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LibWeb: Replace ARIA role static FlyStrings with an enum

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This replaces the FlyStrings for ARIA roles that were constructed in
a [[gnu::constructor]] with a single enum. I came across this as the
DOM inspector was crashing due to a null FlyString for an ARIA role.

After fixing that, I was confused as to why these roles were not an
enum. Looking at the spec there's a fixed list of roles and switching
from references to static strings to an enum was pretty much an
exercise in find and replace :).

No functional changes (outside of fixing the mentioned crash).
This commit is contained in:
MacDue 2023-01-29 19:12:00 +01:00 • committed by Linus Groh
parent f23eba1ba8
commit 890b4d7980
59 changed files with 344 additions and 327 deletions
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6
Userland/Libraries/LibWeb/DOM/Element.cpp
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@ -1282,8 +1282,8 @@ bool Element::exclude_from_accessibility_tree() const
// Elements with none or presentation as the first role in the role attribute. However, their exclusion is conditional. In addition, the element's descendants and text content are generally included. These exceptions and conditions are documented in the presentation (role) section.
// FIXME: Handle exceptions to excluding presentation role
auto role = role_or_default().to_lowercase();
if (role == ARIARoleNames::none || role == ARIARoleNames::presentation)
auto role = role_or_default();
if (role == ARIARoles::Role::none || role == ARIARoles::Role::presentation)
return true;
// TODO: If not already excluded from the accessibility tree per the above rules, user agents SHOULD NOT include the following elements in the accessibility tree:
@ -1322,7 +1322,7 @@ bool Element::include_in_accessibility_tree() const
// Elements that have an explicit role or a global WAI-ARIA attribute and do not have aria-hidden set to true. (See Excluding Elements in the Accessibility Tree for additional guidance on aria-hidden.)
// NOTE: The spec says only explicit roles count, but playing around in other browsers, this does not seem to be true in practice (for example button elements are always exposed with their implicit role if none is set)
// This issue https://github.com/w3c/aria/issues/1851 seeks clarification on this point
if ((!role_or_default().is_empty() || has_global_aria_attribute()) && aria_hidden() != "true")
if ((role_or_default().has_value() || has_global_aria_attribute()) && aria_hidden() != "true")
return true;
// TODO: Elements that are not hidden and have an ID that is referenced by another element via a WAI-ARIA property.