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/* -*- 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 "HTMLTableAccessible.h"
#include "mozilla/DebugOnly.h"
#include "nsAccessibilityService.h"
#include "nsAccUtils.h"
#include "AccAttributes.h"
#include "CacheConstants.h"
#include "DocAccessible.h"
#include "LocalAccessible-inl.h"
#include "nsTextEquivUtils.h"
#include "Relation.h"
#include "Role.h"
#include "States.h"
#include "TreeWalker.h"
#include "mozilla/PresShell.h"
#include "mozilla/dom/HTMLTableElement.h"
#include "nsIHTMLCollection.h"
#include "mozilla/dom/Document.h"
#include "nsITableCellLayout.h"
#include "nsFrameSelection.h"
#include "nsError.h"
#include "nsArrayUtils.h"
#include "nsComponentManagerUtils.h"
#include "nsNameSpaceManager.h"
#include "nsTableCellFrame.h"
#include "nsTableWrapperFrame.h"
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::a11y;
////////////////////////////////////////////////////////////////////////////////
// HTMLTableCellAccessible
////////////////////////////////////////////////////////////////////////////////
HTMLTableCellAccessible::HTMLTableCellAccessible(nsIContent* aContent,
DocAccessible* aDoc)
: HyperTextAccessibleWrap(aContent, aDoc) {
mType = eHTMLTableCellType;
mGenericTypes |= eTableCell;
}
////////////////////////////////////////////////////////////////////////////////
// HTMLTableCellAccessible: LocalAccessible implementation
role HTMLTableCellAccessible::NativeRole() const {
if (mContent->IsMathMLElement(nsGkAtoms::mtd_)) {
return roles::MATHML_CELL;
}
return roles::CELL;
}
uint64_t HTMLTableCellAccessible::NativeState() const {
uint64_t state = HyperTextAccessibleWrap::NativeState();
nsIFrame* frame = mContent->GetPrimaryFrame();
NS_ASSERTION(frame, "No frame for valid cell accessible!");
if (frame && frame->IsSelected()) {
state |= states::SELECTED;
}
return state;
}
uint64_t HTMLTableCellAccessible::NativeInteractiveState() const {
return HyperTextAccessibleWrap::NativeInteractiveState() | states::SELECTABLE;
}
already_AddRefed<AccAttributes> HTMLTableCellAccessible::NativeAttributes() {
RefPtr<AccAttributes> attributes =
HyperTextAccessibleWrap::NativeAttributes();
// table-cell-index attribute
TableAccessible* table = Table();
if (!table) {
return attributes.forget();
}
int32_t rowIdx = -1, colIdx = -1;
nsresult rv = GetCellIndexes(rowIdx, colIdx);
if (NS_FAILED(rv)) {
return attributes.forget();
}
attributes->SetAttribute(nsGkAtoms::tableCellIndex,
table->CellIndexAt(rowIdx, colIdx));
// abbr attribute
// Pick up object attribute from abbr DOM element (a child of the cell) or
// from abbr DOM attribute.
nsString abbrText;
if (ChildCount() == 1) {
LocalAccessible* abbr = LocalFirstChild();
if (abbr->IsAbbreviation()) {
nsIContent* firstChildNode = abbr->GetContent()->GetFirstChild();
if (firstChildNode) {
nsTextEquivUtils::AppendTextEquivFromTextContent(firstChildNode,
&abbrText);
}
}
}
if (abbrText.IsEmpty()) {
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::abbr,
abbrText);
}
if (!abbrText.IsEmpty()) {
attributes->SetAttribute(nsGkAtoms::abbr, std::move(abbrText));
}
// axis attribute
nsString axisText;
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::axis, axisText);
if (!axisText.IsEmpty()) {
attributes->SetAttribute(nsGkAtoms::axis, std::move(axisText));
}
#ifdef DEBUG
RefPtr<nsAtom> cppClass = NS_Atomize(u"cppclass"_ns);
attributes->SetAttributeStringCopy(cppClass, u"HTMLTableCellAccessible"_ns);
#endif
return attributes.forget();
}
