fix: plus button fixes

iOSClient/Files/NCFiles.swift

@@ -34,7 +34,7 @@ class NCFiles: NCCollectionViewCommon {
                    let account = userInfo["account"] as? String,
                    self.controller?.account == account {
                     // re-tint the + button
-                    self.mainNavigationController?.menuPlusButton.setPlusButtonColor(NCBrandColor.shared.getElement(account: account))
+                    self.mainNavigationController?.menuPlus?.updatePlusButtonEnabled(session: NCSession.shared.getSession(account: account))
                 }
             }
         }
@@ -64,7 +64,7 @@ class NCFiles: NCCollectionViewCommon {
                     if let userInfo = notification.userInfo,
                        let account = userInfo["account"] as? String {
                         // re-tint the + button for the new account
-                        self.mainNavigationController?.menuPlusButton.setPlusButtonColor(NCBrandColor.shared.getElement(account: account))
+                        self.mainNavigationController?.menuPlus?.updatePlusButtonEnabled(session: NCSession.shared.getSession(account: account))
                     }
 
                     self.navigationController?.popToRootViewController(animated: false)
@@ -139,13 +139,8 @@ class NCFiles: NCCollectionViewCommon {
         if let metadataFolder {
             nkLog(info: "Inside metadata folder \(metadataFolder.fileName) with permissions: \(metadataFolder.permissions)")
 
-            // disable + button if no create permission
-            let color = NCBrandColor.shared.getElement(account: self.session.account)
-
-            if let menuPlusButton = self.mainNavigationController?.menuPlusButton {
-                menuPlusButton.isEnabled = metadataFolder.isCreatable
-                menuPlusButton.setPlusButtonColor(metadataFolder.isCreatable ? color : .lightGray)
-            }
+            // disable + button if no create permission or E2EE offline
+            self.mainNavigationController?.menuPlus?.updatePlusButtonEnabled(session: self.session)
         }
 
         let metadatas = await self.database.getMetadatasAsyncDataSource(withServerUrl: self.serverUrl,

iOSClient/Main/Collection Common/NCCollectionViewCommon+CollectionViewDataSource.swift

@@ -20,9 +20,9 @@ extension NCCollectionViewCommon: UICollectionViewDataSource {
         self.layoutForView = self.database.getLayoutForView(account: session.account, key: layoutKey, serverUrl: serverUrl)
         // is a Directory E2EE
         if isSearchingMode {
-            self.isDirectoryE2EE = false
+            self.isCurrentDirectoryE2EE = false
         } else {
-            self.isDirectoryE2EE = NCUtilityFileSystem().isDirectoryE2EE(serverUrl: serverUrl, urlBase: session.urlBase, userId: session.userId, account: session.account)
+            self.isCurrentDirectoryE2EE = NCUtilityFileSystem().isDirectoryE2EE(serverUrl: serverUrl, urlBase: session.urlBase, userId: session.userId, account: session.account)
         }
         return self.dataSource.numberOfItemsInSection(section)
     }
@@ -119,7 +119,7 @@ extension NCCollectionViewCommon: UICollectionViewDataSource {
         let metadata = self.dataSource.getMetadata(indexPath: indexPath) ?? tableMetadata()
 
         // E2EE create preview
-        if self.isDirectoryE2EE,
+        if self.isCurrentDirectoryE2EE,
            metadata.isImageOrVideo,
            !utilityFileSystem.fileProviderStorageImageExists(metadata.ocId, etag: metadata.etag, userId: metadata.userId, urlBase: metadata.urlBase) {
             utility.createImageFileFrom(metadata: metadata)

iOSClient/Main/Collection Common/NCCollectionViewCommon.swift

@@ -31,7 +31,8 @@ class NCCollectionViewCommon: UIViewController, NCAccountSettingsModelDelegate,
     internal var backgroundImageView = UIImageView()
     internal var serverUrl: String = ""
     internal var isEditMode = false
-    internal var isDirectoryE2EE = false
+    // whether the displayed folder is E2EE; refreshed on each collection view data-source pass
+    internal var isCurrentDirectoryE2EE = false
     internal var fileSelect: [String] = []
     internal var metadataFolder: tableMetadata?
     internal var richWorkspaceText: String?

iOSClient/Main/NCMainNavigationController.swift

@@ -12,7 +12,7 @@ class NCMainNavigationController: UINavigationController, UINavigationController
     let utility = NCUtility()
     let utilityFileSystem = NCUtilityFileSystem()
     let appDelegate = (UIApplication.shared.delegate as? AppDelegate)!
-    let menuPlusButton = UIButton(type: .system)
+    let menuPlusButton: UIButton = NCMenuPlusButton(type: .system)
 
     var controller: NCMainTabBarController? {
         self.tabBarController as? NCMainTabBarController
@@ -451,6 +451,27 @@ class NCMainNavigationController: UINavigationController, UINavigationController
     }
 }
 
+private final class NCMenuPlusButton: UIButton {
+    // Keep hit testing so taps don't fall through if the button is disabled, hidden or low alpha.
+    override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
+        if let view = super.hitTest(point, with: event) {
+            return view
+        }
+
+        guard !isEnabled, !isHidden, alpha >= 0.01, bounds.contains(point) else {
+            return nil
+        }
+
+        return self
+    }
+
+    override func contextMenuInteraction(_ interaction: UIContextMenuInteraction, configurationForMenuAtLocation location: CGPoint) -> UIContextMenuConfiguration? {
+        guard isEnabled else { return nil }
+
+        return super.contextMenuInteraction(interaction, configurationForMenuAtLocation: location)
+    }
+}
+
 extension UIButton {
     func setPlusButtonColor(_ color: UIColor) {
         if #available(iOS 26.0, *) {

iOSClient/Menu/NCContextMenuPlus.swift

@@ -427,18 +427,43 @@ class NCContextMenuPlus: NSObject {
         let plusMenu = UIMenu(children: plusMenuElements)
 
         // PLUS BUTTON
+        updatePlusButtonEnabled(session: session)
+
         if menuPlusButton.menu != nil,
            !capabilitiesChanged {
             return
         }
 
         menuPlusButton.menu = plusMenu
         menuPlusButton.showsMenuAsPrimaryAction = true
-        menuPlusButton.setPlusButtonColor(NCBrandColor.shared.getElement(account: session.account))
         menuPlusButton.alpha = 1
+    }
+
+    func updatePlusButtonEnabled(session: NCSession.Session) {
+        guard let controller, let menuPlusButton else {
+            return
+        }
+
+        let isEnabled = isPlusButtonEnabled(for: controller)
+
+        menuPlusButton.isEnabled = isEnabled
+        menuPlusButton.setPlusButtonColor(isEnabled ? NCBrandColor.shared.getElement(account: session.account) : .lightGray)
+    }
+
+    private func isPlusButtonEnabled(for controller: NCMainTabBarController) -> Bool {
+        guard let metadataFolder = (controller.currentViewController() as? NCCollectionViewCommon)?.metadataFolder else {
+            return true
+        }
+
+        guard metadataFolder.isCreatable else {
+            return false
+        }
+
+        guard metadataFolder.e2eEncrypted else {
+            return true
+        }
 
-        // E2EE Offline disable
-        menuPlusButton.isEnabled = isNetworkReachable || !isDirectoryE2EE
+        return NextcloudKit.shared.isNetworkReachable()
     }
 
     @MainActor