zyejMAll-mobile/uni_modules/uni-forms/components/uni-forms-item/uni-forms-item.vue

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2024-08-07 10:31:42 +08:00
<template>
<view class="">
<view
class="uni-forms-item"
:class="{
'uni-forms-item--border': border,
'is-first-border': border && isFirstBorder,
'uni-forms-item-error': msg
}"
>
<view class="uni-forms-item__box">
<view class="uni-forms-item__inner" :class="['is-direction-' + labelPos]">
<view class="uni-forms-item__label" :style="{ width: labelWid, justifyContent: justifyContent }">
<slot name="label">
<text v-if="required" class="is-required">*</text>
<uni-icons
v-if="leftIcon"
class="label-icon"
size="16"
:type="leftIcon"
:color="iconColor"
/>
<text class="label-text">{{ label }}</text>
<view v-if="label" class="label-seat"></view>
</slot>
</view>
<view class="uni-forms-item__content" :class="{ 'is-input-error-border': msg }"><slot></slot></view>
</view>
<view
v-if="msg"
class="uni-error-message"
:class="{ 'uni-error-msg--boeder': border }"
:style="{
paddingLeft: labelLeft
}"
>
<text class="uni-error-message-text">{{ showMsg === 'undertext' ? msg : '' }}</text>
</view>
</view>
</view>
</view>
</template>
<script>
/**
* Field 输入框
* @description 此组件可以实现表单的输入与校验包括 "text" "textarea" 类型
* @tutorial https://ext.dcloud.net.cn/plugin?id=21001
* @property {Boolean} required 是否必填左边显示红色"*"默认false
* @property {String} validateTrigger = [bind|submit] 校验触发器方式 默认 submit 可选
* @value bind 发生变化时触发
* @value submit 提交时触发
* @property {String } leftIcon label左边的图标 uni-ui 的图标名称
* @property {String } iconColor 左边通过icon配置的图标的颜色默认#606266
* @property {String } label 输入框左边的文字提示
* @property {Number } labelWidth label的宽度单位px默认65
* @property {String } labelAlign = [left|center|right] label的文字对齐方式默认left
* @value left label 左侧显示
* @value center label 居中
* @value right label 右侧对齐
* @property {String } labelPosition = [top|left] label的文字的位置默认left
* @value top 顶部显示 label
* @value left 左侧显示 label
* @property {String } errorMessage 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 } name 表单域的属性名在使用校验规则时必填
*/
export default {
name: 'uniFormsItem',
props: {
// 自定义内容
custom: {
type: Boolean,
default: false
},
// 是否显示报错信息
showMessage: {
type: Boolean,
default: true
},
name: String,
required: Boolean,
validateTrigger: {
type: String,
default: ''
},
leftIcon: String,
iconColor: {
type: String,
default: '#606266'
},
label: String,
// 左边标题的宽度单位px
labelWidth: {
type: [Number, String],
default: ''
},
// 对齐方式left|center|right
labelAlign: {
type: String,
default: ''
},
// lable的位置可选为 left-左边top-上边
labelPosition: {
type: String,
default: ''
},
errorMessage: {
type: [String, Boolean],
default: ''
},
// 表单校验规则
rules: {
type: Array,
default() {
return [];
}
}
},
data() {
return {
errorTop: false,
errorBottom: false,
labelMarginBottom: '',
errorWidth: '',
errMsg: '',
val: '',
labelPos: '',
labelWid: '',
labelAli: '',
showMsg: 'undertext',
border: false,
isFirstBorder: false,
isArray: false,
arrayField: ''
};
},
computed: {
msg() {
return this.errorMessage || this.errMsg;
},
fieldStyle() {
let style = {};
if (this.labelPos == 'top') {
style.padding = '0 0';
this.labelMarginBottom = '6px';
}
if (this.labelPos == 'left' && this.msg !== false && this.msg != '') {
style.paddingBottom = '0px';
this.errorBottom = true;
this.errorTop = false;
} else if (this.labelPos == 'top' && this.msg !== false && this.msg != '') {
this.errorBottom = false;
this.errorTop = true;
} else {
// style.paddingBottom = ''
this.errorTop = false;
