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When the checkedness changes, :checked selectors may yield different
results, so we have to update style.
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It was comparing against itself, oopsie!
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Simplify automatic cross sizing of items in flex-direction:column by
using the fit-content width directly.
There's obviously a lot more nuance to this, but for now this makes
flex items with both width:auto and height:auto actually get some height
in column flex layouts.
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I'm a little confused about intrinsic heights *really* work, and I'm
struggling to extract that information from the spec. In the meantime,
let's ensure that min-content is always smaller than (or equal to)
max-content so that other math works as expected.
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This works as 'inherit' for inherited properties and 'initial' for
everything else.
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Previously, each NodeState in a FormattingState was shared with the
parent FormattingState, but the HashMap of NodeState had to be copied
when making FormattingState copies.
This patch makes copying instant by keeping a pointer to the parent
FormattingState instead. When fetching immutable state via get(), we may
now return a reference to a NodeState owned by a parent FormattingState.
get_mutable() will copy any NodeState found in the ancestor chain before
making a brand new one.
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The flexbox specification barely even handwaves about automatically
sized items, but there's actually a lot of work to do in order for them
to get the correct size.
This patch is messy, but does make significant progress on supporting
flex items with indefinite width and/or height.
There's a fair amount of nested layout going on here, but do note that
we'll be hitting the intrinsic sizes cache whenever possible.
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FormattingContext can now calculate the intrinsic sizes (min-content and
max-content in both axes) for a given Layout::Box.
This is a rather expensive operation, as it necessitates performing two
throwaway layouts of the subtree rooted at the box. Fortunately, we can
cache the results of these calculations, as intrinsic sizes don't change
based on other context around the box. They are intrinsic after all. :^)
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This wasn't worth the headache of trying to make SVG boxes work together
with BFC right now. Let's just make it a block container once again, and
have its corresponding SVGPaintable inherit from PaintableWithLines.
We'll have to revisit this as SVG support improves.
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Although something has a definite size, we may still have to "resolve"
it, since FFC is quite liberal in what it considers to be definite.
Let's put that logic in a set of helper functions.
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This step will not be necessary when we implement indefinite size
calculations more correctly.
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1. Make this decision *after* we've inserted the layout node into the
layout tree. Otherwise, we can't reach its containing block!
2. Per css-sizing-3, consider auto-sized blocks whose sizes resolve
solely against other definite sizes as definite themselves.
In particular, (2) makes us consider width:auto block children of a
definite-size containing block as having definite size. This becomes
very important in flex layout.
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According to css-cascade-4, we should apply presentational hints from
content attributes *before* author styles.
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If there's some non-block-level box (like an SVG element of some kind)
between to blocks, just skip over the non-block for purposes of margin
collapsing. This is basically a hack, and something we'll need to
improve as part of our general SVG support.
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Instead of assuming that any indefinite cross size must be "auto", check
what is actually is, and resolve it accordingly.
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For single-line flex containers, center the only flex line along the
cross axis. Alignment of multi-line flex containers are left as a FIXME.
This patch also moves out the assignment of final metrics to the
FormattingState from align_all_flex_lines() to a separate function.
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This is now answered authoritatively by Layout::Box itself.
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- Avoid performing inside layout on definite-size flex items (since
their computed size can be used as-is.)
- Use FormattingState::clone() to generate a throwaway layout instead of
mutating the tree in-place.
- Update spec link & comments based on current CSSWG draft. The latest
version is quite a bit clearer on how this should work.
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This makes it easier for each step of the flex layout algorithm to
access this information.
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Instead of doing internal child layout incrementally as we go, save it
for the end of flex layout. The code will become simpler if we can focus
on simply computing the dimensions of each flex item while we're doing
the main FFC algorithm.
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Setting some initial width and height on the flex container is totally
unrelated to the "generate anonymous flex items" step.
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We don't need to perform inside layout here. The only information we
need in this step is whether an anonymous block container has nothing
but empty-or-whitespace text children.
This information is already accurate after the initial layout tree
construction. Performing a layout does not change the answer. It does
however have many other side effects, so let's defer those.
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As there is no need for a Prekernel on aarch64, the Prekernel code was
moved into Kernel itself. The functionality remains the same.
SERENITY_KERNEL_AND_INITRD in run.sh specifies a kernel and an inital
ramdisk to be used by the emulator. This is needed because aarch64
does not need a Prekernel and the other ones do.
