summaryrefslogtreecommitdiffstats
path: root/accessible/aom
diff options
context:
space:
mode:
Diffstat (limited to 'accessible/aom')
-rw-r--r--accessible/aom/AccessibleNode.cpp173
-rw-r--r--accessible/aom/AccessibleNode.h212
-rw-r--r--accessible/aom/moz.build44
3 files changed, 429 insertions, 0 deletions
diff --git a/accessible/aom/AccessibleNode.cpp b/accessible/aom/AccessibleNode.cpp
new file mode 100644
index 0000000000..43cfcf8a47
--- /dev/null
+++ b/accessible/aom/AccessibleNode.cpp
@@ -0,0 +1,173 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "AccessibleNode.h"
+#include "mozilla/dom/AccessibleNodeBinding.h"
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/dom/DOMStringList.h"
+#include "mozilla/StaticPrefs_accessibility.h"
+#include "nsContentUtils.h"
+#include "nsISimpleEnumerator.h"
+
+#include "AccAttributes.h"
+#include "LocalAccessible-inl.h"
+#include "nsAccessibilityService.h"
+#include "DocAccessible.h"
+
+#include "mozilla/dom/Document.h" // for inline nsINode::GetParentObject
+#include "mozilla/dom/ToJSValue.h"
+
+using namespace mozilla;
+using namespace mozilla::a11y;
+using namespace mozilla::dom;
+
+bool AccessibleNode::IsAOMEnabled(JSContext* aCx, JSObject* /*unused*/) {
+ return nsContentUtils::IsSystemCaller(aCx) ||
+ StaticPrefs::accessibility_AOM_enabled();
+}
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(AccessibleNode, mRelationProperties,
+ mIntl, mDOMNode, mStates)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AccessibleNode)
+ NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+ NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(AccessibleNode)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(AccessibleNode)
+
+AccessibleNode::AccessibleNode(nsINode* aNode)
+ : mDoubleProperties(3),
+ mIntProperties(3),
+ mUIntProperties(6),
+ mBooleanProperties(0),
+ mRelationProperties(3),
+ mStringProperties(16),
+ mDOMNode(aNode) {
+ nsAccessibilityService* accService = GetOrCreateAccService();
+ if (!accService) {
+ return;
+ }
+
+ DocAccessible* doc = accService->GetDocAccessible(mDOMNode->OwnerDoc());
+ if (doc) {
+ mIntl = doc->GetAccessible(mDOMNode);
+ }
+}
+
+AccessibleNode::~AccessibleNode() {}
+
+/* virtual */
+JSObject* AccessibleNode::WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) {
+ return AccessibleNode_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+/* virtual */
+ParentObject AccessibleNode::GetParentObject() const {
+ return mDOMNode->GetParentObject();
+}
+
+void AccessibleNode::GetComputedRole(nsAString& aRole) {
+ if (mIntl) {
+ nsAccessibilityService* accService = GetOrCreateAccService();
+ if (accService) {
+ accService->GetStringRole(mIntl->Role(), aRole);
+ return;
+ }
+ }
+
+ aRole.AssignLiteral("unknown");
+}
+
+void AccessibleNode::GetStates(nsTArray<nsString>& aStates) {
+ nsAccessibilityService* accService = GetOrCreateAccService();
+ if (!mIntl || !accService) {
+ aStates.AppendElement(u"defunct"_ns);
+ return;
+ }
+
+ if (mStates) {
+ aStates = mStates->StringArray().Clone();
+ return;
+ }
+
+ mStates = accService->GetStringStates(mIntl->State());
+ aStates = mStates->StringArray().Clone();
+}
+
