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import { Vue, Component, Prop, Watch } from 'vue-property-decorator';
import './app-form-item.less';
@Component({})
export default class AppFormItem extends Vue {
/**
* 名称
*
* @type {string}
* @memberof AppFormItem
*/
@Prop() public caption!: string;
/**
* 错误信息
*
* @type {string}
* @memberof AppFormItem
*/
@Prop() public error?: string;
/**
* 标签位置
*
* @type {(string | 'BOTTOM' | 'LEFT' | 'NONE' | 'RIGHT' | 'TOP')}
* @memberof AppFormItem
*/
@Prop() public labelPos?: string | 'BOTTOM' | 'LEFT' | 'NONE' | 'RIGHT' | 'TOP';
/**
* 标签宽度
*
* @type {number}
* @memberof AppFormItem
*/
@Prop({}) public labelWidth!: number;
/**
* 是否显示标题
*
* @type {boolean}
* @memberof AppFormItem
*/
@Prop() public isShowCaption?: boolean;
/**
* 标签是否空白
*
* @type {boolean}
* @memberof AppFormItem
*/
@Prop() public isEmptyCaption?: boolean;
/**
* 表单项名称
*
* @type {string}
* @memberof AppFormItem
*/
@Prop() public name!: string;
/**
* 内置样式
*
* @type {string}
* @memberof AppFormItem
*/
@Prop() public uiStyle?: string;
/**
* 表单项值规则
*
* @type {string}
* @memberof AppFormItem
*/
@Prop() public itemRules!: string;
/**
* 值规则数组
*
* @type {any[]}
* @memberof AppFormItem
*/
public rules: any[] = [];
/**
* 是否必填
*
* @type {boolean}
* @memberof AppFormItem
*/
public required: boolean = false;
/**
* 表单项值规则监控
*
* @param {*} newVal
* @param {*} oldVal
* @memberof AppFormItem
*/
@Watch('itemRules')
onItemRulesChange(newVal: any, oldVal: any) {
if (newVal) {
try {
this.rules = [];
const _rules: any[] = JSON.parse(newVal);
this.rules = [..._rules];
this.rules.some((rule: any) => {
if (rule.hasOwnProperty('required')) {
this.required = rule.required;
return true;
}
return false;
});
} catch (error) {
}
}
}
/**
* 计算样式
*
* @readonly
* @type {string []}
* @memberof AppFormItem
*/
get classes(): string[] {
return [
'app-form-item',
Object.is(this.labelPos, 'TOP') ? 'app-form-item-label-top' : ''
];
}
/**
* vue 生命周期
*
* @memberof AppFormItem
*/
public mounted() {
if (this.itemRules) {
try {
const _rules: any[] = JSON.parse(this.itemRules);
this.rules = [..._rules];
this.rules.some((rule: any) => {
if (rule.hasOwnProperty('required')) {
this.required = rule.required;
return true;
}
return false;
});
} catch (error) {
}
}
}
/**
* 绘制内容
*
* @returns
* @memberof AppFormItem
*/
public render() {
if (Object.is(this.uiStyle, 'STYLE2')) {
return (
<app-form-item2
caption={this.caption}
error={this.error}
labelPos={this.labelPos}
labelWidth={this.labelWidth}
isShowCaption={this.isShowCaption}
isEmptyCaption={this.isEmptyCaption}
name={this.name}
uiStyle={this.uiStyle}
itemRules={this.itemRules}>
{this.$slots.default}
</app-form-item2>
);
} else {
return (
<form-item
prop={this.name}
error={this.error}
required={this.required}
rules={this.rules}
class={this.classes}
label-width={this.isShowCaption ? !Object.is(this.labelPos, 'TOP') ? this.labelWidth : null : 0}>
{
this.isShowCaption && this.labelWidth > 0 ?
<span slot='label'>
{this.isEmptyCaption ? '' : this.caption}
</span>
: ''
}
{this.$slots.default}
</form-item>
);
}
}
}