Use ObservedObject for binding to prefs in SwiftUI instead of custom property wrappers

Tusker.xcodeproj/project.pbxproj

@@ -9,7 +9,6 @@
 /* Begin PBXBuildFile section */
 		0411610022B442870030A9B7 /* AttachmentViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 041160FE22B442870030A9B7 /* AttachmentViewController.swift */; };
 		0411610122B442870030A9B7 /* AttachmentViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = 041160FF22B442870030A9B7 /* AttachmentViewController.xib */; };
-		0427033622B30B3D000D31B6 /* Preference.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0427033522B30B3D000D31B6 /* Preference.swift */; };
 		0427033822B30F5F000D31B6 /* BehaviorPrefsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0427033722B30F5F000D31B6 /* BehaviorPrefsView.swift */; };
 		0427033A22B31269000D31B6 /* AdvancedPrefsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0427033922B31269000D31B6 /* AdvancedPrefsView.swift */; };
 		0427037C22B316B9000D31B6 /* SilentActionPrefs.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0427037B22B316B9000D31B6 /* SilentActionPrefs.swift */; };
@@ -269,7 +268,6 @@
 /* Begin PBXFileReference section */
 		041160FE22B442870030A9B7 /* AttachmentViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AttachmentViewController.swift; sourceTree = "<group>"; };
 		041160FF22B442870030A9B7 /* AttachmentViewController.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = AttachmentViewController.xib; sourceTree = "<group>"; };
-		0427033522B30B3D000D31B6 /* Preference.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Preference.swift; sourceTree = "<group>"; };
 		0427033722B30F5F000D31B6 /* BehaviorPrefsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BehaviorPrefsView.swift; sourceTree = "<group>"; };
 		0427033922B31269000D31B6 /* AdvancedPrefsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AdvancedPrefsView.swift; sourceTree = "<group>"; };
 		0427037B22B316B9000D31B6 /* SilentActionPrefs.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SilentActionPrefs.swift; sourceTree = "<group>"; };
@@ -876,7 +874,6 @@
 			children = (
 				D663626121360B1900C9CBA2 /* Preferences.swift */,
 				D663626321360D2300C9CBA2 /* AvatarStyle.swift */,
-				0427033522B30B3D000D31B6 /* Preference.swift */,
 				D6DD353C22F28CD000A9563A /* ContentWarningCopyMode.swift */,
 				D6DD353E22F502EC00A9563A /* Preferences+Notification.swift */,
 				D6BC9DB4232D4CE3002CA326 /* NotificationsMode.swift */,
@@ -1606,7 +1603,6 @@
 				D6C693EF216192C2007D6A6D /* TuskerNavigationDelegate.swift in Sources */,
 				D6C94D872139E62700CB5196 /* LargeImageViewController.swift in Sources */,
 				D6434EB3215B1856001A919A /* XCBRequest.swift in Sources */,
-				0427033622B30B3D000D31B6 /* Preference.swift in Sources */,
 				D663626221360B1900C9CBA2 /* Preferences.swift in Sources */,
 				D6333B792139AEFD00CE884A /* Date+TimeAgo.swift in Sources */,
 				D641C77F213DC78A004B4513 /* InlineTextAttachment.swift in Sources */,

