focus menus search field on parent selection

make EnigmaMenu extend MenuElement
add SearchableElement
add AbstractSearchableEnigmaMenu and make all menus except SearchMenusMenu extend it

Author: supersaiyansubtlety

enigma-swing/src/main/java/org/quiltmc/enigma/gui/element/PlaceheldTextField.java

@@ -1,21 +1,28 @@
 package org.quiltmc.enigma.gui.element;
 
+import org.quiltmc.enigma.util.Utils;
+
 import javax.annotation.Nullable;
 import javax.swing.JTextField;
+import javax.swing.MenuElement;
+import javax.swing.MenuSelectionManager;
 import javax.swing.text.Document;
 import java.awt.Color;
+import java.awt.Component;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.Insets;
 import java.awt.RenderingHints;
 import java.awt.Toolkit;
+import java.awt.event.KeyEvent;
+import java.awt.event.MouseEvent;
 import java.util.Map;
 
 /**
  * A text field that displays placeholder text when it's empty.
  */
-public class PlaceheldTextField extends JTextField {
+public class PlaceheldTextField extends JTextField implements MenuElement {
 	private static final String DESKTOP_FONT_HINTS_KEY = "awt.font.desktophints";
 
 	@Nullable
@@ -98,7 +105,8 @@ protected void paintComponent(Graphics graphics) {
 				}
 			}
 
-			graphics.setColor(this.placeholderColor == null ? this.getForeground() : this.placeholderColor);
+			Utils.findFirstNonNull(this.placeholderColor, this.getDisabledTextColor(), this.getForeground())
+					.ifPresent(graphics::setColor);
 			graphics.setFont(this.getFont());
 
 			final Insets insets = this.getInsets();
@@ -116,9 +124,28 @@ public void setPlaceholder(@Nullable String placeholder) {
 
 	/**
 	 * @param color the placeholder color for this field; if {@code null}, the
-	 * {@linkplain #getForeground() foreground color} will be used
+	 * {@linkplain #getDisabledTextColor() disabled color} will be used
 	 */
 	public void setPlaceholderColor(@Nullable Color color) {
 		this.placeholderColor = color;
 	}
+
+	@Override
+	public void processMouseEvent(MouseEvent event, MenuElement[] path, MenuSelectionManager manager) { }
+
+	@Override
+	public void processKeyEvent(KeyEvent event, MenuElement[] path, MenuSelectionManager manager) { }
+
+	@Override
+	public void menuSelectionChanged(boolean isIncluded) { }
+
+	@Override
+	public MenuElement[] getSubElements() {
+		return new MenuElement[0];
+	}
+
+	@Override
+	public Component getComponent() {
+		return this;
+	}
 }

enigma-swing/src/main/java/org/quiltmc/enigma/gui/element/SearchableElement.java

@@ -0,0 +1,10 @@
+package org.quiltmc.enigma.gui.element;
+
+import javax.swing.MenuElement;
+import java.util.stream.Stream;
+
+public interface SearchableElement extends MenuElement {
+	Stream<String> streamSearchAliases();
+
+	void onSearchClicked();
+}

enigma-swing/src/main/java/org/quiltmc/enigma/gui/element/menu_bar/AbstractEnigmaMenu.java

@@ -4,10 +4,10 @@
 
 import javax.swing.JMenu;
 
-public class AbstractEnigmaMenu extends JMenu implements EnigmaMenu {
+public abstract class AbstractEnigmaMenu extends JMenu implements EnigmaMenu {
 	protected final Gui gui;
 
-	protected AbstractEnigmaMenu(Gui gui) {
+	public AbstractEnigmaMenu(Gui gui) {
 		this.gui = gui;
 	}
 

enigma-swing/src/main/java/org/quiltmc/enigma/gui/element/menu_bar/AbstractSearchableEnigmaMenu.java

