343 lines
		
	
	
		
			9.2 KiB
		
	
	
	
		
			Vue
		
	
	
	
			
		
		
	
	
			343 lines
		
	
	
		
			9.2 KiB
		
	
	
	
		
			Vue
		
	
	
	
| <template>
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| 	<view class="u-search" @tap="clickHandler" :style="{
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| 		margin: margin,
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| 	}">
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| 		<view
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| 			class="u-content"
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| 			:style="{
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| 				backgroundColor: bgColor,
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| 				borderRadius: shape == 'round' ? '100rpx' : '10rpx',
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| 				border: borderStyle,
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| 				height: height + 'rpx'
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| 			}"
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| 		>
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| 			<view class="u-icon-wrap">
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| 				<u-icon class="u-clear-icon" :size="30" :name="searchIcon" :color="searchIconColor ? searchIconColor : color"></u-icon>
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| 			</view>
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| 			<input
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| 				confirm-type="search"
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| 				@blur="blur"
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| 				:value="value"
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| 				@confirm="search"
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| 				@input="inputChange"
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| 				:disabled="disabled"
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| 				@focus="getFocus"
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| 				:focus="focus"
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| 				:maxlength="maxlength"
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| 				placeholder-class="u-placeholder-class"
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| 				:placeholder="placeholder"
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| 				:placeholder-style="`color: ${placeholderColor}`"
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| 				class="u-input"
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| 				type="text"
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| 				:style="[{
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| 					textAlign: inputAlign,
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| 					color: color,
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| 					backgroundColor: bgColor,
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| 				}, inputStyle]"
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| 			/>
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| 			<view class="u-close-wrap" v-if="keyword && clearabled && focused" @tap="clear">
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| 				<u-icon class="u-clear-icon" name="close-circle-fill" size="34" color="#c0c4cc"></u-icon>
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| 			</view>
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| 		</view>
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| 		<view :style="[actionStyle]" class="u-action" 
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| 			:class="[showActionBtn || show ? 'u-action-active' : '']" 
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| 			@tap.stop.prevent="custom"
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| 		>{{ actionText }}</view>
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| 	</view>
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| </template>
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| 
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| <script>
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| /**
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|  * search 搜索框
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|  * @description 搜索组件,集成了常见搜索框所需功能,用户可以一键引入,开箱即用。
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|  * @tutorial https://www.uviewui.com/components/search.html
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|  * @property {String} shape 搜索框形状,round-圆形,square-方形(默认round)
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|  * @property {String} bg-color 搜索框背景颜色(默认#f2f2f2)
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|  * @property {String} border-color 边框颜色,配置了颜色,才会有边框
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|  * @property {String} placeholder 占位文字内容(默认“请输入关键字”)
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|  * @property {Boolean} clearabled 是否启用清除控件(默认true)
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|  * @property {Boolean} focus 是否自动获得焦点(默认false)
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|  * @property {Boolean} show-action 是否显示右侧控件(默认true)
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|  * @property {String} action-text 右侧控件文字(默认“搜索”)
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|  * @property {Object} action-style 右侧控件的样式,对象形式
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|  * @property {String} input-align 输入框内容水平对齐方式(默认left)
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|  * @property {Object} input-style 自定义输入框样式,对象形式
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|  * @property {Boolean} disabled 是否启用输入框(默认false)
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|  * @property {String} search-icon-color 搜索图标的颜色,默认同输入框字体颜色
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|  * @property {String} color 输入框字体颜色(默认#606266)
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|  * @property {String} placeholder-color placeholder的颜色(默认#909399)
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|  * @property {String} search-icon 输入框左边的图标,可以为uView图标名称或图片路径
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|  * @property {String} margin 组件与其他上下左右元素之间的距离,带单位的字符串形式,如"30rpx"
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|  * @property {Boolean} animation 是否开启动画,见上方说明(默认false)
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|  * @property {String} value 输入框初始值
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|  * @property {String | Number} maxlength 输入框最大能输入的长度,-1为不限制长度
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|  * @property {Boolean} input-style input输入框的样式,可以定义文字颜色,大小等,对象形式
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|  * @property {String | Number} height 输入框高度,单位rpx(默认64)
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|  * @event {Function} change 输入框内容发生变化时触发
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|  * @event {Function} search 用户确定搜索时触发,用户按回车键,或者手机键盘右下角的"搜索"键时触发
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|  * @event {Function} custom 用户点击右侧控件时触发
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|  * @event {Function} clear 用户点击清除按钮时触发
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|  * @example <u-search placeholder="日照香炉生紫烟" v-model="keyword"></u-search>
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|  */
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| export default {
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| 	name: "u-search",
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| 	props: {
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| 		// 搜索框形状,round-圆形,square-方形
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| 		shape: {
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| 			type: String,
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| 			default: 'round'
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| 		},
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| 		// 搜索框背景色,默认值#f2f2f2
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| 		bgColor: {
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| 			type: String,
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| 			default: '#f2f2f2'
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| 		},
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| 		// 占位提示文字
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| 		placeholder: {
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| 			type: String,
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| 			default: '请输入关键字'
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| 		},
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| 		// 是否启用清除控件
