Add compose-html

CHANGELOG.md

@@ -7,7 +7,7 @@
 - Custom client-side events and thier processing in VisionServer
 
 ### Changed
-- Color accessor property is now `colorProperty`. Color uses `invoke` instead of `set`
+- Color accessor property is now `colorProperty`. Color uses non-nullable `invoke` instead of `set`. 
 - API update for server and pages
 - Edges moved to solids module for easier construction
 - Visions **must** be rooted in order to subscribe to updates.

build.gradle.kts

@@ -12,7 +12,7 @@ val fxVersion by extra("11")
 
 allprojects {
     group = "space.kscience"
-    version = "0.3.0-dev-14"
+    version = "0.3.0-dev-16"
 }
 
 subprojects {

demo/muon-monitor/build.gradle.kts

@@ -13,7 +13,6 @@ kscience {
     useKtor()
     fullStack(
         "muon-monitor.js",
-        development = true,
         jvmConfig = { withJava() },
         jsConfig = { useCommonJs() }
     ) {
@@ -47,9 +46,6 @@ application {
     mainClass.set("ru.mipt.npm.muon.monitor.server.MMServerKt")
 }
 
-//TODO ???
-tasks.getByName("jsBrowserProductionWebpack").dependsOn("jsDevelopmentExecutableCompileSync")
-
 //distributions {
 //    main {
 //        contents {

gradle.properties

@@ -8,6 +8,6 @@ org.gradle.jvmargs=-Xmx4G
 
 org.jetbrains.compose.experimental.jscanvas.enabled=true
 
-toolsVersion=0.15.0-kotlin-1.9.20-RC2
+toolsVersion=0.15.0-kotlin-1.9.20
 #kotlin.experimental.tryK2=true
 #kscience.wasm.disabled=true

settings.gradle.kts

@@ -45,7 +45,7 @@ include(
     ":ui:ring",
 //    ":ui:material",
     ":ui:bootstrap",
-//    ":ui:compose",
+    ":ui:compose",
     ":visionforge-core",
     ":visionforge-solid",
 //    ":visionforge-fx",

ui/compose/build.gradle.kts

@@ -0,0 +1,41 @@
+
+plugins {
+    id("space.kscience.gradle.mpp")
+    id("org.jetbrains.compose") version "1.5.10"
+//    id("com.android.library")
+}
+
+kscience{
+    jvm()
+    js()
+//    wasm()
+}
+
+kotlin {
+//    android()
+    sourceSets {
+        val commonMain by getting {
+            dependencies {
+
+            }
+        }
+
+        val jvmMain by getting {
+            dependencies {
+                api(compose.runtime)
+                api(compose.foundation)
+                api(compose.material)
+                api(compose.preview)
+            }
+        }
+
+        val jsMain by getting{
+            dependencies {
+                api(compose.html.core)
+                api("app.softwork:bootstrap-compose:0.1.15")
+                api("app.softwork:bootstrap-compose-icons:0.1.15")
+                api(projects.visionforge.visionforgeThreejs)
+            }
+        }
+    }
+}

ui/compose/src/jsMain/kotlin/space/kscience/visionforge/compose/MetaViewer.kt

@@ -0,0 +1,87 @@
+package space.kscience.visionforge.compose
+
+import androidx.compose.runtime.*
+import org.jetbrains.compose.web.css.AlignItems
+import org.jetbrains.compose.web.css.alignItems
+import org.jetbrains.compose.web.dom.A
+import org.jetbrains.compose.web.dom.Div
+import org.jetbrains.compose.web.dom.Span
+import org.jetbrains.compose.web.dom.Text
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.descriptors.MetaDescriptor
+import space.kscience.dataforge.meta.descriptors.get
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.isLeaf
+import space.kscience.dataforge.names.Name
+import space.kscience.dataforge.names.NameToken
+import space.kscience.dataforge.names.lastOrNull
+import space.kscience.dataforge.names.plus
+
+
+@Composable
+private fun MetaViewerItem(root: Meta, name: Name, rootDescriptor: MetaDescriptor? = null) {
+    var expanded: Boolean by remember { mutableStateOf(true) }
+    val item: Meta? = root[name]
+    val descriptorItem: MetaDescriptor? = rootDescriptor?.get(name)
+    val actualValue = item?.value ?: descriptorItem?.defaultValue
+    val actualMeta = item ?: descriptorItem?.defaultNode
+
+    val token = name.lastOrNull()?.toString() ?: ""
+
+    FlexRow(attrs = {
+        classes("metaItem")
+        style {
+            alignItems(AlignItems.Center)
+        }
+    }) {
+        if (actualMeta?.isLeaf == false) {
+            Span({
+                classes(TreeStyles.treeCaret)
+                if (expanded) {
+                    classes(TreeStyles.treeCaretDown)
+                }
+                onClick { expanded = !expanded }
+            })
+        }
+
+        Span({
+            classes(TreeStyles.treeLabel)
+            if (item == null) {
+                classes(TreeStyles.treeLabelInactive)
+            }
+        }) {
+            Text(token)
+        }
+
+        Div {
+            A {
+                Text(actualValue.toString())
+            }
+        }
+    }
+    if (expanded) {
+        FlexColumn({
+            classes(TreeStyles.tree)
+        }) {
+            val keys = buildSet {
+                descriptorItem?.children?.keys?.forEach {
+                    add(NameToken(it))
+                }
+                actualMeta!!.items.keys.let { addAll(it) }
+            }
+
+            keys.filter { !it.body.startsWith("@") }.forEach { token ->
+                Div({
+                    classes(TreeStyles.treeItem)
+                }) {
+                    MetaViewerItem(root, name + token, rootDescriptor)
+                }
+            }
+        }
+    }
+}
+
+@Composable
+public fun MetaViewer(meta: Meta, descriptor: MetaDescriptor? = null) {
+    MetaViewerItem(meta, Name.EMPTY, descriptor)
+}

ui/compose/src/jsMain/kotlin/space/kscience/visionforge/compose/PropertyEditor.kt

