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/*
* Copyright (c) 2022, Jonah Shafran <jonahshafran@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/ARIA/ARIAMixin.h>
#include <LibWeb/ARIA/Roles.h>
#include <LibWeb/Infra/CharacterTypes.h>
namespace Web::ARIA {
// https://www.w3.org/TR/wai-aria-1.2/#introroles
Optional<Role> ARIAMixin::role_or_default() const
{
// 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.
auto role_string = role();
// 2. Separate the attribute value string for that attribute into a sequence of whitespace-free substrings by separating on whitespace.
auto role_list = role_string.split_view(Infra::is_ascii_whitespace);
// 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.
for (auto const& role_name : role_list) {
// 4. Use the first such substring in textual order that matches the name of a non-abstract WAI-ARIA role.
auto role = role_from_string(role_name);
if (!role.has_value())
continue;
if (is_non_abstract_role(*role))
return *role;
}
// https://www.w3.org/TR/wai-aria-1.2/#document-handling_author-errors_roles
// 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.
// https://www.w3.org/TR/wai-aria-1.2/#implicit_semantics
return default_role();
}
// https://www.w3.org/TR/wai-aria-1.2/#global_states
bool ARIAMixin::has_global_aria_attribute() const
{
return !aria_atomic().is_null()
|| !aria_busy().is_null()
|| !aria_controls().is_null()
|| !aria_current().is_null()
|| !aria_described_by().is_null()
|| !aria_details().is_null()
|| !aria_disabled().is_null()
|| !aria_drop_effect().is_null()
|| !aria_error_message().is_null()
|| !aria_flow_to().is_null()
|| !aria_grabbed().is_null()
|| !aria_has_popup().is_null()
|| !aria_hidden().is_null()
|| !aria_invalid().is_null()
|| !aria_key_shortcuts().is_null()
|| !aria_label().is_null()
|| !aria_labelled_by().is_null()
|| !aria_live().is_null()
|| !aria_owns().is_null()
|| !aria_relevant().is_null()
|| !aria_role_description().is_null();
}
}
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