void HTMLTableCellAccessible::DOMAttributeChanged(int32_t aNameSpaceID,
nsAtom* aAttribute,
int32_t aModType,
const nsAttrValue* aOldValue,
uint64_t aOldState) {
HyperTextAccessibleWrap::DOMAttributeChanged(aNameSpaceID, aAttribute,
aModType, aOldValue, aOldState);
if (aAttribute == nsGkAtoms::headers || aAttribute == nsGkAtoms::abbr ||
aAttribute == nsGkAtoms::scope) {
mDoc->FireDelayedEvent(nsIAccessibleEvent::EVENT_OBJECT_ATTRIBUTE_CHANGED,
this);
if (TableAccessible* table = Table()) {
// Modifying these attributes can also modify our table's classification
// as either a layout or data table. Queue an update on the table itself
// to re-compute our "layout guess"
mDoc->QueueCacheUpdate(table->AsAccessible(), CacheDomain::Table);
}
mDoc->QueueCacheUpdate(this, CacheDomain::Table);
} else if (aAttribute == nsGkAtoms::rowspan ||
aAttribute == nsGkAtoms::colspan) {
if (TableAccessible* table = Table()) {
// Modifying these attributes can also modify our table's classification
// as either a layout or data table. Queue an update on the table itself
// to re-compute our "layout guess"
mDoc->QueueCacheUpdate(table->AsAccessible(), CacheDomain::Table);
}
mDoc->QueueCacheUpdate(this, CacheDomain::Table);
}
}
////////////////////////////////////////////////////////////////////////////////
// HTMLTableCellAccessible: TableCellAccessible implementation
TableAccessible* HTMLTableCellAccessible::Table() const {
LocalAccessible* parent = const_cast<HTMLTableCellAccessible*>(this);
while ((parent = parent->LocalParent())) {
if (parent->IsTable()) {
return parent->AsTable();
}
}
return nullptr;
}
uint32_t HTMLTableCellAccessible::ColIdx() const {
nsTableCellFrame* cellFrame = GetCellFrame();
NS_ENSURE_TRUE(cellFrame, 0);
return cellFrame->ColIndex();
}
uint32_t HTMLTableCellAccessible::RowIdx() const {
nsTableCellFrame* cellFrame = GetCellFrame();
NS_ENSURE_TRUE(cellFrame, 0);
return cellFrame->RowIndex();
}
uint32_t HTMLTableCellAccessible::ColExtent() const {
int32_t rowIdx = -1, colIdx = -1;
if (NS_FAILED(GetCellIndexes(rowIdx, colIdx))) {
return 0;
}
TableAccessible* table = Table();
NS_ASSERTION(table, "cell not in a table!");
if (!table) {
return 0;
}
return table->ColExtentAt(rowIdx, colIdx);
}
uint32_t HTMLTableCellAccessible::RowExtent() const {
int32_t rowIdx = -1, colIdx = -1;
if (NS_FAILED(GetCellIndexes(rowIdx, colIdx))) {
return 0;
}
TableAccessible* table = Table();
NS_ASSERTION(table, "cell not in atable!");
if (!table) {
return 0;
}
return table->RowExtentAt(rowIdx, colIdx);
}
void HTMLTableCellAccessible::ColHeaderCells(nsTArray<Accessible*>* aCells) {
IDRefsIterator itr(mDoc, mContent, nsGkAtoms::headers);
while (LocalAccessible* cell = itr.Next()) {
a11y::role cellRole = cell->Role();
if (cellRole == roles::COLUMNHEADER) {
aCells->AppendElement(cell);
} else if (cellRole != roles::ROWHEADER) {
// If referred table cell is at the same column then treat it as a column
// header.
TableCellAccessible* tableCell = cell->AsTableCell();
if (tableCell && tableCell->ColIdx() == ColIdx()) {
aCells->AppendElement(cell);
}
}
}
if (aCells->IsEmpty()) {
TableCellAccessible::ColHeaderCells(aCells);
}
}
void HTMLTableCellAccessible::RowHeaderCells(nsTArray<Accessible*>* aCells) {
IDRefsIterator itr(mDoc, mContent, nsGkAtoms::headers);
while (LocalAccessible* cell = itr.Next()) {
a11y::role cellRole = cell->Role();
if (cellRole == roles::ROWHEADER) {
aCells->AppendElement(cell);
} else if (cellRole != roles::COLUMNHEADER) {
// If referred table cell is at the same row then treat it as a column
// header.
