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							211 lines
						
					
					
						
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							211 lines
						
					
					
						
							5.9 KiB
						
					
					
				
								<template>
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									<u-transition
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										mode="slide-down"
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										:customStyle="containerStyle"
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										:show="open"
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									>
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										<view
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											class="u-notify"
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											:class="[`u-notify--${tmpConfig.type}`]"
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											:style="[backgroundColor, $u.addStyle(customStyle)]"
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										>
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											<u-status-bar v-if="tmpConfig.safeAreaInsetTop"></u-status-bar>
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											<view class="u-notify__warpper">
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												<slot name="icon">
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													<u-icon
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														v-if="['success', 'warning', 'error'].includes(tmpConfig.type)"
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														:name="tmpConfig.icon"
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														:color="tmpConfig.color"
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														:size="1.3 * tmpConfig.fontSize"
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														:customStyle="{marginRight: '4px'}"
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													></u-icon>
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												</slot>
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												<text
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													class="u-notify__warpper__text"
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													:style="{
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														fontSize: $u.addUnit(tmpConfig.fontSize),
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														color: tmpConfig.color
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													}"
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												>{{ tmpConfig.message }}</text>
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											</view>
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										</view>
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									</u-transition>
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								</template>
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								<script>
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									import props from './props.js';
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									/**
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									 * notify 顶部提示
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									 * @description 该组件一般用于页面顶部向下滑出一个提示,尔后自动收起的场景
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									 * @tutorial
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									 * @property {String | Number}	top					到顶部的距离 ( 默认 0 )
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									 * @property {String}			type				主题,primary,success,warning,error ( 默认 'primary' )
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									 * @property {String}			color				字体颜色 ( 默认 '#ffffff' )
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									 * @property {String}			bgColor				背景颜色
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									 * @property {String}			message				展示的文字内容
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									 * @property {String | Number}	duration			展示时长,为0时不消失,单位ms ( 默认 3000 )
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									 * @property {String | Number}	fontSize			字体大小 ( 默认 15 )
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									 * @property {Boolean}			safeAreaInsetTop	是否留出顶部安全距离(状态栏高度) ( 默认 false )
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									 * @property {Object}			customStyle			组件的样式,对象形式
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									 * @event {Function}	open	开启组件时调用的函数
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									 * @event {Function}	close	关闭组件式调用的函数
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									 * @example <u-notify message="Hi uView"></u-notify>
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									 */
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									export default {
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										name: 'u-notify',
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										mixins: [uni.$u.mpMixin, uni.$u.mixin,props],
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										data() {
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											return {
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												// 是否展示组件
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												open: false,
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												timer: null,
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												config: {
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													// 到顶部的距离
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													top: uni.$u.props.notify.top,
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													// type主题,primary,success,warning,error
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													type: uni.$u.props.notify.type,
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													// 字体颜色
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													color: uni.$u.props.notify.color,
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													// 背景颜色
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													bgColor: uni.$u.props.notify.bgColor,
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													// 展示的文字内容
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													message: uni.$u.props.notify.message,
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													// 展示时长,为0时不消失,单位ms
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													duration: uni.$u.props.notify.duration,
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													// 字体大小
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													fontSize: uni.$u.props.notify.fontSize,
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													// 是否留出顶部安全距离(状态栏高度)
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													safeAreaInsetTop: uni.$u.props.notify.safeAreaInsetTop
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												},
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												// 合并后的配置,避免多次调用组件后,可能会复用之前使用的配置参数
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												tmpConfig: {}
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											}
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										},
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										computed: {
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											containerStyle() {
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												let top = 0
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												if (this.tmpConfig.top === 0) {
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													// #ifdef H5
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													// H5端,导航栏为普通元素,需要将组件移动到导航栏的下边沿
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													// H5的导航栏高度为44px
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													top = 44
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													// #endif
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												}
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												const style = {
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													top: uni.$u.addUnit(this.tmpConfig.top === 0 ? top : this.tmpConfig.top),
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													// 因为组件底层为u-transition组件,必须将其设置为fixed定位
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													// 让其出现在导航栏底部
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													position: 'fixed',
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													left: 0,
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													right: 0,
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													zIndex: 10076
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												}
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												return style
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											},
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											// 组件背景颜色
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											backgroundColor() {
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												const style = {}
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												if (this.tmpConfig.bgColor) {
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													style.backgroundColor = this.tmpConfig.bgColor
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												}
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												return style
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											},
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											// 默认主题下的图标
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											icon() {
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												let icon
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												if (this.tmpConfig.type === 'success') {
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													icon = 'checkmark-circle'
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												} else if (this.tmpConfig.type === 'error') {
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													icon = 'close-circle'
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												} else if (this.tmpConfig.type === 'warning') {
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													icon = 'error-circle'
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												}
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												return icon
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											}
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										},
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										created() {
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											// 通过主题的形式调用toast,批量生成方法函数
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											['primary', 'success', 'error', 'warning'].map(item => {
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												this[item] = message => this.show({
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													type: item,
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													message
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												})
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											})
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										},
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										methods: {
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											show(options) {
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												// 不将结果合并到this.config变量,避免多次调用u-toast,前后的配置造成混乱
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												this.tmpConfig = uni.$u.deepMerge(this.config, options)
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												// 任何定时器初始化之前,都要执行清除操作,否则可能会造成混乱
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												this.clearTimer()
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												this.open = true
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												if (this.tmpConfig.duration > 0) {
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													this.timer = setTimeout(() => {
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														this.open = false
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														// 倒计时结束,清除定时器,隐藏toast组件
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														this.clearTimer()
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														// 判断是否存在callback方法,如果存在就执行
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														typeof(this.tmpConfig.complete) === 'function' && this.tmpConfig.complete()
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													}, this.tmpConfig.duration)
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												}
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											},
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											// 关闭notify
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											close() {
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												this.clearTimer()
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											},
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											clearTimer() {
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												this.open = false
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												// 清除定时器
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												clearTimeout(this.timer)
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												this.timer = null
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											}
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										},
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										beforeDestroy() {
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											this.clearTimer()
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										}
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									}
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								</script>
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								<style lang="scss" scoped>
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									@import "../../libs/css/components.scss";
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									$u-notify-padding: 8px 10px !default;
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									$u-notify-text-font-size: 15px !default;
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									$u-notify-primary-bgColor: $u-primary !default;
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									$u-notify-success-bgColor: $u-success !default;
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									$u-notify-error-bgColor: $u-error !default;
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									$u-notify-warning-bgColor: $u-warning !default;
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									.u-notify {
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										padding: $u-notify-padding;
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										&__warpper {
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											@include flex;
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											align-items: center;
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											text-align: center;
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											justify-content: center;
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											&__text {
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												font-size: $u-notify-text-font-size;
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												text-align: center;
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											}
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										}
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										&--primary {
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											background-color: $u-notify-primary-bgColor;
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										}
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										&--success {
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											background-color: $u-notify-success-bgColor;
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										}
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										&--error {
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											background-color: $u-notify-error-bgColor;
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										}
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										&--warning {
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											background-color: $u-notify-warning-bgColor;
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										}
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									}
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								</style>
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