Don't rely on specific LaF properties for windows title bar buttons

windows/src/main/java/com/github/weisj/darklaf/platform/windows/ui/TitleBarButton.java

@@ -0,0 +1,73 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2022 Jannis Weis
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+ * associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+ * NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.github.weisj.darklaf.platform.windows.ui;
+
+import java.awt.*;
+
+import javax.swing.*;
+
+class TitleBarButton extends JButton {
+
+    private Color hoverColor;
+    private Color clickColor;
+
+    public TitleBarButton(final Action action) {
+        super(action);
+        setBorder(BorderFactory.createEmptyBorder());
+        setBorderPainted(false);
+    }
+
+    @Override
+    public Color getBackground() {
+        if (getModel().isArmed()) {
+            return clickColor;
+        } else if (getModel().isRollover()) {
+            return hoverColor;
+        }
+        return super.getBackground();
+    }
+
+    @Override
+    public void paint(final Graphics g) {
+        Icon icon = null;
+        if (getModel().isArmed()) {
+            g.setColor(clickColor);
+            g.fillRect(0, 0, getWidth(), getHeight());
+            icon = getPressedIcon();
+        } else if (getModel().isRollover()) {
+            g.setColor(hoverColor);
+            g.fillRect(0, 0, getWidth(), getHeight());
+            icon = getRolloverIcon();
+        }
+        if (icon == null) icon = getIcon();
+        icon.paintIcon(this, g, (getWidth() - icon.getIconWidth()) / 2, (getHeight() - icon.getIconHeight()) / 2);
+    }
+
+    public void setHoverColor(Color hoverColor) {
+        this.hoverColor = hoverColor;
+        if (getModel().isRollover()) repaint();
+    }
+
+    public void setClickColor(Color clickColor) {
+        this.clickColor = clickColor;
+        if (getModel().isArmed()) repaint();
+    }
+}

windows/src/main/java/com/github/weisj/darklaf/platform/windows/ui/WindowsTitlePane.java

@@ -72,9 +72,9 @@ public class WindowsTitlePane extends CustomTitlePane {
     private TitlebarIcon restoreIcon;
     private TitlebarIcon minimizeIcon;
     private JButton windowIconButton;
-    private JButton closeButton;
-    private JButton maximizeToggleButton;
-    private JButton minimizeButton;
+    private TitleBarButton closeButton;
+    private TitleBarButton maximizeToggleButton;
+    private TitleBarButton minimizeButton;
     private Action closeAction;
     private Action restoreAction;
     private Action maximizeAction;
@@ -86,7 +86,9 @@ public class WindowsTitlePane extends CustomTitlePane {
 
     private Color inactiveBackground;
     private Color inactiveForeground;
+    private Color hover;
     private Color inactiveHover;
+    private Color click;
     private Color inactiveClick;
     private Color activeBackground;
     private Color activeForeground;
@@ -120,24 +122,24 @@ public class WindowsTitlePane extends CustomTitlePane {
         rootPane.repaint();
     }
 
-    private static JButton createButton(final Icon icon, final Action action) {
+    private TitleBarButton createButton(final Icon icon, final Action action) {
         return createButton(icon, action, false);
     }
 
-    private static JButton createButton(final Icon icon, final Action action, final boolean close) {
-        JButton button = new JButton(action);
+    private TitleBarButton createButton(final Icon icon, final Action action, final boolean close) {
+        TitleBarButton button = new TitleBarButton(action);
         button.setRolloverEnabled(true);
         if (close) {
-            button.putClientProperty("JButton.borderless.hover",
-                    UIManager.getColor("Windows.TitlePane.close.rollOverColor"));
-            button.putClientProperty("JButton.borderless.click",
-                    UIManager.getColor("Windows.TitlePane.close.clickColor"));
+            button.setHoverColor(UIManager.getColor("Windows.TitlePane.close.rollOverColor"));
+            button.setClickColor(UIManager.getColor("Windows.TitlePane.close.clickColor"));
+        } else {
+            button.setHoverColor(hover);
+            button.setClickColor(click);
         }
         button.putClientProperty("JButton.noBorderlessOverwrite", true);
         button.setFocusable(false);
         button.setOpaque(false);
         button.setRolloverEnabled(true);
-        button.putClientProperty("JButton.variant", "borderlessRectangular");
         button.putClientProperty("paintActive", Boolean.TRUE);
         button.putClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY, button.getText());
         button.putClientProperty("JToolTip.style", "plain");
@@ -298,6 +300,8 @@ public class WindowsTitlePane extends CustomTitlePane {
         }
         inactiveBackground = UIManager.getColor("Windows.TitlePane.inactiveBackground");
         inactiveForeground = UIManager.getColor("Windows.TitlePane.inactiveForeground");
+        hover = UIManager.getColor("Windows.TitlePane.backgroundHover");
+        click = UIManager.getColor("Windows.TitlePane.backgroundClick");
         inactiveHover = UIManager.getColor("Windows.TitlePane.inactiveBackgroundHover");
         inactiveClick = UIManager.getColor("Windows.TitlePane.inactiveBackgroundClick");
         border = UIManager.getColor("Windows.TitlePane.borderColor");
@@ -432,13 +436,13 @@ public class WindowsTitlePane extends CustomTitlePane {
         getRootPane().repaint();
     }
 
-    protected void setButtonActive(final JButton button, final boolean active) {
+    protected void setButtonActive(final TitleBarButton button, final boolean active) {
         if (active) {
-            button.putClientProperty("JButton.borderless.hover", null);
-            button.putClientProperty("JButton.borderless.click", null);
+            button.setHoverColor(hover);
+            button.setClickColor(click);
         } else {
-            button.putClientProperty("JButton.borderless.hover", inactiveHover);
-            button.putClientProperty("JButton.borderless.click", inactiveClick);
+            button.setHoverColor(inactiveHover);
+            button.setClickColor(inactiveClick);
         }
     }
 

windows/src/main/resources/com/github/weisj/darklaf/platform/windows/windows_decorations.properties

@@ -1,6 +1,6 @@
 # MIT License
 #
-# Copyright (c) 2019-2021 Jannis Weis
+# Copyright (c) 2019-2022 Jannis Weis
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -40,6 +40,8 @@ Windows.TitlePane.borderColor                          = %borderSecondary
 Windows.TitlePane.background                           = %background
 Windows.TitlePane.foreground                           = %textForegroundSecondary
 Windows.TitlePane.inactiveBackground                   = %background
+Windows.TitlePane.backgroundHover                      = %hoverHighlight
+Windows.TitlePane.backgroundClick                      = %clickHighlight
 Windows.TitlePane.inactiveBackgroundHover              = %hoverHighlight
 Windows.TitlePane.inactiveBackgroundClick              = %clickHighlight
 Windows.TitlePane.inactiveForeground                   = %textForegroundInactive