fix(KAN-71): use interactive WebKit navigation gestures

native/src-tauri/gen/apple/Sources/kanbangit-native/WorkspaceViewController.swift

@@ -24,7 +24,7 @@ func installIOSWorkspace() {
     }
 }
 
-final class WorkspaceViewController: UIViewController, WKNavigationDelegate, WKUIDelegate, UITextFieldDelegate, UIGestureRecognizerDelegate {
+final class WorkspaceViewController: UIViewController, WKNavigationDelegate, WKUIDelegate, UITextFieldDelegate {
     private let defaults: UserDefaults
     private let serverKey = "ios.activeServer"
     private(set) var server: WorkspaceServer?
@@ -40,9 +40,6 @@ final class WorkspaceViewController: UIViewController, WKNavigationDelegate, WKU
     private let connectButton = UIButton(type: .system)
     private let resumeButton = UIButton(type: .system)
     private let toolbar = UIToolbar()
-    private var gestureStart = CGPoint.zero
-    private var gestureAllowed = false
-    private var gestureRevision = 0
     private var appearance: UISegmentedControl!
 
     init(defaults: UserDefaults = .standard) {
@@ -216,17 +213,8 @@ final class WorkspaceViewController: UIViewController, WKNavigationDelegate, WKU
         let webview = WKWebView(frame: .zero, configuration: configuration)
         webview.navigationDelegate = self
         webview.uiDelegate = self
-        // Native WebKit swipes can skip async pushState entries. One edge recognizer
-        // owns each gesture and traverses the same history that Inertia restores.
-        webview.allowsBackForwardNavigationGestures = false
+        webview.allowsBackForwardNavigationGestures = true
         webview.scrollView.bounces = false
-        for edge: UIRectEdge in [.left, .right] {
-            let gesture = UIScreenEdgePanGestureRecognizer(target: self, action: #selector(navigateGesture(_:)))
-            gesture.edges = edge
-            gesture.delegate = self
-            webview.addGestureRecognizer(gesture)
-            webview.scrollView.panGestureRecognizer.require(toFail: gesture)
-        }
         webview.accessibilityIdentifier = "workspace"
         webview.translatesAutoresizingMaskIntoConstraints = false
         webview.isHidden = true
@@ -285,45 +273,6 @@ final class WorkspaceViewController: UIViewController, WKNavigationDelegate, WKU
         workspace?.isHidden = false
     }
 
-    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
-        guard gestureRecognizer is UIScreenEdgePanGestureRecognizer, let webview = workspace else { return false }
-        gestureStart = touch.location(in: webview)
-        gestureAllowed = false
-        gestureRevision += 1
-        let revision = gestureRevision
-        webview.evaluateJavaScript("window.__kanbanNavigation?.canSwipe(\(gestureStart.x), \(gestureStart.y)) === true") { [weak self, weak gestureRecognizer] result, _ in
-            guard let self, self.gestureRevision == revision, self.workspace === webview else { return }
-            self.gestureAllowed = result as? Bool == true
-            // Release the scroll view immediately when a board, field or overlay owns the touch.
-            if !self.gestureAllowed, gestureRecognizer?.state == .possible { gestureRecognizer?.state = .failed }
-        }
-        return true
-    }
-
-    func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
-        guard let edge = gestureRecognizer as? UIScreenEdgePanGestureRecognizer,
-              let webview = workspace, !webview.isHidden, gestureAllowed else { return false }
-        let velocity = edge.velocity(in: webview)
-        return abs(velocity.x) > abs(velocity.y)
-            && (edge.edges == .left ? webview.canGoBack && velocity.x > 0 : webview.canGoForward && velocity.x < 0)
-    }
-
-    @objc private func navigateGesture(_ gesture: UIScreenEdgePanGestureRecognizer) {
-        guard gesture.state == .ended, let webview = workspace else { return }
-        let direction = gesture.edges == .left ? -1 : 1
-        let distance = gesture.translation(in: webview).x * CGFloat(-direction)
-        let velocity = gesture.velocity(in: webview).x * CGFloat(-direction)
-        guard distance > webview.bounds.width * 0.25 || (distance > 30 && velocity > 500) else { return }
-        navigateHistory(direction, from: gestureStart)
-    }
-
-    func navigateHistory(_ direction: Int, from point: CGPoint) {
-        guard let webview = workspace,
-              direction == -1 ? webview.canGoBack : webview.canGoForward else { return }
-        let script = "if (window.__kanbanNavigation?.canSwipe(\(point.x), \(point.y))) window.__kanbanNavigation.step(\(direction))"
-        webview.evaluateJavaScript(script, completionHandler: nil)
-    }
-
     func webView(_ webView: WKWebView, decidePolicyFor action: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
         guard webView === workspace, let url = action.request.url else { decisionHandler(.cancel); return }
         guard server?.allows(url) == true else {