@@ -0,0 +1,189 @@
+package space.kscience.visionforge.compose
+
+import androidx.compose.runtime.*
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.launch
+import org.jetbrains.compose.web.attributes.disabled
+import org.jetbrains.compose.web.css.AlignItems
+import org.jetbrains.compose.web.css.alignItems
+import org.jetbrains.compose.web.css.px
+import org.jetbrains.compose.web.css.width
+import org.jetbrains.compose.web.dom.Button
+import org.jetbrains.compose.web.dom.Div
+import org.jetbrains.compose.web.dom.Span
+import org.jetbrains.compose.web.dom.Text
+import space.kscience.dataforge.meta.MutableMeta
+import space.kscience.dataforge.meta.ObservableMutableMeta
+import space.kscience.dataforge.meta.descriptors.MetaDescriptor
+import space.kscience.dataforge.meta.descriptors.ValueRequirement
+import space.kscience.dataforge.meta.descriptors.get
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.remove
+import space.kscience.dataforge.names.Name
+import space.kscience.dataforge.names.NameToken
+import space.kscience.dataforge.names.isEmpty
+import space.kscience.dataforge.names.lastOrNull
+import space.kscience.visionforge.hidden
+
+
+/**
+ * The display state of a property
+ */
+public sealed class EditorPropertyState {
+    public object Defined : EditorPropertyState()
+    public class Default(public val source: String = "unknown") : EditorPropertyState()
+    public object Undefined : EditorPropertyState()
+
+}
+
+/**
+ * @param rootDescriptor Full path to the displayed node in [meta]. Could be empty
+ */
+@Composable
+private fun PropertyEditorItem(
+    /**
+     * Root config object - always non-null
+     */
+    meta: MutableMeta,
+    getPropertyState: (Name) -> EditorPropertyState,
+    scope: CoroutineScope,
+    updates: Flow<Name>,
+    name: Name,
+    rootDescriptor: MetaDescriptor?,
+    initialExpanded: Boolean? = null,
+) {
+    var expanded: Boolean by remember { mutableStateOf(initialExpanded ?: true) }
+    val descriptor: MetaDescriptor? = remember(rootDescriptor, name) { rootDescriptor?.get(name) }
+    var property: MutableMeta by remember { mutableStateOf(meta.getOrCreate(name)) }
+    var editorPropertyState: EditorPropertyState by remember { mutableStateOf(getPropertyState(name)) }
+
+
+    val keys = remember(descriptor) {
+        buildSet {
+            descriptor?.children?.filterNot {
+                it.key.startsWith("@") || it.value.hidden
+            }?.forEach {
+                add(NameToken(it.key))
+            }
+            //ownProperty?.items?.keys?.filterNot { it.body.startsWith("@") }?.let { addAll(it) }
+        }
+    }
+
+    val token = name.lastOrNull()?.toString() ?: "Properties"
+
+    fun update() {
+        property = meta.getOrCreate(name)
+        editorPropertyState = getPropertyState(name)
+    }
+
+    LaunchedEffect(meta) {
+        updates.collect { updatedName ->
+            if (updatedName == name) {
+                update()
+            }
+        }
+    }
+
+    FlexRow({
+        style {
+            alignItems(AlignItems.Center)
+        }
+    }) {
+        if (keys.isNotEmpty()) {
+            Span({
+                classes(TreeStyles.treeCaret)
+                if (expanded) {
+                    classes(TreeStyles.treeCaretDown)
+                }
+                onClick { expanded = !expanded }
+            })
+        }
+        Span({
+            classes(TreeStyles.treeLabel)
+            if (editorPropertyState != EditorPropertyState.Defined) {
+                classes(TreeStyles.treeLabelInactive)
+            }
+        }) {
+            Text(token)
+        }
+
+        if (!name.isEmpty() && descriptor?.valueRequirement != ValueRequirement.ABSENT) {
+            Div({
+                style {
+                    width(160.px)
+                    marginAll(1.px, 5.px)
+                }
+            }) {
+                ValueChooser(descriptor, editorPropertyState, property.value) {
+                    property.value = it
+                    editorPropertyState = getPropertyState(name)
+                }
+            }
+
+            Button({
+                classes(TreeStyles.propertyEditorButton)
+                if (editorPropertyState != EditorPropertyState.Defined) {
+                    disabled()
+                } else {
+                    onClick {
+                        meta.remove(name)
+                        update()
+                    }
+                }
+            }) {
+                Text("\u00D7")
+            }
+        }
+    }
+    if (expanded) {
+        FlexColumn({
+            classes(TreeStyles.tree)
+        }) {
+            keys.forEach { token ->
+                Div({
+                    classes(TreeStyles.treeItem)
+                }) {
+                    PropertyEditorItem(meta, getPropertyState, scope, updates, name, descriptor, expanded)
+                }
+            }
+        }
+    }
+}
+
+@Composable
+public fun PropertyEditor(
+    scope: CoroutineScope,
+    properties: ObservableMutableMeta,
+    descriptor: MetaDescriptor? = null,
+    expanded: Boolean? = null,
+) {
+    PropertyEditorItem(
+        meta = properties,
+        getPropertyState = { name ->
+            if (properties[name] != null) {
+                EditorPropertyState.Defined
+            } else if (descriptor?.get(name)?.defaultValue != null) {
+                EditorPropertyState.Default("descriptor")
+            } else {
+                EditorPropertyState.Undefined
+            }
+        },
+        scope = scope,
+        updates = callbackFlow {
+            properties.onChange(scope) { name ->
+                scope.launch {
+                    send(name)
+                }
+            }
+
+            invokeOnClose {
+                properties.removeListener(scope)
+            }
+        },
+        name = Name.EMPTY,
+        rootDescriptor = descriptor,
+        initialExpanded = expanded,
+    )
+}

