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890b4d7980
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).
64 lines
2.5 KiB
C++
64 lines
2.5 KiB
C++
/*
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* Copyright (c) 2022, Jonah Shafran <jonahshafran@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/DOM/ARIAMixin.h>
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#include <LibWeb/DOM/ARIARoles.h>
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#include <LibWeb/Infra/CharacterTypes.h>
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namespace Web::DOM {
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// https://www.w3.org/TR/wai-aria-1.2/#introroles
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Optional<ARIARoles::Role> ARIAMixin::role_or_default() const
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{
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// 1. Use the rules of the host language to detect that an element has a role attribute and to identify the attribute value string for it.
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auto role_string = role();
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// 2. Separate the attribute value string for that attribute into a sequence of whitespace-free substrings by separating on whitespace.
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auto role_list = role_string.split_view(Infra::is_ascii_whitespace);
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// 3. Compare the substrings to all the names of the non-abstract WAI-ARIA roles. Case-sensitivity of the comparison inherits from the case-sensitivity of the host language.
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for (auto const& role_name : role_list) {
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// 4. Use the first such substring in textual order that matches the name of a non-abstract WAI-ARIA role.
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auto role = ARIARoles::from_string(role_name);
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if (!role.has_value())
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continue;
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if (ARIARoles::is_non_abstract_aria_role(*role))
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return *role;
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}
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// https://www.w3.org/TR/wai-aria-1.2/#document-handling_author-errors_roles
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// If the role attribute contains no tokens matching the name of a non-abstract WAI-ARIA role, the user agent MUST treat the element as if no role had been provided.
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// https://www.w3.org/TR/wai-aria-1.2/#implicit_semantics
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return default_role();
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}
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// https://www.w3.org/TR/wai-aria-1.2/#global_states
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bool ARIAMixin::has_global_aria_attribute() const
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{
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return !aria_atomic().is_null()
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|| !aria_busy().is_null()
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|| !aria_controls().is_null()
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|| !aria_current().is_null()
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|| !aria_described_by().is_null()
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|| !aria_details().is_null()
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|| !aria_disabled().is_null()
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|| !aria_drop_effect().is_null()
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|| !aria_error_message().is_null()
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|| !aria_flow_to().is_null()
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|| !aria_grabbed().is_null()
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|| !aria_has_popup().is_null()
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|| !aria_hidden().is_null()
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|| !aria_invalid().is_null()
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|| !aria_key_shortcuts().is_null()
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|| !aria_label().is_null()
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|| !aria_labelled_by().is_null()
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|| !aria_live().is_null()
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|| !aria_owns().is_null()
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|| !aria_relevant().is_null()
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|| !aria_role_description().is_null();
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}
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}
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