TableCellAccessible* tableCell = cell->AsTableCell();
if (tableCell && tableCell->RowIdx() == RowIdx()) {
aCells->AppendElement(cell);
}
}
}
if (aCells->IsEmpty()) {
TableCellAccessible::RowHeaderCells(aCells);
}
}
bool HTMLTableCellAccessible::Selected() {
int32_t rowIdx = -1, colIdx = -1;
if (NS_FAILED(GetCellIndexes(rowIdx, colIdx))) {
return false;
}
TableAccessible* table = Table();
NS_ENSURE_TRUE(table, false);
return table->IsCellSelected(rowIdx, colIdx);
}
////////////////////////////////////////////////////////////////////////////////
// HTMLTableCellAccessible: protected implementation
nsITableCellLayout* HTMLTableCellAccessible::GetCellLayout() const {
return do_QueryFrame(mContent->GetPrimaryFrame());
}
nsTableCellFrame* HTMLTableCellAccessible::GetCellFrame() const {
return do_QueryFrame(mContent->GetPrimaryFrame());
}
nsresult HTMLTableCellAccessible::GetCellIndexes(int32_t& aRowIdx,
int32_t& aColIdx) const {
nsITableCellLayout* cellLayout = GetCellLayout();
NS_ENSURE_STATE(cellLayout);
return cellLayout->GetCellIndexes(aRowIdx, aColIdx);
}
////////////////////////////////////////////////////////////////////////////////
// HTMLTableHeaderCellAccessible
////////////////////////////////////////////////////////////////////////////////
HTMLTableHeaderCellAccessible::HTMLTableHeaderCellAccessible(
nsIContent* aContent, DocAccessible* aDoc)
: HTMLTableCellAccessible(aContent, aDoc) {}
////////////////////////////////////////////////////////////////////////////////
// HTMLTableHeaderCellAccessible: LocalAccessible implementation
role HTMLTableHeaderCellAccessible::NativeRole() const {
return GetHeaderCellRole(this);
}
////////////////////////////////////////////////////////////////////////////////
// HTMLTableRowAccessible
////////////////////////////////////////////////////////////////////////////////
role HTMLTableRowAccessible::NativeRole() const {
if (mContent->IsMathMLElement(nsGkAtoms::mtr_)) {
return roles::MATHML_TABLE_ROW;
} else if (mContent->IsMathMLElement(nsGkAtoms::mlabeledtr_)) {
return roles::MATHML_LABELED_ROW;
}
return roles::ROW;
}
// LocalAccessible protected
ENameValueFlag HTMLTableRowAccessible::NativeName(nsString& aName) const {
// For table row accessibles, we only want to calculate the name from the
// sub tree if an ARIA role is present.
if (HasStrongARIARole()) {
return AccessibleWrap::NativeName(aName);
}
return eNameOK;
}
////////////////////////////////////////////////////////////////////////////////
// HTMLTableAccessible
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// HTMLTableAccessible: LocalAccessible
bool HTMLTableAccessible::InsertChildAt(uint32_t aIndex,
LocalAccessible* aChild) {
// Move caption accessible so that it's the first child. Check for the first
// caption only, because nsAccessibilityService ensures we don't create
// accessibles for the other captions, since only the first is actually
// visible.
return HyperTextAccessible::InsertChildAt(
aChild->IsHTMLCaption() ? 0 : aIndex, aChild);
}
role HTMLTableAccessible::NativeRole() const {
if (mContent->IsMathMLElement(nsGkAtoms::mtable_)) {
return roles::MATHML_TABLE;
}
return roles::TABLE;
}
uint64_t HTMLTableAccessible::NativeState() const {
return LocalAccessible::NativeState() | states::READONLY;
}
ENameValueFlag HTMLTableAccessible::NativeName(nsString& aName) const {
ENameValueFlag nameFlag = LocalAccessible::NativeName(aName);
if (!aName.IsEmpty()) {
return nameFlag;
}
// Use table caption as a name.
LocalAccessible* caption = Caption();
if (caption) {
nsIContent* captionContent = caption->GetContent();
if (captionContent) {
nsTextEquivUtils::AppendTextEquivFromContent(this, captionContent,
&aName);
if (!aName.IsEmpty()) {
return eNameOK;
}
}
}
// If no caption then use summary as a name.
