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ax_node_data.cc
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ax_node_data.cc
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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/accessibility/ax_node_data.h"
#include <stddef.h>
#include <algorithm>
#include <set>
#include "base/no_destructor.h"
#include "base/stl_util.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "ui/accessibility/ax_enum_util.h"
#include "ui/accessibility/ax_enums.mojom.h"
#include "ui/accessibility/ax_role_properties.h"
#include "ui/accessibility/ax_text_utils.h"
#include "ui/gfx/transform.h"
namespace ui {
namespace {
bool IsFlagSet(uint32_t bitfield, uint32_t flag) {
return (bitfield & (1 << flag)) != 0;
}
uint32_t ModifyFlag(uint32_t bitfield, uint32_t flag, bool set) {
return set ? (bitfield |= (1 << flag)) : (bitfield &= ~(1 << flag));
}
std::string StateBitfieldToString(uint32_t state_enum) {
std::string str;
for (uint32_t i = static_cast<uint32_t>(ax::mojom::State::kNone) + 1;
i <= static_cast<uint32_t>(ax::mojom::State::kMaxValue); ++i) {
if (IsFlagSet(state_enum, i))
str += " " +
base::ToUpperASCII(ui::ToString(static_cast<ax::mojom::State>(i)));
}
return str;
}
std::string ActionsBitfieldToString(uint32_t actions) {
std::string str;
for (uint32_t i = static_cast<uint32_t>(ax::mojom::Action::kNone) + 1;
i <= static_cast<uint32_t>(ax::mojom::Action::kMaxValue); ++i) {
if (IsFlagSet(actions, i)) {
str += ui::ToString(static_cast<ax::mojom::Action>(i));
actions = ModifyFlag(actions, i, false);
str += actions ? "," : "";
}
}
return str;
}
std::string IntVectorToString(const std::vector<int>& items) {
std::string str;
for (size_t i = 0; i < items.size(); ++i) {
if (i > 0)
str += ",";
str += base::NumberToString(items[i]);
}
return str;
}
// Predicate that returns true if the first value of a pair is |first|.
template<typename FirstType, typename SecondType>
struct FirstIs {
FirstIs(FirstType first)
: first_(first) {}
bool operator()(std::pair<FirstType, SecondType> const& p) {
return p.first == first_;
}
FirstType first_;
};
// Helper function that finds a key in a vector of pairs by matching on the
// first value, and returns an iterator.
template<typename FirstType, typename SecondType>
typename std::vector<std::pair<FirstType, SecondType>>::const_iterator
FindInVectorOfPairs(
FirstType first,
const std::vector<std::pair<FirstType, SecondType>>& vector) {
return std::find_if(vector.begin(),
vector.end(),
FirstIs<FirstType, SecondType>(first));
}
} // namespace
// Return true if |attr| is a node ID that would need to be mapped when
// renumbering the ids in a combined tree.
bool IsNodeIdIntAttribute(ax::mojom::IntAttribute attr) {
switch (attr) {
case ax::mojom::IntAttribute::kActivedescendantId:
case ax::mojom::IntAttribute::kErrormessageId:
case ax::mojom::IntAttribute::kInPageLinkTargetId:
case ax::mojom::IntAttribute::kMemberOfId:
case ax::mojom::IntAttribute::kNextOnLineId:
case ax::mojom::IntAttribute::kPopupForId:
case ax::mojom::IntAttribute::kPreviousOnLineId:
case ax::mojom::IntAttribute::kTableHeaderId:
case ax::mojom::IntAttribute::kTableColumnHeaderId:
case ax::mojom::IntAttribute::kTableRowHeaderId:
case ax::mojom::IntAttribute::kNextFocusId:
case ax::mojom::IntAttribute::kPreviousFocusId:
return true;
// Note: all of the attributes are included here explicitly,
// rather than using "default:", so that it's a compiler error to
// add a new attribute without explicitly considering whether it's
// a node id attribute or not.
