| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137 | <template>	<view class="u-mask" hover-stop-propagation :style="[maskStyle, zoomStyle, filterStyle]" @tap="click" @touchmove.stop.prevent="() => {}" :class="{		'u-mask-zoom': zoom,		'u-mask-show': show	}">		<slot />	</view></template><script>	/**	 * mask 遮罩	 * @description 创建一个遮罩层,用于强调特定的页面元素,并阻止用户对遮罩下层的内容进行操作,一般用于弹窗场景	 * @tutorial https://www.uviewui.com/components/mask.html	 * @property {Boolean} show 是否显示遮罩(默认false)	 * @property {String Number} z-index z-index 层级(默认1070)	 * @property {Object} custom-style 自定义样式对象,见上方说明	 * @property {String Number} duration 动画时长,单位毫秒(默认300)	 * @property {Boolean} zoom 是否使用scale对遮罩进行缩放(默认true)	 * @property {Boolean} mask-click-able 遮罩是否可点击,为false时点击不会发送click事件(默认true)	 * @event {Function} click mask-click-able为true时,点击遮罩发送此事件	 * @example <u-mask :show="show" @click="show = false"></u-mask>	 */	export default {		name: "u-mask",		emits: ["click"],		props: {			// 是否显示遮罩			show: {				type: Boolean,				default: false			},			// 层级z-index			zIndex: {				type: [Number, String],				default: ''			},			// 用户自定义样式			customStyle: {				type: Object,				default () {					return {}				}			},			// 遮罩的动画样式, 是否使用使用zoom进行scale进行缩放			zoom: {				type: Boolean,				default: true			},			// 遮罩的过渡时间,单位为ms			duration: {				type: [Number, String],				default: 300			},			// 是否可以通过点击遮罩进行关闭			maskClickAble: {				type: Boolean,				default: true			},			// 遮罩的模糊度			blur: {				type: [Number, String],				default: 0			},		},		data() {			return {				zoomStyle: {					transform: ''				},				scale: 'scale(1.2, 1.2)'			}		},		watch: {			show(n) {				if(n && this.zoom) {					// 当展示遮罩的时候,设置scale为1,达到缩小(原来为1.2)的效果					this.zoomStyle.transform = 'scale(1, 1)';				} else if(!n && this.zoom) {					// 当隐藏遮罩的时候,设置scale为1.2,达到放大(因为显示遮罩时已重置为1)的效果					this.zoomStyle.transform = this.scale;				}			}		},		computed: {			maskStyle() {				let style = {};				style.backgroundColor = "rgba(0, 0, 0, 0.6)";				if(this.show) style.zIndex = this.zIndex ? this.zIndex : this.$u.zIndex.mask;				else style.zIndex = -1;				style.transition = `all ${this.duration / 1000}s ease-in-out`;				// 判断用户传递的对象是否为空,不为空就进行合并				if (Object.keys(this.customStyle).length) style = { 					...style,					...this.customStyle				};				return style;			},			filterStyle() {				let { blur } = this;				let style = {};				if (blur) {					style.backdropFilter = `blur(${blur}rpx)`;				}				return style;			}		},		methods: {			click() {				if (!this.maskClickAble) return;				this.$emit('click');			}		}	}</script><style lang="scss" scoped>	@import "../../libs/css/style.components.scss";		.u-mask {		position: fixed;		top: 0;		left: 0;		right: 0;		bottom: 0;		opacity: 0;		transition: transform 0.3s;	}	.u-mask-show {		opacity: 1;	}		.u-mask-zoom {		transform: scale(1.2, 1.2);	}</style>
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