@@ -0,0 +1,23 @@
+package org.quiltmc.enigma.gui.element.menu_bar;
+
+import org.quiltmc.enigma.gui.Gui;
+import org.quiltmc.enigma.gui.element.SearchableElement;
+
+import java.util.stream.Stream;
+
+public abstract class AbstractSearchableEnigmaMenu extends AbstractEnigmaMenu implements SearchableElement {
+	protected AbstractSearchableEnigmaMenu(Gui gui) {
+		super(gui);
+	}
+
+	@Override
+	public Stream<String> streamSearchAliases() {
+		return Stream.of(this.getText());
+	}
+
+	@Override
+	public void onSearchClicked() {
+		this.setSelected(true);
+		this.doClick();
+	}
+}

enigma-swing/src/main/java/org/quiltmc/enigma/gui/element/menu_bar/CollabMenu.java

@@ -15,7 +15,7 @@
 import java.io.IOException;
 import java.util.Arrays;
 
-public class CollabMenu extends AbstractEnigmaMenu {
+public class CollabMenu extends AbstractSearchableEnigmaMenu {
 	private final JMenuItem connectItem = new JMenuItem();
 	private final JMenuItem startServerItem = new JMenuItem();
 

enigma-swing/src/main/java/org/quiltmc/enigma/gui/element/menu_bar/DecompilerMenu.java

@@ -10,7 +10,7 @@
 import javax.swing.JMenuItem;
 import javax.swing.JRadioButtonMenuItem;
 
-public class DecompilerMenu extends AbstractEnigmaMenu {
+public class DecompilerMenu extends AbstractSearchableEnigmaMenu {
 	private final JMenuItem decompilerSettingsItem = new JMenuItem();
 
 	public DecompilerMenu(Gui gui) {

enigma-swing/src/main/java/org/quiltmc/enigma/gui/element/menu_bar/DevMenu.java

@@ -26,7 +26,7 @@
 import java.io.StringWriter;
 import java.nio.file.Files;
 
-public class DevMenu extends AbstractEnigmaMenu {
+public class DevMenu extends AbstractSearchableEnigmaMenu {
 	private final JCheckBoxMenuItem showMappingSourcePluginItem = new JCheckBoxMenuItem();
 	private final JCheckBoxMenuItem debugTokenHighlightsItem = new JCheckBoxMenuItem();
 	private final JCheckBoxMenuItem logClientPacketsItem = new JCheckBoxMenuItem();

enigma-swing/src/main/java/org/quiltmc/enigma/gui/element/menu_bar/EnigmaMenu.java

@@ -2,10 +2,12 @@
 
 import org.quiltmc.enigma.gui.ConnectionState;
 
-public interface EnigmaMenu {
-	default void setKeyBinds() {}
+import javax.swing.MenuElement;
 
-	default void updateState(boolean jarOpen, ConnectionState state) {}
+public interface EnigmaMenu extends MenuElement {
+	default void setKeyBinds() { }
 
-	default void retranslate() {}
+	default void updateState(boolean jarOpen, ConnectionState state) { }
+
+	default void retranslate() { }
 }

enigma-swing/src/main/java/org/quiltmc/enigma/gui/element/menu_bar/HelpMenu.java

@@ -7,7 +7,7 @@
 
 import javax.swing.JMenuItem;
 
-public class HelpMenu extends AbstractEnigmaMenu {
+public class HelpMenu extends AbstractSearchableEnigmaMenu {
 	private final JMenuItem aboutItem = new JMenuItem();
 	private final JMenuItem githubItem = new JMenuItem();
 	private final SearchMenusMenu searchItem;

enigma-swing/src/main/java/org/quiltmc/enigma/gui/element/menu_bar/MenuBar.java

@@ -8,6 +8,7 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.stream.Stream;
 
 public class MenuBar {
 	private final List<EnigmaMenu> menus = new ArrayList<>();
@@ -77,4 +78,8 @@ public CollabMenu getCollabMenu() {
 	public FileMenu getFileMenu() {
 		return this.fileMenu;
 	}
+
+	public Stream<EnigmaMenu> streamMenus() {
+		return this.menus.stream();
+	}
 }