While traversing the DOM tree, looking for nodes that need a style
update, we were recomputing style for every node visited along the way,
even nodes that didn't themselves need a style update (but one of their
descendants did).
This avoids a bunch of completely unnecessary style recomputation on
basically every website.
This class was being copied all over the place, however, most of these
cases can be easily prevented with `auto const&` or `NonnullRawPtr<>`.
It also didn't have a move constructor, causing `Vector` to copy on
every resize as well.
Removing all these copies results in an almost 15% increase in
performance for CSS parsing, as measured with callgrind.
Range API uses UTF-16 code units to represent offsets, so replace_data()
needs to use it instead of bytes count while calculating new offsets.
Fixes incorrectly thrown exception when non-latin string is passed into
replace_data().
The spec is a bit out-of-date here, so this works around an issue with
closing top-level traversables while a dialog is open in another window
within the same agent.
For example, if a dialog is open and the session is configured to ignore
dialogs (instead of automatically closing them), then the Close Window
endpoint will have failed. We can't remove the client-side window handle
in that case.
Capabilities are configured on a per-session basis, but we were only
applying these options to the first WebContent process created. We will
need to pass these options to new windows created from that process.
This patch re-organizes capability processing so that our session can
remember them for new windows.
This is enough for a basic shadow realm to work :^)
There is more that we still need to implement here such as module
loading and fixing up the global object, but this is enough to get some
basic usage working.
This object represents the global object for a shadow realm. The IDL
generator will need to be adjusted to the '[Global]' extended attribute
and no '[Exposed]' field (the change in the test is not correct, as I
understand it), but this should be enough to get us started on
shadow realms.
With the introduction of shadow realms, there will be two different
possible host defined objects. For clarity, rename the existing host
defined object to PrincipalHostDefined.
We were neglecting to check the namespace when looking for a specific
type of element on the stack of open elements in many cases.
This caused us to confuse HTML and SVG elements.
Element::tag_name() returns an uppercased string for HTML elements,
which is usually not what's expected by the parser algorithms that look
at tag names.
Letter spacing is applied during text shaping and `shape_text` is used
in places other `InlineLevelIterator` so way may have more work to do,
however this is a good start :^).
This fixes 3/4 of the remaining test failures in wpt/png/apng. Also,
about half of the APNG files on
https://commons.wikimedia.org/wiki/Category:Animated_PNG_files
used to be broken, and they all seem to work properly now :^)
I also refactored the code to be (at least to me) simpler and more
similar to what the spec describes. As a nice side effect, there are now
fewer lines of code than before.
Lastly, I replaced DeprecatedPainter with Painter.
The current shadow realm constructor implementation was based off a
merge request to the shadow realm proposal for integration into the
web platform. However, this merge request had a bug which we had
applied a workaround for by popping off the execution stack.
Since then, the spec has had an update of:
https://github.com/tc39/proposal-shadowrealm/commit/28b0cc
Which closer aligned the mainline spec to the proposed merge request.
Now, the original shadow realm proposal merge request has been closed
and a new one has been reopened with a much more minimal set of changes
that merely adds extra arguments to HostInitializeShadowRealm, which
this commit aligns with.
Noone needs to use this any more :^)
This is somewhat AD-HOC in the constructor as it is based on an open
shadow realm merge request, but applies the intent of the change without
any change in behaviour.
The use of extract_parameter_arguments_and_body() here is to make things
a little less awkward. If we were to exactly follow spec there would be
an awkward handling of the case that no arguments were provided and we
needed to provide an empty string.
To do this, we would need to either:
- Provide an Optional<Value> for bodyString to CreateDynamicFunction
- Create a new empty PrimitiveString wrapped in a JS Value.
Either case is somewhat awkward. Instead, just refactor this logic
outside of CreateDynamicFunction and make the caller do it.
Otherwise, this commit prepares for the new definition of
HostEnsureCanCompileStrings.
All callers have been made async, i.e. they now all provide a completion
callback. Let's make the callback required to discourage any future sync
usage.
