TextComponents:

- use focusedBackground only if editable (and enabled)
- prefer explicit set background color over focusedBackground
- added FlatTextFieldUI.getBackground() used by all text components
- support EditorPane.focusedBackground
- support TextPane.focusedBackground

(issue #335)

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatEditorPaneUI.java

@@ -17,15 +17,16 @@
 package com.formdev.flatlaf.ui;
 
 import static com.formdev.flatlaf.util.UIScale.scale;
+import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
+import java.awt.event.FocusListener;
 import java.beans.PropertyChangeEvent;
 import javax.swing.JComponent;
 import javax.swing.JEditorPane;
 import javax.swing.UIManager;
 import javax.swing.plaf.ComponentUI;
-import javax.swing.plaf.UIResource;
 import javax.swing.plaf.basic.BasicEditorPaneUI;
 import javax.swing.text.JTextComponent;
 import com.formdev.flatlaf.FlatClientProperties;
@@ -53,6 +54,7 @@ import com.formdev.flatlaf.util.HiDPIUtils;
  *
  * @uiDefault Component.minimumWidth			int
  * @uiDefault Component.isIntelliJTheme			boolean
+ * @uiDefault EditorPane.focusedBackground		Color	optional
  *
  * @author Karl Tauber
  */
@@ -61,8 +63,10 @@ public class FlatEditorPaneUI
 {
 	protected int minimumWidth;
 	protected boolean isIntelliJTheme;
+	protected Color focusedBackground;
 
 	private Object oldHonorDisplayProperties;
+	private FocusListener focusListener;
 
 	public static ComponentUI createUI( JComponent c ) {
 		return new FlatEditorPaneUI();
@@ -72,8 +76,10 @@ public class FlatEditorPaneUI
 	protected void installDefaults() {
 		super.installDefaults();
 
+		String prefix = getPropertyPrefix();
 		minimumWidth = UIManager.getInt( "Component.minimumWidth" );
 		isIntelliJTheme = UIManager.getBoolean( "Component.isIntelliJTheme" );
+		focusedBackground = UIManager.getColor( prefix + ".focusedBackground" );
 
 		// use component font and foreground for HTML text
 		oldHonorDisplayProperties = getComponent().getClientProperty( JEditorPane.HONOR_DISPLAY_PROPERTIES );
@@ -84,9 +90,28 @@ public class FlatEditorPaneUI
 	protected void uninstallDefaults() {
 		super.uninstallDefaults();
 
+		focusedBackground = null;
+
 		getComponent().putClientProperty( JEditorPane.HONOR_DISPLAY_PROPERTIES, oldHonorDisplayProperties );
 	}
 
+	@Override
+	protected void installListeners() {
+		super.installListeners();
+
+		// necessary to update focus background
+		focusListener = new FlatUIUtils.RepaintFocusListener( getComponent(), c -> focusedBackground != null );
+		getComponent().addFocusListener( focusListener );
+	}
+
+	@Override
+	protected void uninstallListeners() {
+		super.uninstallListeners();
+
+		getComponent().removeFocusListener( focusListener );
+		focusListener = null;
+	}
+
 	@Override
 	protected void propertyChange( PropertyChangeEvent e ) {
 		super.propertyChange( e );
@@ -128,14 +153,11 @@ public class FlatEditorPaneUI
 
 	@Override
 	protected void paintBackground( Graphics g ) {
-		JTextComponent c = getComponent();
-
-		// for compatibility with IntelliJ themes
-		if( isIntelliJTheme && (!c.isEnabled() || !c.isEditable()) && (c.getBackground() instanceof UIResource) ) {
-			FlatUIUtils.paintParentBackground( g, c );
-			return;
+		paintBackground( g, getComponent(), isIntelliJTheme, focusedBackground );
 	}
 
-		super.paintBackground( g );
+	static void paintBackground( Graphics g, JTextComponent c, boolean isIntelliJTheme, Color focusedBackground ) {
+		g.setColor( FlatTextFieldUI.getBackground( c, isIntelliJTheme, focusedBackground ) );
+		g.fillRect( 0, 0, c.getWidth(), c.getHeight() );
 	}
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatFormattedTextFieldUI.java

@@ -44,6 +44,7 @@ import javax.swing.plaf.ComponentUI;
  * @uiDefault Component.minimumWidth					int
  * @uiDefault Component.isIntelliJTheme					boolean
  * @uiDefault FormattedTextField.placeholderForeground	Color
+ * @uiDefault FormattedTextField.focusedBackground		Color	optional
  * @uiDefault TextComponent.selectAllOnFocusPolicy		String	never, once (default) or always
  * @uiDefault TextComponent.selectAllOnMouseClick		boolean
  *

