Fix crash with single style properties

demo/gdml/src/jsMain/kotlin/space/kscience/visionforge/gdml/demo/GDMLAppComponent.kt

@@ -1,17 +1,20 @@
 package space.kscience.visionforge.gdml.demo
 
 import kotlinx.browser.window
-import kotlinx.css.*
+import kotlinx.css.height
+import kotlinx.css.vh
 import org.w3c.files.FileReader
 import org.w3c.files.get
 import react.*
 import react.dom.h1
+import ringui.grid.ringCol
+import ringui.grid.ringGrid
+import ringui.grid.ringRow
 import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.context.fetch
 import space.kscience.dataforge.names.Name
 import space.kscience.gdml.Gdml
 import space.kscience.gdml.decodeFromString
-import space.kscience.visionforge.bootstrap.gridRow
 import space.kscience.visionforge.bootstrap.nameCrumbs
 import space.kscience.visionforge.gdml.toVision
 import space.kscience.visionforge.react.ThreeCanvasComponent
@@ -21,7 +24,6 @@ import space.kscience.visionforge.solid.Solid
 import space.kscience.visionforge.solid.Solids
 import space.kscience.visionforge.solid.specifications.Canvas3DOptions
 import styled.css
-import styled.styledDiv
 
 external interface GDMLAppProps : RProps {
     var context: Context
@@ -62,54 +64,57 @@ val GDMLApp = functionalComponent<GDMLAppProps>("GDMLApp") { props ->
         vision = parsedVision as? Solid ?: error("Parsed vision is not a solid")
     }
 
-    gridRow {
-        flexColumn {
-            css {
-                +"col-lg-9"
-                height = 100.vh
-            }
-            styledDiv {
-                css {
-                    +"mx-auto"
-                    +"page-header"
-                }
-                h1 { +"GDML/JSON loader demo" }
-            }
-            nameCrumbs(selected, "World", onSelect)
-            //canvas
 
-            child(ThreeCanvasComponent) {
+    ringGrid {
+        ringRow {
+            ringCol {
                 attrs {
-                    this.context = props.context
+                    lg = 9
-                    this.obj = vision
-                    this.selected = selected
-                    this.options = options
                 }
-            }
+                flexColumn {
+                    css {
+                        height = 100.vh
+                    }
+                    h1 { +"GDML/JSON loader demo" }
+                    //canvas
 
-        }
+                    child(ThreeCanvasComponent) {
-        flexColumn {
+                        attrs {
-            css {
+                            this.context = props.context
-                +"col-lg-3"
+                            this.solid = vision
-                padding(top = 4.px)
+                            this.selected = selected
-                //border(1.px, BorderStyle.solid, Color.lightGray)
+                            this.options = options
-                height = 100.vh
-                overflowY = Overflow.auto
-            }
-            fileDrop("(drag file here)") { files ->
-                val file = files?.get(0)
-                if (file != null) {
-
-                    FileReader().apply {
-                        onload = {
-                            val string = result as String
-                            loadData(file.name, string)
                         }
-                        readAsText(file)
                     }
                 }
+
+            }
+            ringCol {
+                attrs {
+                    lg = 3
+                }
+                flexColumn {
+                    css {
+                        height = 100.vh
+                    }
+                    fileDrop("(drag file here)") { files ->
+                        val file = files?.get(0)
+                        if (file != null) {
+
+                            FileReader().apply {
+                                onload = {
+                                    val string = result as String
+                                    loadData(file.name, string)
+                                }
+                                readAsText(file)
+                            }
+                        }
+                    }
+                    nameCrumbs(selected, "World", onSelect)
+                    ringThreeControls(options, vision, selected, onSelect)
+                }
             }
-            ringThreeControls(options, vision, selected, onSelect)
         }
     }
 }
+

demo/gdml/src/jsMain/kotlin/space/kscience/visionforge/gdml/demo/fileDrop.kt

@@ -14,6 +14,7 @@ fun RBuilder.fileDrop(title: String, action: (files: FileList?) -> Unit) {
     styledDiv {
         css {
             border(style = BorderStyle.dashed, width = 1.px, color = Color.orange)
+            flexGrow = 0.0
             alignContent = Align.center
         }
 