case ax::mojom::IntAttribute::kNone:
case ax::mojom::IntAttribute::kDefaultActionVerb:
case ax::mojom::IntAttribute::kScrollX:
case ax::mojom::IntAttribute::kScrollXMin:
case ax::mojom::IntAttribute::kScrollXMax:
case ax::mojom::IntAttribute::kScrollY:
case ax::mojom::IntAttribute::kScrollYMin:
case ax::mojom::IntAttribute::kScrollYMax:
case ax::mojom::IntAttribute::kTextSelStart:
case ax::mojom::IntAttribute::kTextSelEnd:
case ax::mojom::IntAttribute::kTableRowCount:
case ax::mojom::IntAttribute::kTableColumnCount:
case ax::mojom::IntAttribute::kTableRowIndex:
case ax::mojom::IntAttribute::kTableColumnIndex:
case ax::mojom::IntAttribute::kTableCellColumnIndex:
case ax::mojom::IntAttribute::kTableCellColumnSpan:
case ax::mojom::IntAttribute::kTableCellRowIndex:
case ax::mojom::IntAttribute::kTableCellRowSpan:
case ax::mojom::IntAttribute::kSortDirection:
case ax::mojom::IntAttribute::kHierarchicalLevel:
case ax::mojom::IntAttribute::kNameFrom:
case ax::mojom::IntAttribute::kDescriptionFrom:
case ax::mojom::IntAttribute::kSetSize:
case ax::mojom::IntAttribute::kPosInSet:
case ax::mojom::IntAttribute::kColorValue:
case ax::mojom::IntAttribute::kAriaCurrentState:
case ax::mojom::IntAttribute::kHasPopup:
case ax::mojom::IntAttribute::kBackgroundColor:
case ax::mojom::IntAttribute::kColor:
case ax::mojom::IntAttribute::kInvalidState:
case ax::mojom::IntAttribute::kCheckedState:
case ax::mojom::IntAttribute::kRestriction:
case ax::mojom::IntAttribute::kListStyle:
case ax::mojom::IntAttribute::kTextDirection:
case ax::mojom::IntAttribute::kTextPosition:
case ax::mojom::IntAttribute::kTextStyle:
case ax::mojom::IntAttribute::kTextOverlineStyle:
case ax::mojom::IntAttribute::kTextStrikethroughStyle:
case ax::mojom::IntAttribute::kTextUnderlineStyle:
case ax::mojom::IntAttribute::kAriaColumnCount:
case ax::mojom::IntAttribute::kAriaCellColumnIndex:
case ax::mojom::IntAttribute::kAriaCellColumnSpan:
case ax::mojom::IntAttribute::kAriaRowCount:
case ax::mojom::IntAttribute::kAriaCellRowIndex:
case ax::mojom::IntAttribute::kAriaCellRowSpan:
case ax::mojom::IntAttribute::kImageAnnotationStatus:
case ax::mojom::IntAttribute::kDropeffect:
case ax::mojom::IntAttribute::kDOMNodeId:
return false;
}
NOTREACHED();
return false;
}
// Return true if |attr| contains a vector of node ids that would need
// to be mapped when renumbering the ids in a combined tree.
bool IsNodeIdIntListAttribute(ax::mojom::IntListAttribute attr) {
switch (attr) {
case ax::mojom::IntListAttribute::kControlsIds:
case ax::mojom::IntListAttribute::kDetailsIds:
case ax::mojom::IntListAttribute::kDescribedbyIds:
case ax::mojom::IntListAttribute::kFlowtoIds:
case ax::mojom::IntListAttribute::kIndirectChildIds:
case ax::mojom::IntListAttribute::kLabelledbyIds:
case ax::mojom::IntListAttribute::kRadioGroupIds:
return true;
// Note: all of the attributes are included here explicitly,
// rather than using "default:", so that it's a compiler error to
// add a new attribute without explicitly considering whether it's
// a node id attribute or not.
case ax::mojom::IntListAttribute::kNone:
case ax::mojom::IntListAttribute::kMarkerTypes:
case ax::mojom::IntListAttribute::kMarkerStarts:
case ax::mojom::IntListAttribute::kMarkerEnds:
case ax::mojom::IntListAttribute::kCharacterOffsets:
case ax::mojom::IntListAttribute::kCachedLineStarts:
case ax::mojom::IntListAttribute::kWordStarts:
case ax::mojom::IntListAttribute::kWordEnds:
case ax::mojom::IntListAttribute::kCustomActionIds:
return false;
}
NOTREACHED();
return false;
}
AXNodeData::AXNodeData()
: role(ax::mojom::Role::kUnknown),
state(static_cast<uint32_t>(ax::mojom::State::kNone)),
actions(static_cast<uint32_t>(ax::mojom::Action::kNone)) {}
AXNodeData::~AXNodeData() = default;
AXNodeData::AXNodeData(const AXNodeData& other) {
id = other.id;
role = other.role;
state = other.state;
actions = other.actions;
string_attributes = other.string_attributes;
int_attributes = other.int_attributes;
float_attributes = other.float_attributes;
bool_attributes = other.bool_attributes;
intlist_attributes = other.intlist_attributes;
stringlist_attributes = other.stringlist_attributes;
html_attributes = other.html_attributes;
child_ids = other.child_ids;
relative_bounds = other.relative_bounds;
}
AXNodeData::AXNodeData(AXNodeData&& other) {
id = other.id;
role = other.role;
state = other.state;
actions = other.actions;
string_attributes.swap(other.string_attributes);
int_attributes.swap(other.int_attributes);
