IdeaSDK/examples/hello-plugin/src/core/layout.tsx

import type { PluginLayoutProps } from "@idea/plugin-sdk";
import type { ReactElement } from "react";
import { useMemo, useState } from "react";

let hasLoggedFirstLayoutRender = false;

export function HelloWorldLayout(props: PluginLayoutProps): ReactElement {
  const [localClicks, setLocalClicks] = useState(0);
  const hostState = useMemo(() => {
    return typeof props.state === "object" && props.state !== null && !Array.isArray(props.state)
      ? (props.state as Record<string, unknown>)
      : {};
  }, [props.state]);
  const persistedClicks =
    typeof hostState.clicks === "number" && Number.isFinite(hostState.clicks)
      ? hostState.clicks
      : 0;

  if (!hasLoggedFirstLayoutRender) {
    hasLoggedFirstLayoutRender = true;
    console.info("[hello-plugin] layout first render", {
      projectId: props.projectId,
      nodeId: props.nodeId,
      layoutType: props.layoutType,
      hasState: props.state !== undefined
    });
  }

  return (
    <section style={{ display: "grid", gap: 12, fontFamily: "system-ui, sans-serif" }}>
      <header>
        <h2 style={{ margin: 0, fontSize: 16 }}>Hello Plugin</h2>
        <p style={{ margin: "4px 0 0", color: "#667085", fontSize: 13 }}>
          React layout rendered by IdeA host React.
        </p>
      </header>
      <dl style={{ display: "grid", gap: 4, margin: 0, fontSize: 13 }}>
        <div>
          <dt style={{ color: "#667085" }}>Project</dt>
          <dd style={{ margin: 0 }}>{props.projectId}</dd>
        </div>
        <div>
          <dt style={{ color: "#667085" }}>Layout</dt>
          <dd style={{ margin: 0 }}>{props.layoutType}</dd>
        </div>
      </dl>
      <button
        type="button"
        onClick={() => {
          setLocalClicks((current) => current + 1);
          props.setState({ ...hostState, clicks: persistedClicks + 1 });
        }}
      >
        Persist click {persistedClicks} / local click {localClicks}
      </button>
    </section>
  );
}