Enforce the use of the CPU backend in test mode to ensure that ref-tests
produce consistent results across different computers, as this
consistency cannot be achieved with the GPU backend.
We already have a FlyString of its value from parsing, and most users
also want a FlyString from it, so let's use that instead of converting
backwards and forwards.
The two users that did want a String are:
- Quotes, which make sense as FlyString instead, so I've converted that.
- Animation names, which should probably be FlyString too, but the code
currently also allows for other kinds of StyleValue, and I don't want
to dive into this right now to figure out if that's needed or not.
Each item in clip_paths represents a glyph run, and applying them as a
clip in intersection mode one by one results in an empty clip. Instead,
now all clip paths are joined and applied as a clip together.
This change fixes rendering of "background-clip: text" when an element
has more than one glyph run.
Fixed ref-test: Tests/LibWeb/Ref/css-background-clip-text.html
Implement for CreatePerIterationEnvironment for 'for' loops per the Ecma
Standard. This ensures each iteration of a 'for' loop has its own
lexical environment so that variables declared in the loop are scoped to
the current iteration.
Couple fixes found by reading the spec:
- Repeating should also happen in negative direction, so the whole
[0, 1] is covered.
- Leftmost and rightmost stops should be clamped to [0, 1] range if
needed, because Skia ignores everything outside of this range.
We currently have 2 base64 coders: one in AK, another in LibWeb for a
"forgiving" implementation. ECMA-262 has an upcoming proposal which will
require a third implementation.
Instead, let's use the base64 implementation that is used by Node.js and
recommended by the upcoming proposal. It handles forgiving decoding as
well.
Our users of AK's implementation should be fine with the forgiving
implementation. The AK impl originally had naive forgiving behavior, but
that was removed solely for performance reasons.
Using http://mattmahoney.net/dc/enwik8.zip (100MB unzipped) as a test,
performance of our old home-grown implementations vs. the simdutf
implementation (on Linux x64):
Encode Decode
AK base64 0.226s 0.169s
LibWeb base64 N/A 1.244s
simdutf 0.161s 0.047s
When traversing the layout tree to find an appropriate box child to
derive the baseline from. Only the child's margin and offset was being
applied. Now we sum each offset on the recursive call.
Previously, the presence of surrounding whitespace would give file paths
the `https` schema instead of the `file` schema, making navigation
unsuccessful.
The spec says to just call the XML serialization algorithm, but it
returns the "outer serialization", and we need the "inner" one. Let's
just concatenate serializations of children; then the result produced is
similar to one from Blink or Gecko.
With this we pass an additional ~2100 tests.
We are left with 7106 WASM fails :).
There's still some test cases in the iNxM tests that fail with
this PR, but they are somewhat weird.
Co-authored-by: Diego Frias <styx5242@gmail.com>
Previously, the scrollbar thumbs were (almost) invisible, when the page
background color was similar to the scrollbar thumb color (DarkGray).
Now, in addition to the filled rounded rectangle, the scrollbar thumbs
are painted with a 1px solid LightGrey border. On a white or light color
background the border stays invisible.
This method puts the given node and all of its sub-tree into a
normalized form. A normalized sub-tree has no empty text nodes and no
adjacent text nodes.
These methods were overriding properties specified by the EventInit
property bags in the constructor for WheelEvent and MouseEvent.
They appear to be legacy code and no longer relevant, as they would have
been used for ensuring natively dispatched events had the correct
properties --- This is now done in separate create methods, such as
MouseEvent::create_from_platform_event.
This fixes a couple WPT failures (e.g. in
/dom/events/Event-subclasses-constructors.html)
Previously the input element was displayed with value 0, when no value
was set in the HTML. Now it uses `value_sanitization_algorithm()`, which
will calculate the default value.
In `value_sanitization_algorithm()` there was a logical mistake/typo.
The comment from the spec says "unless the maximum is less than the
minimum".
The added layout test would fail without the code changes.
Fixes#520
When the min option is given the read will only be fulfilled when there
are min or more elements available in the readable byte stream.
When the min option is not given the default value for min is 1.
