This uses ICU for all of the Intl.PluralRules prototypes, which lets us
remove all data from our plural rules generator.
Plural rules depend directly on internal data from the number formatter,
so rather than creating a separate Locale::PluralRules class (which will
make accessing that data awkward), this adds plural rules APIs to the
existing Locale::NumberFormat.
This uses ICU for the Intl.DateTimeFormat `format` `formatToParts`,
`formatRange`, and `formatRangeToParts`.
This lets us remove most data from our date-time format generator. All
that remains are time zone data and locale week info, which are relied
upon still for other interfaces. So they will be removed in a future
patch.
Note: All of the changes to the test files in this patch are now aligned
with other browsers. This includes:
* Some very incorrect formatting of Japanese symbols. (Looking at the
old results now, it's very obvious they were wrong.)
* Old FIXMEs regarding range formatting not including the start/end date
when only time fields were requested, but the dates differ.
* Day period inconsistencies.
Methods and attributes marked with [FIXME] are now implemented as
direct properties with the value `undefined` and are marked with the
[[Unimplemented]] attribute. This allows accesses to these properties
to be reported, while having no other side-effects.
This fixes an issue where [FIXME] methods broke feature detection on
some sites.
This uses ICU for the Intl.NumberFormat `format` and `formatToParts`
prototypes. It does not yet port the range formatter prototypes.
Most of the new code in LibLocale/NumberFormat is simply mapping from
ECMA-402 types to ICU types. Beyond that, the only algorithmic change is
that we have to mutate the output from ICU for `formatToParts` to match
what is expected by ECMA-402. This is explained in NumberFormat.cpp in
`flatten_partitions`.
This lets us remove most data from our number format generator. All that
remains are numbering system digits and symbols, which are relied upon
still for other interfaces (e.g. Intl.DateTimeFormat). So they will be
removed in a future patch.
Note: All of the changes to the test files in this patch are now aligned
with both Chrome and Safari.
Note: We keep locale parsing and syntactic validation as-is. ECMA-402
places additional restrictions on locales above what is required by the
Unicode spec. ICU doesn't provide methods that let us easily check those
restrictions, whereas LibLocale does. Other browsers also implement
their own validators here.
This introduces a locale cache to re-use parsed locale data and various
related structures (not doing so has a non-negligible performance impact
on Intl tests).
The existing APIs for canonicalization and display names are pretty
intertwined, so they must both be adapted at once here. The results of
canonicalization are slightly different on some edge cases. But the
changed results are actually now aligned with Chrome and Safari.
We were already linking librt to LibCore for shm_open and friends.
Now that we build the code that uses POSIX shm into LibCoreMinimal, we
need to link librt into that as well.
The Encoding specification maps ISO-8859-1 to windows-1252 and expects
the windows-1252 translation table to be used, which differs from
ISO-8859-1 for 0x80-0x9F.
Other contexts expect to get the actual ISO-8859-1 encoding, with 1-to-1
mapping to U+0000-U+00FF, when requesting it.
`decoder_for_exact_name` is introduced, which skips the mapping from
aliases to the encoding name done by `get_standardized_encoding`.
This was used to convert markdown into HTML for display in the browser,
but no other browser behaves this way, so let's simplify things by
removing it.
(Yes, we could implement all kinds of "convert to HTML and display" for
every file format out there, but that's far outside the scope of a
browser engine.)
On my Mac system with Homebrew SDL + self-built Clang, SDL2's include
directory is not in the library search path by default. Add it to
unbreak the build.
This allows searching for text with case-insensitivity. As this is
probably what most users expect, the default behavior is changes to
perform case-insensitive lookups. Chromes may add UI to change the
behavior as they see fit.
GC-allocated objects should never have JS::SafeFunction/JS::Handle
fields.
For now the plugin only emits warnings here, as there are many cases
of this occurring in the codebase that aren't trivial to fix. It is also
behind a CMake flag since it is a _very_ loud warning.