demo/js-playground/build.gradle.kts

@@ -0,0 +1,27 @@
+plugins {
+    id("ru.mipt.npm.gradle.js")
+}
+
+kscience{
+    useCoroutines()
+    application()
+}
+
+kotlin{
+    js(IR){
+        useCommonJs()
+        browser {
+            commonWebpackConfig {
+                cssSupport.enabled = false
+            }
+        }
+    }
+}
+
+
+dependencies{
+    implementation(project(":visionforge-gdml"))
+    implementation(project(":visionforge-plotly"))
+    implementation(project(":visionforge-threejs"))
+    implementation(project(":ui:ring"))
+}

demo/js-playground/src/main/kotlin/JsPlaygroundApp.kt

@@ -0,0 +1,51 @@
+import kotlinx.browser.document
+import kotlinx.css.height
+import kotlinx.css.vh
+import kotlinx.css.vw
+import kotlinx.css.width
+import react.child
+import react.dom.render
+import space.kscience.dataforge.context.Context
+import space.kscience.gdml.GdmlShowCase
+import space.kscience.visionforge.Application
+import space.kscience.visionforge.VisionClient
+import space.kscience.visionforge.gdml.toVision
+import space.kscience.visionforge.ring.ThreeCanvasWithControls
+import space.kscience.visionforge.ring.ThreeWithControls
+import space.kscience.visionforge.startApplication
+import styled.css
+import styled.styledDiv
+
+private class JsPlaygroundApp : Application {
+
+    override fun start(state: Map<String, Any>) {
+
+        val playgroundContext = Context {
+            plugin(ThreeWithControls)
+            plugin(VisionClient)
+        }
+
+        val element = document.getElementById("playground") ?: error("Element with id 'playground' not found on page")
+
+        val visionOfD0 = GdmlShowCase.babyIaxo().toVision()
+
+        render(element) {
+            styledDiv {
+                css{
+                    height = 100.vh
+                    width = 100.vw
+                }
+                child(ThreeCanvasWithControls) {
+                    attrs {
+                        context = playgroundContext
+                        solid = visionOfD0
+                    }
+                }
+            }
+        }
+    }
+}
+
+public fun main() {
+    startApplication(::JsPlaygroundApp)
+}

demo/js-playground/src/main/resources/index.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>js-playground</title>
+    <script src="js-playground.js"></script>
+</head>
+<body>
+<div id="playground"></div>
+</body>
+</html>

demo/js-playground/webpack.config.d/01.ring.js

@@ -0,0 +1,3 @@
+const ringConfig = require('@jetbrains/ring-ui/webpack.config').config;
+
+config.module.rules.push(...ringConfig.module.rules)

demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMAppComponent.kt

@@ -34,14 +34,6 @@ external interface MMAppProps : RProps {
     var selected: Name?
 }
 
-private val canvasConfig = Canvas3DOptions {
-    camera = Camera {
-        distance = 2100.0
-        latitude = PI / 6
-        azimuth = PI + PI / 6
-    }
-}
-
 @JsExport
 val MMApp = functionalComponent<MMAppProps>("Muon monitor") { props ->
     var selected by useState { props.selected }
@@ -50,8 +42,13 @@ val MMApp = functionalComponent<MMAppProps>("Muon monitor") { props ->
         selected = it
     }
 
-    val options = useMemo {
+    val mmOptions = useMemo {
-        Canvas3DOptions.invoke {
+        Canvas3DOptions {
+            camera = Camera {
+                distance = 2100.0
+                latitude = PI / 6
+                azimuth = PI + PI / 6
+            }
             this.onSelect = onSelect
         }
     }
@@ -91,11 +88,9 @@ val MMApp = functionalComponent<MMAppProps>("Muon monitor") { props ->
             child(ThreeCanvasComponent) {
                 attrs {
                     this.context = props.context
-                    this.obj = root
+                    this.solid = root
                     this.selected = selected
-                    this.options = canvasConfig.apply {
+                    this.options = mmOptions
-                        this.onSelect = onSelect
-                    }
                 }
             }
         }
@@ -112,7 +107,7 @@ val MMApp = functionalComponent<MMAppProps>("Muon monitor") { props ->
                 }
                 //settings
                 card("Canvas configuration") {
-                    canvasControls(options, root)
+                    canvasControls(mmOptions, root)
                 }
 
