BrowserViewController: break up into extensions

App/Browser View/BrowserViewController+Keyboard.swift

@@ -0,0 +1,103 @@
+//
+//  BrowserViewController+Keyboard.swift
+//  App
+//
+//  Created by James Magahern on 2/17/21.
+//
+
+import Foundation
+
+extension BrowserViewController: ShortcutResponder
+{
+    internal func updateCommandKeyState(forPresses presses: Set<UIPress>) {
+        guard let press = presses.first else { return }
+        
+        if let key = press.key {
+            if key.modifierFlags == [.command] {
+                let isDown = press.phase == .began || press.phase == .changed || press.phase == .stationary
+                self.commandKeyHeld = isDown
+            }
+        }
+    }
+    
+    override func pressesBegan(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
+        super.pressesBegan(presses, with: event)
+        updateCommandKeyState(forPresses: presses)
+    }
+    
+    override func pressesCancelled(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
+        super.pressesCancelled(presses, with: event)
+        updateCommandKeyState(forPresses: presses)
+    }
+    
+    override func pressesEnded(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
+        super.pressesEnded(presses, with: event)
+        updateCommandKeyState(forPresses: presses)
+    }
+
+    // MARK: Keyboard Shortcuts
+    
+    func focusURLBar(_ sender: Any?) {
+        toolbarController.urlBar.textField.becomeFirstResponder()
+    }
+    
+    func goBack(_ sender: Any?) {
+        tab.webView.goBack()
+    }
+    
+    func goForward(_ sender: Any?) {
+        tab.webView.goForward()
+    }
+    
+    func createTab(_ sender: Any?) {
+        createNewTab(withURL: nil)
+    }
+    
+    func previousTab(_ sender: Any?) {
+        if let tabIndex = tabController.tabs.firstIndex(of: self.tab) {
+            if tabIndex - 1 >= 0 {
+                self.tab = tabController.tabs[tabIndex - 1]
+            }
+        }
+    }
+    
+    func nextTab(_ sender: Any?) {
+        if let tabIndex = tabController.tabs.firstIndex(of: self.tab) {
+            if tabIndex + 1 < tabController.tabs.count {
+                self.tab = tabController.tabs[tabIndex + 1]
+            }
+        }
+    }
+    
+    func closeTab(_ sender: Any?) {
+        if tabController.tabs.count > 1 {
+            tabController.closeTab(self.tab)
+        } else {
+            #if targetEnvironment(macCatalyst)
+            if let originWindowScene = self.view.window?.windowScene {
+                UIApplication.shared.requestSceneSessionDestruction(originWindowScene.session, options: nil) { error in
+                    print("Error when requesting scene destruction: " + error.localizedDescription)
+                }
+            }
+            #endif
+        }
+    }
+    
+    func findOnPage(_ sender: Any?) {
+        browserView.setFindOnPageVisible(true, animated: true)
+        findOnPageController.findOnPageView.textField.becomeFirstResponder()
+    }
+    
+    func refresh(_ sender: Any?) {
+        webView.reload()
+    }
+    
+    override func increaseSize(_ sender: Any?) {
+        tab.webView._viewScale += 0.10
+    }
+    
+    override func decreaseSize(_ sender: Any?) {
+        tab.webView._viewScale -= 0.10
+    }
+
+}