Ensure non-opaque popups can be closed using the associated keyboard shortcut.

core/src/main/java/com/github/weisj/darklaf/components/tabframe/PopupContainer.java

@@ -40,12 +40,22 @@ public class PopupContainer extends JPanel {
         super.setBorder(null);
     }
 
+
     public Component getPopup() {
         return popup;
     }
 
     public void setPopup(final Component component) {
         removeAll();
+        if (component instanceof JComponent) {
+            JComponent c = (JComponent) component;
+            setActionMap(c.getActionMap());
+            setInputMap(JComponent.WHEN_FOCUSED, c.getInputMap(JComponent.WHEN_FOCUSED));
+            setInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT,
+                    c.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT));
+            setInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW, c.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW));
+        }
+
         add(component, BorderLayout.CENTER);
         this.popup = component;
         revalidate();

core/src/main/java/com/github/weisj/darklaf/ui/tabframe/DarkPanelPopupUI.java

@@ -33,7 +33,10 @@ import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.UIResource;
 
 import com.github.weisj.darklaf.components.border.MutableLineBorder;
-import com.github.weisj.darklaf.components.tabframe.*;
+import com.github.weisj.darklaf.components.tabframe.JTabFrame;
+import com.github.weisj.darklaf.components.tabframe.PanelPopup;
+import com.github.weisj.darklaf.components.tabframe.TabFramePopup;
+import com.github.weisj.darklaf.components.tabframe.TabFramePopupUI;
 import com.github.weisj.darklaf.components.uiresource.JLabelUIResource;
 import com.github.weisj.darklaf.ui.button.DarkButtonUI;
 import com.github.weisj.darklaf.ui.panel.DarkPanelUI;
@@ -54,7 +57,7 @@ public class DarkPanelPopupUI extends DarkPanelUI implements PropertyChangeListe
     protected Color headerBackground;
     protected Color headerButtonHoverBackground;
     protected Color headerButtonClickBackground;
-    protected String accelerator;
+    protected KeyStroke closeAccelerator;
     private PanelPopup popupComponent;
     private JPanel header;
     private MutableLineBorder headerBorder;
@@ -82,10 +85,9 @@ public class DarkPanelPopupUI extends DarkPanelUI implements PropertyChangeListe
         headerFocusBackground = UIManager.getColor("TabFramePopup.headerFocusBackground");
         headerButtonFocusHoverBackground = UIManager.getColor("TabFramePopup.headerButtonFocusHoverBackground");
         headerButtonFocusClickBackground = UIManager.getColor("TabFramePopup.headerButtonFocusClickBackground");
-        accelerator = UIManager.getString("TabFramePopup.closeAccelerator");
-        popupComponent.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT)
-                .put(KeyStroke.getKeyStroke(accelerator), accelerator);
-        popupComponent.getActionMap().put(accelerator, closeAction);
+        closeAccelerator = KeyStroke.getKeyStroke(UIManager.getString("TabFramePopup.closeAccelerator"));
+        popupComponent.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(closeAccelerator, "close");
+        popupComponent.getActionMap().put("close", closeAction);
         popupComponent.setLayout(new BorderLayout());
     }
 
@@ -173,9 +175,8 @@ public class DarkPanelPopupUI extends DarkPanelUI implements PropertyChangeListe
         uninstallComponents();
         uninstallListeners();
         popupComponent.removeAll();
-        popupComponent.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT)
-                .remove(KeyStroke.getKeyStroke(accelerator));
-        popupComponent.getActionMap().remove(accelerator);
+        popupComponent.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).remove(closeAccelerator);
+        popupComponent.getActionMap().remove("close");
         popupComponent = null;
     }