jan-leila/Slipstream-Mod-Manager
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Fixed an NPE when the glasspane gets keystrokes from esoteric sources

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Vhati 2014-04-19 22:51:42 -04:00
parent 75edd266e2
commit 41a2e88d66
1 changed files with 8 additions and 1 deletions
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9
src/main/java/net/vhati/modmanager/ui/InertPanel.java
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@ -4,6 +4,7 @@ import java.awt.Component;
import java.awt.Cursor; import java.awt.Cursor;
import java.awt.KeyEventDispatcher; import java.awt.KeyEventDispatcher;
import java.awt.KeyboardFocusManager; import java.awt.KeyboardFocusManager;
import java.awt.Window;
import java.awt.event.KeyAdapter; import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent; import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter; import java.awt.event.MouseAdapter;
@ -27,7 +28,13 @@ public class InertPanel extends JPanel {
nullDispatcher = new KeyEventDispatcher() { nullDispatcher = new KeyEventDispatcher() {
@Override @Override
public boolean dispatchKeyEvent( KeyEvent e ) { public boolean dispatchKeyEvent( KeyEvent e ) {
return InertPanel.this == ( (JFrame)SwingUtilities.getWindowAncestor( (Component)e.getSource() ) ).getGlassPane(); Object source = e.getSource();
if ( source instanceof Component == false ) return false;
Window ancestor = SwingUtilities.getWindowAncestor( (Component)source );
if ( ancestor instanceof JFrame == false ) return false;
return ( InertPanel.this == ((JFrame)ancestor).getGlassPane() );
} }
}; };