                 card("Events") {
@@ -151,7 +146,7 @@ val MMApp = functionalComponent<MMAppProps>("Muon monitor") { props ->
                                 +"World"
                                 attrs {
                                     onClickFunction = {
-                                        selected = space.kscience.dataforge.names.Name.EMPTY
+                                        selected = Name.EMPTY
                                     }
                                 }
                             }

demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMDemoApp.kt

@@ -6,6 +6,7 @@ import io.ktor.client.features.json.serializer.KotlinxSerializer
 import kotlinx.browser.document
 import react.child
 import react.dom.render
+import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.context.Global
 import space.kscience.dataforge.context.fetch
 import space.kscience.visionforge.Application
@@ -29,7 +30,7 @@ private class MMDemoApp : Application {
 
         val element = document.getElementById("app") ?: error("Element with id 'app' not found on page")
 
-        val context = Global.buildContext("demo") {}
+        val context = Context("demo")
         render(element) {
             child(MMApp) {
                 attrs {

demo/playground/src/jvmMain/kotlin/gdmlIaxo.kt

@@ -3,7 +3,6 @@ package space.kscience.visionforge.examples
 import space.kscience.dataforge.context.Context
 import space.kscience.gdml.GdmlShowCase
 import space.kscience.visionforge.gdml.toVision
-import space.kscience.visionforge.html.ResourceLocation
 import space.kscience.visionforge.solid.Solids
 
 fun main() {
@@ -11,7 +10,7 @@ fun main() {
         plugin(Solids)
     }
 
-    context.makeVisionFile(        resourceLocation = ResourceLocation.EMBED) {
+    context.makeVisionFile {
         vision("canvas") { GdmlShowCase.babyIaxo().toVision() }
     }
 }

settings.gradle.kts

@@ -46,5 +46,6 @@ include(
     ":demo:playground",
     ":demo:jupyter-playground",
     ":demo:plotly-fx",
+    ":demo:js-playground",
     ":jupyter:visionforge-gdml-jupyter"
 )

ui/react/src/main/kotlin/space/kscience/visionforge/react/MetaViewer.kt

@@ -24,6 +24,11 @@ public external interface MetaViewerProps : RProps {
      */
     public var root: Meta
 
+    /**
+     * The title of root node
+     */
+    public var rootName: String?
+
     /**
      * Full path to the displayed node in [root]. Could be empty
      */
@@ -45,7 +50,7 @@ private fun RBuilder.metaViewerItem(props: MetaViewerProps) {
     val descriptorItem: ItemDescriptor? = props.descriptor?.get(props.name)
     val actualItem = item ?: descriptorItem?.defaultValue
 
-    val token = props.name.lastOrNull()?.toString() ?: "Meta"
+    val token = props.name.lastOrNull()?.toString() ?: props.rootName ?: ""
 
     val expanderClick: (Event) -> Unit = {
         expanded = !expanded

ui/react/src/main/kotlin/space/kscience/visionforge/react/PropertyEditor.kt

@@ -231,6 +231,7 @@ public val PropertyEditor: FunctionalComponent<PropertyEditorProps> = functional
             this.name = Name.EMPTY
             this.descriptor = props.descriptor
             this.scope = props.scope
+            this.expanded = props.expanded
         }
     }
 }

ui/react/src/main/kotlin/space/kscience/visionforge/react/RangeValueChooser.kt

@@ -1,5 +1,8 @@
 package space.kscience.visionforge.react
 
+import kotlinx.css.margin
+import kotlinx.css.padding
+import kotlinx.css.px
 import kotlinx.html.InputType
 import kotlinx.html.js.onChangeFunction
 import org.w3c.dom.HTMLInputElement
@@ -8,36 +11,63 @@ import react.FunctionalComponent
 import react.dom.attrs
 import react.functionalComponent
 import react.useState
+import space.kscience.dataforge.meta.double
 import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.meta.string
 import space.kscience.dataforge.values.asValue
+import styled.css
 import styled.styledInput
 
 @JsExport
 public val RangeValueChooser: FunctionalComponent<ValueChooserProps> =
     functionalComponent("RangeValueChooser") { props ->
-        var innerValue by useState(props.item.string)
+        var innerValue by useState(props.item.double)
+        var rangeDisabled: Boolean by useState(props.item == null)
+
+        val handleDisable: (Event) -> Unit = {
+            val checkBoxValue = (it.target as HTMLInputElement).checked
+            rangeDisabled = !checkBoxValue
+            if(!checkBoxValue) {
+                props.valueChanged?.invoke(null)
+            } else {
+                props.valueChanged?.invoke(innerValue?.asValue())
+            }
+        }
 
         val handleChange: (Event) -> Unit = {
             val newValue = (it.target as HTMLInputElement).value
             props.valueChanged?.invoke(newValue.toDoubleOrNull()?.asValue())
-            innerValue = newValue
+            innerValue = newValue.toDoubleOrNull()
         }
 