float_attributes.swap(other.float_attributes);
bool_attributes.swap(other.bool_attributes);
intlist_attributes.swap(other.intlist_attributes);
stringlist_attributes.swap(other.stringlist_attributes);
html_attributes.swap(other.html_attributes);
child_ids.swap(other.child_ids);
relative_bounds = other.relative_bounds;
}
AXNodeData& AXNodeData::operator=(AXNodeData other) {
id = other.id;
role = other.role;
state = other.state;
actions = other.actions;
string_attributes = other.string_attributes;
int_attributes = other.int_attributes;
float_attributes = other.float_attributes;
bool_attributes = other.bool_attributes;
intlist_attributes = other.intlist_attributes;
stringlist_attributes = other.stringlist_attributes;
html_attributes = other.html_attributes;
child_ids = other.child_ids;
relative_bounds = other.relative_bounds;
return *this;
}
bool AXNodeData::HasBoolAttribute(ax::mojom::BoolAttribute attribute) const {
auto iter = FindInVectorOfPairs(attribute, bool_attributes);
return iter != bool_attributes.end();
}
bool AXNodeData::GetBoolAttribute(ax::mojom::BoolAttribute attribute) const {
bool result;
if (GetBoolAttribute(attribute, &result))
return result;
return false;
}
bool AXNodeData::GetBoolAttribute(ax::mojom::BoolAttribute attribute,
bool* value) const {
auto iter = FindInVectorOfPairs(attribute, bool_attributes);
if (iter != bool_attributes.end()) {
*value = iter->second;
return true;
}
return false;
}
bool AXNodeData::HasFloatAttribute(ax::mojom::FloatAttribute attribute) const {
auto iter = FindInVectorOfPairs(attribute, float_attributes);
return iter != float_attributes.end();
}
float AXNodeData::GetFloatAttribute(ax::mojom::FloatAttribute attribute) const {
float result;
if (GetFloatAttribute(attribute, &result))
return result;
return 0.0;
}
bool AXNodeData::GetFloatAttribute(ax::mojom::FloatAttribute attribute,
float* value) const {
auto iter = FindInVectorOfPairs(attribute, float_attributes);
if (iter != float_attributes.end()) {
*value = iter->second;
return true;
}
return false;
}
bool AXNodeData::HasIntAttribute(ax::mojom::IntAttribute attribute) const {
auto iter = FindInVectorOfPairs(attribute, int_attributes);
return iter != int_attributes.end();
}
int AXNodeData::GetIntAttribute(ax::mojom::IntAttribute attribute) const {
int result;
if (GetIntAttribute(attribute, &result))
return result;
return 0;
}
bool AXNodeData::GetIntAttribute(ax::mojom::IntAttribute attribute,
int* value) const {
auto iter = FindInVectorOfPairs(attribute, int_attributes);
if (iter != int_attributes.end()) {
*value = int{iter->second};
return true;
}
return false;
}
bool AXNodeData::HasStringAttribute(
ax::mojom::StringAttribute attribute) const {
auto iter = FindInVectorOfPairs(attribute, string_attributes);
return iter != string_attributes.end();
}
const std::string& AXNodeData::GetStringAttribute(
ax::mojom::StringAttribute attribute) const {
auto iter = FindInVectorOfPairs(attribute, string_attributes);
return iter != string_attributes.end() ? iter->second : base::EmptyString();
}
bool AXNodeData::GetStringAttribute(ax::mojom::StringAttribute attribute,
std::string* value) const {
auto iter = FindInVectorOfPairs(attribute, string_attributes);
if (iter != string_attributes.end()) {
*value = iter->second;
return true;
}
return false;
}
base::string16 AXNodeData::GetString16Attribute(
ax::mojom::StringAttribute attribute) const {
std::string value_utf8;
if (!GetStringAttribute(attribute, &value_utf8))
return base::string16();
return base::UTF8ToUTF16(value_utf8);
}
bool AXNodeData::GetString16Attribute(ax::mojom::StringAttribute attribute,
base::string16* value) const {
std::string value_utf8;
if (!GetStringAttribute(attribute, &value_utf8))
return false;
*value = base::UTF8ToUTF16(value_utf8);
return true;
}
bool AXNodeData::HasIntListAttribute(
ax::mojom::IntListAttribute attribute) const {
auto iter = FindInVectorOfPairs(attribute, intlist_attributes);
return iter != intlist_attributes.end();
}
const std::vector<int32_t>& AXNodeData::GetIntListAttribute(
ax::mojom::IntListAttribute attribute) const {
static const base::NoDestructor<std::vector<int32_t>> empty_vector;
auto iter = FindInVectorOfPairs(attribute, intlist_attributes);
if (iter != intlist_attributes.end())
return iter->second;
return *empty_vector;
}
bool AXNodeData::GetIntListAttribute(ax::mojom::IntListAttribute attribute,
std::vector<int32_t>* value) const {
auto iter = FindInVectorOfPairs(attribute, intlist_attributes);
