<template>
	<!-- #ifndef APP-NVUE -->
	<view class="uni-list uni-border-top-bottom">
		<view v-if="border" class="uni-list--border-top"></view>
		<slot />
		<view v-if="border" class="uni-list--border-bottom"></view>
	</view>
	<!-- #endif -->
	<!-- #ifdef APP-NVUE -->
	<list class="uni-list" :class="{ 'uni-list--border': border }" :enableBackToTop="enableBackToTop" loadmoreoffset="15"><slot /></list>
	<!-- #endif -->
</template>

<script>
/**
 * List 列表
 * @description 列表组件
 * @tutorial https://ext.dcloud.net.cn/plugin?id=24
 * @property {String} 	border = [true|false] 		标题
 */
export default {
	name: 'uniList',
	'mp-weixin': {
		options: {
			multipleSlots: false
		}
	},
	props: {
		enableBackToTop: {
			type: [Boolean, String],
			default: false
		},
		scrollY: {
			type: [Boolean, String],
			default: false
		},
		border: {
			type: Boolean,
			default: true
		}
	},
	// provide() {
	// 	return {
	// 		list: this
	// 	};
	// },
	created() {
		this.firstChildAppend = false;
	},
	methods: {
		loadMore(e) {
			this.$emit('scrolltolower');
		}
	}
};
</script>
<style lang="scss">
.uni-list {
	/* #ifndef APP-NVUE */
	display: flex;
	/* #endif */
	background-color: $uni-bg-color;
	position: relative;
	flex-direction: column;
}

.uni-list--border {
	position: relative;
	/* #ifdef APP-NVUE */
	border-top-color: $uni-border-color;
	border-top-style: solid;
	border-top-width: 0.5px;
	border-bottom-color: $uni-border-color;
	border-bottom-style: solid;
	border-bottom-width: 0.5px;
	/* #endif */
	z-index: -1;
}

/* #ifndef APP-NVUE */

.uni-list--border-top {
	position: absolute;
	top: 0;
	right: 0;
	left: 0;
	height: 1px;
	-webkit-transform: scaleY(0.5);
	transform: scaleY(0.5);
	background-color: $uni-border-color;
	z-index: 1;
}

.uni-list--border-bottom {
	position: absolute;
	bottom: 0;
	right: 0;
	left: 0;
	height: 1px;
	-webkit-transform: scaleY(0.5);
	transform: scaleY(0.5);
	background-color: $uni-border-color;
}

/* #endif */
</style>