Exclude iOS 14-specific code from compilation on Xcode 11 to allow building for TestFlight

Tusker.xcodeproj/project.pbxproj

@@ -2184,6 +2184,7 @@
 				);
 				MARKETING_VERSION = 2020.1;
 				OTHER_LDFLAGS = "";
+				"OTHER_SWIFT_FLAGS[sdk=iphone*14*]" = "$(inherited) -D SDK_IOS_14";
 				PRODUCT_BUNDLE_IDENTIFIER = space.vaccor.Tusker;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -2211,6 +2212,7 @@
 					"@executable_path/Frameworks",
 				);
 				MARKETING_VERSION = 2020.1;
+				"OTHER_SWIFT_FLAGS[sdk=iphone*14*]" = "$(inherited) -D SDK_IOS_14";
 				PRODUCT_BUNDLE_IDENTIFIER = space.vaccor.Tusker;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";

Tusker/SceneDelegate.swift

@@ -158,11 +158,15 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
         mastodonController.getOwnInstance()
         
         let rootController: UIViewController
+        #if SDK_IOS_14
         if #available(iOS 14.0, *) {
             rootController = MainSplitViewController(mastodonController: mastodonController)
         } else {
             rootController = MainTabBarViewController(mastodonController: mastodonController)
         }
+        #else
+        rootController = MainTabBarViewController(mastodonController: mastodonController)
+        #endif
         window!.rootViewController = rootController
     }
     

Tusker/Screens/Compose/ComposeDrawingViewController.swift

@@ -58,11 +58,15 @@ class ComposeDrawingViewController: UIViewController {
             canvasView.drawing = initialDrawing
         }
         canvasView.delegate = self
+        #if SDK_IOS_14
         if #available(iOS 14.0, *) {
             canvasView.drawingPolicy = .anyInput
         } else {
             canvasView.allowsFingerDrawing = true
         }
+        #else
+        canvasView.allowsFingerDrawing = true
+        #endif
         canvasView.minimumZoomScale = 0.5
         canvasView.maximumZoomScale = 2
         canvasView.backgroundColor = .systemBackground

Tusker/Screens/Main/MainSidebarViewController.swift

@@ -9,6 +9,7 @@
 import UIKit
 import Pachyderm
 
+#if SDK_IOS_14
 @available(iOS 14.0, *)
 protocol MainSidebarViewControllerDelegate: class {
     func sidebarRequestPresentCompose(_ sidebarViewController: MainSidebarViewController)
@@ -379,3 +380,4 @@ extension MainSidebarViewController: InstanceTimelineViewControllerDelegate {
         dismiss(animated: true)
     }
 }
+#endif

Tusker/Screens/Main/MainSplitViewController.swift

@@ -8,6 +8,7 @@
 
 import UIKit
 
+#if SDK_IOS_14
 @available(iOS 14.0, *)
 class MainSplitViewController: UISplitViewController {
 
@@ -319,3 +320,4 @@ extension MainSplitViewController: TuskerRootViewController {
         }
     }
 }
+#endif

Tusker/Screens/Utilities/Previewing.swift

@@ -44,6 +44,7 @@ extension MenuPreviewProvider {
         ]
         
         // todo: handle pre-iOS 14
+        #if SDK_IOS_14
         if accountID != mastodonController.account.id,
            #available(iOS 14.0, *) {
             actionsSection.append(UIDeferredMenuElement({ (elementHandler) in
@@ -69,6 +70,7 @@ extension MenuPreviewProvider {
                 }
             }))
         }
+        #endif
         
         let shareSection = [
             openInSafariAction(url: account.url),

Tusker/Views/Profile Header/ProfileHeaderView.swift

@@ -82,10 +82,12 @@ class ProfileHeaderView: UIView {
         if #available(iOS 13.4, *) {
             moreButton.addInteraction(UIPointerInteraction(delegate: self))
         }
+        #if SDK_IOS_14
         if #available(iOS 14.0, *) {
             moreButton.showsMenuAsPrimaryAction = true
             moreButton.isContextMenuInteractionEnabled = true
         }
+        #endif
     }
     
     func updateUI(for accountID: String) {

Tusker/Views/Status/BaseStatusTableViewCell.swift

@@ -87,9 +87,11 @@ class BaseStatusTableViewCell: UITableViewCell {
         accessibilityElements = [displayNameLabel!, contentWarningLabel!, collapseButton!, contentTextView!, attachmentsView!]
         attachmentsView.isAccessibilityElement = true
         
+        #if SDK_IOS_14
         if #available(iOS 14.0, *) {
             moreButton.showsMenuAsPrimaryAction = true
         }
+        #endif
         
         NotificationCenter.default.addObserver(self, selector: #selector(preferencesChanged), name: .preferencesChanged, object: nil)
     }
@@ -199,10 +201,12 @@ class BaseStatusTableViewCell: UITableViewCell {
             reblogButton.accessibilityLabel = NSLocalizedString("Reblog", comment: "reblog button accessibility label")
         }
         
+        #if SDK_IOS_14
         if #available(iOS 14.0, *) {
             // keep menu in sync with changed states e.g. bookmarked, muted
             moreButton.menu = UIMenu(title: "", image: nil, identifier: nil, options: [], children: actionsForStatus(statusID: statusID, sourceView: moreButton))
         }
+        #endif
     }
     
     func updateUI(account: AccountMO) {

Tusker/Views/VisualEffectImageButton.swift

@@ -52,7 +52,9 @@ class VisualEffectImageButton: UIControl {
             imageView.bottomAnchor.constraint(equalTo: vibrancyView.bottomAnchor, constant: -2),
         ])
         
+        #if SDK_IOS_14
         addInteraction(UIContextMenuInteraction(delegate: self))
+        #endif
         
         addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(onTap)))
     }
@@ -61,10 +63,12 @@ class VisualEffectImageButton: UIControl {
         sendActions(for: .touchUpInside)
     }
 
+    #if SDK_IOS_14
     override func contextMenuInteraction(_ interaction: UIContextMenuInteraction, configurationForMenuAtLocation location: CGPoint) -> UIContextMenuConfiguration? {
         guard let menu = menu else { return nil }
         return UIContextMenuConfiguration(identifier: nil, previewProvider: nil) { (_) -> UIMenu? in
             return menu
         }
     }
+    #endif
 }