LazyStaggeredGridDsl.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.foundation.lazy.staggeredgrid
import androidx.compose.foundation.ExperimentalFoundationApi
import androidx.compose.runtime.Composable
@DslMarker
internal annotation class LazyStaggeredGridScopeMarker
@ExperimentalFoundationApi
@LazyStaggeredGridScopeMarker
internal sealed interface LazyStaggeredGridScope {
fun items(
count: Int,
key: ((index: Int) -> Any)? = null,
contentType: (index: Int) -> Any? = { null },
itemContent: @Composable LazyStaggeredGridItemScope.(index: Int) -> Unit
)
}
@ExperimentalFoundationApi
internal sealed interface LazyStaggeredGridItemScope
@ExperimentalFoundationApi
internal fun LazyStaggeredGridScope.item(
key: Any? = null,
contentType: Any? = null,
itemContent: @Composable LazyStaggeredGridItemScope.(index: Int) -> Unit
) {
items(
count = 1,
key = key?.let { { it } },
contentType = { contentType },
itemContent = itemContent
)
}
// todo(b/182882362): item DSL for lists/arrays