Building a Code Editor with Prism.js and Recording/Replaying Features

How can you create a custom code editor using HTML, CSS, and JavaScript that integrates Prism.js for syntax highlighting and also allows users to record and replay their code editing sessions, including the recorded code changes and the time duration for each change?

Asked by: Team_Jack

Answers:

You can leverage the power of HTML, CSS, and JavaScript.

HTML:

<div id="editor"></div>
<button id="record">Start Recording</button>
<button id="stop">Stop Recording</button>
<button id="replay">Replay Session</button>

CSS:

#editor {
  width: 100%;
  height: 300px;
  border: 1px solid #ccc;
  font-family: monospace;
}

button {
  margin-top: 10px;
}

JavaScript:

// Include Prism.js CDN in your HTML file before this JavaScript code

// Initialize the code editor
const editor = CodeMirror(document.getElementById("editor"), {
  lineNumbers: true,
});

// Initialize the recording variables
let isRecording = false;
let recordingData = [];

// Function to handle code changes
function handleCodeChange(instance, changeObj) {
  if (isRecording) {
    const timestamp = new Date().getTime();
    recordingData.push({ timestamp, changeObj });
  }
}

// Attach code change event listener
editor.on("change", handleCodeChange);

// Start recording
document.getElementById("record").addEventListener("click", function () {
  isRecording = true;
  recordingData = [];
});

// Stop recording
document.getElementById("stop").addEventListener("click", function () {
  isRecording = false;
});

// Replay session
document.getElementById("replay").addEventListener("click", function () {
  let currentIndex = 0;

  function replayNextChange() {
    if (currentIndex < recordingData.length) {
      const { timestamp, changeObj } = recordingData[currentIndex];
      setTimeout(function () {
        editor.replaceRange(
          changeObj.text.join("\n"),
          changeObj.from,
          changeObj.to
        );
        currentIndex++;
        replayNextChange();
      }, timestamp - (currentIndex === 0 ? 0 : recordingData[currentIndex - 1].timestamp));
    }
  }

  replayNextChange();
});

This example code sets up a code editor using the CodeMirror library, integrates Prism.js for syntax highlighting (assuming you've included Prism.js CDN in your HTML file), and adds functionality for recording and replaying code editing sessions.

Remember to include the necessary CSS and JavaScript files for CodeMirror and Prism.js in your HTML file.

Prism.js CDN:

<script src="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/prism.min.js"></script>
Answered by: WEB_IS_FUN

Answer:

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