CSS shouldn't probably check if a MIME type in the 'data:' URL is
correct or not. Every URL gets sent to a ResourceLoader so a client can
just validate if got file with correct media type.
This also makes loading 'data:' URLs in @import work now, as we didn't
have AllowedDataUrlType for stylesheets.
By not clearing the buffer, we were leaking the path part of a URL into
the query for URLs without an authority component (no '//host').
This could be seen most noticeably in mailto: URLs with header fields
set, as the query part of `mailto:user@example.com?subject=test` was
parsed to `user@example.comsubject=test`.
data: URLs didn't have this problem, because we have a special case for
parsing them.
When toggling `display: none` on an element, it can go from having a
layout subtree to not having one. In the `none` case, we were previously
leaving stale layout nodes hanging off DOM nodes in the subtree.
These layout nodes could be queried for outdated information and
probably other things that we shouldn't allow.
Fix this by having TreeBuilder prune any old layout nodes hanging off
nodes in a subtree after its subtree root doesn't produce a layout node.
CSSStyleSheet now caches the CSSNamespaceRule for the default namespace,
which is the only one we currently care about. This saves us from
iterating over its list of rules every time we want to know what that
default namespace is.
The spec dictates that `@namespace` rules are only valid near the start
of a stylesheet, so we also take advantage of that to quit searching
for namespaces as soon as we see a non-import rule.
Also renamed `namespace_filter()` to `default_namespace()` since that's
what it actually returns.
This makes github.com/serenityos/serenity snappy again. :^)
The spawn_helper_process method was introduced together with
get_paths_for_helper_process but was only ever used briefly to spawn
WebContent. Other helper processes (SqlServer, headless_browser etc)
are either execed or spawned with their own helpers & custom arguments.
The first implementation of this property was just plain wrong. Looks
like this property isn't used a lot as I found the issue by reviewing
the code and not because of a specific image.
The test image is a 32x32 mosaic of alternating black and yellow pixels,
it was generated using this code:
Bitdepth 8
RCT 1
Width 32
Height 32
if W-WW-NW+NWW > -300
- Set -1000
- Set 900
The Qt relationship was removed in de31a8a4, so let's acknowledge that
and make it clearer to potential non-Qt ports that this file is usable
by them :^).
This is defined in the spec, but was missing in our table. Fix this, and
add a spec comment for what is missing. Also begin a basic text based
test for URL, so we can get some coverage of LibWeb's usage of URL too.
Since we may redirect stdout, stderr, or both to the file description
referring to the nohup.out file, there is no need to keep the fd that
created that file description around.
This patch changes the way StructuredSerializeInternal() serialize
strings by storing four bytes into a 32-bit entry, instead of one code
point per 32-bit entry.
StructuredDeserialize() has also been changed to deserialize strings by
the same ruleset.
This takes the previous alternation optimisation and applies it to all
the alternation blocks instead of just the few instructions at the
start.
By generating a trie of instructions, all logically equivalent
instructions will be consolidated into a single node, allowing the
engine to avoid checking the same thing multiple times.
For instance, given the pattern /abc|ac|ab/, this optimisation would
generate the following tree:
- a
| - b
| | - c
| | | - <accept>
| | - <accept>
| - c
| | - <accept>
which will attempt to match 'a' or 'b' only once, and would also limit
the number of backtrackings performed in case alternatives fails to
match.
This optimisation is currently gated behind a simple cost model that
estimates the number of instructions generated, which is pessimistic for
small patterns, though the change in performance in such patterns is not
particularly large.
This switches to using a simple string equality check if the regex
pattern is strictly a string literal.
Technically this optimisation can also be made on bounded literal
patterns like /[abc]def/ or /abc|def/ as well, but those are
significantly more complex to implement due to our bytecode-only
approach.
Similar to floor and ceil, we were forcing the values to be doubles here
Also adds a big FIXME about my findings trying to add a general
implementation for these
Both GCC and Clang inline this function to use bit-wise logic and/or
appropriate instructions even on -O0 and allow their use in a constexpr
context, see
https://godbolt.org/z/de1393vha
Rather than set a hacky scale factor on our QIconEngine, just set the
icon size for the toolbar icons. This avoids the icons being
unnecessarily scaled in other places (i.e. the context menu).
In order to follow spec text to achieve this, we need to change the
underlying representation of a host in AK::URL to deserialized format.
Before this, we were parsing the host and then immediately serializing
it again.
Making that change resulted in a whole bunch of fallout.
After this change, callers can access the serialized data through
this concept-host-serializer. The functional end result of this
change is that IPv6 hosts are now correctly serialized to be
surrounded with '[' and ']'.
This implementation will allow us to fix serialization of IPv6
addresses not being surrounded by '[' and ']'.
Nothing is calling this function yet - this will come in the next
(larger) commit where the underlying host representation inside of
AK::URL is changed from DeprecatedString to URL::Host.
This doesn't seem trivial enough to be defining in the header like this,
and should not be a performance critical function anyhow.
Also add spec comments while we are at it, and a FIXME since we do not
seem to exactly align.
And use them where applicable. This will allow us to store the host in
the deserialized format as the spec specifies.
Ideally these typdefs would instead be the existing AK interfaces, but
in the meantime, we can just use this.
This reduces the number of tasks to schedule, and the complexity of the
build system integrations for the BindingsGenerator. As a bonus, we move
the "only write if changed" feature into the generator to reduce the
build system load on generated files for this generator.
