зеркало из https://github.com/mozilla/gecko-dev.git
616 строки
15 KiB
C++
616 строки
15 KiB
C++
/* -*- 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 "ARIAGridAccessible-inl.h"
|
|
|
|
#include "Accessible-inl.h"
|
|
#include "AccIterator.h"
|
|
#include "nsAccUtils.h"
|
|
#include "Role.h"
|
|
#include "States.h"
|
|
|
|
#include "nsIMutableArray.h"
|
|
#include "nsIPersistentProperties2.h"
|
|
#include "nsComponentManagerUtils.h"
|
|
|
|
using namespace mozilla;
|
|
using namespace mozilla::a11y;
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// ARIAGridAccessible
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Constructor
|
|
|
|
ARIAGridAccessible::
|
|
ARIAGridAccessible(nsIContent* aContent, DocAccessible* aDoc) :
|
|
AccessibleWrap(aContent, aDoc)
|
|
{
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED0(ARIAGridAccessible, Accessible)
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Table
|
|
|
|
uint32_t
|
|
ARIAGridAccessible::ColCount()
|
|
{
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
Accessible* row = rowIter.Next();
|
|
if (!row)
|
|
return 0;
|
|
|
|
AccIterator cellIter(row, filters::GetCell);
|
|
Accessible* cell = nullptr;
|
|
|
|
uint32_t colCount = 0;
|
|
while ((cell = cellIter.Next()))
|
|
colCount++;
|
|
|
|
return colCount;
|
|
}
|
|
|
|
uint32_t
|
|
ARIAGridAccessible::RowCount()
|
|
{
|
|
uint32_t rowCount = 0;
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
while (rowIter.Next())
|
|
rowCount++;
|
|
|
|
return rowCount;
|
|
}
|
|
|
|
Accessible*
|
|
ARIAGridAccessible::CellAt(uint32_t aRowIndex, uint32_t aColumnIndex)
|
|
{
|
|
Accessible* row = GetRowAt(aRowIndex);
|
|
if (!row)
|
|
return nullptr;
|
|
|
|
return GetCellInRowAt(row, aColumnIndex);
|
|
}
|
|
|
|
bool
|
|
ARIAGridAccessible::IsColSelected(uint32_t aColIdx)
|
|
{
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
Accessible* row = rowIter.Next();
|
|
if (!row)
|
|
return false;
|
|
|
|
do {
|
|
if (!nsAccUtils::IsARIASelected(row)) {
|
|
Accessible* cell = GetCellInRowAt(row, aColIdx);
|
|
if (!cell || !nsAccUtils::IsARIASelected(cell))
|
|
return false;
|
|
}
|
|
} while ((row = rowIter.Next()));
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ARIAGridAccessible::IsRowSelected(uint32_t aRowIdx)
|
|
{
|
|
Accessible* row = GetRowAt(aRowIdx);
|
|
if(!row)
|
|
return false;
|
|
|
|
if (!nsAccUtils::IsARIASelected(row)) {
|
|
AccIterator cellIter(row, filters::GetCell);
|
|
Accessible* cell = nullptr;
|
|
while ((cell = cellIter.Next())) {
|
|
if (!nsAccUtils::IsARIASelected(cell))
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ARIAGridAccessible::IsCellSelected(uint32_t aRowIdx, uint32_t aColIdx)
|
|
{
|
|
Accessible* row = GetRowAt(aRowIdx);
|
|
if(!row)
|
|
return false;
|
|
|
|
if (!nsAccUtils::IsARIASelected(row)) {
|
|
Accessible* cell = GetCellInRowAt(row, aColIdx);
|
|
if (!cell || !nsAccUtils::IsARIASelected(cell))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
