Expose constants to public API

Sources/PopoverContainerView.swift

@@ -87,7 +87,7 @@ struct PopoverContainerView: View {
                 /// Add the drag gesture.
                 .simultaneousGesture(
                     /// `minimumDistance: 2` is enough to allow scroll views to scroll, if one is contained in the popover.
-                    DragGesture(minimumDistance: 2)
+                    DragGesture(minimumDistance: Popovers.minimumDragDistance)
                         .onChanged { value in
 
                             func update() {

Sources/PopoverGestureContainer.swift

@@ -25,7 +25,7 @@ class PopoverGestureContainer: UIView {
         super.layoutSubviews()
 
         /// Orientation or screen bounds changed, so update popover frames.
-        popoverModel.updateFrames()
+        popoverModel.updateFramesAfterBoundsChange()
     }
 
     override func didMoveToWindow() {

Sources/PopoverModel.swift

@@ -33,7 +33,7 @@ class PopoverModel: ObservableObject {
     @Published var selectionFrameTags: [String: CGRect] = [:]
 
     /// Force the container view to update.
-    func update() {
+    func reload() {
         objectWillChange.send()
     }
 
@@ -49,10 +49,10 @@ class PopoverModel: ObservableObject {
         }
 
         /// Update all popovers.
-        update()
+        reload()
     }
 
-    /// Adds a `Popover` to this model/
+    /// Adds a `Popover` to this model.
     func add(_ popover: Popover) {
         popovers.append(popover)
     }
@@ -82,7 +82,7 @@ class PopoverModel: ObservableObject {
 
      This is called when the device rotates or has a bounds change.
      */
-    func updateFrames() {
+    func updateFramesAfterBoundsChange() {
         /**
          First, update all popovers anyway.
          
@@ -91,10 +91,12 @@ class PopoverModel: ObservableObject {
         for popover in popovers {
             popover.updateFrame(with: popover.context.size)
         }
-        update()
+
+        /// Reload the container view.
+        reload()
 
         /// Some other popovers need to wait until the rotation has completed before updating.
-        DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
+        DispatchQueue.main.asyncAfter(deadline: .now() + Popovers.frameUpdateDelayAfterBoundsChange) {
             self.refresh(with: Transaction(animation: .default))
         }
     }

Sources/Popovers.swift

@@ -0,0 +1,22 @@
+//
+//  Popovers.swift
+//  Popovers
+//
+//  Created by A. Zheng (github.com/aheze) on 1/17/22.
+//  Copyright © 2022 A. Zheng. All rights reserved.
+//
+
+
+import SwiftUI
+
+/**
+ A collection of constants.
+ */
+public enum Popovers {
+
+    /// The minimum distance a popover needs to be dragged before it starts getting offset.
+    public static var minimumDragDistance = CGFloat(2)
+
+    /// The delay after a bounds change before recalculating popover frames.
+    public static var frameUpdateDelayAfterBoundsChange = CGFloat(0.6)
+}