Tusker/Preferences/Preference.swift

@@ -1,60 +0,0 @@
-//  Preference.swift
-//  Tusker
-//
-//  Created by Shadowfacts on 6/13/19.
-//  Copyright © 2019 Shadowfacts. All rights reserved.
-//
-
-import SwiftUI
-
-@propertyWrapper
-struct Preference<Value> {
-    let path: WritableKeyPath<Preferences, Value>
-    let binding: Binding<Value>
-    
-    init(_ path: WritableKeyPath<Preferences, Value>) {
-        self.path = path
-        self.binding = Binding(get: {
-            return Preferences.shared[keyPath: path]
-        }, set: { (newValue) in
-            Preferences.shared[keyPath: path] = newValue
-        })
-    }
-    
-    var wrappedValue: Value {
-        get {
-            return Preferences.shared[keyPath: path]
-        }
-        set {
-            Preferences.shared[keyPath: path] = newValue
-        }
-    }
-}
-
-@propertyWrapper
-struct MappedPreference<Value, PrefValue> {
-    let path: WritableKeyPath<Preferences, PrefValue>
-    let fromPref: (PrefValue) -> Value
-    let toPref: (Value) -> PrefValue
-    let binding: Binding<Value>
-    
-    init(_ path: WritableKeyPath<Preferences, PrefValue>, fromPref: @escaping (PrefValue) -> Value, toPref: @escaping (Value) -> PrefValue) {
-        self.path = path
-        self.fromPref = fromPref
-        self.toPref = toPref
-        self.binding = Binding(get: {
-            return fromPref(Preferences.shared[keyPath: path])
-        }, set: { (newValue) in
-            Preferences.shared[keyPath: path] = toPref(newValue)
-        })
-    }
-    
-    var wrappedValue: Value {
-        get {
-            return fromPref(Preferences.shared[keyPath: path])
-        }
-        set {
-            Preferences.shared[keyPath: path] = toPref(newValue)
-        }
-    }
-}

Tusker/Preferences/Preferences.swift

@@ -73,9 +73,6 @@ class Preferences: Codable, ObservableObject {
         try container.encode(statusContentType, forKey: .statusContentType)
     }
     
-    typealias ObjectWillChangePublisher = PassthroughSubject<Preferences, Never>
-    let objectWillChange = PassthroughSubject<Preferences, Never>()
-    
     // MARK: - Appearance
     @Published var showRepliesInProfiles = false
     @Published var avatarStyle = AvatarStyle.roundRect

Tusker/Screens/Preferences/AdvancedPrefsView.swift

@@ -9,8 +9,8 @@ import SwiftUI
 import Pachyderm
 
 struct AdvancedPrefsView : View {
-    @Preference(\.statusContentType) var statusContentType: StatusContentType
+    @ObservedObject var preferences = Preferences.shared
-    
+
     var body: some View {
         List {
             formattingSection
@@ -25,7 +25,7 @@ struct AdvancedPrefsView : View {
     
     var formattingSection: some View {
         Section(footer: formattingFooter) {
-            Picker(selection: _statusContentType.binding, label: Text("Post Content Type")) {
+            Picker(selection: $preferences.statusContentType, label: Text("Post Content Type")) {
                 ForEach(StatusContentType.allCases, id: \.self) { type in
                     Text(type.displayName).tag(type)
                 }//.navigationBarTitle("Post Content Type")

Tusker/Screens/Preferences/AppearancePrefsView.swift

@@ -8,21 +8,23 @@
 import SwiftUI
 
 struct AppearancePrefsView : View {
-    @Preference(\.showRepliesInProfiles) var showRepliesInProfiles: Bool
+    @ObservedObject var preferences = Preferences.shared
-    @Preference(\.hideCustomEmojiInUsernames) var hideCustomEmojiInUsernames: Bool
+
-    
+    var useCircularAvatars: Binding<Bool> = Binding(get: {
-    @MappedPreference(\.avatarStyle, fromPref: { $0 == .circle }, toPref: { $0 ? .circle : .roundRect })
+        Preferences.shared.avatarStyle == .circle
-    var useCircularAvatars: Bool
+    }) {
-    
+        Preferences.shared.avatarStyle = $0 ? .circle : .roundRect
+    }
+
     var body: some View {
         List {
-            Toggle(isOn: _showRepliesInProfiles.binding) {
+            Toggle(isOn: $preferences.showRepliesInProfiles) {
                 Text("Show Replies in Profiles")
             }
-            Toggle(isOn: _useCircularAvatars.binding) {
+            Toggle(isOn: useCircularAvatars) {
                 Text("Use Circular Avatars")
             }
-            Toggle(isOn: _hideCustomEmojiInUsernames.binding) {
+            Toggle(isOn: $preferences.hideCustomEmojiInUsernames) {
                 Text("Hide Custom Emoji in Usernames")
             }
         }

