Add Compose for Intellij usage example (#1728)

* Add example of using Compose for Intellij plugin * Add instruction on how to use Compose for Intellij plugin
3 years ago · ef205f64bc
24 changed files with 997 additions and 1 deletions
--- a/examples/intellij-plugin-with-experimental-shared-base/.gitignore
+++ b/examples/intellij-plugin-with-experimental-shared-base/.gitignore
@ -0,0 +1,3 @@
+build/
+.gradle/
+.idea/
--- a/examples/intellij-plugin-with-experimental-shared-base/README.md
+++ b/examples/intellij-plugin-with-experimental-shared-base/README.md
@ -0,0 +1,19 @@
+## Example Compose Multiplatform based plugin for IntelliJ Idea.
+
+A plugin, demonstrating an Intellij plugin, showing a dialog window written with Compose.
+
+The only difference from [examples/intellij-plugin](../intellij-plugin) is that
+this version does not bundle Compose runtime, which makes the plugin smaller
+and allows sharing Compose runtime between multiple plugins
+(Compose class files and native libraries are not loaded by each plugin).
+
+### Usage
+
+1. Start test IDE:
+   * Choose the `runIde` task in the Gradle panel in Intellij;
+   * Or run the following command in terminal: `./gradlew runIde`;
+2. Create a new project or open any existing;
+3. Select `Show Compose Demo...` from the `Tools` menu.
+
+![screen1](../intellij-plugin/screenshots/toolsshow.png)
+![screen2](../intellij-plugin/screenshots/screenshot.png)
--- a/examples/intellij-plugin-with-experimental-shared-base/build.gradle.kts
+++ b/examples/intellij-plugin-with-experimental-shared-base/build.gradle.kts
@ -0,0 +1,37 @@
+import org.jetbrains.compose.compose
+
+plugins {
+    id("org.jetbrains.intellij") version "1.3.0"
+    java
+    kotlin("jvm")
+    id("org.jetbrains.compose")
+    id("idea")
+}
+
+group = "org.jetbrains.compose.intellij.platform"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+    google()
+    maven { url = uri("https://maven.pkg.jetbrains.space/public/p/compose/dev") }
+}
+
+dependencies {
+    // runtime dependency is provided by org.jetbrains.compose.intellij.platform
+    compileOnly(compose.desktop.currentOs)
+
+    testImplementation("junit", "junit", "4.12")
+}
+
+// See https://github.com/JetBrains/gradle-intellij-plugin/
+intellij {
+    version.set("2021.3")
+    plugins.set(
+        listOf("org.jetbrains.compose.intellij.platform:0.1.0")
+    )
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
+    kotlinOptions.jvmTarget = "11"
+}
--- a/examples/intellij-plugin-with-experimental-shared-base/gradle.properties
+++ b/examples/intellij-plugin-with-experimental-shared-base/gradle.properties
@ -0,0 +1,5 @@
+kotlin.stdlib.default.dependency=false
+kotlin.code.style=official
+kotlin.version=1.6.10
+compose.version=1.0.1
+
--- a/examples/intellij-plugin-with-experimental-shared-base/gradle/wrapper/gradle-wrapper.jar
+++ b/examples/intellij-plugin-with-experimental-shared-base/gradle/wrapper/gradle-wrapper.jar
--- a/examples/intellij-plugin-with-experimental-shared-base/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/intellij-plugin-with-experimental-shared-base/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
--- a/examples/intellij-plugin-with-experimental-shared-base/gradlew
+++ b/examples/intellij-plugin-with-experimental-shared-base/gradlew
@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# 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.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+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
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+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="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$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
+
+# 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 [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # 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 "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# 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 "$JAVACMD" "$@"
--- a/examples/intellij-plugin-with-experimental-shared-base/gradlew.bat
+++ b/examples/intellij-plugin-with-experimental-shared-base/gradlew.bat
@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+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!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/examples/intellij-plugin-with-experimental-shared-base/settings.gradle.kts