if (iter != intlist_attributes.end()) {
*value = iter->second;
return true;
}
return false;
}
bool AXNodeData::HasStringListAttribute(
ax::mojom::StringListAttribute attribute) const {
auto iter = FindInVectorOfPairs(attribute, stringlist_attributes);
return iter != stringlist_attributes.end();
}
const std::vector<std::string>& AXNodeData::GetStringListAttribute(
ax::mojom::StringListAttribute attribute) const {
static const base::NoDestructor<std::vector<std::string>> empty_vector;
auto iter = FindInVectorOfPairs(attribute, stringlist_attributes);
if (iter != stringlist_attributes.end())
return iter->second;
return *empty_vector;
}
bool AXNodeData::GetStringListAttribute(
ax::mojom::StringListAttribute attribute,
std::vector<std::string>* value) const {
auto iter = FindInVectorOfPairs(attribute, stringlist_attributes);
if (iter != stringlist_attributes.end()) {
*value = iter->second;
return true;
}
return false;
}
bool AXNodeData::GetHtmlAttribute(
const char* html_attr, std::string* value) const {
for (const std::pair<std::string, std::string>& html_attribute :
html_attributes) {
const std::string& attr = html_attribute.first;
if (base::LowerCaseEqualsASCII(attr, html_attr)) {
*value = html_attribute.second;
return true;
}
}
return false;
}
bool AXNodeData::GetHtmlAttribute(
const char* html_attr, base::string16* value) const {
std::string value_utf8;
if (!GetHtmlAttribute(html_attr, &value_utf8))
return false;
*value = base::UTF8ToUTF16(value_utf8);
return true;
}
void AXNodeData::AddStringAttribute(ax::mojom::StringAttribute attribute,
const std::string& value) {
DCHECK_NE(attribute, ax::mojom::StringAttribute::kNone);
if (HasStringAttribute(attribute))
RemoveStringAttribute(attribute);
string_attributes.push_back(std::make_pair(attribute, value));
}
void AXNodeData::AddIntAttribute(ax::mojom::IntAttribute attribute, int value) {
DCHECK_NE(attribute, ax::mojom::IntAttribute::kNone);
if (HasIntAttribute(attribute))
RemoveIntAttribute(attribute);
int_attributes.push_back(std::make_pair(attribute, value));
}
void AXNodeData::AddFloatAttribute(ax::mojom::FloatAttribute attribute,
float value) {
DCHECK_NE(attribute, ax::mojom::FloatAttribute::kNone);
if (HasFloatAttribute(attribute))
RemoveFloatAttribute(attribute);
float_attributes.push_back(std::make_pair(attribute, value));
}
void AXNodeData::AddBoolAttribute(ax::mojom::BoolAttribute attribute,
bool value) {
DCHECK_NE(attribute, ax::mojom::BoolAttribute::kNone);
if (HasBoolAttribute(attribute))
RemoveBoolAttribute(attribute);
bool_attributes.push_back(std::make_pair(attribute, value));
}
void AXNodeData::AddIntListAttribute(ax::mojom::IntListAttribute attribute,
const std::vector<int32_t>& value) {
DCHECK_NE(attribute, ax::mojom::IntListAttribute::kNone);
if (HasIntListAttribute(attribute))
RemoveIntListAttribute(attribute);
intlist_attributes.push_back(std::make_pair(attribute, value));
}
void AXNodeData::AddStringListAttribute(
ax::mojom::StringListAttribute attribute,
const std::vector<std::string>& value) {
DCHECK_NE(attribute, ax::mojom::StringListAttribute::kNone);
if (HasStringListAttribute(attribute))
RemoveStringListAttribute(attribute);
stringlist_attributes.push_back(std::make_pair(attribute, value));
}
void AXNodeData::RemoveStringAttribute(ax::mojom::StringAttribute attribute) {
DCHECK_NE(attribute, ax::mojom::StringAttribute::kNone);
base::EraseIf(string_attributes, [attribute](const auto& string_attribute) {
return string_attribute.first == attribute;
});
}
void AXNodeData::RemoveIntAttribute(ax::mojom::IntAttribute attribute) {
DCHECK_NE(attribute, ax::mojom::IntAttribute::kNone);
base::EraseIf(int_attributes, [attribute](const auto& int_attribute) {
return int_attribute.first == attribute;
});
}
void AXNodeData::RemoveFloatAttribute(ax::mojom::FloatAttribute attribute) {
DCHECK_NE(attribute, ax::mojom::FloatAttribute::kNone);
base::EraseIf(float_attributes, [attribute](const auto& float_attribute) {
return float_attribute.first == attribute;
});
}
void AXNodeData::RemoveBoolAttribute(ax::mojom::BoolAttribute attribute) {
DCHECK_NE(attribute, ax::mojom::BoolAttribute::kNone);
base::EraseIf(bool_attributes, [attribute](const auto& bool_attribute) {
return bool_attribute.first == attribute;
});
}
void AXNodeData::RemoveIntListAttribute(ax::mojom::IntListAttribute attribute) {
DCHECK_NE(attribute, ax::mojom::IntListAttribute::kNone);
base::EraseIf(intlist_attributes, [attribute](const auto& intlist_attribute) {
