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189
ui/compose/src/jsMain/kotlin/space/kscience/visionforge/compose/PropertyEditor.kt
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| @@ -0,0 +1,189 @@ | ||
| package space.kscience.visionforge.compose | ||
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| 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 | ||
|
|
||
|
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| /** | ||
| * 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() | ||
|
|
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| } | ||
|
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| /** | ||
| * @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)) } | ||
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| 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) } | ||
| } | ||
| } | ||
|
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| val token = name.lastOrNull()?.toString() ?: "Properties" | ||
|
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| fun update() { | ||
| property = meta.getOrCreate(name) | ||
| editorPropertyState = getPropertyState(name) | ||
| } | ||
|
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| LaunchedEffect(meta) { | ||
| updates.collect { updatedName -> | ||
| if (updatedName == name) { | ||
| update() | ||
| } | ||
| } | ||
| } | ||
|
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| 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) | ||
| } | ||
|
|
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| 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) | ||
| } | ||
| } | ||
|
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| 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) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| @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) | ||
| } | ||
| } | ||
|
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| invokeOnClose { | ||
| properties.removeListener(scope) | ||
| } | ||
| }, | ||
| name = Name.EMPTY, | ||
| rootDescriptor = descriptor, | ||
| initialExpanded = expanded, | ||
| ) | ||
| } |
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