fix: restore remote keyboard control in Slint client, refs #91

src/gui/platform/window_drag.h

@@ -16,6 +16,10 @@ bool HideDisabledMainWindowZoomButton();
 // fullscreen action with an immediate, single-window fullscreen transition.
 bool ConfigureStreamWindowLiveResize();
 
+// Returns whether the configured stream window is currently the active AppKit
+// key window.
+bool IsStreamWindowActive();
+
 // Enters or leaves the stream window's animation-free fullscreen mode.
 bool SetStreamWindowFullscreen(bool fullscreen);
 bool IsStreamWindowFullscreen();

src/gui/platform/window_drag_mac.mm

@@ -146,6 +146,13 @@ bool ConfigureStreamWindowLiveResize() {
   }
 }
 
+bool IsStreamWindowActive() {
+  @autoreleasepool {
+    return stream_window != nil && [NSApp isActive] &&
+           [stream_window isKeyWindow];
+  }
+}
+
 bool SetStreamWindowFullscreen(bool fullscreen) {
   @autoreleasepool {
     if (stream_window == nil || stream_fullscreen == fullscreen) {