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445 lines
11 KiB
445 lines
11 KiB
<template> |
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<view class="uni-forms-item" :class="{'uni-forms-item--border':border,'is-first-border':border&&isFirstBorder,'uni-forms-item-error':msg}"> |
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<view class="uni-forms-item__box"> |
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<view class="uni-forms-item__inner" :class="['is-direction-'+labelPos,]"> |
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<view v-if="label" class="uni-forms-item__label" :style="{width:labelWid+'px',justifyContent: justifyContent}"> |
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<slot name="left"> |
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<uni-icons v-if="leftIcon" class="label-icon" size="16" :type="leftIcon" :color="iconColor" /> |
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<text class="label-text">{{label}}</text> |
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<text v-if="required" class="is-required">*</text> |
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</slot> |
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</view> |
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<view class="uni-forms-item__content" :class="{'is-input-error-border': msg}"> |
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<slot></slot> |
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</view> |
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</view> |
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<view v-if="msg" class="uni-error-message" :class="{'uni-error-msg--boeder':border}" :style="{ |
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paddingLeft: (labelPos === 'left'? Number(labelWid)+5:5) + 'px' |
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}"><text class="uni-error-message-text">{{ showMsg === 'undertext' ? msg:'' }}</text></view> |
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</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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* FormsItem 表单子组件 |
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* @description 此组件可以实现表单的输入与校验，包括 "text" 和 "textarea" 类型。 |
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* @tutorial https://ext.dcloud.net.cn/plugin?id=2773 |
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* @property {String} name 表单域的属性名，在使用校验规则时必填 |
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* @property {Boolean} required 左边显示红色"*"号，样式显示不会对校验规则产生效果（默认 false） |
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* @property {String} validate-trigger = [bind|submit] 表单校验时机（默认 submit） |
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* @value bind 数据发生变化时触发 |
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* @value submit 提交表单是触发 |
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* @property {String} left-icon label左边的图标，限uni-ui的图标名称 |
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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 {String} label 输入框左边的文字提示 |
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* @property {Number} label-width label的宽度，单位px |
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* @property {String} label-align = [left|center|right] label的文字对齐方式（默认 left） |
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* @value left 左对齐 |
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* @value center 居中对齐 |
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* @value right 右对齐 |
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* @property {String} label-position = [top|left] label的文字的位置（默认 left） |
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* @value top 顶部显示 label |
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* @value left 左侧显示 label |
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* @property {String} 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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*/ |
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export default { |
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name: "uniFormsItem", |
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props: { |
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// 自定义内容 |
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custom: { |
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type: Boolean, |
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default: false |
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}, |
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// 是否显示报错信息 |
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showMessage: { |
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type: Boolean, |
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default: true |
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}, |
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name: String, |
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required: Boolean, |
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validateTrigger: { |
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type: String, |
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default: '' |
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}, |
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leftIcon: String, |
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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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label: String, |
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// 左边标题的宽度单位px |
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labelWidth: { |
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type: [Number, String], |
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default: '' |
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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: '' |
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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: '' |
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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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}, |
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data() { |
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return { |
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errorTop: false, |
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errorBottom: false, |
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labelMarginBottom: '', |
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errorWidth: '', |
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errMsg: '', |
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val: '', |
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labelPos: '', |
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labelWid: '', |
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labelAli: '', |
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showMsg: 'undertext', |
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border: false, |
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isFirstBorder: false |
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}; |
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}, |
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computed: { |
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msg() { |
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return this.errorMessage || this.errMsg; |
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}, |
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fieldStyle() { |
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let style = {} |
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if (this.labelPos == 'top') { |
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style.padding = '0 0' |
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this.labelMarginBottom = '6px' |
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} |
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if (this.labelPos == 'left' && this.msg !== false && this.msg != '') { |
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style.paddingBottom = '0px' |
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this.errorBottom = true |
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this.errorTop = false |
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} else if (this.labelPos == 'top' && this.msg !== false && this.msg != '') { |
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this.errorBottom = false |
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this.errorTop = true |
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} else { |
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// style.paddingBottom = '' |
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this.errorTop = false |
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this.errorBottom = false |
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} |
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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.labelAli === 'left') return 'flex-start'; |
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if (this.labelAli === 'center') return 'center'; |
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if (this.labelAli === 'right') return 'flex-end'; |
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} |
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}, |
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watch: { |
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validateTrigger(trigger) { |
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this.formTrigger = trigger |
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} |
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}, |
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created() { |
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this.form = this.getForm() |
