385 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Vue
		
	
	
	
			
		
		
	
	
			385 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Vue
		
	
	
	
<template>
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	<view class="u-field" :class="{'u-border-top': borderTop, 'u-border-bottom': borderBottom }">
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		<view class="u-field-inner" :class="[type == 'textarea' ? 'u-textarea-inner' : '', 'u-label-postion-' + labelPosition]">
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			<view class="u-label" :class="[required ? 'u-required' : '']" :style="{
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				justifyContent: justifyContent, 
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				flex: labelPosition == 'left' ? `0 0 ${labelWidth}rpx` : '1'
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			}">
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				<view class="u-icon-wrap" v-if="icon">
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					<u-icon size="32" :custom-style="iconStyle" :name="icon" :color="iconColor" class="u-icon"></u-icon>
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				</view>
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				<slot name="icon"></slot>
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				<text class="u-label-text" :class="[this.$slots.icon || icon ? 'u-label-left-gap' : '']">{{ label }}</text>
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			</view>
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			<view class="fild-body">
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				<view class="u-flex-1 u-flex" :style="[inputWrapStyle]">
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					<textarea v-if="type == 'textarea'" class="u-flex-1 u-textarea-class" :style="[fieldStyle]" :value="value"
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					 :placeholder="placeholder" :placeholderStyle="placeholderStyle" :disabled="disabled" :maxlength="inputMaxlength"
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					 :focus="focus" :autoHeight="autoHeight" :fixed="fixed" @input="onInput" @blur="onBlur" @focus="onFocus" @confirm="onConfirm"
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					 @tap="fieldClick" />
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					<input
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						v-else
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						:style="[fieldStyle]"
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						:type="type"
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						class="u-flex-1 u-field__input-wrap"
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						:value="value"
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						:password="password || this.type === 'password'"
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						:placeholder="placeholder"
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						:placeholderStyle="placeholderStyle"
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						:disabled="disabled"
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						:maxlength="inputMaxlength"
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						:focus="focus"
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						:confirmType="confirmType"
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						@focus="onFocus"
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						@blur="onBlur"
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						@input="onInput"
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						@confirm="onConfirm"
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						@tap="fieldClick"
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					/>
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				</view>
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				<u-icon :size="clearSize" v-if="clearable && value != '' && focused" name="close-circle-fill" color="#c0c4cc" class="u-clear-icon" @click="onClear"/>
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				<view class="u-button-wrap"><slot name="right" /></view>
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				<u-icon v-if="rightIcon" @click="rightIconClick" :name="rightIcon" color="#c0c4cc" :style="[rightIconStyle]" size="26" class="u-arror-right" />
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			</view>
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		</view>
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		<view v-if="errorMessage !== false && errorMessage != ''" class="u-error-message" :style="{
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			paddingLeft: labelWidth + 'rpx'
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		}">{{ errorMessage }}</view>
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	</view>
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</template>
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<script>
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/**
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 * field 输入框
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 * @description 借助此组件,可以实现表单的输入, 有"text"和"textarea"类型的,此外,借助uView的picker和actionSheet组件可以快速实现上拉菜单,时间,地区选择等, 为表单解决方案的利器。
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 * @tutorial https://www.uviewui.com/components/field.html
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 * @property {String} type 输入框的类型(默认text)
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 * @property {String} icon label左边的图标,限uView的图标名称
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 * @property {Object} icon-style 左边图标的样式,对象形式
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 * @property {Boolean} right-icon 输入框右边的图标名称,限uView的图标名称(默认false)
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 * @property {Boolean} required 是否必填,左边您显示红色"*"号(默认false)
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 * @property {String} label 输入框左边的文字提示
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 * @property {Boolean} password 是否密码输入方式(用点替换文字),type为text时有效(默认false)
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 * @property {Boolean} clearable 是否显示右侧清空内容的图标控件(输入框有内容,且获得焦点时才显示),点击可清空输入框内容(默认true)
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 * @property {Number String} label-width label的宽度,单位rpx(默认130)
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 * @property {String} label-align label的文字对齐方式(默认left)
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 * @property {Object} field-style 自定义输入框的样式,对象形式
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 * @property {Number | String} clear-size 清除图标的大小,单位rpx(默认30)
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 * @property {String} input-align 输入框内容对齐方式(默认left)
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 * @property {Boolean} border-bottom 是否显示field的下边框(默认true)
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 * @property {Boolean} border-top 是否显示field的上边框(默认false)
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 * @property {String} icon-color 左边通过icon配置的图标的颜色(默认#606266)
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 * @property {Boolean} auto-height 是否自动增高输入区域,type为textarea时有效(默认true)
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 * @property {String Boolean} error-message 显示的错误提示内容,如果为空字符串或者false,则不显示错误信息
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 * @property {String} placeholder 输入框的提示文字
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 * @property {String} placeholder-style placeholder的样式(内联样式,字符串),如"color: #ddd"
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 * @property {Boolean} focus 是否自动获得焦点(默认false)
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 * @property {Boolean} fixed 如果type为textarea,且在一个"position:fixed"的区域,需要指明为true(默认false)
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 * @property {Boolean} disabled 是否不可输入(默认false)
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 * @property {Number String} maxlength 最大输入长度,设置为 -1 的时候不限制最大长度(默认140)
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 * @property {String} confirm-type 设置键盘右下角按钮的文字,仅在type="text"时生效(默认done)
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 * @event {Function} input 输入框内容发生变化时触发
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 * @event {Function} focus 输入框获得焦点时触发
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 * @event {Function} blur 输入框失去焦点时触发
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 * @event {Function} confirm 点击完成按钮时触发
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 * @event {Function} right-icon-click 通过right-icon生成的图标被点击时触发
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 * @event {Function} click 输入框被点击或者通过right-icon生成的图标被点击时触发,这样设计是考虑到传递右边的图标,一般都为需要弹出"picker"等操作时的场景,点击倒三角图标,理应发出此事件,见上方说明
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 * @example <u-field v-model="mobile" label="手机号" required :error-message="errorMessage"></u-field>
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 */
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export default {
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	name:"u-field",
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	props: {
