[Webkit-unassigned] [Bug 222262] Javascript Clipboard API write() does not work after await

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=222262

Thomas Steiner <tomac at google.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tomac at google.com

--- Comment #5 from Thomas Steiner <tomac at google.com> ---
The different implementations unfortunately at the moment force developers to write code like this:

```js
copyButton.addEventListener('click', async () => {
  try {
    // Safari treats user activation differently:
    // https://bugs.webkit.org/show_bug.cgi?id=222262.
    navigator.clipboard.write([
      new ClipboardItem({
        'text/plain': new Promise(async (resolve) => {
          const svg = svgOutput.innerHTML;
          resolve(new Blob([svg], { type: 'text/plain' }));
        }),
      }),
    ]);
  } catch {
    // Chromium
    const svg = svgOutput.innerHTML;    
    const blob = new Blob([svg], { type: 'text/plain' });
    navigator.clipboard.write([
      new ClipboardItem({
        [blob.type]: blob,
      }),
    ]);
  }
});
```

Chromium is working on adding support for delayed generation of clipboard items (see https://crbug.com/1014310).

At the same time it would be great if WebKit didn't expire the user activation.

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