macOS: Handle dropping of file promises into kitty in addition to file paths

Fixes #9084

docs/changelog.rst

@@ -164,6 +164,8 @@ Detailed list of changes
 
 - Fix a regression in 0.43.0 that caused high CPU usage when :opt:`disable_ligatures` was set to ``cursor`` and the tab bar was visible (:iss:`9071`)
 
+- macOS: Handle dropping of file promises into kitty in addition to file paths (:pull:`9084`)
+
 0.43.1 [2025-10-01]
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

glfw/cocoa_window.m

@@ -789,8 +789,19 @@ static const NSRange kEmptyRange = { NSNotFound, 0 };
         self.identifier = @"kitty-content-view";
 
         [self updateTrackingAreas];
+        // Register for file promises in addition to regular files (macOS 10.12+)
+        if (@available(macOS 10.12, *)) {
+            NSMutableArray *types = [NSMutableArray arrayWithObjects:
+                NSPasteboardTypeFileURL,
+                NSPasteboardTypeString,
+                nil];
+            // Add file promise types
+            [types addObjectsFromArray:[NSFilePromiseReceiver readableDraggedTypes]];
+            [self registerForDraggedTypes:types];
+        } else {
             [self registerForDraggedTypes:@[NSPasteboardTypeFileURL, NSPasteboardTypeString]];
         }
+    }
 
     return self;
 }