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<template> <view class="u-popup"> <u-overlay :show="show" @click="overlayClick" v-if="overlay" :duration="overlayDuration" :customStyle="overlayStyle" :opacity="overlayOpacity" ></u-overlay> <u-transition :show="show" :customStyle="transitionStyle" :mode="position" :duration="duration" @afterEnter="afterEnter" @click="clickHandler" > <view class="u-popup__content" :style="[contentStyle]" @tap.stop="noop" > <u-status-bar v-if="safeAreaInsetTop"></u-status-bar> <slot></slot> <view v-if="closeable" @tap.stop="close" class="u-popup__content__close" :class="['u-popup__content__close--' + closeIconPos]" hover-class="u-popup__content__close--hover" hover-stay-time="150" > <u-icon name="close" color="#909399" size="18" bold ></u-icon> </view> <u-safe-bottom v-if="safeAreaInsetBottom"></u-safe-bottom> </view> </u-transition> </view> </template>
<script> import props from './props.js';
/** * popup 弹窗 * @description 弹出层容器,用于展示弹窗、信息提示等内容,支持上、下、左、右和中部弹出。组件只提供容器,内部内容由用户自定义 * @tutorial https://www.uviewui.com/components/popup.html
* @property {Boolean} show 是否展示弹窗 (默认 false ) * @property {Boolean} overlay 是否显示遮罩 (默认 true ) * @property {String} mode 弹出方向(默认 'bottom' ) * @property {String | Number} duration 动画时长,单位ms (默认 300 ) * @property {String | Number} overlayDuration 遮罩层动画时长,单位ms (默认 350 ) * @property {Boolean} closeable 是否显示关闭图标(默认 false ) * @property {Object | String} overlayStyle 自定义遮罩的样式 * @property {String | Number} overlayOpacity 遮罩透明度,0-1之间(默认 0.5) * @property {Boolean} closeOnClickOverlay 点击遮罩是否关闭弹窗 (默认 true ) * @property {String | Number} zIndex 层级 (默认 10075 ) * @property {Boolean} safeAreaInsetBottom 是否为iPhoneX留出底部安全距离 (默认 true ) * @property {Boolean} safeAreaInsetTop 是否留出顶部安全距离(状态栏高度) (默认 false ) * @property {String} closeIconPos 自定义关闭图标位置(默认 'top-right' ) * @property {String | Number} round 圆角值(默认 0) * @property {Boolean} zoom 当mode=center时 是否开启缩放(默认 true ) * @property {Object} customStyle 组件的样式,对象形式 * @event {Function} open 弹出层打开 * @event {Function} close 弹出层收起 * @example <u-popup v-model="show"><text>出淤泥而不染,濯清涟而不妖</text></u-popup> */ export default { name: 'u-popup', mixins: [uni.$u.mpMixin, uni.$u.mixin, props], data() { return { overlayDuration: this.duration + 50 } }, watch: { show(newValue, oldValue) { if (newValue === true) { // #ifdef MP-WEIXIN
const children = this.$children this.retryComputedComponentRect(children) // #endif
} } }, computed: { transitionStyle() { const style = { zIndex: this.zIndex, position: 'fixed', display: 'flex', } style[this.mode] = 0 if (this.mode === 'left') { return uni.$u.deepMerge(style, { bottom: 0, top: 0, }) } else if (this.mode === 'right') { return uni.$u.deepMerge(style, { bottom: 0, top: 0, }) } else if (this.mode === 'top') { return uni.$u.deepMerge(style, { left: 0, right: 0 }) } else if (this.mode === 'bottom') { return uni.$u.deepMerge(style, { left: 0, right: 0, }) } else if (this.mode === 'center') { return uni.$u.deepMerge(style, { alignItems: 'center', 'justify-content': 'center', top: 0, left: 0, right: 0, bottom: 0 }) } }, contentStyle() { const style = {} // 通过设备信息的safeAreaInsets值来判断是否需要预留顶部状态栏和底部安全局的位置
// 不使用css方案,是因为nvue不支持css的iPhoneX安全区查询属性
const { safeAreaInsets } = uni.$u.sys() if (this.mode !== 'center') { style.flex = 1 } // 背景色,一般用于设置为transparent,去除默认的白色背景
