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