-        styledInput(type = InputType.range) {
+        flexRow {
-            attrs {
+            styledInput(type = InputType.checkBox) {
-                value = innerValue ?: ""
+                css{
-                onChangeFunction = handleChange
+                    padding(0.px)
-                val minValue = props.descriptor?.attributes?.get("min").string
+                    margin(0.px)
-                minValue?.let {
-                    min = it
                 }
-                val maxValue = props.descriptor?.attributes?.get("max").string
+                attrs {
-                maxValue?.let {
+                    defaultChecked = rangeDisabled.not()
-                    max = it
+                    onChangeFunction = handleDisable
                 }
-                props.descriptor?.attributes?.get("step").string?.let {
+            }
-                    step = it
+
+            styledInput(type = InputType.range) {
+                attrs {
+                    disabled = rangeDisabled
+                    value = innerValue?.toString() ?: ""
+                    onChangeFunction = handleChange
+                    val minValue = props.descriptor?.attributes?.get("min").string
+                    minValue?.let {
+                        min = it
+                    }
+                    val maxValue = props.descriptor?.attributes?.get("max").string
+                    maxValue?.let {
+                        max = it
+                    }
+                    props.descriptor?.attributes?.get("step").string?.let {
+                        step = it
+                    }
                 }
             }
         }

ui/react/src/main/kotlin/space/kscience/visionforge/react/ThreeCanvasComponent.kt

@@ -1,9 +1,8 @@
 package space.kscience.visionforge.react
 
-import kotlinx.css.Display
+import kotlinx.css.FlexBasis
-import kotlinx.css.display
+import kotlinx.css.flexBasis
-import kotlinx.css.height
+import kotlinx.css.flexGrow
-import kotlinx.css.pct
 import org.w3c.dom.Element
 import org.w3c.dom.HTMLElement
 import react.*
@@ -19,8 +18,8 @@ import styled.styledDiv
 
 public external interface ThreeCanvasProps : RProps {
     public var context: Context
-    public var options: Canvas3DOptions
+    public var options: Canvas3DOptions?
-    public var obj: Solid?
+    public var solid: Solid?
     public var selected: Name?
 }
 
@@ -37,15 +36,15 @@ public val ThreeCanvasComponent: FunctionalComponent<ThreeCanvasProps> = functio
 
     val three: ThreePlugin = useMemo({ props.context.fetch(ThreePlugin) }, arrayOf(props.context))
 
-    useEffect(listOf(props.obj, props.options, elementRef)) {
+    useEffect(listOf(props.solid, props.options, elementRef)) {
         if (canvas == null) {
             val element = elementRef.current as? HTMLElement ?: error("Canvas element not found")
-            canvas = three.getOrCreateCanvas(element, props.options)
+            canvas = three.getOrCreateCanvas(element, props.options ?: Canvas3DOptions())
         }
     }
 
-    useEffect(listOf(canvas, props.obj)) {
+    useEffect(listOf(canvas, props.solid)) {
-        props.obj?.let { obj ->
+        props.solid?.let { obj ->
             canvas?.render(obj)
         }
     }
@@ -56,8 +55,8 @@ public val ThreeCanvasComponent: FunctionalComponent<ThreeCanvasProps> = functio
 
     styledDiv {
         css {
-            display = Display.contents
+            flexGrow = 1.0
-            height = 100.pct
+            flexBasis = FlexBasis.fill
         }
         ref = elementRef
     }

ui/react/src/main/kotlin/space/kscience/visionforge/react/valueChooser.kt

@@ -21,6 +21,7 @@ import styled.styledSelect
 public external interface ValueChooserProps : RProps {
     public var item: MetaItem?
     public var descriptor: ValueDescriptor?
+    public var nullable: Boolean?
     public var valueChanged: ((Value?) -> Unit)?
 }
 

ui/ring/src/main/kotlin/ringui/tabs/SmartTabs.kt

@@ -4,14 +4,14 @@ import react.RBuilder
 import react.RHandler
 import react.dom.WithClassName
 