Tusker/Screens/Preferences/BehaviorPrefsView.swift

@@ -8,12 +8,9 @@
 import SwiftUI
 import Pachyderm
 
-struct BehaviorPrefsView : View {
+struct BehaviorPrefsView: View {
-    @Preference(\.defaultPostVisibility) var defaultPostVisibility: Status.Visibility
+    @ObservedObject var preferences = Preferences.shared
-    @Preference(\.automaticallySaveDrafts) var automaticallySaveDrafts: Bool
+
-    @Preference(\.contentWarningCopyMode) var contentWarningCopyMode: ContentWarningCopyMode
-    @Preference(\.openLinksInApps) var openLinksInApps: Bool
-    
     var body: some View {
         List {
             section1
@@ -24,7 +21,7 @@ struct BehaviorPrefsView : View {
     
     var section1: some View {
         Section(header: Text("COMPOSING")) {
-            Picker(selection: _defaultPostVisibility.binding, label: Text("Default Post Visibility")) {
+            Picker(selection: $preferences.defaultPostVisibility, label: Text("Default Post Visibility")) {
                 ForEach(Status.Visibility.allCases, id: \.self) { visibility in
                     HStack {
                         Image(systemName: visibility.imageName)
@@ -34,10 +31,10 @@ struct BehaviorPrefsView : View {
                 }//.navigationBarTitle("Default Post Visibility")
                 // navbar title on the ForEach is currently incorrectly applied when the picker is not expanded, see FB6838291
             }
-            Toggle(isOn: _automaticallySaveDrafts.binding) {
+            Toggle(isOn: $preferences.automaticallySaveDrafts) {
                 Text("Automatically Save Drafts")
             }
-            Picker(selection: _contentWarningCopyMode.binding, label: Text("Content Warning Copy Style")) {
+            Picker(selection: $preferences.contentWarningCopyMode, label: Text("Content Warning Copy Style")) {
                 Text("As-is").tag(ContentWarningCopyMode.asIs)
                 Text("Prepend 're: '").tag(ContentWarningCopyMode.prependRe)
                 Text("Don't copy").tag(ContentWarningCopyMode.doNotCopy)
@@ -47,7 +44,7 @@ struct BehaviorPrefsView : View {
     
     var section2: some View {
         Section(header: Text("READING")) {
-            Toggle(isOn: _openLinksInApps.binding) {
+            Toggle(isOn: $preferences.openLinksInApps) {
                 Text("Open Links in Apps")
             }
         }

Tusker/Screens/Preferences/WellnessPrefsView.swift

@@ -9,9 +9,8 @@
 import SwiftUI
 
 struct WellnessPrefsView: View {
-    @Preference(\.showFavoriteAndReblogCounts) var showFavoriteAndReblogCounts: Bool
+    @ObservedObject var preferences = Preferences.shared
-    @Preference(\.defaultNotificationsMode) var defaultNotificationsMode: NotificationsMode
+
-    
     var body: some View {
         List {
             showFavAndReblogCountSection
@@ -22,7 +21,7 @@ struct WellnessPrefsView: View {
     
     var showFavAndReblogCountSection: some View {
         Section(footer: showFavAndReblogCountFooter) {
-            Toggle(isOn: _showFavoriteAndReblogCounts.binding) {
+            Toggle(isOn: $preferences.showFavoriteAndReblogCounts) {
                 Text("Show Favorite and Reblog Counts")
             }
         }
@@ -34,7 +33,7 @@ struct WellnessPrefsView: View {
     
     var notificationsModeSection: some View {
         Section(footer: notificationsModeFooter) {
-            Picker(selection: _defaultNotificationsMode.binding, label: Text("Default Notifications Mode")) {
+            Picker(selection: $preferences.defaultNotificationsMode, label: Text("Default Notifications Mode")) {
                 ForEach(NotificationsMode.allCases, id: \.self) { type in
                     Text(type.displayName).tag(type)
                 }