1769678 - navigator.clipboard.read is not working if dom.events.testing.asyncClipboard is false

Status: RESOLVED DUPLICATE of bug 1773477

(Core :: DOM: Copy & Paste and Drag & Drop, enhancement)

Description

[vissu_nbkr]

Attachment: May-17-2022 10-11-44.gif

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1 Safari/605.1.15

Steps to reproduce:

I tried to read clipboard by using the navigator.clipboard.read API by setting the dom.events.asyncClipboard.clipboardItem and dom.events.asyncClipboard.read to true from about:config in firefox.

Actual results:

An error is thrown with undefined error message.

If we set the config dom.events.testing.asyncClipboard also to true it is working.

Expected results:

As the name suggests I thought no need to set dom.events.testing.asyncClipboard to true, but clipboard API is not able read without setting this config.

Comment 1

[Edgar Chen [:edgar] (OOO)]

I think it is because we still use the permission model for clipboard.read() which only works for addon, https://searchfox.org/mozilla-central/rev/24c1cdc33ccce692612276cd0d3e9a44f6c22fd3/dom/events/Clipboard.cpp#59-61. We are working on a new model that show a paste button instead in bug 1744524. clipboard.read() will be applied to the same model.