From c421da9a4893a2d0505d0b3058590a78358c2f0c Mon Sep 17 00:00:00 2001
From: Justin Mazzocchi <2831158+jzzocc@users.noreply.github.com>
Date: Sun, 31 Jan 2021 11:23:33 -0800
Subject: [PATCH] Haptic feedback & double-tap settings

---
 Localizations/Localizable.strings             |  2 +
 .../Utilities/AppPreferences.swift            | 12 +++++
 Views/SwiftUI/PreferencesView.swift           |  4 ++
 Views/UIKit/Content Views/StatusView.swift    | 52 ++++++++++++++++++-
 4 files changed, 68 insertions(+), 2 deletions(-)

diff --git a/Localizations/Localizable.strings b/Localizations/Localizable.strings
index 9005f6b..15ab08e 100644
--- a/Localizations/Localizable.strings
+++ b/Localizations/Localizable.strings
@@ -157,6 +157,8 @@
 "preferences.position.remember-position" = "Remember position";
 "preferences.position.sync-position" = "Sync position with web and other devices";
 "preferences.position.newest" = "Load newest";
+"preferences.require-double-tap-to-reblog" = "Require double tap to reblog";
+"preferences.require-double-tap-to-favorite" = "Require double tap to favorite";
 "preferences.show-reblog-and-favorite-counts" = "Show reblog and favorite counts";
 "preferences.status-word" = "Status word";
 "filters.active" = "Active";
diff --git a/ServiceLayer/Sources/ServiceLayer/Utilities/AppPreferences.swift b/ServiceLayer/Sources/ServiceLayer/Utilities/AppPreferences.swift
index 9acede2..02b8a84 100644
--- a/ServiceLayer/Sources/ServiceLayer/Utilities/AppPreferences.swift
+++ b/ServiceLayer/Sources/ServiceLayer/Utilities/AppPreferences.swift
@@ -157,11 +157,23 @@ public extension AppPreferences {
         get { self[.showReblogAndFavoriteCounts] ?? false }
         set { self[.showReblogAndFavoriteCounts] = newValue }
     }
+
+    var requireDoubleTapToReblog: Bool {
+        get { self[.requireDoubleTapToReblog] ?? false }
+        set { self[.requireDoubleTapToReblog] = newValue }
+    }
+
+    var requireDoubleTapToFavorite: Bool {
+        get { self[.requireDoubleTapToFavorite] ?? false }
+        set { self[.requireDoubleTapToFavorite] = newValue }
+    }
 }
 
 private extension AppPreferences {
     enum Item: String {
         case statusWord
+        case requireDoubleTapToReblog
+        case requireDoubleTapToFavorite
         case useSystemReduceMotionForMedia
         case animateAvatars
         case animateHeaders
diff --git a/Views/SwiftUI/PreferencesView.swift b/Views/SwiftUI/PreferencesView.swift
index 4b3f122..89cf71a 100644
--- a/Views/SwiftUI/PreferencesView.swift
+++ b/Views/SwiftUI/PreferencesView.swift
@@ -69,6 +69,10 @@ struct PreferencesView: View {
                         Text(option.localizedStringKey).tag(option)
                     }
                 }
+                Toggle("preferences.require-double-tap-to-reblog",
+                       isOn: $identityContext.appPreferences.requireDoubleTapToReblog)
+                Toggle("preferences.require-double-tap-to-favorite",
+                       isOn: $identityContext.appPreferences.requireDoubleTapToFavorite)
                 if accessibilityReduceMotion {
                     Toggle("preferences.media.use-system-reduce-motion",
                            isOn: $identityContext.appPreferences.useSystemReduceMotionForMedia)
diff --git a/Views/UIKit/Content Views/StatusView.swift b/Views/UIKit/Content Views/StatusView.swift
index 09ee40c..e0871dc 100644
--- a/Views/UIKit/Content Views/StatusView.swift	
+++ b/Views/UIKit/Content Views/StatusView.swift	
@@ -245,13 +245,29 @@ private extension StatusView {
             for: .touchUpInside)
 
         reblogButton.addAction(
-            UIAction { [weak self] _ in self?.statusConfiguration.viewModel.toggleReblogged() },
+            UIAction { [weak self] _ in
+                guard let self = self,
+                      !self.statusConfiguration.viewModel.identityContext.appPreferences.requireDoubleTapToReblog
+                else { return }
+
+                self.reblog()
+            },
             for: .touchUpInside)
 
+        reblogButton.addTarget(self, action: #selector(reblogButtonDoubleTap(sender:event:)), for: .touchDownRepeat)
+
         favoriteButton.addAction(
-            UIAction { [weak self] _ in self?.statusConfiguration.viewModel.toggleFavorited() },
+            UIAction { [weak self] _ in
+                guard let self = self,
+                      !self.statusConfiguration.viewModel.identityContext.appPreferences.requireDoubleTapToFavorite
+                else { return }
+
+                self.favorite()
+            },
             for: .touchUpInside)
 
+        favoriteButton.addTarget(self, action: #selector(favoriteButtonDoubleTap(sender:event:)), for: .touchDownRepeat)
+
         shareButton.addAction(
             UIAction { [weak self] _ in self?.statusConfiguration.viewModel.shareStatus() },
             for: .touchUpInside)
@@ -534,6 +550,38 @@ private extension StatusView {
         menuButton.setImage(UIImage(systemName: "ellipsis",
                                     withConfiguration: UIImage.SymbolConfiguration(scale: scale)), for: .normal)
     }
+
+    @objc func reblogButtonDoubleTap(sender: UIButton, event: UIEvent) {
+        guard
+            statusConfiguration.viewModel.identityContext.appPreferences.requireDoubleTapToReblog,
+            event.allTouches?.first?.tapCount == 2 else {
+            return
+        }
+
+        reblog()
+    }
+
+    @objc func favoriteButtonDoubleTap(sender: UIButton, event: UIEvent) {
+        guard
+            statusConfiguration.viewModel.identityContext.appPreferences.requireDoubleTapToFavorite,
+            event.allTouches?.first?.tapCount == 2 else {
+            return
+        }
+
+        favorite()
+    }
+
+    func reblog() {
+        UIImpactFeedbackGenerator(style: .medium).impactOccurred()
+
+        statusConfiguration.viewModel.toggleReblogged()
+    }
+
+    func favorite() {
+        UIImpactFeedbackGenerator(style: .medium).impactOccurred()
+
+        statusConfiguration.viewModel.toggleFavorited()
+    }
 }
 
 private extension UIButton {