124 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Vue
		
	
	
	
		
		
			
		
	
	
			124 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Vue
		
	
	
	
|  | <template> | |||
|  | 	<view class="u-mask" hover-stop-propagation :style="[maskStyle, zoomStyle]" @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", | |||
|  | 		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 | |||
|  | 			} | |||
|  | 		}, | |||
|  | 		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 ${this.duration / 1000}s ease-in-out`; | |||
|  | 				// 判断用户传递的对象是否为空,不为空就进行合并
 | |||
|  | 				if (Object.keys(this.customStyle).length) style = {  | |||
|  | 					...style, | |||
|  | 					...this.customStyle | |||
|  | 				}; | |||
|  | 				return style; | |||
|  | 			} | |||
|  | 		}, | |||
|  | 		methods: { | |||
|  | 			click() { | |||
|  | 				if (!this.maskClickAble) return; | |||
|  | 				this.$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> |