Now that the lambda capture plugin isn't full of false-positives, we can
make the jump and start halting builds for these errors. It also allows
these plugins to be useful in CI.
Instead of being opt-out with NOESCAPE, it is now opt-in with ESCAPING.
Opt-out is ideal, but unfortunately this was extremely noisy when
compiling the entire codebase. Escaping functions are rarer than non-
escaping ones, so let's just go with that for now.
This also allows us to gradually add heuristics for detecting missing
ESCAPING annotations and emitting them as errors. It also nicely matches
the spelling that Swift uses (@escaping), which is where this idea
originally came from.
This allows readonly attributes and functions to have a 'FIXME' extended
attribute added to the IDL definition to stub out the function. This
makes debugging web compatibility issues on live sites much easier as a
FIXME message is logged whenever one of these functions or attributes
are called.
Support still needs to be extended to non-readonly attributes (and some
other special cases), but this should allow us to set a big percentage
of the commented out attributes/functions in IDL files to instead use
this extended attribute.
Now both /bin/zcat and /bin/gunzip are symlinks to /bin/gzip, and we
essentially running it in decompression mode through these symlinks.
This ensures we don't maintain 2 versions of code to decompress Gzipped
data anymore, and handle the use case of gzipped-streaming input only
once in the codebase.
This is a more general and robust replacement of the LibJSGCVerifier.
We want to add more generic static analysis, and this new plugin will
be built in a way that integrates into the rest of the system.
The high-level design is that we have a static method on WebPWriter that
returns an AnimationWriter object. AnimationWriter has a virtual method
for writing individual frames. This allows streaming animations to disk,
without having to buffer up the entire animation in memory first.
The semantics of this function, add_frame(), are that data is flushed
to disk every time the function is called, so that no explicit `close()`
method is needed.
For some formats that store animation length at the start of the file,
including WebP, this means that this needs to write to a SeekableStream,
so that add_frame() can seek to the start and update the size when a
frame is written.
This design should work for GIF and APNG writing as well. We can move
AnimationWriter to a new header if we add writers for these.
Currently, `animation` can read any animated image format we can read
(apng, gif, webp) and convert it to an animated webp file.
The written animated webp file is not compressed whatsoever, so this
creates large output files at the moment.
An AudioNode is the fundamental building block used in 'Audio
Contexts'. In our immediate case, the audio node we are working towards
implementing is an oscillating source node.
Previously the GML compiler did not support object properties such as
`content_widget: @GUI::Widget{}` for GUI::ScrollableContainerWidget;
this commit adds support for such properties by simply calling
`set_<key>(<TProperty>&)` on the object.
This commit also removes the previous hack where
ScrollableContainerWidget was special-cased to have its singular child
used as the content widget; the only GML file using this behaviour was
also changed to be in line with 'proper' GML as handled by the GML
Playground.
This makes it possible to use externally defined toplevel widgets that
have no C++ header defining them.
Note that this only allows widget-native properties on the object, as
the actual original definition is not available.
This was resulting in a whole lot of rebuilding whenever a new IDL
interface was added.
Instead, just directly include the prototype in every C++ file which
needs it. While we only really need a forward declaration in each cpp
file; including the full prototype header (which itself only includes
LibJS/Object.h, which is already transitively brought in by
PlatformObject) - it seems like a small price to pay compared to what
feels like a full rebuild of LibWeb whenever a new IDL file is added.
Given all of these includes are only needed for the ::initialize
method, there is probably a smart way of avoiding this problem
altogether. I've considered both using some macro trickery or generating
these functions somehow instead.
The prototype header generation was getting a bit long.
This is also a step towards generating code for IDL files only
containing an enum definition without any interface. In that case we
can't put the enum definitions alongside the prototype - there is no
prototype to speak of.
We should never hit this case - so don't generate code for it, and
instead put in a VERIFY_NOT_REACHED.
Also improve the formatting of the generated code to closer match the
serenity code style.
Instead of a cryptic error that occurs due to an interface with no name,
fail early on by explicitly checking that an interface was parsed with a
name.