return intlist_attribute.first == attribute;
});
}
void AXNodeData::RemoveStringListAttribute(
ax::mojom::StringListAttribute attribute) {
DCHECK_NE(attribute, ax::mojom::StringListAttribute::kNone);
base::EraseIf(stringlist_attributes,
[attribute](const auto& stringlist_attribute) {
return stringlist_attribute.first == attribute;
});
}
AXNodeTextStyles AXNodeData::GetTextStyles() const {
AXNodeTextStyles style_attributes;
GetIntAttribute(ax::mojom::IntAttribute::kBackgroundColor,
&style_attributes.background_color);
GetIntAttribute(ax::mojom::IntAttribute::kColor, &style_attributes.color);
GetIntAttribute(ax::mojom::IntAttribute::kInvalidState,
&style_attributes.invalid_state);
GetIntAttribute(ax::mojom::IntAttribute::kTextOverlineStyle,
&style_attributes.overline_style);
GetIntAttribute(ax::mojom::IntAttribute::kTextDirection,
&style_attributes.text_direction);
GetIntAttribute(ax::mojom::IntAttribute::kTextPosition,
&style_attributes.text_position);
GetIntAttribute(ax::mojom::IntAttribute::kTextStrikethroughStyle,
&style_attributes.strikethrough_style);
GetIntAttribute(ax::mojom::IntAttribute::kTextStyle,
&style_attributes.text_style);
GetIntAttribute(ax::mojom::IntAttribute::kTextUnderlineStyle,
&style_attributes.underline_style);
GetFloatAttribute(ax::mojom::FloatAttribute::kFontSize,
&style_attributes.font_size);
GetFloatAttribute(ax::mojom::FloatAttribute::kFontWeight,
&style_attributes.font_weight);
GetStringAttribute(ax::mojom::StringAttribute::kFontFamily,
&style_attributes.font_family);
return style_attributes;
}
void AXNodeData::SetName(const std::string& name) {
auto iter = std::find_if(string_attributes.begin(), string_attributes.end(),
[](const auto& string_attribute) {
return string_attribute.first ==
ax::mojom::StringAttribute::kName;
});
if (iter == string_attributes.end()) {
string_attributes.push_back(
std::make_pair(ax::mojom::StringAttribute::kName, name));
} else {
iter->second = name;
}
}
void AXNodeData::SetName(const base::string16& name) {
SetName(base::UTF16ToUTF8(name));
}
void AXNodeData::SetNameExplicitlyEmpty() {
SetNameFrom(ax::mojom::NameFrom::kAttributeExplicitlyEmpty);
}
void AXNodeData::SetDescription(const std::string& description) {
AddStringAttribute(ax::mojom::StringAttribute::kDescription, description);
}
void AXNodeData::SetDescription(const base::string16& description) {
SetDescription(base::UTF16ToUTF8(description));
}
void AXNodeData::SetValue(const std::string& value) {
AddStringAttribute(ax::mojom::StringAttribute::kValue, value);
}
void AXNodeData::SetValue(const base::string16& value) {
SetValue(base::UTF16ToUTF8(value));
}
bool AXNodeData::HasState(ax::mojom::State state_enum) const {
return IsFlagSet(state, static_cast<uint32_t>(state_enum));
}
bool AXNodeData::HasAction(ax::mojom::Action action) const {
return IsFlagSet(actions, static_cast<uint32_t>(action));
}
bool AXNodeData::HasTextStyle(ax::mojom::TextStyle text_style_enum) const {
int32_t style = GetIntAttribute(ax::mojom::IntAttribute::kTextStyle);
return IsFlagSet(style, static_cast<uint32_t>(text_style_enum));
}
bool AXNodeData::HasDropeffect(ax::mojom::Dropeffect dropeffect_enum) const {
int32_t dropeffect = GetIntAttribute(ax::mojom::IntAttribute::kDropeffect);
return IsFlagSet(dropeffect, static_cast<uint32_t>(dropeffect_enum));
}
ax::mojom::State AXNodeData::AddState(ax::mojom::State state_enum) {
DCHECK_GT(static_cast<int>(state_enum),
static_cast<int>(ax::mojom::State::kNone));
DCHECK_LE(static_cast<int>(state_enum),
static_cast<int>(ax::mojom::State::kMaxValue));
state = ModifyFlag(state, static_cast<uint32_t>(state_enum), true);
return static_cast<ax::mojom::State>(state);
}
ax::mojom::State AXNodeData::RemoveState(ax::mojom::State state_enum) {
DCHECK_GT(static_cast<int>(state_enum),
static_cast<int>(ax::mojom::State::kNone));
DCHECK_LE(static_cast<int>(state_enum),
static_cast<int>(ax::mojom::State::kMaxValue));
state = ModifyFlag(state, static_cast<uint32_t>(state_enum), false);
return static_cast<ax::mojom::State>(state);
}
ax::mojom::Action AXNodeData::AddAction(ax::mojom::Action action_enum) {
switch (action_enum) {
case ax::mojom::Action::kNone:
NOTREACHED();
break;
// Note: all of the attributes are included here explicitly, rather than
// using "default:", so that it's a compiler error to add a new action
// without explicitly considering whether there are mutually exclusive
// actions that can be performed on a UI control at the same time.
