Clean up path animation

Signal/src/Loki/Utilities/UIView+Glow.swift

@@ -5,14 +5,16 @@ extension UIView {
         let size: CGFloat
         let color: UIColor
         let isAnimated: Bool
+        let animationDuration: TimeInterval
         let offset: CGSize
         let opacity: Float
         let radius: CGFloat
 
-        init(size: CGFloat, color: UIColor, isAnimated: Bool, offset: CGSize = CGSize(width: 0, height: 0.8), opacity: Float = isLightMode ? 0.4 : 1, radius: CGFloat) {
+        init(size: CGFloat, color: UIColor, isAnimated: Bool, animationDuration: TimeInterval = 0.25, offset: CGSize = CGSize(width: 0, height: 0.8), opacity: Float = isLightMode ? 0.4 : 1, radius: CGFloat) {
             self.size = size
             self.color = color
             self.isAnimated = isAnimated
+            self.animationDuration = animationDuration
             self.offset = offset
             self.opacity = opacity
             self.radius = radius
@@ -26,7 +28,7 @@ extension UIView {
             let pathAnimation = CABasicAnimation(keyPath: "shadowPath")
             pathAnimation.fromValue = layer.shadowPath
             pathAnimation.toValue = newPath
-            pathAnimation.duration = 0.25
+            pathAnimation.duration = configuration.animationDuration
             layer.add(pathAnimation, forKey: pathAnimation.keyPath)
         }
         layer.shadowPath = newPath
@@ -35,7 +37,7 @@ extension UIView {
             let colorAnimation = CABasicAnimation(keyPath: "shadowColor")
             colorAnimation.fromValue = layer.shadowColor
             colorAnimation.toValue = newColor
-            colorAnimation.duration = 0.25
+            colorAnimation.duration = configuration.animationDuration
             layer.add(colorAnimation, forKey: colorAnimation.keyPath)
         }
         layer.shadowColor = newColor

Signal/src/Loki/View Controllers/PathVC.swift

@@ -132,7 +132,7 @@ final class PathVC : BaseVC {
     // MARK: General
     private func getPathRow(title: String, subtitle: String?, location: LineView.Location, dotAnimationStartDelay: Double, dotAnimationRepeatInterval: Double) -> UIStackView {
         let lineView = LineView(location: location, dotAnimationStartDelay: dotAnimationStartDelay, dotAnimationRepeatInterval: dotAnimationRepeatInterval)
-        lineView.set(.width, to: Values.pathRowDotSize)
+        lineView.set(.width, to: Values.pathRowExpandedDotSize)
         lineView.set(.height, to: Values.pathRowHeight)
         let titleLabel = UILabel()
         titleLabel.textColor = Colors.text
@@ -190,7 +190,9 @@ private final class LineView : UIView {
     private lazy var dotView: UIView = {
         let result = UIView()
         result.layer.cornerRadius = Values.pathRowDotSize / 2
-        let glowConfiguration = UIView.CircularGlowConfiguration(size: Values.pathRowDotSize, color: Colors.accent, isAnimated: true, radius: isLightMode ? 2 : 4)
+        let glowRadius: CGFloat = isLightMode ? 1 : 2
+        let glowColor = isLightMode ? UIColor.black.withAlphaComponent(0.4) : UIColor.black
+        let glowConfiguration = UIView.CircularGlowConfiguration(size: Values.pathRowDotSize, color: glowColor, isAnimated: true, animationDuration: 0.5, radius: glowRadius)
         result.setCircularGlow(with: glowConfiguration)
         result.backgroundColor = Colors.accent
         return result
@@ -254,17 +256,19 @@ private final class LineView : UIView {
 
     private func expandDot() {
         let newSize = Values.pathRowExpandedDotSize
-        let newGlowRadius: CGFloat = isLightMode ? 6 : 8
-        updateDotView(size: newSize, glowRadius: newGlowRadius)
+        let newGlowRadius: CGFloat = isLightMode ? 4 : 6
+        let newGlowColor = Colors.accent.withAlphaComponent(0.6)
+        updateDotView(size: newSize, glowRadius: newGlowRadius, glowColor: newGlowColor)
     }
 
     private func collapseDot() {
         let newSize = Values.pathRowDotSize
-        let newGlowRadius: CGFloat = isLightMode ? 2 : 4
-        updateDotView(size: newSize, glowRadius: newGlowRadius)
+        let newGlowRadius: CGFloat = isLightMode ? 1 : 2
+        let newGlowColor = isLightMode ? UIColor.black.withAlphaComponent(0.4) : UIColor.black
+        updateDotView(size: newSize, glowRadius: newGlowRadius, glowColor: newGlowColor)
     }
 
-    private func updateDotView(size: CGFloat, glowRadius: CGFloat) {
+    private func updateDotView(size: CGFloat, glowRadius: CGFloat, glowColor: UIColor) {
         let frame = CGRect(center: dotView.center, size: CGSize(width: size, height: size))
         dotViewWidthConstraint.constant = size
         dotViewHeightConstraint.constant = size
@@ -272,8 +276,7 @@ private final class LineView : UIView {
             self.layoutIfNeeded()
             self.dotView.frame = frame
             self.dotView.layer.cornerRadius = size / 2
-            let glowColor = Colors.accent
-            let glowConfiguration = UIView.CircularGlowConfiguration(size: size, color: glowColor, isAnimated: true, radius: glowRadius)
+            let glowConfiguration = UIView.CircularGlowConfiguration(size: size, color: glowColor, isAnimated: true, animationDuration: 0.5, radius: glowRadius)
             self.dotView.setCircularGlow(with: glowConfiguration)
             self.dotView.backgroundColor = Colors.accent
         }