Fix corner radius for macos popups

build.gradle.kts

@@ -7,7 +7,7 @@ import com.github.vlsi.gradle.publishing.dsl.simplifyXml
 import com.github.vlsi.gradle.publishing.dsl.versionFromResolution
 import net.ltgt.gradle.errorprone.errorprone
 import org.gradle.api.tasks.testing.logging.TestExceptionFormat
-import java.util.*
+import java.util.Locale
 
 plugins {
     idea
@@ -96,7 +96,7 @@ allprojects {
             github(
                 user = "weisj",
                 repository = "darklaf",
-                workflow = "libs.yml"
+                workflow = "libs.yml",
             ) {
                 branches = listOfNotNull(currentBranch, "master", "v$projectVersion", projectVersion)
                 accessToken = githubAccessToken
@@ -188,7 +188,7 @@ allprojects {
             configure<SigningExtension> {
                 useInMemoryPgpKeys(
                     project.stringProperty("signing.inMemoryKey")?.replace("#", "\n"),
-                    project.stringProperty("signing.password")
+                    project.stringProperty("signing.password"),
                 )
             }
         }
@@ -213,7 +213,7 @@ allprojects {
                     disable(
                         "StringSplitter",
                         "InlineMeSuggester",
-                        "MissingSummary"
+                        "MissingSummary",
                     )
                 }
             }
@@ -314,16 +314,18 @@ allprojects {
 
                         description.set(
                             project.description
-                                ?: "A themeable Look and Feel for java swing"
+                                ?: "A themeable Look and Feel for java swing",
                         )
                         name.set(
                             (project.findProperty("artifact.name") as? String)
                                 ?: project.name
                                     .replaceFirstChar {
-                                        if (it.isLowerCase()) it.titlecase(Locale.getDefault())
-                                        else it.toString()
-                                    }
-                                    .replace("-", " ")
+                                        if (it.isLowerCase()) {
+                                            it.titlecase(Locale.getDefault())
+                                        } else {
+                                            it.toString()
+                                        }
+                                    }.replace("-", " "),
                         )
                         url.set("https://github.com/weisJ/darklaf")
                         organization {

core/src/main/java/com/github/weisj/darklaf/components/border/RoundedLineBorder.java

@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2023 Jannis Weis
+ * Copyright (c) 2023-2024 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,
@@ -25,8 +25,9 @@
 import javax.swing.border.Border;
 
 import com.github.weisj.darklaf.graphics.PaintUtil;
+import com.github.weisj.darklaf.platform.RoundedFrame;
 
-public class RoundedLineBorder implements Border {
+public class RoundedLineBorder implements Border, RoundedFrame {
 
     private final Color color;
     private final int arc;
@@ -38,6 +39,21 @@ public RoundedLineBorder(final Color color, final int arc, final int thickness)
         this.thickness = thickness;
     }
 
+    @Override
+    public int getRadius() {
+        return arc;
+    }
+
+    @Override
+    public Color getColor() {
+        return color;
+    }
+
+    @Override
+    public int getThickness() {
+        return thickness;
+    }
+
     @Override
     public void paintBorder(final Component c, final Graphics g, final int x, final int y, final int width,
             final int height) {

core/src/main/java/com/github/weisj/darklaf/ui/combobox/DarkComboPopup.java

@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2019-2023 Jannis Weis
+ * Copyright (c) 2019-2024 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,
@@ -109,14 +109,14 @@ protected void configureScroller() {
     protected void configurePopup() {
         setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
         setBorderPainted(true);
-        setOpaque(false);
         add(overlayScrollPane);
         setFocusable(false);
         setOpaque(true);
     }
 
     @Override
     public void show() {
+        setBackground(new Color(list.getBackground().getRGB()));
         comboBox.firePopupMenuWillBecomeVisible();
         setListSelection(comboBox.getSelectedIndex());
         Point location = getPopupLocation();

macos/src/main/java/com/github/weisj/darklaf/platform/macos/JNIDecorationsMacOS.java

@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2019-2022 Jannis Weis
+ * Copyright (c) 2019-2024 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,
@@ -34,6 +34,8 @@ public final class JNIDecorationsMacOS {
 
     public static native void installDecorations(final long hwnd);
 
+    public static native void installPopup(final long hwnd, final int radius, final int thickness, final int rgb);
+
     public static native void uninstallDecorations(final long hwnd,
             final boolean fullSizeContent, final boolean transparentTitleBar);
 

macos/src/main/java/com/github/weisj/darklaf/platform/macos/MacOSDecorationsProvider.java