case ax::mojom::Action::kBlur:
case ax::mojom::Action::kFocus: {
ax::mojom::Action excluded_action =
(action_enum == ax::mojom::Action::kBlur) ? ax::mojom::Action::kFocus
: ax::mojom::Action::kBlur;
DCHECK(!HasAction(excluded_action)) << excluded_action;
break;
}
case ax::mojom::Action::kClearAccessibilityFocus:
case ax::mojom::Action::kCustomAction:
case ax::mojom::Action::kDecrement:
case ax::mojom::Action::kDoDefault:
case ax::mojom::Action::kGetImageData:
case ax::mojom::Action::kHitTest:
case ax::mojom::Action::kIncrement:
case ax::mojom::Action::kInternalInvalidateTree:
case ax::mojom::Action::kLoadInlineTextBoxes:
case ax::mojom::Action::kReplaceSelectedText:
case ax::mojom::Action::kScrollToMakeVisible:
case ax::mojom::Action::kScrollToPoint:
case ax::mojom::Action::kSetAccessibilityFocus:
case ax::mojom::Action::kSetScrollOffset:
case ax::mojom::Action::kSetSelection:
case ax::mojom::Action::kSetSequentialFocusNavigationStartingPoint:
case ax::mojom::Action::kSetValue:
case ax::mojom::Action::kShowContextMenu:
case ax::mojom::Action::kScrollBackward:
case ax::mojom::Action::kScrollForward:
case ax::mojom::Action::kScrollUp:
case ax::mojom::Action::kScrollDown:
case ax::mojom::Action::kScrollLeft:
case ax::mojom::Action::kScrollRight:
case ax::mojom::Action::kGetTextLocation:
case ax::mojom::Action::kAnnotatePageImages:
case ax::mojom::Action::kSignalEndOfTest:
case ax::mojom::Action::kHideTooltip:
case ax::mojom::Action::kShowTooltip:
break;
}
actions = ModifyFlag(actions, static_cast<uint32_t>(action_enum), true);
return static_cast<ax::mojom::Action>(actions);
}
void AXNodeData::AddTextStyle(ax::mojom::TextStyle text_style_enum) {
DCHECK_GE(static_cast<int>(text_style_enum),
static_cast<int>(ax::mojom::TextStyle::kMinValue));
DCHECK_LE(static_cast<int>(text_style_enum),
static_cast<int>(ax::mojom::TextStyle::kMaxValue));
int32_t style = GetIntAttribute(ax::mojom::IntAttribute::kTextStyle);
style = ModifyFlag(style, static_cast<uint32_t>(text_style_enum), true);
RemoveIntAttribute(ax::mojom::IntAttribute::kTextStyle);
AddIntAttribute(ax::mojom::IntAttribute::kTextStyle, style);
}
void AXNodeData::AddDropeffect(ax::mojom::Dropeffect dropeffect_enum) {
DCHECK_GE(static_cast<int>(dropeffect_enum),
static_cast<int>(ax::mojom::Dropeffect::kMinValue));
DCHECK_LE(static_cast<int>(dropeffect_enum),
static_cast<int>(ax::mojom::Dropeffect::kMaxValue));
int32_t dropeffect = GetIntAttribute(ax::mojom::IntAttribute::kDropeffect);
dropeffect =
ModifyFlag(dropeffect, static_cast<uint32_t>(dropeffect_enum), true);
RemoveIntAttribute(ax::mojom::IntAttribute::kDropeffect);
AddIntAttribute(ax::mojom::IntAttribute::kDropeffect, dropeffect);
}
ax::mojom::CheckedState AXNodeData::GetCheckedState() const {
return static_cast<ax::mojom::CheckedState>(
GetIntAttribute(ax::mojom::IntAttribute::kCheckedState));
}
void AXNodeData::SetCheckedState(ax::mojom::CheckedState checked_state) {
if (HasIntAttribute(ax::mojom::IntAttribute::kCheckedState))
RemoveIntAttribute(ax::mojom::IntAttribute::kCheckedState);
if (checked_state != ax::mojom::CheckedState::kNone) {
AddIntAttribute(ax::mojom::IntAttribute::kCheckedState,
static_cast<int32_t>(checked_state));
}
}
ax::mojom::DefaultActionVerb AXNodeData::GetDefaultActionVerb() const {
return static_cast<ax::mojom::DefaultActionVerb>(
GetIntAttribute(ax::mojom::IntAttribute::kDefaultActionVerb));
}
void AXNodeData::SetDefaultActionVerb(
ax::mojom::DefaultActionVerb default_action_verb) {
if (HasIntAttribute(ax::mojom::IntAttribute::kDefaultActionVerb))
RemoveIntAttribute(ax::mojom::IntAttribute::kDefaultActionVerb);
if (default_action_verb != ax::mojom::DefaultActionVerb::kNone) {
AddIntAttribute(ax::mojom::IntAttribute::kDefaultActionVerb,
static_cast<int32_t>(default_action_verb));
}
}
ax::mojom::HasPopup AXNodeData::GetHasPopup() const {
return static_cast<ax::mojom::HasPopup>(
GetIntAttribute(ax::mojom::IntAttribute::kHasPopup));
}
void AXNodeData::SetHasPopup(ax::mojom::HasPopup has_popup) {
if (HasIntAttribute(ax::mojom::IntAttribute::kHasPopup))
RemoveIntAttribute(ax::mojom::IntAttribute::kHasPopup);
if (has_popup != ax::mojom::HasPopup::kFalse) {
AddIntAttribute(ax::mojom::IntAttribute::kHasPopup,
static_cast<int32_t>(has_popup));
}
}
