Add FrameRateRequest

Sources/LocalConsole/LCManager.swift

@@ -834,9 +834,13 @@ public class LCManager: NSObject, UIGestureRecognizerDelegate {
         }
     }
     
+    let consolePiPPanner_frameRateRequest = FrameRateRequest()
+    
     @objc func consolePiPPanner(recognizer: UIPanGestureRecognizer) {
         
         if recognizer.state == .began {
+            consolePiPPanner_frameRateRequest.isActive = true
+            
             initialViewLocation = consoleView.center
         }
         
@@ -861,6 +865,9 @@ public class LCManager: NSObject, UIGestureRecognizerDelegate {
             
         case .ended, .cancelled:
             
+            consolePiPPanner_frameRateRequest.isActive = true
+            FrameRateRequest().perform(duration: 0.5)
+            
             // After the PiP is thrown, determine the best corner and re-target it there.
             let decelerationRate = UIScrollView.DecelerationRate.normal.rawValue
             
@@ -1115,3 +1122,53 @@ extension TimeInterval {
 fileprivate func _debugPrint(_ items: Any) {
     print(items)
 }
+
+// MARK: Frame Rate Request
+/**
+An object that allows you to manually request an increased display refresh rate on ProMotion devices.
+
+*The display refresh rate does not exceed 60 Hz when low power mode is enabled.*
+
+**Do not set an excessive duration. Doing so will negatively impact battery life.**
+ 
+```
+// Example
+let request = FrameRateRequest(preferredFrameRate: 120,
+                               duration: 0.4)
+request.perform()
+```
+ */
+class FrameRateRequest {
+    
+    lazy private var displayLink = CADisplayLink(target: self, selector: #selector(dummyFunction))
+    
+    var isActive: Bool = false {
+        didSet {
+            guard #available(iOS 15, *) else { return }
+            guard isActive != oldValue else { return }
+            
+            if isActive {
+                displayLink.add(to: .current, forMode: .common)
+            } else {
+                displayLink.remove(from: .current, forMode: .common)
+            }
+        }
+    }
+    
+    /// Prepares your frame rate request parameters.
+    init(preferredFrameRate: Float = Float(UIScreen.main.maximumFramesPerSecond)) {
+        if #available(iOS 15, *) {
+            displayLink.preferredFrameRateRange = CAFrameRateRange(minimum: 30, maximum: Float(UIScreen.main.maximumFramesPerSecond), preferred: preferredFrameRate)
+        }
+    }
+    
+    /// Perform frame rate request.
+    func perform(duration: Double) {
+        isActive = true
+        DispatchQueue.main.asyncAfter(deadline: .now() + duration) { [self] in
+            isActive = false
+        }
+    }
+    
+    @objc private func dummyFunction() {}
+}

Sources/LocalConsole/ResizeController.swift

@@ -115,6 +115,8 @@ class ResizeController {
             // Ensure initial autolayout is performed unanimated.
             LCManager.shared.consoleWindow?.layoutIfNeeded()
             
+            FrameRateRequest().perform(duration: 1.5)
+            
             if isActive {
                 
                 UIViewPropertyAnimator(duration: 0.75, dampingRatio: 1) {
@@ -201,6 +203,8 @@ class ResizeController {
     static let kMinConsoleHeight: CGFloat = 108
     static let kMaxConsoleHeight: CGFloat = 346
     
+    let verticalPanner_frameRateRequest = FrameRateRequest()
+    
     @objc func verticalPanner(recognizer: UIPanGestureRecognizer) {
         
         let translation = recognizer.translation(in: bottomGrabber.superview)
@@ -210,6 +214,8 @@ class ResizeController {
         
         switch recognizer.state {
         case .began:
+            verticalPanner_frameRateRequest.isActive = true
+            
             initialHeight = LCManager.shared.consoleSize.height
             
             UIViewPropertyAnimator(duration: 0.4, dampingRatio: 1) { [self] in
@@ -241,6 +247,10 @@ class ResizeController {
             LCManager.shared.consoleView.center.y = consoleCenterPoint.y
             
         case .ended, .cancelled:
+            verticalPanner_frameRateRequest.isActive = false
+            
+            FrameRateRequest().perform(duration: 0.4)
+            
             UIViewPropertyAnimator(duration: 0.4, dampingRatio: 0.7) {
                 if LCManager.shared.consoleSize.height > maxHeight {
                     LCManager.shared.consoleSize.height = maxHeight
@@ -270,6 +280,8 @@ class ResizeController {
     static let kMinConsoleWidth: CGFloat = 112
     static let kMaxConsoleWidth: CGFloat = UIScreen.portraitSize.width - 56
     
+    let horizontalPanner_frameRateRequest = FrameRateRequest()
+    
     @objc func horizontalPanner(recognizer: UIPanGestureRecognizer) {
         
         let translation = recognizer.translation(in: bottomGrabber.superview)
@@ -279,6 +291,8 @@ class ResizeController {
         
         switch recognizer.state {
         case .began:
+            horizontalPanner_frameRateRequest.isActive = true
+            
             initialWidth = LCManager.shared.consoleSize.width
             
             UIViewPropertyAnimator(duration: 0.4, dampingRatio: 1) { [self] in
@@ -310,6 +324,10 @@ class ResizeController {
             
         case .ended, .cancelled:
             
+            horizontalPanner_frameRateRequest.isActive = false
+            
+            FrameRateRequest().perform(duration: 0.4)
+            
             UIViewPropertyAnimator(duration: 0.4, dampingRatio: 0.7) {
                 if LCManager.shared.consoleSize.width > maxWidth {
                     LCManager.shared.consoleSize.width = maxWidth