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<template>
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<u-popup
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mode="center"
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:zoom="zoom"
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:show="show"
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:class="[customClass]"
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:customStyle="{
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borderRadius: '6px',
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overflow: 'hidden',
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marginTop: `-${addUnit(negativeTop)}`
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}"
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:closeOnClickOverlay="closeOnClickOverlay"
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:safeAreaInsetBottom="false"
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:duration="400"
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@click="clickHandler"
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>
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<view
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class="u-modal"
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:style="{
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width: addUnit(width),
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}"
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>
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<view
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class="u-modal__title"
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v-if="title"
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>{{ title }}</view>
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<view
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class="u-modal__content"
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:style="{
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paddingTop: `${title ? 12 : 25}px`
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}"
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>
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<slot>
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<text class="u-modal__content__text" :style="{textAlign: contentTextAlign}">
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{{ content }}
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</text>
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</slot>
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</view>
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<view
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class="u-modal__button-group--confirm-button"
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v-if="$slots.confirmButton"
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>
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<slot name="confirmButton"></slot>
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</view>
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<template v-else>
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<u-line></u-line>
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<view
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class="u-modal__button-group"
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:style="{
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flexDirection: buttonReverse ? 'row-reverse' : 'row'
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}"
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>
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<view
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class="u-modal__button-group__wrapper u-modal__button-group__wrapper--cancel"
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:hover-stay-time="150"
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hover-class="u-modal__button-group__wrapper--hover"
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:class="[showCancelButton && !showConfirmButton && 'u-modal__button-group__wrapper--only-cancel']"
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v-if="showCancelButton"
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@tap="cancelHandler"
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>
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<text
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class="u-modal__button-group__wrapper__text"
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:style="{
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color: cancelColor
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}"
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>{{ cancelText }}</text>
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</view>
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<u-line
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direction="column"
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v-if="showConfirmButton && showCancelButton"
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></u-line>
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<view
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class="u-modal__button-group__wrapper u-modal__button-group__wrapper--confirm"
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:hover-stay-time="150"
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hover-class="u-modal__button-group__wrapper--hover"
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:class="[!showCancelButton && showConfirmButton && 'u-modal__button-group__wrapper--only-confirm']"
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v-if="showConfirmButton"
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@tap="confirmHandler"
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>
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<u-loading-icon v-if="loading"></u-loading-icon>
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<text
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v-else
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class="u-modal__button-group__wrapper__text"
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:style="{
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color: confirmColor
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}"
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>{{ confirmText }}</text>
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</view>
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</view>
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</template>
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</view>
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</u-popup>
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</template>
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<script>
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import { props } from './props';
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import { mpMixin } from '../../libs/mixin/mpMixin';
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import { mixin } from '../../libs/mixin/mixin';
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import { addUnit } from '../../libs/function/index';
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/**
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* Modal 模态框
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* @description 弹出模态框，常用于消息提示、消息确认、在当前页面内完成特定的交互操作。
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* @tutorial https://ijry.github.io/uview-plus/components/modul.html
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* @property {Boolean} show 是否显示模态框，请赋值给show （默认 false ）
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* @property {String} title 标题内容
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* @property {String} content 模态框内容，如传入slot内容，则此参数无效
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* @property {String} confirmText 确认按钮的文字 （默认 '确认' ）
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* @property {String} cancelText 取消按钮的文字 （默认 '取消' ）
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* @property {Boolean} showConfirmButton 是否显示确认按钮 （默认 true ）
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* @property {Boolean} showCancelButton 是否显示取消按钮 （默认 false ）
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* @property {String} confirmColor 确认按钮的颜色 （默认 '#2979ff' ）
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* @property {String} cancelColor 取消按钮的颜色 （默认 '#606266' ）
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* @property {Boolean} buttonReverse 对调确认和取消的位置 （默认 false ）
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* @property {Boolean} zoom 是否开启缩放模式 （默认 true ）
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* @property {Boolean} asyncClose 是否异步关闭，只对确定按钮有效，见上方说明 （默认 false ）
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* @property {Boolean} closeOnClickOverlay 是否允许点击遮罩关闭Modal （默认 false ）
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* @property {String | Number} negativeTop 往上偏移的值，给一个负的margin-top，往上偏移，避免和键盘重合的情况，单位任意，数值则默认为px单位 （默认 0 ）
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* @property {String | Number} width modal宽度，不支持百分比，可以数值，px，rpx单位 （默认 '650rpx' ）
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* @property {String} confirmButtonShape 确认按钮的样式,如设置，将不会显示取消按钮
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* @event {Function} confirm 点击确认按钮时触发
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* @event {Function} cancel 点击取消按钮时触发
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* @event {Function} close 点击遮罩关闭出发，closeOnClickOverlay为true有效
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* @example <u-loadmore :status="status" icon-type="iconType" load-text="loadText" />
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*/
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export default {
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name: 'u-modal',
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mixins: [mpMixin, mixin, props],
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data() {
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return {
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loading: false
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}
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},
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watch: {
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show(n) {
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// 为了避免第一次打开modal，又使用了异步关闭的loading
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// 第二次打开modal时，loading依然存在的情况
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if (n && this.loading) this.loading = false
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}
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},
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emits: ["confirm", "cancel", "close"],
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methods: {
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addUnit,
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// 点击确定按钮
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confirmHandler() {
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// 如果配置了异步关闭，将按钮值为loading状态
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if (this.asyncClose) {
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this.loading = true;
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}
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this.$emit('confirm')
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},
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// 点击取消按钮
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cancelHandler() {
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this.$emit('cancel')
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},
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// 点击遮罩
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// 从原理上来说，modal的遮罩点击，并不是真的点击到了遮罩
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// 因为modal依赖于popup的中部弹窗类型，中部弹窗比较特殊，虽有然遮罩，但是为了让弹窗内容能flex居中
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// 多了一个透明的遮罩，此透明的遮罩会覆盖在灰色的遮罩上，所以实际上是点击不到灰色遮罩的，popup内部在
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// 透明遮罩的子元素做了.stop处理，所以点击内容区，也不会导致误触发
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clickHandler() {
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if (this.closeOnClickOverlay) {
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this.$emit('close')
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}
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}
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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-modal-border-radius: 6px;
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.u-modal {
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width: 650rpx;
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border-radius: $u-modal-border-radius;
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overflow: hidden;
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&__title {
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display: flex;
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flex-direction: column;
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justify-content: center;
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align-items: center;
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font-size: 16px;
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font-weight: bold;
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color: $u-content-color;
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text-align: center;
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padding-top: 25px;
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}
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&__content {
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padding: 12px 25px 25px 25px;
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@include flex;
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justify-content: center;
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&__text {
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font-size: 15px;
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color: $u-content-color;
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flex: 1;
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}
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}
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&__button-group {
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@include flex;
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&--confirm-button {
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flex-direction: column;
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padding: 0px 25px 15px 25px;
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}
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&__wrapper {
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flex: 1;
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@include flex;
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justify-content: center;
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align-items: center;
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height: 48px;
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&--confirm,
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&--only-cancel {
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border-bottom-right-radius: $u-modal-border-radius;
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}
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&--cancel,
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&--only-confirm {
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border-bottom-left-radius: $u-modal-border-radius;
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}
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&--hover {
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background-color: $u-bg-color;
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}
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&__text {
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color: $u-content-color;
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font-size: 16px;
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text-align: center;
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}
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}
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}
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}
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</style>
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