.gitignore

@@ -1,5 +1,8 @@
-/.idea/*
-!/.idea/runConfigurations
+/.idea/dictionaries
+/.idea/inspectionProfiles
+/.idea/jarRepositories.xml
+/.idea/misc.xml
+/.idea/*.iml
 
 /.gradle/
 /build/

.idea/.gitignore

@@ -0,0 +1,5 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>

.idea/encodings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" defaultCharsetForPropertiesFiles="UTF-8">
+    <file url="PROJECT" charset="UTF-8" />
+  </component>
+</project>

.idea/gradle.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="delegatedBuild" value="true" />
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GitSharedSettings">
+    <option name="FORCE_PUSH_PROHIBITED_PATTERNS">
+      <list />
+    </option>
+  </component>
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

build.gradle.kts

@@ -1,22 +1,24 @@
-@file:Suppress("ConvertLambdaToReference")
-
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-	kotlin("jvm") version "1.8.0"
-	id("org.jetbrains.intellij") version "1.15.0"
+	kotlin("jvm") version "1.5.10"
+	id("org.jetbrains.intellij") version "1.2.0"
 }
 
 group = "com.chylex.intellij.keyboardmaster"
 version = "0.2.1"
 
 repositories {
-	mavenCentral()
+    mavenCentral()
+}
+
+dependencies {
+    testImplementation("org.junit.jupiter:junit-jupiter-api:5.6.0")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine")
 }
 
 intellij {
-	type.set("IU")
-	version.set("2023.2")
+    version.set("2021.2.2")
 	updateSinceUntilBuild.set(false)
 	
 	if (System.getenv("IDEAVIM") == "1") {
@@ -24,24 +26,6 @@ intellij {
 	}
 }
 
-kotlin {
-	jvmToolchain(17)
-}
-
-dependencies {
-	testImplementation("org.junit.jupiter:junit-jupiter:5.9.2")
-}
-
-tasks.patchPluginXml {
-	sinceBuild.set("232")
-}
-
-tasks.test {
-	useJUnitPlatform()
-}
-
 tasks.withType<KotlinCompile> {
-	kotlinOptions.freeCompilerArgs = listOf(
-		"-Xjvm-default=all"
-	)
+	kotlinOptions.jvmTarget = "11"
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,7 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-bin.zip
-networkTimeout=10000
-validateDistributionUrl=true
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,7 +1,7 @@
-#!/bin/sh
+#!/usr/bin/env sh
 
 #
-# Copyright © 2015-2021 the original authors.
+# Copyright 2015 the original author or authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,99 +17,67 @@
 #
 
 ##############################################################################
-#
-#   Gradle start up script for POSIX generated by Gradle.
-#
-#   Important for running:
-#
-#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
-#       noncompliant, but you have some other compliant shell such as ksh or
-#       bash, then to run this script, type that shell name before the whole
-#       command line, like:
-#
-#           ksh Gradle
-#
-#       Busybox and similar reduced shells will NOT work, because this script
-#       requires all of these POSIX shell features:
-#         * functions;
-#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
-#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
-#         * compound commands having a testable exit status, especially «case»;
-#         * various built-in commands including «command», «set», and «ulimit».
-#
-#   Important for patching:
-#
-#   (2) This script targets any POSIX shell, so it avoids extensions provided
-#       by Bash, Ksh, etc; in particular arrays are avoided.
-#
-#       The "traditional" practice of packing multiple parameters into a
-#       space-separated string is a well documented source of bugs and security
-#       problems, so this is (mostly) avoided, by progressively accumulating
-#       options in "$@", and eventually passing that to Java.
-#
-#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
-#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
-#       see the in-line comments for details.
-#
-#       There are tweaks for specific operating systems such as AIX, CygWin,
-#       Darwin, MinGW, and NonStop.
-#
-#   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
-#       within the Gradle project.
-#
-#       You can find Gradle at https://github.com/gradle/gradle/.
-#
+##
+##  Gradle start up script for UN*X
+##
 ##############################################################################
 
