make TappableView support long press

lkzhao · Aug 3, 2021 · 36974bd · 36974bd
1 parent 7c1c7a9
commit 36974bd
Showing 1 changed file with 29 additions and 2 deletions.
diff --git a/Sources/UIComponent/Components/TappableView.swift b/Sources/UIComponent/Components/TappableView.swift
@@ -23,8 +23,30 @@ public struct TappableViewConfiguration {
 }
 
 open class TappableView: ComponentView {
-  public var onTap: ((TappableView) -> Void)?
   public var configuration: TappableViewConfiguration?
+
+  lazy var tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(didTap))
+  lazy var longPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(didLongPress))
+
+  public var onTap: ((TappableView) -> Void)? {
+    didSet {
+      if onTap != nil {
+        addGestureRecognizer(tapGestureRecognizer)
+      } else {
+        removeGestureRecognizer(tapGestureRecognizer)
+      }
+    }
+  }
+
+  public var onLongPress: ((TappableView) -> Void)? {
+    didSet {
+      if onLongPress != nil {
+        addGestureRecognizer(longPressGestureRecognizer)
+      } else {
+        removeGestureRecognizer(longPressGestureRecognizer)
+      }
+    }
+  }
 
   open var isHighlighted: Bool = false {
     didSet {
@@ -37,7 +59,6 @@ open class TappableView: ComponentView {
   public override init(frame: CGRect) {
     super.init(frame: frame)
     accessibilityTraits = .button
-    addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(didTap)))
   }
 
   required public init?(coder: NSCoder) {
@@ -64,6 +85,12 @@ open class TappableView: ComponentView {
     config.didTap?(self)
     onTap?(self)
   }
+
+  @objc open func didLongPress() {
+    if longPressGestureRecognizer.state == .began {
+      onLongPress?(self)
+    }
+  }
 }
 
 extension Component {