lowcode-engine/packages/editor/src/skeleton/layouts/CenterArea/index.tsx

import React, { PureComponent } from 'react';

import Editor from '../../../framework/editor';
import './index.scss';
import AreaManager from '../../../framework/areaManager';

export interface CenterAreaProps {
  editor: Editor;
}

export default class CenterArea extends PureComponent<CenterAreaProps> {
  static displayName = 'LowcodeCenterArea';

  private editor: Editor;

  private areaManager: AreaManager;

  constructor(props) {
    super(props);
    this.editor = props.editor;
    this.areaManager = new AreaManager(this.editor, 'centerArea');
  }

  componentDidMount(): void {
    this.editor.on('skeleton.update', this.handleSkeletonUpdate);
  }

  componentWillUnmount(): void {
    this.editor.off('skeleton.update', this.handleSkeletonUpdate);
  }

  handleSkeletonUpdate = (): void => {
    // 当前区域插件状态改变是更新区域
    if (this.areaManager.isPluginStatusUpdate()) {
      this.forceUpdate();
    }
  };

  render(): React.ReactNode {
    const visiblePluginList = this.areaManager.getVisiblePluginList();
    return (
      <div className="lowcode-center-area">
        {visiblePluginList.map(
          (item): React.ReactNode => {
            const Comp = this.editor.components[item.pluginKey];
            return <Comp key={item.pluginKey} editor={this.editor} config={item} {...item.pluginProps} />;
          }
        )}
      </div>
    );
  }
}