jianxiaobai / react-json-editor-ui Goto Github PK

import { useState } from "react";
import JsonEditor from "react-json-editor-ui";
import "react-json-editor-ui/dist/react-json-editor-ui.cjs.development.css";

const App = () => {
  const initialData = {
    id: 1,
    title: "TestProject",
    arr: [],
  };

  let isInitial = true;

  const [undoAvailable, setUndoAvailable] = useState(false);
  const [redoAvailable, setRedoAvailable] = useState(false);

  const [undoData, setUndoData] = useState(null);
  const [redoData, setRedoData] = useState(null);
  const [data, setData] = useState(initialData);

  const logToConsole = () => {
    console.log("data:", data);
  };

  const handleChange = (newData, isManual?: "undo" | "redo") => {
    console.log("Changed!");

    if (isManual) {
      switch (isManual) {
        case "undo":
          setData(newData);
          break;
        case "redo":
          setData(newData);
          break;
        default:
          setData(newData);
      }
    } else {
      setData(newData);
    }

    isInitial = false;
    if (!isInitial) {
      setUndoAvailable(true);
    }
  };

  const handleUndo = () => {
    console.log("Undo!");

    setRedoData(data);
    handleChange(undoData, "undo");

    setRedoAvailable(true);
    setUndoAvailable(false);
  };

  const handleRedo = () => {
    console.log("Redo!");

    setUndoData(data);
    handleChange(redoData, "redo");

    setRedoAvailable(false);
    setUndoAvailable(true);
  };

  const resetData = () => {
    console.log("Reset!");

    setData(initialData);
    isInitial = true;
  };

  return (
    <div
      style={{ border: "2px solid black", margin: "1rem", padding: "0.25rem" }}
    >
      <div style={{ border: "2px solid black", padding: "0.5rem" }}>
        <JsonEditor
          data={data}
          onChange={(data) => {
            handleChange(data);
          }}
          optionsMap={{
            color: [
              { value: "red", label: "Red" },
              { value: "blue", label: "Blue" },
            ],
            city: [
              { value: "beijing", label: "Beijing" },
              { value: "shanghai", label: "Shanghai" },
            ],
          }}
        />
      </div>
      <button
        onClick={() => {
          logToConsole();
        }}
        style={{
          margin: "0.5rem",
          marginLeft: "0",
          padding: "0.25rem",
          cursor: "pointer",
        }}
      >
        Log to console
      </button>
      <button
        onClick={() => {
          resetData();
        }}
        style={{
          margin: "0.5rem",
          marginLeft: "0",
          padding: "0.25rem",
          cursor: "pointer",
        }}
      >
        Reset data
      </button>
      <div style={{ float: "right" }}>
        <button
          style={{
            margin: "0.5rem",
            marginRight: "0",
            padding: "0.25rem",
            ...(undoAvailable
              ? { cursor: "pointer" }
              : { cursor: "not-allowed" }),
          }}
          onClick={() => {
            handleUndo();
          }}
          disabled={!undoAvailable}
        >
          Undo
        </button>
        <button
          style={{
            margin: "0.5rem",
            marginRight: "0",
            padding: "0.25rem",
            ...(redoAvailable
              ? { cursor: "pointer" }
              : { cursor: "not-allowed" }),
          }}
          onClick={() => {
            handleRedo();
          }}
          disabled={!redoAvailable}
        >
          Redo
        </button>
      </div>
    </div>
  );
};

export default App;