This change moves WebAssembly related data that was previously globally
accessible into the `WebAssemblyCache` object and creates one of these
per global object. This ensures that WebAssembly data cannot be
accessed across realms.
The following command was used to clang-format these files:
clang-format-18 -i $(find . \
-not \( -path "./\.*" -prune \) \
-not \( -path "./Base/*" -prune \) \
-not \( -path "./Build/*" -prune \) \
-not \( -path "./Toolchain/*" -prune \) \
-not \( -path "./Ports/*" -prune \) \
-type f -name "*.cpp" -o -name "*.mm" -o -name "*.h")
There are a couple of weird cases where clang-format now thinks that a
pointer access in an initializer list, e.g. `m_member(ptr->foo)`, is a
lambda return statement, and it puts spaces around the `->`.
This refactor eliminates the need for a second "fd passing socket" on
Lagom, as it uses SCM_RIGHTS in the expected fashion, to send fds along
with the data of our Unix socket message.
When launched with the new --enable-idl-tracing option, we now log
every call to web platform APIs declared via IDL, along with the
arguments passed.
This can be very helpful when trying to figure out what a site is
doing, especially if it's not doing what you'd expect.
C++ classes that inherit from JS::Cell and are leaf classes should have
their own type-specific allocator. We also do this for non-leaf classes
that are constructable from JS.
To do this, JSON messages are passed to communicate information about
each class the Clang tool comes across. This is the only message we have
to worry about for now, but in the future if we want to transmit
different kinds of information, we can make this message format more
generic.
This allows each Clang process to send JSON messages to the
orchestrating Python process, which aggregates the message and can do
something with them all at the end. This is required because we run
Clang multithreaded to speed up the tool execution.
I did try to add a second frontend tool that accepts all the files at
once, but it was _extremely_ slow, so this is the next best thing.
For example, consider the following code snippet:
Vector<Function<void()>> m_callbacks;
void add_callback(Function<void()> callback)
{
m_callbacks.append(move(callback));
}
// Somewhere else...
void do_something()
{
int a = 10;
add_callback([&a] {
dbgln("a is {}", a);
});
} // Oops, "a" is now destroyed, but the callback in m_callbacks
// has a reference to it!
We now statically detect the capture of "a" in the lambda above and flag
it as incorrect. Note that capturing the value implicitly with a capture
list of `[&]` would also be detected.
Of course, many functions that accept Function<...> don't store them
anywhere, instead immediately invoking them inside of the function. To
avoid a warning in this case, the parameter can be annotated with
NOESCAPE to indicate that capturing stack variables is fine:
void do_something_now(NOESCAPE Function<...> callback)
{
callback(...)
}
Lastly, there are situations where the callback does generally escape,
but where the caller knows that it won't escape long enough to cause any
issues. For example, consider this fake example from LibWeb:
void do_something()
{
bool is_done = false;
HTML::queue_global_task([&] {
do_some_work();
is_done = true;
});
HTML::main_thread_event_loop().spin_until([&] {
return is_done;
});
}
In this case, we know that the lambda passed to queue_global_task will
be executed before the function returns, and will not persist
afterwards. To avoid this warning, annotate the type of the capture
with IGNORE_USE_IN_ESCAPING_LAMBDA:
void do_something()
{
IGNORE_USE_IN_ESCAPING_LAMBDA bool is_done = false;
// ...
}
As defined in: https://w3c.github.io/pointerevents
With the exception of the getCoalescedEvents and getPredictedEvents
APIs.
There are still many other parts of that spec (such as the event
handlers) left to implement, but this does get us at least some of the
way.
Previously, parsing would continue if a parameter wasn't given a name
and malformed code would be generated, leading to hard to diagnose
compiler errors.
These allow us to binary search the code point compositions based on
the first code point being combined, which makes the search close to
O(log N) instead of O(N).
Previously we would only warn about missing calls to visit inside
visit_edges implementations, now we warn as well when there's no
visit_edges implementation at all.
