From d8809e334fb8095c4ba5520b0151e02bb0527b59 Mon Sep 17 00:00:00 2001
From: "Brian P. Hinz" <bphinz@users.sf.net>
Date: Wed, 15 Nov 2017 18:50:15 -0500
Subject: [PATCH] Override default window manager key bindings better

---
 java/com/tigervnc/vncviewer/Viewport.java | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/java/com/tigervnc/vncviewer/Viewport.java b/java/com/tigervnc/vncviewer/Viewport.java
index a588f0f4..6fff9b4f 100644
--- a/java/com/tigervnc/vncviewer/Viewport.java
+++ b/java/com/tigervnc/vncviewer/Viewport.java
@@ -102,16 +102,15 @@ class Viewport extends JPanel implements ActionListener {
         releaseDownKeys();
       }
     });
-    Action action = new AbstractAction() {
+    // Override default key bindings from L&F
+    getActionMap().put("null", new AbstractAction() {
       public void actionPerformed(ActionEvent e) { }
-    };
-    KeyStroke f10 = KeyStroke.getKeyStroke(KeyEvent.VK_F10, 0);
-    getInputMap(JComponent.WHEN_FOCUSED).put(f10, "requestFocus");
-    getActionMap().put("requestFocus", new AbstractAction() {
-      public void actionPerformed(ActionEvent e) {
-        requestFocusInWindow();
-      }
     });
+    ArrayList<KeyStroke> keys = new ArrayList<KeyStroke>();
+    keys.add(KeyStroke.getKeyStroke(KeyEvent.VK_F10, 0, true));
+    keys.add(KeyStroke.getKeyStroke(KeyEvent.VK_ALT, 0, true));
+    for (int i=0; i<keys.size(); i++)
+      getInputMap(JComponent.WHEN_FOCUSED).put(keys.get(i), "null");
 
     setFocusTraversalKeysEnabled(false);
     setFocusable(true);
-- 
2.39.5