+void AccessibleNode::GetAttributes(nsTArray<nsString>& aAttributes) {
+ if (!mIntl) {
+ return;
+ }
+
+ RefPtr<AccAttributes> attrs = mIntl->Attributes();
+
+ for (const auto& iter : *attrs) {
+ aAttributes.AppendElement(nsAtomString(iter.Name()));
+ }
+}
+
+bool AccessibleNode::Is(const Sequence<nsString>& aFlavors) {
+ nsAccessibilityService* accService = GetOrCreateAccService();
+ if (!mIntl || !accService) {
+ for (const auto& flavor : aFlavors) {
+ if (!flavor.EqualsLiteral("unknown") &&
+ !flavor.EqualsLiteral("defunct")) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ nsAutoString role;
+ accService->GetStringRole(mIntl->Role(), role);
+
+ if (!mStates) {
+ mStates = accService->GetStringStates(mIntl->State());
+ }
+
+ for (const auto& flavor : aFlavors) {
+ if (!flavor.Equals(role) && !mStates->Contains(flavor)) {
+ return false;
+ }
+ }
+ return true;
+}
+
+bool AccessibleNode::Has(const Sequence<nsString>& aAttributes) {
+ if (!mIntl) {
+ return false;
+ }
+ RefPtr<AccAttributes> attrs = mIntl->Attributes();
+ for (const auto& attr : aAttributes) {
+ RefPtr<nsAtom> attrAtom = NS_Atomize(attr);
+ if (!attrs->HasAttribute(attrAtom)) {
+ return false;
+ }
+ }
+ return true;
+}
+
+void AccessibleNode::Get(JSContext* aCX, const nsAString& aAttribute,
+ JS::MutableHandle<JS::Value> aValue,
+ ErrorResult& aRv) {
+ if (!mIntl) {
+ aRv.ThrowInvalidStateError("No attributes available");
+ return;
+ }
+
+ RefPtr<nsAtom> attrAtom = NS_Atomize(aAttribute);
+ RefPtr<AccAttributes> attrs = mIntl->Attributes();
+ nsAutoString valueStr;
+ attrs->GetAttribute(attrAtom, valueStr);
+ if (!ToJSValue(aCX, valueStr, aValue)) {
+ aRv.NoteJSContextException(aCX);
+ return;
+ }
+}
+
+nsINode* AccessibleNode::GetDOMNode() { return mDOMNode; }
diff --git a/accessible/aom/AccessibleNode.h b/accessible/aom/AccessibleNode.h
new file mode 100644
index 0000000000..e9b328b13d
--- /dev/null
+++ b/accessible/aom/AccessibleNode.h
@@ -0,0 +1,212 @@
+/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
+/* vim: set ts=2 et sw=2 tw=40: */
+/* 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/. */
+
+#ifndef A11Y_AOM_ACCESSIBLENODE_H
+#define A11Y_AOM_ACCESSIBLENODE_H
+
+#include "nsTHashMap.h"
+#include "nsRefPtrHashtable.h"
+#include "nsWrapperCache.h"
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/dom/DOMString.h"
+#include "mozilla/dom/Nullable.h"
+
+class nsINode;
+
+namespace mozilla {
+
+class ErrorResult;
+
+namespace a11y {
+class LocalAccessible;
+}
+
+namespace dom {
+
+class DOMStringList;
+struct ParentObject;
+
+#define ANODE_ENUM(name) e##name,
+
+#define ANODE_FUNC(typeName, type, name) \
+ dom::Nullable<type> Get##name() { \
+ return GetProperty(AOM##typeName##Property::e##name); \
+ } \
+ \
+ void Set##name(const dom::Nullable<type>& a##name) { \
+ SetProperty(AOM##typeName##Property::e##name, a##name); \
+ }
+
+#define ANODE_STRING_FUNC(name) \
+ void Get##name(nsAString& a##name) { \
+ return GetProperty(AOMStringProperty::e##name, a##name); \
+ } \
+ \
+ void Set##name(const nsAString& a##name) { \
+ SetProperty(AOMStringProperty::e##name, a##name); \
+ }
+
+#define ANODE_RELATION_FUNC(name) \
