| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596 | <template>	<button		id="u-wave-btn"		class="u-btn u-line-1 u-fix-ios-appearance"		:class="[			'u-size-' + size,			plain ? 'u-btn--' + type + '--plain' : '',			loading ? 'u-loading' : '',			shape == 'circle' ? 'u-round-circle' : '',			hairLine ? showHairLineBorder : 'u-btn--bold-border',			'u-btn--' + type,			disabled ? `u-btn--${type}--disabled` : '',		]"		:hover-start-time="Number(hoverStartTime)"		:hover-stay-time="Number(hoverStayTime)"		:disabled="disabled"		:form-type="formType"		:open-type="openType"		:app-parameter="appParameter"		:hover-stop-propagation="hoverStopPropagation"		:send-message-title="sendMessageTitle"		send-message-path="sendMessagePath"		:lang="lang"		:data-name="dataName"		:session-from="sessionFrom"		:send-message-img="sendMessageImg"		:show-message-card="showMessageCard"		@getphonenumber="getphonenumber"		@getuserinfo="getuserinfo"		@error="error"		@opensetting="opensetting"		@launchapp="launchapp"		:style="[customStyle, {			overflow: ripple ? 'hidden' : 'visible'		}]"		@tap.stop="click($event)"		:hover-class="getHoverClass"		:loading="loading"	>		<slot></slot>		<view			v-if="ripple"			class="u-wave-ripple"			:class="[waveActive ? 'u-wave-active' : '']"			:style="{				top: rippleTop + 'px',				left: rippleLeft + 'px',				width: fields.targetWidth + 'px',				height: fields.targetWidth + 'px',				'background-color': rippleBgColor || 'rgba(0, 0, 0, 0.15)'			}"		></view>	</button></template><script>/** * button 按钮 * @description Button 按钮 * @tutorial https://www.uviewui.com/components/button.html * @property {String} size 按钮的大小 * @property {Boolean} ripple 是否开启点击水波纹效果 * @property {String} ripple-bg-color 水波纹的背景色,ripple为true时有效 * @property {String} type 按钮的样式类型 * @property {Boolean} plain 按钮是否镂空,背景色透明 * @property {Boolean} disabled 是否禁用 * @property {Boolean} hair-line 是否显示按钮的细边框(默认true) * @property {Boolean} shape 按钮外观形状,见文档说明 * @property {Boolean} loading 按钮名称前是否带 loading 图标(App-nvue 平台,在 ios 上为雪花,Android上为圆圈) * @property {String} form-type 用于 <form> 组件,点击分别会触发 <form> 组件的 submit/reset 事件 * @property {String} open-type 开放能力 * @property {String} data-name 额外传参参数,用于小程序的data-xxx属性,通过target.dataset.name获取 * @property {String} hover-class 指定按钮按下去的样式类。当 hover-class="none" 时,没有点击态效果(App-nvue 平台暂不支持) * @property {Number} hover-start-time 按住后多久出现点击态,单位毫秒 * @property {Number} hover-stay-time 手指松开后点击态保留时间,单位毫秒 * @property {Object} custom-style 对按钮的自定义样式,对象形式,见文档说明 * @event {Function} click 按钮点击 * @event {Function} getphonenumber open-type="getPhoneNumber"时有效 * @event {Function} getuserinfo 用户点击该按钮时,会返回获取到的用户信息,从返回参数的detail中获取到的值同uni.getUserInfo * @event {Function} error 当使用开放能力时,发生错误的回调 * @event {Function} opensetting 在打开授权设置页并关闭后回调 * @event {Function} launchapp 打开 APP 成功的回调 * @example <u-button>月落</u-button> */export default {	name: 'u-button',	props: {		// 是否细边框		hairLine: {			type: Boolean,			default: true		},		// 按钮的预置样式,default,primary,error,warning,success		type: {			type: String,			default: 'default'		},		// 按钮尺寸,default,medium,mini		size: {			type: String,			default: 'default'		},		// 按钮形状,circle(两边为半圆),square(带圆角)		shape: {			type: String,			