uint32_t
|
|
ARIAGridAccessible::SelectedCellCount()
|
|
{
|
|
uint32_t count = 0, colCount = ColCount();
|
|
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
Accessible* row = nullptr;
|
|
|
|
while ((row = rowIter.Next())) {
|
|
if (nsAccUtils::IsARIASelected(row)) {
|
|
count += colCount;
|
|
continue;
|
|
}
|
|
|
|
AccIterator cellIter(row, filters::GetCell);
|
|
Accessible* cell = nullptr;
|
|
|
|
while ((cell = cellIter.Next())) {
|
|
if (nsAccUtils::IsARIASelected(cell))
|
|
count++;
|
|
}
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
uint32_t
|
|
ARIAGridAccessible::SelectedColCount()
|
|
{
|
|
uint32_t colCount = ColCount();
|
|
if (!colCount)
|
|
return 0;
|
|
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
Accessible* row = rowIter.Next();
|
|
if (!row)
|
|
return 0;
|
|
|
|
nsTArray<bool> isColSelArray(colCount);
|
|
isColSelArray.AppendElements(colCount);
|
|
memset(isColSelArray.Elements(), true, colCount * sizeof(bool));
|
|
|
|
uint32_t selColCount = colCount;
|
|
do {
|
|
if (nsAccUtils::IsARIASelected(row))
|
|
continue;
|
|
|
|
AccIterator cellIter(row, filters::GetCell);
|
|
Accessible* cell = nullptr;
|
|
for (uint32_t colIdx = 0;
|
|
(cell = cellIter.Next()) && colIdx < colCount; colIdx++)
|
|
if (isColSelArray[colIdx] && !nsAccUtils::IsARIASelected(cell)) {
|
|
isColSelArray[colIdx] = false;
|
|
selColCount--;
|
|
}
|
|
} while ((row = rowIter.Next()));
|
|
|
|
return selColCount;
|
|
}
|
|
|
|
uint32_t
|
|
ARIAGridAccessible::SelectedRowCount()
|
|
{
|
|
uint32_t count = 0;
|
|
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
Accessible* row = nullptr;
|
|
|
|
while ((row = rowIter.Next())) {
|
|
if (nsAccUtils::IsARIASelected(row)) {
|
|
count++;
|
|
continue;
|
|
}
|
|
|
|
AccIterator cellIter(row, filters::GetCell);
|
|
Accessible* cell = cellIter.Next();
|
|
if (!cell)
|
|
continue;
|
|
|
|
bool isRowSelected = true;
|
|
do {
|
|
if (!nsAccUtils::IsARIASelected(cell)) {
|
|
isRowSelected = false;
|
|
break;
|
|
}
|
|
} while ((cell = cellIter.Next()));
|
|
|
|
if (isRowSelected)
|
|
count++;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
void
|
|
ARIAGridAccessible::SelectedCells(nsTArray<Accessible*>* aCells)
|
|
{
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
|
|
Accessible* row = nullptr;
|
|
while ((row = rowIter.Next())) {
|
|
AccIterator cellIter(row, filters::GetCell);
|
|
Accessible* cell = nullptr;
|
|
|
|
if (nsAccUtils::IsARIASelected(row)) {
|
|
while ((cell = cellIter.Next()))
|
|
aCells->AppendElement(cell);
|
|
|
|
continue;
|
|
}
|
|
|
|
while ((cell = cellIter.Next())) {
|
|
if (nsAccUtils::IsARIASelected(cell))
|
|
aCells->AppendElement(cell);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
ARIAGridAccessible::SelectedCellIndices(nsTArray<uint32_t>* aCells)
|
|
{
|
|
uint32_t colCount = ColCount();
|
|
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
Accessible* row = nullptr;
|
|
for (uint32_t rowIdx = 0; (row = rowIter.Next()); rowIdx++) {
