commit 68053ff36fe3bdc18525f8b70815fd1b455c080f
parent 0d01bdd7e041e925dff8a383c751df0e6434b919
Author: Eitan Isaacson <eitan@monotonous.org>
Date: Thu, 20 Nov 2025 03:53:14 +0000
Bug 1998242 - P5: Perform subtree name calculation in RemoteAccessible::Name. r=morgan
Also make nsTextEquivUtils::GetNameFromSubtree remote friendly.
Depends on D271312
Differential Revision: https://phabricator.services.mozilla.com/D271313
Diffstat:
8 files changed, 81 insertions(+), 28 deletions(-)
diff --git a/accessible/atk/AccessibleWrap.cpp b/accessible/atk/AccessibleWrap.cpp
@@ -964,6 +964,8 @@ void a11y::PlatformEvent(Accessible* aTarget, uint32_t aEventType) {
g_signal_emit_by_name(wrapper, "text-attributes-changed");
break;
case nsIAccessibleEvent::EVENT_NAME_CHANGE: {
+ // Don't want to passively activate the cache because a name changed.
+ CacheDomainActivationBlocker cacheBlocker;
nsAutoString newName;
aTarget->Name(newName);
MaybeFireNameChange(wrapper, newName);
diff --git a/accessible/base/CacheConstants.h b/accessible/base/CacheConstants.h
@@ -160,6 +160,8 @@ class CacheKey {
// CSS position; e.g. fixed.
static constexpr nsStaticAtom* CssPosition = nsGkAtoms::position;
// nsString, CacheDomain::NameAndDescription
+ static constexpr nsStaticAtom* CssAltContent = nsGkAtoms::content;
+ // nsString, CacheDomain::NameAndDescription
static constexpr nsStaticAtom* Description = nsGkAtoms::description;
// EDescriptionValueFlag, CacheDomain::NameAndDescription
// Returned by Accessible::Description.
@@ -268,6 +270,8 @@ class CacheKey {
// The textual value returned by Accessible::Value (as opposed to
// the numeric value returned by Accessible::CurValue).
static constexpr nsStaticAtom* TextValue = nsGkAtoms::aria_valuetext;
+ // nsString, CacheDomain::NameAndDescription
+ static constexpr nsStaticAtom* Tooltip = nsGkAtoms::tooltip;
// gfx::Matrix4x4, CacheDomain::TransformMatrix
static constexpr nsStaticAtom* TransformMatrix = nsGkAtoms::transform;
// int32_t, CacheDomain::Value
diff --git a/accessible/base/nsTextEquivUtils.cpp b/accessible/base/nsTextEquivUtils.cpp
@@ -57,8 +57,8 @@ bool nsTextEquivUtils::HasNameRule(const Accessible* aAccessible,
return (rule & aRule) == aRule;
}
-nsresult nsTextEquivUtils::GetNameFromSubtree(
- const LocalAccessible* aAccessible, nsAString& aName) {
+nsresult nsTextEquivUtils::GetNameFromSubtree(const Accessible* aAccessible,
+ nsAString& aName) {
aName.Truncate();
if (GetReferencedAccs().Contains(aAccessible)) {
@@ -71,24 +71,18 @@ nsresult nsTextEquivUtils::GetNameFromSubtree(
}
GetReferencedAccs().Insert(aAccessible);
- if (nsIContent* content = aAccessible->GetContent()) {
- AssociatedElementsIterator iter(aAccessible->Document(), content,
- nsGkAtoms::aria_actions);
- while (Accessible* actionTarget = iter.Next()) {
- // aria-action targets are excluded from name calculation, so consider any
- // of these targets as "referenced" for our purposes.
- GetReferencedAccs().Insert(actionTarget);
- }
+ Relation customActions(aAccessible->RelationByType(RelationType::ACTION));
+ while (Accessible* target = customActions.Next()) {
+ // aria-action targets are excluded from name calculation, so consider any
+ // of these targets as "referenced" for our purposes.
+ GetReferencedAccs().Insert(target);
}
if (HasNameRule(aAccessible, eNameFromSubtreeRule)) {
- // XXX: is it necessary to care the accessible is not a document?
- if (aAccessible->IsContent()) {
- nsAutoString name;
- AppendFromAccessibleChildren(aAccessible, &name);
- name.CompressWhitespace();
- if (!nsCoreUtils::IsWhitespaceString(name)) aName = name;
- }
+ nsAutoString name;
+ AppendFromAccessibleChildren(aAccessible, &name);
+ name.CompressWhitespace();
+ if (!nsCoreUtils::IsWhitespaceString(name)) aName = name;
}
// Once the text alternative computation is complete (i.e., once we've
@@ -280,6 +274,24 @@ nsresult nsTextEquivUtils::AppendFromAccessible(Accessible* aAccessible,
}
}
}
+ } else if (aAccessible->IsRemote()) {
+ if (aAccessible->IsText()) {
+ // Leafs should have their text appended with no spacing.
+ nsAutoString name;
+ aAccessible->Name(name);
+ aString->Append(name);
+ return NS_OK;
+ }
+ if (RefPtr<nsAtom>(aAccessible->DisplayStyle()) == nsGkAtoms::block ||
+ aAccessible->IsHTMLListItem() || aAccessible->IsTableRow() ||
+ aAccessible->IsTableCell()) {
+ // Similar to local case above, we need to add spaces around block level
+ // accessibles.
