[V3] Add universal link support for macOS

v3/UNRELEASED_CHANGELOG.md

@@ -17,6 +17,7 @@ After processing, the content will be moved to the main changelog and this file
 
 ## Added
 <!-- New features, capabilities, or enhancements -->
+Add universal link support for macOS by @APshenkin in [PR](https://github.com/wailsapp/wails/pull/4712)
 
 ## Changed
 <!-- Changes in existing functionality -->

v3/pkg/application/application_darwin.go

@@ -454,8 +454,8 @@ func HandleOpenFile(filePath *C.char) {
 	}
 }
 
-//export HandleCustomProtocol
-func HandleCustomProtocol(urlCString *C.char) {
+//export HandleOpenURL
+func HandleOpenURL(urlCString *C.char) {
 	urlString := C.GoString(urlCString)
 	eventContext := newApplicationEventContext()
 	eventContext.setURL(urlString)

v3/pkg/application/application_darwin_delegate.h

@@ -13,8 +13,8 @@
 
 extern void HandleOpenFile(char *);
 
-// Declarations for Apple Event based custom URL handling
-extern void HandleCustomProtocol(char*);
+// Declarations for Apple Event based custom URL handling and universal link
+extern void HandleOpenURL(char*);
 
 @interface CustomProtocolSchemeHandler : NSObject
 + (void)handleGetURLEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent;

v3/pkg/application/application_darwin_delegate.m

@@ -17,6 +17,16 @@ -(BOOL)application:(NSApplication *)sender openFile:(NSString *)filename
     HandleOpenFile((char*)utf8FileName);
     return YES;
  }
+- (BOOL)application:(NSApplication *)application continueUserActivity:(NSUserActivity *)userActivity restorationHandler:(void (^)(NSArray<id<NSUserActivityRestoring>> * _Nullable))restorationHandler {
+    if ([userActivity.activityType isEqualToString:NSUserActivityTypeBrowsingWeb]) {
+        NSURL *url = userActivity.webpageURL;
+        if (url) {
+            HandleOpenURL((char*)[[url absoluteString] UTF8String]);
+            return YES;
+        }
+    }
+    return NO;
+}
 // Create the applicationShouldTerminateAfterLastWindowClosed: method
 - (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)theApplication
 {
@@ -46,7 +56,7 @@ - (BOOL)applicationShouldHandleReopen:(NSNotification *)notification
     if( hasListeners(EventApplicationShouldHandleReopen) ) {
         processApplicationEvent(EventApplicationShouldHandleReopen, @{@"hasVisibleWindows": @(flag)});
     }
-    
+
     return TRUE;
 }
 - (void)handleSecondInstanceNotification:(NSNotification *)note;
@@ -185,7 +195,7 @@ @implementation CustomProtocolSchemeHandler
 + (void)handleGetURLEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent {
    NSString *urlStr = [[event paramDescriptorForKeyword:keyDirectObject] stringValue];
    if (urlStr) {
-       HandleCustomProtocol((char*)[urlStr UTF8String]);
+       HandleOpenURL((char*)[urlStr UTF8String]);
    }
 }
 @end