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		icon: String,
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		rightIcon: String,
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		// arrowDirection: {
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		// 	type: String,
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		// 	default: 'right'
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		// },
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		required: Boolean,
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		label: String,
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		password: Boolean,
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		clearable: {
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			type: Boolean,
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			default: true
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		},
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		// 左边标题的宽度单位rpx
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		labelWidth: {
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			type: [Number, String],
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			default: 130
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		},
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		// 对齐方式,left|center|right
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		labelAlign: {
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			type: String,
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			default: 'left'
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		},
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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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		iconColor: {
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			type: String,
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			default: '#606266'
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		},
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		autoHeight: {
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			type: Boolean,
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			default: true
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		},
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		errorMessage: {
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			type: [String, Boolean],
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			default: ''
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		},
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		placeholder: String,
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		placeholderStyle: String,
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		focus: Boolean,
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		fixed: Boolean,
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		value: [Number, String],
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		type: {
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			type: String,
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			default: 'text'
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		},
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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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		maxlength: {
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			type: [Number, String],
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			default: 140
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		},
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		confirmType: {
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			type: String,
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			default: 'done'
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		},
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		// lable的位置,可选为 left-左边,top-上边
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		labelPosition: {
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			type: String,
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			default: 'left'
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		},
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		// 输入框的自定义样式
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		fieldStyle: {
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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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		// 清除按钮的大小
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		clearSize: {
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			type: [Number, String],
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			default: 30
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		},
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		// lable左边的图标样式,对象形式
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		iconStyle: {
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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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		// 是否显示上边框
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		borderTop: {
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			type: Boolean,
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			default: false
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		},
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		// 是否显示下边框
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		borderBottom: {
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			type: Boolean,
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			default: true
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		},
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		// 是否自动去除两端的空格
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		trim: {
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			type: Boolean,
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			default: true
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		}
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	},
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	data() {
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		return {
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			focused: false,
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			itemIndex: 0,
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		};
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	},
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	computed: {
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		inputWrapStyle() {
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			let style = {};
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			style.textAlign = this.inputAlign;
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			// 判断lable的位置,如果是left的话,让input左边两边有间隙
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			if(this.labelPosition == 'left') {
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				style.margin = `0 8rpx`;
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			} else {
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				// 如果lable是top的,input的左边就没必要有间隙了
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				style.marginRight = `8rpx`;
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			}
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			return style;
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		},
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		rightIconStyle() {
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			let style = {};
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			if (this.arrowDirection == 'top') style.transform = 'roate(-90deg)';
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			if (this.arrowDirection == 'bottom') style.transform = 'roate(90deg)';
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			else style.transform = 'roate(0deg)';
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			return style;
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		},
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		labelStyle() {
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			let style = {};
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			if(this.labelAlign == 'left') style.justifyContent = 'flext-start';
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			if(this.labelAlign == 'center') style.justifyContent = 'center';
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			if(this.labelAlign == 'right') style.justifyContent = 'flext-end';
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			return style;
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		},
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		// uni不支持在computed中写style.justifyContent = 'center'的形式,故用此方法
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		justifyContent() {
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			if(this.labelAlign == 'left') return 'flex-start';
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			if(this.labelAlign == 'center') return 'center';
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			if(this.labelAlign == 'right') return 'flex-end';
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		},