-public external interface SmartTabsProps: WithClassName {
+public external interface SmartTabsProps : WithClassName {
     public var initSelected: String
 }
 
 
-public fun RBuilder.ringSmartTabs(active: String? = null, handler: RHandler<SmartTabsProps>){
+public fun RBuilder.ringSmartTabs(active: String? = null, handler: RHandler<SmartTabsProps>) {
-    TabsModule.SmartTabs{
+    TabsModule.SmartTabs {
-        active?.let{
+        active?.let {
             attrs {
                 initSelected = active
             }

ui/ring/src/main/kotlin/ringui/tabs/Tabs.kt

@@ -40,10 +40,11 @@ public fun RBuilder.ringTabs(active: String? = null, handler: RHandler<TabsProps
     }
 }
 
-public fun RBuilder.ringTab(title: dynamic, handler: RHandler<TabProps>) {
+public fun RBuilder.ringTab(title: dynamic, id: String = title.toString(), handler: RHandler<TabProps>) {
     TabsModule.Tab {
         attrs {
             this.title = title
+            this.id = id
         }
         handler()
     }

ui/ring/src/main/kotlin/space.kscience.visionforge.ring/ThreeViewWithControls.kt

@@ -7,21 +7,20 @@ import ringui.grid.ringGrid
 import ringui.grid.ringRow
 import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.names.Name
-import space.kscience.visionforge.Vision
 import space.kscience.visionforge.react.ThreeCanvasComponent
 import space.kscience.visionforge.solid.Solid
 import space.kscience.visionforge.solid.specifications.Canvas3DOptions
 import styled.css
 import styled.styledDiv
 
-public external interface ThreeViewWithControlsProps : RProps {
+public external interface ThreeCanvasWithControlsProps : RProps {
     public var context: Context
-    public var vision: Vision?
+    public var solid: Solid?
     public var selected: Name?
 }
 
 @JsExport
-public val ThreeViewWithControls: (props: ThreeViewWithControlsProps) -> dynamic =
+public val ThreeCanvasWithControls: (props: ThreeCanvasWithControlsProps) -> dynamic =
     functionalComponent("ThreeViewWithControls") { props ->
         var selected by useState { props.selected }
         val onSelect: (Name?) -> Unit = {
@@ -51,7 +50,7 @@ public val ThreeViewWithControls: (props: ThreeViewWithControlsProps) -> dynamic
                         child(ThreeCanvasComponent) {
                             attrs {
                                 this.context = props.context
-                                this.obj = props.vision as? Solid
+                                this.solid = props.solid as? Solid
                                 this.selected = selected
                                 this.options = options
                             }
@@ -72,7 +71,7 @@ public val ThreeViewWithControls: (props: ThreeViewWithControlsProps) -> dynamic
                                 height = 100.pct
                                 overflowY = Overflow.auto
                             }
-                            ringThreeControls(options, props.vision, selected, onSelect)
+                            ringThreeControls(options, props.solid, selected, onSelect)
                         }
                     }
                 }

ui/ring/src/main/kotlin/space.kscience.visionforge.ring/ThreeWithControls.kt

@@ -25,10 +25,10 @@ public class ThreeWithControls : AbstractPlugin(), ElementVisionRenderer {
 
     override fun render(element: Element, vision: Vision, meta: Meta) {
         react.dom.render(element) {
-            child(ThreeViewWithControls) {
+            child(ThreeCanvasWithControls) {
                 attrs {
                     this.context = this@ThreeWithControls.context
-                    this.vision = vision
+                    this.solid = vision as? Solid
                 }
             }
         }

ui/ring/src/main/kotlin/space.kscience.visionforge.ring/ringPropertyEditor.kt

@@ -2,7 +2,9 @@ package space.kscience.visionforge.ring
 
 import org.w3c.dom.Element
 import react.RBuilder
+import react.dom.p
 import react.dom.render
+import react.useMemo
 import ringui.island.ringIsland
 import ringui.island.ringIslandContent
 import ringui.island.ringIslandHeader
@@ -10,6 +12,7 @@ import ringui.tabs.ringSmartTabs
 import ringui.tabs.ringTab
 import space.kscience.dataforge.meta.descriptors.NodeDescriptor
 import space.kscience.visionforge.*
+import space.kscience.visionforge.react.flexColumn
 import space.kscience.visionforge.react.metaViewer
 import space.kscience.visionforge.react.propertyEditor
 import space.kscience.visionforge.solid.SolidReference
@@ -20,37 +23,55 @@ public fun RBuilder.ringPropertyEditor(
     key: Any? = null,
 ) {
 