+ already_AddRefed<AccessibleNode> Get##name() { \
+ return GetProperty(AOMRelationProperty::e##name); \
+ } \
+ \
+ void Set##name(AccessibleNode* a##name) { \
+ SetProperty(AOMRelationProperty::e##name, a##name); \
+ }
+
+#define ANODE_PROPS(typeName, type, ...) \
+ enum class AOM##typeName##Property{ \
+ MOZ_FOR_EACH(ANODE_ENUM, (), (__VA_ARGS__))}; \
+ MOZ_FOR_EACH(ANODE_FUNC, (typeName, type, ), (__VA_ARGS__))
+
+#define ANODE_STRING_PROPS(...) \
+ enum class AOMStringProperty { \
+ MOZ_FOR_EACH(ANODE_ENUM, (), (__VA_ARGS__)) \
+ }; \
+ MOZ_FOR_EACH(ANODE_STRING_FUNC, (), (__VA_ARGS__))
+
+#define ANODE_RELATION_PROPS(...) \
+ enum class AOMRelationProperty { \
+ MOZ_FOR_EACH(ANODE_ENUM, (), (__VA_ARGS__)) \
+ }; \
+ MOZ_FOR_EACH(ANODE_RELATION_FUNC, (), (__VA_ARGS__))
+
+#define ANODE_ACCESSOR_MUTATOR(typeName, type, defVal) \
+ nsTHashMap<nsUint32HashKey, type> m##typeName##Properties; \
+ \
+ dom::Nullable<type> GetProperty(AOM##typeName##Property aProperty) { \
+ type value = defVal; \
+ if (m##typeName##Properties.Get(static_cast<int>(aProperty), &value)) { \
+ return dom::Nullable<type>(value); \
+ } \
+ return dom::Nullable<type>(); \
+ } \
+ \
+ void SetProperty(AOM##typeName##Property aProperty, \
+ const dom::Nullable<type>& aValue) { \
+ if (aValue.IsNull()) { \
+ m##typeName##Properties.Remove(static_cast<int>(aProperty)); \
+ } else { \
+ m##typeName##Properties.InsertOrUpdate(static_cast<int>(aProperty), \
+ aValue.Value()); \
+ } \
+ }
+
+class AccessibleNode : public nsISupports, public nsWrapperCache {
+ public:
+ explicit AccessibleNode(nsINode* aNode);
+
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS;
+ NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(AccessibleNode);
+
+ JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) final;
+ dom::ParentObject GetParentObject() const;
+
+ void GetComputedRole(nsAString& aRole);
+ void GetStates(nsTArray<nsString>& aStates);
+ void GetAttributes(nsTArray<nsString>& aAttributes);
+ nsINode* GetDOMNode();
+
+ bool Is(const Sequence<nsString>& aFlavors);
+ bool Has(const Sequence<nsString>& aAttributes);
+ void Get(JSContext* cx, const nsAString& aAttribute,
+ JS::MutableHandle<JS::Value> aValue, ErrorResult& aRv);
+
+ static bool IsAOMEnabled(JSContext*, JSObject*);
+
+ ANODE_STRING_PROPS(Autocomplete, Checked, Current, HasPopUp, Invalid,
+ KeyShortcuts, Label, Live, Orientation, Placeholder,
+ Pressed, Relevant, Role, RoleDescription, Sort, ValueText)
+
+ ANODE_PROPS(Boolean, bool, Atomic, Busy, Disabled, Expanded, Hidden, Modal,
+ Multiline, Multiselectable, ReadOnly, Required, Selected)
+
+ ANODE_PROPS(UInt, uint32_t, ColIndex, ColSpan, Level, PosInSet, RowIndex,
+ RowSpan)
+
+ ANODE_PROPS(Int, int32_t, ColCount, RowCount, SetSize)
+
+ ANODE_PROPS(Double, double, ValueMax, ValueMin, ValueNow)
+
+ ANODE_RELATION_PROPS(ActiveDescendant, Details, ErrorMessage)
+
+ protected:
+ AccessibleNode(const AccessibleNode& aCopy) = delete;
+ AccessibleNode& operator=(const AccessibleNode& aCopy) = delete;
+ virtual ~AccessibleNode();
+
+ void GetProperty(AOMStringProperty aProperty, nsAString& aRetval) {
+ nsString data;