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::summary, aName);
return eNameOK;
}
void HTMLTableAccessible::DOMAttributeChanged(int32_t aNameSpaceID,
nsAtom* aAttribute,
int32_t aModType,
const nsAttrValue* aOldValue,
uint64_t aOldState) {
HyperTextAccessibleWrap::DOMAttributeChanged(aNameSpaceID, aAttribute,
aModType, aOldValue, aOldState);
if (aAttribute == nsGkAtoms::summary) {
nsAutoString name;
ARIAName(name);
if (name.IsEmpty()) {
if (!Caption()) {
// XXX: Should really be checking if caption provides a name.
mDoc->FireDelayedEvent(nsIAccessibleEvent::EVENT_NAME_CHANGE, this);
}
}
mDoc->FireDelayedEvent(nsIAccessibleEvent::EVENT_OBJECT_ATTRIBUTE_CHANGED,
this);
mDoc->QueueCacheUpdate(this, CacheDomain::Table);
}
}
already_AddRefed<AccAttributes> HTMLTableAccessible::NativeAttributes() {
RefPtr<AccAttributes> attributes = AccessibleWrap::NativeAttributes();
if (mContent->IsMathMLElement(nsGkAtoms::mtable_)) {
GetAccService()->MarkupAttributes(this, attributes);
}
if (IsProbablyLayoutTable()) {
attributes->SetAttribute(nsGkAtoms::layout_guess, true);
}
return attributes.forget();
}
////////////////////////////////////////////////////////////////////////////////
// HTMLTableAccessible: LocalAccessible
Relation HTMLTableAccessible::RelationByType(RelationType aType) const {
Relation rel = AccessibleWrap::RelationByType(aType);
if (aType == RelationType::LABELLED_BY) {
rel.AppendTarget(Caption());
}
return rel;
}
////////////////////////////////////////////////////////////////////////////////
// HTMLTableAccessible: Table
LocalAccessible* HTMLTableAccessible::Caption() const {
LocalAccessible* child = mChildren.SafeElementAt(0, nullptr);
// Since this is an HTML table the caption needs to be a caption
// element with no ARIA role (except for a reduntant role='caption').
// If we did a full Role() calculation here we risk getting into an infinite
// loop where the parent role would depend on its name which would need to be
// calculated by retrieving the caption (bug 1420773.)
return child && child->NativeRole() == roles::CAPTION &&
(!child->HasStrongARIARole() ||
child->IsARIARole(nsGkAtoms::caption))
? child
: nullptr;
}
void HTMLTableAccessible::Summary(nsString& aSummary) {
dom::HTMLTableElement* table = dom::HTMLTableElement::FromNode(mContent);
if (table) {
table->GetSummary(aSummary);
}
}
uint32_t HTMLTableAccessible::ColCount() const {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
return tableFrame ? tableFrame->GetColCount() : 0;
}
uint32_t HTMLTableAccessible::RowCount() {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
return tableFrame ? tableFrame->GetRowCount() : 0;
}
uint32_t HTMLTableAccessible::SelectedCellCount() {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return 0;
}
uint32_t count = 0, rowCount = RowCount(), colCount = ColCount();
for (uint32_t rowIdx = 0; rowIdx < rowCount; rowIdx++) {
for (uint32_t colIdx = 0; colIdx < colCount; colIdx++) {
nsTableCellFrame* cellFrame = tableFrame->GetCellFrameAt(rowIdx, colIdx);
if (!cellFrame || !cellFrame->IsSelected()) {
continue;
}
uint32_t startRow = cellFrame->RowIndex();
uint32_t startCol = cellFrame->ColIndex();
if (startRow == rowIdx && startCol == colIdx) {
count++;
}
}
}
return count;
}
uint32_t HTMLTableAccessible::SelectedColCount() {
uint32_t count = 0, colCount = ColCount();
for (uint32_t colIdx = 0; colIdx < colCount; colIdx++) {
if (IsColSelected(colIdx)) {
count++;
}
}
return count;
}
uint32_t HTMLTableAccessible::SelectedRowCount() {
uint32_t count = 0, rowCount = RowCount();
for (uint32_t rowIdx = 0; rowIdx < rowCount; rowIdx++) {
if (IsRowSelected(rowIdx)) {
