Use onTouchDown instead of onTap for faster View updates

Author: tareksabry1337

Sources/Focuser/TextEditorIntrospect.swift

@@ -19,8 +19,8 @@ public struct FocusModifierTextEditor<Value: FocusStateCompliant & Hashable>: Vi
                     tv.becomeFirstResponder()
                 }
             }
-            .simultaneousGesture(TapGesture().onEnded {
-              focusedField = equals
-            })
+            .onTouchDownGesture {
+                focusedField = equals
+            }
     }
 }

Sources/Focuser/TextFieldIntrospect.swift

@@ -100,8 +100,8 @@ public struct FocusModifier<Value: FocusStateCompliant & Hashable>: ViewModifier
                     }
                 }
             }
-            .simultaneousGesture(TapGesture().onEnded {
+            .onTouchDownGesture {
                 focusedField = equals
-            })
+            }
     }
 }

Sources/Focuser/View+Extension.swift

@@ -0,0 +1,33 @@
+//
+//  File.swift
+//  
+//
+//  Created by Tarek Sabry on 09/12/2022.
+//
+
+import SwiftUI
+
+extension View {
+    func onTouchDownGesture(callback: @escaping () -> Void) -> some View {
+        modifier(OnTouchDownGestureModifier(callback: callback))
+    }
+}
+
+private struct OnTouchDownGestureModifier: ViewModifier {
+    @State private var tapped = false
+    let callback: () -> Void
+
+    func body(content: Content) -> some View {
+        content
+            .simultaneousGesture(DragGesture(minimumDistance: 0)
+                .onChanged { _ in
+                    if !tapped {
+                        tapped = true
+                        callback()
+                    }
+                }
+                .onEnded { _ in
+                    tapped = false
+                })
+    }
+}