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatPasswordFieldUI.java

@@ -50,7 +50,6 @@ import com.formdev.flatlaf.util.HiDPIUtils;
  * @uiDefault PasswordField.disabledBackground		Color	used if not enabled
  * @uiDefault PasswordField.inactiveBackground		Color	used if not editable
  * @uiDefault PasswordField.inactiveForeground		Color	used if not enabled (yes, this is confusing; this should be named disabledForeground)
- * @uiDefault PasswordField.focusedBackground		Color	optional
  * @uiDefault PasswordField.border					Border
  * @uiDefault PasswordField.margin					Insets
  * @uiDefault PasswordField.echoChar				character
@@ -61,6 +60,7 @@ import com.formdev.flatlaf.util.HiDPIUtils;
  * @uiDefault Component.minimumWidth				int
  * @uiDefault Component.isIntelliJTheme				boolean
  * @uiDefault PasswordField.placeholderForeground	Color
+ * @uiDefault PasswordField.focusedBackground		Color	optional
  * @uiDefault PasswordField.showCapsLock			boolean
  * @uiDefault PasswordField.capsLockIcon			Icon
  * @uiDefault TextComponent.selectAllOnFocusPolicy	String	never, once (default) or always
@@ -117,7 +117,10 @@ public class FlatPasswordFieldUI
 	protected void installListeners() {
 		super.installListeners();
 
-		focusListener = new FlatUIUtils.RepaintFocusListener( getComponent() );
+		// necessary to update focus border and background
+		focusListener = new FlatUIUtils.RepaintFocusListener( getComponent(), null );
+
+		// update caps lock indicator
 		capsLockListener = new KeyAdapter() {
 			@Override
 			public void keyPressed( KeyEvent e ) {

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTextAreaUI.java

@@ -20,6 +20,7 @@ import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
+import java.awt.event.FocusListener;
 import java.beans.PropertyChangeEvent;
 import javax.swing.JComponent;
 import javax.swing.JTextArea;
@@ -42,7 +43,6 @@ import com.formdev.flatlaf.util.HiDPIUtils;
  * @uiDefault TextArea.selectionBackground		Color
  * @uiDefault TextArea.selectionForeground		Color
  * @uiDefault TextArea.inactiveForeground		Color	used if not enabled (yes, this is confusing; this should be named disabledForeground)
- * @uiDefault TextArea.focusedBackground		Color	optional
  * @uiDefault TextArea.border					Border
  * @uiDefault TextArea.margin					Insets
  * @uiDefault TextArea.caretBlinkRate			int		default is 500 milliseconds
@@ -53,6 +53,7 @@ import com.formdev.flatlaf.util.HiDPIUtils;
  * @uiDefault Component.isIntelliJTheme			boolean
  * @uiDefault TextArea.disabledBackground		Color	used if not enabled
  * @uiDefault TextArea.inactiveBackground		Color	used if not editable
+ * @uiDefault TextArea.focusedBackground		Color	optional
  *
  * @author Karl Tauber
  */
@@ -66,6 +67,8 @@ public class FlatTextAreaUI
 	protected Color inactiveBackground;
 	protected Color focusedBackground;
 
+	private FocusListener focusListener;
+
 	public static ComponentUI createUI( JComponent c ) {
 		return new FlatTextAreaUI();
 	}
@@ -99,6 +102,23 @@ public class FlatTextAreaUI
 		focusedBackground = null;
 	}
 
+	@Override
+	protected void installListeners() {
+		super.installListeners();
+
+		// necessary to update focus background
+		focusListener = new FlatUIUtils.RepaintFocusListener( getComponent(), c -> focusedBackground != null );
+		getComponent().addFocusListener( focusListener );
+	}
+
+	@Override
+	protected void uninstallListeners() {
+		super.uninstallListeners();
+
+		getComponent().removeFocusListener( focusListener );
+		focusListener = null;
+	}
+
 	@Override
 	protected void propertyChange( PropertyChangeEvent e ) {
 		super.propertyChange( e );
@@ -160,20 +180,6 @@ public class FlatTextAreaUI
 
 	@Override
 	protected void paintBackground( Graphics g ) {
-		JTextComponent c = getComponent();
-
-		// for compatibility with IntelliJ themes
-		if( isIntelliJTheme && (!c.isEnabled() || !c.isEditable()) && (c.getBackground() instanceof UIResource) ) {
-			FlatUIUtils.paintParentBackground( g, c );
-			return;
-		}
-
-		if( focusedBackground != null && FlatUIUtils.isPermanentFocusOwner( c ) ) {
-			g.setColor( focusedBackground );
-			g.fillRect( 0, 0, c.getWidth(), c.getHeight() );
-			return;
-		}
-
-		super.paintBackground( g );
+		FlatEditorPaneUI.paintBackground( g, getComponent(), isIntelliJTheme, focusedBackground );
 	}
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTextFieldUI.java