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this.group = this.getForm('uniGroup') |
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this.formRules = [] |
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this.formTrigger = this.validateTrigger |
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if (this.form) { |
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this.form.childrens.push(this) |
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} |
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this.init() |
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}, |
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destroyed() { |
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if (this.form) { |
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this.form.childrens.forEach((item, index) => { |
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if (item === this) { |
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this.form.childrens.splice(index, 1) |
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delete this.form.formData[item.name] |
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} |
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}) |
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} |
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}, |
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methods: { |
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init() { |
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if (this.form) { |
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let { |
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formRules, |
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validator, |
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formData, |
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value, |
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labelPosition, |
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labelWidth, |
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labelAlign, |
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errShowType |
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} = this.form |
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this.labelPos = this.labelPosition ? this.labelPosition : labelPosition |
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this.labelWid = this.label ? (this.labelWidth ? this.labelWidth : labelWidth) : 0 |
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this.labelAli = this.labelAlign ? this.labelAlign : labelAlign |
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// 判断第一个 item |
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if (!this.form.isFirstBorder) { |
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this.form.isFirstBorder = true |
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this.isFirstBorder = true |
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} |
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// 判断 group 里的第一个 item |
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if (this.group) { |
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if (!this.group.isFirstBorder) { |
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this.group.isFirstBorder = true |
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this.isFirstBorder = true |
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} |
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} |
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this.border = this.form.border |
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this.showMsg = errShowType |
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if (formRules) { |
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this.formRules = formRules[this.name] || {} |
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} |
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this.validator = validator |
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} else { |
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this.labelPos = this.labelPosition || 'left' |
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this.labelWid = this.labelWidth || 65 |
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this.labelAli = this.labelAlign || 'left' |
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} |
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}, |
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/** |
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* 获取父元素实例 |
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*/ |
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getForm(name = 'uniForms') { |
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let parent = this.$parent; |
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let parentName = parent.$options.name; |
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while (parentName !== name) { |
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parent = parent.$parent; |
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if (!parent) return false |
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parentName = parent.$options.name; |
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} |
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return parent; |
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}, |
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/** |
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* 移除该表单项的校验结果 |
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*/ |
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clearValidate() { |
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this.errMsg = '' |
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}, |
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setValue(value) { |
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if (this.name) { |
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if (this.errMsg) this.errMsg = '' |
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this.form.formData[this.name] = this.form._getValue(this.name, value) |
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if (!this.formRules || (typeof(this.formRules) && JSON.stringify(this.formRules) === '{}')) return |
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this.triggerCheck(this.form._getValue(this.name, value)) |
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} |
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}, |
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/** |
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* 校验规则 |
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* @param {Object} value |
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*/ |
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async triggerCheck(value, callback) { |
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let promise = null; |
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this.errMsg = '' |
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// if no callback, return promise |
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// if (callback && typeof callback !== 'function' && Promise) { |
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// promise = new Promise((resolve, reject) => { |
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// callback = function(valid) { |
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// !valid ? resolve(valid) : reject(valid) |
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// }; |
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// }); |
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// } |
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// if (!this.validator) { |
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// typeof callback === 'function' && callback(null); |
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// if (promise) return promise |
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// } |
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if (!this.validator) return |
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const isNoField = this.isRequired(this.formRules.rules || []) |
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let isTrigger = this.isTrigger(this.formRules.validateTrigger, this.validateTrigger, this.form.validateTrigger) |
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let result = null |
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if (!(!isTrigger)) { |
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result = await this.validator.validateUpdate({ |
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[this.name]: value |
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}, this.form.formData) |
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} |
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// 判断是否必填,非必填，不填不校验，填写才校验 |
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if (!isNoField && (value === undefined || value === '')) { |
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result = null |
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} |
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if (isTrigger && result && result.errorMessage) { |
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const inputComp = this.form.inputChildrens.find(child => child.rename === this.name) |
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if (inputComp) { |
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inputComp.errMsg = result.errorMessage |
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} |
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if (this.form.errShowType === 'toast') { |
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uni.showToast({ |
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title: result.errorMessage || '校验错误', |
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icon: 'none' |
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}) |
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} |
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if (this.form.errShowType === 'modal') { |
