mirror of
https://github.com/alibaba/lowcode-engine.git
synced 2026-03-01 05:30:40 +00:00
780 lines
25 KiB
TypeScript
780 lines
25 KiB
TypeScript
import classnames from 'classnames';
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import Debug from 'debug';
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import { create as createDataSourceEngine } from '@ali/lowcode-datasource-engine/interpret';
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import adapter from '../adapter';
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import divFactory from '../components/Div';
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import visualDomFactory from '../components/VisualDom';
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import contextFactory from '../context';
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import {
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forEach,
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getValue,
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parseData,
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parseExpression,
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parseI18n,
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isEmpty,
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isSchema,
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isFileSchema,
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isJSExpression,
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isJSSlot,
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isJSFunction,
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transformArrayToMap,
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transformStringToFunction,
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checkPropTypes,
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getI18n,
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acceptsRef,
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getFileCssName,
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capitalizeFirstLetter,
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DataHelper,
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isI18n,
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isVariable,
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} from '../utils';
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import { IRendererProps, ISchema, IInfo, ComponentModel, IRenderer } from '../types';
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import { compWrapper } from '../hoc';
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export default function baseRenererFactory() {
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const { BaseRenderer: customBaseRenderer } = adapter.getRenderers();
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if (customBaseRenderer) {
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return customBaseRenderer;
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}
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const { Component, createElement } = adapter.getRuntime();
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const Div = divFactory();
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const VisualDom = visualDomFactory();
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const AppContext = contextFactory();
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const debug = Debug('renderer:base');
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const DESIGN_MODE = {
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EXTEND: 'extend',
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BORDER: 'border',
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PREVIEW: 'preview',
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};
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const OVERLAY_LIST = ['Dialog', 'Overlay', 'Animate', 'ConfigProvider'];
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let scopeIdx = 0;
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return class BaseRenderer extends Component implements IRenderer {
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static dislayName = 'base-renderer';
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static defaultProps = {
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__schema: {},
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};
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static contextType = AppContext;
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__namespace = 'base';
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constructor(props: IRendererProps, context: any) {
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super(props, context);
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this.__beforeInit(props);
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this.__init(props);
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this.__afterInit(props);
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this.__initDebug();
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this.__debug(`constructor - ${props?.__schema?.fileName}`);
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}
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__beforeInit(/* props: IRendererProps */) { }
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__init(props: IRendererProps) {
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this.appHelper = props.__appHelper;
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this.__compScopes = {};
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this.__instanceMap = {};
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this.__bindCustomMethods(props);
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this.__initI18nAPIs();
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}
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__afterInit(/* props: IRendererProps */) { }
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static getDerivedStateFromProps(props: IRendererProps, state: any) {
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debug('getDerivedStateFromProps');
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const func = props?.__schema?.lifeCycles?.getDerivedStateFromProps;
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if (func) {
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return func(props, state);
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}
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return null;
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}
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async getSnapshotBeforeUpdate() {
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this.__setLifeCycleMethods('getSnapshotBeforeUpdate', arguments);
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this.__debug(`getSnapshotBeforeUpdate - ${this.props?.__schema?.fileName}`);
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}
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async componentDidMount() {
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this.reloadDataSource();
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this.__setLifeCycleMethods('componentDidMount', arguments);
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this.__debug(`componentDidMount - ${this.props?.__schema?.fileName}`);
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}
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async componentDidUpdate(...args: any) {
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this.__setLifeCycleMethods('componentDidUpdate', args);