ax::mojom::InvalidState AXNodeData::GetInvalidState() const {
return static_cast<ax::mojom::InvalidState>(
GetIntAttribute(ax::mojom::IntAttribute::kInvalidState));
}
void AXNodeData::SetInvalidState(ax::mojom::InvalidState invalid_state) {
if (HasIntAttribute(ax::mojom::IntAttribute::kInvalidState))
RemoveIntAttribute(ax::mojom::IntAttribute::kInvalidState);
if (invalid_state != ax::mojom::InvalidState::kNone) {
AddIntAttribute(ax::mojom::IntAttribute::kInvalidState,
static_cast<int32_t>(invalid_state));
}
}
ax::mojom::NameFrom AXNodeData::GetNameFrom() const {
return static_cast<ax::mojom::NameFrom>(
GetIntAttribute(ax::mojom::IntAttribute::kNameFrom));
}
void AXNodeData::SetNameFrom(ax::mojom::NameFrom name_from) {
if (HasIntAttribute(ax::mojom::IntAttribute::kNameFrom))
RemoveIntAttribute(ax::mojom::IntAttribute::kNameFrom);
if (name_from != ax::mojom::NameFrom::kNone) {
AddIntAttribute(ax::mojom::IntAttribute::kNameFrom,
static_cast<int32_t>(name_from));
}
}
ax::mojom::DescriptionFrom AXNodeData::GetDescriptionFrom() const {
return static_cast<ax::mojom::DescriptionFrom>(
GetIntAttribute(ax::mojom::IntAttribute::kDescriptionFrom));
}
void AXNodeData::SetDescriptionFrom(
ax::mojom::DescriptionFrom description_from) {
if (HasIntAttribute(ax::mojom::IntAttribute::kDescriptionFrom))
RemoveIntAttribute(ax::mojom::IntAttribute::kDescriptionFrom);
if (description_from != ax::mojom::DescriptionFrom::kNone) {
AddIntAttribute(ax::mojom::IntAttribute::kDescriptionFrom,
static_cast<int32_t>(description_from));
}
}
ax::mojom::TextPosition AXNodeData::GetTextPosition() const {
return static_cast<ax::mojom::TextPosition>(
GetIntAttribute(ax::mojom::IntAttribute::kTextPosition));
}
void AXNodeData::SetTextPosition(ax::mojom::TextPosition text_position) {
if (HasIntAttribute(ax::mojom::IntAttribute::kTextPosition))
RemoveIntAttribute(ax::mojom::IntAttribute::kTextPosition);
if (text_position != ax::mojom::TextPosition::kNone) {
AddIntAttribute(ax::mojom::IntAttribute::kTextPosition,
static_cast<int32_t>(text_position));
}
}
ax::mojom::ImageAnnotationStatus AXNodeData::GetImageAnnotationStatus() const {
return static_cast<ax::mojom::ImageAnnotationStatus>(
GetIntAttribute(ax::mojom::IntAttribute::kImageAnnotationStatus));
}
void AXNodeData::SetImageAnnotationStatus(
ax::mojom::ImageAnnotationStatus status) {
if (HasIntAttribute(ax::mojom::IntAttribute::kImageAnnotationStatus))
RemoveIntAttribute(ax::mojom::IntAttribute::kImageAnnotationStatus);
if (status != ax::mojom::ImageAnnotationStatus::kNone) {
AddIntAttribute(ax::mojom::IntAttribute::kImageAnnotationStatus,
static_cast<int32_t>(status));
}
}
ax::mojom::Restriction AXNodeData::GetRestriction() const {
return static_cast<ax::mojom::Restriction>(
GetIntAttribute(ax::mojom::IntAttribute::kRestriction));
}
void AXNodeData::SetRestriction(ax::mojom::Restriction restriction) {
if (HasIntAttribute(ax::mojom::IntAttribute::kRestriction))
RemoveIntAttribute(ax::mojom::IntAttribute::kRestriction);
if (restriction != ax::mojom::Restriction::kNone) {
AddIntAttribute(ax::mojom::IntAttribute::kRestriction,
static_cast<int32_t>(restriction));
}
}
ax::mojom::ListStyle AXNodeData::GetListStyle() const {
return static_cast<ax::mojom::ListStyle>(
GetIntAttribute(ax::mojom::IntAttribute::kListStyle));
}
void AXNodeData::SetListStyle(ax::mojom::ListStyle list_style) {
if (HasIntAttribute(ax::mojom::IntAttribute::kListStyle))
RemoveIntAttribute(ax::mojom::IntAttribute::kListStyle);
if (list_style != ax::mojom::ListStyle::kNone) {
AddIntAttribute(ax::mojom::IntAttribute::kListStyle,
static_cast<int32_t>(list_style));
}
}
ax::mojom::TextDirection AXNodeData::GetTextDirection() const {
return static_cast<ax::mojom::TextDirection>(
GetIntAttribute(ax::mojom::IntAttribute::kTextDirection));
}
void AXNodeData::SetTextDirection(ax::mojom::TextDirection text_direction) {
if (HasIntAttribute(ax::mojom::IntAttribute::kTextDirection))
RemoveIntAttribute(ax::mojom::IntAttribute::kTextDirection);
if (text_direction != ax::mojom::TextDirection::kNone) {
AddIntAttribute(ax::mojom::IntAttribute::kTextDirection,
static_cast<int32_t>(text_direction));
}
}
bool AXNodeData::IsClickable() const {
// If it has a custom default action verb except for
// ax::mojom::DefaultActionVerb::kClickAncestor, it's definitely clickable.