|
|
if (nsAccUtils::IsARIASelected(row)) {
|
|
for (uint32_t colIdx = 0; colIdx < colCount; colIdx++)
|
|
aCells->AppendElement(rowIdx * colCount + colIdx);
|
|
|
|
continue;
|
|
}
|
|
|
|
AccIterator cellIter(row, filters::GetCell);
|
|
Accessible* cell = nullptr;
|
|
for (uint32_t colIdx = 0; (cell = cellIter.Next()); colIdx++) {
|
|
if (nsAccUtils::IsARIASelected(cell))
|
|
aCells->AppendElement(rowIdx * colCount + colIdx);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
ARIAGridAccessible::SelectedColIndices(nsTArray<uint32_t>* aCols)
|
|
{
|
|
uint32_t colCount = ColCount();
|
|
if (!colCount)
|
|
return;
|
|
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
Accessible* row = rowIter.Next();
|
|
if (!row)
|
|
return;
|
|
|
|
nsTArray<bool> isColSelArray(colCount);
|
|
isColSelArray.AppendElements(colCount);
|
|
memset(isColSelArray.Elements(), true, colCount * sizeof(bool));
|
|
|
|
do {
|
|
if (nsAccUtils::IsARIASelected(row))
|
|
continue;
|
|
|
|
AccIterator cellIter(row, filters::GetCell);
|
|
Accessible* cell = nullptr;
|
|
for (uint32_t colIdx = 0;
|
|
(cell = cellIter.Next()) && colIdx < colCount; colIdx++)
|
|
if (isColSelArray[colIdx] && !nsAccUtils::IsARIASelected(cell)) {
|
|
isColSelArray[colIdx] = false;
|
|
}
|
|
} while ((row = rowIter.Next()));
|
|
|
|
for (uint32_t colIdx = 0; colIdx < colCount; colIdx++)
|
|
if (isColSelArray[colIdx])
|
|
aCols->AppendElement(colIdx);
|
|
}
|
|
|
|
void
|
|
ARIAGridAccessible::SelectedRowIndices(nsTArray<uint32_t>* aRows)
|
|
{
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
Accessible* row = nullptr;
|
|
for (uint32_t rowIdx = 0; (row = rowIter.Next()); rowIdx++) {
|
|
if (nsAccUtils::IsARIASelected(row)) {
|
|
aRows->AppendElement(rowIdx);
|
|
continue;
|
|
}
|
|
|
|
AccIterator cellIter(row, filters::GetCell);
|
|
Accessible* cell = cellIter.Next();
|
|
if (!cell)
|
|
continue;
|
|
|
|
bool isRowSelected = true;
|
|
do {
|
|
if (!nsAccUtils::IsARIASelected(cell)) {
|
|
isRowSelected = false;
|
|
break;
|
|
}
|
|
} while ((cell = cellIter.Next()));
|
|
|
|
if (isRowSelected)
|
|
aRows->AppendElement(rowIdx);
|
|
}
|
|
}
|
|
|
|
void
|
|
ARIAGridAccessible::SelectRow(uint32_t aRowIdx)
|
|
{
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
|
|
Accessible* row = nullptr;
|
|
for (uint32_t rowIdx = 0; (row = rowIter.Next()); rowIdx++) {
|
|
DebugOnly<nsresult> rv = SetARIASelected(row, rowIdx == aRowIdx);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "SetARIASelected() Shouldn't fail!");
|
|
}
|
|
}
|
|
|
|
void
|
|
ARIAGridAccessible::SelectCol(uint32_t aColIdx)
|
|
{
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
|
|
Accessible* row = nullptr;
|
|
while ((row = rowIter.Next())) {
|
|
// Unselect all cells in the row.
|
|
DebugOnly<nsresult> rv = SetARIASelected(row, false);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "SetARIASelected() Shouldn't fail!");
|
|
|
|
// Select cell at the column index.