+++ b/examples/intellij-plugin-with-experimental-shared-base/settings.gradle.kts
@ -0,0 +1,8 @@
+rootProject.name = "ComposeDemoPlugin"
+
+pluginManagement {
+    plugins {
+        kotlin("jvm").version(extra["kotlin.version"] as String)
+        id("org.jetbrains.compose").version(extra["compose.version"] as String)
+    }
+}
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/ComposeDemoAction.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/ComposeDemoAction.kt
@ -0,0 +1,70 @@
+package com.jetbrains.compose
+
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material.Surface
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.awt.ComposePanel
+import androidx.compose.ui.layout.Layout
+import androidx.compose.ui.layout.MeasurePolicy
+import androidx.compose.ui.layout.onGloballyPositioned
+import com.intellij.openapi.actionSystem.AnActionEvent
+import com.intellij.openapi.project.DumbAwareAction
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.ui.DialogWrapper
+import com.jetbrains.compose.theme.WidgetTheme
+import com.jetbrains.compose.widgets.Buttons
+import com.jetbrains.compose.widgets.LazyScrollable
+import com.jetbrains.compose.widgets.Loaders
+import com.jetbrains.compose.widgets.TextInputs
+import com.jetbrains.compose.widgets.Toggles
+import java.awt.Dimension
+import javax.swing.JComponent
+import javax.swing.SwingUtilities
+
+
+/**
+ * @author Konstantin Bulenkov
+ */
+class ComposeDemoAction : DumbAwareAction() {
+    override fun actionPerformed(e: AnActionEvent) {
+        DemoDialog(e.project).show()
+    }
+
+    class DemoDialog(project: Project?) : DialogWrapper(project) {
+        init {
+            title = "Demo"
+            init()
+        }
+
+        override fun createCenterPanel(): JComponent {
+            return ComposePanel().apply {
+                setBounds(0, 0, 800, 600)
+                setContent {
+                    WidgetTheme(darkTheme = true) {
+                        Surface(modifier = Modifier.fillMaxSize()) {
+                            Row {
+                                Column(
+                                    modifier = Modifier.fillMaxHeight().weight(1f)
+                                ) {
+                                    Buttons()
+                                    Loaders()
+                                    TextInputs()
+                                    Toggles()
+                                }
+                                Box(
+                                    modifier = Modifier.fillMaxHeight().weight(1f)
+                                ) {
+                                    LazyScrollable()
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/Color.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/Color.kt
@ -0,0 +1,9 @@
+package com.jetbrains.compose.theme
+
+import androidx.compose.ui.graphics.Color
+
+val green200 = Color(0xffa5d6a7)
+val green500 = Color(0xff4caf50)
+val green700 = Color(0xff388e3c)
+
+val teal200 = Color(0xff80deea)
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/Shape.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/Shape.kt
@ -0,0 +1,11 @@
+package com.jetbrains.compose.theme
+
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Shapes
+import androidx.compose.ui.unit.dp
+
+val shapes = Shapes(
+    small = RoundedCornerShape(4.dp),
+    medium = RoundedCornerShape(4.dp),
+    large = RoundedCornerShape(0.dp)
+)
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/Theme.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/Theme.kt
@ -0,0 +1,46 @@
+package com.jetbrains.compose.theme
+
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.darkColors
+import androidx.compose.material.lightColors
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.graphics.Color
+import com.jetbrains.compose.theme.intellij.SwingColor
+
+private val DarkGreenColorPalette = darkColors(
+    primary = green200,
+    primaryVariant = green700,
+    secondary = teal200,
+    onPrimary = Color.Black,
+    onSecondary = Color.White,
+    error = Color.Red,
+)
+
+private val LightGreenColorPalette = lightColors(
+    primary = green500,
+    primaryVariant = green700,
+    secondary = teal200,
+    onPrimary = Color.White,