this.errorBottom = false;
}
return style;
},
// uni不支持在computed中写style.justifyContent = 'center'的形式,故用此方法
justifyContent() {
if (this.labelAli === 'left') return 'flex-start';
if (this.labelAli === 'center') return 'center';
if (this.labelAli === 'right') return 'flex-end';
},
labelLeft() {
return (this.labelPos === 'left' ? parseInt(this.labelWid) : 0) + 'rpx';
}
},
watch: {
validateTrigger(trigger) {
this.formTrigger = trigger;
}
},
created() {
this.form = this.getForm();
this.group = this.getForm('uniGroup');
this.formRules = [];
this.formTrigger = this.validateTrigger;
// 处理 name是否数组
if (this.name && this.name.indexOf('[') !== -1 && this.name.indexOf(']') !== -1) {
this.isArray = true;
this.arrayField = this.name;
// fix by mehaotian 修改不修改的情况,动态值不检验的问题
this.form.formData[this.name] = this.form._getValue(this.name, '');
}
},
mounted() {
if (this.form) {
this.form.childrens.push(this);
}
this.init();
},
// #ifndef VUE3
destroyed() {
if (this.__isUnmounted) return;
this.unInit();
},
// #endif
// #ifdef VUE3
unmounted() {
this.__isUnmounted = true;
this.unInit();
},
// #endif
methods: {
init() {
if (this.form) {
let {
formRules,
validator,
formData,
value,
labelPosition,
labelWidth,
labelAlign,
errShowType
} = this.form;
this.labelPos = this.labelPosition ? this.labelPosition : labelPosition;
if (this.label) {
this.labelWid = this.labelWidth ? this.labelWidth : labelWidth || 140;
} else {
this.labelWid = this.labelWidth ? this.labelWidth : labelWidth || 'auto';
}
if (this.labelWid && this.labelWid !== 'auto') {
this.labelWid += 'rpx';
}
this.labelAli = this.labelAlign ? this.labelAlign : labelAlign;
// 判断第一个 item
if (!this.form.isFirstBorder) {
this.form.isFirstBorder = true;
this.isFirstBorder = true;
}
// 判断 group 里的第一个 item
if (this.group) {
if (!this.group.isFirstBorder) {
this.group.isFirstBorder = true;
this.isFirstBorder = true;
}
}
this.border = this.form.border;
this.showMsg = errShowType;
let name = this.isArray ? this.arrayField : this.name;
if (!name) return;
if (formRules && this.rules.length > 0) {
if (!formRules[name]) {
formRules[name] = {
rules: this.rules
};
}
validator.updateSchema(formRules);
}
this.formRules = formRules[name] || {};
this.validator = validator;
} else {
this.labelPos = this.labelPosition || 'left';
this.labelWid = this.labelWidth || 130;
this.labelAli = this.labelAlign || 'left';
}
},
unInit() {
if (this.form) {
this.form.childrens.forEach((item, index) => {
if (item === this) {
this.form.childrens.splice(index, 1);
delete this.form.formData[item.name];
}
});
}
},
/**
* 获取父元素实例
*/
getForm(name = 'uniForms') {
let parent = this.$parent;
let parentName = parent.$options.name;
while (parentName !== name) {
parent = parent.$parent;
if (!parent) return false;
parentName = parent.$options.name;
}
return parent;
},
/**
* 移除该表单项的校验结果
*/
clearValidate() {
this.errMsg = '';
},
/**
* 子组件调用 easyinput
* @param {Object} value
*/
setValue(value) {
let name = this.isArray ? this.arrayField : this.name;
if (name) {
if (this.errMsg) this.errMsg = '';
// 给组件赋值
this.form.formData[name] = this.form._getValue(name, value);
if (!this.formRules || (typeof this.formRules && JSON.stringify(this.formRules) === '{}')) return;
this.triggerCheck(this.form._getValue(this.name, value));
}
},
/**
* 校验规则
* @param {Object} value
*/
async triggerCheck(value, formTrigger) {
let promise = null;
this.errMsg = '';
// fix by mehaotian 解决没有检验规则的情况下,抛出错误的问题
if (!this.validator || Object.keys(this.formRules).length === 0) return;
