Fix compile errors on Xcode 12.4 and bellow

ionic-team · Apr 8, 2022 · b4fcf84 · b4fcf84
1 parent 4dd0be4
commit b4fcf84
Showing 1 changed file with 30 additions and 12 deletions.
diff --git a/ios/Capacitor/Capacitor/WebViewDelegationHandler.swift b/ios/Capacitor/Capacitor/WebViewDelegationHandler.swift
@@ -2,6 +2,11 @@ import Foundation
 import WebKit
 import MobileCoreServices
 
+// TODO: remove once Xcode 12 support is dropped
+#if compiler(<5.5)
+    protocol WKDownloadDelegate {}
+#endif
+
 // adopting a public protocol in an internal class is by design
 // swiftlint:disable lower_acl_than_parent
 @objc(CAPWebViewDelegationHandler)
@@ -82,13 +87,16 @@ internal class WebViewDelegationHandler: NSObject, WKNavigationDelegate, WKUIDel
         // post a notification for any listeners
         NotificationCenter.default.post(name: .capacitorDecidePolicyForNavigationAction, object: navigationAction)
 
-        // check if we can detect file download on iOS >= 14.5
-        if #available(iOS 14.5, *) {
-            if navigationAction.shouldPerformDownload {
-                decisionHandler(.download)
-                return
+        // TODO: remove once Xcode 12 support is dropped
+        #if compiler(>=5.5)
+            // check if we can detect file download on iOS >= 14.5
+            if #available(iOS 14.5, *) {
+                if navigationAction.shouldPerformDownload {
+                    decisionHandler(.download)
+                    return
+                }
             }
-        }
+        #endif
 
         // sanity check, these shouldn't ever be nil in practice
         guard let bridge = bridge, let navURL = navigationAction.request.url else {
@@ -172,11 +180,14 @@ internal class WebViewDelegationHandler: NSObject, WKNavigationDelegate, WKUIDel
                 return
             }
         }
-        // Download support for iOS >= 14.5
-        if #available(iOS 14.5, *) {
-            decisionHandler(.download)
-            return
-        }
+        // TODO: remove once Xcode 12 support is dropped
+        #if compiler(>=5.5)
+            // Download support for iOS >= 14.5
+            if #available(iOS 14.5, *) {
+                decisionHandler(.download)
+                return
+            }
+        #endif
         // Deny if not recognize until now and webView can not
         // show the specified MIME type
         decisionHandler(.cancel)
@@ -186,6 +197,9 @@ internal class WebViewDelegationHandler: NSObject, WKNavigationDelegate, WKUIDel
         webView.reload()
     }
 
+    // TODO: remove once Xcode 12 support is dropped
+    #if compiler(>=5.5)
+
     @available(iOS 14.5, *)
     func webView(_ webView: WKWebView, navigationAction: WKNavigationAction, didBecome download: WKDownload) {
         CAPLog.print("⚡️  Initiating background download..")
@@ -196,6 +210,8 @@ internal class WebViewDelegationHandler: NSObject, WKNavigationDelegate, WKUIDel
         CAPLog.print("⚡️  Initiating background download..")
         download.delegate = self
     }
+
+    #endif
 
     // MARK: - WKScriptMessageHandler
 
@@ -312,7 +328,8 @@ internal class WebViewDelegationHandler: NSObject, WKNavigationDelegate, WKUIDel
     }
 
     // MARK: - WKDownloadDelegate
-
+    // TODO: remove once Xcode 12 support is dropped
+    #if compiler(>=5.5)
     @available(iOS 14.5, *)
     public func download(_ download: WKDownload, decideDestinationUsing response: URLResponse, suggestedFilename: String, completionHandler: @escaping (URL?) -> Void) {
         // Add pending download
@@ -345,6 +362,7 @@ internal class WebViewDelegationHandler: NSObject, WKNavigationDelegate, WKUIDel
             "status": FileDownloadNotificationStatus.failed
         ])
     }
+    #endif
 
     // MARK: - UIDocumentPickerDelegate