| <template> | 
|     <view class="u-field" :class="{'u-border-top': borderTop, 'u-border-bottom': borderBottom }"> | 
|         <view class="u-field-inner" :class="[type == 'textarea' ? 'u-textarea-inner' : '', 'u-label-postion-' + labelPosition]"> | 
|             <view class="u-label" :class="[required ? 'u-required' : '']" :style="{ | 
|                 justifyContent: justifyContent,  | 
|                 flex: labelPosition == 'left' ? `0 0 ${labelWidth}rpx` : '1' | 
|             }"> | 
|                 <view class="u-icon-wrap" v-if="icon"> | 
|                     <u-icon size="32" :custom-style="iconStyle" :name="icon" :color="iconColor" class="u-icon"></u-icon> | 
|                 </view> | 
|                 <slot name="icon"></slot> | 
|                 <text class="u-label-text" :class="[this.$slots.icon || icon ? 'u-label-left-gap' : '']">{{ label }}</text> | 
|             </view> | 
|             <view class="fild-body"> | 
|                 <view class="u-flex-1 u-flex" :style="[inputWrapStyle]"> | 
|                     <textarea v-if="type == 'textarea'" class="u-flex-1 u-textarea-class" :style="[fieldStyle]" :value="value" | 
|                      :placeholder="placeholder" :placeholderStyle="placeholderStyle" :disabled="disabled" :maxlength="inputMaxlength" | 
|                      :focus="focus" :autoHeight="autoHeight" :fixed="fixed" @input="onInput" @blur="onBlur" @focus="onFocus" @confirm="onConfirm" | 
|                      @tap="fieldClick" /> | 
|                     <input | 
|                         v-else | 
|                         :style="[fieldStyle]" | 
|                         :type="type" | 
|                         class="u-flex-1 u-field__input-wrap" | 
|                         :value="value" | 
|                         :password="password || this.type === 'password'" | 
|                         :placeholder="placeholder" | 
|                         :placeholderStyle="placeholderStyle" | 
|                         :disabled="disabled" | 
|                         :maxlength="inputMaxlength" | 
|                         :focus="focus" | 
|                         :confirmType="confirmType" | 
|                         @focus="onFocus" | 
|                         @blur="onBlur" | 
|                         @input="onInput" | 
|                         @confirm="onConfirm" | 
|                         @tap="fieldClick" | 
|                     /> | 
|                 </view> | 
|                 <u-icon :size="clearSize" v-if="clearable && value != '' && focused" name="close-circle-fill" color="#c0c4cc" class="u-clear-icon" @click="onClear"/> | 
|                 <view class="u-button-wrap"><slot name="right" /></view> | 
|                 <u-icon v-if="rightIcon" @click="rightIconClick" :name="rightIcon" color="#c0c4cc" :style="[rightIconStyle]" size="26" class="u-arror-right" /> | 
|             </view> | 
|         </view> | 
|         <view v-if="errorMessage !== false && errorMessage != ''" class="u-error-message" :style="{ | 
|             paddingLeft: labelWidth + 'rpx' | 
|         }">{{ errorMessage }}</view> | 
|     </view> | 
| </template> | 
|   | 
| <script> | 
| /** | 
|  * field 输入框 | 
|  * @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。 | 
|  * @tutorial https://www.uviewui.com/components/field.html | 
|  * @property {String} type 输入框的类型(默认text) | 
|  * @property {String} icon label左边的图标,限uView的图标名称 | 
|  * @property {Object} icon-style 左边图标的样式,对象形式 | 
|  * @property {Boolean} right-icon 输入框右边的图标名称,限uView的图标名称(默认false) | 
|  * @property {Boolean} required 是否必填,左边您显示红色"*"号(默认false) | 
|  * @property {String} label 输入框左边的文字提示 | 
|  * @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) | 
|  * @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) | 
|  * @property {Number String} label-width label的宽度,单位rpx(默认130) | 
|  * @property {String} label-align label的文字对齐方式(默认left) | 
|  * @property {Object} field-style 自定义输入框的样式,对象形式 | 
|  * @property {Number | String} clear-size 清除图标的大小,单位rpx(默认30) | 
|  * @property {String} input-align 输入框内容对齐方式(默认left) | 
|  * @property {Boolean} border-bottom 是否显示field的下边框(默认true) | 
|  * @property {Boolean} border-top 是否显示field的上边框(默认false) | 
|  * @property {String} icon-color 左边通过icon配置的图标的颜色(默认#606266) | 
|  * @property {Boolean} auto-height 是否自动增高输入区域,type为textarea时有效(默认true) | 
|  * @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 | 
|  * @property {String} placeholder 输入框的提示文字 | 