const isNoField = this.isRequired(this.formRules.rules || []);
let isTrigger = this.isTrigger(
this.formRules.validateTrigger,
this.validateTrigger,
this.form.validateTrigger
);
let result = null;
if (!!isTrigger || formTrigger) {
let name = this.isArray ? this.arrayField : this.name;
result = await this.validator.validateUpdate(
{
[name]: value
},
this.form.formData
);
}
// 判断是否必填,非必填,不填不校验,填写才校验
if (!isNoField && (value === undefined || value === '')) {
result = null;
}
const inputComp = this.form.inputChildrens.find(child => child.rename === this.name);
if ((isTrigger || formTrigger) && result && result.errorMessage) {
if (inputComp) {
inputComp.errMsg = result.errorMessage;
}
if (this.form.errShowType === 'toast') {
uni.showToast({
title: result.errorMessage || '校验错误',
icon: 'none'
});
}
if (this.form.errShowType === 'modal') {
uni.showModal({
title: '提示',
content: result.errorMessage || '校验错误'
});
}
} else {
if (inputComp) {
inputComp.errMsg = '';
}
}
this.errMsg = !result ? '' : result.errorMessage;
// 触发validate事件
this.form.validateCheck(result ? result : null);
// typeof callback === 'function' && callback(result ? result : null);
// if (promise) return promise
return result ? result : null;
},
/**
* 触发时机
* @param {Object} event
*/
isTrigger(rule, itemRlue, parentRule) {
let rl = true;
// bind submit
if (rule === 'submit' || !rule) {
if (rule === undefined) {
if (itemRlue !== 'bind') {
if (!itemRlue) {
return parentRule === 'bind' ? true : false;
}
return false;
}
return true;
}
return false;
}
return true;
},
// 是否有必填字段
isRequired(rules) {
let isNoField = false;
for (let i = 0; i < rules.length; i++) {
const ruleData = rules[i];
if (ruleData.required) {
isNoField = true;
break;
}
}
return isNoField;
}
}
};
</script>
<style lang="scss">
.uni-forms-item {
position: relative;
padding: 0px;
text-align: left;
color: #333;
font-size: 14px;
// margin-bottom: 22px;
}
.uni-forms-item__box {
position: relative;
}
.uni-forms-item__inner {
/* #ifndef APP-NVUE */
display: flex;
/* #endif */
// flex-direction: row;
// align-items: center;
padding-bottom: 22px;
// margin-bottom: 22px;
}
.is-direction-left {
flex-direction: row;
}
.is-direction-top {
flex-direction: column;
}
.uni-forms-item__label {
/* #ifndef APP-NVUE */
display: flex;
flex-shrink: 0;
box-sizing: border-box;
/* #endif */
flex-direction: row;
align-items: center;
width: 65px;
// line-height: 2;
// margin-top: 3px;
padding: 5px 0;
height: 72rpx;
// margin-right: 5px;
.label-text {
font-size: 28rpx;
color: #333333;
}
.label-seat {
margin-right: 5px;
}
}
.uni-forms-item__content {
/* #ifndef APP-NVUE */
width: 100%;
box-sizing: border-box;
min-height: 36px;
/* #endif */
flex: 1;
}
.label-icon {
margin-right: 5px;
margin-top: -1px;
}
// 必填
.is-required {
// color: $uni-color-error;
color: #dd524d;
font-weight: bold;
}
.uni-error-message {
position: absolute;
bottom: 0px;
left: 0;
text-align: left;
}
.uni-error-message-text {
line-height: 44rpx;
color: #dd524d;
font-size: 24rpx;
}
.uni-error-msg--boeder {
position: relative;
bottom: 0;
line-height: 22px;
}
.is-input-error-border {
border-color: #dd524d;
}
.uni-forms-item--border {
margin-bottom: 0;
padding: 10px 0;
border-top: 1px #eee solid;
.uni-forms-item__inner {
padding: 0;
}
}
.uni-forms-item-error {
// padding-bottom: 0;
}
.is-first-border {
/* #ifndef APP-NVUE */
border: none;
/* #endif */
/* #ifdef APP-NVUE */
border-width: 0;
/* #endif */
}
.uni-forms--no-padding {
padding: 0;
}
</style>