This change makes find-in-page ignore content that’s been added to the
document using CSS ::after or ::before pseudo-elements. Ignoring such
pseudo-element content for find-in-page matches the behavior in Chrome
and Safari (though not in Firefox).
Otherwise, without this change, find-in-page doesn’t ignore the
pseudo-element content, and we instead crash in
DOM::Range::common_ancestor_container after hitting an assert, due to
the start container and end container for the matched range not having a
common ancestor.
Fixes https://github.com/LadybirdBrowser/ladybird/issues/514
On PowerPC 64 pointers can use all 64 bits, however by convention on
Linux user-space addresses use only the lower 43 bits.
I'm not 100% certain that the masking off of the 16 high bits is the
proper solution, but it matches the rest of the LibJS code which assumes
pointers only use the lower 48 bits.
https://www.kernel.org/doc/ols/2001/ppc64.pdf
Skia does not have built-in support for gradient transition hints. So
instead of adding custom gradient painting, now we do the same thing as
other engines and preprocess color stops by replacing transition hints
with a bunch of points lying between adjacent color stops and calculated
using non-linear formula from the spec. As a result we get visually
close enough rendering we would get by applying spec-formula
individually to each point of a gradient.
Previously the entire slider track was colored.
Now only the lower part of the slider track (left side of the thumb) is
colored.
Chrome and Firefox do the same.
The first time Document learns its viewport size, we now suppress firing
of the resize event.
This fixes an issue on multiple websites that were not expecting resize
events to fire so early in the loading process.
Previously, setting CSS `line-height: 0` on an `input` element would
result in no text being displayed.
Other browsers handle this by setting the minimum height to the
"normal" value for single line inputs.
Now that we pass an `old_value` parameter to `attribute_changed` it is
no longer necessary to store the current attribute state in
`HTMLScriptElement`.
These were just here to create a nicer error message for debugging.
A release build will still crash in the exact same place, but now you'll
need to get a backtrace the normal way instead.
From https://html.spec.whatwg.org/multipage/scripting.html#script-processing-model:
When a script element el that is not parser-inserted experiences one
of the events listed in the following list, the user agent must
immediately prepare the script element el:
- [...]
- The script element is connected and has a src attribute set where
previously the element had no such attribute.
We now defer looking up the various identifiers by IdentifierTableIndex
until the last moment. This allows us to avoid the retrieval in common
cases like when a property access is cached.
Knocks a ~12% item off the profile on https://ventrella.com/Clusters/
The previous character used, @, conflicted with CSS. % is used by other
templating engines, and doesn't conflict with language features (e.g.
media queries).
NaN bit patterns are now (hopefully) preserved. `static_cast` does not
preserve the bit pattern of a given NaN, so ideally we'd use some other
sort of cast and avoid `static_cast` altogether, but that's a large
change for this commit. For now, this fixes the issues found in spec
tests.
Previously, when `WindowOrWorkerGlobalScope.reportError()` was called
the `filename` property of the dispatched error event was blank. It is
now populated with the full path of the active script.
The style of input and textarea elements is now invalidated when focus
is changed to a new element. This ensures any `:focus` selectors are
applied correctly.
This allows global `let` and `const` variable accesses to be cached
by the GetGlobal instruction, and works even when the access is in a
different translation unit from the declaration.
Knocks a ~10% item off the profile on https://ventrella.com/Clusters/
When compiling with `-O2 -g1` optimizations (as done in the main
Serenity build), no out-of-line definitions end up emitted for
`Value::to_numeric`, causing files that reference the function but don't
include the definition from `ValueInlines.h` to add an undefined
reference in LibJS.so.
(cherry picked from commit 85b7ce8c2f6daf0db80e801d7fb2503d070765ce)
The logic of the comment "the region between the high boundary and the
maximum value must be treated as the optimum region" is correct.
However, the code below covered only two cases, the optimum case was
missing.
Fixes#473
This commit replaces all TLS connection code with wolfssl.
The certificate parsing code has to remain for now, as wolfssl does not
seem to have any exposed API for that.
Like 1132c858e9, out-of-flow elements such
as float elements would get inserted into block level `::before` and
`::after` pseudo-element nodes when they should instead be inserted as a
sibling to the pseudo element. This change fixes that.
