Conflict with base-R's file.choose()

[torden81]

There seems to be a conflict with base-R's file.choose() when loading 'ragg' on Windows 10.

library(ragg)
file.choose()

leads to a "Select files" dialog where all fonts have disappeared.
The issue also exists for choose.files() and choose.dir() from the utils-package.

Interestingly, if executing from a fresh session:

file.choose()
library(ragg)
file.choose()

the fonts are shown correctly, indicating that calling file.choose() caches the fonts before the conflict with 'ragg'.

Any help with this issue would be appreciated.

[thomasp85]

ragg does not interface in any way with base/utils file API so I'm a bit at a loss here...

Can the issue be reproduced with loading either systemfonts or textshaping?

[torden81]

It is indeed caused by 'textshaping'. If I substitute 'ragg' for 'textshaping' in my description above, the exact same issue is triggered.

[thomasp85]

Thanks for confirming - does loading systemfonts trigger it as well?

[torden81]

No, systemfonts is fine.

[thomasp85]

Thanks. Can you provide a screenshot of the behaviour as I don't fully understand the description in the first post🙂

[torden81]

Here we go. :)
All letters within the file dialog have disappeared.

[thomasp85]

Thanks - and this only happens with the file selector summoned by file.choose(), not anything outside of R in the general windows UI?

[torden81]

It seems that it is only happening in the R session that summons the file selector by file.choose() and has 'textshaping' loaded.

I tested simultaneously with another R session that didn't have 'textshaping' loaded. There all letters were shown. Similarly I had no issues with the file selector in Edge, Firefox and Acrobat Reader.

Let me know if I can test something else.

[thomasp85]

This issue seems to be connected with #35

[jeroen]

Can you try installing the latest dev versions and test if the problem still exists?

install.packages("textshaping", repos = "https://r-lib.r-universe.dev")

[torden81]

Can you try installing the latest dev versions and test if the problem still exists?

install.packages("textshaping", repos = "https://r-lib.r-universe.dev")

This installed the dev version '0.3.6.9000' and the problem persists.

[torden81]

It seems that the issue is also connected to rstudio/rstudio#13078