// ax::mojom::DefaultActionVerb::kClickAncestor is used when an element with a
// click listener is present in its ancestry chain.
if (HasIntAttribute(ax::mojom::IntAttribute::kDefaultActionVerb) &&
(GetDefaultActionVerb() != ax::mojom::DefaultActionVerb::kClickAncestor))
return true;
return ui::IsClickable(role);
}
bool AXNodeData::IsIgnored() const {
if (HasState(ax::mojom::State::kIgnored) || role == ax::mojom::Role::kIgnored)
return true;
return false;
}
bool AXNodeData::IsInvocable() const {
// A control is "invocable" if it initiates an action when activated but
// does not maintain any state. A control that maintains state when activated
// would be considered a toggle or expand-collapse element - these elements
// are "clickable" but not "invocable".
return IsClickable() && !SupportsExpandCollapse() &&
!ui::SupportsToggle(role);
}
bool AXNodeData::IsPlainTextField() const {
// We need to check both the role and editable state, because some ARIA text
// fields may in fact not be editable, whilst some editable fields might not
// have the role.
return !HasState(ax::mojom::State::kRichlyEditable) &&
(role == ax::mojom::Role::kTextField ||
role == ax::mojom::Role::kTextFieldWithComboBox ||
role == ax::mojom::Role::kSearchBox ||
GetBoolAttribute(ax::mojom::BoolAttribute::kEditableRoot));
}
bool AXNodeData::IsReadOnlyOrDisabled() const {
switch (GetRestriction()) {
case ax::mojom::Restriction::kReadOnly:
case ax::mojom::Restriction::kDisabled:
return true;
case ax::mojom::Restriction::kNone: {
if (HasState(ax::mojom::State::kEditable) ||
HasState(ax::mojom::State::kRichlyEditable)) {
return false;
}
// By default, when readonly is not supported, we assume the node is never
// editable - then always readonly.
return ShouldHaveReadonlyStateByDefault(role) ||
!IsReadOnlySupported(role);
}
}
}
bool AXNodeData::IsRangeValueSupported() const {
// https://www.w3.org/TR/wai-aria-1.1/#aria-valuenow
// https://www.w3.org/TR/wai-aria-1.1/#aria-valuetext
// Roles that support aria-valuetext / aria-valuenow
switch (role) {
case ax::mojom::Role::kMeter:
case ax::mojom::Role::kProgressIndicator:
case ax::mojom::Role::kScrollBar:
case ax::mojom::Role::kSlider:
case ax::mojom::Role::kSpinButton:
return true;
case ax::mojom::Role::kSplitter:
// According to the ARIA spec, role="separator" acts as a splitter only
// when focusable, and supports a range only in that case.
return HasState(ax::mojom::State::kFocusable);
default:
return false;
}
}
bool AXNodeData::SupportsExpandCollapse() const {
if (GetHasPopup() != ax::mojom::HasPopup::kFalse ||
HasState(ax::mojom::State::kExpanded) ||
HasState(ax::mojom::State::kCollapsed))
return true;
return ui::SupportsExpandCollapse(role);
}
bool AXNodeData::IsContainedInActiveLiveRegion() const {
if (!HasStringAttribute(ax::mojom::StringAttribute::kContainerLiveStatus))
return false;
if (base::CompareCaseInsensitiveASCII(
GetStringAttribute(ax::mojom::StringAttribute::kContainerLiveStatus),
"off") == 0)
return false;
if (GetBoolAttribute(ax::mojom::BoolAttribute::kContainerLiveBusy))
return false;
return true;
}
std::string AXNodeData::ToString() const {
std::string result;
result += "id=" + base::NumberToString(id);
result += " ";
result += ui::ToString(role);
result += StateBitfieldToString(state);
result += " " + relative_bounds.ToString();
for (const std::pair<ax::mojom::IntAttribute, int32_t>& int_attribute :
int_attributes) {
std::string value = base::NumberToString(int_attribute.second);
switch (int_attribute.first) {
case ax::mojom::IntAttribute::kDefaultActionVerb:
result += " action=" + base::UTF16ToUTF8(ActionVerbToUnlocalizedString(
static_cast<ax::mojom::DefaultActionVerb>(
int_attribute.second)));
break;
case ax::mojom::IntAttribute::kScrollX:
result += " scroll_x=" + value;
break;