ParentDataModifier.kt
/*
* Copyright 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.compose.ui.layout
import androidx.compose.ui.Modifier
import androidx.compose.ui.unit.Density
import androidx.compose.ui.internal.JvmDefaultWithCompatibility
/**
* A [Modifier] that provides data to the parent [Layout]. This can be read from within the
* the [Layout] during measurement and positioning, via [IntrinsicMeasurable.parentData].
* The parent data is commonly used to inform the parent how the child [Layout] should be measured
* and positioned.
*/
@JvmDefaultWithCompatibility
interface ParentDataModifier : Modifier.Element {
/**
* Provides a parentData, given the [parentData] already provided through the modifier's chain.
*/
fun Density.modifyParentData(parentData: Any?): Any?
}