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- <template>
- <view
- class="u-tooltip"
- :style="[addStyle(customStyle)]"
- >
- <u-overlay
- :show="showTooltip && tooltipTop !== -10000 && overlay"
- customStyle="backgroundColor: rgba(0, 0, 0, 0)"
- @click="overlayClickHandler"
- ></u-overlay>
- <view class="u-tooltip__wrapper">
- <text
- class="u-tooltip__wrapper__text"
- :id="textId"
- :ref="textId"
- :userSelect="false"
- :selectable="false"
- @longpress.stop="longpressHandler"
- :style="{
- color: color,
- backgroundColor: bgColor && showTooltip && tooltipTop !== -10000 ? bgColor : 'transparent'
- }"
- >{{ text }}</text>
- <u-transition
- mode="fade"
- :show="showTooltip"
- duration="300"
- :customStyle="{
- position: 'absolute',
- top: addUnit(tooltipTop),
- zIndex: zIndex,
- ...tooltipStyle
- }"
- >
- <view
- class="u-tooltip__wrapper__popup"
- :id="tooltipId"
- :ref="tooltipId"
- >
- <view
- class="u-tooltip__wrapper__popup__indicator"
- hover-class="u-tooltip__wrapper__popup__indicator--hover"
- v-if="showCopy || buttons.length"
- :style="[indicatorStyle, {
- width: addUnit(indicatorWidth),
- height: addUnit(indicatorWidth),
- }]"
- >
- <!-- 由于nvue不支持三角形绘制,这里就做一个四方形,再旋转45deg,得到露出的一个三角 -->
- </view>
- <view class="u-tooltip__wrapper__popup__list">
- <view
- v-if="showCopy"
- class="u-tooltip__wrapper__popup__list__btn"
- hover-class="u-tooltip__wrapper__popup__list__btn--hover"
- @tap="setClipboardData"
- >
- <text
- class="u-tooltip__wrapper__popup__list__btn__text"
- >复制</text>
- </view>
- <u-line
- direction="column"
- color="#8d8e90"
- v-if="showCopy && buttons.length > 0"
- length="18"
- ></u-line>
- <block v-for="(item , index) in buttons" :key="index">
- <view
- class="u-tooltip__wrapper__popup__list__btn"
- hover-class="u-tooltip__wrapper__popup__list__btn--hover"
- >
- <text
- class="u-tooltip__wrapper__popup__list__btn__text"
- @tap="btnClickHandler(index)"
- >{{ item }}</text>
- </view>
- <u-line
- direction="column"
- color="#8d8e90"
- v-if="index < buttons.length - 1"
- length="18"
- ></u-line>
- </block>
- </view>
- </view>
- </u-transition>
- </view>
- </view>
- </template>
- <script>
- import { props } from './props';
- import { mpMixin } from '../../libs/mixin/mpMixin';
- import { mixin } from '../../libs/mixin/mixin';
- import { addStyle, addUnit, getPx, guid, toast, sleep, sys } from '../../libs/function/index';
- // #ifdef APP-NVUE
- const dom = uni.requireNativePlugin('dom')
- // #endif
- /**
- * Tooltip
- * @description
- * @tutorial https://ijry.github.io/uview-plus/components/tooltip.html
- * @property {String | Number} text 需要显示的提示文字
- * @property {String | Number} copyText 点击复制按钮时,复制的文本,为空则使用text值
- * @property {String | Number} size 文本大小(默认 14 )
- * @property {String} color 字体颜色(默认 '#606266' )
- * @property {String} bgColor 弹出提示框时,文本的背景色(默认 'transparent' )
- * @property {String} direction 弹出提示的方向,top-上方,bottom-下方(默认 'top' )
- * @property {String | Number} zIndex 弹出提示的z-index,nvue无效(默认 10071 )
- * @property {Boolean} showCopy 是否显示复制按钮(默认 true )
- * @property {Array} buttons 扩展的按钮组
- * @property {Boolean} overlay 是否显示透明遮罩以防止触摸穿透(默认 true )
- * @property {Object} customStyle 定义需要用到的外部样式
- *
- * @event {Function}
- * @example
- */
- export default {
- name: 'u-tooltip',
- mixins: [mpMixin, mixin, props],
- data() {
- return {
- // 是否展示气泡
- showTooltip: true,
- // 生成唯一id,防止一个页面多个组件,造成干扰
- textId: guid(),
- tooltipId: guid(),
- // 初始时甚至为很大的值,让其移到屏幕外面,为了计算元素的尺寸
- tooltipTop: -10000,
- // 气泡的位置信息
- tooltipInfo: {
- width: 0,
- left: 0
- },
- // 文本的位置信息
- textInfo: {
- width: 0,
- left: 0
- },
- // 三角形指示器的样式
- indicatorStyle: {},
- // 气泡在可能超出屏幕边沿范围时,重新定位后,距离屏幕边沿的距离
- screenGap: 12,
- // 三角形指示器的宽高,由于对元素进行了角度旋转,精确计算指示器位置时,需要用到其尺寸信息
- indicatorWidth: 14,
- }
- },
- watch: {
- propsChange() {
- this.getElRect()
- }
- },
- computed: {
- // 特别处理H5的复制,因为H5浏览器是自带系统复制功能的,在H5环境
- // 当一些依赖参数变化时,需要重新计算气泡和指示器的位置信息
- propsChange() {
- return [this.text, this.buttons]
- },