count++;
}
}
return count;
}
void HTMLTableAccessible::SelectedCells(nsTArray<Accessible*>* aCells) {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return;
}
uint32_t rowCount = RowCount(), colCount = ColCount();
for (uint32_t rowIdx = 0; rowIdx < rowCount; rowIdx++) {
for (uint32_t colIdx = 0; colIdx < colCount; colIdx++) {
nsTableCellFrame* cellFrame = tableFrame->GetCellFrameAt(rowIdx, colIdx);
if (!cellFrame || !cellFrame->IsSelected()) {
continue;
}
uint32_t startRow = cellFrame->RowIndex();
uint32_t startCol = cellFrame->ColIndex();
if (startRow != rowIdx || startCol != colIdx) {
continue;
}
LocalAccessible* cell = mDoc->GetAccessible(cellFrame->GetContent());
aCells->AppendElement(cell);
}
}
}
void HTMLTableAccessible::SelectedCellIndices(nsTArray<uint32_t>* aCells) {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return;
}
uint32_t rowCount = RowCount(), colCount = ColCount();
for (uint32_t rowIdx = 0; rowIdx < rowCount; rowIdx++) {
for (uint32_t colIdx = 0; colIdx < colCount; colIdx++) {
nsTableCellFrame* cellFrame = tableFrame->GetCellFrameAt(rowIdx, colIdx);
if (!cellFrame || !cellFrame->IsSelected()) {
continue;
}
uint32_t startCol = cellFrame->ColIndex();
uint32_t startRow = cellFrame->RowIndex();
if (startRow == rowIdx && startCol == colIdx) {
aCells->AppendElement(CellIndexAt(rowIdx, colIdx));
}
}
}
}
void HTMLTableAccessible::SelectedColIndices(nsTArray<uint32_t>* aCols) {
uint32_t colCount = ColCount();
for (uint32_t colIdx = 0; colIdx < colCount; colIdx++) {
if (IsColSelected(colIdx)) {
aCols->AppendElement(colIdx);
}
}
}
void HTMLTableAccessible::SelectedRowIndices(nsTArray<uint32_t>* aRows) {
uint32_t rowCount = RowCount();
for (uint32_t rowIdx = 0; rowIdx < rowCount; rowIdx++) {
if (IsRowSelected(rowIdx)) {
aRows->AppendElement(rowIdx);
}
}
}
LocalAccessible* HTMLTableAccessible::CellAt(uint32_t aRowIdx,
uint32_t aColIdx) {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return nullptr;
}
nsIContent* cellContent = tableFrame->GetCellAt(aRowIdx, aColIdx);
LocalAccessible* cell = mDoc->GetAccessible(cellContent);
// Sometimes, the accessible returned here is a row accessible instead of
// a cell accessible, for example when a cell has CSS display:block; set.
// In such cases, iterate through the cells in this row differently to find
// it.
if (cell && cell->IsTableRow()) {
return CellInRowAt(cell, aColIdx);
}
// XXX bug 576838: bizarre tables (like table6 in tables/test_table2.html) may
// return itself as a cell what makes Orca hang.
return cell == this ? nullptr : cell;
}
int32_t HTMLTableAccessible::CellIndexAt(uint32_t aRowIdx, uint32_t aColIdx) {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return -1;
}
int32_t cellIndex = tableFrame->GetIndexByRowAndColumn(aRowIdx, aColIdx);
if (cellIndex == -1) {
// Sometimes, the accessible returned here is a row accessible instead of
// a cell accessible, for example when a cell has CSS display:block; set.
// In such cases, iterate through the cells in this row differently to find
// it.
nsIContent* cellContent = tableFrame->GetCellAt(aRowIdx, aColIdx);
LocalAccessible* cell = mDoc->GetAccessible(cellContent);
if (cell && cell->IsTableRow()) {
return TableAccessible::CellIndexAt(aRowIdx, aColIdx);
}
}
return cellIndex;
}
int32_t HTMLTableAccessible::ColIndexAt(uint32_t aCellIdx) {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return -1;
}
int32_t rowIdx = -1, colIdx = -1;
tableFrame->GetRowAndColumnByIndex(aCellIdx, &rowIdx, &colIdx);
if (colIdx == -1) {
// Sometimes, the index returned indicates that this is not a regular
// cell, for example when a cell has CSS display:block; set.
