commonMain.jetbrains.datalore.base.observable.children.SimpleComposite.kt Maven / Gradle / Ivy

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/*
 * Copyright (c) 2020. JetBrains s.r.o.
 * Use of this source code is governed by the MIT license that can be found in the LICENSE file.
 */

package jetbrains.datalore.base.observable.children

import jetbrains.datalore.base.observable.property.DelayedValueProperty
import kotlin.js.JsName

open class SimpleComposite {
    private val myParent = DelayedValueProperty()
    private var myPositionData: PositionData? = null

    val position: Position
        get() {
            if (myPositionData == null) {
                throw IllegalStateException()
            }
            return myPositionData!!.get()
        }

    fun removeFromParent() {
        if (myPositionData == null) return
        myPositionData!!.remove()
    }

    @JsName("parentProperty")   // `parent` clashes with HasParent.parent
    fun parent(): DelayedValueProperty {
        return myParent
    }

    fun setPositionData(positionData: PositionData?) {
        myPositionData = positionData
    }
}