ui/compose/src/jsMain/kotlin/space/kscience/visionforge/compose/ThreeCanvas.kt

@@ -0,0 +1,52 @@
+package space.kscience.visionforge.compose
+
+import androidx.compose.runtime.*
+import kotlinx.dom.clear
+import org.jetbrains.compose.web.css.*
+import org.jetbrains.compose.web.dom.Div
+import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.request
+import space.kscience.dataforge.names.Name
+import space.kscience.visionforge.solid.Solid
+import space.kscience.visionforge.solid.specifications.Canvas3DOptions
+import space.kscience.visionforge.solid.three.ThreeCanvas
+import space.kscience.visionforge.solid.three.ThreePlugin
+
+@Composable
+public fun ThreeCanvas(
+    context: Context,
+    options: Canvas3DOptions?,
+    solid: Solid?,
+    selected: Name?,
+) {
+
+    val three: ThreePlugin by derivedStateOf { context.request(ThreePlugin) }
+
+    Div({
+        style {
+            maxWidth(100.vw)
+            maxHeight(100.vh)
+            width(100.percent)
+            height(100.percent)
+        }
+    }) {
+        var canvas: ThreeCanvas? = null
+        DisposableEffect(options) {
+            canvas = ThreeCanvas(three, scopeElement, options ?: Canvas3DOptions())
+            onDispose {
+                scopeElement.clear()
+                canvas = null
+            }
+        }
+        LaunchedEffect(solid) {
+            if (solid != null) {
+                canvas?.render(solid)
+            } else {
+                canvas?.clear()
+            }
+        }
+        LaunchedEffect(selected) {
+            canvas?.select(selected)
+        }
+    }
+}

ui/compose/src/jsMain/kotlin/space/kscience/visionforge/compose/ThreeJS.kt

@@ -1,11 +0,0 @@
-package space.kscience.visionforge.compose
-
-import androidx.compose.material.Surface
-import androidx.compose.runtime.Composable
-
-@Composable
-public fun ThreeJs(){
-    Surface {
-        
-    }
-}

ui/compose/src/jsMain/kotlin/space/kscience/visionforge/compose/TreeStyles.kt

@@ -0,0 +1,94 @@
+package space.kscience.visionforge.compose
+
+import org.jetbrains.compose.web.ExperimentalComposeWebApi
+import org.jetbrains.compose.web.css.*
+
+
+@OptIn(ExperimentalComposeWebApi::class)
+public object TreeStyles : StyleSheet() {
+    /**
+     * Remove default bullets
+     */
+    public val tree: String by style {
+        paddingLeft(5.px)
+        marginLeft(0.px)
+        listStyleType("none")
+    }
+
+    /**
+     * Style the caret/arrow
+     */
+    public val treeCaret: String by style {
+        cursor("pointer")
+        userSelect(UserSelect.none)
+        /* Create the caret/arrow with a unicode, and style it */
+        before {
+            content("\u25B6")
+            color(Color.black)
+            display(DisplayStyle.InlineBlock)
+            marginRight(6.px)
+        }
+    }
+
+    /**
+     *  Rotate the caret/arrow icon when clicked on (using JavaScript)
+     */
+    public val treeCaretDown: String by style {
+        before {
+            content("\u25B6")
+            color(Color.black)
+            display(DisplayStyle.InlineBlock)
+            marginRight(6.px)
+            transform { rotate(90.deg) }
+        }
+    }
+
+    public val treeItem: String by style {
+        alignItems(AlignItems.Center)
+        paddingLeft(10.px)
+        border {
+            left {
+                width(1.px)
+                color(Color.lightgray)
+                style = LineStyle.Dashed
+            }
+        }
+    }
+
+    public val treeLabel: String by style {
+        border(style = LineStyle.None)
+        paddingAll(left = 4.pt, right = 4.pt)
+        textAlign("left")
+        flex(1)
+    }
+
+    public val treeLabelInactive: String by style {
+        color(Color.lightgray)
+    }
+
+    public val treeLabelSelected: String by style {
+        backgroundColor(Color.lightblue)
+    }
+
+    public val propertyEditorButton: String by style {
+        width(24.px)
+        alignSelf(AlignSelf.Stretch)
+        marginAll(1.px, 5.px)
+        backgroundColor(Color.white)
+        border{
+            style(LineStyle.Solid)
+        }
+        borderRadius(2.px)
+        textAlign("center")
+        textDecoration("none")
+        cursor("pointer")
+        disabled {
+            cursor("auto")
+            border{
+                style(LineStyle.Dashed)
+            }
+            color(Color.lightgray)
+        }
+    }
+
+}

