FIR IDE: add fir icon to status bar to distinguish fir/fe10 ide

idea/idea-fir/src/org/jetbrains/kotlin/idea/fir/FirStatusBarWidgetFactory.kt

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.idea.fir
+
+import com.intellij.icons.AllIcons
+import com.intellij.ide.lightEdit.LightEdit
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.ui.Messages
+import com.intellij.openapi.util.Disposer
+import com.intellij.openapi.wm.StatusBar
+import com.intellij.openapi.wm.StatusBarWidget
+import com.intellij.openapi.wm.StatusBarWidgetFactory
+import com.intellij.util.Consumer
+import org.jetbrains.kotlin.idea.KotlinIconsIndependent
+import java.awt.event.MouseEvent
+import javax.swing.Icon
+
+internal class FirStatusBarWidgetFactory: StatusBarWidgetFactory {
+    override fun getId(): String = ID
+
+    override fun getDisplayName(): String = "FIR IDE"
+
+    override fun isAvailable(project: Project): Boolean = true
+
+    override fun createWidget(project: Project): StatusBarWidget = Widget()
+
+    override fun disposeWidget(widget: StatusBarWidget) = Disposer.dispose(widget)
+
+    override fun canBeEnabledOn(statusBar: StatusBar): Boolean = true
+
+    companion object {
+        const val ID = "kotlin.fir.ide"
+    }
+}
+
+private class Widget : StatusBarWidget, StatusBarWidget.IconPresentation {
+    override fun getPresentation(): StatusBarWidget.WidgetPresentation = this
+    override fun ID(): String = FirStatusBarWidgetFactory.ID
+    override fun getTooltipText(): String = "FIR IDE"
+    override fun getIcon(): Icon = KotlinIconsIndependent.FIR
+
+    override fun dispose() {}
+    override fun install(statusBar: StatusBar) {}
+    override fun getClickConsumer(): Consumer<MouseEvent>? =  null
+}

idea/idea-frontend-independent/src/org/jetbrains/kotlin/idea/KotlinIconsIndependent.java

@@ -35,6 +35,7 @@ public interface KotlinIconsIndependent {
 
     Icon ACTUAL = IconLoader.getIcon("/org/jetbrains/kotlin/idea/icons/actual.svg");
     Icon EXPECT = IconLoader.getIcon("/org/jetbrains/kotlin/idea/icons/expect.svg");
+    Icon FIR = IconLoader.getIcon("/org/jetbrains/kotlin/idea/icons/fir.svg");
 
     Icon LAUNCH = IconLoader.getIcon("/org/jetbrains/kotlin/idea/icons/kotlin_launch_configuration.svg");
     Icon LOAD_SCRIPT_CONFIGURATION = IconLoader.getIcon("/org/jetbrains/kotlin/idea/icons/loadScriptConfiguration.svg");

idea/resources-fir/META-INF/plugin.xml

@@ -115,6 +115,7 @@ The Kotlin FIR plugin provides language support in IntelliJ IDEA and Android Stu
 
   <extensions defaultExtensionNs="com.intellij">
     <!-- fir-specific -->
+    <statusBarWidgetFactory implementation="org.jetbrains.kotlin.idea.fir.FirStatusBarWidgetFactory"/>
     <projectService serviceInterface="org.jetbrains.kotlin.idea.frontend.api.KtAnalysisSessionProvider"
                         serviceImplementation="org.jetbrains.kotlin.idea.frontend.api.fir.KtFirAnalysisSessionProvider"/>
     <applicationService serviceInterface="org.jetbrains.kotlin.idea.references.KotlinReferenceProviderContributor"

idea/resources/org/jetbrains/kotlin/idea/icons/fir.svg

@@ -0,0 +1,11 @@
+<svg width="16" height="16" xmlns="http://www.w3.org/2000/svg">
+
+ <g>
+  <title>Layer 1</title>
+  <path id="svg_2" d="m1.85687,6.43906l6.5,-6.8125l6.5,6.8125l-13,0z" fill="#007f00"/>
+  <rect id="svg_9" height="3.6875" width="3.125" y="13" x="6.375" fill="#7f3f00"/>
+  <rect id="svg_10" height="0" width="0.0625" y="15.1875" x="27.8125" fill="#7f3f00"/>
+  <path id="svg_12" d="m1.60687,10.50156l6.5,-6.8125l6.5,6.8125l-13,0z" fill="#007f00"/>
+  <path id="svg_13" d="m1.60687,14.50156l6.5,-6.8125l6.5,6.8125l-13,0z" fill="#007f00"/>
+ </g>
+</svg>