8205479: OS X: requestFocus() does not work properly for embedded frame

Reviewed-by: serb, aivanov

src/macosx/classes/sun/lwawt/macosx/CEmbeddedFrame.java

@@ -159,8 +159,6 @@ public class CEmbeddedFrame extends EmbeddedFrame {
                         : this;
             }
         }
-        // ignore focus "lost" native request as it may mistakenly
-        // deactivate active window (see 8001161)
         if (globalFocusedWindow == this) {
             responder.handleWindowFocusEvent(parentWindowActive, null);
         }
@@ -175,4 +173,18 @@ public class CEmbeddedFrame extends EmbeddedFrame {
         // another window.
         return globalFocusedWindow != null ? !globalFocusedWindow.isParentWindowActive() : true;
     }
+
+    public void synthesizeWindowActivation(boolean doActivate) {
+        if (isParentWindowActive() != doActivate) {
+            handleWindowFocusEvent(doActivate);
+        }
+    }
+
+    public static void updateGlobalFocusedWindow(CEmbeddedFrame newGlobalFocusedWindow) {
+        synchronized (classLock) {
+            if (newGlobalFocusedWindow.isParentWindowActive()) {
+                globalFocusedWindow = newGlobalFocusedWindow;
+            }
+        }
+    }
 }

src/macosx/classes/sun/lwawt/macosx/CPlatformEmbeddedFrame.java

@@ -146,6 +146,8 @@ public class CPlatformEmbeddedFrame implements PlatformWindow {
 
     @Override
     public boolean requestWindowFocus() {
+        CEmbeddedFrame.updateGlobalFocusedWindow(target);
+        target.synthesizeWindowActivation(true);
         return true;
     }