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this.__debug(`componentDidUpdate - ${this.props.__schema.fileName}`);
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}
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async componentWillUnmount(...args: any) {
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this.__setLifeCycleMethods('componentWillUnmount', args);
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this.__debug(`componentWillUnmount - ${this.props?.__schema?.fileName}`);
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}
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async componentDidCatch(e: any) {
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this.__setLifeCycleMethods('componentDidCatch', arguments);
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console.warn(e);
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}
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reloadDataSource = () => new Promise((resolve, reject) => {
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this.__debug('reload data source');
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if (!this.__dataHelper) {
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this.__showPlaceholder = false;
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return resolve({});
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}
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this.__dataHelper
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.getInitData()
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.then((res: any) => {
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this.__showPlaceholder = false;
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if (isEmpty(res)) {
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this.forceUpdate();
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return resolve({});
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}
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this.setState(res, resolve);
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})
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.catch((err: Error) => {
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if (this.__showPlaceholder) {
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this.__showPlaceholder = false;
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this.forceUpdate();
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}
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reject(err);
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});
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});
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__setLifeCycleMethods = (method: string, args?: any) => {
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const lifeCycleMethods = getValue(this.props.__schema, 'lifeCycles', {});
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let fn = lifeCycleMethods[method];
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if (fn) {
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// TODO, cache
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if (isJSExpression(fn) || isJSFunction(fn)) {
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fn = parseExpression(fn, this);
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}
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if (typeof fn !== 'function') {
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console.error(`生命周期${method}类型不符`, fn);
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return;
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}
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try {
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return fn.apply(this, args);
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} catch (e) {
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console.error(`[${this.props.__schema.componentName}]生命周期${method}出错`, e);
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}
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}
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};
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__bindCustomMethods = (props = this.props) => {
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const { __schema } = props;
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const customMethodsList = Object.keys(__schema.methods || {}) || [];
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this.__customMethodsList
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&& this.__customMethodsList.forEach((item: any) => {
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if (!customMethodsList.includes(item)) {
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delete this[item];
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}
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});
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this.__customMethodsList = customMethodsList;
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forEach(__schema.methods, (val: any, key: string) => {
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if (isJSExpression(val) || isJSFunction(val)) {
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val = parseExpression(val, this);
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}
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if (typeof val !== 'function') {
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console.error(`自定义函数${key}类型不符`, val);
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return;
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}
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this[key] = val.bind(this);
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});
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};
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__generateCtx = (ctx: object) => {
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const { pageContext, compContext } = this.context;
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const obj = {
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page: pageContext,
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component: compContext,
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...ctx,
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};
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forEach(obj, (val: any, key: string) => {
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this[key] = val;
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});
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};
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__parseData = (data: any, ctx?: object) => {
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const { __ctx } = this.props;
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return parseData(data, ctx || __ctx || this);
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};
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__initDataSource = (props = this.props) => {
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const schema = props.__schema || {};
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const dataSource = (schema && schema.dataSource) || {};
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// requestHandlersMap 存在才走数据源引擎方案
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if (props?.__appHelper?.requestHandlersMap) {
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const { dataSourceMap, reloadDataSource } = createDataSourceEngine(dataSource, (this as any), {
