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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=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
#include "ia2AccessibleTable.h"
#include "Accessible2.h"
#include "AccessibleTable_i.c"
#include "AccessibleTable2_i.c"
#include "IUnknownImpl.h"
#include "mozilla/a11y/Accessible.h"
#include "mozilla/a11y/TableAccessible.h"
#include "nsCOMPtr.h"
#include "nsString.h"
#include "Statistics.h"
using namespace mozilla::a11y;
TableAccessible* ia2AccessibleTable::TableAcc() {
Accessible* acc = MsaaAccessible::Acc();
return acc ? acc->AsTable() : nullptr;
}
// IUnknown
STDMETHODIMP
ia2AccessibleTable::QueryInterface(REFIID iid, void** ppv) {
if (!ppv) return E_INVALIDARG;
*ppv = nullptr;
if (IID_IAccessibleTable == iid) {
statistics::IAccessibleTableUsed();
*ppv = static_cast<IAccessibleTable*>(this);
(reinterpret_cast<IUnknown*>(*ppv))->AddRef();
return S_OK;
}
if (IID_IAccessibleTable2 == iid) {
*ppv = static_cast<IAccessibleTable2*>(this);
(reinterpret_cast<IUnknown*>(*ppv))->AddRef();
return S_OK;
}
if (IID_IGridProvider == iid) {
*ppv = static_cast<IGridProvider*>(this);
(reinterpret_cast<IUnknown*>(*ppv))->AddRef();
return S_OK;
}
if (IID_ITableProvider == iid) {
*ppv = static_cast<ITableProvider*>(this);
(reinterpret_cast<IUnknown*>(*ppv))->AddRef();
return S_OK;
}
return ia2AccessibleHypertext::QueryInterface(iid, ppv);
}
////////////////////////////////////////////////////////////////////////////////
// IAccessibleTable
STDMETHODIMP
ia2AccessibleTable::get_accessibleAt(long aRowIdx, long aColIdx,
IUnknown** aAccessible) {
return get_cellAt(aRowIdx, aColIdx, aAccessible);
}
STDMETHODIMP
ia2AccessibleTable::get_caption(IUnknown** aAccessible) {
if (!aAccessible) return E_INVALIDARG;
*aAccessible = nullptr;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
Accessible* caption = table->Caption();
if (!caption) return S_FALSE;
RefPtr<IAccessible> result = MsaaAccessible::GetFrom(caption);
result.forget(aAccessible);
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_childIndex(long aRowIdx, long aColIdx,
long* aChildIdx) {
if (!aChildIdx) return E_INVALIDARG;
*aChildIdx = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
if (aRowIdx < 0 || aColIdx < 0 ||
static_cast<uint32_t>(aRowIdx) >= table->RowCount() ||
static_cast<uint32_t>(aColIdx) >= table->ColCount())
return E_INVALIDARG;
*aChildIdx = table->CellIndexAt(aRowIdx, aColIdx);
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_columnDescription(long aColIdx, BSTR* aDescription) {
if (!aDescription) return E_INVALIDARG;
*aDescription = nullptr;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= table->ColCount())
return E_INVALIDARG;
nsAutoString descr;
table->ColDescription(aColIdx, descr);
if (descr.IsEmpty()) return S_FALSE;
*aDescription = ::SysAllocStringLen(descr.get(), descr.Length());
return *aDescription ? S_OK : E_OUTOFMEMORY;
}
STDMETHODIMP
ia2AccessibleTable::get_columnExtentAt(long aRowIdx, long aColIdx,
long* aSpan) {
if (!aSpan) return E_INVALIDARG;
*aSpan = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
if (aRowIdx < 0 || aColIdx < 0 ||
static_cast<uint32_t>(aRowIdx) >= table->RowCount() ||
static_cast<uint32_t>(aColIdx) >= table->ColCount())
return E_INVALIDARG;
*aSpan = table->ColExtentAt(aRowIdx, aColIdx);
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_columnHeader(IAccessibleTable** aAccessibleTable,
long* aStartingRowIndex) {
if (!aAccessibleTable || !aStartingRowIndex) return E_INVALIDARG;
*aAccessibleTable = nullptr;
*aStartingRowIndex = -1;
return E_NOTIMPL;
}
STDMETHODIMP
ia2AccessibleTable::get_columnIndex(long aCellIdx, long* aColIdx) {
if (!aColIdx) return E_INVALIDARG;
*aColIdx = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
if (aCellIdx < 0) {
return E_INVALIDARG;
}
long colIdx = table->ColIndexAt(aCellIdx);
if (colIdx == -1) { // Indicates an error.