+    onSurface = Color.Black
+)
+
+@Composable
+fun WidgetTheme(
+    darkTheme: Boolean = false,
+    content: @Composable() () -> Unit,
+) {
+    val colors = if (darkTheme) DarkGreenColorPalette else LightGreenColorPalette
+    val swingColor = SwingColor()
+
+    MaterialTheme(
+        colors = colors.copy(
+            background = swingColor.background,
+            onBackground = swingColor.onBackground,
+            surface = swingColor.background,
+            onSurface = swingColor.onBackground,
+        ),
+        typography = typography,
+        shapes = shapes,
+        content = content
+    )
+}
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/Type.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/Type.kt
@ -0,0 +1,43 @@
+package com.jetbrains.compose.theme
+
+import androidx.compose.material.Typography
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+val typography = Typography(
+    body1 = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp
+    ),
+    body2 = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 14.sp
+    ),
+    button = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.W500,
+        fontSize = 14.sp
+    ),
+    caption = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 12.sp,
+    ),
+    subtitle1 = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        color = Color.Gray
+    ),
+    subtitle2 = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 14.sp,
+        color = Color.Gray
+    ),
+)
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/intellij/SwingColor.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/intellij/SwingColor.kt
@ -0,0 +1,61 @@
+package com.jetbrains.compose.theme.intellij
+
+import androidx.compose.runtime.*
+import androidx.compose.ui.graphics.Color
+import com.intellij.ide.ui.LafManagerListener
+import com.intellij.openapi.application.ApplicationManager
+import javax.swing.UIManager
+import java.awt.Color as AWTColor
+
+interface SwingColor {
+    val background: Color
+    val onBackground: Color
+}
+
+@Composable
+fun SwingColor(): SwingColor {
+    val swingColor = remember { SwingColorImpl() }
+
+    val messageBus = remember {
+        ApplicationManager.getApplication().messageBus.connect()
+    }
+
+    remember(messageBus) {
+        messageBus.subscribe(
+            LafManagerListener.TOPIC,
+            ThemeChangeListener(swingColor::updateCurrentColors)
+        )
+    }
+
+    DisposableEffect(messageBus) {
+        onDispose {
+            messageBus.disconnect()
+        }
+    }
+
+    return swingColor
+}
+
+private class SwingColorImpl : SwingColor {
+    private val _backgroundState: MutableState<Color> = mutableStateOf(getBackgroundColor)
+    private val _onBackgroundState: MutableState<Color> = mutableStateOf(getOnBackgroundColor)
+
+    override val background: Color get() = _backgroundState.value
+    override val onBackground: Color get() = _onBackgroundState.value
+
+    private val getBackgroundColor get() = getColor(BACKGROUND_KEY)
+    private val getOnBackgroundColor get() = getColor(ON_BACKGROUND_KEY)
+
+    fun updateCurrentColors() {
+        _backgroundState.value = getBackgroundColor
+        _onBackgroundState.value = getOnBackgroundColor
+    }
+
+    private val AWTColor.asComposeColor: Color get() = Color(red, green, blue, alpha)
+    private fun getColor(key: String): Color = UIManager.getColor(key).asComposeColor
+
+    companion object {
+        private const val BACKGROUND_KEY = "Panel.background"
+        private const val ON_BACKGROUND_KEY = "Panel.foreground"
+    }
+}
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/intellij/ThemeChangeListener.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/theme/intellij/ThemeChangeListener.kt
@ -0,0 +1,13 @@
+package com.jetbrains.compose.theme.intellij
+
+import com.intellij.ide.ui.LafManager
+import com.intellij.ide.ui.LafManagerListener
+
+internal class ThemeChangeListener(
+    val updateColors: () -> Unit
+) : LafManagerListener {
+    override fun lookAndFeelChanged(source: LafManager) {
+        updateColors()
+    }
+}
+
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/widgets/Buttons.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/widgets/Buttons.kt
@ -0,0 +1,57 @@
+package com.jetbrains.compose.widgets
+