-    ringIsland("Properties") {
+    val styles = useMemo(vision, key) {
-        propertyEditor(
+        if (vision is SolidReference) {
-            ownProperties = vision.ownProperties,
+            (vision.styles + vision.prototype.styles).distinct()
-            allProperties = vision.allProperties(),
+        } else {
-            updateFlow = vision.propertyChanges,
+            vision.styles
-            descriptor = descriptor,
+        }
-            key = key
-        )
     }
-    val styles = if (vision is SolidReference) {
+    flexColumn {
-        (vision.styles + vision.prototype.styles).distinct()
+        ringIsland("Properties") {
-    } else {
+            propertyEditor(
-        vision.styles
+                ownProperties = vision.ownProperties,
-    }
+                allProperties = vision.allProperties(),
-    if (styles.isNotEmpty()) {
+                updateFlow = vision.propertyChanges,
-        ringIsland {
+                descriptor = descriptor,
-            ringIslandHeader {
+                key = key
-                attrs {
+            )
-                    border = true
+        }
+
+        if (styles.isNotEmpty()) {
+            ringIsland {
+                ringIslandHeader {
+                    attrs {
+                        border = true
+                    }
+                    +"Styles"
                 }
-                +"Styles"
+                ringIslandContent {
-            }
+                    if (styles.size == 1) {
-            ringIslandContent {
+                        val styleName = styles.first()
-                ringSmartTabs {
+                        p{
-                    styles.forEach { styleName ->
+                            +styleName
+                        }
                         val style = vision.getStyle(styleName)
                         if (style != null) {
-                            ringTab(styleName) {
+                            ringTab(styleName, id = styleName) {
                                 metaViewer(style)
                             }
                         }
+                    } else {
+                        ringSmartTabs {
+                            styles.forEach { styleName ->
+                                val style = vision.getStyle(styleName)
+                                if (style != null) {
+                                    ringTab(styleName, id = styleName) {
+                                        metaViewer(style)
+                                    }
+                                }
+                            }
+                        }
                     }
                 }
             }

ui/ring/src/main/kotlin/space.kscience.visionforge.ring/ringThreeControls.kt

@@ -92,22 +92,25 @@ public external interface ThreeControlsProps : RProps {
 
 @JsExport
 public val ThreeControls: FunctionalComponent<ThreeControlsProps> = functionalComponent { props ->
-    ringSmartTabs(if (props.selected != null) "Properties" else null) {
+    ringSmartTabs(if (props.selected != null) "Properties" else "Tree") {
         ringTab("Canvas") {
             ringIsland("Canvas configuration") {
                 canvasControls(props.canvasOptions, props.vision)
             }
         }
         ringTab("Tree") {
-            styledDiv {
+            flexColumn {
                 css {
                     border(1.px, BorderStyle.solid, Color.lightGray)
                     padding(10.px)
+                    flexGrow = 1.0
+                    flexWrap = FlexWrap.wrap
                 }
                 h2 { +"Object tree" }
                 styledDiv {
                     css {
-                        flex(1.0, 1.0, FlexBasis.inherit)
+                        overflowY = Overflow.auto
+                        flexGrow = 1.0
                     }
                     props.vision?.let {
                         objectTree(it, props.selected, props.onSelect)
@@ -115,15 +118,17 @@ public val ThreeControls: FunctionalComponent<ThreeControlsProps> = functionalCo
                 }
             }
         }
-        ringTab("Properties") {
+        if (props.selected != null) {
-            props.selected.let { selected ->
+            ringTab("Properties") {
-                val selectedObject: Vision? = when {
+                props.selected.let { selected ->
-                    selected == null -> null
+                    val selectedObject: Vision? = when {
-                    selected.isEmpty() -> props.vision
+                        selected == null -> null
-                    else -> (props.vision as? VisionGroup)?.get(selected)
+                        selected.isEmpty() -> props.vision
-                }
+                        else -> (props.vision as? VisionGroup)?.get(selected)
-                if (selectedObject != null) {
+                    }
-                    ringPropertyEditor(selectedObject, key = selected)
+                    if (selectedObject != null) {
+                        ringPropertyEditor(selectedObject, key = selected)
+                    }
                 }
             }
         }

