From 499f4acd19eae46ff9445595da5012bef494a90e Mon Sep 17 00:00:00 2001
From: Tienson Qin <tiensonqin@gmail.com>
Date: Sun, 16 Nov 2025 23:06:57 +0800
Subject: [PATCH] slide-out animation for left sidebar

---
 ios/App/App/AppDelegate.swift      | 27 +++++++++++++++++++++++++++
 src/main/mobile/components/app.css | 16 ----------------
 2 files changed, 27 insertions(+), 16 deletions(-)

diff --git a/ios/App/App/AppDelegate.swift b/ios/App/App/AppDelegate.swift
index b624c14c95..1637da97f3 100644
--- a/ios/App/App/AppDelegate.swift
+++ b/ios/App/App/AppDelegate.swift
@@ -9,6 +9,12 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UINavigationControllerDel
     private var navController: UINavigationController?
     private var pathStack: [String] = ["/"]
     private var ignoreRoutePopCount = 0
+    private lazy var sidebarCloseGesture: UISwipeGestureRecognizer = {
+        let gesture = UISwipeGestureRecognizer(target: self, action: #selector(handleSidebarCloseSwipe(_:)))
+        gesture.direction = .left // right-to-left swipe to close
+        gesture.cancelsTouchesInView = false
+        return gesture
+    }()
 
     func application(_ application: UIApplication,
                      didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
@@ -183,6 +189,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UINavigationControllerDel
     func navigationController(_ navigationController: UINavigationController, didShow viewController: UIViewController, animated: Bool) {
         guard let current = viewController as? NativePageViewController else { return }
         SharedWebViewController.instance.attach(to: current)
+        updateSidebarGestureAttachment(for: current)
     }
 
     func navigationController(_ navigationController: UINavigationController,
@@ -198,6 +205,26 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UINavigationControllerDel
         return pageVC.targetPath == "/left-sidebar"
     }
 
+    private func updateSidebarGestureAttachment(for vc: NativePageViewController) {
+        guard let nav = navController else { return }
+        if isLeftSidebar(vc) {
+            if sidebarCloseGesture.view !== nav.view {
+                nav.view.addGestureRecognizer(sidebarCloseGesture)
+            }
+        } else if sidebarCloseGesture.view != nil {
+            nav.view.removeGestureRecognizer(sidebarCloseGesture)
+        }
+    }
+
+    @objc private func handleSidebarCloseSwipe(_ gesture: UISwipeGestureRecognizer) {
+        guard gesture.state == .ended else { return }
+        guard let nav = navController,
+              let top = nav.topViewController as? NativePageViewController,
+              isLeftSidebar(top) else { return }
+        // Let navigation delegate handle stack bookkeeping and JS back sync.
+        nav.popViewController(animated: true)
+    }
+
     private func observeRouteChanges() {
         NotificationCenter.default.addObserver(
             forName: UILocalPlugin.routeChangeNotification,
diff --git a/src/main/mobile/components/app.css b/src/main/mobile/components/app.css
index 83bf184efd..e13ab09da9 100644
--- a/src/main/mobile/components/app.css
+++ b/src/main/mobile/components/app.css
@@ -472,17 +472,6 @@ html[data-silk-native-page-scroll-replaced=false] .app-silk-index-scroll-view {
   }
 }
 
-.app-silk-sidebar-sheet-content {
-  @apply bg-white dark:bg-gray-02 flex flex-col items-center p-2;
-  box-sizing: border-box;
-  height: 100%;
-  max-width: 800px;
-
-  /* APPEARANCE */
-  border-radius: 0;
-  overflow: hidden;
-}
-
 .app-audio-recorder {
   @apply flex flex-col p-4 gap-4;
 
@@ -540,11 +529,6 @@ html[data-silk-native-page-scroll-replaced=false] .app-silk-index-scroll-view {
   }
 }
 
-.Sidebar-hidden {
-  @apply bg-transparent dark:bg-transparent;
-  box-shadow: none;
-}
-
 #app-main-content {
   padding-bottom: 200px;
 }