// In such cases, try the super class method to find it.
return TableAccessible::ColIndexAt(aCellIdx);
}
return colIdx;
}
int32_t HTMLTableAccessible::RowIndexAt(uint32_t aCellIdx) {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return -1;
}
int32_t rowIdx = -1, colIdx = -1;
tableFrame->GetRowAndColumnByIndex(aCellIdx, &rowIdx, &colIdx);
if (rowIdx == -1) {
// Sometimes, the index returned indicates that this is not a regular
// cell, for example when a cell has CSS display:block; set.
// In such cases, try the super class method to find it.
return TableAccessible::RowIndexAt(aCellIdx);
}
return rowIdx;
}
void HTMLTableAccessible::RowAndColIndicesAt(uint32_t aCellIdx,
int32_t* aRowIdx,
int32_t* aColIdx) {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (tableFrame) {
tableFrame->GetRowAndColumnByIndex(aCellIdx, aRowIdx, aColIdx);
if (*aRowIdx == -1 || *aColIdx == -1) {
// Sometimes, the index returned indicates that this is not a regular
// cell, for example when a cell has CSS display:block; set.
// In such cases, try the super class method to find it.
TableAccessible::RowAndColIndicesAt(aCellIdx, aRowIdx, aColIdx);
}
}
}
uint32_t HTMLTableAccessible::ColExtentAt(uint32_t aRowIdx, uint32_t aColIdx) {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return 0;
}
uint32_t colExtent = tableFrame->GetEffectiveColSpanAt(aRowIdx, aColIdx);
if (colExtent == 0) {
nsIContent* cellContent = tableFrame->GetCellAt(aRowIdx, aColIdx);
LocalAccessible* cell = mDoc->GetAccessible(cellContent);
if (cell && cell->IsTableRow()) {
return TableAccessible::ColExtentAt(aRowIdx, aColIdx);
}
}
return colExtent;
}
uint32_t HTMLTableAccessible::RowExtentAt(uint32_t aRowIdx, uint32_t aColIdx) {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return 0;
}
return tableFrame->GetEffectiveRowSpanAt(aRowIdx, aColIdx);
}
bool HTMLTableAccessible::IsColSelected(uint32_t aColIdx) {
bool isSelected = false;
uint32_t rowCount = RowCount();
for (uint32_t rowIdx = 0; rowIdx < rowCount; rowIdx++) {
isSelected = IsCellSelected(rowIdx, aColIdx);
if (!isSelected) {
return false;
}
}
return isSelected;
}
bool HTMLTableAccessible::IsRowSelected(uint32_t aRowIdx) {
bool isSelected = false;
uint32_t colCount = ColCount();
for (uint32_t colIdx = 0; colIdx < colCount; colIdx++) {
isSelected = IsCellSelected(aRowIdx, colIdx);
if (!isSelected) {
return false;
}
}
return isSelected;
}
bool HTMLTableAccessible::IsCellSelected(uint32_t aRowIdx, uint32_t aColIdx) {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return false;
}
nsTableCellFrame* cellFrame = tableFrame->GetCellFrameAt(aRowIdx, aColIdx);
return cellFrame ? cellFrame->IsSelected() : false;
}
void HTMLTableAccessible::SelectRow(uint32_t aRowIdx) {
DebugOnly<nsresult> rv =
RemoveRowsOrColumnsFromSelection(aRowIdx, TableSelectionMode::Row, true);
NS_ASSERTION(NS_SUCCEEDED(rv),
"RemoveRowsOrColumnsFromSelection() Shouldn't fail!");
AddRowOrColumnToSelection(aRowIdx, TableSelectionMode::Row);
}
void HTMLTableAccessible::SelectCol(uint32_t aColIdx) {
DebugOnly<nsresult> rv = RemoveRowsOrColumnsFromSelection(
aColIdx, TableSelectionMode::Column, true);
NS_ASSERTION(NS_SUCCEEDED(rv),
"RemoveRowsOrColumnsFromSelection() Shouldn't fail!");
AddRowOrColumnToSelection(aColIdx, TableSelectionMode::Column);
}
void HTMLTableAccessible::UnselectRow(uint32_t aRowIdx) {
RemoveRowsOrColumnsFromSelection(aRowIdx, TableSelectionMode::Row, false);
}
void HTMLTableAccessible::UnselectCol(uint32_t aColIdx) {
RemoveRowsOrColumnsFromSelection(aColIdx, TableSelectionMode::Column, false);
}