This lets us avoid false positives when a GCPtr-wrapped member is only
a weak reference which is automatically updated by the GC when the
member's gc state is updated.
clang doesn't make all `Base::visit_edges()` calls CXXMemberCallExprs
This would lead to false positives like in HeapFunction,
where the matcher would fail to match and report a warning.
Also previously the matcher would succeed
if the visited class is missing the call to `Base::visit_edges()`
but an included class has a correct method.
The new matcher checks the current class for `visit_edges`-overrides
and matches all `visit_edges`-memberExprs inside,
checking those for starting with `Base::`.
This seems to get rid of the false positives
and should be more correct detecting missing calls.
When building, clang would throw errors about dangling references.
Extracting `template_args` to a variable before the loop and
indexing into that seems to fix the errors.
To the 'convert to int' AO. Nothing actually makes use of the [Clamp]
attribute yet in our implementation, but we may as well add support for
it now since it is trivial to do do.
This partially reverts d1e2d2a4, which made us explicitly specify the
library type for lagom libraries. This broke the fuzzer build, which
relies on the BUILD_SHARED_LIBS cmake variable to enable static builds.
Let's not re-invoke the "page did start loading" IPC when the history
state is pushed/replaced. It's a bit misleading (the change does not
actually load the new URL), but also the chromes may do more work than
we want when we change the URL.
Instead, add a new IPC for the history object to invoke.
Most browsers have some indicator when audio is playing in a tab, which
makes it easier to find that tab and mute unwanted audio. This adds an
IPC to allow the Ladybird chromes to do something similar.
This is achieved by moving ClauseHeader::{AbstractOperation,Accessor,
Method} to Function.h itself and storing them in FunctionDeclaration.
This commit also introduces QualifiedName class that is used to store
function's name split by '.' (just like it appear in the spec).
And add a verification step to the emoji data generator to ensure all
emoji are listed in this file. This file will be used as a sources list
in both the CMake and GN build systems.
It is probably possible to generate this list. But in a first attempt,
the CMake code to set the file as a dependency of a pseudo target, which
would then parse the file and install the listed emoji was getting quite
verbose and complicated. So for now, let's just maintain this list.
Previously, the invalid value default wasn't taken into account when
determining the value that should be returned from the getter of an
enumerated attribute. This caused a crash when an enumerated attribute
of type DOMString? was set to an invalid value.
This URL library ends up being a relatively fundamental base library of
the system, as LibCore depends on LibURL.
This change has two main benefits:
* Moving AK back more towards being an agnostic library that can
be used between the kernel and userspace. URL has never really fit
that description - and is not used in the kernel.
* URL _should_ depend on LibUnicode, as it needs punnycode support.
However, it's not really possible to do this inside of AK as it can't
depend on any external library. This change brings us a little closer
to being able to do that, but unfortunately we aren't there quite
yet, as the code generators depend on LibCore.
Text can be rendered in various ways in PDFs: Filled, stroked,
both filled and stroked, set as clipping path, hidden, or
some combinations thereof.
We don't implement any of this at the moment except "filled".
Hidden text is used in scanned documents: The image of the scan is
drawn in the background, and then OCRd text is "drawn" as hidden
on top of the scanned bitmap. That way, the (hidden) text can be
selected and copied, and it looks like you're selecting text from
the scanned bitmap. Find-in-page also works similarly. (We currently
have neither text selection nor find-in-page, but one day we will.)
Now that we have pretty good support for CCITT and are growing some
support for JBIG2, we now draw both the scanned background image
as well as the foreground text. They're not always perfectly aligned.
This change makes it so that we don't render text that's marked as
hidden. (We still do most of the coordinate math, which will probably
come in handy at some point when we implement text selection.)
This makes these scanned documents appear as they're supposed to
appear (at least in documents where we manage to decode the background
bitmap).
This also adds a debug option to force rendering of hidden text.
This SpecParser.cpp had an ever increasing number of lines and contained
an implementation of 8 different classes. So I figured out it's about
the time to split it.
