| /* |
| * 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.ui.core |
| |
| /** |
| * A [Modifier.Element] that provides a [Remeasurement] object associated with the layout node |
| * the modifier is applied to. |
| */ |
| interface RemeasurementModifier : Modifier.Element { |
| /** |
| * This method is executed when the modifier is attached to the layout node. |
| * |
| * @param remeasurement [Remeasurement] object associated with the layout node the modifier is |
| * applied to. |
| */ |
| fun onRemeasurementAvailable(remeasurement: Remeasurement) |
| } |
| |
| /** |
| * This object is associated with a layout node and allows to execute some extra measure/layout |
| * actions which are needed for some complex layouts. In most cases you don't need it as |
| * measuring and layout should be correctly working automatically for most cases. |
| */ |
| interface Remeasurement { |
| /** |
| * Performs the node remeasuring synchronously even if the node was not marked as needs |
| * remeasure before. Useful for cases like when during scrolling you need to re-execute the |
| * measure block to consume the scroll offset and remeasure your children in a blocking way. |
| */ |
| fun forceRemeasure() |
| } |