Add preference for hiding toolbars

Gemini-iOS/BrowserNavigationController.swift

@@ -111,6 +111,17 @@ class BrowserNavigationController: UIViewController {
             .store(in: &cancellables)
         
         view.addGestureRecognizer(UIPanGestureRecognizer(target: self, action: #selector(panGestureRecognized)))
+        
+        Preferences.shared.$hideToolbarsWhenScrolling
+            .sink { [unowned self] (hideToolbarsWhenScrolling) in
+                if !hideToolbarsWhenScrolling {
+                    // animate just in case the preference change came from another window and we're currently visible
+                    UIView.animate(withDuration: 0.2, delay: 0, options: .curveEaseInOut) {
+                        self.toolbarOffset = 0
+                    }
+                }
+            }
+            .store(in: &cancellables)
     }
     
     override func viewDidLayoutSubviews() {
@@ -341,6 +352,7 @@ extension BrowserNavigationController {
 
 extension BrowserNavigationController: UIScrollViewDelegate {
     func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
+        guard Preferences.shared.hideToolbarsWhenScrolling else { return }
         trackingScroll = true
         prevScrollViewContentOffset = scrollView.contentOffset
         scrollStartedBelowEnd = scrollView.contentOffset.y >= (scrollView.contentSize.height - scrollView.bounds.height + scrollView.safeAreaInsets.bottom)

Gemini-iOS/Preferences.swift

@@ -45,6 +45,10 @@ class Preferences: Codable, ObservableObject {
         
         useInAppSafari = try container.decode(Bool.self, forKey: .useInAppSafari)
         useReaderMode = try container.decode(Bool.self, forKey: .useReaderMode)
+        
+        if let stored = try container.decodeIfPresent(Bool.self, forKey: .hideToolbarsWhenScrolling) {
+            hideToolbarsWhenScrolling = stored
+        }
     }
     
     func encode(to encoder: Encoder) throws {
@@ -57,6 +61,8 @@ class Preferences: Codable, ObservableObject {
         
         try container.encode(useInAppSafari, forKey: .useInAppSafari)
         try container.encode(useReaderMode, forKey: .useReaderMode)
+        
+        try container.encode(hideToolbarsWhenScrolling, forKey: .hideToolbarsWhenScrolling)
     }
     
     @Published var homepage = AppDelegate.defaultHomepage
@@ -67,6 +73,8 @@ class Preferences: Codable, ObservableObject {
     @Published var useInAppSafari = false
     @Published var useReaderMode = false
     
+    @Published var hideToolbarsWhenScrolling = true
+    
     enum CodingKeys: String, CodingKey {
         case homepage
         
@@ -75,6 +83,8 @@ class Preferences: Codable, ObservableObject {
         
         case useInAppSafari
         case useReaderMode
+        
+        case hideToolbarsWhenScrolling
     }
     
 }

Gemini-iOS/PreferencesView.swift

@@ -20,6 +20,8 @@ struct PreferencesView: View {
                 appearanceSection
                 
                 safariSection
+                
+                behaviorSection
             }
             .navigationBarTitle("Preferences")
             .insetOrGroupedListStyle()
@@ -69,6 +71,12 @@ struct PreferencesView: View {
                 .disabled(!preferences.useInAppSafari)
         }
     }
+    
+    private var behaviorSection: some View {
+        Section(header: Text("Behavior")) {
+            Toggle("Hide Toolbars When Scrolling", isOn: $preferences.hideToolbarsWhenScrolling)
+        }
+    }
 }
 
 fileprivate extension View {

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

@@ -7,7 +7,7 @@
 		<key>BrowserCore.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>3</integer>
+			<integer>5</integer>
 		</dict>
 		<key>Gemini-iOS.xcscheme_^#shared#^_</key>
 		<dict>
@@ -27,17 +27,17 @@
 		<key>GeminiIntents.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>6</integer>
+			<integer>3</integer>
 		</dict>
 		<key>GeminiProtocol.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>4</integer>
+			<integer>6</integer>
 		</dict>
 		<key>GeminiRenderer.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>5</integer>
+			<integer>4</integer>
 		</dict>
 	</dict>
 	<key>SuppressBuildableAutocreation</key>