The css function is in htmltools 0.2.11, which isn't on CRAN
yet. Due to a perfect storm of release scheduling we need to
get fillPage onto shiny master before we have a chance to
put htmltools on CRAN.
I decided against the name flexRow/flexCol as the "flex" prefix
is too general for these implementations, which are mostly just
useful for filling the space with the children. Flex box has a
lot more features than that, such as centering, wrapping,
justifying, etc., but I don't currently know how to design an
API that presents the full power of flex box without also
presenting the full complexity of it as well.
This commit also includes some tweaks to the impl of flexfill
to fix the behavior of children with 100% size along the main
axis, and also introduces support for NA flex values, which
sizes the flex item according to its contents.
Validation errors were behaving too much like real errors: they were
being printed with stack traces, and passed to the options(shiny.error)
function. Also, if a reactive() cached a validation error, on future
calls the error would be re-raised (which is correct) without the
custom class names attached (which is not).
No known errors will occur when printing the stack trace, but since
this is fairly complicated code executing when an error has already
happened, better to be on the defensive.
It is dangerous to set this on a per-process basis. If we even
still want the ability to have observer errors not kill the
session (debatable) we should do so by having an option on the
session object that is set when the shiny server function runs.
Not only does this remove support for the option, but now we
will refuse to connect and will abort the session if the option
is set to a non-NULL value. This is to prevent apps from moving
forward with the assumption that their option will work, when
it really won't. (I doubt anyone is using it anyway, it's so
obscure...)
- More selective removal of frames at end of call stack
- Add withLogErrors, printError, stripStackTrace convenience funcs
- Properly capture/log errors for various levels of unhandled errors
- Unhide stacks for flush/flushed/sessionended callbacks
