This patch passes the options argument to process_blob_parts() and makes
use of the "convert line endings to native" algorithm when the endings
member of options (BlobPropertyBag) is set to "native".
Which is to say, a T where `is_calculated()` is false.
As is becoming a repeating theme with CSS types, we have two states for
a FooPercentage that is a `calc()` expression: Either the FooPercentage
holds the CalculatedStyleValue directly, or it holds a Foo which itself
holds the CalculatedStyleValue. The first case was already handled to
return Foo, and with this patch, the second is too. :^)
Fixes#14697
Percentages inside `calc()` only got converted to the concrete type
(eg, Length) when added or subtracted with one. So if the `calc
()` doesn't contain any of that type, it would resolve to a
Percentage.
Now, we catch that returned Percentage and convert it to the proper
type. This fixes cases like `width: calc(100% / 2);`.
Blob::bytes() returns the ReadonlyBytes representation of our internal
ByteBuffer.
This change requires us to ByteBuffer::copy() Blob's ReadonlyBytes to a
ByteBuffer in XHR::send() and corresponding error handling of the copy
operation.
This removes the need for Blob to declare XMLHttpRequest as a friend
class.
Previously we were checking if values were "auto" after resolving the
"auto"-ness out of them, which didn't work. There's still a bunch of
work to do on this algorithm, but now we can at least resolve some basic
automatic height scenarios.
Percentage sizes of flex items are relative to the flex container, but
even when the flex container is automatically sized, we still have to
support them.
To make this work, we first do a pass where percentage sizes are ignored
(treated as "auto", basically) in order to get a "reference" value.
Then we do a second pass where percentages can be resolved against this
reference value.
We were neglecting to clamp flex items when calculating the intrinsic
main size of the flex container. This was covered by a FIXME, which we
can now remove. :^)
We had an older incomplete implementation of flex container max-content
sizing that we used for unconstrained main size determination.
This patch replaces the old implementation with a call to the new
max-content sizing code.
Note that this isn't a complete implementation of flex container sizing
still, but at least we've deduplicated some code.
The CSS-FLEXBOX-1 spec gives us two situations in which flex item cross
sizes should be considered definite. Both of them happen *during* flex
layout, which is super finicky but it is what it is.
When calculating intrinsic sizes, we don't need to recurse into *every*
box and layout its insides. IIUC, we can skip any unconstrained box with
definite sizes in both axes. So this patch does exactly that.
