BeyondBoundsLayout.kt
/*
* Copyright 2022 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.focus
import androidx.compose.ui.layout.BeyondBoundsLayout.BeyondBoundsScope
import androidx.compose.ui.layout.BeyondBoundsLayout.LayoutDirection.Companion.Above
import androidx.compose.ui.layout.BeyondBoundsLayout.LayoutDirection.Companion.After
import androidx.compose.ui.layout.BeyondBoundsLayout.LayoutDirection.Companion.Before
import androidx.compose.ui.layout.BeyondBoundsLayout.LayoutDirection.Companion.Below
import androidx.compose.ui.layout.BeyondBoundsLayout.LayoutDirection.Companion.Left
import androidx.compose.ui.layout.BeyondBoundsLayout.LayoutDirection.Companion.Right
internal fun <T> FocusModifier.searchBeyondBounds(
direction: FocusDirection,
block: BeyondBoundsScope.() -> T?
): T? {
return beyondBoundsLayoutParent?.layout(
direction = when (direction) {
FocusDirection.Up -> Above
FocusDirection.Down -> Below
FocusDirection.Left -> Left
FocusDirection.Right -> Right
FocusDirection.Next -> After
FocusDirection.Previous -> Before
else -> error("Unsupported direction for beyond bounds layout")
},
block = block
)
}