These have a few rules that we didn't follow in most cases:
- CSS-wide keywords are not allowed. (inherit, initial, etc)
- `default` is not allowed.
- The above and any other disallowed identifiers must be tested
case-insensitively.
This introduces a `parse_custom_ident_value()` method, which takes a
list of disallowed identifier names, and handles the above rules.
These control the state of CSS counters.
Parsing code for `reversed(counter-name)` is implemented, but disabled
for now until we are able to resolve values for those.
Previously, we always cast to a HTMLInputElement when getting the value
of an auto directionality form associated element. This caused
undefined behavior when determining the directionality of an element
that wasn't a HTMLInputElement.
The if statement in the dispatch implies we are in the idle state, so of
course the active time will always be undefined. If this was cancelled
via a call to cancel(), we can save the time at that point. Otherwise,
just send 0.
Previously, we would apply any adopted style sheet to the document if
its alternate flag was not set. This meant that all adopted style
sheets would be applied, since constructed style sheets never have this
flag set.
Fixes crashing after following steps:
1. Open https://github.com/SerenityOS/serenity
2. Click on "Pull requests" tab
The problem was `navigable` null pointer dereferencing in
`decode_favicon()`. But navigable is null because the document was
created by `parseFromString()` DOMParser API.
With this change we skip fetching initiated by HTMLLinkElement if
document does not have a browsing context:
- Favicon is not displayed for such documents so no need to fetch.
- Stylesheets fetching won't affect such document because style or
layout does not run for them.
We have to unregister link element stylesheets from the old document's
StyleSheetList when moving them into a new document.
This makes it possible to load GitHub contributor graphs. :^)
There were two things going wrong here:
- Transformed text (via CSS text-transform) was not invalidated after a
`@media` rule changed state.
- Removing the `style` attribute from an element didn't trigger a style
update.
This fixes the regression in subtest 46 of Acid3.
Fixes#21777
Previously @media rule conditions could be updated by assigning to
`conditionText`. This change aligns our implementation with the CSSOM
specification, which says `CSSConditionRule.conditionText` should be
read-only.
This method asynchronously replaces the content of the given stylesheet
with the content passed to it.
An exception is thrown if this method is used by a stylesheet not
created with the `CSSStyleSheet()` constructor.
This allows positioning a child SVG relative to its parent SVG.
Note: These have been implemented as CSS properties as in SVG 2, these
are geometry properties that can be used in CSS (see
https://www.w3.org/TR/SVG/geometry.html), but there is not much browser
support for this. It is nicer to implement than the ad-hoc SVG
attribute parsing though, so I feel it may make sense to port the rest
of the attributes specified here (which should fix some issues with
viewport relative sizes).
When the caller of NumericCalculationNode::resolve() does not provide
a percentage_basis, it expects the method to return a raw percentage
value.
Fixes crashing on https://discord.com/login