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.Button
+import androidx.compose.material.TextButton
+import androidx.compose.material.OutlinedButton
+import androidx.compose.material.Text
+import androidx.compose.material.Icon
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.FavoriteBorder
+import androidx.compose.material.icons.filled.Refresh
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun Buttons() {
+    Row {
+        val btnEnabled = remember { mutableStateOf(true) }
+        Button(
+            onClick = { btnEnabled.value = !btnEnabled.value},
+            modifier = Modifier.padding(8.dp),
+            enabled = btnEnabled.value
+        ) {
+            Icon(
+                imageVector = Icons.Default.FavoriteBorder,
+                contentDescription = "FavoriteBorder",
+                modifier = Modifier.padding(end = 4.dp)
+            )
+            Text(text = "Button")
+        }
+        val btnTextEnabled = remember { mutableStateOf(true) }
+        TextButton(
+            onClick = { btnTextEnabled.value = !btnTextEnabled.value },
+            modifier = Modifier.padding(8.dp),
+            enabled = btnTextEnabled.value
+        ) {
+            Text(text = "Text Button")
+        }
+        OutlinedButton(
+            onClick = {
+                btnEnabled.value = true
+                btnTextEnabled.value = true
+            },
+            modifier = Modifier.padding(8.dp)
+        ) {
+            Icon(
+                imageVector = Icons.Default.Refresh,
+                contentDescription = "Refresh",
+                modifier = Modifier.padding(0.dp)
+            )
+        }
+    }
+}
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/widgets/LazyScrollable.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/widgets/LazyScrollable.kt
@ -0,0 +1,71 @@
+package com.jetbrains.compose.widgets
+
+import androidx.compose.desktop.DesktopTheme
+import androidx.compose.foundation.background
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.rememberScrollbarAdapter
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.VerticalScrollbar
+import androidx.compose.material.Text
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Surface
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun LazyScrollable() {
+    MaterialTheme {
+        DesktopTheme {
+            Box(
+                modifier = Modifier.fillMaxSize()
+                    .padding(10.dp)
+            ) {
+
+                val state = rememberLazyListState()
+                val itemCount = 100
+
+                LazyColumn(Modifier.fillMaxSize().padding(end = 12.dp), state) {
+                    items(itemCount) { x ->
+                        TextBox("Item in ScrollableColumn #$x")
+                        Spacer(modifier = Modifier.height(5.dp))
+                    }
+                }
+                VerticalScrollbar(
+                    modifier = Modifier.align(Alignment.CenterEnd).fillMaxHeight(),
+                    adapter = rememberScrollbarAdapter(
+                        scrollState = state
+                    )
+                )
+            }
+        }
+    }
+}
+
+@Composable
+private fun TextBox(text: String = "Item") {
+    Surface(
+        color = Color(135, 135, 135, 40),
+        shape = RoundedCornerShape(4.dp)
+    ) {
+        Box(
+            modifier = Modifier.height(32.dp)
+                .fillMaxWidth()
+                .padding(start = 10.dp),
+            contentAlignment = Alignment.CenterStart
+        ) {
+            Text(text = text)
+        }
+    }
+}
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/widgets/Loaders.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/widgets/Loaders.kt
@ -0,0 +1,39 @@
+package com.jetbrains.compose.widgets
+
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.size
+import androidx.compose.material.CircularProgressIndicator
+import androidx.compose.material.LinearProgressIndicator
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun Loaders() {
+    Row(
+        modifier = Modifier.fillMaxWidth().padding(16.dp)
+    ) {
+        Box(
+            modifier = Modifier.height(30.dp),
+            contentAlignment = Alignment.Center
+        ) {
+            CircularProgressIndicator(
+                modifier = Modifier.size(20.dp, 20.dp),
