iOS: Add URL field and toolbar

BrowserCore/NavigationManager.swift

@@ -23,6 +23,11 @@ public class NavigationManager: NSObject, ObservableObject {
         forwardStack = []
     }
     
+    public func reload() {
+        let url = currentURL
+        currentURL = url
+    }
+    
     private func cannonicalizeURL(_ url: URL) -> URL {
         var components = URLComponents(url: url, resolvingAgainstBaseURL: false)!
         if components.scheme == "gemini" && components.port == 1965 {

Gemini-iOS/ContentView.swift

@@ -9,10 +9,92 @@ import SwiftUI
 import BrowserCore
 
 struct ContentView: View {
-    let navigator: NavigationManager
+    @ObservedObject private var navigator: NavigationManager
+    @State private var urlFieldContents: String
+    @State private var showPreferencesSheet = false
+    
+    init(navigator: NavigationManager) {
+        self.navigator = navigator
+        self._urlFieldContents = State(initialValue: navigator.currentURL.absoluteString)
+    }
     
     var body: some View {
-        BrowserView(navigator: navigator)
+        VStack(spacing: 0) {
+            urlBar
+            
+            barBorder
+            
+            Spacer()
+            BrowserView(navigator: navigator)
+            Spacer()
+            
+            barBorder
+            
+            bottomBar
+        }
+        .onReceive(navigator.$currentURL, perform: { (new) in
+            urlFieldContents = new.absoluteString
+        })
+        .sheet(isPresented: $showPreferencesSheet, content: {
+            Text("Test")
+        })
+    }
+    
+    private var barBorder: some View {
+        Rectangle()
+            .frame(height: 1)
+            .foregroundColor(Color(white: 0.75))
+    }
+    
+    private var urlBar: some View {
+        TextField("URL", text: $urlFieldContents, onCommit: commitURL)
+            .keyboardType(.URL)
+            .textFieldStyle(RoundedBorderTextFieldStyle())
+            .padding([.leading, .trailing, .bottom])
+    }
+    
+    private var bottomBar: some View {
+        HStack {
+            Spacer()
+            
+            Button(action: navigator.back, label: {
+                Image(systemName: "arrow.left")
+                    .font(.system(size: 24))
+            })
+            .disabled(navigator.backStack.isEmpty)
+            
+            Spacer()
+            
+            Button(action: navigator.forward, label: {
+                Image(systemName: "arrow.right")
+                    .font(.system(size: 24))
+            })
+            .disabled(navigator.forwardStack.isEmpty)
+            
+            Spacer()
+            
+            Button(action: navigator.reload, label: {
+                Image(systemName: "arrow.clockwise")
+                    .font(.system(size: 24))
+            })
+            
+            Spacer()
+            
+            Button(action: {
+                showPreferencesSheet = true
+            }, label: {
+                Image(systemName: "gear")
+                    .font(.system(size: 24))
+            })
+            
+            Spacer()
+        }
+        .padding(.top, 4)
+    }
+    
+    private func commitURL() {
+        guard let url = URL(string: urlFieldContents) else { return }
+        navigator.changeURL(url)
     }
 }