| <template> | |
| 	<u-transition | |
| 	    :show="show" | |
| 	    custom-class="u-overlay" | |
| 	    :duration="duration" | |
| 	    :custom-style="overlayStyle" | |
| 	    @click="clickHandler" | |
| 	> | |
| 		<slot /> | |
| 	</u-transition> | |
| </template> | |
| 
 | |
| <script> | |
| 	import props from './props.js'; | |
| 
 | |
| 	/** | |
| 	 * overlay 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/overlay.html | |
| 	 * @property {Boolean}			show		是否显示遮罩(默认 false ) | |
| 	 * @property {String | Number}	zIndex		zIndex 层级(默认 10070 ) | |
| 	 * @property {String | Number}	duration	动画时长,单位毫秒(默认 300 ) | |
| 	 * @property {String | Number}	opacity		不透明度值,当做rgba的第四个参数 (默认 0.5 ) | |
| 	 * @property {Object}			customStyle	定义需要用到的外部样式 | |
| 	 * @event {Function} click 点击遮罩发送事件 | |
| 	 * @example <u-overlay :show="show" @click="show = false"></u-overlay> | |
| 	 */ | |
| 	export default { | |
| 		name: "u-overlay", | |
| 		mixins: [uni.$u.mpMixin, uni.$u.mixin,props], | |
| 		computed: { | |
| 			overlayStyle() { | |
| 				const style = { | |
| 					position: 'fixed', | |
| 					top: 0, | |
| 					left: 0, | |
| 					right: 0, | |
| 					zIndex: this.zIndex, | |
| 					bottom: 0, | |
| 					'background-color': `rgba(0, 0, 0, ${this.opacity})` | |
| 				} | |
| 				return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle)) | |
| 			} | |
| 		}, | |
| 		methods: { | |
| 			clickHandler() { | |
| 				this.$emit('click') | |
| 			} | |
| 		} | |
| 	} | |
| </script> | |
| 
 | |
| <style lang="scss" scoped> | |
| 	@import "../../libs/css/components.scss"; | |
|      $u-overlay-top:0 !default; | |
|      $u-overlay-left:0 !default; | |
|      $u-overlay-width:100% !default; | |
|      $u-overlay-height:100% !default; | |
|      $u-overlay-background-color:rgba(0, 0, 0, .7) !default; | |
| 	.u-overlay { | |
| 		position: fixed; | |
| 		top:$u-overlay-top; | |
| 		left:$u-overlay-left; | |
| 		width: $u-overlay-width; | |
| 		height:$u-overlay-height; | |
| 		background-color:$u-overlay-background-color; | |
| 	} | |
| </style>
 |