+                strokeWidth = 4.dp
+            )
+        }
+        Box(
+            modifier = Modifier
+                .height(30.dp)
+                .padding(start = 8.dp),
+            contentAlignment = Alignment.Center
+        ) {
+            LinearProgressIndicator(modifier = Modifier.fillMaxWidth())
+        }
+    }
+}
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/widgets/TextInputs.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/widgets/TextInputs.kt
@ -0,0 +1,53 @@
+package com.jetbrains.compose.widgets
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.Text
+import androidx.compose.material.TextField
+import androidx.compose.material.OutlinedTextField
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun TextInputs() {
+    Column(
+        modifier = Modifier.fillMaxWidth().padding(16.dp)
+    ) {
+        var name by remember { mutableStateOf(TextFieldValue("")) }
+        var password by remember { mutableStateOf(TextFieldValue("")) }
+
+        TextField(
+            value = name,
+            onValueChange = { newValue -> name = newValue },
+            modifier = Modifier.padding(8.dp).fillMaxWidth(),
+            textStyle = TextStyle(fontFamily = FontFamily.SansSerif),
+            label = { Text("Account:") },
+            placeholder = { Text("account name") }
+        )
+
+        OutlinedTextField(
+            value = password,
+            modifier = Modifier.padding(8.dp).fillMaxWidth(),
+            label = { Text(text = "Password:") },
+            placeholder = { Text(text = "your password") },
+            textStyle = TextStyle(fontFamily = FontFamily.SansSerif),
+            visualTransformation = PasswordVisualTransformation(),
+            onValueChange = {
+                password = it
+            },
+            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password)
+        )
+    }
+}
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/widgets/Toggles.kt
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/kotlin/com/jetbrains/compose/widgets/Toggles.kt
@ -0,0 +1,90 @@
+package com.jetbrains.compose.widgets
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.Checkbox
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.RadioButton
+import androidx.compose.material.Slider
+import androidx.compose.material.Switch
+import androidx.compose.material.SwitchDefaults
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun Toggles() {
+    Column {
+        Row {
+            Column(
+                modifier = Modifier.padding(16.dp)
+            ) {
+                var checked by remember { mutableStateOf(true) }
+                Checkbox(
+                    checked = checked,
+                    modifier = Modifier.padding(8.dp),
+                    onCheckedChange = { checked = !checked }
+                )
+                var switched by remember { mutableStateOf(true) }
+                Switch(
+                    checked = switched,
+                    colors = SwitchDefaults.colors(checkedThumbColor = MaterialTheme.colors.primary),
+                    modifier = Modifier.padding(8.dp),
+                    onCheckedChange = { switched = it }
+                )
+            }
+            Column(
+                modifier = Modifier.padding(16.dp)
+            ) {
+                var selected by remember { mutableStateOf("Kotlin") }
+                Row(verticalAlignment = Alignment.CenterVertically) {
+                    RadioButton(selected = selected == "Kotlin", onClick = { selected = "Kotlin" })
+                    Text(
+                        text = "Kotlin",
+                        modifier = Modifier.clickable(onClick = { selected = "Kotlin" }).padding(start = 4.dp)
+                    )
+                }
+                Row(verticalAlignment = Alignment.CenterVertically) {
+                    RadioButton(selected = selected == "Java", onClick = { selected = "Java" })
+                    Text(
+                        text = "Java",
+                        modifier = Modifier.clickable(onClick = { selected = "Java" }).padding(start = 4.dp)
+                    )
+                }
+                Row(verticalAlignment = Alignment.CenterVertically) {
+                    RadioButton(selected = selected == "Swift", onClick = { selected = "Swift" })