+ if (!mStringProperties.Get(static_cast<int>(aProperty), &data)) {
+ SetDOMStringToNull(data);
+ }
+ aRetval = data;
+ }
+
+ void SetProperty(AOMStringProperty aProperty, const nsAString& aValue) {
+ if (DOMStringIsNull(aValue)) {
+ mStringProperties.Remove(static_cast<int>(aProperty));
+ } else {
+ nsString value(aValue);
+ mStringProperties.InsertOrUpdate(static_cast<int>(aProperty), value);
+ }
+ }
+
+ dom::Nullable<bool> GetProperty(AOMBooleanProperty aProperty) {
+ int num = static_cast<int>(aProperty);
+ if (mBooleanProperties & (1U << (2 * num))) {
+ bool data = static_cast<bool>(mBooleanProperties & (1U << (2 * num + 1)));
+ return dom::Nullable<bool>(data);
+ }
+ return dom::Nullable<bool>();
+ }
+
+ void SetProperty(AOMBooleanProperty aProperty,
+ const dom::Nullable<bool>& aValue) {
+ int num = static_cast<int>(aProperty);
+ if (aValue.IsNull()) {
+ mBooleanProperties &= ~(1U << (2 * num));
+ } else {
+ mBooleanProperties |= (1U << (2 * num));
+ mBooleanProperties =
+ (aValue.Value() ? mBooleanProperties | (1U << (2 * num + 1))
+ : mBooleanProperties & ~(1U << (2 * num + 1)));
+ }
+ }
+
+ ANODE_ACCESSOR_MUTATOR(Double, double, 0.0)
+ ANODE_ACCESSOR_MUTATOR(Int, int32_t, 0)
+ ANODE_ACCESSOR_MUTATOR(UInt, uint32_t, 0)
+
+ already_AddRefed<AccessibleNode> GetProperty(AOMRelationProperty aProperty) {
+ return mRelationProperties.Get(static_cast<int>(aProperty));
+ }
+
+ void SetProperty(AOMRelationProperty aProperty, AccessibleNode* aValue) {
+ if (!aValue) {
+ mRelationProperties.Remove(static_cast<int>(aProperty));
+ } else {
+ mRelationProperties.InsertOrUpdate(static_cast<int>(aProperty),
+ RefPtr{aValue});
+ }
+ }
+
+ // The 2k'th bit indicates whether the k'th boolean property is used(1) or
+ // not(0) and 2k+1'th bit contains the property's value(1:true, 0:false)
+ uint32_t mBooleanProperties;
+ nsRefPtrHashtable<nsUint32HashKey, AccessibleNode> mRelationProperties;
+ nsTHashMap<nsUint32HashKey, nsString> mStringProperties;
+
+ RefPtr<a11y::LocalAccessible> mIntl;
+ RefPtr<nsINode> mDOMNode;
+ RefPtr<dom::DOMStringList> mStates;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // A11Y_JSAPI_ACCESSIBLENODE
diff --git a/accessible/aom/moz.build b/accessible/aom/moz.build
new file mode 100644
index 0000000000..88b941435e
--- /dev/null
+++ b/accessible/aom/moz.build
@@ -0,0 +1,44 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+EXPORTS.mozilla.dom += [
+ "AccessibleNode.h",
+]
+
+UNIFIED_SOURCES += [
+ "AccessibleNode.cpp",
+]
+
+LOCAL_INCLUDES += [
+ "/accessible/base",
+ "/accessible/generic",
+]
+
+if CONFIG["MOZ_WIDGET_TOOLKIT"] == "gtk":
+ LOCAL_INCLUDES += [
+ "/accessible/atk",
+ ]
+elif CONFIG["MOZ_WIDGET_TOOLKIT"] == "windows":
+ LOCAL_INCLUDES += [
+ "/accessible/windows/ia2",
+ "/accessible/windows/msaa",
+ ]
+elif CONFIG["MOZ_WIDGET_TOOLKIT"] == "cocoa":
+ LOCAL_INCLUDES += [
+ "/accessible/mac",
+ ]
+elif CONFIG["MOZ_WIDGET_TOOLKIT"] == "android":
+ LOCAL_INCLUDES += [
+ "/accessible/android",
+ ]
+else:
+ LOCAL_INCLUDES += [
+ "/accessible/other",
+ ]
+
+include("/ipc/chromium/chromium-config.mozbuild")
+
+FINAL_LIBRARY = "xul"
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-18 03:39:12 +0000