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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-loadmore :status="status" icon-type="iconType" load-text="loadText" />
*/
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.$emit('cancel')
},
// 点击遮罩
// 从原理上来说,modal的遮罩点击,并不是真的点击到了遮罩
// 因为modal依赖于popup的中部弹窗类型,中部弹窗比较特殊,虽有然遮罩,但是为了让弹窗内容能flex居中
// 多了一个透明的遮罩,此透明的遮罩会覆盖在灰色的遮罩上,所以实际上是点击不到灰色遮罩的,popup内部在
// 透明遮罩的子元素做了.stop处理,所以点击内容区,也不会导致误触发
clickHandler() {
if (this.closeOnClickOverlay) {
this.$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>