No behavior change.
PDFViewer has this, and it's useful for PDFs that have the same
text both as a scanned bitmap in the background as well as using
vector text in the foreground.
xib changes: Added a new menu entry connected to `toggleShowImages:`,
and also toggled the initial state of two menu entries. (The latter
part has no effect when the program runs since we dynamically update
this state, but it makes the menu entries show their initial state
in Xcode's menu editor.)
We had previous implemented some plumbing for file input elements in
commit 636602a54e.
This implements the return path for chromes to inform WebContent of the
file(s) the user selected. This patch includes a dummy implementation
for headless-browser to enable testing.
This commit fixes a regression introduced in
1528e9109c.
Turns out that the type of `this_value` in the property setter of the
Window object depends on how the variable is accessed. If the property
is accessed as a global variable, then this_value is of type `Window`.
For example:
```js
performance = null
```
However, when it is accessed as a property of the window object,
`this_value` is of type `WindowProxy`. For example:
```js
window.performance = null
```
This commit updates the window property setters generator to handle
both scenarios.
With this change https://discord.com/login works again.
Along with putting functions in the URL namespace into a DOMURL
namespace.
This is done as LibWeb is in an awkward situation where it needs
two URL classes. AK::URL is the general purpose URL class which
is all that is needed in 95% of cases. URL in the Web namespace
is needed predominantly for interfacing with the javascript
interfaces.
Because of two URLs in the same namespace, AK::URL has had to be
used throughout LibWeb. If we move AK::URL into a URL namespace,
this becomes more painful - where ::URL::URL is required to
specify the constructor (and something like
::URL::create_with_url_or_path in other places).
To fix this problem - rename the class in LibWeb implementing the
URL IDL interface to DOMURL, along with moving the other Web URL
related classes into this DOMURL folder.
One could argue that this name also makes the situation a little
more clear in LibWeb for why these two URL classes need be used
in the first place.
Add support for the extended attribute "ImplementedAs" for IDL
interfaces too. This allows a class which implements an IDL interface to
have a different class name than the interface itself.
This adds a basic `mkfs.fat` utility, which can format FAT12, FAT16
and FAT32 partitions.
This does have a few limitations, namely in that FAT12 formatting is
limited to a set known floppy disk sizes, and we can only generate
512-byte sectors.
In a nutshell, when we understand that the expression is a function
call (this happens at '(' after an expression), stop parsing expression
and start parsing function arguments. This makes
`FunctionCallCanonicalizationPass` and the workaround for zero argument
function calls obsolete.
Setters for Window object should consider WindowProxy wrapper by:
- Verifying `this_value` is `WindowProxy` (not `HTML::Window`)
- Defining properties on the underlying Window object instead of on
the WindowProxy itself.
The former automatically adapts the prefix to binary and octal
output, and is what we already use in the majority of cases.
Patch generated by:
rg -l '0x\{' | xargs sed -i '' -e 's/0x{:/{:#/'
I ran it 4 times (until it stopped changing things) since each
invocation only converted one instance per line.
No behavior change.
We currently support optional integral types, but not nullable types. So
if an IDL contains e.g. "long?", passing null will be coerced to 0.
This will be used by the Inspector, but will also eventually be used by
real IDL interfaces (e.g. HTMLInputElement's selectionStart).
This can apply to optional, nullable parameters of platform types. This
will cause the generator to generate the type as
Optional<JS::GCPtr<T>> rather than JS::GCPtr<T>, allowing the
implementation to differentiate between the case where the argument was
not passed, and the case where null or undefined was passed.
Needing to differentiate these two cases is quite niche, hence why it is
an opt-in behavior.
This is a simple extension of GenericLexer, and is used in more than
just LibXML, so let's move it into AK.
The move also resolves a FIXME, which is removed in this commit.
Instead of limiting ourselves to the key of the property in the JSON,
allow overriding the function name so we can generate completely
different function signatures with very similar names to other existing
API methods (e.g. `glUniform*` vs `glUniform*v`).
