<!-- z-paging -->
<!-- github地址:https://github.com/SmileZXLee/uni-z-paging -->
<!-- dcloud地址:https://ext.dcloud.net.cn/plugin?id=3935 -->
<!-- 反馈QQ群：790460711 -->

<!-- 空数据占位view，此组件支持easycom规范，可以在项目中直接引用 -->
<template>
	<view :class="{'zp-container':true,'zp-container-fixed':emptyViewFixed}" :style="[finalEmptyViewStyle]">
		<view :class="{'zp-main':true,'zp-main-fixed':emptyViewFixed}">
			<image v-if="!emptyViewImg.length" class="zp-main-image" :style="[emptyViewImgStyle]" :src="emptyImg"></image>
			<image v-else class="zp-main-image" mode="aspectFit" :style="[emptyViewImgStyle]" :src="emptyViewImg"></image>
			<text class="zp-main-title" :style="[emptyViewTitleStyle]">{{emptyViewText}}</text>
			<text v-if="showEmptyViewReload" class="zp-main-error-btn" :style="[emptyViewReloadStyle]"
				@click="reloadClick">{{emptyViewReloadText}}</text>
		</view>
	</view>
</template>

<script>
	import zStatic from '../z-paging/js/z-paging-static'
	export default {
		data() {
			return {
				base64Empty: zStatic.base64Empty,
				base64Error: zStatic.base64Error
			};
		},
		props: {
			//空数据描述文字
			emptyViewText: {
				type: String,
				default: function() {
					return '没有数据哦~'
				}
			},
			//空数据图片
			emptyViewImg: {
				type: String,
				default: function() {
					return ''
				}
			},
			//是否显示空数据图重新加载按钮
			showEmptyViewReload: {
				type: Boolean,
				default: function() {
					return false
				}
			},
			//空数据点击重新加载文字
			emptyViewReloadText: {
				type: String,
				default: function() {
					return '重新加载'
				}
			},
			//是否是加载失败
			isLoadFailed: {
				type: Boolean,
				default: function() {
					return false
				}
			},
			//空数据图样式
			emptyViewStyle: {
				type: Object,
				default: function() {
					return {}
				}
			},
			//空数据图img样式
			emptyViewImgStyle: {
				type: Object,
				default: function() {
					return {}
				}
			},
			//空数据图描述文字样式
			emptyViewTitleStyle: {
				type: Object,
				default: function() {
					return {}
				}
			},
			//空数据图重新加载按钮样式
			emptyViewReloadStyle: {
				type: Object,
				default: function() {
					return {}
				}
			},
			//空数据图z-index
			emptyViewZIndex: {
				type: Number,
				default: function() {
					return 9
				}
			},
			//空数据图片是否使用fixed布局并铺满z-paging
			emptyViewFixed: {
				type: Boolean,
				default: function() {
					return false
				}
			}
		},
		computed: {
			emptyImg() {
				if (this.isLoadFailed) {
					return this.base64Error;
				} else {
					return this.base64Empty;
				}
			},
			finalEmptyViewStyle(){
				this.emptyViewStyle['z-index'] = this.emptyViewZIndex;
				return this.emptyViewStyle;
			}
		},
		methods: {
			reloadClick() {
				this.$emit('reload');
			}
		}
	}
</script>

<style scoped>
	.zp-container{
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		align-items: center;
		justify-content: center;
	}
	.zp-container-fixed {
		/* #ifndef APP-NVUE */
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		height: 100%;
		/* #endif */
		/* #ifdef APP-NVUE */
		flex: 1;
		/* #endif */
	}

	.zp-main{
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: column;
		align-items: center;
	}
	
	.zp-main-fixed {
		/* #ifndef APP-NVUE */
		margin-top: -150rpx;
		/* #endif */
		/* #ifdef APP-NVUE */
		margin-top: -100rpx;
		/* #endif */
	}

	.zp-main-image {
		width: 200rpx;
		height: 200rpx;
	}

	.zp-main-title {
		font-size: 26rpx;
		color: #aaaaaa;
		text-align: center;
		margin-top: 10rpx;
	}

	.zp-main-error-btn {
		font-size: 26rpx;
		padding: 8rpx 24rpx;
		border: solid 1px #dddddd;
		border-radius: 6rpx;
		color: #aaaaaa;
		margin-top: 50rpx;
	}
</style>
