/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "CacheConstants.h"
#include "nsAccessibilityService.h"
namespace mozilla::a11y {
// Get the set of cache domains required by the given cache domains, which will
// always be equal to or a superset of the given set of cache domains.
uint64_t GetCacheDomainSuperset(uint64_t aCacheDomains) {
uint64_t allNecessaryDomains = aCacheDomains;
if (aCacheDomains & CacheDomain::TextOffsetAttributes) {
allNecessaryDomains |= CacheDomain::Text;
}
if (aCacheDomains & CacheDomain::TextBounds) {
allNecessaryDomains |= CacheDomain::Text;
allNecessaryDomains |= CacheDomain::Bounds;
}
MOZ_ASSERT((allNecessaryDomains & aCacheDomains) == aCacheDomains,
"Return value is not a superset of the input.");
return allNecessaryDomains;
}
bool DomainsAreActive(uint64_t aRequiredCacheDomains) {
const uint64_t activeCacheDomains =
nsAccessibilityService::GetActiveCacheDomains();
const bool allRequiredDomainsAreActive =
(aRequiredCacheDomains & ~activeCacheDomains) ==
0;
return allRequiredDomainsAreActive;
}
}
// namespace mozilla::a11y