Hashbrown grows a lot sometimes making us waste a lot of memory. Shrink
some of these maps after CascadeData rebuild / stylesheet collection
invalidation.
Differential Revision: https://phabricator.services.mozilla.com/D134716
We hook the rule into cascade data, and so we can look it up by timeline
name. Now we only use StyleScrollDirection from @scroll-timeline rule.
`source` and `scroll-offsets` are skipped now and use the default values
instead because I'm pretty sure the syntax will be changed in Bug 1733260,
and `scroll-offsets` may be obsolete because the spec proposal intents to
make it be always 0% ~ 100%.
Also, add some reftests for the default `source` and `scroll-offsets`,
and different `orientation`s.
Besides, we disable at-scroll-timeline-start-end.html in Gecko because
we don't support start/end descriptors, and there are too many
intermittents in it.
Differential Revision: https://phabricator.services.mozilla.com/D126452
We add scroll-timeline rule into the stylesheet rule type, and add a new
perference to protect it: layout.css.scroll-linked-animations.enabled.
We will use this perference for animation-timeline property as well.
Differential Revision: https://phabricator.services.mozilla.com/D125765
Not hooked anywhere yet, so this doesn't change behavior, but adds the
basic data model etc.
Adding parsing support requires some changes to cssparser to allow the
same at rule to be block and statement-like at the same time, so better
done separately.
Differential Revision: https://phabricator.services.mozilla.com/D124079
In order to determine whether classes or ids are case insensitive we
need the document quirks mode. The sheet quirks mode almost always
matches, but may not match when sheets are added by privileged APIs.
Differential Revision: https://phabricator.services.mozilla.com/D95061
Also, for changes in CSS declarations, like changing
cssRules[i].style.color or something, we end up avoiding a lot of the
work we were doing.
This page still trips us in the sense that they add a stylesheet, then
call getBoundingClientRect(), then insert more rules in the stylesheet,
which causes us to rebuild a lot of the cascade data.
We could try to detect appends to the last stylesheet on the list or
something I guess, and avoid rebuilding the cascade data in some cases.
Depends on D85615
Differential Revision: https://phabricator.services.mozilla.com/D85616
This fixes performance issues when there's a massive number of rules and
a massive DOM.
Instead of going through all rules for all the DOM, we now look stuff in
hashmaps.
Differential Revision: https://phabricator.services.mozilla.com/D83506
Otherwise removal of stylesheets may get out of sync with other DOM changes, and
we may fail to invalidate the style of the affected elements.
Bug: 1432850
Reviewed-by: bz
MozReview-Commit-ID: DrMTgLzQcnk
Servo currently uses `heapsize`, but Stylo/Gecko use `malloc_size_of`.
`malloc_size_of` is better -- it handles various cases that `heapsize` does not
-- so this patch changes Servo to use `malloc_size_of`.
This patch makes the following changes to the `malloc_size_of` crate.
- Adds `MallocSizeOf` trait implementations for numerous types, some built-in
(e.g. `VecDeque`), some external and Servo-only (e.g. `string_cache`).
- Makes `enclosing_size_of_op` optional, because vanilla jemalloc doesn't
support that operation.
- For `HashSet`/`HashMap`, falls back to a computed estimate when
`enclosing_size_of_op` isn't available.
- Adds an extern "C" `malloc_size_of` function that does the actual heap
measurement; this is based on the same functions from the `heapsize` crate.
This patch makes the following changes elsewhere.
- Converts all the uses of `heapsize` to instead use `malloc_size_of`.
- Disables the "heapsize"/"heap_size" feature for the external crates that
provide it.
- Removes the `HeapSizeOf` implementation from `hashglobe`.
- Adds `ignore` annotations to a few `Rc`/`Arc`, because `malloc_size_of`
doesn't derive those types, unlike `heapsize`.
In addition to being able to invalidate just based on local name, this
also adds support for invalidating based on selectors with no ancestor
combinator in them (resulting in a RESTYLE_SELF for those elements that
match).
This is a patch that unifies a bit how Gecko and Stylo stylesheets work, in
order to be able to eventually move the stylesheets into the stylist, and be
able to incrementally update the invalidation map.
This patch renames TNode::parent_element to traversal_parent, since it returns
the parent from the perspective of traversal (which in Gecko uses the
flattened tree). It also renames TNode::children to traversal_children
for the saem reason.
We keep parent_element and children functions on TNode to use for selector
matching, which must be done on the real DOM tree structure.