default: 'square'		},		// 按钮是否镂空		plain: {			type: Boolean,			default: false		},		// 是否禁止状态		disabled: {			type: Boolean,			default: false		},		// 是否加载中		loading: {			type: Boolean,			default: false		},		// 开放能力,具体请看uniapp稳定关于button组件部分说明		// https://uniapp.dcloud.io/component/button		openType: {			type: String,			default: ''		},		// 用于 <form> 组件,点击分别会触发 <form> 组件的 submit/reset 事件		// 取值为submit(提交表单),reset(重置表单)		formType: {			type: String,			default: ''		},		// 打开 APP 时,向 APP 传递的参数,open-type=launchApp时有效		// 只微信小程序、QQ小程序有效		appParameter: {			type: String,			default: ''		},		// 指定是否阻止本节点的祖先节点出现点击态,微信小程序有效		hoverStopPropagation: {			type: Boolean,			default: false		},		// 指定返回用户信息的语言,zh_CN 简体中文,zh_TW 繁体中文,en 英文。只微信小程序有效		lang: {			type: String,			default: 'en'		},		// 会话来源,open-type="contact"时有效。只微信小程序有效		sessionFrom: {			type: String,			default: ''		},		// 会话内消息卡片标题,open-type="contact"时有效		// 默认当前标题,只微信小程序有效		sendMessageTitle: {			type: String,			default: ''		},		// 会话内消息卡片点击跳转小程序路径,open-type="contact"时有效		// 默认当前分享路径,只微信小程序有效		sendMessagePath: {			type: String,			default: ''		},		// 会话内消息卡片图片,open-type="contact"时有效		// 默认当前页面截图,只微信小程序有效		sendMessageImg: {			type: String,			default: ''		},		// 是否显示会话内消息卡片,设置此参数为 true,用户进入客服会话会在右下角显示"可能要发送的小程序"提示,		// 用户点击后可以快速发送小程序消息,open-type="contact"时有效		showMessageCard: {			type: Boolean,			default: false		},		// 手指按(触摸)按钮时按钮时的背景颜色		hoverBgColor: {			type: String,			default: ''		},		// 水波纹的背景颜色		rippleBgColor: {			type: String,			default: ''		},		// 是否开启水波纹效果		ripple: {			type: Boolean,			default: false		},		// 按下的类名		hoverClass: {			type: String,			default: ''		},		// 自定义样式,对象形式		customStyle: {			type: Object,			default() {				return {};			}		},		// 额外传参参数,用于小程序的data-xxx属性,通过target.dataset.name获取		dataName: {			type: String,			default: ''		},		// 节流,一定时间内只能触发一次		throttleTime: {			type: [String, Number],			default: 1000		},		// 按住后多久出现点击态,单位毫秒		hoverStartTime: {			type: [String, Number],			default: 20		},		// 手指松开后点击态保留时间,单位毫秒		hoverStayTime: {			type: [String, Number],			default: 150		},	},	computed: {		// 当没有传bgColor变量时,按钮按下去的颜色类名		getHoverClass() {			// 如果开启水波纹效果,则不启用hover-class效果			if (this.loading || this.disabled || this.ripple || this.hoverClass) return '';			let hoverClass = '';			hoverClass = this.plain ? 'u-' + this.type + '-plain-hover' : 'u-' + this.type + '-hover';			return hoverClass;		},		// 在'primary', 'success', 'error', 'warning'类型下,不显示边框,否则会造成四角有毛刺现象		showHairLineBorder() {			if (['primary', 'success', 'error', 'warning'].indexOf(this.type) >= 0 && !this.plain) {				return '';			} else {				return 'u-hairline-border';			}		}	},	data() {		return {			rippleTop: 0, // 水波纹的起点Y坐标到按钮上边界的距离			rippleLeft: 0, // 水波纹起点X坐标到按钮左边界的距离			fields: {}, // 波纹按钮节点信息			waveActive: false // 激活水波纹		};	},	methods: {		// 按钮点击		click(e) {			// 进行节流控制,每this.throttle毫秒内,只在开始处执行			this.$u.throttle(() => {				// 如果按钮时disabled和loading状态,不触发水波纹效果				if (this.loading === true || this.disabled === true) return;				// 是否开启水波纹效果				if (this.ripple) {					// 每次点击时,移除上一次的类,再次添加,才能触发动画效果					this.waveActive = false;					this.$nextTick(function() {						this.getWaveQuery(e);					});				}				this.