ui/compose/src/jsMain/kotlin/space/kscience/visionforge/compose/css.kt

@@ -0,0 +1,35 @@
+package space.kscience.visionforge.compose
+
+import org.jetbrains.compose.web.css.*
+
+public enum class UserSelect {
+    inherit, initial, revert, revertLayer, unset,
+
+    none, auto, text, contain, all;
+}
+
+public fun StyleScope.userSelect(value: UserSelect) {
+    property("user-select", value.name)
+}
+
+public fun StyleScope.content(value: String) {
+    property("content", "'$value'")
+}
+
+public fun StyleScope.paddingAll(
+    top: CSSNumeric = 0.pt,
+    right: CSSNumeric = top,
+    bottom: CSSNumeric = top,
+    left: CSSNumeric = right,
+) {
+    padding(top, right, bottom, left)
+}
+
+public fun StyleScope.marginAll(
+    top: CSSNumeric = 0.pt,
+    right: CSSNumeric = top,
+    bottom: CSSNumeric = top,
+    left: CSSNumeric = right,
+) {
+    margin(top, right, bottom, left)
+}

ui/compose/src/jsMain/kotlin/space/kscience/visionforge/compose/layouts.kt

@@ -0,0 +1,41 @@
+package space.kscience.visionforge.compose
+
+import androidx.compose.runtime.Composable
+import org.jetbrains.compose.web.css.DisplayStyle
+import org.jetbrains.compose.web.css.FlexDirection
+import org.jetbrains.compose.web.css.display
+import org.jetbrains.compose.web.css.flexDirection
+import org.jetbrains.compose.web.dom.AttrBuilderContext
+import org.jetbrains.compose.web.dom.Div
+import org.jetbrains.compose.web.dom.ElementScope
+import org.w3c.dom.HTMLDivElement
+
+@Composable
+public fun FlexColumn(
+    attrs: AttrBuilderContext<HTMLDivElement>? = null,
+    content: @Composable ElementScope<HTMLDivElement>.() -> Unit,
+): Unit = Div(
+    attrs = {
+        style {
+            display(DisplayStyle.Flex)
+            flexDirection(FlexDirection.Column)
+        }
+        attrs?.invoke(this)
+    },
+    content
+)
+
+@Composable
+public fun FlexRow(
+    attrs: AttrBuilderContext<HTMLDivElement>? = null,
+    content: @Composable ElementScope<HTMLDivElement>.() -> Unit,
+): Unit = Div(
+    attrs = {
+        style {
+            display(DisplayStyle.Flex)
+            flexDirection(FlexDirection.Row)
+        }
+        attrs?.invoke(this)
+    },
+    content
+)