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requestHandlersMap: props.__appHelper.requestHandlersMap,
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});
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this.dataSourceMap = dataSourceMap;
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this.reloadDataSource = () => new Promise((resolve) => {
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this.__debug('reload data source');
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// this.__showPlaceholder = true;
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reloadDataSource().then(() => {
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// this.__showPlaceholder = false;
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// @TODO 是否需要 forceUpate
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// this.forceUpdate();
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resolve({});
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});
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});
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} else {
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const appHelper = props.__appHelper;
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this.__dataHelper = new DataHelper(this, dataSource, appHelper, (config: any) => this.__parseData(config));
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this.dataSourceMap = this.__dataHelper.dataSourceMap;
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this.reloadDataSource = () => new Promise((resolve, reject) => {
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this.__debug('reload data source');
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if (!this.__dataHelper) {
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// this.__showPlaceholder = false;
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return resolve({});
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}
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this.__dataHelper
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.getInitData()
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.then((res: any) => {
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// this.__showPlaceholder = false;
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if (isEmpty(res)) {
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this.forceUpdate();
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return resolve({});
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}
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this.setState(res, resolve);
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})
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.catch((err: Error) => {
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if (this.__showPlaceholder) {
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this.__showPlaceholder = false;
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this.forceUpdate();
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}
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reject(err);
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});
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});
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}
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// 设置容器组件占位，若设置占位则在初始异步请求完成之前用loading占位且不渲染容器组件内部内容
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// @TODO __showPlaceholder 的逻辑一旦开启就关不掉，先注释掉了
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/* this.__showPlaceholder = this.__parseData(schema.props && schema.props.autoLoading) && (dataSource.list || []).some(
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(item) => !!this.__parseData(item.isInit),
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); */
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};
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__initI18nAPIs = () => {
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this.i18n = (key: string, values = {}) => {
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const { locale, messages } = this.props;
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return getI18n(key, values, locale, messages);
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};
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this.getLocale = () => this.props.locale;
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this.setLocale = (loc: string) => this.appHelper?.utils?.i18n?.setLocale && this.appHelper?.utils?.i18n?.setLocale(loc);
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};
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__render = () => {
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const schema = this.props.__schema;
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this.__setLifeCycleMethods('render');
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const { engine } = this.context;
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if (engine) {
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engine.props.onCompGetCtx(schema, this);
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// 画布场景才需要每次渲染bind自定义方法
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if (engine.props.designMode) {
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this.__bindCustomMethods();
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this.dataSourceMap = this.__dataHelper && this.__dataHelper.updateConfig(schema.dataSource);
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}
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}
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};
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__getRef = (ref: any) => {
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const { engine } = this.context;
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const { __schema } = this.props;
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ref && engine?.props?.onCompGetRef(__schema, ref);
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this.__ref = ref;
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};
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getSchemaChildren = (schema: ISchema) => {
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if (!schema || !schema.props) {
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return schema?.children;
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}
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if (!schema.children) return schema.props.children;
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if (!schema.props.children) return schema.children;
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let _children = ([] as ComponentModel[]).concat(schema.children);
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if (Array.isArray(schema.props.children)) {
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_children = _children.concat(schema.props.children);
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} else {
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_children.push(schema.props.children);
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}
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return _children;
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};
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__createDom = () => {
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const { __schema, __ctx, __components = {} } = this.props;