@@ -55,7 +55,6 @@ import com.formdev.flatlaf.util.JavaCompatibility;
  * @uiDefault TextField.disabledBackground		Color	used if not enabled
  * @uiDefault TextField.inactiveBackground		Color	used if not editable
  * @uiDefault TextField.inactiveForeground		Color	used if not enabled (yes, this is confusing; this should be named disabledForeground)
- * @uiDefault TextField.focusedBackground		Color	optional
  * @uiDefault TextField.border					Border
  * @uiDefault TextField.margin					Insets
  * @uiDefault TextField.caretBlinkRate			int		default is 500 milliseconds
@@ -65,6 +64,7 @@ import com.formdev.flatlaf.util.JavaCompatibility;
  * @uiDefault Component.minimumWidth			int
  * @uiDefault Component.isIntelliJTheme			boolean
  * @uiDefault TextField.placeholderForeground	Color
+ * @uiDefault TextField.focusedBackground		Color	optional
  * @uiDefault TextComponent.selectAllOnFocusPolicy	String	never, once (default) or always
  * @uiDefault TextComponent.selectAllOnMouseClick	boolean
  *
@@ -113,7 +113,8 @@ public class FlatTextFieldUI
 	protected void installListeners() {
 		super.installListeners();
 
-		focusListener = new FlatUIUtils.RepaintFocusListener( getComponent() );
+		// necessary to update focus border and background
+		focusListener = new FlatUIUtils.RepaintFocusListener( getComponent(), null );
 		getComponent().addFocusListener( focusListener );
 	}
 
@@ -184,18 +185,31 @@ public class FlatTextFieldUI
 		try {
 			FlatUIUtils.setRenderingHints( g2 );
 
-			Color background = focusedBackground != null && FlatUIUtils.isPermanentFocusOwner( c ) ? focusedBackground : c.getBackground();
-			g2.setColor( !(background instanceof UIResource)
-				? background
-				: (isIntelliJTheme && (!c.isEnabled() || !c.isEditable())
-					? FlatUIUtils.getParentBackground( c )
-					: background) );
+			g2.setColor( getBackground( c, isIntelliJTheme, focusedBackground ) );
 			FlatUIUtils.paintComponentBackground( g2, 0, 0, c.getWidth(), c.getHeight(), focusWidth, arc );
 		} finally {
 			g2.dispose();
 		}
 	}
 
+	static Color getBackground( JTextComponent c, boolean isIntelliJTheme, Color focusedBackground ) {
+		Color background = c.getBackground();
+
+		// always use explicitly set color
+		if( !(background instanceof UIResource) )
+			return background;
+
+		// for compatibility with IntelliJ themes
+		if( isIntelliJTheme && (!c.isEnabled() || !c.isEditable()) )
+			return FlatUIUtils.getParentBackground( c );
+
+		// focused and editable
+		if( focusedBackground != null && c.isEditable() && FlatUIUtils.isPermanentFocusOwner( c ) )
+			return focusedBackground;
+
+		return background;
+	}
+
 	static void paintPlaceholder( Graphics g, JTextComponent c, Color placeholderForeground ) {
 		// check whether text component is empty
 		if( c.getDocument().getLength() > 0 )

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTextPaneUI.java

@@ -16,17 +16,17 @@
 
 package com.formdev.flatlaf.ui;
 
+import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
+import java.awt.event.FocusListener;
 import java.beans.PropertyChangeEvent;
 import javax.swing.JComponent;
 import javax.swing.JEditorPane;
 import javax.swing.UIManager;
 import javax.swing.plaf.ComponentUI;
-import javax.swing.plaf.UIResource;
 import javax.swing.plaf.basic.BasicTextPaneUI;
-import javax.swing.text.JTextComponent;
 import com.formdev.flatlaf.util.HiDPIUtils;
 
 /**
@@ -51,6 +51,7 @@ import com.formdev.flatlaf.util.HiDPIUtils;
  *
  * @uiDefault Component.minimumWidth			int
  * @uiDefault Component.isIntelliJTheme			boolean
+ * @uiDefault TextPane.focusedBackground		Color	optional
  *
  * @author Karl Tauber
  */
@@ -59,8 +60,10 @@ public class FlatTextPaneUI
 {
 	protected int minimumWidth;
 	protected boolean isIntelliJTheme;
+	protected Color focusedBackground;
 
 	private Object oldHonorDisplayProperties;
+	private FocusListener focusListener;
 
 	public static ComponentUI createUI( JComponent c ) {
 		return new FlatTextPaneUI();
@@ -70,8 +73,10 @@ public class FlatTextPaneUI
 	protected void installDefaults() {
 		super.installDefaults();
 