ui/compose/src/jsMain/kotlin/space/kscience/visionforge/compose/valueChooser.kt

@@ -0,0 +1,268 @@
+@file:Suppress("UNUSED_PARAMETER")
+
+package space.kscience.visionforge.compose
+
+import androidx.compose.runtime.*
+import org.jetbrains.compose.web.attributes.*
+import org.jetbrains.compose.web.css.percent
+import org.jetbrains.compose.web.css.px
+import org.jetbrains.compose.web.css.width
+import org.jetbrains.compose.web.dom.Input
+import org.jetbrains.compose.web.dom.Option
+import org.jetbrains.compose.web.dom.Select
+import org.jetbrains.compose.web.dom.Text
+import org.w3c.dom.HTMLInputElement
+import org.w3c.dom.HTMLOptionElement
+import org.w3c.dom.asList
+import space.kscience.dataforge.meta.*
+import space.kscience.dataforge.meta.descriptors.MetaDescriptor
+import space.kscience.dataforge.meta.descriptors.ValueRequirement
+import space.kscience.dataforge.meta.descriptors.allowedValues
+import space.kscience.visionforge.Colors
+import space.kscience.visionforge.widgetType
+import three.math.Color
+
+
+@Composable
+public fun StringValueChooser(
+    descriptor: MetaDescriptor?,
+    state: EditorPropertyState,
+    value: Value?,
+    onValueChange: (Value?) -> Unit,
+) {
+    var stringValue by remember { mutableStateOf(value?.string ?: "") }
+    Input(type = InputType.Text) {
+        style {
+            width(100.percent)
+        }
+        value(stringValue)
+        onKeyDown { event ->
+            if (event.type == "keydown" && event.asDynamic().key == "Enter") {
+                stringValue = (event.target as HTMLInputElement).value
+                onValueChange(stringValue.asValue())
+            }
+        }
+        onChange {
+            stringValue = it.target.value
+        }
+    }
+}
+
+
+@Composable
+public fun BooleanValueChooser(
+    descriptor: MetaDescriptor?,
+    state: EditorPropertyState,
+    value: Value?,
+    onValueChange: (Value?) -> Unit,
+) {
+    Input(type = InputType.Checkbox) {
+        style {
+            width(100.percent)
+        }
+        //this.attributes["indeterminate"] = (props.item == null).toString()
+        checked(value?.boolean ?: false)
+
+        onChange {
+            val newValue = it.target.checked
+            onValueChange(newValue.asValue())
+        }
+    }
+}
+
+@Composable
+public fun NumberValueChooser(
+    descriptor: MetaDescriptor?,
+    state: EditorPropertyState,
+    value: Value?,
+    onValueChange: (Value?) -> Unit,
+) {
+    var innerValue by remember { mutableStateOf(value?.string ?: "") }
+    Input(type = InputType.Number) {
+        style {
+            width(100.percent)
+        }
+        value(innerValue)
+        onKeyDown { event ->
+            if (event.type == "keydown" && event.asDynamic().key == "Enter") {
+                innerValue = (event.target as HTMLInputElement).value
+                val number = innerValue.toDoubleOrNull()
+                if (number == null) {
+                    console.error("The input value $innerValue is not a number")
+                } else {
+                    onValueChange(number.asValue())
+                }
+            }
+        }
+        onChange {
+            innerValue = it.target.value
+        }
+        descriptor?.attributes?.get("step").number?.let {
+            step(it)
+        }
+        descriptor?.attributes?.get("min").string?.let {
+            min(it)
+        }
+        descriptor?.attributes?.get("max").string?.let {
+            max(it)
+        }
+    }
+}
+
+
+@Composable
+public fun ComboValueChooser(
+    descriptor: MetaDescriptor?,
+    state: EditorPropertyState,
+    value: Value?,
+    onValueChange: (Value?) -> Unit,
+) {
+    var selected by remember { mutableStateOf(value?.string ?: "") }
+    Select({
+        style {
+            width(100.percent)
+        }
+        onChange {
+            selected = it.target.value
+            onValueChange(selected.asValue())
+        }
+    }, multiple = false) {
+        descriptor?.allowedValues?.forEach {
+            Option(it.string, { if (it == value) selected() }) {
+                Text(it.string)
+            }
+        }
+
+    }
+}
+
+@Composable
+public fun ColorValueChooser(
+    descriptor: MetaDescriptor?,
+    state: EditorPropertyState,
+    value: Value?,
+    onValueChange: (Value?) -> Unit,
+) {
+    Input(type = InputType.Color) {
+        style {
+            width(100.percent)
+            marginAll(0.px)
+        }
+        value(
+            value?.let { value ->
+                if (value.type == ValueType.NUMBER) Colors.rgbToString(value.int)
+                else "#" + Color(value.string).getHexString()
+            } ?: "#000000"
+        )
+        onChange {
+            onValueChange(it.target.value.asValue())
+        }
+    }
+}
+
+
+@Composable
+public fun MultiSelectChooser(
+    descriptor: MetaDescriptor?,
+    state: EditorPropertyState,
+    value: Value?,
+    onValueChange: (Value?) -> Unit,
+) {
+    Select({
+        onChange { event ->
+            val newSelected = event.target.selectedOptions.asList()
+                .map { (it as HTMLOptionElement).value.asValue() }
+            onValueChange(newSelected.asValue())
+
+        }
+    }, multiple = true) {
+        descriptor?.allowedValues?.forEach { optionValue ->
+            Option(optionValue.string, {
+                value?.list?.let { if (optionValue in it) selected() }
+            }) {
+                Text(optionValue.string)
+            }
+        }
+
+    }
+}
+
+@Composable
+public fun RangeValueChooser(
+    descriptor: MetaDescriptor?,
+    state: EditorPropertyState,
+    value: Value?,
+    onValueChange: (Value?) -> Unit,
+) {
+    var innerValue by remember { mutableStateOf(value?.double) }
+    var rangeDisabled: Boolean by remember { mutableStateOf(state != EditorPropertyState.Defined) }
+
+
+    FlexRow {
+        if (descriptor?.valueRequirement != ValueRequirement.REQUIRED) {
+            Input(type = InputType.Checkbox) {
+                if (!rangeDisabled) defaultChecked()
+
+                onChange {
+                    val checkBoxValue = it.target.checked
+                    rangeDisabled = !checkBoxValue
+                    onValueChange(
+                        if (!checkBoxValue) {
+                            null
+                        } else {
+                            innerValue?.asValue()
+                        }
+                    )
+                }
+            }
+        }
+    }
+
+    Input(type = InputType.Range) {
+        style {
+            width(100.percent)
+        }
+        if (rangeDisabled) disabled()
+        value(innerValue?.toString() ?: "")
+        onChange {
+            val newValue = it.target.value
+            onValueChange(newValue.toDoubleOrNull()?.asValue())
+            innerValue = newValue.toDoubleOrNull()
+        }
+        descriptor?.attributes?.get("min").string?.let {
+            min(it)
+        }
+        descriptor?.attributes?.get("max").string?.let {
+            max(it)
+        }
+        descriptor?.attributes?.get("step").number?.let {
+            step(it)
+        }
+
+    }
+
+}
+
+@Composable
+public fun ValueChooser(
+    descriptor: MetaDescriptor?,
+    state: EditorPropertyState,
+    value: Value?,
+    onValueChange: (Value?) -> Unit,
+) {
+    val rawInput by remember { mutableStateOf(false) }
+
+    val type = descriptor?.valueTypes?.firstOrNull()
+
+    when {
+        rawInput -> StringValueChooser(descriptor, state, value, onValueChange)
+        descriptor?.widgetType == "color" -> ColorValueChooser(descriptor, state, value, onValueChange)
+        descriptor?.widgetType == "multiSelect" -> MultiSelectChooser(descriptor, state, value, onValueChange)
+        descriptor?.widgetType == "range" -> RangeValueChooser(descriptor, state, value, onValueChange)
+        type == ValueType.BOOLEAN -> BooleanValueChooser(descriptor, state, value, onValueChange)
+        type == ValueType.NUMBER -> NumberValueChooser(descriptor, state, value, onValueChange)
+        descriptor?.allowedValues?.isNotEmpty() ?: false -> ComboValueChooser(descriptor, state, value, onValueChange)
+        //TODO handle lists
+        else -> StringValueChooser(descriptor, state, value, onValueChange)
+    }
+}