|  * @property {String} placeholder-style placeholder的样式(内联样式,字符串),如"color: #ddd" | 
|  * @property {Boolean} focus 是否自动获得焦点(默认false) | 
|  * @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) | 
|  * @property {Boolean} disabled 是否不可输入(默认false) | 
|  * @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) | 
|  * @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) | 
|  * @event {Function} input 输入框内容发生变化时触发 | 
|  * @event {Function} focus 输入框获得焦点时触发 | 
|  * @event {Function} blur 输入框失去焦点时触发 | 
|  * @event {Function} confirm 点击完成按钮时触发 | 
|  * @event {Function} right-icon-click 通过right-icon生成的图标被点击时触发 | 
|  * @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 | 
|  * @example <u-field v-model="mobile" label="手机号" required :error-message="errorMessage"></u-field> | 
|  */ | 
| export default { | 
|     name:"u-field", | 
|     props: { | 
|         icon: String, | 
|         rightIcon: String, | 
|         // arrowDirection: { | 
|         //     type: String, | 
|         //     default: 'right' | 
|         // }, | 
|         required: Boolean, | 
|         label: String, | 
|         password: Boolean, | 
|         clearable: { | 
|             type: Boolean, | 
|             default: true | 
|         }, | 
|         // 左边标题的宽度单位rpx | 
|         labelWidth: { | 
|             type: [Number, String], | 
|             default: 130 | 
|         }, | 
|         // 对齐方式,left|center|right | 
|         labelAlign: { | 
|             type: String, | 
|             default: 'left' | 
|         }, | 
|         inputAlign: { | 
|             type: String, | 
|             default: 'left' | 
|         }, | 
|         iconColor: { | 
|             type: String, | 
|             default: '#606266' | 
|         }, | 
|         autoHeight: { | 
|             type: Boolean, | 
|             default: true | 
|         }, | 
|         errorMessage: { | 
|             type: [String, Boolean], | 
|             default: '' | 
|         }, | 
|         placeholder: String, | 
|         placeholderStyle: String, | 
|         focus: Boolean, | 
|         fixed: Boolean, | 
|         value: [Number, String], | 
|         type: { | 
|             type: String, | 
|             default: 'text' | 
|         }, | 
|         disabled: { | 
|             type: Boolean, | 
|             default: false | 
|         }, | 
|         maxlength: { | 
|             type: [Number, String], | 
|             default: 140 | 
|         }, | 
|         confirmType: { | 
|             type: String, | 
|             default: 'done' | 
|         }, | 
|         // lable的位置,可选为 left-左边,top-上边 | 
|         labelPosition: { | 
|             type: String, | 
|             default: 'left' | 
|         }, | 
|         // 输入框的自定义样式 | 
|         fieldStyle: { | 
|             type: Object, | 
|             default() { | 
|                 return {} | 
|             } | 
|         }, | 
|         // 清除按钮的大小 | 
|         clearSize: { | 
|             type: [Number, String], | 
|             default: 30 | 
|         }, | 
|         // lable左边的图标样式,对象形式 | 
|         iconStyle: { | 
|             type: Object, | 
|             default() { | 
|                 return {} | 
|             } | 
|         }, | 
|         // 是否显示上边框 | 
|         borderTop: { | 
|             type: Boolean, | 
|             default: false | 
|         }, | 
|         // 是否显示下边框 | 
|         borderBottom: { | 
|             type: Boolean, | 
|             default: true | 
|         }, | 
|         // 是否自动去除两端的空格 | 
|         trim: { | 
|             type: Boolean, | 
|             default: true | 
|         } | 
|     }, | 
|     data() { | 
|         return { | 
|             focused: false, | 
|             itemIndex: 0, | 
|         }; | 
|     }, | 
|     computed: { | 
|         inputWrapStyle() { | 
|             let style = {}; | 
|             style.textAlign = this.inputAlign; | 
|             // 判断lable的位置,如果是left的话,让input左边两边有间隙 | 
|             if(this.labelPosition == 'left') { | 
|                 style.margin = `0 8rpx`; | 
|             } else { | 
|                 // 如果lable是top的,input的左边就没必要有间隙了 | 
|                 style.marginRight = `8rpx`; | 
|             } | 
|             return style; | 
|         }, | 
|         rightIconStyle() { | 
|             let style = {}; | 
|             if (this.arrowDirection == 'top') style.transform = 'roate(-90deg)'; | 
|             if (this.arrowDirection == 'bottom') style.transform = 'roate(90deg)'; | 
|             else style.transform = 'roate(0deg)'; | 
