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