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const self: any = {};
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self.__proto__ = __ctx || this;
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const _children = this.getSchemaChildren(__schema);
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return this.__createVirtualDom(_children, self, ({
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schema: __schema,
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Comp: __components[__schema.componentName],
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} as IInfo));
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};
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// 将模型结构转换成react Element
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// schema 模型结构
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// self 为每个渲染组件构造的上下文，self是自上而下继承的
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// parentInfo 父组件的信息，包含schema和Comp
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// idx 若为循环渲染的循环Index
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__createVirtualDom = (schema: any, self: any, parentInfo: IInfo, idx: string | number = ''): any => {
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const { engine } = this.context || {};
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try {
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if (!schema) return null;
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// FIXME
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if (schema.componentName === 'Text' && typeof schema.props.text === 'string') {
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schema = { ...schema };
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schema.children = [schema.props.text];
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}
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const { __appHelper: appHelper, __components: components = {} } = this.props || {};
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if (isJSExpression(schema)) {
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return parseExpression(schema, self);
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}
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if (isI18n(schema)) {
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return parseI18n(schema, self);
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}
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if (isJSSlot(schema)) {
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return this.__createVirtualDom(schema.value, self, parentInfo);
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}
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if (typeof schema === 'string') return schema;
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if (typeof schema === 'number' || typeof schema === 'boolean') {
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return schema.toString();
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}
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if (Array.isArray(schema)) {
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if (schema.length === 1) return this.__createVirtualDom(schema[0], self, parentInfo);
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return schema.map((item, idy) => this.__createVirtualDom(item, self, parentInfo, item?.__ctx?.lceKey ? '' : idy));
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}
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// FIXME
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const _children = this.getSchemaChildren(schema);
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// 解析占位组件
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if (schema.componentName === 'Flagment' && _children) {
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const tarChildren = isJSExpression(_children) ? parseExpression(_children, self) : _children;
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return this.__createVirtualDom(tarChildren, self, parentInfo);
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}
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if (schema.$$typeof) {
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return schema;
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}
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if (!isSchema(schema)) return null;
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let Comp = components[schema.componentName] || engine.getNotFoundComponent();
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if (schema.hidden && engine?.props?.designMode) {
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return null;
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}
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if (schema.loop != null) {
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const loop = parseData(schema.loop, self);
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if ((Array.isArray(loop) && loop.length > 0) || isJSExpression(loop)) {
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return this.__createLoopVirtualDom(
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{
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...schema,
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loop,
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},
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self,
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parentInfo,
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idx,
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);
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}
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}
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const condition = schema.condition == null ? true : parseData(schema.condition, self);
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if (!condition) return null;
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let scopeKey = '';
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// 判断组件是否需要生成scope，且只生成一次，挂在this.__compScopes上
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if (Comp.generateScope) {
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const key = parseExpression(schema.props.key, self);
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if (key) {
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// 如果组件自己设置key则使用组件自己的key
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scopeKey = key;
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} else if (!schema.__ctx) {
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// 在生产环境schema没有__ctx上下文，需要手动生成一个lceKey
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schema.__ctx = {
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lceKey: `lce${++scopeIdx}`,
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};
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scopeKey = schema.__ctx.lceKey;
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} else {
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// 需要判断循环的情况
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scopeKey = schema.__ctx.lceKey + (idx !== undefined ? `_${idx}` : '');
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}
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if (!this.__compScopes[scopeKey]) {
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this.__compScopes[scopeKey] = Comp.generateScope(this, schema);
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}
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}