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The struct only has a stub integer so that the size is the same for C
and C++. Something caught by CLion.
This commit was made with mrkct's help!
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As well as change the matching error message in deleteRow(), which
likely caused this mistake in the first place.
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https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules
"The compiler is more likely to get the default semantics right and
you cannot implement these functions better than the compiler."
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This implements at least some of the specification. inter-character is
not yet handled. However as our current algorithm only considers
whitespace as word breaks, inter-word could technically be considered to
be handled. :^)
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This commit adds the text-justify property as defined in:
https://drafts.csswg.org/css-text/#propdef-text-justify
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All the justification-related code is now in
InlineFormattingContext::apply_justification_to_fragments and is
performed after all the line boxes have been added.
Text justification now only happens on the last line if the excess space
including whitespace is below a certain threshold. 10% seemed reasonable
since it prevents the "over-justification" of text. Note that fragments
in line boxes before the last one are always justified.
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When doing viewbox transforms, elliptical always had large arc and
sweep flag set to false. Preserve these flags so they can be set
correctly when applying viewbox transformations.
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This keeps us from stopping early and not rendering the argument at all.
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I finished off the Miscellaneous Technical section,
that is U+2300 - U+23FF, itemized below. Now we have
a bunch of APL glyphs :^)
2205
2300 - 2313
2319
231C - 2325
2329 - 232A
232C - 237F
238D - 2395
239B - 23CC
23D0 - 23E8
23AE
23FF
2B21
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The absolute rect of a paintable is somewhat expensive to compute. This
is because all coordinates are relative to the nearest containing block,
so we have to traverse the containing block chain and apply each offset
to get the final rect.
Paintables will never move between containing blocks, nor will their
absolute rect change. If anything changes, we'll simpl make a new
paintable and replace the old one.
Take advantage of this by caching the containing block and absolute rect
after first access.
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On the code path where we are setting a TypedArray from another
TypedArray of the same type, we forgo the spec text and simply do a
memmove between the two ArrayBuffers. However, we forgot to apply
source's byte offset on this code path.
This meant if we tried setting a TypedArray from a TypedArray we got
from .subarray(), we would still copy from the start of the subarray's
ArrayBuffer.
This is because .subarray() returns a new TypedArray with the same
ArrayBuffer but the new TypedArray has a smaller length and a byte
offset that the rest of the codebase is responsible for applying.
This affected pako when it was decompressing a zlib stream that has
multiple zlib chunks in it. To read from the second chunk, it would
set the zlib window TypedArray from the .subarray() of the chunk offset
in the stream's TypedArray. This effectively made the decompressed data
from the second chunk a mis-mash of old data that looked completely
scrambled. It would also cause all future decompression using the same
pako Inflate instance to also appear scrambled.
As a pako comment aptly puts it:
> Call updatewindow() to create and/or update the window state.
> Note: a memory error from inflate() is non-recoverable.
This allows us to properly decompress the large compressed payloads
that Discord Gateway sends down to the Discord client. For example,
for an account that's only in the Serenity Discord, one of the payloads
is a 20 KB zlib compressed blob that has two chunks in it.
Surprisingly, this is not covered by test262! I imagine this would have
been caught earlier if there was such a test :^)
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Only 'sha256' or 'sig' are allowed in the 'auth_type' field in order for
the linter to pass. Reflect that into the README and give a description
on what to do to create a hash.
Also expand the examples to include a SHA256 hash.
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Since the glyphs are being worked on, a APL interpreter seems like a
good way to use them.
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Previously this queried the root layout-node's font, which was both
wrong and could crash if the layout wasn't ready yet. Now, it's just
wrong. But at least all the font-related wrongness is grouped together
in StyleComputer. :^)
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In testing a particular website (https://www.icpms.com), WebContent
was crashing with infinite recursion in draw_circle_arc_intersecting.
Presumably, radius must be > 0 to paint something, so this trivial
patch simply returns if radius <= 0. The website in question no longer
crashes WebContent.
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https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules
"The compiler is more likely to get the default semantics right and
you cannot implement these functions better than the compiler."
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https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules
"The compiler is more likely to get the default semantics right and
you cannot implement these functions better than the compiler."
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https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules
"The compiler is more likely to get the default semantics right and
you cannot implement these functions better than the compiler."
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