From fa716268f7ca7d3d8fb5563ab5655c03478579b9 Mon Sep 17 00:00:00 2001
From: Kai Azim <68963405+MrKai77@users.noreply.github.com>
Date: Thu, 7 Sep 2023 18:27:47 -0600
Subject: [PATCH] =?UTF-8?q?=E2=9C=A8=20#25=20Ability=20to=20add=20trigger?=
 =?UTF-8?q?=20delay?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Loop/Extensions/Defaults+Extensions.swift  |  1 +
 Loop/Managers/LoopManager.swift            | 19 +++++++++++++++++--
 Loop/Settings/KeybindingSettingsView.swift | 16 ++++++++++++++++
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/Loop/Extensions/Defaults+Extensions.swift b/Loop/Extensions/Defaults+Extensions.swift
index 79c7f17b..28e5d252 100644
--- a/Loop/Extensions/Defaults+Extensions.swift
+++ b/Loop/Extensions/Defaults+Extensions.swift
@@ -20,6 +20,7 @@ extension Defaults.Keys {
     static let gradientColor = Key<Color>("gradientColor", default: Color(.black))
 
     static let triggerKey = Key<CGKeyCode>("triggerKey", default: .kVK_Function)
+    static let triggerDelay = Key<Float>("triggerDelay", default: 0)
     static let radialMenuCornerRadius = Key<CGFloat>("radialMenuCornerRadius", default: 50)
     static let radialMenuThickness = Key<CGFloat>("radialMenuThickness", default: 22)
 
diff --git a/Loop/Managers/LoopManager.swift b/Loop/Managers/LoopManager.swift
index a7038bc0..de633f61 100644
--- a/Loop/Managers/LoopManager.swift
+++ b/Loop/Managers/LoopManager.swift
@@ -22,13 +22,28 @@ class LoopManager {
     private var frontmostWindow: Window?
     private var screenWithMouse: NSScreen?
 
+    private var timer: DispatchSourceTimer?    // Used when user has configured a trigger delay
+
     func startObservingKeys() {
         NSEvent.addGlobalMonitorForEvents(matching: NSEvent.EventTypeMask.flagsChanged) { event -> Void in
             if event.keyCode == Defaults[.triggerKey] {
                 if event.modifierFlags.rawValue == 256 {
-                    self.closeLoop()
+                    if self.timer != nil {
+                        self.timer?.cancel()
+                        self.timer = nil
+                    } else {
+                        self.closeLoop()
+                    }
                 } else {
-                    self.openLoop()
+                    if self.timer == nil {
+                        self.timer = DispatchSource.makeTimerSource(queue: .main)
+                        self.timer!.schedule(deadline: .now() + .milliseconds(Int(Defaults[.triggerDelay]*1000)))
+                        self.timer!.setEventHandler {
+                            self.openLoop()
+                            self.timer = nil
+                        }
+                        self.timer!.resume()
+                    }
                 }
             }
         }
diff --git a/Loop/Settings/KeybindingSettingsView.swift b/Loop/Settings/KeybindingSettingsView.swift
index 92d4e7b6..717867d2 100644
--- a/Loop/Settings/KeybindingSettingsView.swift
+++ b/Loop/Settings/KeybindingSettingsView.swift
@@ -11,6 +11,7 @@ import Defaults
 struct KeybindingSettingsView: View {
 
     @Default(.triggerKey) var triggerKey
+    @Default(.triggerDelay) var triggerDelay
     @Default(.useSystemAccentColor) var useSystemAccentColor
     @Default(.customAccentColor) var customAccentColor
 
@@ -44,6 +45,21 @@ struct KeybindingSettingsView: View {
                 .onChange(of: triggerKey) { _ in
                     refreshTriggerKeySymbol()
                 }
+
+                HStack {
+                    Stepper(
+                        "Trigger Delay",
+                        value: Binding<Double>(
+                            get: { Double(self.triggerDelay) },
+                            set: { self.triggerDelay = Float($0) }
+                        ),
+                        in: 0...1,
+                        step: 0.1,
+                        format: .number
+                    )
+                    Text("seconds")
+                        .foregroundColor(.secondary)
+                }
             }
 
             Section("Instructions") {