Cara berbagi file

Palances Liao
Palances Liao

Untuk membagikan file, panggil navigator.share(). Perhatikan bahwa Anda harus selalu memeriksa apakah file dapat dibagikan dengan navigator.canShare() dan memastikan situs Anda menggunakan HTTPS sebelum memanggil metode share().

// Assume `blob` is a PNG image file.
const data = {
  files
: [
   
new File([blob], 'image.png', {
      type
: blob.type,
   
}),
 
],
  title
: 'My title',
  text
: 'My text',
};
if (navigator.canShare(data)) {
  await navigator
.share(data);
}

Dukungan Browser

  • 89
  • 93
  • 12,1

Sumber

Cara klasik

Hal terbaik berikutnya yang dapat ditawarkan kepada pengguna jika Web Share API tidak didukung adalah kembali mengizinkan pengguna mendownload file, sehingga mereka dapat membagikannya secara manual, misalnya, melalui email atau melalui messenger atau aplikasi jaringan sosial online.

Dukungan Browser

  • 15
  • 13
  • 20
  • 10.1

Sumber

{i>Progressive enhancement <i}

Metode di bawah menggunakan Web Share API jika browser mendukungnya dan kapan data dapat dibagikan berdasarkan jenis file yang didukung. Atau, melakukan fallback untuk mendownload filenya.

const button = document.querySelector('button');
const img =  document.querySelector('img');

// Feature detection
const webShareSupported = 'canShare' in navigator;
// Update the button action text.
button
.textContent = webShareSupported ? 'Share' : 'Download';

const shareOrDownload = async (blob, fileName, title, text) => {
 
// Using the Web Share API.
 
if (webShareSupported) {
   
const data = {
      files
: [
       
new File([blob], fileName, {
          type
: blob.type,
       
}),
     
],
      title
,
      text
,
   
};
   
if (navigator.canShare(data)) {
     
try {
        await navigator
.share(data);
     
} catch (err) {
       
if (err.name !== 'AbortError') {
          console
.error(err.name, err.message);
       
}
     
} finally {
       
return;
     
}
   
}
 
}
 
// Fallback implementation.
 
const a = document.createElement('a');
  a
.download = fileName;
  a
.style.display = 'none';
  a
.href = URL.createObjectURL(blob);
  a
.addEventListener('click', () => {
    setTimeout
(() => {
      URL
.revokeObjectURL(a.href);
      a
.remove();
   
}, 1000)
 
});
  document
.body.append(a);
  a
.click();
};

button
.addEventListener('click', async () => {
 
const blob = await fetch(img.src).then(res => res.blob());
  await shareOrDownload
(blob, 'cat.png', 'Cat in the snow', 'Getting cold feet…');
});

Bacaan lebih lanjut

Demo

<!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></title>
   
<link rel="stylesheet" href="style.css" />
   
<!-- TODO: Devsite - Removed inline handlers -->
   
<!-- <script src="script.js" type="module"></script> -->
 
</head>
 
<body>
   
<h1>Share a file</h1>
   
<img
     
width="200"
     
height="200"
     
alt="A cat walking in the snow."
     
src="cat.png"
   
/>
   
<button type=button></button>
 
</body>
</html>

       
:root {
 
color-scheme: dark light;
}

html
{
 
box-sizing: border-box;
}

*,
*:before,
*:after {
 
box-sizing: inherit;
}

body
{
 
margin: 1rem;
 
font-family: system-ui, sans-serif;
}

img
,
video
{
 
height: auto;
 
max-width: 100%;
 
display: block;
}

button
{
 
margin: 1rem;
}
       

       
const button = document.querySelector('button');
const img =  document.querySelector('img');

const webShareSupported = 'canShare' in navigator;
button
.textContent = webShareSupported ? 'Share' : 'Download';

const shareOrDownload = async (blob, fileName, title, text) => {
 
if (webShareSupported) {
   
const data = {
      files
: [
       
new File([blob], fileName, {
          type
: blob.type,
       
}),
     
],
      title
,
      text
,
   
};
   
if (navigator.canShare(data)) {
     
try {
        await navigator
.share(data);
     
} catch (err) {
       
if (err.name !== 'AbortError') {
          console
.error(err.name, err.message);
       
}
     
} finally {
       
return;
     
}
   
}
 
}
 
// Fallback
 
const a = document.createElement('a');
  a
.download = fileName;
  a
.style.display = 'none';
  a
.href = URL.createObjectURL(blob);
  a
.addEventListener('click', () => {
    setTimeout
(() => {
      URL
.revokeObjectURL(a.href);
      a
.remove();
   
}, 1000)
 
});
  document
.body.append(a);
  a
.click();
};

button
.addEventListener('click', async () => {
 
const blob = await fetch(img.src).then(res => res.blob());
  await shareOrDownload
(blob, 'cat.png', 'Cat in the snow', 'Getting cold feet…');
});