 # Attempt to set APP_HOME
-
 # Resolve links: $0 may be a link
-app_path=$0
-
-# Need this for daisy-chained symlinks.
-while
-    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
-    [ -h "$app_path" ]
-do
-    ls=$( ls -ld "$app_path" )
-    link=${ls#*' -> '}
-    case $link in             #(
-      /*)   app_path=$link ;; #(
-      *)    app_path=$APP_HOME$link ;;
-    esac
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
 done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
 
-# This is normally unused
-# shellcheck disable=SC2034
-APP_BASE_NAME=${0##*/}
-# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD=maximum
+MAX_FD="maximum"
 
 warn () {
     echo "$*"
-} >&2
+}
 
 die () {
     echo
     echo "$*"
     echo
     exit 1
-} >&2
+}
 
 # OS specific support (must be 'true' or 'false').
 cygwin=false
 msys=false
 darwin=false
 nonstop=false
-case "$( uname )" in                #(
-  CYGWIN* )         cygwin=true  ;; #(
-  Darwin* )         darwin=true  ;; #(
-  MSYS* | MINGW* )  msys=true    ;; #(
-  NONSTOP* )        nonstop=true ;;
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MSYS* | MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
 esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
@@ -119,9 +87,9 @@ CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
         # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD=$JAVA_HOME/jre/sh/java
+        JAVACMD="$JAVA_HOME/jre/sh/java"
     else
-        JAVACMD=$JAVA_HOME/bin/java
+        JAVACMD="$JAVA_HOME/bin/java"
     fi
     if [ ! -x "$JAVACMD" ] ; then
         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
@@ -130,120 +98,88 @@ Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
     fi
 else
-    JAVACMD=java
-    if ! command -v java >/dev/null 2>&1
-    then
-        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
-    fi
 fi
 
 # Increase the maximum file descriptors if we can.
-if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
-    case $MAX_FD in #(
-      max*)
-        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
-        MAX_FD=$( ulimit -H -n ) ||
-            warn "Could not query maximum file descriptor limit"
-    esac
-    case $MAX_FD in  #(
-      '' | soft) :;; #(
-      *)
-        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
-        ulimit -n "$MAX_FD" ||
-            warn "Could not set maximum file descriptor limit to $MAX_FD"
-    esac
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
 fi
 
-# Collect all arguments for the java command, stacking in reverse order:
-#   * args from the command line
-#   * the main class name
-#   * -classpath
-#   * -D...appname settings
-#   * --module-path (only if needed)
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
 
 # For Cygwin or MSYS, switch paths to Windows format before running java
-if "$cygwin" || "$msys" ; then
-    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
-    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
 
-    JAVACMD=$( cygpath --unix "$JAVACMD" )
+    JAVACMD=`cygpath --unix "$JAVACMD"`
 
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    for arg do
-        if
-            case $arg in                                #(
-              -*)   false ;;                            # don't mess with options #(
-              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
-                    [ -e "$t" ] ;;                      #(
-              *)    false ;;
-            esac
-        then
-            arg=$( cygpath --path --ignore --mixed "$arg" )
-        fi
-        # Roll the args list around exactly as many times as the number of
-        # args, so each arg winds up back in the position where it started, but
-        # possibly modified.
-        #
-        # NB: a `for` loop captures its iteration list before it begins, so
-        # changing the positional parameters here affects neither the number of
-        # iterations, nor the values presented in `arg`.
-        shift                   # remove old arg
-        set -- "$@" "$arg"      # push replacement arg
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
     done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
 fi
 