$emit('click', e);			}, this.throttleTime);		},		// 查询按钮的节点信息		getWaveQuery(e) {			this.getElQuery().then(res => {				// 查询返回的是一个数组节点				let data = res[0];				// 查询不到节点信息,不操作				if (!data.width || !data.width) return;				// 水波纹的最终形态是一个正方形(通过border-radius让其变为一个圆形),这里要保证正方形的边长等于按钮的最长边				// 最终的方形(变换后的圆形)才能覆盖整个按钮				data.targetWidth = data.height > data.width ? data.height : data.width;				if (!data.targetWidth) return;				this.fields = data;				let touchesX = '',					touchesY = '';				// 				touchesX = e.changedTouches[0].clientX;				touchesY = e.changedTouches[0].clientY;				// 				// 				touchesX = e.detail.clientX;				touchesY = e.detail.clientY;				// 				// 				touchesX = e.touches[0].clientX;				touchesY = e.touches[0].clientY;				// 				// 获取触摸点相对于按钮上边和左边的x和y坐标,原理是通过屏幕的触摸点(touchesY),减去按钮的上边界data.top				// 但是由于`transform-origin`默认是center,所以这里再减去半径才是水波纹view应该的位置				// 总的来说,就是把水波纹的矩形(变换后的圆形)的中心点,移动到我们的触摸点位置				this.rippleTop = touchesY - data.top - data.targetWidth / 2;				this.rippleLeft = touchesX - data.left - data.targetWidth / 2;				this.$nextTick(() => {					this.waveActive = true;				});			});		},		// 获取节点信息		getElQuery() {			return new Promise(resolve => {				let queryInfo = '';				// 获取元素节点信息,请查看uniapp相关文档				// https://uniapp.dcloud.io/api/ui/nodes-info?id=nodesrefboundingclientrect				queryInfo = uni.createSelectorQuery().in(this);				//#ifdef MP-ALIPAY				queryInfo = uni.createSelectorQuery();				//#endif				queryInfo.select('.u-btn').boundingClientRect();				queryInfo.exec(data => {					resolve(data);				});			});		},		// 下面为对接uniapp官方按钮开放能力事件回调的对接		getphonenumber(res) {			this.$emit('getphonenumber', res);		},		getuserinfo(res) {			this.$emit('getuserinfo', res);		},		error(res) {			this.$emit('error', res);		},		opensetting(res) {			this.$emit('opensetting', res);		},		launchapp(res) {			this.$emit('launchapp', res);		}	}};</script><style scoped lang="scss">@import '../../libs/css/style.components.scss';.u-btn::after {	border: none;}.u-btn {	position: relative;	border: 0;	//border-radius: 10rpx;	/* 	display: inline-flex;			/* 	// 避免边框某些场景可能被“裁剪”,不能设置为hidden	overflow: visible;	line-height: 1;	@include vue-flex;	align-items: center;	justify-content: center;	cursor: pointer;	padding: 0 40rpx;	z-index: 1;	box-sizing: border-box;	transition: all 0.15s;		&--bold-border {		border: 1px solid 	}		&--default {		color: $u-content-color;		border-color: 		background-color: 	}		&--primary {		color: 		border-color: $u-type-primary;		background-color: $u-type-primary;	}		&--success {		color: 		border-color: $u-type-success;		background-color: $u-type-success;	}		&--error {		color: 		border-color: $u-type-error;		background-color: $u-type-error;	}		&--warning {		color: 		border-color: $u-type-warning;		background-color: $u-type-warning;	}		&--default--disabled {		color: 		border-color: 		background-color: 	}		&--primary--disabled {		color: 		border-color: $u-type-primary-disabled!important;		background-color: $u-type-primary-disabled!important;	}		&--success--disabled {		color: 		border-color: $u-type-success-disabled!important;		background-color: $u-type-success-disabled!important;	}		&--error--disabled {		color: 		