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| 		clearabled: {
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| 			type: Boolean,
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| 			default: true
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| 		},
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| 		// 是否自动聚焦
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| 		focus: {
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| 			type: Boolean,
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| 			default: false
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| 		},
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| 		// 是否在搜索框右侧显示取消按钮
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| 		showAction: {
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| 			type: Boolean,
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| 			default: true
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| 		},
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| 		// 右边控件的样式
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| 		actionStyle: {
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| 			type: Object,
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| 			default() {
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| 				return {};
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| 			}
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| 		},
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| 		// 取消按钮文字
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| 		actionText: {
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| 			type: String,
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| 			default: '搜索'
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| 		},
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| 		// 输入框内容对齐方式,可选值为 left|center|right
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| 		inputAlign: {
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| 			type: String,
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| 			default: 'left'
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| 		},
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| 		// 是否启用输入框
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| 		disabled: {
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| 			type: Boolean,
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| 			default: false
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| 		},
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| 		// 开启showAction时,是否在input获取焦点时才显示
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| 		animation: {
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| 			type: Boolean,
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| 			default: false
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| 		},
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| 		// 边框颜色,只要配置了颜色,才会有边框
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| 		borderColor: {
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| 			type: String,
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| 			default: 'none'
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| 		},
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| 		// 输入框的初始化内容
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| 		value: {
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| 			type: String,
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| 			default: ''
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| 		},
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| 		// 搜索框高度,单位rpx
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| 		height: {
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| 			type: [Number, String],
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| 			default: 64
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| 		},
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| 		// input输入框的样式,可以定义文字颜色,大小等,对象形式
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| 		inputStyle: {
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| 			type: Object,
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| 			default() {
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| 				return {}
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| 			}
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| 		},
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| 		// 输入框最大能输入的长度,-1为不限制长度(来自uniapp文档)
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| 		maxlength: {
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| 			type: [Number, String],
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| 			default: '-1'
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| 		},
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| 		// 搜索图标的颜色,默认同输入框字体颜色
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| 		searchIconColor: {
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| 			type: String,
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| 			default: ''
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| 		},
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| 		// 输入框字体颜色
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| 		color: {
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| 			type: String,
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| 			default: '#606266'
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| 		},
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| 		// placeholder的颜色
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| 		placeholderColor: {
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| 			type: String,
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| 			default: '#909399'
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| 		},
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| 		// 组件与其他上下左右元素之间的距离,带单位的字符串形式,如"30rpx"、"30rpx 20rpx"等写法
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| 		margin: {
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| 			type: String,
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| 			default: '0'
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| 		},
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| 		// 左边输入框的图标,可以为uView图标名称或图片路径
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| 		searchIcon: {
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| 			type: String,
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| 			default: 'search'
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| 		}
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| 	},
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| 	data() {
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| 		return {
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| 			keyword: '',
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| 			showClear: false, // 是否显示右边的清除图标
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| 			show: false,
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| 			// 标记input当前状态是否处于聚焦中,如果是,才会显示右侧的清除控件
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| 			focused: this.focus
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| 			// 绑定输入框的值
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| 			// inputValue: this.value
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| 		};
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| 	},
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| 	watch: {
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| 		keyword(nVal) {
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| 			// 双向绑定值,让v-model绑定的值双向变化
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| 			this.$emit('input', nVal);
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| 			// 触发change事件,事件效果和v-model双向绑定的效果一样,让用户多一个选择
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| 			this.$emit('change', nVal);
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| 		},
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| 		value: {
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| 			immediate: true,
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| 			handler(nVal) {
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| 				this.keyword = nVal;
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| 			}
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| 		}
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| 	},
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| 	computed: {
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| 		showActionBtn() {
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| 			if (!this.animation && this.showAction) return true;