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// 如果组件有设置scope，需要为组件生成一个新的scope上下文
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if (scopeKey && this.__compScopes[scopeKey]) {
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const compSelf = { ...this.__compScopes[scopeKey] };
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compSelf.__proto__ = self;
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self = compSelf;
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}
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// 容器类组件的上下文通过props传递，避免context传递带来的嵌套问题
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const otherProps: any = isFileSchema(schema)
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? {
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__schema: schema,
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__appHelper: appHelper,
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__components: components,
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}
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: {};
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if (engine?.props?.designMode) {
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otherProps.__designMode = engine.props.designMode;
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}
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const componentInfo: any = {};
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const props: any =
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this.__parseProps(schema.props, self, '', {
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schema,
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Comp,
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componentInfo: {
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...componentInfo,
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props: transformArrayToMap(componentInfo.props, 'name'),
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},
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}) || {};
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// 对于可以获取到ref的组件做特殊处理
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if (!acceptsRef(Comp)) {
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Comp = compWrapper(Comp);
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}
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otherProps.ref = (ref: any) => {
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this.$(props.fieldId, ref); // 收集ref
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const refProps = props.ref;
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if (refProps && typeof refProps === 'string') {
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this[refProps] = ref;
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}
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ref && engine?.props?.onCompGetRef(schema, ref);
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};
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// scope需要传入到组件上
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if (scopeKey && this.__compScopes[scopeKey]) {
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props.__scope = this.__compScopes[scopeKey];
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}
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// FIXME 这里清除 key 是为了避免循环渲染中更改 key 导致的渲染重复
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props.key = '';
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if (schema?.__ctx?.lceKey) {
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if (!isFileSchema(schema)) {
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engine?.props?.onCompGetCtx(schema, self);
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}
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props.key = props.key || `${schema.__ctx.lceKey}_${schema.__ctx.idx || 0}_${idx !== undefined ? idx : ''}`;
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} else if (typeof idx === 'number' && !props.key) {
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props.key = idx;
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}
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props.__id = schema.id;
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if (!props.key) {
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props.key = props.__id;
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}
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let child: any = null;
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if (/*! isFileSchema(schema) && */_children) {
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child = this.__createVirtualDom(
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isJSExpression(_children) ? parseExpression(_children, self) : _children,
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self,
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{
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schema,
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Comp,
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},
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);
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}
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const renderComp = (props: any) => engine.createElement(Comp, props, child);
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// 设计模式下的特殊处理
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if (engine && [DESIGN_MODE.EXTEND, DESIGN_MODE.BORDER].includes(engine.props.designMode)) {
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// 对于overlay,dialog等组件为了使其在设计模式下显示，外层需要增加一个div容器
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if (OVERLAY_LIST.includes(schema.componentName)) {
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const { ref, ...overlayProps } = otherProps;
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return createElement(Div, {
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ref,
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__designMode: engine.props.designMode,
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}, renderComp({ ...props, ...overlayProps }));
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}
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// 虚拟dom显示
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if (componentInfo?.parentRule) {
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const parentList = componentInfo.parentRule.split(',');
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const { schema: parentSchema, Comp: parentComp } = parentInfo;
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if (
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!parentList.includes(parentSchema.componentName) ||
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parentComp !== components[parentSchema.componentName]
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) {
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props.__componentName = schema.componentName;
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Comp = VisualDom;
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} else {
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// 若虚拟dom在正常的渲染上下文中，就不显示设计模式了
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props.__disableDesignMode = true;
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}
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}
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||
}
|
||
return renderComp({ ...props, ...otherProps });
