Message service should show a little more

[alefragnani]

When you use vscode.window.showErrorMessage (Information and Warning too), the message that is displayed is limited to one line with a certain length.

It would be good to have a way to expand the message (maybe like the Read more available in Intellisense), showing the entire content.

Thanks in advance

[dbaeumer]

@jrieken +1. I have a use case for this as well.

[jrieken]

The API should be fit for it but it's a limitation of our underlying message service.

[bpasero]

@stevencl @bgashler1 this should be one input to our notifications discussion.

[joelbarker2011]

At the very least, there should be some documentation stating that the portion of the message string after the first new line will be silently ignored!

I would definitely classify this as a bug, not a feature request. (It is either a bug in functionality, where the message is not being fully displayed, or a bug in the documentation, if this is intentionally unsupported behavior.)

[bpasero]

Hovering should always reveal the full message so there is a workaround.

[joelbarker2011]

Thanks, @bpasero.

I note that hovering collapses all white space (newlines/tabs) into single spaces (it renders as a string, not HTML, so there seems to be no way to render lines of output in a readable manner).

I also note that the hovering behavior, while better than nothing, is both non-obvious and undocumented.

[bgashler1]

Related to #1135

[s-h-a-d-o-w]

Hovering should always reveal the full message so there is a workaround.

Have you ever tried writing down an error message that is displayed in a tooltip?
Doesn't work all that well. ;)

[bpasero]

This landed via #43770 and can be tried out in our preview release: https://code.visualstudio.com/insiders/