+ isHTMLBlock = true;
+ if (!aString->IsEmpty()) {
+ aString->Append(char16_t(' '));
+ }
+ }
}
bool isEmptyTextEquiv = true;
diff --git a/accessible/base/nsTextEquivUtils.h b/accessible/base/nsTextEquivUtils.h
@@ -67,7 +67,7 @@ class nsTextEquivUtils {
* @param aAccessible [in] the given accessible
* @param aName [out] accessible name
*/
- static nsresult GetNameFromSubtree(const LocalAccessible* aAccessible,
+ static nsresult GetNameFromSubtree(const Accessible* aAccessible,
nsAString& aName);
/**
diff --git a/accessible/generic/LocalAccessible.cpp b/accessible/generic/LocalAccessible.cpp
@@ -3392,7 +3392,7 @@ already_AddRefed<AccAttributes> LocalAccessible::BundleFieldsForCache(
// always their text. Text gets handled below.
if (aCacheDomain & CacheDomain::NameAndDescription && !IsText()) {
nsString name;
- int32_t nameFlag = Name(name);
+ int32_t nameFlag = DirectName(name);
if (nameFlag != eNameOK) {
fields->SetAttribute(CacheKey::NameValueFlag, nameFlag);
} else if (IsUpdatePush(CacheDomain::NameAndDescription)) {
@@ -3417,6 +3417,21 @@ already_AddRefed<AccAttributes> LocalAccessible::BundleFieldsForCache(
fields->SetAttribute(CacheKey::Name, DeleteEntry());
}
+ nsString tooltip;
+ if (Tooltip(tooltip)) {
+ fields->SetAttribute(CacheKey::Tooltip, std::move(tooltip));
+ } else if (IsUpdatePush(CacheDomain::NameAndDescription)) {
+ fields->SetAttribute(CacheKey::Tooltip, DeleteEntry());
+ }
+
+ nsString cssAltContent;
+ if (auto cssAlt = CssAltContent(mContent)) {
+ cssAlt.AppendToString(cssAltContent);
+ fields->SetAttribute(CacheKey::CssAltContent, std::move(cssAltContent));
+ } else if (IsUpdatePush(CacheDomain::NameAndDescription)) {
+ fields->SetAttribute(CacheKey::CssAltContent, DeleteEntry());
+ }
+
nsString description;
int32_t descFlag = Description(description);
if (!description.IsEmpty()) {
diff --git a/accessible/ipc/RemoteAccessible.cpp b/accessible/ipc/RemoteAccessible.cpp
@@ -231,26 +231,44 @@ ENameValueFlag RemoteAccessible::Name(nsString& aName) const {
return eNameOK;
}
- ENameValueFlag nameFlag = eNameOK;
if (mCachedFields) {
if (IsText()) {
mCachedFields->GetAttribute(CacheKey::Text, aName);
return eNameOK;
}
- auto cachedNameFlag =
- mCachedFields->GetAttribute<int32_t>(CacheKey::NameValueFlag);
- if (cachedNameFlag) {
- nameFlag = static_cast<ENameValueFlag>(*cachedNameFlag);
- }
+
if (mCachedFields->GetAttribute(CacheKey::Name, aName)) {
+ // Bug 1998255 - Once we tackle computing label calculation in the parent
+ // process, we can remove the cached name flag.
+ auto cachedNameFlag =
+ mCachedFields->GetAttribute<int32_t>(CacheKey::NameValueFlag);
+ ENameValueFlag nameFlag =
+ cachedNameFlag ? static_cast<ENameValueFlag>(*cachedNameFlag)
+ : eNameOK;
+
VERIFY_CACHE(CacheDomain::NameAndDescription);
return nameFlag;
}
+
+ nsTextEquivUtils::GetNameFromSubtree(this, aName);
+ if (!aName.IsEmpty()) {
+ return eNameFromSubtree;
+ }
+
+ if (mCachedFields->GetAttribute(CacheKey::Tooltip, aName)) {
+ VERIFY_CACHE(CacheDomain::NameAndDescription);
+ return eNameFromTooltip;
+ }
+
+ if (mCachedFields->GetAttribute(CacheKey::CssAltContent, aName)) {
+ VERIFY_CACHE(CacheDomain::NameAndDescription);
+ return eNameOK;
+ }
}
MOZ_ASSERT(aName.IsEmpty());
aName.SetIsVoid(true);
- return nameFlag;
+ return eNameOK;
}
EDescriptionValueFlag RemoteAccessible::Description(
diff --git a/accessible/mac/mozAccessible.mm b/accessible/mac/mozAccessible.mm
@@ -1130,6 +1130,8 @@ static bool ProvidesTitle(const Accessible* aAccessible, nsString& aName) {
mIsLiveRegion = false;
break;
case nsIAccessibleEvent::EVENT_NAME_CHANGE: {
+ // Don't want to passively activate the cache because a name changed.
+ CacheDomainActivationBlocker cacheBlocker;
nsAutoString nameNotUsed;
if (ProvidesTitle(mGeckoAccessible, nameNotUsed)) {
[self moxPostNotification:NSAccessibilityTitleChangedNotification];
diff --git a/accessible/tests/browser/caching_granularity/browser_name_and_description_domain.js b/accessible/tests/browser/caching_granularity/browser_name_and_description_domain.js
@@ -55,10 +55,10 @@ addAccessibleTask(
// CacheKey::NameValueFlag, CacheDomain::NameAndDescription
addAccessibleTask(
- `<h3 id="test"><p>test</p></h3>`,
+ `<h3 id="test" aria-label="test me"><p>test</p></h3>`,
async function (browser, docAcc) {
let acc = findAccessibleChildByID(docAcc, "test");
- verifyAttributeCachedNoRetry(acc, "explicit-name");
+ verifyAttributeCachedNoRetry(acc, "name");
},
{
topLevel: true,