This fixes a few layout issues on the swedish tax agency website
(skatteverket.se). :^)
unofficial-skia is a vcpkg-specific package. With this change ladybird
can be built against skia as provided by system package managers such as
guix, mingw, and (soon) nix. All those packages include a .pc file, so
we use pkg-config.
The Replacement Character (U+FFFD) is most commonly used to signal a
text encoding error, i.e. when a stream of bytes couldn't be converted
to a sequence of code points. For glyphs that don't exist in a
particular font, our rendering logic already does the right thing by
drawing empty boxes (`.notdef`); let's not forcibly turn these into
U+FFFD during rendering.
Skia now uses GPU-accelerated painting on Linux if Vulkan is available.
Most of the performance gain is currently negated by reading the GPU
backend back into RAM to pass it to the Browser process. In the future,
this could be improved by sharing GPU-allocated memory across the
Browser and WebContent processes.
This will reduce log noise when visiting sites
that have a lot of filtered content.
Previously, red error text would be displayed in
the logs for each filtered URL.
Fetch requests from web workers fail CORS checks because the origin is
not inherited from the outside settings. Ensure web worker origin is
correctly inherited from outside settings
GPU painter that uses AccelGfx is slower and way less complete compared
to both default Gfx::Painter and Skia painter. It does not make much
sense to keep it, considering Skia painter already uses Metal backend on
macOS by default and there is an option to enable GPU-accelerated
backend on linux.
This allows selection to work within shadow roots and prevents the
selection being cleared if the mouse moves outside of the current
document or shadow root.
This call is used to inform the chrome that it should display a tooltip
now and avoid any hovering timers. This is used by <video> tags to
display the volume percentage when it is changed.
Now instead of sending the position in which the user entered the
tooltip area, send just the text, and let the chrome figure out how to
display it.
In the case of Qt, wait for 600 milliseconds of no mouse movement, then
display it under the mouse cursor.
Previously, unnecessary boundary checks were being done when
constructing the range objects used to represent find in page matches.
These checks are no longer performed leading to a significant speedup
when performing find in page queries on pages containing a lot of text.
The first step of the find in page algorithm is to walk the layout tree
of each document on the page and construct a list of strings against
which to search for matches.
Previously, this was being done for each new query, even when the
page content hadn't been updated. The output of this process is now
cached in the viewport node of the associated document. This ensures
that this process is no longer repeated unnceessarily.
Unit tests on macOS deadlock because the WebContent process is waiting
for the next opportunity to render before a screenshot is taken. For
some reason unknown to myself, this opportunity never arrives. In
order to not deadlock, screenshot requests are now also processed
separately from rendering.
Since "Character" tokens do not have an "end position", viewing source
drops the source contents following the final non-"Character" token.
By handling the EOF token and breaking out of the loop, we avoid this
issue.
This is an attempt to fix the hanging CI on macOS caused by some
screenshot requests being stuck unprocessed. With this change, we at
least make sure that the HTML event loop processing, which triggers
repainting, will happen as long as there are navigables that need to be
repainted.
This avoids an unecessary lossy conversion for the current time from
double to i32. And avoids an UBSAN failure on macOS that's dependent
on the current uptime.
From SkPaint.h:
"Sets the thickness of the pen used by the paint to outline the shape.
A stroke-width of zero is treated as "hairline" width. Hairlines are
always exactly one pixel wide in device space (their thickness does not
change as the canvas is scaled)."
While we expect stroke-width=0 to simply not be painted.
This ensures that removing the last view from a WebContentClient will
close its associated process, assuming the WebContent process is not
hung. A more drastic measure will be needed to trigger forcefully
killing the process when it doesn't respond to this request.
This large commit also refactors LibWebView's process handling to use
a top-level Application class that uses a new WebView::Process class to
encapsulate the IPC-centric nature of each helper process.
Doing so results in incorrect values being created, ultimately leading
to traps or errors.
(cherry picked from commit f6c3b333334f7bb5314a844804cb259cf277005e)
The ChunkIterator now limits a chunk to using only one font (before, it
was possible to have a chunk with >1 font, when `unicode-range` CSS
property is used).