+                    Text(
+                        text = "Swift",
+                        modifier = Modifier.clickable(onClick = { selected = "Swift" }).padding(start = 4.dp)
+                    )
+                }
+            }
+        }
+
+        var sliderState by remember { mutableStateOf(0f) }
+        Slider(value = sliderState, modifier = Modifier.fillMaxWidth().padding(8.dp),
+            onValueChange = { newValue ->
+                sliderState = newValue
+            }
+        )
+
+        var sliderState2 by remember { mutableStateOf(20f) }
+        Slider(value = sliderState2, modifier = Modifier.fillMaxWidth().padding(8.dp),
+            valueRange = 0f..100f,
+            steps = 5,
+            onValueChange = { newValue ->
+                sliderState2 = newValue
+            }
+        )
+    }
+}
--- a/examples/intellij-plugin-with-experimental-shared-base/src/main/resources/META-INF/plugin.xml
+++ b/examples/intellij-plugin-with-experimental-shared-base/src/main/resources/META-INF/plugin.xml
@ -0,0 +1,22 @@
+<idea-plugin>
+    <id>com.jetbrains.ComposeDemoPlugin</id>
+    <name>Jetpack Compose for Desktop Demo</name>
+    <vendor email="support@jetbrains.com" url="http://www.jetbrains.com">JetBrains</vendor>
+
+    <description><![CDATA[
+A plugin demonstrates Jetpack compose capabilities on IntelliJ Platform
+    ]]></description>
+
+    <!-- please see https://www.jetbrains.org/intellij/sdk/docs/basics/getting_started/plugin_compatibility.html
+         on how to target different products -->
+    <depends>com.intellij.modules.platform</depends>
+    <depends>org.jetbrains.compose.intellij.platform</depends>
+
+    <actions>
+        <!-- Add your actions here -->
+        <action id="com.jetbrains.compose.ComposeDemoAction" class="com.jetbrains.compose.ComposeDemoAction"
+                text="Show Compose Demo...">
+            <add-to-group group-id="ToolsMenu" anchor="last"/>
+        </action>
+    </actions>
+</idea-plugin>
--- a/examples/intellij-plugin/README.md
+++ b/examples/intellij-plugin/README.md
@ -2,7 +2,7 @@

 To run the example:

-1. from directory `compose-jb/examples/intelliJPlugin` run command in terminal: `./gradlew runIde`
+1. from directory `compose-jb/examples/intellij-plugin` run command in terminal: `./gradlew runIde`
 2. create project or open any existing
 3. from menu `Tools` select `Show Compose Demo...`

--- a/tooling/compose-intellij-platform/README.md
+++ b/tooling/compose-intellij-platform/README.md
@ -0,0 +1,60 @@
+## Compose for IDE Plugin Development
+
+This is an experimental plugin, enabling Intellij plugin development
+with Compose.
+For now, it only provides Compose runtime classes and native libraries,
+so they can be reused by different plugins.
+
+### Usage
+
+The following steps assume [gradle-intellij-plugin](https://github.com/JetBrains/gradle-intellij-plugin) is used
+for Intellij plugin development:
+1. Add Compose as `compileOnly` dependency to your plugin's dependencies.
+2. Add the platform plugin's ID to `intellij` block in a Gradle script and to a
+`plugin.xml`.
+3. Add `kotlin.stdlib.default.dependency=false` to `gradle.properties`.
+4. Use `runIde` Gradle task to run a test IDE.
+
+```
+// build.gradle.kts
+
+import org.jetbrains.compose.compose
+
+plugins {
+    id("org.jetbrains.intellij") version "1.3.0"
+    id("org.jetbrains.kotlin.jvm") version "1.6.10"
+    id("org.jetbrains.compose") version "1.0.1"
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    compileOnly(compose.desktop.currentOs)
+}
+
+// See https://github.com/JetBrains/gradle-intellij-plugin/
+intellij {
+    pluginName.set("Example plugin name")
+    version.set("2021.3")
+    plugins.set(listOf("org.jetbrains.compose.intellij.platform:0.1.0"))
+}
+```
+
+```
+<!-- src/main/resources/META-INF/plugin.xml -->
+<idea-plugin>
+    <id>com.jetbrains.ComposeDemoPlugin</id>
+    <name>Jetpack Compose for Desktop Demo</name>
+    <vendor>Demo Vendor</vendor>
+
+    <description>...</description>
+
+    <depends>com.intellij.modules.platform</depends>
+    <depends>org.jetbrains.compose.intellij.platform</depends>
+</idea-plugin>
+```
+
+A complete example can be found at 
+[examples/intellij-plugin-with-experimental-shared-base](../../examples/intellij-plugin-with-experimental-shared-base).