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https://github.com/alibaba/lowcode-engine.git
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fix: rax perf
This commit is contained in:
响指
parent
bc183d1605
commit
3abe2ab060
11
packages/rax-render/src/comp/Div.ts
Normal file
11
packages/rax-render/src/comp/Div.ts
Normal file
@ -0,0 +1,11 @@
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import { createElement, PureComponent } from 'rax';
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export default class DivView extends PureComponent {
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static displayName = 'Div';
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static version = '0.0.0';
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render() {
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return createElement('div', this.props);
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}
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}
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@ -23,6 +23,7 @@ import {
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getFileCssName,
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} from '../utils';
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import VisualDom from '../comp/visualDom';
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import Div from '../comp/Div';
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import AppContext from '../context/appContext';
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import compWrapper from '../hoc/compWrapper';
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@ -248,185 +249,214 @@ export default class BaseEngine extends Component {
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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, self, parentInfo, idx) => {
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if (!schema) return null;
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// rax text prop 兼容处理
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if (schema.componentName === 'Text') {
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if (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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}
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const { __appHelper: appHelper, __components: components = {}, __componentsMap: componentsMap = {} } = this.props || {};
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const { engine } = this.context || {};
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if (isJSExpression(schema)) {
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return parseExpression(schema, self);
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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, idx) => this.__createVirtualDom(item, self, parentInfo, item && item.__ctx && item.__ctx.lunaKey ? '' : idx));
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}
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try {
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if (!schema) return null;
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if (schema.componentName === 'Text') { // 这个是不是不应该在这里处理
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if (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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}
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// 解析占位组件
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if (schema.componentName === 'Flagment' && schema.children) {
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const tarChildren = isJSExpression(schema.children) ? parseExpression(schema.children, self) : schema.children;
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return this.__createVirtualDom(tarChildren, self, parentInfo);
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}
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const { __appHelper: appHelper, __components: components = {} } = this.props || {};
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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 (isJSExpression(schema)) {
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return parseExpression(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 && item.__ctx && item.__ctx.lunaKey ? '' : 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.hidden) {
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return null;
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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.loop !== undefined) {
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return this.__createLoopVirtualDom(
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{
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...schema,
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loop: parseData(schema.loop, self),
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},
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if (schema.hidden) {
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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lunaKey
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schema.__ctx = {
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lunaKey: `luna${++scopeIdx}`,
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};
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scopeKey = schema.__ctx.lunaKey;
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} else {
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// 需要判断循环的情况
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scopeKey = schema.__ctx.lunaKey + (idx !== undefined ? `_${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 = 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 && engine.props.designMode) {
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otherProps.__designMode = engine.props.designMode;
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}
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const componentInfo = {};
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const props =
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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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// if (acceptsRef(Comp)) {
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otherProps.ref = (ref) => {
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this.$(props.fieldId, ref); // 收集ref
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const refProps = props.ref;
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if (refProps && typeof refProps === 'string') {
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this[refProps] = ref;
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}
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ref && engine && engine.props.onCompGetRef(schema, ref);
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};
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// }
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// scope需要传入到组件上
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if (scopeKey && this.__compScopes[scopeKey]) {
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props.__scope = this.__compScopes[scopeKey];
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}
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// FIXME 这里清除 key 是为了避免循环渲染中更改 key 导致的渲染重复
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props.key = '';
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if (schema.__ctx && schema.__ctx.lunaKey) {
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if (!isFileSchema(schema)) {
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engine && engine.props.onCompGetCtx(schema, self);
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}
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props.key = props.key || `${schema.__ctx.lunaKey}_${schema.__ctx.idx || 0}_${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 = 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) => 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 (
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<Div ref={ref} __designMode={engine.props.designMode}>
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{renderComp({ ...props, ...overlayProps })}
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</Div>
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);
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}
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// 虚拟dom显示
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if (componentInfo && 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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}
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return renderComp({ ...props, ...otherProps });
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} catch (e) {
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return engine.createElement(engine.getFaultComponent(), {
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error: e,
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schema,
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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 === undefined ? true : parseData(schema.condition, self);
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if (!condition) return null;
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};
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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lunaKey
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schema.__ctx = {
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lunaKey: `luna${++scopeIdx}`,
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};
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scopeKey = schema.__ctx.lunaKey;
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} else {
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// 需要判断循环的情况
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scopeKey = schema.__ctx.lunaKey + (idx !== undefined ? `_${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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getSchemaChildren = (schema) => {
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if (!schema || !schema.props) {
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return schema?.children;
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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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if (!schema.children) return schema.props.children;
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if (!schema.props.children) return schema.children;
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let _children = [].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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// 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 = 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 && engine.props.designMode) {
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otherProps.__designMode = engine.props.designMode;
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}
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const componentInfo = componentsMap[schema.componentName] || {};
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const props = 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) => {
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this.$(props.fieldId, ref); // 收集ref
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const refProps = props.ref;
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if (refProps && typeof refProps === 'string') {
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this[refProps] = ref;
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}
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engine && engine.props.onCompGetRef(schema, ref);
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};
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// scope需要传入到组件上
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if (scopeKey && this.__compScopes[scopeKey]) {
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props.__scope = this.__compScopes[scopeKey];
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}
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if (schema.__ctx && schema.__ctx.lunaKey) {
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if (!isFileSchema(schema)) {
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engine && engine.props.onCompGetCtx(schema, self);
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}
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props.key = props.key || `${schema.__ctx.lunaKey}_${schema.__ctx.idx || 0}_${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 (!isFileSchema(schema) && schema.children) {
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this.__createVirtualDom(
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isJSExpression(schema.children) ? parseExpression(schema.children, self) : schema.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) => engine.createElement(
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Comp,
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props,
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(!isFileSchema(schema) &&
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!!schema.children &&
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this.__createVirtualDom(
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isJSExpression(schema.children) ? parseExpression(schema.children, self) : schema.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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|| null,
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);
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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 (
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<div ref={ref} __designMode={engine.props.designMode}>
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{renderComp({ ...props, ...overlayProps })}
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</div>
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);
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}
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// 虚拟dom显示
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if (componentInfo && 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 (!parentList.includes(parentSchema.componentName) || parentComp !== components[parentSchema.componentName]) {
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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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}
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return renderComp({ ...props, ...otherProps });
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return _children;
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};
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__createLoopVirtualDom = (schema, self, parentInfo, idx) => {
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