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 {

native/src-tauri/gen/apple/Tests/WorkspaceTests.swift

@@ -95,7 +95,7 @@ final class WorkspaceTests: XCTestCase {
     }
 
     @MainActor
-    func testGesturesTraverseEverySPAEntryOnceAndPreserveForwardHistory() async throws {
+    func testWebKitOwnsInteractiveGesturesAndKeepsScrollBounds() async throws {
         let name = "KAN71-history-\(UUID())"
         let defaults = try XCTUnwrap(UserDefaults(suiteName: name))
         defer { defaults.removePersistentDomain(forName: name) }
@@ -113,44 +113,16 @@ final class WorkspaceTests: XCTestCase {
             """)
         try await waitFor(webview, "document.querySelector('#draft')?.value === 'unsaved'")
         XCTAssertFalse(webview.canGoBack)
-        controller.navigateHistory(-1, from: CGPoint(x: 1, y: 1))
+        XCTAssertNil(webview.goBack())
+        XCTAssertNil(webview.goForward())
         try await waitFor(webview, "location.pathname === '/dashboard'")
-        for index in 1...3 {
-            _ = try await webview.evaluateJavaScript("history.pushState({page: {url: '/page\(index)'}}, '', '/page\(index)')")
-        }
-        _ = try await webview.evaluateJavaScript("window.steps = 0; addEventListener('popstate', () => window.steps++)")
-        let edge = TestEdgeGesture()
-        edge.edges = .left
-        edge.testVelocity = CGPoint(x: 800, y: 0)
-        XCTAssertTrue(controller.gestureRecognizer(edge, shouldReceive: TestTouch()))
-        var allowed = false
-        for _ in 0..<50 {
-            if controller.gestureRecognizerShouldBegin(edge) { allowed = true; break }
-            try await Task.sleep(for: .milliseconds(20))
-        }
-        XCTAssertTrue(allowed)
-        edge.testState = .cancelled
-        edge.testTranslation = CGPoint(x: 200, y: 0)
-        controller.perform(NSSelectorFromString("navigateGesture:"), with: edge)
-        try await Task.sleep(for: .milliseconds(100))
-        try await waitFor(webview, "location.pathname === '/page3' && window.steps === 0")
-        edge.testState = .ended
-        edge.testTranslation = CGPoint(x: 10, y: 0)
-        controller.perform(NSSelectorFromString("navigateGesture:"), with: edge)
-        try await Task.sleep(for: .milliseconds(100))
-        try await waitFor(webview, "location.pathname === '/page3' && window.steps === 0")
-        edge.testTranslation = CGPoint(x: 200, y: 0)
-        controller.perform(NSSelectorFromString("navigateGesture:"), with: edge)
-        try await waitFor(webview, "location.pathname === '/page2' && window.steps === 1")
-        controller.navigateHistory(-1, from: CGPoint(x: 1, y: 1))
-        try await waitFor(webview, "location.pathname === '/page1' && window.steps === 2")
-        controller.navigateHistory(1, from: CGPoint(x: 1, y: 1))
-        try await waitFor(webview, "location.pathname === '/page2' && window.steps === 3")
+        XCTAssertTrue(webview.allowsBackForwardNavigationGestures)
+        XCTAssertFalse(webview.scrollView.bounces)
+        XCTAssertFalse(controller.responds(to: NSSelectorFromString("navigateGesture:")))
+        let customNavigation = try await webview.evaluateJavaScript("typeof window.__kanbanNavigation")
+        XCTAssertEqual(customNavigation as? String, "undefined")
         let draft = try await webview.evaluateJavaScript("document.querySelector('#draft').value")
         XCTAssertEqual(draft as? String, "unsaved")
-        XCTAssertFalse(webview.scrollView.bounces)
-        XCTAssertFalse(webview.allowsBackForwardNavigationGestures)
-        XCTAssertEqual(webview.gestureRecognizers?.compactMap { $0 as? UIScreenEdgePanGestureRecognizer }.count, 2)
         let toolbar = try XCTUnwrap(controller.view.subviews.compactMap { $0 as? UIToolbar }.first)
         XCTAssertFalse(toolbar.items!.contains { $0.accessibilityIdentifier == "workspaceBack" })
         XCTAssertTrue(toolbar.items!.contains { $0.accessibilityIdentifier == "showServerSettings" })
@@ -158,10 +130,9 @@ final class WorkspaceTests: XCTestCase {
         XCTAssertEqual(scroll as? String, "none")
         let horizontal = try await webview.evaluateJavaScript("getComputedStyle(document.documentElement).overscrollBehaviorX")
         XCTAssertEqual(horizontal as? String, "auto")
-        _ = try await webview.evaluateJavaScript("document.body.insertAdjacentHTML('beforeend', '<div role=dialog style=\"position:fixed;inset:0\">Dialog</div>')")
-        controller.navigateHistory(-1, from: CGPoint(x: 1, y: 1))
-        try await Task.sleep(for: .milliseconds(200))
-        try await waitFor(webview, "location.pathname === '/page2' && window.steps === 3")
+        controller.open(URL(string: "https://other.invalid/")!)
+        XCTAssertTrue(try XCTUnwrap(controller.workspace).allowsBackForwardNavigationGestures,
+                      "Changing workspaces must retain native gesture navigation")
     }
 