if (this.bgColor) { style.backgroundColor = this.bgColor } if(this.round) { const value = uni.$u.addUnit(this.round) if(this.mode === 'top') { style.borderBottomLeftRadius = value style.borderBottomRightRadius = value } else if(this.mode === 'bottom') { style.borderTopLeftRadius = value style.borderTopRightRadius = value } else if(this.mode === 'center') { style.borderRadius = value } } return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle)) }, position() { if (this.mode === 'center') { return this.zoom ? 'fade-zoom' : 'fade' } if (this.mode === 'left') { return 'slide-left' } if (this.mode === 'right') { return 'slide-right' } if (this.mode === 'bottom') { return 'slide-up' } if (this.mode === 'top') { return 'slide-down' } }, }, methods: { // 点击遮罩
overlayClick() { if (this.closeOnClickOverlay) { this.$emit('close') } }, close(e) { this.$emit('close') }, afterEnter() { this.$emit('open') }, clickHandler() { // 由于中部弹出时,其u-transition占据了整个页面相当于遮罩,此时需要发出遮罩点击事件,是否无法通过点击遮罩关闭弹窗
if(this.mode === 'center') { this.overlayClick() } this.$emit('click') }, // #ifdef MP-WEIXIN
retryComputedComponentRect(children) { // 组件内部需要计算节点的组件
const names = ['u-calendar-month', 'u-album', 'u-collapse-item', 'u-dropdown', 'u-index-item', 'u-index-list', 'u-line-progress', 'u-list-item', 'u-rate', 'u-read-more', 'u-row', 'u-row-notice', 'u-scroll-list', 'u-skeleton', 'u-slider', 'u-steps-item', 'u-sticky', 'u-subsection', 'u-swipe-action-item', 'u-tabbar', 'u-tabs', 'u-tooltip' ] // 历遍所有的子组件节点
for (let i = 0; i < children.length; i++) { const child = children[i] // 拿到子组件的子组件
const grandChild = child.$children // 判断如果在需要重新初始化的组件数组中名中,并且存在init方法的话,则执行
if (names.includes(child.$options.name) && typeof child?.init === 'function') { // 需要进行一定的延时,因为初始化页面需要时间
uni.$u.sleep(50).then(() => { child.init() }) } // 如果子组件还有孙组件,进行递归历遍
if (grandChild.length) { this.retryComputedComponentRect(grandChild) } } } // #endif
} } </script>
<style lang="scss" scoped> @import "../../libs/css/components.scss"; $u-popup-flex:1 !default; $u-popup-content-background-color: #fff !default;
.u-popup { flex: $u-popup-flex;
&__content { background-color: $u-popup-content-background-color; position: relative;
&--round-top { border-top-left-radius: 0; border-top-right-radius: 0; border-bottom-left-radius: 10px; border-bottom-right-radius: 10px; }
&--round-left { border-top-left-radius: 0; border-top-right-radius: 10px; border-bottom-left-radius: 0; border-bottom-right-radius: 10px; }
&--round-right { border-top-left-radius: 10px; border-top-right-radius: 0; border-bottom-left-radius: 10px; border-bottom-right-radius: 0; }
&--round-bottom { border-top-left-radius: 10px; border-top-right-radius: 10px; border-bottom-left-radius: 0; border-bottom-right-radius: 0; }
&--round-center { border-top-left-radius: 10px; border-top-right-radius: 10px; border-bottom-left-radius: 10px; border-bottom-right-radius: 10px; }
&__close { position: absolute;
&--hover { opacity: 0.4; } }
&__close--top-left { top: 15px; left: 15px; }
&__close--top-right { top: 15px; right: 15px; }
&__close--bottom-left { bottom: 15px; left: 15px; }
&__close--bottom-right { right: 15px; bottom: 15px; } } } </style>
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