Some multiple tab fixes

SBrowser/Browser View/BrowserViewController.swift

@@ -44,33 +44,33 @@ class BrowserViewController: UIViewController, WKNavigationDelegate,
         browserView.toolbarView = toolbarController.toolbarView
         
         // Refresh button
-        toolbarController.urlBar.refreshButton.addAction(UIAction(handler: { [webView] action in
-            if webView.isLoading {
-                webView.stopLoading()
+        toolbarController.urlBar.refreshButton.addAction(UIAction(handler: { [unowned self] action in
+            if self.webView.isLoading {
+                self.webView.stopLoading()
             } else {
-                webView.reload()
+                self.webView.reload()
             }
         }), for: .touchUpInside)
         
         // Back button
-        toolbarController.backButton.addAction(UIAction(handler: { [webView] _ in
-            webView.goBack()
+        toolbarController.backButton.addAction(UIAction(handler: { [unowned self] _ in
+            self.webView.goBack()
         }), for: .touchUpInside)
         
         // Forward button
-        toolbarController.forwardButton.addAction(UIAction(handler: { [webView] _ in
-            webView.goForward()
+        toolbarController.forwardButton.addAction(UIAction(handler: { [unowned self] _ in
+            self.webView.goForward()
         }), for: .touchUpInside)
         
         // Share button
-        toolbarController.shareButton.addAction(UIAction(handler: { [unowned self, webView, toolbarController] _ in
-            if let url = webView.url {
+        toolbarController.shareButton.addAction(UIAction(handler: { [unowned self, toolbarController] _ in
+            if let url = self.webView.url {
                 let itemProvider = NSItemProvider(item: url as NSURL, typeIdentifier: UTType.url.identifier)
                 let config = UIActivityItemsConfiguration(itemProviders: [ itemProvider ])
                 config.metadataProvider = { metadataKey in
                     switch metadataKey {
-                        case .title: return webView.title
-                        case .messageBody: return webView.title
+                        case .title: return self.webView.title
+                    case .messageBody: return self.webView.title
                         default: return nil
                     }
                 }
@@ -142,6 +142,8 @@ class BrowserViewController: UIViewController, WKNavigationDelegate,
         
         if let urlString = webView.url?.absoluteString {
             toolbarController.urlBar.textField.text = urlString
+        } else {
+            toolbarController.urlBar.textField.text = ""
         }
     }
     
@@ -191,7 +193,13 @@ class BrowserViewController: UIViewController, WKNavigationDelegate,
     }
     
     private func updateScriptBlockerButton() {
-        toolbarController.scriptControllerIconView.setBlockedScriptsNumber(tab.blockedScriptOrigins.count)
+        var numBlockedScripts: Int = tab.blockedScriptOrigins.count
+        if tab.javaScriptEnabled == false {
+            // Because the page is blocked too, notify.
+            numBlockedScripts += 1
+        }
+        
+        toolbarController.scriptControllerIconView.setBlockedScriptsNumber(numBlockedScripts)
     }
         
     // MARK: UIPopoverPresentationControllerDelegate
@@ -205,7 +213,9 @@ class BrowserViewController: UIViewController, WKNavigationDelegate,
     
     func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
         // Reset tracking this
+        tab.allowedScriptOrigins.removeAll()
         tab.blockedScriptOrigins.removeAll()
+        updateScriptBlockerButton()
         
         updateTitleAndURL(forWebView: webView)
         

SBrowser/Script Policy UI/ScriptControllerIconView.swift

@@ -46,6 +46,6 @@ class ScriptControllerIconView: UIButton
         
         labelView.sizeToFit()
         labelView.center = CGPoint(x: bounds.center.x + 10, y: bounds.center.y + 10)
-        labelView.bounds = labelView.bounds.insetBy(dx: -2.0, dy: -2.0)
+        labelView.bounds = labelView.bounds.insetBy(dx: -3.0, dy: -2.0)
     }
 }

SBrowser/Tabs/Tab.swift

@@ -17,12 +17,15 @@ class Tab: NSObject, SBRProcessBundleBridgeDelegate
 {
     public weak var delegate: TabDelegate?
     
-    public let homeURL: URL
+    public let homeURL: URL?
     public let bridge = SBRProcessBundleBridge()
     public var webView: WKWebView {
         if self.loadedWebView == nil {
             self.loadedWebView = bridge.webView
-            beginLoadingURL(homeURL)
+            
+            if let homeURL = homeURL {
+                beginLoadingURL(homeURL)
+            }
         }
         
         return bridge.webView
@@ -49,11 +52,15 @@ class Tab: NSObject, SBRProcessBundleBridgeDelegate
     private var titleObservation: NSKeyValueObservation?
     private var urlObservation: NSKeyValueObservation?
     
-    convenience init(urlString: String, policyManager: ResourcePolicyManager) {
-        self.init(url: URL(string: urlString)!, policyManager: policyManager)
+    convenience init(policyManager: ResourcePolicyManager) {
+        self.init(url: nil, policyManager: policyManager)
     }
     
-    init(url: URL, policyManager: ResourcePolicyManager) {
+    convenience init(urlString: String, policyManager: ResourcePolicyManager) {
+        self.init(url: URL(string: urlString), policyManager: policyManager)
+    }
+    
+    init(url: URL?, policyManager: ResourcePolicyManager) {
         self.homeURL = url
         self.policyManager = policyManager
         bridge.policyDataSource = policyManager

SBrowser/Tabs/TabController.swift

@@ -26,7 +26,7 @@ class TabController
     }
     
     func createNewTab() -> Tab {
-        let tab = Tab(urlString: "about:blank", policyManager: policyManager)
+        let tab = Tab(policyManager: policyManager)
         tabs.append(tab)
         
         return tab

SBrowser/Tabs/TabPickerViewController.swift

@@ -63,20 +63,28 @@ class TabPickerViewController: UIViewController, UICollectionViewDelegate
             var config = listCell.defaultContentConfiguration()
             
             if let tab = self.tabController.tab(forIdentifier: item) {
-                if let title = tab.title {
+                if let title = tab.title, title.count > 0 {
                     config.text = title
                     config.secondaryText = tab.url?.absoluteString
+                } else if let url = tab.url {
+                    config.text = url.absoluteString
+                    config.secondaryText = url.absoluteString
                 } else {
-                    config.text = tab.url?.absoluteString
-                    config.secondaryText = tab.url?.absoluteString
+                    config.text = "New Tab"
                 }
                 
+                config.textProperties.numberOfLines = 1
+                config.secondaryTextProperties.numberOfLines = 1
+                
                 if let image = tab.favicon {
                     config.image = image
-                    config.imageProperties.maximumSize = CGSize(width: 21.0, height: 21.0)
-                    config.imageProperties.cornerRadius = 3.0
+                } else {
+                    config.image = UIImage(systemName: "safari")
                 }
                 
+                config.imageProperties.maximumSize = CGSize(width: 21.0, height: 21.0)
+                config.imageProperties.cornerRadius = 3.0
+                
                 if tab == self.selectedTab {
                     listCell.accessories = [ .checkmark() ]
                 } else {