+		String prefix = getPropertyPrefix();
 		minimumWidth = UIManager.getInt( "Component.minimumWidth" );
 		isIntelliJTheme = UIManager.getBoolean( "Component.isIntelliJTheme" );
+		focusedBackground = UIManager.getColor( prefix + ".focusedBackground" );
 
 		// use component font and foreground for HTML text
 		oldHonorDisplayProperties = getComponent().getClientProperty( JEditorPane.HONOR_DISPLAY_PROPERTIES );
@@ -82,9 +87,28 @@ public class FlatTextPaneUI
 	protected void uninstallDefaults() {
 		super.uninstallDefaults();
 
+		focusedBackground = null;
+
 		getComponent().putClientProperty( JEditorPane.HONOR_DISPLAY_PROPERTIES, oldHonorDisplayProperties );
 	}
 
+	@Override
+	protected void installListeners() {
+		super.installListeners();
+
+		// necessary to update focus background
+		focusListener = new FlatUIUtils.RepaintFocusListener( getComponent(), c -> focusedBackground != null );
+		getComponent().addFocusListener( focusListener );
+	}
+
+	@Override
+	protected void uninstallListeners() {
+		super.uninstallListeners();
+
+		getComponent().removeFocusListener( focusListener );
+		focusListener = null;
+	}
+
 	@Override
 	protected void propertyChange( PropertyChangeEvent e ) {
 		super.propertyChange( e );
@@ -108,14 +132,6 @@ public class FlatTextPaneUI
 
 	@Override
 	protected void paintBackground( Graphics g ) {
-		JTextComponent c = getComponent();
-
-		// for compatibility with IntelliJ themes
-		if( isIntelliJTheme && (!c.isEnabled() || !c.isEditable()) && (c.getBackground() instanceof UIResource) ) {
-			FlatUIUtils.paintParentBackground( g, c );
-			return;
-		}
-
-		super.paintBackground( g );
+		FlatEditorPaneUI.paintBackground( g, getComponent(), isIntelliJTheme, focusedBackground );
 	}
 }

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatUIUtils.java

@@ -837,18 +837,22 @@ debug*/
 		implements FocusListener
 	{
 		private final Component repaintComponent;
+		private final Predicate<Component> repaintCondition;
 
-		public RepaintFocusListener( Component repaintComponent ) {
+		public RepaintFocusListener( Component repaintComponent, Predicate<Component> repaintCondition ) {
 			this.repaintComponent = repaintComponent;
+			this.repaintCondition = repaintCondition;
 		}
 
 		@Override
 		public void focusGained( FocusEvent e ) {
+			if( repaintCondition == null || repaintCondition.test( repaintComponent ) )
 				repaintComponent.repaint();
 		}
 
 		@Override
 		public void focusLost( FocusEvent e ) {
+			if( repaintCondition == null || repaintCondition.test( repaintComponent ) )
 				repaintComponent.repaint();
 		}
 	}

flatlaf-swingx/src/main/java/com/formdev/flatlaf/swingx/ui/FlatDatePickerUI.java

@@ -156,7 +156,7 @@ public class FlatDatePickerUI
 		editor.setName( "dateField" );
 		editor.setBorder( BorderFactory.createEmptyBorder() );
 		editor.setOpaque( false );
-		editor.addFocusListener( new FlatUIUtils.RepaintFocusListener( datePicker ) );
+		editor.addFocusListener( new FlatUIUtils.RepaintFocusListener( datePicker, null ) );
 		return editor;
 	}
 

flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/FlatTestLaf.properties

@@ -152,6 +152,16 @@ Desktop.background = #afe
 DesktopIcon.background = darken($Desktop.background,20%)
 
 
+#---- EditorPane ----
+
+EditorPane.focusedBackground = #ff8
+
+
+#---- FormattedTextField ----
+
+FormattedTextField.focusedBackground = #ff8
+
+
 #---- HelpButton ----
 
 HelpButton.focusedBackground = #0ff
@@ -223,6 +233,11 @@ OptionPane.icon.warningColor = #fc0
 OptionPane.icon.foreground = #fff
 
 
+#---- PasswordField ----
+
+PasswordField.focusedBackground = #ff8
+
+
 #---- Popup ----
 
 Popup.dropShadowColor = #0f0
@@ -332,6 +347,21 @@ TableHeader.separatorColor = #0f0
 TableHeader.bottomSeparatorColor = #0f0
 
 
+#---- TextArea ----
+
+TextArea.focusedBackground = #ff8
+
+
+#---- TextField ----
+
+TextField.focusedBackground = #ff8
+
+
+#---- TextPane ----
+
+TextPane.focusedBackground = #ff8
+
+
 #---- TitledBorder ----
 
 TitledBorder.titleColor = #f0f