Kullanıcının ekranı nasıl kaydedilir?

François Beaufort
François Beaufort
GitHub

Web platformunda Screen Capture API ile sekmeleri, pencereleri ve ekranları paylaşabilirsiniz. getDisplayMedia() yöntemi, kullanıcının medya akışı olarak yakalamak üzere bir ekran seçmesine olanak tanır. Bu akış daha sonra MediaRecorder API ile kaydedilebilir veya ağ üzerinden başkalarıyla paylaşılabilir. Kayıt, showOpenFilePicker() yöntemiyle yerel bir dosyaya kaydedilebilir.

Aşağıdaki örnekte kullanıcının ekranını WebM biçiminde nasıl kaydedebileceğiniz, aynı sayfada yerel olarak nasıl önizleyebileceğiniz ve kaydı kullanıcının dosya sistemine nasıl kaydedebileceğiniz gösterilmektedir.

let stream;
let recorder;

shareScreenButton.addEventListener("click", async () => {
  // Prompt the user to share their screen.
  stream = await navigator.mediaDevices.getDisplayMedia();
  recorder = new MediaRecorder(stream);
  // Preview the screen locally.
  video.srcObject = stream;
});

stopShareScreenButton.addEventListener("click", () => {
  // Stop the stream.
  stream.getTracks().forEach(track => track.stop());
  video.srcObject = null;
});

startRecordButton.addEventListener("click", async () => {
  // For the sake of more legible code, this sample only uses the
  // `showSaveFilePicker()` method. In production, you need to
  // cater for browsers that don't support this method, as
  // outlined in https://web.dev/patterns/files/save-a-file/.

  // Prompt the user to choose where to save the recording file.
  const suggestedName = "screen-recording.webm";
  const handle = await window.showSaveFilePicker({ suggestedName });
  const writable = await handle.createWritable();

  // Start recording.
  recorder.start();
  recorder.addEventListener("dataavailable", async (event) => {
    // Write chunks to the file.
    await writable.write(event.data);
    if (recorder.state === "inactive") {
      // Close the file when the recording stops.
      await writable.close();
    }
  });
});

stopRecordButton.addEventListener("click", () => {
  // Stop the recording.
  recorder.stop();
});

Tarayıcı desteği

MediaDevices.getDisplayMedia()

Tarayıcı Desteği

  • 72
  • 79
  • 66
  • 13

Kaynak

MediaRecorder API'sı

Tarayıcı Desteği

  • 47
  • 79
  • 25
  • 14.1

Kaynak

File System Access API'nin showSaveFileChooseer()

Tarayıcı Desteği

  • 86
  • 86
  • x
  • x

Kaynak

Daha fazla bilgi

Demografi

HTML

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <link
      rel="icon"
      href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>🖥️</text></svg>"
    />
    <title>How to record the user's screen</title>
  </head>
  <body>
    <h1>How to record the user's screen</h1>
    <button id="startShareScreenButton">Start sharing screen</button>
    <button id="stopShareScreenButton" disabled>Stop sharing screen</button>
    <button id="startRecordButton" disabled>Start recording</button>
    <button id="stopRecordButton" disabled>Stop recording</button>
    <video autoplay muted playsinline></video>
    <pre id="logs"></pre>
  </body>
</html>

CSS


        :root {
  color-scheme: dark light;
}
html {
  box-sizing: border-box;
}
*,
*:before,
*:after {
  box-sizing: inherit;
}
body {
  margin: 1rem;
  font-family: system-ui, sans-serif;
}
button {
  display: block;
  margin-bottom: 4px;
}
video {
  display: block;
  margin-top: 10px;
  max-width: 100%;
  background: black;
  max-height: 480px;
}
pre {
  color: red;
  white-space: pre-line;
}

JS


        const video = document.querySelector('video');
const startShareScreenButton = document.querySelector('#startShareScreenButton');
const stopShareScreenButton = document.querySelector('#stopShareScreenButton');
const startRecordButton = document.querySelector('#startRecordButton');
const stopRecordButton = document.querySelector('#stopRecordButton');

let stream;
let recorder;

startShareScreenButton.addEventListener("click", async () => {
  // Prompt the user to share their screen.
  stream = await navigator.mediaDevices.getDisplayMedia();
  recorder = new MediaRecorder(stream);
  // Preview the screen locally.
  video.srcObject = stream;

  startRecordButton.disabled = false;
  stopShareScreenButton.disabled = false;
  log("Your screen is being shared.");
});

stopShareScreenButton.addEventListener("click", () => {
  // Stop the stream.
  stream.getTracks().forEach(track => track.stop());
  video.srcObject = null;

  stopShareScreenButton.disabled = true;
  startRecordButton.disabled = true;
  stopRecordButton.disabled = true;
  log("Your screen is not shared anymore.");
});

startRecordButton.addEventListener("click", async () => {
  // For the sake of more legible code, this sample only uses the
  // `showSaveFilePicker()` method. In production, you need to
  // cater for browsers that don't support this method, as
  // outlined in https://web.dev/patterns/files/save-a-file/.

  // Prompt the user to choose where to save the recording file.
  const suggestedName = "screen-recording.webm";
  const handle = await window.showSaveFilePicker({ suggestedName });
  const writable = await handle.createWritable();

  // Start recording.
  recorder.start();
  recorder.addEventListener("dataavailable", async (event) => {
    // Write chunks to the file.
    await writable.write(event.data);
    if (recorder.state === "inactive") {
      // Close the file when the recording stops.
      await writable.close();
    }
  });

  stopRecordButton.disabled = false;
  log("Your screen is being recorded locally.");
});

stopRecordButton.addEventListener("click", () => {
  // Stop the recording.
  recorder.stop();

  stopRecordButton.disabled = true;
  log("Your screen has been successfully recorded locally.");
});