|
||
} catch (e) {
|
||
return engine.createElement(engine.getFaultComponent(), {
|
||
error: e,
|
||
schema,
|
||
self,
|
||
parentInfo,
|
||
idx,
|
||
});
|
||
}
|
||
};
|
||
|
||
__createLoopVirtualDom = (schema: any, self: any, parentInfo: IInfo, idx: number | string) => {
|
||
if (isFileSchema(schema)) {
|
||
console.warn('file type not support Loop');
|
||
return null;
|
||
}
|
||
if (!Array.isArray(schema.loop)) return null;
|
||
const itemArg = (schema.loopArgs && schema.loopArgs[0]) || 'item';
|
||
const indexArg = (schema.loopArgs && schema.loopArgs[1]) || 'index';
|
||
return schema.loop.map((item: string[], i: number) => {
|
||
const loopSelf: any = {
|
||
[itemArg]: item,
|
||
[indexArg]: i,
|
||
};
|
||
loopSelf.__proto__ = self;
|
||
return this.__createVirtualDom(
|
||
{
|
||
...schema,
|
||
loop: undefined,
|
||
},
|
||
loopSelf,
|
||
parentInfo,
|
||
idx ? `${idx}_${i}` : i,
|
||
);
|
||
});
|
||
};
|
||
|
||
__parseProps = (props: any, self: any, path: string, info: IInfo): any => {
|
||
const { schema, Comp, componentInfo = {} } = info;
|
||
const propInfo = getValue(componentInfo.props, path);
|
||
// FIXME! 将这行逻辑外置，解耦，线上环境不要验证参数，调试环境可以有，通过传参自定义
|
||
const propType = propInfo?.extra?.propType;
|
||
const ignoreParse = schema.__ignoreParse || [];
|
||
const checkProps = (value: any) => {
|
||
if (!propType) return value;
|
||
return checkPropTypes(value, path, propType, componentInfo.name) ? value : undefined;
|
||
};
|
||
|
||
const parseReactNode = (data: any, params: any) => {
|
||
if (isEmpty(params)) {
|
||
return checkProps(this.__createVirtualDom(data, self, ({ schema, Comp } as IInfo)));
|
||
}
|
||
return checkProps(function () {
|
||
const args: any = {};
|
||
if (Array.isArray(params) && params.length) {
|
||
params.forEach((item, idx) => {
|
||
if (typeof item === 'string') {
|
||
args[item] = arguments[idx];
|
||
} else if (item && typeof item === 'object') {
|
||
args[item.name] = arguments[idx];
|
||
}
|
||
});
|
||
}
|
||
args.__proto__ = self;
|
||
return self.__createVirtualDom(data, args, { schema, Comp });
|
||
});
|
||
};
|
||
|
||
// 判断是否需要解析变量
|
||
if (
|
||
ignoreParse.some((item: any) => {
|
||
if (item instanceof RegExp) {
|
||
return item.test(path);
|
||
}
|
||
return item === path;
|
||
})
|
||
) {
|
||
return checkProps(props);
|
||
}
|
||
if (isJSExpression(props)) {
|
||
props = parseExpression(props, self);
|
||
// 只有当变量解析出来为模型结构的时候才会继续解析
|
||
if (!isSchema(props) && !isJSSlot(props)) return checkProps(props);
|
||
}
|
||
|
||
const handleLegaoI18n = (props: any) => props[props.use || 'zh_CN'];
|
||
|
||
// 兼容乐高设计态 i18n 数据
|
||
if (isI18n(props)) {
|
||
const i18nProp = handleLegaoI18n(props);
|
||
if (i18nProp) {
|
||
props = i18nProp;
|
||
} else {
|
||
return parseI18n(props, self);
|
||
}
|
||
}
|
||
|
||
// 兼容乐高设计态的变量绑定
|
||
if (isVariable(props)) {
|
||
props = props.value;
|
||
if (isI18n(props)) {
|
||
props = handleLegaoI18n(props);
|
||
}
|
||
}
|
||
|
||
if (isJSFunction(props)) {
|
||
props = transformStringToFunction(props.value);
|
||
}
|
||
if (isJSSlot(props)) {
|
||
const { params, value } = props;
|
||
if (!isSchema(value) || isEmpty(value)) return undefined;
|
||
return parseReactNode(value, params);
|
||
}
|
||
// 兼容通过componentInfo判断的情况
|
||
if (isSchema(props)) {
|
||
const isReactNodeFunction = !!(
|
||
propInfo?.type === 'ReactNode'
|
||
&& propInfo?.props?.type === 'function'
|
||
);
|
||
|
||
const isMixinReactNodeFunction = !!(
|
||
propInfo?.type === 'Mixin'
|
||
&& propInfo?.props?.types?.indexOf('ReactNode') > -1
|
||
&& propInfo?.props?.reactNodeProps?.type === 'function'
|
||
);
|
||
return parseReactNode(
|
||
props,
|
||
isReactNodeFunction
|
||
? propInfo.props.params
|
||
: isMixinReactNodeFunction
|
||
? propInfo.props.reactNodeProps.params
|
||
: null,
|
||
);
|
||
}
|
||
if (Array.isArray(props)) {
|
||
return checkProps(props.map((item, idx) => this.__parseProps(item, self, path ? `${path}.${idx}` : `${idx}`, info)));
|
||
}
|
||
if (typeof props === 'function') {
|
||
return checkProps(props.bind(self));
|
||
}
|
||
if (props && typeof props === 'object') {
|
||
if (props.$$typeof) return checkProps(props);
|
||
const res: any = {};
|
||
forEach(props, (val: any, key: string) => {
|
||
if (key.startsWith('__')) {
|
||
res[key] = val;
|
||
return;
|
||
}
|
||
res[key] = this.__parseProps(val, self, path ? `${path}.${key}` : key, info);
|
||
});
|
||
return checkProps(res);
|
||
}
|
||
if (typeof props === 'string') {
|
||
return checkProps(props.trim());
|
||
}
|
||
return checkProps(props);
|
||
};
|
||
|
||
$(filedId: string, instance?: any) {
|
||
this.__instanceMap = this.__instanceMap || {};
|
||
if (!filedId) {
|
||
return this.__instanceMap;
|
||
}
|
||
if (instance) {
|
||
this.__instanceMap[filedId] = instance;
|
||
}
|
||
return this.__instanceMap[filedId];
|
||
}
|
||
|
||
__initDebug = () => {
|
||
this.__logger = Debug(`renderer:${this.__namespace || 'base'}`);
|
||
};
|
||
|
||
__debug = (msg = '') => {
|
||
if (this.__logger) {
|
||
this.__logger(`${this.__namespace}.${msg}`);
|
||
}
|
||
};
|
||
|
||
__renderContextProvider = (customProps?: object, children?: any) => {
|
||
customProps = customProps || {};
|
||
children = children || this.__createDom();
|
||
return createElement(AppContext.Provider, {
|
||
value: {
|
||
...this.context,
|
||
blockContext: this,
|
||
...customProps,
|
||
},
|
||
children,
|
||
});
|
||
};
|
||
|
||
__renderContextConsumer = (children: any) => {
|
||
return createElement(AppContext.Consumer, {}, children);
|
||
};
|
||
|
||
__renderComp(Comp: any, ctxProps: object) {
|
||
const { __schema } = this.props;
|
||
const data = this.__parseData(__schema?.props);
|
||
const { className } = data;
|
||
const { engine } = this.context || {};
|
||
if (!engine) {
|
||
return null;
|
||
}
|
||
const child = engine.createElement(
|
||
Comp || Div,
|
||
{
|
||
...data,
|
||
...this.props,
|
||
ref: this.__getRef,
|
||
className: classnames(getFileCssName(__schema?.fileName), className, this.props.className),
|
||
__id: __schema?.id,
|
||
},
|
||
this.__createDom(),
|
||
);
|
||
return this.__renderContextProvider(ctxProps, child);
|
||
}
|
||
|
||
__renderContent(children: any) {
|
||
const { __schema } = this.props;
|
||
const props = this.__parseData(__schema.props);
|
||
const { id, className, style = {} } = props;
|
||
return createElement('div', {
|
||
ref: this.__getRef,
|
||
className: classnames(`lce-${this.__namespace}`, getFileCssName(__schema.fileName), className, this.props.className),
|
||
id: this.props.id || id,
|
||
style: { ...style, ...(typeof this.props.style === 'object' ? this.props.style : {}) },
|
||
}, children);
|
||
}
|
||
|
||
__checkSchema = (schema: ISchema, extraComponents: string | string[] = []) => {
|
||
if (typeof extraComponents === 'string') {
|
||
extraComponents = [extraComponents];
|
||
}
|
||
|
||
const buitin = capitalizeFirstLetter(this.__namespace);
|
||
const componentNames = [buitin, ...extraComponents];
|
||
return !isSchema(schema, true) || !componentNames.includes(schema.componentName);
|
||
};
|
||
|
||
get requestHandlersMap() {
|
||
return this.appHelper?.requestHandlersMap;
|
||
}
|
||
|
||
get utils() {
|
||
return this.appHelper?.utils;
|
||
}
|
||
|
||
get constants() {
|
||
return this.appHelper?.constants;
|
||
}
|
||
|
||
get history() {
|
||
return this.appHelper?.history;
|
||
}
|
||
|
||
get location() {
|
||
return this.appHelper?.location;
|
||
}
|
||
|
||
get match() {
|
||
return this.appHelper?.match;
|
||
}
|
||
|
||
render() {
|
||
return null;
|
||
}
|
||
};
|
||
}
|