diff --git a/Map/MapApp.swift b/Map/MapApp.swift
index 54eb9be..5061807 100644
--- a/Map/MapApp.swift
+++ b/Map/MapApp.swift
@@ -12,6 +12,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see https://map.tranquil.systems.
+import AppKit
 import Sparkle
 import SwiftUI
 
@@ -23,7 +24,7 @@ struct MapApp: App {
 
   var body: some Scene {
     DocumentGroup(newDocument: MapDocument(text: nil)) { file in
-      MapEditor(document: file.$document, url: file.fileURL)
+      LazyMapEditor(document: file.$document, url: file.fileURL)
         .focusedSceneValue(\.document, file.$document)
         .focusedSceneValue(\.fileURL, file.fileURL)
     }
@@ -38,3 +39,67 @@ struct MapApp: App {
     }
   }
 }
+
+struct LazyMapEditor: View {
+  @Binding var document: MapDocument
+  var url: URL?
+
+  @FocusedBinding(\.document) var focusedDocument: MapDocument?
+  @FocusedValue(\.fileURL) var focusedFileURL: URL?
+  @State private var shouldRender = false
+  @State private var renderTask: Task<Void, Never>?
+
+  var isActiveDocument: Bool {
+    guard let focusedDocument else { return false }
+    // Use URL for identification if available, otherwise fall back to text comparison
+    if let documentURL = url,
+      let focusedURL = focusedFileURL
+    {
+      return documentURL == focusedURL
+    }
+    // For new documents without URLs, use text comparison as fallback
+    return focusedDocument.text == document.text
+  }
+
+  var body: some View {
+    if isActiveDocument && shouldRender {
+      MapEditor(document: $document, url: url)
+    } else {
+      Rectangle()
+        .fill(Color(NSColor.windowBackgroundColor))
+        .overlay(
+          VStack(spacing: 16) {
+            Text("document.inactive")
+              .font(.title2)
+              .foregroundColor(.secondary)
+            if let url = url {
+              Text(url.lastPathComponent)
+                .font(.caption)
+                .foregroundColor(.secondary)
+            }
+          }
+        )
+        .onChange(of: isActiveDocument) { _, newValue in
+          renderTask?.cancel()
+          renderTask = nil
+
+          if newValue {
+            renderTask = Task {
+              try? await Task.sleep(nanoseconds: 50_000_000)
+              if !Task.isCancelled {
+                await MainActor.run {
+                  shouldRender = true
+                }
+              }
+            }
+          } else {
+            shouldRender = false
+          }
+        }
+        .onAppear {
+          // Initialize focus state properly - don't render by default
+          shouldRender = false
+        }
+    }
+  }
+}