| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365 | <template>	<view		class="u-tooltip"		:style="[$u.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="{					backgroundColor: bgColor && showTooltip && tooltipTop !== -10000 ? bgColor : 'transparent'				}"			>{{ text }}</text>			<u-transition				mode="fade"				:show="showTooltip"				duration="300"				:customStyle="{					position: 'absolute', 					top: $u.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: $u.addUnit(indicatorWidth),							height: $u.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.js';	// #ifdef APP-NVUE 	const dom = uni.requireNativePlugin('dom')	// #endif	// #ifdef H5	import ClipboardJS from "./clipboard.min.js"	// #endif	/**	 * Tooltip 	 * @description 	 * @tutorial https://www.uviewui.com/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: [uni.$u.mpMixin, uni.$u.mixin, props],		data() {			return {				// 是否展示气泡				showTooltip: true,				// 生成唯一id,防止一个页面多个组件,造成干扰				textId: uni.$u.guid(),				tooltipId: uni.$u.guid(),				// 初始时甚至为很大的值,让其移到屏幕外面,为了计算元素的尺寸				tooltipTop: -10000,				// 气泡的位置信息				tooltipInfo: {					width: 0,					left: 0				},				// 文本的位置信息				textInfo: {					width: 0,					left: 0				},				// 三角形指示器的样式				indicatorStyle: {},				// 气泡在可能超出屏幕边沿范围时,重新定位后,距离屏幕边沿的距离				screenGap: 12,				// 三角形指示器的宽高,由于对元素进行了角度旋转,精确计算指示器位置时,需要用到其尺寸信息				indicatorWidth: 14,			}		},		watch: {			propsChange() {				this.getElRect()			}		},		computed: {			// 特别处理H5的复制,因为H5浏览器是自带系统复制功能的,在H5环境			// 当一些依赖参数变化时,需要重新计算气泡和指示器的位置信息			propsChange() {				return [this.text, this.buttons]			},			// 计算气泡和指示器的位置信息			tooltipStyle() {				const style = {						transform: `translateY(${this.direction === 'top' ? '-100%' : '100%'})`,					},					sys = uni.$u.sys(),					getPx = uni.$u.getPx,					addUnit = uni.$u.addUnit				if (this.tooltipInfo.width / 2 > this.textInfo.left + this.textInfo.width / 2 - this.screenGap) {					this.indicatorStyle = {}					style.left = `-${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 > sys.windowWidth - this.textInfo.right + this.textInfo.width / 2 -					this.screenGap) {					this.indicatorStyle = {}					style.right = `-${addUnit(sys.windowWidth - this.textInfo.right - this.screenGap)}`					this.indicatorStyle.right = addUnit(this.textInfo.width / 2 - getPx(style.right) - this						.indicatorWidth / 2)				} else {					const left = Math.abs(this.textInfo.width / 2 - this.tooltipInfo.width / 2)					style.left = this.textInfo.width > this.tooltipInfo.width ? addUnit(left) : -addUnit(left)					this.indicatorStyle = {}				}				if (this.direction === 'top') {					style.marginTop = '-10px'					this.indicatorStyle.bottom = '-4px'				} else {					style.marginBottom = '-10px'					this.indicatorStyle.top = '-4px'				}				return style			}		},		mounted() {			this.init()		},		methods: {			init() {				this.getElRect()			},			// 长按触发事件			async longpressHandler() {				this.tooltipTop = 0				this.showTooltip = true			},			// 点击透明遮罩			overlayClickHandler() {				this.showTooltip = false			},			// 点击弹出按钮			btnClickHandler(index) {				this.showTooltip = false				// 如果需要展示复制按钮,此处index需要加1,因为复制按钮在第一个位置				this.$emit('click', this.showCopy ? index + 1 : index)			},			// 查询内容高度			queryRect(ref) {				// #ifndef APP-NVUE				// $uGetRect为uView自带的节点查询简化方法,详见文档介绍:https://www.uviewui.com/js/getRect.html				// 组件内部一般用this.$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				uni.$u.sleep(500).then(() => {					this.queryRect(this.tooltipId).then(size => {						this.tooltipInfo = size						// 获取气泡尺寸之后,将其隐藏,为了让下次切换气泡显示与隐藏时,有淡入淡出的效果						this.showTooltip = false					})					this.queryRect(this.textId).then(size => {						this.textInfo = size					})				})			},			// 复制文本到粘贴板			setClipboardData() {				// 关闭组件				this.showTooltip = false				this.$emit('click', 0)				// #ifndef H5				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 && uni.$u.toast('复制成功')					},					fail: () => {						this.showToast && uni.$u.toast('复制失败')					},					complete: () => {						this.showTooltip = false					}				})				// #endif				// #ifdef H5				let event = window.event || e || {}				let clipboard = new ClipboardJS('', {					text: () => this.copyText || this.text				})				clipboard.on('success', (e) => {					this.showToast && uni.$u.toast('复制成功')					clipboard.off('success')					clipboard.off('error')					// 在单页应用中,需要销毁DOM的监听					clipboard.destroy()				})				clipboard.on('error', (e) => {					this.showToast && uni.$u.toast('复制失败')					clipboard.off('success')					clipboard.off('error')					// 在单页应用中,需要销毁DOM的监听					clipboard.destroy()				})				clipboard.onClick(event)				// #endif			}		}	}</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 {				color: $u-content-color;				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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