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
 
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
-
-set -- \
-        "-Dorg.gradle.appname=$APP_BASE_NAME" \
-        -classpath "$CLASSPATH" \
-        org.gradle.wrapper.GradleWrapperMain \
-        "$@"
-
-# Stop when "xargs" is not available.
-if ! command -v xargs >/dev/null 2>&1
-then
-    die "xargs is not available"
-fi
-
-# Use "xargs" to parse quoted args.
-#
-# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
-#
-# In Bash we could simply go:
-#
-#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
-#   set -- "${ARGS[@]}" "$@"
-#
-# but POSIX shell has neither arrays nor command substitution, so instead we
-# post-process each arg (as a line of input to sed) to backslash-escape any
-# character that might be a shell metacharacter, then use eval to reverse
-# that process (while maintaining the separation between arguments), and wrap
-# the whole thing up as a single "set" statement.
-#
-# This will of course break if any of these variables contains a newline or
-# an unmatched quote.
-#
-
-eval "set -- $(
-        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
-        xargs -n1 |
-        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
-        tr '\n' ' '
-    )" '"$@"'
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
 
 exec "$JAVACMD" "$@"

gradlew.bat

@@ -14,7 +14,7 @@
 @rem limitations under the License.
 @rem
 
-@if "%DEBUG%"=="" @echo off
+@if "%DEBUG%" == "" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,8 +25,7 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%"=="" set DIRNAME=.
-@rem This is normally unused
+if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -41,7 +40,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if %ERRORLEVEL% equ 0 goto execute
+if "%ERRORLEVEL%" == "0" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -76,15 +75,13 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if %ERRORLEVEL% equ 0 goto mainEnd
+if "%ERRORLEVEL%"=="0" goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-set EXIT_CODE=%ERRORLEVEL%
-if %EXIT_CODE% equ 0 set EXIT_CODE=1
-if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
-exit /b %EXIT_CODE%
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal

src/main/kotlin/com/chylex/intellij/keyboardmaster/PluginStartup.kt

@@ -3,12 +3,12 @@ package com.chylex.intellij.keyboardmaster
 import com.chylex.intellij.keyboardmaster.feature.codeCompletion.CodeCompletionPopupKeyHandler
 import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.project.Project
-import com.intellij.openapi.startup.ProjectActivity
+import com.intellij.openapi.startup.StartupActivity
 
-class PluginStartup : ProjectActivity {
+class PluginStartup : StartupActivity.DumbAware {
 	private var isInitialized = false
 	
-	override suspend fun execute(project: Project) {
+	override fun runActivity(project: Project) {
 		if (!isInitialized) {
 			isInitialized = true
 			

src/main/kotlin/com/chylex/intellij/keyboardmaster/feature/actions/NextMenuItemAction.kt

@@ -0,0 +1,17 @@
+package com.chylex.intellij.keyboardmaster.feature.actions
+
+import javax.swing.JList
+import javax.swing.JTree
+
+class NextMenuItemAction : SelectMenuItemBaseAction() {
+	override fun updateSelection(list: JList<*>) {
+		setSelectedIndex(list, list.selectedIndex + 1)
+	}
+	
+	override fun updateSelection(tree: JTree) {
+		val row = tree.selectionRows?.maxOrNull()
+		if (row != null) {
+			setSelectedIndex(tree, row + 1)
+		}
+	}
+}

src/main/kotlin/com/chylex/intellij/keyboardmaster/feature/actions/PrevMenuItemAction.kt

@@ -0,0 +1,23 @@
+package com.chylex.intellij.keyboardmaster.feature.actions
+
+import javax.swing.JList
+import javax.swing.JTree
+
+class PrevMenuItemAction : SelectMenuItemBaseAction() {
+	override fun updateSelection(list: JList<*>) {
+		val index = list.selectedIndex
+		if (index == -1) {
+			setSelectedIndex(list, list.model.size - 1)
+		}
+		else {
+			setSelectedIndex(list, index - 1)
+		}
+	}
+	
+	override fun updateSelection(tree: JTree) {
+		val row = tree.selectionRows?.minOrNull()
+		if (row != null) {
+			setSelectedIndex(tree, row - 1)
+		}
+	}
+}

src/main/kotlin/com/chylex/intellij/keyboardmaster/feature/actions/SelectMenuItemBaseAction.kt