This change allows us to reduce some complexity in the text shaping and
painting code and makes us compatible with the APIs in Skia and
HarfBuzz.
Typeface is a more widely used name for the data represented by
class previously named VectorFont.
Now:
- Typeface represents decoded font that is not ready for rendering
- ScaledFont represents the combination of typeface and size for
rendering
Implements the same optimization we already have for DrawGlyphRun by
saving unscaled glyph run and scale factor in a painting command, which
allows to avoid copying of glyphs vector to apply scaling during
recording.
By moving this up to ConnectionBase, we have less custom code for each
templated subclass, and it gets a little easier to edit the code since
you don't have to rebuild as much when making changes.
If Metal context and IOSurface are available, Skia painter will use
Ganesh GPU backend on macOS, which is noticeably faster than the default
CPU backend.
Painting pipeline:
1. (WebContent) Allocate IOSurface for backing store
2. (WebContent) Allocate MTLTexture that wraps IOSurface
3. (WebContent) Paint into MTLTexture using Skia
4. (Browser) Wrap IOSurface into Gfx::Painter and use
QPainter/CoreGraphics to blit backing store into viewport.
Things we should improve in the future:
1. Upload textures for images in advance instead of doing that before
every repaint.
2. Teach AppKit client to read directly from IOSurface instead of
copying.
This is a non-standard API that other browsers implement, which
highlights matching text in the current window.
This is just a thin wrapper around our find in page functionality, the
main motivation for adding this API is that it allows us to write tests
for our find in page implementation.
This is mostly useful when some application-level logic needs to
iterate over all child processes. A more robust Process abstraction
would make this easier.
They are now blocked on pages which:
- Don't have an opaque origin (should be only user-initiated or about:)
- Aren't other file: pages
- Aren't other resource: pages
The `deepEquals` algorithm used for testing was naive, and incorrectly
evaluated equality of objects in some cases. The new algorithm considers
that the second object could have more keys than the first, and compares
the prototypes of the objects.
An input event is now fired when the step up or step down button of an
input element of type number is clicked.
This ensures that any associated <output> element is updated when these
buttons are clicked.
Input elements without a defined user-interaction behavior need to fire
an input event when the user changes the element's value in some way.
This change moves the code to do this into its own function and adds
some spec text to explain what is being done.
The changes to tests are due to LibTimeZone incorrectly interpreting
time stamps in the TZDB. The TZDB will list zone transitions in either
UTC or the zone's local time (which is then subject to DST offsets).
LibTimeZone did not handle the latter at all.
For example:
The following rule is in effect until November 18, 6PM UTC.
America/Chicago -5:50:36 - LMT 1883 Nov 18 18:00u
The following rule is in effect until March 1, 2AM in Chicago time. But
at that time, a DST transition occurs, so the local time is actually
3AM.
America/Chicago -6:00 Chicago C%sT 1936 Mar 1 2:00
This required updating some LibJS spec steps to their latest versions,
as the data expected by the old steps does not quite match the APIs that
are available with the ICU. The new spec steps are much more aligned.
Multiple APIs have moved from the DOM Parsing and Serialization spec to
HTML.
Updates spec URLs and comments.
Delete InnerHTML file:
- Make parse_fragment a member of Element, matching serialize_fragment
on Node.
- Move inner_html_setter inline into Element and ShadowRoot as per the
spec.
Add FIXME to Range.idl for Trusted Types createContextualFragment
This stuff has moved from a mixin defined by the DOM Parsing spec, over
to the HTML spec, where they are now defined as partial interfaces for
Element and ShadowRoot.
There's also some new functionality that we don't implement yet, so
patch marks them as FIXME properties.
And let the old shadow_root(), which was only supposed to be used by
bindings, be called shadow_root_for_bindings() instead.
This makes it much easier to read DOM code, and we don't have to worry
about when to use shadow_root_internal() or why.
Implement setLineDash() and getLineDash() in CanvasPathDrawingStyles,
which write/read from the CanvasState object.
This doesn't implement the actual drawing of a dashed line, but at least
sites using the Chart.js library no longer fail with an exception.
Unfortunately the Painter classes don't support dashed/dotted lines
based on segments yet.