@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2019-2022 Jannis Weis
+ * Copyright (c) 2019-2024 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,
@@ -25,8 +25,11 @@
 import java.util.List;
 
 import javax.swing.*;
+import javax.swing.border.Border;
+import javax.swing.border.CompoundBorder;
 
 import com.github.weisj.darklaf.platform.*;
+import com.github.weisj.darklaf.platform.macos.ui.MacOSDecorationsUtil;
 import com.github.weisj.darklaf.platform.macos.ui.MacOSTitlePane;
 
 public class MacOSDecorationsProvider implements DecorationsProvider {
@@ -58,6 +61,40 @@ public List<String> getPropertyResourcePaths() {
         return Collections.singletonList("macos_decorations");
     }
 
+    @Override
+    public void installPopupWindow(final Window window) {
+        if (!window.isDisplayable()) {
+            window.addNotify();
+        }
+        if (window instanceof RootPaneContainer) {
+            JRootPane rootPane = ((RootPaneContainer) window).getRootPane();
+            Border border = getOutermostBorder((JComponent) rootPane.getContentPane());
+            while (border instanceof CompoundBorder) {
+                border = ((CompoundBorder) border).getOutsideBorder();
+            }
+            if (border instanceof RoundedFrame) {
+                MacOSDecorationsUtil.installPopupWindow(window,
+                        ((RoundedFrame) border).getRadius(),
+                        ((RoundedFrame) border).getThickness(),
+                        ((RoundedFrame) border).getColor().getRGB());
+                window.repaint();
+            }
+        }
+    }
+
+    private static Border getOutermostBorder(final JComponent component) {
+        JComponent c = component;
+        while (c.getComponentCount() == 1 && c.getBorder() == null) {
+            JComponent child = (JComponent) c.getComponent(0);
+            if (child.getWidth() == c.getWidth() && child.getHeight() == c.getHeight()) {
+                c = child;
+            } else {
+                break;
+            }
+        }
+        return c.getBorder();
+    }
+
     @Override
     public boolean supportsNativeTitleLabel() {
         return SystemInfo.isMacOSMojave;

macos/src/main/java/com/github/weisj/darklaf/platform/macos/ui/MacOSDecorationsUtil.java

@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2020-2022 Jannis Weis
+ * Copyright (c) 2020-2024 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,
@@ -69,6 +69,11 @@ static DecorationInformation installDecorations(final JRootPane rootPane,
                 rootPane, titleVisible, titleBarHeight, titleFontSize);
     }
 
+    public static void installPopupWindow(final Window window, final int radius, final int thickness, final int rgb) {
+        long windowHandle = JNIDecorationsMacOS.getComponentPointer(window);
+        JNIDecorationsMacOS.installPopup(windowHandle, radius, thickness, radius);
+    }
+
     private static void setFullSizeContent(final long windowHandle, final boolean enabled) {
         if (enabled) {
             JNIDecorationsMacOS.installDecorations(windowHandle);

macos/src/main/objcpp/Decorations.mm

@@ -156,6 +156,36 @@
 JNF_COCOA_EXIT(env);
 }
 
+JNIEXPORT void JNICALL
+Java_com_github_weisj_darklaf_platform_macos_JNIDecorationsMacOS_installPopup(JNIEnv *env, jclass obj, jlong hwnd, jint radius, jint borderWidth, jint borderColor) {
+JNF_COCOA_ENTER(env);
+    NSWindow *nsWindow = OBJC(hwnd);
+    [JNF_RunLoop performOnMainThreadWaiting:YES withBlock:^{
+        nsWindow.hasShadow = YES;
+        nsWindow.contentView.wantsLayer = YES;
+        nsWindow.contentView.layer.cornerRadius = radius;
+        nsWindow.contentView.layer.masksToBounds = YES;
+
+        nsWindow.backgroundColor = NSColor.clearColor;
+        nsWindow.opaque = NO;
+
+        nsWindow.contentView.layer.borderWidth = borderWidth;
+        if( borderWidth > 0 ) {
+            CGFloat red   = ((borderColor >> 16) & 0xff) / 255.;
+            CGFloat green = ((borderColor >> 8) & 0xff) / 255.;
+            CGFloat blue  = (borderColor & 0xff) / 255.;
+            CGFloat alpha = ((borderColor >> 24) & 0xff) / 255.;
+
+            nsWindow.contentView.layer.borderColor = [[NSColor colorWithDeviceRed:red green:green blue:blue alpha:alpha] CGColor];
+        }
+
+        nsWindow.contentView.needsDisplay = YES;
+        [nsWindow.contentView.layer removeAllAnimations];
+        [nsWindow invalidateShadow];
+    }];
+JNF_COCOA_EXIT(env);
+}
+
 NSRect join(NSRect r, NSButton* button) {
     NSRect buttonRect = [button convertRect: [button bounds] toView: nil];
     return NSUnionRect(r, buttonRect);

platform-base/src/main/java/com/github/weisj/darklaf/platform/RoundedFrame.java

@@ -0,0 +1,31 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2024 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;
+
+import java.awt.*;
+
+public interface RoundedFrame {
+    int getRadius();
+
+    Color getColor();
+
+    int getThickness();
+}