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/Vision.kt

@@ -4,6 +4,7 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
+import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.asValue
 import space.kscience.dataforge.meta.boolean
 import space.kscience.dataforge.meta.descriptors.Described
@@ -36,7 +37,7 @@ public interface Vision : Described {
     /**
      * Update this vision using a dif represented by [VisionChange].
      */
-    public fun update(change: VisionChange) {
+    public fun receiveChange(change: VisionChange) {
         if (change.children?.isNotEmpty() == true) {
             error("Vision is not a group")
         }
@@ -45,6 +46,20 @@ public interface Vision : Described {
         }
     }
 
+    public fun onMetaEvent(meta: Meta){
+        //Do nothing by default
+    }
+
+    /**
+     * Receive and process a generic [VisionEvent].
+     */
+    public fun receiveEvent(event: VisionEvent) {
+        when (event) {
+            is VisionChange -> receiveChange(event)
+            is VisionMetaEvent -> onMetaEvent(event.meta)
+        }
+    }
+
     override val descriptor: MetaDescriptor?
 
     public companion object {

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionChange.kt

@@ -63,8 +63,7 @@ public data class VisionChange(
     public val vision: Vision? = null,
     public val properties: Meta? = null,
     public val children: Map<Name, VisionChange>? = null,
-)
+) : VisionEvent
-
 
 /**
  * An update for a [Vision]

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionClient.kt

@@ -13,7 +13,7 @@ import space.kscience.dataforge.names.parseAsName
 public interface VisionClient: Plugin {
     public val visionManager: VisionManager
 
-    public suspend fun sendEvent(event: VisionEvent)
+    public suspend fun sendEvent(targetName: Name, event: VisionEvent)
 
     public fun notifyPropertyChanged(visionName: Name, propertyName: Name, item: Meta?)
 }
@@ -35,8 +35,8 @@ public fun VisionClient.notifyPropertyChanged(visionName: Name, propertyName: St
     notifyPropertyChanged(visionName, propertyName.parseAsName(true), Meta(item))
 }
 
-public fun VisionClient.sendEvent(visionName: Name, event: MetaRepr): Unit {
+public fun VisionClient.sendEvent(targetName: Name, payload: MetaRepr): Unit {
     context.launch {
-        sendEvent(VisionMetaEvent(visionName, event.toMeta()))
+        sendEvent(targetName, VisionMetaEvent(payload.toMeta()))
     }
 }

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionEvent.kt

@@ -11,10 +11,8 @@ import space.kscience.dataforge.names.Name
  * An event propagated from client to a server
  */
 @Serializable
-public sealed interface VisionEvent{
+public sealed interface VisionEvent {
-    public val targetName: Name
+    public companion object {
-
-    public companion object{
         public val CLICK_EVENT_KEY: Name get() = Name.of("events", "click", "payload")
     }
 }
@@ -24,17 +22,14 @@ public sealed interface VisionEvent{
  */
 @Serializable
 @SerialName("meta")
-public class VisionMetaEvent(override val targetName: Name, public val meta: Meta) : VisionEvent
+public class VisionMetaEvent(public val meta: Meta) : VisionEvent
 
-@Serializable
-@SerialName("change")
-public class VisionChangeEvent(override val targetName: Name, public val change: VisionChange) : VisionEvent
 
 public val Vision.Companion.CLICK_EVENT_KEY: Name get() = Name.of("events", "click", "payload")
 
 /**
  * Set the payload to be sent to server on click
  */
-public fun Vision.onClickPayload(payloadBuilder: MutableMeta.() -> Unit){
+public fun Vision.onClickPayload(payloadBuilder: MutableMeta.() -> Unit) {
     properties[VisionEvent.CLICK_EVENT_KEY] = Meta(payloadBuilder)
 }

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionGroup.kt

@@ -17,12 +17,12 @@ import space.kscience.visionforge.Vision.Companion.STYLE_KEY
 public interface VisionGroup : Vision {
     public val children: VisionChildren
 
