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use KeyEventPostProcessor instead of AWTEventListener for listening for Alt key pressed (similar to WindowLookAndFeel) (#4)

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This commit is contained in:
Karl Tauber
2019-10-16 19:42:55 +02:00
parent 250f435ceb
commit 2dbd584e28
1 changed files with 6 additions and 6 deletions
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12
flatlaf-core/src/main/java/com/formdev/flatlaf/FlatLaf.java
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@@ -16,7 +16,6 @@
package com.formdev.flatlaf;
import java.awt.AWTEvent;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
@@ -24,10 +23,10 @@ import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.Insets;
import java.awt.KeyEventPostProcessor;
import java.awt.KeyboardFocusManager;
import java.awt.Toolkit;
import java.awt.Window;
import java.awt.event.AWTEventListener;
import java.awt.event.KeyEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
@@ -78,7 +77,7 @@ public abstract class FlatLaf
private String desktopPropertyName;
private PropertyChangeListener desktopPropertyListener;
private AWTEventListener mnemonicListener;
private KeyEventPostProcessor mnemonicListener;
private static boolean altKeyPressed;
public static boolean install( LookAndFeel newLookAndFeel ) {
@@ -114,10 +113,11 @@ public abstract class FlatLaf
// add mnemonic listener
mnemonicListener = e -> {
if( e instanceof KeyEvent && ((KeyEvent)e).getKeyCode() == KeyEvent.VK_ALT )
if( e.getKeyCode() == KeyEvent.VK_ALT )
altKeyChanged( e.getID() == KeyEvent.KEY_PRESSED );
return false;
};
Toolkit.getDefaultToolkit().addAWTEventListener( mnemonicListener, AWTEvent.KEY_EVENT_MASK );
KeyboardFocusManager.getCurrentKeyboardFocusManager().addKeyEventPostProcessor( mnemonicListener );
// listen to desktop property changes to update UI if system font or scaling changes
if( SystemInfo.IS_WINDOWS ) {
@@ -149,7 +149,7 @@ public abstract class FlatLaf
// remove mnemonic listener
if( mnemonicListener != null ) {
Toolkit.getDefaultToolkit().removeAWTEventListener( mnemonicListener );
KeyboardFocusManager.getCurrentKeyboardFocusManager().removeKeyEventPostProcessor( mnemonicListener );
mnemonicListener = null;
}