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidReference.kt

@@ -11,7 +11,7 @@ import space.kscience.dataforge.misc.DFExperimental
 import space.kscience.dataforge.names.*
 import space.kscience.visionforge.*
 
-public interface SolidReference : Vision {
+public interface SolidReference : Solid {
     public val prototype: Solid
 }
 
@@ -76,11 +76,7 @@ public class SolidReferenceGroup(
         return if (name.isEmpty()) prototype else {
             val proto = (prototype as? SolidGroup)?.get(name)
                 ?: error("Prototype with name $name not found in SolidReferenceGroup $refName")
-            when (proto) {
+            proto as? Solid ?: error("Prototype with name $name is ${proto::class} but expected Solid")
-                is Solid -> proto
-                is SolidReference -> proto.prototype
-                else -> error("Prototype with name $name is ${proto::class} but expected Solid")
-            }
         }
     }
 
@@ -100,6 +96,22 @@ public class SolidReferenceGroup(
      */
     private inner class ReferenceChild(private val childName: Name) : SolidReference, VisionGroup {
 
+        //TODO replace by properties
+        override var position: Point3D?
+            get() = prototype.position
+            set(value) {
+                error("Can't set position of reference")
+            }
+        override var rotation: Point3D?
+            get() = prototype.rotation
+            set(value) {
+                error("Can't set position of reference")
+            }
+        override var scale: Point3D?
+            get() = prototype.scale
+            set(value) {
+                error("Can't set position of reference")
+            }
         override val prototype: Solid get() = prototypeFor(childName)
 
         override val children: Map<NameToken, Vision>

visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeCanvas.kt

@@ -103,27 +103,31 @@ public class ThreeCanvas(
     }.apply {
         setClearColor(Colors.skyblue, 1)
         //Clipping planes
-        localClippingEnabled = true
         options.onChange(this@ThreeCanvas) { name, _, _ ->
             if (name.startsWith(Canvas3DOptions::clipping.name.asName())) {
+                localClippingEnabled = true
                 val clipping = options.clipping
-                boundingBox?.let { boundingBox ->
+                if(!clipping.isEmpty()) {
-                    val xClippingPlane = clipping.x?.let {
+                    boundingBox?.let { boundingBox ->
-                        val absoluteValue = boundingBox.min.x + (boundingBox.max.x - boundingBox.min.x) * it
+                        val xClippingPlane = clipping.x?.let {
-                        Plane(Vector3(-1.0, 0.0, 0.0), absoluteValue)
+                            val absoluteValue = boundingBox.min.x + (boundingBox.max.x - boundingBox.min.x) * it
+                            Plane(Vector3(-1.0, 0.0, 0.0), absoluteValue)
 
-                    }
+                        }
-                    val yClippingPlane = clipping.y?.let {
+                        val yClippingPlane = clipping.y?.let {
-                        val absoluteValue = boundingBox.min.y + (boundingBox.max.y - boundingBox.min.y) * it
+                            val absoluteValue = boundingBox.min.y + (boundingBox.max.y - boundingBox.min.y) * it
-                        Plane(Vector3(0.0, -1.0, 0.0), absoluteValue)
+                            Plane(Vector3(0.0, -1.0, 0.0), absoluteValue)
-                    }
+                        }
 
-                    val zClippingPlane = clipping.z?.let {
+                        val zClippingPlane = clipping.z?.let {
-                        val absoluteValue = boundingBox.min.z + (boundingBox.max.z - boundingBox.min.z) * it
+                            val absoluteValue = boundingBox.min.z + (boundingBox.max.z - boundingBox.min.z) * it
-                        Plane(Vector3(0.0, 0.0, -1.0), absoluteValue)
+                            Plane(Vector3(0.0, 0.0, -1.0), absoluteValue)
+                        }
+                        clippingPlanes = listOfNotNull(xClippingPlane, yClippingPlane, zClippingPlane).toTypedArray()
                     }
-                    clippingPlanes = listOfNotNull(xClippingPlane, yClippingPlane, zClippingPlane).toTypedArray()
                 }
+            } else {
+                localClippingEnabled = false
             }
         }
     }