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uni.showModal({ |
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title: '提示', |
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content: result.errorMessage || '校验错误' |
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}) |
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} |
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} |
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this.errMsg = !result ? '' : result.errorMessage |
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// 触发validate事件 |
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this.form.validateCheck(result ? result : null) |
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// typeof callback === 'function' && callback(result ? result : null); |
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// if (promise) return promise |
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}, |
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/** |
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* 触发时机 |
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* @param {Object} event |
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*/ |
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isTrigger(rule, itemRlue, parentRule) { |
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let rl = true; |
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// bind submit |
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if (rule === 'submit' || !rule) { |
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if (rule === undefined) { |
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if (itemRlue !== 'bind') { |
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if (!itemRlue) { |
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return parentRule === 'bind' ? true : false |
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} |
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return false |
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} |
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return true |
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} |
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return false |
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} |
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return true; |
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}, |
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// 是否有必填字段 |
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isRequired(rules) { |
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let isNoField = false |
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for (let i = 0; i < rules.length; i++) { |
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const ruleData = rules[i] |
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if (ruleData.required) { |
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isNoField = true |
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break |
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} |
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} |
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return isNoField |
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} |
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} |
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}; |
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</script> |
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<style scoped> |
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.uni-forms-item { |
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position: relative; |
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padding: 0px; |
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text-align: left; |
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color: #333; |
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font-size: 14px; |
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} |
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.uni-forms-item__box { |
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position: relative; |
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} |
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.uni-forms-item__inner { |
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/* #ifndef APP-NVUE */ |
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display: flex; |
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/* #endif */ |
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padding-bottom: 22px; |
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} |
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.is-direction-left { |
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flex-direction: row; |
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} |
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.is-direction-top { |
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flex-direction: column; |
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} |
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.uni-forms-item__label { |
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/* #ifndef APP-NVUE */ |
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display: flex; |
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flex-shrink: 0; |
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box-sizing: border-box; |
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/* #endif */ |
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flex-direction: row; |
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align-items: center; |
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width: 65px; |
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padding: 5px 0; |
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height: 36px; |
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margin-right: 5px; |
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} |
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.uni-forms-item__label .label-text { |
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font-size: 14px; |
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color: #333; |
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} |
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.uni-forms-item__content { |
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/* #ifndef APP-NVUE */ |
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width: 100%; |
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box-sizing: border-box; |
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min-height: 36px; |
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/* #endif */ |
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flex: 1; |
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} |
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.label-icon { |
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margin-right: 5px; |
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margin-top: -1px; |
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} |
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.is-required { |
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color: #dd524d; |
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} |
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.uni-error-message { |
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position: absolute; |
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bottom: 0px; |
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left: 0; |
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text-align: left; |
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} |
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.uni-error-message-text { |
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line-height: 22px; |
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color: #dd524d; |
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font-size: 12px; |
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} |
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.uni-error-msg--boeder { |
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position: relative; |
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bottom: 0; |
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line-height: 22px; |
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} |
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.is-input-error-border { |
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border-color: #dd524d; |
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} |
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.uni-forms-item--border { |
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margin-bottom: 0; |
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padding: 10px 0; |
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border-top: 1px #eee solid; |
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} |
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.uni-forms-item--border .uni-forms-item__inner { |
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padding: 0; |
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} |
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.uni-forms-item-error { |
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padding-bottom: 0; |
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} |
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.is-first-border { |
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/* #ifndef APP-NVUE */ |
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border: none; |
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/* #endif */ |
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/* #ifdef APP-NVUE */ |
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border-width: 0; |
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/* #endif */ |
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} |
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</style> |