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/*
* Copyright 2018 Allan Wang
*
* 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 ca.allanwang.kau.adapters
import com.mikepenz.fastadapter.FastAdapter
import com.mikepenz.fastadapter.GenericItem
import com.mikepenz.fastadapter.IAdapter
import com.mikepenz.fastadapter.select.SelectExtension
/**
* Created by Allan Wang on 2017-11-08.
*/
/**
* Add kotlin's generic syntax to better support out types
*/
fun <Item : GenericItem> fastAdapter(vararg adapter: IAdapter<out Item>): FastAdapter<Item> =
FastAdapter.with(adapter.toList())
/**
* Returns selection size, or -1 if selection is disabled
*/
inline val <Item : GenericItem> IAdapter<Item>.selectionSize: Int
get() = fastAdapter?.getExtension<SelectExtension<Item>>()?.selections?.size ?: -1
inline val <Item : GenericItem> IAdapter<Item>.selectedItems: Set<Item>
get() = fastAdapter?.getExtension<SelectExtension<Item>>()?.selectedItems ?: emptySet()
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