- // 计算气泡和指示器的位置信息
- tooltipStyle() {
- const style = {
- transform: `translateY(${this.direction === 'top' ? '-100%' : '100%'})`,
- },
- sysInfo = sys()
- if (this.tooltipInfo.width / 2 > this.textInfo.left + this.textInfo.width / 2 - this.screenGap) {
- this.indicatorStyle = {}
- style.left = `-${addUnit(this.textInfo.left - this.screenGap)}`
- this.indicatorStyle.left = addUnit(this.textInfo.width / 2 - getPx(style.left) - this.indicatorWidth /
- 2)
- } else if (this.tooltipInfo.width / 2 > sysInfo.windowWidth - this.textInfo.right + this.textInfo.width / 2 -
- this.screenGap) {
- this.indicatorStyle = {}
- style.right = `-${addUnit(sysInfo.windowWidth - this.textInfo.right - this.screenGap)}`
- this.indicatorStyle.right = addUnit(this.textInfo.width / 2 - getPx(style.right) - this
- .indicatorWidth / 2)
- } else {
- const left = Math.abs(this.textInfo.width / 2 - this.tooltipInfo.width / 2)
- style.left = this.textInfo.width > this.tooltipInfo.width ? addUnit(left) : -addUnit(left)
- this.indicatorStyle = {}
- }
- if (this.direction === 'top') {
- style.marginTop = '-10px'
- this.indicatorStyle.bottom = '-4px'
- } else {
- style.marginBottom = '-10px'
- this.indicatorStyle.top = '-4px'
- }
- return style
- }
- },
- mounted() {
- this.init()
- },
- emits: ["click"],
- methods: {
- addStyle,
- addUnit,
- init() {
- this.getElRect()
- },
- // 长按触发事件
- async longpressHandler() {
- this.tooltipTop = 0
- this.showTooltip = true
- },
- // 点击透明遮罩
- overlayClickHandler() {
- this.showTooltip = false
- },
- // 点击弹出按钮
- btnClickHandler(index) {
- this.showTooltip = false
- // 如果需要展示复制按钮,此处index需要加1,因为复制按钮在第一个位置
- this.$emit('click', this.showCopy ? index + 1 : index)
- },
- // 查询内容高度
- queryRect(ref) {
- // #ifndef APP-NVUE
- // $uGetRect为uView自带的节点查询简化方法,详见文档介绍:https://ijry.github.io/uview-plus/js/getRect.html
- // 组件内部一般用this.$uGetRect,对外的为uni.$u.getRect,二者功能一致,名称不同
- return new Promise(resolve => {
- this.$uGetRect(`#${ref}`).then(size => {
- resolve(size)
- })
- })
- // #endif
- // #ifdef APP-NVUE
- // nvue下,使用dom模块查询元素高度
- // 返回一个promise,让调用此方法的主体能使用then回调
- return new Promise(resolve => {
- dom.getComponentRect(this.$refs[ref], res => {
- resolve(res.size)
- })
- })
- // #endif
- },
- // 元素尺寸
- getElRect() {
- // 调用之前,先将指示器调整到屏幕外,方便获取尺寸
- this.showTooltip = true
- this.tooltipTop = -10000
- sleep(500).then(() => {
- this.queryRect(this.tooltipId).then(size => {
- this.tooltipInfo = size
- // 获取气泡尺寸之后,将其隐藏,为了让下次切换气泡显示与隐藏时,有淡入淡出的效果
- this.showTooltip = false
- })
- this.queryRect(this.textId).then(size => {
- this.textInfo = size
- })
- })
- },
- // 复制文本到粘贴板
- setClipboardData() {
- // 关闭组件
- this.showTooltip = false
- this.$emit('click', 0)
- uni.setClipboardData({
- // 优先使用copyText字段,如果没有,则默认使用text字段当做复制的内容
- data: this.copyText || this.text,
- success: () => {
- this.showToast && toast('复制成功')
- },
- fail: () => {
- this.showToast && toast('复制失败')
- },
- complete: () => {
- this.showTooltip = false
- }
- })
- }
- }
- }
- </script>
- <style lang="scss" scoped>
- @import "../../libs/css/components.scss";
- .u-tooltip {
- position: relative;
- @include flex;
- &__wrapper {
- @include flex;
- justify-content: center;
- /* #ifndef APP-NVUE */
- white-space: nowrap;
- /* #endif */
- &__text {
- font-size: 14px;
- }
- &__popup {
- @include flex;
- justify-content: center;
- &__list {
- background-color: #060607;
- position: relative;
- flex: 1;
- border-radius: 5px;
- padding: 0px 0;
- @include flex(row);
- align-items: center;
- overflow: hidden;
- &__btn {
- padding: 11px 13px;
- &--hover {
- background-color: #58595B;
- }
- &__text {
- line-height: 12px;
- font-size: 13px;
- color: #FFFFFF;
- }
- }
- }
- &__indicator {
- position: absolute;
- background-color: #060607;
- width: 14px;
- height: 14px;
- bottom: -4px;
- transform: rotate(45deg);
- border-radius: 2px;
- z-index: -1;
- &--hover {
- background-color: #58595B;
- }
- }
- }
- }
- }
- </style>
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