iOS: Add preferences

BrowserCore/NavigationManager.swift

@@ -7,8 +7,14 @@
 
 import Foundation
 
+public protocol NavigationManagerDelegate: class {
+    func loadNonGeminiURL(_ url: URL)
+}
+
 public class NavigationManager: NSObject, ObservableObject {
     
+    public weak var delegate: NavigationManagerDelegate?
+    
     @Published public var currentURL: URL
     @Published public var backStack = [URL]()
     @Published public var forwardStack = [URL]()
@@ -18,6 +24,11 @@ public class NavigationManager: NSObject, ObservableObject {
     }
     
     public func changeURL(_ url: URL) {
+        guard url.scheme == "gemini" else {
+            delegate?.loadNonGeminiURL(url)
+            return
+        }
+        
         backStack.append(currentURL)
         currentURL = cannonicalizeURL(url)
         forwardStack = []

Gemini-iOS/ContentView.swift

@@ -36,7 +36,7 @@ struct ContentView: View {
             urlFieldContents = new.absoluteString
         })
         .sheet(isPresented: $showPreferencesSheet, content: {
-            Text("Test")
+            PreferencesView(presented: $showPreferencesSheet)
         })
     }
     

Gemini-iOS/Preferences.swift

@@ -0,0 +1,56 @@
+//
+//  Preferences.swift
+//  Gemini-iOS
+//
+//  Created by Shadowfacts on 9/27/20.
+//
+
+import Foundation
+
+class Preferences: Codable, ObservableObject {
+    
+    static let shared: Preferences = load()
+    
+    private static var documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
+    private static var archiveURL = Preferences.documentsDirectory.appendingPathComponent("Preferences").appendingPathExtension("plist")
+    
+    static func save() {
+        let encoder = PropertyListEncoder()
+        let data = try? encoder.encode(shared)
+        try? data?.write(to: archiveURL, options: .noFileProtection)
+    }
+    
+    static func load() -> Preferences {
+        let decoder = PropertyListDecoder()
+        if let data = try? Data(contentsOf: archiveURL),
+           let prefs = try? decoder.decode(Preferences.self, from: data) {
+            return prefs
+        }
+        return Preferences()
+    }
+    
+    private init() {}
+    
+    required init(from decoder: Decoder) throws {
+        let container = try decoder.container(keyedBy: CodingKeys.self)
+        
+        useInAppSafari = try container.decode(Bool.self, forKey: .useInAppSafari)
+        useReaderMode = try container.decode(Bool.self, forKey: .useReaderMode)
+    }
+    
+    func encode(to encoder: Encoder) throws {
+        var container = encoder.container(keyedBy: CodingKeys.self)
+        
+        try container.encode(useInAppSafari, forKey: .useInAppSafari)
+        try container.encode(useReaderMode, forKey: .useReaderMode)
+    }
+    
+    @Published var useInAppSafari = false
+    @Published var useReaderMode = false
+    
+    enum CodingKeys: String, CodingKey {
+        case useInAppSafari
+        case useReaderMode
+    }
+    
+}

Gemini-iOS/PreferencesView.swift

@@ -0,0 +1,61 @@
+//
+//  PreferencesView.swift
+//  Gemini-iOS
+//
+//  Created by Shadowfacts on 9/27/20.
+//
+
+import SwiftUI
+
+struct PreferencesView: View {
+    @ObservedObject var preferences: Preferences = .shared
+    
+    @Binding var presented: Bool
+    
+    var body: some View {
+        NavigationView {
+            List {
+                safariSection
+            }
+            .navigationBarTitle("Preferences")
+            .insetOrGroupedListStyle()
+            .navigationBarItems(trailing: doneButton)
+        }
+    }
+    
+    private var doneButton: some View {
+        Button(action: {
+            presented = false
+        }, label: {
+            Text("Done")
+        })
+    }
+    
+    private var safariSection: some View {
+        Section(header: Text("Safari")) {
+            Toggle("Use In-App Safari", isOn: $preferences.useInAppSafari)
+            
+            Toggle("Use Reader Mode", isOn: $preferences.useReaderMode)
+                .disabled(!preferences.useInAppSafari)
+        }
+    }
+}
+
+fileprivate extension View {
+    @ViewBuilder
+    func insetOrGroupedListStyle() -> some View {
+        if #available(iOS 14.0, *) {
+            self.listStyle(InsetGroupedListStyle())
+        } else {
+            self.listStyle(GroupedListStyle())
+        }
+    }
+}
+
+struct PreferencesView_Previews: PreviewProvider {
+    @State static var presented = true
+    
+    static var previews: some View {
+        PreferencesView(presented: $presented)
+    }
+}

Gemini-iOS/SceneDelegate.swift

@@ -8,6 +8,7 @@
 import UIKit
 import SwiftUI
 import BrowserCore
+import SafariServices
 
 class SceneDelegate: UIResponder, UIWindowSceneDelegate {
 
@@ -20,6 +21,8 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
         // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
         // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
 
+        navigationManager.delegate = self
+        
         // Create the SwiftUI view that provides the window contents.
         let contentView = ContentView(navigator: navigationManager)
 