|
|
Accessible* cell = GetCellInRowAt(row, aColIdx);
|
|
if (cell)
|
|
SetARIASelected(cell, true);
|
|
}
|
|
}
|
|
|
|
void
|
|
ARIAGridAccessible::UnselectRow(uint32_t aRowIdx)
|
|
{
|
|
Accessible* row = GetRowAt(aRowIdx);
|
|
|
|
if (row)
|
|
SetARIASelected(row, false);
|
|
}
|
|
|
|
void
|
|
ARIAGridAccessible::UnselectCol(uint32_t aColIdx)
|
|
{
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
|
|
Accessible* row = nullptr;
|
|
while ((row = rowIter.Next())) {
|
|
Accessible* cell = GetCellInRowAt(row, aColIdx);
|
|
if (cell)
|
|
SetARIASelected(cell, false);
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Protected
|
|
|
|
Accessible*
|
|
ARIAGridAccessible::GetRowAt(int32_t aRow)
|
|
{
|
|
int32_t rowIdx = aRow;
|
|
|
|
AccIterator rowIter(this, filters::GetRow);
|
|
|
|
Accessible* row = rowIter.Next();
|
|
while (rowIdx != 0 && (row = rowIter.Next()))
|
|
rowIdx--;
|
|
|
|
return row;
|
|
}
|
|
|
|
Accessible*
|
|
ARIAGridAccessible::GetCellInRowAt(Accessible* aRow, int32_t aColumn)
|
|
{
|
|
int32_t colIdx = aColumn;
|
|
|
|
AccIterator cellIter(aRow, filters::GetCell);
|
|
Accessible* cell = cellIter.Next();
|
|
while (colIdx != 0 && (cell = cellIter.Next()))
|
|
colIdx--;
|
|
|
|
return cell;
|
|
}
|
|
|
|
nsresult
|
|
ARIAGridAccessible::SetARIASelected(Accessible* aAccessible,
|
|
bool aIsSelected, bool aNotify)
|
|
{
|
|
nsIContent *content = aAccessible->GetContent();
|
|
NS_ENSURE_STATE(content);
|
|
|
|
nsresult rv = NS_OK;
|
|
if (aIsSelected)
|
|
rv = content->SetAttr(kNameSpaceID_None, nsGkAtoms::aria_selected,
|
|
NS_LITERAL_STRING("true"), aNotify);
|
|
else
|
|
rv = content->SetAttr(kNameSpaceID_None, nsGkAtoms::aria_selected,
|
|
NS_LITERAL_STRING("false"), aNotify);
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// No "smart" select/unselect for internal call.
|
|
if (!aNotify)
|
|
return NS_OK;
|
|
|
|
// If row or cell accessible was selected then we're able to not bother about
|
|
// selection of its cells or its row because our algorithm is row oriented,
|
|
// i.e. we check selection on row firstly and then on cells.
|
|
if (aIsSelected)
|
|
return NS_OK;
|
|
|
|
roles::Role role = aAccessible->Role();
|
|
|
|
// If the given accessible is row that was unselected then remove
|
|
// aria-selected from cell accessible.
|
|
if (role == roles::ROW) {
|
|
AccIterator cellIter(aAccessible, filters::GetCell);
|
|
Accessible* cell = nullptr;
|
|
|
|
while ((cell = cellIter.Next())) {
|
|
rv = SetARIASelected(cell, false, false);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// If the given accessible is cell that was unselected and its row is selected
|
|
// then remove aria-selected from row and put aria-selected on
|
|
// siblings cells.