     @MainActor
@@ -272,19 +243,3 @@ final class WorkspaceTests: XCTestCase {
     }
 
 }
-
-private final class TestTouch: UITouch {
-    override func location(in view: UIView?) -> CGPoint { CGPoint(x: 1, y: 1) }
-}
-
-private final class TestEdgeGesture: UIScreenEdgePanGestureRecognizer {
-    var testState: UIGestureRecognizer.State = .possible
-    var testVelocity = CGPoint.zero
-    var testTranslation = CGPoint.zero
-    override var state: UIGestureRecognizer.State {
-        get { testState }
-        set { testState = newValue }
-    }
-    override func velocity(in view: UIView?) -> CGPoint { testVelocity }
-    override func translation(in view: UIView?) -> CGPoint { testTranslation }
-}

native/src-tauri/gen/apple/kanbangit-native.xcodeproj/project.pbxproj

@@ -441,7 +441,7 @@
 				CODE_SIGN_ENTITLEMENTS = "kanbangit-native_iOS/kanbangit-native_iOS.entitlements";
 				CODE_SIGN_IDENTITY = "Apple Distribution";
 				CODE_SIGN_STYLE = Manual;
-				CURRENT_PROJECT_VERSION = 4;
+				CURRENT_PROJECT_VERSION = 5;
 				DEVELOPMENT_TEAM = ZZX2KZGTHU;
 				ENABLE_BITCODE = NO;
 				ENABLE_USER_SCRIPT_SANDBOXING = NO;
@@ -457,7 +457,7 @@
 				);
 				"LIBRARY_SEARCH_PATHS[arch=arm64]" = "$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
 				"LIBRARY_SEARCH_PATHS[arch=x86_64]" = "$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
-				MARKETING_VERSION = 0.2.4;
+				MARKETING_VERSION = 0.2.5;
 				PRODUCT_BUNDLE_IDENTIFIER = de.kanbangit.ios;
 				PRODUCT_MODULE_NAME = KanbanGitNative;
 				PRODUCT_NAME = KanbanGit;
@@ -618,7 +618,7 @@
 				CODE_SIGN_ENTITLEMENTS = "kanbangit-native_iOS/kanbangit-native_iOS.entitlements";
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Manual;
-				CURRENT_PROJECT_VERSION = 4;
+				CURRENT_PROJECT_VERSION = 5;
 				DEVELOPMENT_TEAM = ZZX2KZGTHU;
 				ENABLE_BITCODE = NO;
 				ENABLE_USER_SCRIPT_SANDBOXING = NO;
@@ -634,7 +634,7 @@
 				);
 				"LIBRARY_SEARCH_PATHS[arch=arm64]" = "$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
 				"LIBRARY_SEARCH_PATHS[arch=x86_64]" = "$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
-				MARKETING_VERSION = 0.2.4;
+				MARKETING_VERSION = 0.2.5;
 				PRODUCT_BUNDLE_IDENTIFIER = de.kanbangit.ios;
 				PRODUCT_MODULE_NAME = KanbanGitNative;
 				PRODUCT_NAME = KanbanGit;

native/src-tauri/gen/apple/project.yml

@@ -18,8 +18,8 @@ settingGroups:
       DEVELOPMENT_TEAM: ZZX2KZGTHU
       ENABLE_USER_SCRIPT_SANDBOXING: false
       PRODUCT_BUNDLE_IDENTIFIER: de.kanbangit.ios
-      MARKETING_VERSION: "0.2.4"
-      CURRENT_PROJECT_VERSION: "4"
+      MARKETING_VERSION: "0.2.5"
+      CURRENT_PROJECT_VERSION: "5"
     configs:
       debug:
         CODE_SIGN_IDENTITY: Apple Development