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| 			else return false;
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| 		},
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| 		// 样式,根据用户传入的颜色值生成,如果不传入,默认为none
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| 		borderStyle() {
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| 			if (this.borderColor) return `1px solid ${this.borderColor}`;
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| 			else return 'none';
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| 		},
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| 	},
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| 	methods: {
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| 		// 目前HX2.6.9 v-model双向绑定无效,故监听input事件获取输入框内容的变化
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| 		inputChange(e) {
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| 			this.keyword = e.detail.value;
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| 		},
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| 		// 清空输入
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| 		// 也可以作为用户通过this.$refs形式调用清空输入框内容
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| 		clear() {
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| 			this.keyword = '';
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| 			// 延后发出事件,避免在父组件监听clear事件时,value为更新前的值(不为空)
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| 			this.$nextTick(() => {
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| 				this.$emit('clear');
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| 			})
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| 		},
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| 		// 确定搜索
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| 		search(e) {
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| 			this.$emit('search', e.detail.value);
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| 			try{
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| 				// 收起键盘
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| 				uni.hideKeyboard();
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| 			}catch(e){}
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| 		},
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| 		// 点击右边自定义按钮的事件
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| 		custom() {
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| 			this.$emit('custom', this.keyword);
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| 			try{
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| 				// 收起键盘
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| 				uni.hideKeyboard();
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| 			}catch(e){}
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| 		},
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| 		// 获取焦点
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| 		getFocus() {
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| 			this.focused = true;
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| 			// 开启右侧搜索按钮展开的动画效果
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| 			if (this.animation && this.showAction) this.show = true;
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| 			this.$emit('focus', this.keyword);
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| 		},
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| 		// 失去焦点
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| 		blur() {
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| 			// 最开始使用的是监听图标@touchstart事件,自从hx2.8.4后,此方法在微信小程序出错
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| 			// 这里改为监听点击事件,手点击清除图标时,同时也发生了@blur事件,导致图标消失而无法点击,这里做一个延时
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| 			setTimeout(() => {
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| 				this.focused = false;
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| 			}, 100)
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| 			this.show = false;
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| 			this.$emit('blur', this.keyword);
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| 		},
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| 		// 点击搜索框,只有disabled=true时才发出事件,因为禁止了输入,意味着是想跳转真正的搜索页
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| 		clickHandler() {
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| 			if(this.disabled) this.$emit('click');
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| 		}
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| 	}
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| };
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| </script>
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| 
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| <style lang="scss" scoped>
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| @import "../../libs/css/style.components.scss";
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| 
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| .u-search {
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| 	@include vue-flex;
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| 	align-items: center;
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| 	flex: 1;
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| }
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| 
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| .u-content {
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| 	@include vue-flex;
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| 	align-items: center;
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| 	padding: 0 18rpx;
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| 	flex: 1;
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| }
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| 
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| .u-clear-icon {
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| 	@include vue-flex;
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| 	align-items: center;
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| }
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| 
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| .u-input {
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| 	flex: 1;
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| 	font-size: 28rpx;
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| 	line-height: 1;
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| 	margin: 0 10rpx;
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| 	color: $u-tips-color;
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| }
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| 
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| .u-close-wrap {
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| 	width: 40rpx;
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| 	height: 100%;
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| 	@include vue-flex;
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| 	align-items: center;
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| 	justify-content: center;
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| 	border-radius: 50%;
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| }
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| 
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| .u-placeholder-class {
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| 	color: $u-tips-color;
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| }
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| 
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| .u-action {
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| 	font-size: 28rpx;
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| 	color: $u-main-color;
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| 	width: 0;
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| 	overflow: hidden;
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| 	transition: all 0.3s;
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| 	white-space: nowrap;
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| 	text-align: center;
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| }
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| 
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| .u-action-active {
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| 	width: 80rpx;
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| 	margin-left: 10rpx;
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| }
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| </style>
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