|             return style; | 
|         }, | 
|         labelStyle() { | 
|             let style = {}; | 
|             if(this.labelAlign == 'left') style.justifyContent = 'flext-start'; | 
|             if(this.labelAlign == 'center') style.justifyContent = 'center'; | 
|             if(this.labelAlign == 'right') style.justifyContent = 'flext-end'; | 
|             return style; | 
|         }, | 
|         // uni不支持在computed中写style.justifyContent = 'center'的形式,故用此方法 | 
|         justifyContent() { | 
|             if(this.labelAlign == 'left') return 'flex-start'; | 
|             if(this.labelAlign == 'center') return 'center'; | 
|             if(this.labelAlign == 'right') return 'flex-end'; | 
|         }, | 
|         // 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 | 
|         inputMaxlength() { | 
|             return Number(this.maxlength) | 
|         }, | 
|         // label的位置 | 
|         fieldInnerStyle() { | 
|             let style = {}; | 
|             if(this.labelPosition == 'left') { | 
|                 style.flexDirection = 'row'; | 
|             } else { | 
|                 style.flexDirection = 'column'; | 
|             } | 
|              | 
|             return style; | 
|         } | 
|     }, | 
|     methods: { | 
|         onInput(event) { | 
|             let value = event.detail.value; | 
|             // 判断是否去除空格 | 
|             if(this.trim) value = this.$u.trim(value); | 
|             this.$emit('input', value); | 
|         }, | 
|         onFocus(event) { | 
|             this.focused = true; | 
|             this.$emit('focus', event); | 
|         }, | 
|         onBlur(event) { | 
|             // 最开始使用的是监听图标@touchstart事件,自从hx2.8.4后,此方法在微信小程序出错 | 
|             // 这里改为监听点击事件,手点击清除图标时,同时也发生了@blur事件,导致图标消失而无法点击,这里做一个延时 | 
|             setTimeout(() => { | 
|                 this.focused = false; | 
|             }, 100) | 
|             this.$emit('blur', event); | 
|         }, | 
|         onConfirm(e) { | 
|             this.$emit('confirm', e.detail.value); | 
|         }, | 
|         onClear(event) { | 
|             this.$emit('input', ''); | 
|         }, | 
|         rightIconClick() { | 
|             this.$emit('right-icon-click'); | 
|             this.$emit('click'); | 
|         }, | 
|         fieldClick() { | 
|             this.$emit('click'); | 
|         } | 
|     } | 
| }; | 
| </script> | 
|   | 
| <style lang="scss" scoped> | 
| @import "../../libs/css/style.components.scss"; | 
|      | 
| .u-field { | 
|     font-size: 28rpx; | 
|     padding: 20rpx 28rpx; | 
|     text-align: left; | 
|     position: relative; | 
|     color: $u-main-color; | 
| } | 
|   | 
| .u-field-inner { | 
|     @include vue-flex; | 
|     align-items: center; | 
| } | 
|   | 
| .u-textarea-inner { | 
|     align-items: flex-start; | 
| } | 
|   | 
| .u-textarea-class { | 
|     min-height: 96rpx; | 
|     width: auto; | 
|     font-size: 28rpx; | 
| } | 
|   | 
| .fild-body { | 
|     @include vue-flex; | 
|     flex: 1; | 
|     align-items: center; | 
| } | 
|   | 
| .u-arror-right { | 
|     margin-left: 8rpx; | 
| } | 
|   | 
| .u-label-text { | 
|     /* #ifndef APP-NVUE */ | 
|     display: inline-flex;         | 
|     /* #endif */ | 
| } | 
|   | 
| .u-label-left-gap { | 
|     margin-left: 6rpx; | 
| } | 
|   | 
| .u-label-postion-top { | 
|     flex-direction: column; | 
|     align-items: flex-start; | 
| } | 
|   | 
| .u-label { | 
|     width: 130rpx; | 
|     flex: 1 1 130rpx; | 
|     text-align: left; | 
|     position: relative; | 
|     @include vue-flex; | 
|     align-items: center; | 
| } | 
|   | 
| .u-required::before { | 
|     content: '*'; | 
|     position: absolute; | 
|     left: -16rpx; | 
|     font-size: 14px; | 
|     color: $u-type-error; | 
|     height: 9px; | 
|     line-height: 1; | 
| } | 
|   | 
| .u-field__input-wrap { | 
|     position: relative; | 
|     overflow: hidden; | 
|     font-size: 28rpx; | 
|     height: 48rpx; | 
|     flex: 1; | 
|     width: auto; | 
| } | 
|   | 
| .u-clear-icon { | 
|     @include vue-flex; | 
|     align-items: center; | 
| } | 
|   | 
| .u-error-message { | 
|     color: $u-type-error; | 
|     font-size: 26rpx; | 
|     text-align: left; | 
| } | 
|   | 
| .placeholder-style { | 
|     color: rgb(150, 151, 153); | 
| } | 
|   | 
| .u-input-class { | 
|     font-size: 28rpx; | 
| } | 
|   | 
| .u-button-wrap { | 
|     margin-left: 8rpx; | 
| } | 
| </style> |