////////////////////////////////////////////////////////////////////////////////
// HTMLTableAccessible: protected implementation
nsresult HTMLTableAccessible::AddRowOrColumnToSelection(
int32_t aIndex, TableSelectionMode aTarget) {
bool doSelectRow = (aTarget == TableSelectionMode::Row);
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return NS_OK;
}
uint32_t count = 0;
if (doSelectRow) {
count = ColCount();
} else {
count = RowCount();
}
PresShell* presShell = mDoc->PresShellPtr();
RefPtr<nsFrameSelection> tableSelection =
const_cast<nsFrameSelection*>(presShell->ConstFrameSelection());
for (uint32_t idx = 0; idx < count; idx++) {
int32_t rowIdx = doSelectRow ? aIndex : idx;
int32_t colIdx = doSelectRow ? idx : aIndex;
nsTableCellFrame* cellFrame = tableFrame->GetCellFrameAt(rowIdx, colIdx);
if (cellFrame && !cellFrame->IsSelected()) {
nsresult rv = tableSelection->SelectCellElement(cellFrame->GetContent());
NS_ENSURE_SUCCESS(rv, rv);
}
}
return NS_OK;
}
nsresult HTMLTableAccessible::RemoveRowsOrColumnsFromSelection(
int32_t aIndex, TableSelectionMode aTarget, bool aIsOuter) {
nsTableWrapperFrame* tableFrame = GetTableWrapperFrame();
if (!tableFrame) {
return NS_OK;
}
PresShell* presShell = mDoc->PresShellPtr();
RefPtr<nsFrameSelection> tableSelection =
const_cast<nsFrameSelection*>(presShell->ConstFrameSelection());
bool doUnselectRow = (aTarget == TableSelectionMode::Row);
uint32_t count = doUnselectRow ? ColCount() : RowCount();
int32_t startRowIdx = doUnselectRow ? aIndex : 0;
int32_t endRowIdx = doUnselectRow ? aIndex : count - 1;
int32_t startColIdx = doUnselectRow ? 0 : aIndex;
int32_t endColIdx = doUnselectRow ? count - 1 : aIndex;
if (aIsOuter) {
return tableSelection->RestrictCellsToSelection(
mContent, startRowIdx, startColIdx, endRowIdx, endColIdx);
}
return tableSelection->RemoveCellsFromSelection(
mContent, startRowIdx, startColIdx, endRowIdx, endColIdx);
}
void HTMLTableAccessible::Description(nsString& aDescription) const {
// Helpful for debugging layout vs. data tables
aDescription.Truncate();
LocalAccessible::Description(aDescription);
if (!aDescription.IsEmpty()) {
return;
}
// Use summary as description if it weren't used as a name.
// XXX: get rid code duplication with NameInternal().
LocalAccessible* caption = Caption();
if (caption) {
nsIContent* captionContent = caption->GetContent();
if (captionContent) {
nsAutoString captionText;
nsTextEquivUtils::AppendTextEquivFromContent(this, captionContent,
&captionText);
if (!captionText.IsEmpty()) { // summary isn't used as a name.
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::summary,
aDescription);
}
}
}
#ifdef SHOW_LAYOUT_HEURISTIC
if (aDescription.IsEmpty()) {
bool isProbablyForLayout = IsProbablyLayoutTable();
aDescription = mLayoutHeuristic;
}
printf("\nTABLE: %s\n", NS_ConvertUTF16toUTF8(mLayoutHeuristic).get());
#endif
}
nsTableWrapperFrame* HTMLTableAccessible::GetTableWrapperFrame() const {
nsTableWrapperFrame* tableFrame = do_QueryFrame(mContent->GetPrimaryFrame());
if (tableFrame && tableFrame->PrincipalChildList().FirstChild()) {
return tableFrame;
}
return nullptr;
}
////////////////////////////////////////////////////////////////////////////////
// HTMLCaptionAccessible
////////////////////////////////////////////////////////////////////////////////
Relation HTMLCaptionAccessible::RelationByType(RelationType aType) const {
Relation rel = HyperTextAccessible::RelationByType(aType);
if (aType == RelationType::LABEL_FOR) {
rel.AppendTarget(LocalParent());
}
return rel;
}
role HTMLCaptionAccessible::NativeRole() const { return roles::CAPTION; }