Slow paste with useSystemClipboard

[chris-b1]

What did you do?

Copying and pasting a line a of text - yy then p. Any file type.

When not using the system clipboard ("vim.useSystemClipboard": false) - the paste is nearly instant.

When "vim.useSystemClipboard":true the paste is significantly slower - on the order of 1 second.

From looking through past issues, it looks like https://github.com/xavi-/node-copy-paste is used to access the system clipboard, so possibly is an upstream issue?

Thanks.

Technical details:

• VSCode Version: 1.9.1
• VsCodeVim Version: 0.5.3
• OS: Windows 7 64 bit

[xconverge]

Another user reported issues and was using Win7 as well I believe...hmm

Can you try the low level command and see what the speed is like?

for example in CMD prompt:

ipconfig /all | clip

https://www.labnol.org/software/copy-command-output-to-clipboard/2506/

[chris-b1]

Thanks - that command is fast, but it looks like the issue is with the pasting code upstream.

var ncp = require("copy-paste");

ncp.copy("Some text to the clipboard", function () { console.log("done") })  // fast

> ncp.paste()  // slow
'Some text to the clipboard'

I haven't looked deeply but they are using some vbscript to grab and parse data from the clipboard which is probably the slow link.

https://github.com/xavi-/node-copy-paste/blob/9897be123ca03e4946325270dcc80a5736a36cc7/platform/fallbacks/paste.vbs

[jpoon]

Great detective work @chris-b1.

[jpoon]

@xconverge's work to move to a different library should help with this: #1487