border-color: $u-type-error-disabled!important;		background-color: $u-type-error-disabled!important;	}		&--warning--disabled {		color: 		border-color: $u-type-warning-disabled!important;		background-color: $u-type-warning-disabled!important;	}		&--primary--plain {		color: $u-type-primary!important;		border-color: $u-type-primary-disabled!important;		background-color: $u-type-primary-light!important;	}		&--success--plain {		color: $u-type-success!important;		border-color: $u-type-success-disabled!important;		background-color: $u-type-success-light!important;	}		&--error--plain {		color: $u-type-error!important;		border-color: $u-type-error-disabled!important;		background-color: $u-type-error-light!important;	}		&--warning--plain {		color: $u-type-warning!important;		border-color: $u-type-warning-disabled!important;		background-color: $u-type-warning-light!important;	}}.u-hairline-border:after {	content: ' ';	position: absolute;	pointer-events: none;	// 设置为border-box,意味着下面的scale缩小为0.5,实际上缩小的是伪元素的内容(border-box意味着内容不含border)	box-sizing: border-box;	// 中心点作为变形(scale())的原点	-webkit-transform-origin: 0 0;	transform-origin: 0 0;	left: 0;	top: 0;	width: 199.8%;	height: 199.7%;	-webkit-transform: scale(0.5, 0.5);	transform: scale(0.5, 0.5);	border: 1px solid currentColor;	z-index: 1;}.u-wave-ripple {	z-index: 0;	position: absolute;	border-radius: 100%;	background-clip: padding-box;	pointer-events: none;	user-select: none;	transform: scale(0);	opacity: 1;	transform-origin: center;}.u-wave-ripple.u-wave-active {	opacity: 0;	transform: scale(2);	transition: opacity 1s linear, transform 0.4s linear;}.u-round-circle {	border-radius: 100rpx;}.u-round-circle::after {	border-radius: 100rpx;}.u-loading::after {	background-color: hsla(0, 0%, 100%, 0.35);}.u-size-default {	font-size: 30rpx;	height: 80rpx;	line-height: 80rpx;}.u-size-medium {	/* 	display: inline-flex;			/* 	width: auto;	font-size: 26rpx;	height: 70rpx;	line-height: 70rpx;	padding: 0 80rpx;}.u-size-mini {	/* 	display: inline-flex;			/* 	width: auto;	font-size: 22rpx;	padding-top: 1px;	height: 50rpx;	line-height: 50rpx;	padding: 0 20rpx;}.u-primary-plain-hover {	color: 	background: $u-type-primary-dark !important;}.u-default-plain-hover {	color: $u-type-primary-dark !important;	background: $u-type-primary-light !important;}.u-success-plain-hover {	color: 	background: $u-type-success-dark !important;}.u-warning-plain-hover {	color: 	background: $u-type-warning-dark !important;}.u-error-plain-hover {	color: 	background: $u-type-error-dark !important;}.u-info-plain-hover {	color: 	background: $u-type-info-dark !important;}.u-default-hover {	color: $u-type-primary-dark !important;	border-color: $u-type-primary-dark !important;	background-color: $u-type-primary-light !important;}.u-primary-hover {	background: $u-type-primary-dark !important;	color: }.u-success-hover {	background: $u-type-success-dark !important;	color: }.u-info-hover {	background: $u-type-info-dark !important;	color: }.u-warning-hover {	background: $u-type-warning-dark !important;	color: }.u-error-hover {	background: $u-type-error-dark !important;	color: }</style>
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