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		// 因为uniapp的input组件的maxlength组件必须要数值,这里转为数值,给用户可以传入字符串数值
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		inputMaxlength() {
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			return Number(this.maxlength)
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		},
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		// label的位置
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		fieldInnerStyle() {
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			let style = {};
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			if(this.labelPosition == 'left') {
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				style.flexDirection = 'row';
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			} else {
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				style.flexDirection = 'column';
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			}
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			return style;
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		}
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	},
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	methods: {
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		onInput(event) {
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			let value = event.detail.value;
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			// 判断是否去除空格
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			if(this.trim) value = this.$u.trim(value);
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			this.$emit('input', value);
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		},
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		onFocus(event) {
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			this.focused = true;
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			this.$emit('focus', event);
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		},
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		onBlur(event) {
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			// 最开始使用的是监听图标@touchstart事件,自从hx2.8.4后,此方法在微信小程序出错
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			// 这里改为监听点击事件,手点击清除图标时,同时也发生了@blur事件,导致图标消失而无法点击,这里做一个延时
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			setTimeout(() => {
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				this.focused = false;
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			}, 100)
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			this.$emit('blur', event);
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		},
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		onConfirm(e) {
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			this.$emit('confirm', e.detail.value);
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		},
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		onClear(event) {
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			this.$emit('input', '');
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		},
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		rightIconClick() {
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			this.$emit('right-icon-click');
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			this.$emit('click');
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		},
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		fieldClick() {
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			this.$emit('click');
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		}
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	}
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};
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</script>
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<style lang="scss" scoped>
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@import "../../libs/css/style.components.scss";
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.u-field {
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	font-size: 28rpx;
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	padding: 20rpx 28rpx;
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	text-align: left;
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	position: relative;
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	color: $u-main-color;
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}
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.u-field-inner {
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	@include vue-flex;
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	align-items: center;
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}
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.u-textarea-inner {
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	align-items: flex-start;
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}
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.u-textarea-class {
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	min-height: 96rpx;
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	width: auto;
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	font-size: 28rpx;
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}
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.fild-body {
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	@include vue-flex;
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	flex: 1;
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	align-items: center;
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}
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.u-arror-right {
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	margin-left: 8rpx;
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}
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.u-label-text {
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	/* #ifndef APP-NVUE */
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	display: inline-flex;		
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	/* #endif */
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}
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.u-label-left-gap {
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	margin-left: 6rpx;
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}
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.u-label-postion-top {
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	flex-direction: column;
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	align-items: flex-start;
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}
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.u-label {
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	width: 130rpx;
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	flex: 1 1 130rpx;
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	text-align: left;
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	position: relative;
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	@include vue-flex;
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	align-items: center;
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}
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.u-required::before {
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	content: '*';
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	position: absolute;
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	left: -16rpx;
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	font-size: 14px;
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	color: $u-type-error;
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	height: 9px;
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	line-height: 1;
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}
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.u-field__input-wrap {
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	position: relative;
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	overflow: hidden;
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	font-size: 28rpx;
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	height: 48rpx;
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	flex: 1;
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	width: auto;
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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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.u-error-message {
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	color: $u-type-error;
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	font-size: 26rpx;
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	text-align: left;
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}
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.placeholder-style {
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	color: rgb(150, 151, 153);
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}
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.u-input-class {
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	font-size: 28rpx;
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}
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.u-button-wrap {
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	margin-left: 8rpx;
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}
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</style>
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