Add ability to record screen although not 100% satisfied with it.

SimDirs/Model/SimCtl.swift

@@ -8,14 +8,24 @@
 import Foundation
 
 struct SimCtl {
-    func run(args: [String]) throws -> Data {
+    func run(args: [String], run: Bool = true) throws -> Process {
         let process = Process()
-        let pipe    = Pipe()
         
         process.executableURL = URL(fileURLWithPath: "/usr/bin/xcrun")
         process.arguments = ["simctl"] + args
-        process.standardOutput = pipe
         process.standardError = nil
+        if run {
+            try process.run()
+        }
+        
+        return process
+    }
+    
+    func run(args: [String]) throws -> Data {
+        let process : Process = try run(args: args, run: false)
+        let pipe    = Pipe()
+        
+        process.standardOutput = pipe
         try process.run()
         
         return pipe.fileHandleForReading.readDataToEndOfFile()
@@ -119,4 +129,8 @@ struct SimCtl {
     func saveScreen(_ device: SimDevice, url: URL) throws {
         try runAsync(args: ["io", device.udid, "screenshot", url.path])
     }
+    
+    func saveVideo(_ device: SimDevice, url: URL) throws -> Process {
+        return try run(args: ["io", device.udid, "recordVideo", "--force", url.path])
+    }
 }

SimDirs/Model/SimDevice.swift

@@ -27,6 +27,8 @@ class SimDevice: ObservableObject, Decodable {
     @Published var appearance           = Appearance.unknown
     @Published var contentSize          = ContentSize.unknown
     @Published var increaseContrast     = IncreaseContrast.unknown
+    @Published var isRecording          = false
+    var recordingProcess                : Process?
     var isTransitioning                 : Bool { state == .booting || state == .shuttingDown }
     var isBooted                        : Bool {
         get { state.showBooted == true }
@@ -190,6 +192,28 @@ class SimDevice: ObservableObject, Decodable {
             print("Failed to save screen: \(error)")
         }
     }
+
+    func saveVideo(_ url: URL) {
+        do {
+            recordingProcess = try SimCtl().saveVideo(self, url: url)
+            if recordingProcess != nil {
+                isRecording = true
+            }
+        } catch {
+            print("Failed to save video: \(error)")
+        }
+    }
+    
+    func endRecording() {
+        if let process = recordingProcess {
+            process.interrupt()
+            recordingProcess = nil
+            isRecording = false
+        }
+        else {
+            isRecording = false
+        }
+    }
 }
 
 extension SimDevice {

SimDirs/Views/Model Views/DeviceContent.swift

@@ -6,6 +6,7 @@
 //
 
 import SwiftUI
+import UniformTypeIdentifiers
 
 extension SimDevice {
     public var content      : some View { DeviceContent(self) }
@@ -45,6 +46,25 @@ extension SimDevice.IncreaseContrast: ToggleDescriptor {
 }
 
 struct DeviceContent: View {
+    enum SaveType {
+        case image
+        case video
+        
+        var allowedContentTypes : [UTType] {
+            switch self {
+                case .image:    return [.png]
+                case .video:    return [.mpeg4Movie]
+            }
+        }
+        
+        var title : String {
+            switch self {
+                case .image:    return "Save Screen"
+                case .video:    return "Save Recording"
+            }
+        }
+    }
+    
     @ObservedObject var device  : SimDevice
     @State var isBooted         : Bool
     
@@ -77,6 +97,23 @@ struct DeviceContent: View {
             .font(.subheadline)
             .textSelection(.enabled)
             
+            ContentHeader("Actions")
+            HStack(spacing: 16) {
+                Button(action: { saveScreen(.image) }) {
+                    Text("Save Screen")
+                        .fontWeight(.semibold)
+                        .font(.system(size: 11))
+                }
+                .buttonStyle(.systemIcon("camera.on.rectangle"))
+                
+                Button(action: { device.isRecording ? device.endRecording() : saveScreen(.video) }) {
+                    Text(device.isRecording ? "End Recording" : "Record Screen")
+                        .fontWeight(.semibold)
+                        .font(.system(size: 11))
+                }
+                .buttonStyle(.systemIcon("record.circle", active: device.isRecording))
+            }
+
             ContentHeader("UI")
             HStack(spacing: 16) {
                 if device.appearance != .unsupported {
@@ -99,14 +136,6 @@ struct DeviceContent: View {
                     .opacity(isBooted ? 1.0 : 0.5)
                 }
             }
-            
-            ContentHeader("Actions")
-            Button(action: saveScreen) {
-                Text("Save Screen")
-                    .fontWeight(.semibold)
-                    .font(.system(size: 11))
-            }
-            .buttonStyle(.systemIcon("camera.on.rectangle"))
         }
         .environment(\.isEnabled, isBooted)
         .onAppear {
@@ -124,21 +153,24 @@ struct DeviceContent: View {
             }
         }
     }
-
+    
-    func saveScreen() {
+    func saveScreen(_ type: SaveType = .image) {
         let savePanel = NSSavePanel()
         
-        savePanel.allowedContentTypes = [.png]
+        savePanel.allowedContentTypes = type.allowedContentTypes
         savePanel.canCreateDirectories = true
         savePanel.isExtensionHidden = false
-        savePanel.title = "Save Screen"
+        savePanel.title = type.title
         savePanel.message = "Select destination"
         savePanel.nameFieldLabel = "Filename:"
         savePanel.nameFieldStringValue = "\(device.name) - \(fileDateFormatter.string(from: Date()))"
 
         if savePanel.runModal() == .OK {
             if let url = savePanel.url {
-                device.saveScreen(url)
+                switch type {
+                    case .image: device.saveScreen(url)
+                    case .video: device.saveVideo(url)
+                }
             }
         }
     }

SimDirs/Views/Styles/SystemIconButtonStyle.swift

@@ -8,17 +8,19 @@
 import SwiftUI
 
 extension ButtonStyle where Self == SystemIconButtonStyle {
-    static func systemIcon(_ imageName: String) -> SystemIconButtonStyle {
+    static func systemIcon(_ imageName: String, active: Bool = false) -> SystemIconButtonStyle {
-        SystemIconButtonStyle(imageName)
+        SystemIconButtonStyle(imageName, active: active)
     }
 }
 
 struct SystemIconButtonStyle: ButtonStyle {
     @State var isFocused    = false
+    let isActive            : Bool
     let imageName           : String
     
-    init(_ imageName: String) {
+    init(_ imageName: String, active: Bool = false) {
         self.imageName = imageName
+        self.isActive = active
     }
     
     func makeBody(configuration: Configuration) -> some View {
@@ -32,11 +34,12 @@ struct SystemIconButtonStyle: ButtonStyle {
                     .resizable()
                     .aspectRatio(contentMode: ContentMode.fit)
                     .frame(width: 24, height: 24)
+                    .foregroundColor(isActive ? .accentColor : foregroundColor(pressed: configuration.isPressed))
             }
             
             configuration.label
+                .foregroundColor(foregroundColor(pressed: configuration.isPressed))
         }
-        .foregroundColor(foregroundColor(pressed: configuration.isPressed))
         .padding(1.0)
         .onHover { isFocused = $0 }
     }