Support for clipboard?

[csterritt]

Hi -- I have the following code in my JS, which works fine for copying text to the clipboard when I'm running in development, but throws an error when I try it in the production app.

    copyUrlToClipboard(url) {
      DebugOutput(`About to write to the clipboard: navigator is: '${navigator}'`)
      try {
        navigator.clipboard.writeText(url).catch((err) => {
          const msg = `Unable to copy to the clipboard: ${err}`
          DebugOutput(`Error: ${msg}`)
          LogPrint(msg)
          console.log(msg)
        })
      } catch (err) {
        const msg = `Unable to copy to the clipboard (in try/catch): ${err}`
        DebugOutput(`Error: ${msg}`)
        LogPrint(msg)
        console.log(msg)
      }
      DebugOutput(`Finished write to the clipboard`)
    },

I get a complaint that navigator.clipboard is undefined at runtime, but again, only in the production app.

Any clues? Thanks!

[leaanthony]

When you say in Dev mode, do you mean the desktop app or browser?

[csterritt]

I wonder if there's a way to have the Go side make a system call to copy the object/text?

I say this because the MDN documentation says, "Secure context: This feature is available only in secure contexts (HTTPS)". Which just seems to add to the mystery -- does WebView somehow set up a certificate on the server side to make its browser think it's secure? Then why doesn't it do it in production?

[leaanthony]

What's more, webview runs in exactly the same way in prod builds as it does in Dev....

[ianmjones]

I do clipboard read/write from Go rather than JS side of things using the following package:

https://pkg.go.dev/golang.design/x/clipboard

[csterritt]

@ianmjones THANK YOU! That works perfectly, in both dev and prod.

Maybe this should part of the Wails Go API?

[leaanthony]

Maybe.... At the very least it would be good to add a guide in the docs website for this. It would be an amazing way to contribute to the project @csterritt 😀