@@ -63,3 +66,20 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
 
 }
 
+extension SceneDelegate: NavigationManagerDelegate {
+    func loadNonGeminiURL(_ url: URL) {
+        UIApplication.shared.open(url, options: [.universalLinksOnly: true]) { (success) in
+            if !success {
+                if Preferences.shared.useInAppSafari {
+                    let config = SFSafariViewController.Configuration()
+                    config.entersReaderIfAvailable = Preferences.shared.useReaderMode
+                    let vc = SFSafariViewController(url: url, configuration: config)
+                    self.window?.rootViewController?.present(vc, animated: true)
+                } else {
+                    UIApplication.shared.open(url, options: [:])
+                }
+            }
+        }
+    }
+}
+

Gemini.xcodeproj/project.pbxproj

@@ -40,6 +40,8 @@
 		D664673624BD07F700B0B741 /* RenderingBlock.swift in Sources */ = {isa = PBXBuildFile; fileRef = D664673524BD07F700B0B741 /* RenderingBlock.swift */; };
 		D664673824BD086F00B0B741 /* RenderingBlockView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D664673724BD086F00B0B741 /* RenderingBlockView.swift */; };
 		D664673A24BD0B8E00B0B741 /* Fonts.swift in Sources */ = {isa = PBXBuildFile; fileRef = D664673924BD0B8E00B0B741 /* Fonts.swift */; };
+		D691A64E25217C6F00348C4B /* Preferences.swift in Sources */ = {isa = PBXBuildFile; fileRef = D691A64D25217C6F00348C4B /* Preferences.swift */; };
+		D691A66725217FD800348C4B /* PreferencesView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D691A66625217FD800348C4B /* PreferencesView.swift */; };
 		D69F00AC24BE9DD300E37622 /* GeminiDataTask.swift in Sources */ = {isa = PBXBuildFile; fileRef = D69F00AB24BE9DD300E37622 /* GeminiDataTask.swift */; };
 		D69F00AE24BEA29100E37622 /* GeminiResponse.swift in Sources */ = {isa = PBXBuildFile; fileRef = D69F00AD24BEA29100E37622 /* GeminiResponse.swift */; };
 		D6E1529824BFAAA400FDF9D3 /* BrowserWindowController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6E1529624BFAAA400FDF9D3 /* BrowserWindowController.swift */; };
@@ -272,6 +274,8 @@
 		D664673524BD07F700B0B741 /* RenderingBlock.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RenderingBlock.swift; sourceTree = "<group>"; };
 		D664673724BD086F00B0B741 /* RenderingBlockView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RenderingBlockView.swift; sourceTree = "<group>"; };
 		D664673924BD0B8E00B0B741 /* Fonts.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Fonts.swift; sourceTree = "<group>"; };
+		D691A64D25217C6F00348C4B /* Preferences.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Preferences.swift; sourceTree = "<group>"; };
+		D691A66625217FD800348C4B /* PreferencesView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PreferencesView.swift; sourceTree = "<group>"; };
 		D69F00AB24BE9DD300E37622 /* GeminiDataTask.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GeminiDataTask.swift; sourceTree = "<group>"; };
 		D69F00AD24BEA29100E37622 /* GeminiResponse.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GeminiResponse.swift; sourceTree = "<group>"; };
 		D69F00AF24BEA84D00E37622 /* NavigationManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NavigationManager.swift; sourceTree = "<group>"; };
@@ -523,6 +527,8 @@
 				D6E152A424BFFDF500FDF9D3 /* AppDelegate.swift */,
 				D6E152A624BFFDF500FDF9D3 /* SceneDelegate.swift */,
 				D6E152A824BFFDF500FDF9D3 /* ContentView.swift */,
+				D691A64D25217C6F00348C4B /* Preferences.swift */,
+				D691A66625217FD800348C4B /* PreferencesView.swift */,
 				D6E152AA24BFFDF600FDF9D3 /* Assets.xcassets */,
 				D6E152AF24BFFDF600FDF9D3 /* LaunchScreen.storyboard */,
 				D6E152B224BFFDF600FDF9D3 /* Info.plist */,
@@ -1021,8 +1027,10 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				D691A66725217FD800348C4B /* PreferencesView.swift in Sources */,
 				D6E152A524BFFDF500FDF9D3 /* AppDelegate.swift in Sources */,
 				D6E152A724BFFDF500FDF9D3 /* SceneDelegate.swift in Sources */,
+				D691A64E25217C6F00348C4B /* Preferences.swift in Sources */,
 				D6E152A924BFFDF500FDF9D3 /* ContentView.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

Gemini.xcodeproj/xcuserdata/shadowfacts.xcuserdatad/xcschemes/xcschememanagement.plist

@@ -7,7 +7,7 @@
 		<key>BrowserCore.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>2</integer>
+			<integer>4</integer>
 		</dict>
 		<key>Gemini-iOS.xcscheme_^#shared#^_</key>
 		<dict>
@@ -27,7 +27,7 @@
 		<key>GeminiProtocol.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>4</integer>
+			<integer>2</integer>
 		</dict>
 		<key>GeminiRenderer.xcscheme_^#shared#^_</key>
 		<dict>