|
|
if (role == roles::GRID_CELL || role == roles::ROWHEADER ||
|
|
role == roles::COLUMNHEADER) {
|
|
Accessible* row = aAccessible->Parent();
|
|
|
|
if (row && row->Role() == roles::ROW &&
|
|
nsAccUtils::IsARIASelected(row)) {
|
|
rv = SetARIASelected(row, false, false);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
AccIterator cellIter(row, filters::GetCell);
|
|
Accessible* cell = nullptr;
|
|
while ((cell = cellIter.Next())) {
|
|
if (cell != aAccessible) {
|
|
rv = SetARIASelected(cell, true, false);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// ARIAGridCellAccessible
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Constructor
|
|
|
|
ARIAGridCellAccessible::
|
|
ARIAGridCellAccessible(nsIContent* aContent, DocAccessible* aDoc) :
|
|
HyperTextAccessibleWrap(aContent, aDoc)
|
|
{
|
|
mGenericTypes |= eTableCell;
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED0(ARIAGridCellAccessible, HyperTextAccessible)
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// TableCell
|
|
|
|
TableAccessible*
|
|
ARIAGridCellAccessible::Table() const
|
|
{
|
|
Accessible* table = TableFor(Row());
|
|
return table ? table->AsTable() : nullptr;
|
|
}
|
|
|
|
uint32_t
|
|
ARIAGridCellAccessible::ColIdx() const
|
|
{
|
|
Accessible* row = Row();
|
|
if (!row)
|
|
return 0;
|
|
|
|
int32_t indexInRow = IndexInParent();
|
|
uint32_t colIdx = 0;
|
|
for (int32_t idx = 0; idx < indexInRow; idx++) {
|
|
Accessible* cell = row->GetChildAt(idx);
|
|
roles::Role role = cell->Role();
|
|
if (role == roles::GRID_CELL || role == roles::ROWHEADER ||
|
|
role == roles::COLUMNHEADER)
|
|
colIdx++;
|
|
}
|
|
|
|
return colIdx;
|
|
}
|
|
|
|
uint32_t
|
|
ARIAGridCellAccessible::RowIdx() const
|
|
{
|
|
return RowIndexFor(Row());
|
|
}
|
|
|
|
bool
|
|
ARIAGridCellAccessible::Selected()
|
|
{
|
|
Accessible* row = Row();
|
|
if (!row)
|
|
return false;
|
|
|
|
return nsAccUtils::IsARIASelected(row) || nsAccUtils::IsARIASelected(this);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Accessible
|
|
|
|
void
|
|
ARIAGridCellAccessible::ApplyARIAState(uint64_t* aState) const
|
|
{
|
|
HyperTextAccessibleWrap::ApplyARIAState(aState);
|
|
|
|
// Return if the gridcell has aria-selected="true".
|
|
if (*aState & states::SELECTED)
|
|
return;
|
|
|
|
// Check aria-selected="true" on the row.
|
|
Accessible* row = Parent();
|
|
if (!row || row->Role() != roles::ROW)
|
|
return;
|
|
|
|
nsIContent *rowContent = row->GetContent();
|
|
if (nsAccUtils::HasDefinedARIAToken(rowContent,
|
|
nsGkAtoms::aria_selected) &&
|
|
!rowContent->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::aria_selected,
|
|
nsGkAtoms::_false, eCaseMatters))
|
|
*aState |= states::SELECTABLE | states::SELECTED;
|
|
}
|
|
|
|
already_AddRefed<nsIPersistentProperties>
|
|
ARIAGridCellAccessible::NativeAttributes()
|
|
{
|
|
nsCOMPtr<nsIPersistentProperties> attributes =
|
|
HyperTextAccessibleWrap::NativeAttributes();
|
|
|
|
// Expose "table-cell-index" attribute.
|
|
Accessible* thisRow = Row();
|
|
if (!thisRow)
|
|
return attributes.forget();
|
|
|
|
int32_t colIdx = 0, colCount = 0;
|
|
uint32_t childCount = thisRow->ChildCount();
|
|
for (uint32_t childIdx = 0; childIdx < childCount; childIdx++) {
|
|
Accessible* child = thisRow->GetChildAt(childIdx);
|
|
if (child == this)
|
|
colIdx = colCount;
|
|
|
|
roles::Role role = child->Role();
|
|
if (role == roles::GRID_CELL || role == roles::ROWHEADER ||
|
|
role == roles::COLUMNHEADER)
|
|
colCount++;
|
|
}
|
|
|
|
int32_t rowIdx = RowIndexFor(thisRow);
|
|
|
|
nsAutoString stringIdx;
|
|
stringIdx.AppendInt(rowIdx * colCount + colIdx);
|
|
nsAccUtils::SetAccAttr(attributes, nsGkAtoms::tableCellIndex, stringIdx);
|
|
|
|
#ifdef DEBUG
|
|
nsAutoString unused;
|
|
attributes->SetStringProperty(NS_LITERAL_CSTRING("cppclass"),
|
|
NS_LITERAL_STRING("ARIAGridCellAccessible"),
|
|
unused);
|
|
#endif
|
|
|
|
return attributes.forget();
|
|
}
|