This simplifies a bit the code, and guarantees that all calc()s have percentages
and lengths.
I also wanted to remove unclamped_length() / specified_percentage() (for the
same reason as the above patch), but they're needed for animations for now. When
I implement min() / max() for <length-percentage> they'll be fixed.
Differential Revision: https://phabricator.services.mozilla.com/D60194
So that it takes one pointer instead of two, and doesn't make nsStylePosition's
size blow up.
This is not as ugly as I was fearing, thankfully, though it requires a bit of
boilerplate. I think it's acceptable.
Differential Revision: https://phabricator.services.mozilla.com/D58702
I'm (sadly) about to make it a bit more complicated to pack it better. So we
may as well do this so it is easier to reason about navigate.
I also reordered things a bit, and removed some From<> implementations and
such.
Differential Revision: https://phabricator.services.mozilla.com/D58701
This is needed to support min() / max() / clamp(), etc, as those need to be a
tree of values and thus need heap storage.
This unfortunately grows LengthPercentage to be two pointers, which is bad as
it blows up the size of nsStylePosition enough to trigger the size assertions.
This patch comments out the assertion for now, the follow-up patches will
uncomment them.
Differential Revision: https://phabricator.services.mozilla.com/D58700
This cleans up and also allows us to keep the distinction between content: none
and content: normal, which allows us to fix the computed style we return from
getComputedStyle().
Do this last bit from the resolved value instead of StyleAdjuster, because
otherwise we need to tweak every initial struct for ::before / ::after.
Differential Revision: https://phabricator.services.mozilla.com/D58276
Font code is the only thing that was using Au in the style system without
interfacing with Gecko, and there was no real reason for it to do so.
This slightly simplifies the code.
Differential Revision: https://phabricator.services.mozilla.com/D57248
We need to pass these two types into the compositor, so we need a better
way to serialize these rust types. We use serde and bincode to
serialize/deserialize them, and use ByteBuf to pass the &[u8] data
through IPC. We define StyleVecU8 for FFI usage only.
Differential Revision: https://phabricator.services.mozilla.com/D50688
Mostly renaming for clarity, as the gradient parsing code is a bit hairy.
This also changes -webkit- gradients, which is, I think, the right thing to do
(otherwise I need to give up on the type system and sprinkle parse_non_negatives
around, which would be unfortunate).
I filed https://bugs.chromium.org/p/chromium/issues/detail?id=1008112 on
Chromium still accepting negative radii for those, so will wait to submit the
patch for review until they reply there with their intentions.
Differential Revision: https://phabricator.services.mozilla.com/D47141
1. Add `generics::motion::OffsetPath`, and use specified `Angle` and
computed `Angle` to define specified `OffsetPath` and computed `OffsetPath`.
2. Add `ray` function into `OffsetPath`.
We also tweak the degree from 150deg to 135deg in wpt (e.g.
offset-path-ray-001.html and others) to avoid floating point precision issues.
For example:
```
// offset-path: ray(150deg ...);
// offset-distance: 20px;
matrix:
{
{0.500000 0.866025 0.000000 0.000000},
{-0.866025 0.500000 0.000000 0.000000},
{0.000000 0.000000 1.000000 0.000000},
{10.000000 17.320509 0.000000 1.000000}
}
// rotate(60deg) translate(20px)
matrix:
{
{0.500000 0.866025 0.000000 0.000000},
{-0.866025 0.500000 0.000000 0.000000},
{0.000000 0.000000 1.000000 0.000000},
{10.000000 17.320507 0.000000 1.000000}
}
```
Their translate parts, 17.320509 vs 17.320507, are almost the same (only
tiny difference), which may cause the reftest failed.
Differential Revision: https://phabricator.services.mozilla.com/D42721
These two bugs (bug 1572738 and bug 1572451) are stylo regressions.
When font-family changes, we try to recompute the font-size with a length /
percentage combinations in case the generic family changes, so the user
preferences are kept.
When calc() is involved, we clamp to non-negative too early, via
NonNegativeLength::scale_by.
I think we should generally dump this "try to track font-size across calc()"
thingie, as as various comments note it is not quite perfect, and it's not clear
how it should work in presence of min()/max().
This patch fixes the issue and simplifies code a bit, I may consider removing
this altogether in a follow-up.
Differential Revision: https://phabricator.services.mozilla.com/D41776
I'm _really_ sorry for the size of the patch. I tried to do this in two steps
but it was a lot of work and pretty ugly.
This patch makes us use cbindgen for grid-template-{rows,columns}, in order to:
* Make us preserve repeat() at computed-value time. This is per spec since
interpolation needs to know about repeat(). Except for subgrid, which did the
repeat expansion at parse-time and was a bit more annoying (plus it doesn't
really animate yet so we don't need it to comply with the spec).
* Tweaks the WPT tests for interpolation to adopt the resolution at:
https://github.com/w3c/csswg-drafts/issues/3503.
Trade-off here, as this patch stands, is that this change makes us use less
long-living memory, since we expand repeat() during layout, but at the cost of a
bit of CPU time during layout (conditional on the property applying though,
which wasn't the case before). It should be very easy to store a cached version
of the template, should this be too hot (I expect it isn't), or to change the
representation in other ways to optimize grid layout code if it's worth it.
Another trade-off: I've used SmallPointerArray to handle line-name merging,
pointing to the individual arrays in the style data, rather than actually
heap-allocating the merged lists. This would also be pretty easy to change
should we measure and see that it's not worth it.
This patch also opens the gate to potentially improving memory usage in some
other ways, by reference-counting line-name lists for example, though I don't
have data that suggests it is worth it.
In general, this patch makes much easier to tweak the internal representation of
the grid style data structures. Overall, I think it's a win, the amount of magic
going on in that mako code was a bit huge; it took a bit to wrap my head around
it.
This patch comments out the style struct size assertions. They will be
uncommented in a follow-up patch which contains some improvements for this type,
which are worth getting reviewed separately.
Also, this patch doesn't remove as much code as I would've hoped for because of
I tried not to change most of the dom/grid code for inspector, but I think a
fair bit of the nsGridContainerFrame.cpp code that collects information for it
can be simplified / de-copy-pasted to some extent. But that was a pre-existing
problem and this patch is already quite massive.
Differential Revision: https://phabricator.services.mozilla.com/D36598
