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<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>
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