-    override fun update(change: VisionChange) {
+    override fun receiveChange(change: VisionChange) {
         change.children?.forEach { (name, change) ->
             if (change.vision != null || change.vision == NullVision) {
                 error("VisionGroup is read-only")
             } else {
-                children.getChild(name)?.update(change)
+                children.getChild(name)?.receiveChange(change)
             }
         }
         change.properties?.let {
@@ -37,12 +37,12 @@ public interface MutableVisionGroup : VisionGroup {
 
     public fun createGroup(): MutableVisionGroup
 
-    override fun update(change: VisionChange) {
+    override fun receiveChange(change: VisionChange) {
         change.children?.forEach { (name, change) ->
             when {
                 change.vision == NullVision -> children.setChild(name, null)
                 change.vision != null -> children.setChild(name, change.vision)
-                else -> children.getChild(name)?.update(change)
+                else -> children.getChild(name)?.receiveChange(change)
             }
         }
         change.properties?.let {

visionforge-core/src/jsMain/kotlin/space/kscience/visionforge/JsVisionClient.kt

@@ -81,15 +81,14 @@ public class JsVisionClient : AbstractPlugin(), VisionClient {
     }
 
     private val eventCollector by lazy {
-        MutableSharedFlow<VisionEvent>(meta["feedback.eventCache"].int ?: 100)
+        MutableSharedFlow<Pair<Name, VisionEvent>>(meta["feedback.eventCache"].int ?: 100)
     }
 
-
     /**
      * Send a custom feedback event
      */
-    override suspend fun sendEvent(event: VisionEvent) {
+    override suspend fun sendEvent(targetName: Name, event: VisionEvent) {
-        eventCollector.emit(event)
+        eventCollector.emit(targetName to event)
     }
 
     private fun renderVision(element: Element, name: Name, vision: Vision, outputMeta: Meta) {
@@ -120,19 +119,21 @@ public class JsVisionClient : AbstractPlugin(), VisionClient {
                 onmessage = { messageEvent ->
                     val stringData: String? = messageEvent.data as? String
                     if (stringData != null) {
-                        val change: VisionChange = visionManager.jsonFormat.decodeFromString(
+                        val event: VisionEvent = visionManager.jsonFormat.decodeFromString(
-                            VisionChange.serializer(),
+                            VisionEvent.serializer(),
                             stringData
                         )
 
                         // If change contains root vision replacement, do it
-                        change.vision?.let { vision ->
+                        if(event is VisionChange) {
-                            renderVision(element, name, vision, outputMeta)
+                            event.vision?.let { vision ->
+                                renderVision(element, name, vision, outputMeta)
+                            }
                         }
 
-                        logger.debug { "Got update $change for output with name $name" }
+                        logger.debug { "Got $event for output with name $name" }
                         if (vision == null) error("Can't update vision because it is not loaded.")
-                        vision.update(change)
+                        vision.receiveEvent(event)
                     } else {
                         logger.error { "WebSocket message data is not a string" }
                     }
@@ -147,8 +148,8 @@ public class JsVisionClient : AbstractPlugin(), VisionClient {
 
                 onopen = {
                     feedbackJob = visionManager.context.launch {
-                        eventCollector.filter { it.targetName == name }.onEach {
+                        eventCollector.filter { it.first == name }.onEach {
-                            send(visionManager.jsonFormat.encodeToString(VisionEvent.serializer(), it))
+                            send(visionManager.jsonFormat.encodeToString(VisionEvent.serializer(), it.second))
                         }.launchIn(this)
 
                         while (isActive) {
@@ -156,7 +157,7 @@ public class JsVisionClient : AbstractPlugin(), VisionClient {
                             val change = changeCollector[name] ?: continue
                             if (!change.isEmpty()) {
                                 mutex.withLock {
-                                    eventCollector.emit(VisionChangeEvent(name, change.deepCopy(visionManager)))
+                                    eventCollector.emit(name to change.deepCopy(visionManager))
                                     change.reset()
                                 }
                             }

visionforge-server/src/main/kotlin/space/kscience/visionforge/server/VisionServer.kt

@@ -14,6 +14,7 @@ import io.ktor.server.util.*
 import io.ktor.server.websocket.*
 import io.ktor.util.pipeline.*
 import io.ktor.websocket.*
+import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.launch
@@ -71,14 +72,11 @@ public class VisionRoute(
 /**
  * Serve visions in a given [route] without providing a page template.
  * [visions] could be changed during the service.
+ *
+ * @return a [Flow] of backward events, including vision change events
  */
 public fun Application.serveVisionData(
     configuration: VisionRoute,
-    onEvent: suspend Vision.(VisionEvent) -> Unit = { event ->
-        if (event is VisionChangeEvent) {
-            update(event.change)
-        }
-    },
     resolveVision: (Name) -> Vision?,
 ) {
     require(WebSockets)
@@ -102,16 +100,17 @@ public fun Application.serveVisionData(
                         val event = configuration.visionManager.jsonFormat.decodeFromString(
                             VisionEvent.serializer(), data
                         )
-                        vision.onEvent(event)
+
+                        vision.receiveEvent(event)
                     }
                 }
 
                 try {
                     withContext(configuration.context.coroutineContext) {
-                        vision.flowChanges(configuration.updateInterval.milliseconds).onEach { update ->
+                        vision.flowChanges(configuration.updateInterval.milliseconds).onEach { event ->
                             val json = configuration.visionManager.jsonFormat.encodeToString(
-                                VisionChange.serializer(),
+                                VisionEvent.serializer(),
-                                update
+                                event
                             )
                             application.log.debug("Sending update for $name: \n$json")
                             outgoing.send(Frame.Text(json))
@@ -147,6 +146,8 @@ public fun Application.serveVisionData(
 