@@ -0,0 +1,74 @@
+package com.chylex.intellij.keyboardmaster.feature.actions
+
+import com.intellij.codeInsight.lookup.LookupManager
+import com.intellij.codeInsight.lookup.impl.LookupImpl
+import com.intellij.ide.actions.BigPopupUI
+import com.intellij.openapi.actionSystem.AnActionEvent
+import com.intellij.openapi.actionSystem.CommonDataKeys
+import com.intellij.openapi.project.DumbAwareAction
+import com.intellij.ui.ComponentUtil
+import java.awt.KeyboardFocusManager
+import javax.swing.JList
+import javax.swing.JTree
+
+abstract class SelectMenuItemBaseAction internal constructor(): DumbAwareAction() {
+	init {
+		isEnabledInModalContext = true
+	}
+	
+	final override fun actionPerformed(e: AnActionEvent) {
+		val editor = e.getData(CommonDataKeys.EDITOR)
+		if (editor != null) {
+			val lookup = LookupManager.getActiveLookup(editor)
+			if (lookup is LookupImpl) {
+				updateSelection(lookup.list)
+				return
+			}
+		}
+		
+		var focused = KeyboardFocusManager.getCurrentKeyboardFocusManager().focusOwner
+		while (focused != null) {
+			if (focused is JList<*>) {
+				updateSelection(focused)
+				break
+			}
+			else if (focused is JTree) {
+				updateSelection(focused)
+				break
+			}
+			else if (focused is BigPopupUI) {
+				val list = ComponentUtil.findComponentsOfType(focused, JList::class.java).singleOrNull()
+				if (list != null) {
+					updateSelection(list)
+					break
+				}
+				
+				val tree = ComponentUtil.findComponentsOfType(focused, JTree::class.java).singleOrNull()
+				if (tree != null) {
+					updateSelection(tree)
+					break
+				}
+			}
+			
+			focused = focused.parent
+		}
+	}
+	
+	protected abstract fun updateSelection(list: JList<*>)
+	
+	protected fun setSelectedIndex(list: JList<*>, newIndex: Int) {
+		if (newIndex in 0 until list.model.size) {
+			list.selectedIndex = newIndex
+			list.ensureIndexIsVisible(newIndex)
+		}
+	}
+	
+	protected abstract fun updateSelection(tree: JTree)
+	
+	protected fun setSelectedIndex(list: JTree, newIndex: Int) {
+		if (newIndex in 0 until list.rowCount) {
+			list.setSelectionRow(newIndex)
+			list.scrollRowToVisible(newIndex)
+		}
+	}
+}

src/main/resources/META-INF/plugin.xml

@@ -2,6 +2,7 @@
   <id>com.chylex.intellij.keyboardmaster.KeyboardMaster</id>
   <name>Keyboard Master</name>
   <vendor url="https://chylex.com">chylex</vendor>
+  <idea-version since-build="212.5284" />
   
   <description><![CDATA[
     Collection of keyboard-centric additions.
@@ -22,4 +23,9 @@
     <applicationConfigurable parentId="tools" instance="com.chylex.intellij.keyboardmaster.configuration.PluginConfigurable" id="com.chylex.keyboardmaster" />
     <postStartupActivity implementation="com.chylex.intellij.keyboardmaster.PluginStartup" order="last" />
   </extensions>
+  
+  <actions>
+    <action id="com.chylex.intellij.keyboardmaster.feature.actions.NextMenuItemAction" class="com.chylex.intellij.keyboardmaster.feature.actions.NextMenuItemAction" text="Next Menu Item" />
+    <action id="com.chylex.intellij.keyboardmaster.feature.actions.PrevMenuItemAction" class="com.chylex.intellij.keyboardmaster.feature.actions.PrevMenuItemAction" text="Previous Menu Item" />
+  </actions>
 </idea-plugin>