For example, a cell with `rowspan="2"` can cross a collapsed border that
was set on the rows. Now the slice of this row border that is crossed
by the cell will be hidden.
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
This used to be a struct that had a list of `CollapsedBorder`s, and the
maximum border width among that list.
However, this cached maximum border width was only used when resolving
the borders of the table. Therefore, for all grid lines except the first
and last ones per axis, this data was useless.
Also, in order to address #35123 I plan to retroactively zero out some
collapsed borders, which could invalidate this cache.
So this patch just removes the field and turns `CollapsedBorderLine`
into an alias of `Vec<CollapsedBorder>`.
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
Even though when painting the collapsed borders we were using the right
size, when sizing the table we were treating cells as having a border
of half the maximum border size along the entire grid line.
Now we only take the maximum among the borders adjacent to the cell.
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
* Fix building libservo with `cargo build -p libservo`
Signed-off-by: Delan Azabani <dazabani@igalia.com>
* Test the libservo build in CI
Signed-off-by: Delan Azabani <dazabani@igalia.com>
* Work around build issue on macOS (#34517)
Signed-off-by: Delan Azabani <dazabani@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
---------
Signed-off-by: Delan Azabani <dazabani@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
We were just checking the computed `display` style, but a few HTML
elements can ignore some `display` values and generate a different
kind of box.
This uses the right check, though for now there is no difference in
behavior since we don't have special HTML layouts.
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
The BlobState enum was used to track whether a GlobalScope
was managing any blobs (effectively like an `Option<HashMap>`,
being `None` if no blobs are being managed)
This is a pointless abstraction, as a HashMap is already allowed
to be empty. Removing `BlobState` and just using a
HashMap directly reduces noise and panic! invocations when
working with the blob store.
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
For a table wrapper in collapsed-borders mode we were just halving the
border widths from the computed style. However, it needs to actually
receive half of the resulting collapsed border, which can be bigger.
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
https://www.w3.org/TR/CSS21/tables.html#border-conflict-resolution
> If border styles differ only in color, then a style set on a cell wins
> over one on a row, which wins over a row group, column, column group
> and, lastly, table.
We were actually using the opposite order.
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
We previously tried to implement the [table specification algorithm] for
distributing the inline size of cells with `rowspan` > 1. This algorithm
isn't great though, so this change starts switching Servo to using an
algorithm like the one used in LayoutNG from blink. This leads to
improvements in test results.
Limitations:
- Currently, non-fixed layout mode is handled, but a followup change will
very likely addressed fixed mode tables.
- Column merging is not handled at all.
Fixes#6578.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Oriol Brufau <obrufau@igalia.com>
We were previously splitting collapsed borders into two halves, and then
paint each one as part of the corresponding cell. This looked wrong when
the border style wasn't solid, or when a cell spanned multiple tracks
and the border wasn't the same for all of them.
Now the borders of a table wrapper, table grid or table cell aren't
painted in collapsed borders mode. Instead, the resulting collapsed
borders are painted on their own.
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
`clientWidth` shouldn't include the borders of a box. The problem was
that we pretend that table wrapper boxes have the border specified on
the table element, even though this border actually applies to the
table grid box instead of the table wrapper box.
Therefore, `clientWidth` was wrong when it subtracted the borders.
This patch fixes it.
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
If an absolutely position element which is replaced has `justify-self`
or `align-self` set to `stretch`, and no inset is `auto` on that axis,
then an automatic size should behave as `stretch`, not as `fit-content`.
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
This workaround was introduced to handle an issue with the WPT server,
but it seems that it is no longer needed. This change removes the
prefernce and the workarond code.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
* Set descendant's attribute's owner document in Node::adopt
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Add test that adopting an element into a new doc updates the attribute' owner docs
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
---------
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Implement slot-related algorithms
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Hook up slot elements to DOM creation logic
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Set a slot assignment mode for servo-internal shadow roots
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Assign slots when a slottable's slot attribute changes
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Properly compute slot name
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* ./mach test-tidy
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Update <slot> name when name attribute changes
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Implement fast path for Node::assign_slottables_for_a_tree
assign_slottables_for_a_tree traverses all descendants of the node
and is potentially very expensive. If the node is not a shadow root
then assigning slottables to it won't have any effect, so we
take a fast path out.
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Move slottable data into ElementRareData
This shrinks all element descendants back to their
original size.
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Address review comments
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Update WPT expectations
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
---------
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
This will be useful for distributing colspan constraints to their
columns
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Oriol Brufau <obrufau@igalia.com>
- Move options configuring antialiasing and WebRender shader precache to
the `Preferences` to group them with other related WebRender and DOM
settings.
- Remove the option to disable antialiasing for canvases. This was
unused.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
* crown: Support Rc<T::Promise> and callback objects parameterized over a trait..
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* crown: Verify that attributes match between trait associated types and impls.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* crown: Check type aliases as part of associated type checks.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* crown: Add periods to all diagnostic messages.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* Tidy.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* Fix compile-fail test expectations.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
---------
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
Some layouts like table need some style overrides. We were handling this
in `ComputedValuesExt`, but it was messy, unreliable and too limited.
For example, we were assuming that a style with `display: table` would
belong to a table wrapper box or table grid box. However, certain HTML
elements can ignore their `display` value and generate a different kind
of box. I think we aren't doing that yet, but we will need this.
Also, resolving the used border of a table needs layout information,
which we don't have in `ComputedValuesExt`. This patch will allow to
improve border collapsing in a follow-up.
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
We were previously using the same style and color for two collapsed
borders sharing a coordinate. Now such a line of collapsed borders can
be piecewise and have different colors and styles.
This still doesn't add support for piecewise border widths.
Also, since we are currently painting borders as part of the table and
cell boxes, and a box side can't have a piecewise border, this patch
only really works when:
- There aren't spanning cells
- The table has no assigned border (only the cells and tracks have it)
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
* Fix build failure with tracing feature
Skip tracing preferences for now to avoid:
```
error[E0277]: `Preferences` doesn't implement `std::fmt::Debug`
```
Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>
* Fix warning about unused tracing span.
The tracing span is "used" when it is dropped,
so in that sense it is a false positive.
Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>
---------
Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>
There were two kinds of layout tracing controlled by the same debugging
option:
- modern layout: Functionality that dumped a JSON serialization of the
layout tree before and after layout.
- legacy layout: A scope based tracing that reported the process of
layout in a structured way.
I don't think anyone working on layout is using either of these two
features. For modern layout requiring data structure to implement
`serde` serialization is incredibly inconvenient and also generates a
lot of extra code.
We also have a more modern tracing functionality based on perfetto that
we have started to use for layout and IMO it's actually being used and
more robust.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Synchronous web font loading is not specification compliant and was
added in #8341 to work around issues that do not exist any longer. This
change removes the functionality and ensures that WPT tests are run with
the spec compliant loader.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
There are some preferences and options that are only used by legacy
layout or not used at all. This PR removes them.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