 /**
  * Serve a page, potentially containing any number of visions at a given [route] with given [header].
+ *
+ * @return a [Flow] containing backward propagated events, including vision change events
  */
 public fun Application.visionPage(
     route: String,
@@ -154,7 +155,7 @@ public fun Application.visionPage(
     headers: Collection<HtmlFragment>,
     connector: EngineConnectorConfig? = null,
     visionFragment: HtmlVisionFragment,
-) {
+){
     require(WebSockets)
 
     val collector: MutableMap<Name, Vision> = mutableMapOf()

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

@@ -34,33 +34,33 @@ public fun Vision.colorProperty(
     ColorAccessor(properties.root(true), propertyName ?: property.name.asName())
 }
 
-public var ColorAccessor?.string: String?
+public var ColorAccessor.string: String?
-    get() = this?.value?.let { if (it == Null) null else it.string }
+    get() = value?.let { if (it == Null) null else it.string }
     set(value) {
-        this?.value = value?.asValue()
+        this.value = value?.asValue()
     }
 
 /**
  * Set [webcolor](https://en.wikipedia.org/wiki/Web_colors) as string
  */
-public operator fun ColorAccessor?.invoke(webColor: String) {
+public operator fun ColorAccessor.invoke(webColor: String) {
-    this?.value = webColor.asValue()
+    value = webColor.asValue()
 }
 
 /**
  * Set color as RGB integer
  */
-public operator fun ColorAccessor?.invoke(rgb: Int) {
+public operator fun ColorAccessor.invoke(rgb: Int) {
-    this?.value = Colors.rgbToString(rgb).asValue()
+    value = Colors.rgbToString(rgb).asValue()
 }
 
 /**
  * Set color as RGB
  */
-public operator fun ColorAccessor?.invoke(r: UByte, g: UByte, b: UByte) {
+public operator fun ColorAccessor.invoke(r: UByte, g: UByte, b: UByte) {
-    this?.value = Colors.rgbToString(r, g, b).asValue()
+    value = Colors.rgbToString(r, g, b).asValue()
 }
 
-public fun ColorAccessor?.clear() {
+public fun ColorAccessor.clear() {
-    this?.value = null
+    value = null
 }

visionforge-solid/src/commonTest/kotlin/space/kscience/visionforge/solid/SolidPropertyTest.kt

@@ -94,7 +94,7 @@ class SolidPropertyTest {
                 }
             }
         }
-        assertEquals("#555555", box?.color.string)
+        assertEquals("#555555", box?.color?.string)
     }
 
     @Test

visionforge-solid/src/commonTest/kotlin/space/kscience/visionforge/solid/SolidReferenceTest.kt

@@ -31,7 +31,7 @@ class SolidReferenceTest {
     fun testReferenceSerialization(){
         val serialized = Solids.jsonForSolids.encodeToJsonElement(groupWithReference)
         val deserialized = Solids.jsonForSolids.decodeFromJsonElement(SolidGroup.serializer(), serialized)
-        assertEquals(groupWithReference.items["test"]?.color.string, deserialized.items["test"]?.color.string)
+        assertEquals(groupWithReference.items["test"]?.color?.string, deserialized.items["test"]?.color?.string)
         assertEquals("blue", (deserialized.children.getChild("test") as Solid).color.string)
     }
 }

visionforge-solid/src/commonTest/kotlin/space/kscience/visionforge/solid/VisionUpdateTest.kt

@@ -28,7 +28,7 @@ internal class VisionUpdateTest {
             propertyChanged("top".asName(), SolidMaterial.MATERIAL_COLOR_KEY, Meta("red".asValue()))
             propertyChanged("origin".asName(), SolidMaterial.MATERIAL_COLOR_KEY, Meta("red".asValue()))
         }
-        targetVision.update(dif)
+        targetVision.receiveChange(dif)
         assertTrue { targetVision.children.getChild("top") is SolidGroup }
         assertEquals("red", (targetVision.children.getChild("origin") as Solid).color.string) // Should work
         assertEquals(

visionforge-tables/build.gradle.kts

@@ -2,7 +2,7 @@ plugins {
     id("space.kscience.gradle.mpp")
 }
 
-val tablesVersion = "0.2.0-dev-4"
+val tablesVersion = "0.2.1"
 
 kscience {
     jvm()
@@ -22,8 +22,8 @@ kscience {
         api("space.kscience:tables-kt:${tablesVersion}")
     }
     dependencies(jsMain) {
-        implementation(npm("tabulator-tables", "5.4.4"))
+        implementation(npm("tabulator-tables", "5.5.2"))
-        implementation(npm("@types/tabulator-tables", "5.4.8"))
+        implementation(npm("@types/tabulator-tables", "5.5.3"))
     }
     useSerialization()
 }