If the attribute value is the empty string `(lang="")`, the language
is set to unknown. `lang` attribute higher up in the document tree
will no longer be applied to the content of that element.
This updates the CSS parser to support the keyword 'none' in the CSS4
color functions. The underlying CSSColorValue already supports this
keyword, meaning the parser can instantiate the color directly.
We track this node ID to navigate to a default element when opening the
Inspector. So for all intents and purposes, <frameset> and <body> should
be treated the same.
We guarded one step against a null navigable, but the very next step
also needs to be protected. Let's just abort early instead. This was
caught by the following imported WPT test:
html/dom/elements/the-innertext-and-outertext-properties/innertext-setter.html
This test adds a <frame> element and immediately removes it, but the
task to process the src attribute is already queued. Note that <iframe>
would have the same issue, but this test does not include them.
NavigableContainer is our home grown concept which already contains the
AOs needed for frame and iframe elements. This patch simply aligns our
HTMLFrameElement implementation with this class.
A couple of notes:
1. The <script> in the <head> element is intentional. The <frameset>
element effectively takes the place of the <body> element, and we
cannot add a <script> to a <frameset> element.
2. We don't render <frameset> or <frame> at all. Rendering is defined
in the following spec:
https://html.spec.whatwg.org/multipage/rendering.html#frames-and-framesets
3. If you load the test page in your browser, you won't see anything,
regardless of (2). Our test infra adds a <pre> element to the "body"
element (which is the <frameset> element here). Such children will
never be rendered. In the future, we could come up with something
better for our test infra to do, but this isn't important anyways
for this test - we can still grab the <pre> element's innerText.
Unfortunately, there isn't an exact spec method to get the rendered text
of an element, including its shadow DOM. The WebDriver spec requires
just doing exactly what Selenium does.
This patch does not implement this, but is a step in the right direction
as we will now handle text transforms.
This fixes structured serialization of DataView. It was expected
to be uniform with TypedArray, which returns u32 for byte_offset().
This was covered by a number of WPT infrastructure tests, which this
commit also imports.
Previously, callers were passing the size in bytes, but the method
expected bits. This caused a crash in LibCrypto when verifying the key
size later on.
Also make the naming of local variables and parameters a little more
clear between the different AES algorithms :^)
It's actually possible for there to be no adjusted current node, when
the stack of open elements is empty. This was covered by one of the WPT
parsing tests.
We currently only use these methods with AK JSON objects, but they're
actually spec'd for JS objects, as the WebDriver spec sort of assumes
we are sending encoded JS objects over the wire.
When we fully implement JSON deserialization for executing scripts, we
will need to invoke these AOs with JS objects.
This is a bit unfortunate, but if a function provided to this struct is
overloaded, the C++ compiler cannot distinguish which overload should be
assigned to the Function object. This is explained in detail here:
https://stackoverflow.com/a/30394755
C-style function pointers do work, however, and are fine here because
we only ever assign global free functions to these members.
Instead of maintaining a list of script execution result types, which we
then map to WebDriver error types, just return the WebDriver error that
is specified by the spec. Then perform the JSON clone algorithm from the
caller in WebDriverConnection, again as specified by the spec. To do so,
this moves the JSON clone algorithm to its own file. This will also be
the future home of the JSON deserialize algorithm, which will need some
of the internal AOs implemented there.
DOMTokenList and FileList do not have the 'length' own property - their
prototypes have this property instead. So we must go through [[Get]] to
retrieve this property, which will consider the prototype.
This is an ad-hoc change to account for the fact that we may run
arbitrary code while waiting for the tasks in this function to complete.
Same exact idea as ac48222ed7, once again.
If we reach the end of the token stream when "ignoring and moving on
to the next token" in the "in body" state, we should just not move
on to the next token, since there isn't one.
Covered by various WPT HTML parsing tests that will be imported in
a subsequent commit.
Use the `writing-mode` property to determine what values should be used
for computing each element's rect on the screen. If it is a vertical
mode, swap the inline and block, lengths and offsets.
This only lays out whole inline formatting contexts vertically, and does
not currently support mixing the two orientations in a single context.
