users/uni_modules/uview-ui/components/u-modal/u-modal.vue

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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="duration"
@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 {Number} duration 弹窗动画过度时间 (默认 400
* @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pxrpx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>