return E_INVALIDARG;
}
*aColIdx = colIdx;
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_nColumns(long* aColCount) {
if (!aColCount) return E_INVALIDARG;
*aColCount = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
*aColCount = table->ColCount();
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_nRows(long* aRowCount) {
if (!aRowCount) return E_INVALIDARG;
*aRowCount = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
*aRowCount = table->RowCount();
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_nSelectedChildren(long* aChildCount) {
return get_nSelectedCells(aChildCount);
}
STDMETHODIMP
ia2AccessibleTable::get_nSelectedColumns(long* aColCount) {
if (!aColCount) return E_INVALIDARG;
*aColCount = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
*aColCount = table->SelectedColCount();
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_nSelectedRows(long* aRowCount) {
if (!aRowCount) return E_INVALIDARG;
*aRowCount = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
*aRowCount = table->SelectedRowCount();
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_rowDescription(long aRowIdx, BSTR* aDescription) {
if (!aDescription) return E_INVALIDARG;
*aDescription = nullptr;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= table->RowCount())
return E_INVALIDARG;
nsAutoString descr;
table->RowDescription(aRowIdx, descr);
if (descr.IsEmpty()) return S_FALSE;
*aDescription = ::SysAllocStringLen(descr.get(), descr.Length());
return *aDescription ? S_OK : E_OUTOFMEMORY;
}
STDMETHODIMP
ia2AccessibleTable::get_rowExtentAt(long aRowIdx, long aColIdx, long* aSpan) {
if (!aSpan) return E_INVALIDARG;
*aSpan = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
if (aRowIdx < 0 || aColIdx < 0 ||
static_cast<uint32_t>(aRowIdx) >= table->RowCount() ||
static_cast<uint32_t>(aColIdx) >= table->ColCount())
return E_INVALIDARG;
*aSpan = table->RowExtentAt(aRowIdx, aColIdx);
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_rowHeader(IAccessibleTable** aAccessibleTable,
long* aStartingColumnIndex) {
if (!aAccessibleTable || !aStartingColumnIndex) return E_INVALIDARG;
*aAccessibleTable = nullptr;
*aStartingColumnIndex = -1;
return E_NOTIMPL;
}
STDMETHODIMP
ia2AccessibleTable::get_rowIndex(long aCellIdx, long* aRowIdx) {
if (!aRowIdx) return E_INVALIDARG;
*aRowIdx = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
if (aCellIdx < 0) {
return E_INVALIDARG;
}
long rowIdx = table->RowIndexAt(aCellIdx);
if (rowIdx == -1) { // Indicates an error.
return E_INVALIDARG;
}
*aRowIdx = rowIdx;
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_selectedChildren(long aMaxChildren, long** aChildren,
long* aNChildren) {
if (!aChildren || !aNChildren) return E_INVALIDARG;
*aChildren = nullptr;
*aNChildren = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
AutoTArray<uint32_t, 30> cellIndices;
table->SelectedCellIndices(&cellIndices);
uint32_t maxCells = cellIndices.Length();
if (maxCells == 0) return S_FALSE;
*aChildren = static_cast<LONG*>(moz_xmalloc(sizeof(LONG) * maxCells));
*aNChildren = maxCells;
for (uint32_t i = 0; i < maxCells; i++) (*aChildren)[i] = cellIndices[i];
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_selectedColumns(long aMaxColumns, long** aColumns,
long* aNColumns) {
return get_selectedColumns(aColumns, aNColumns);
}
STDMETHODIMP
ia2AccessibleTable::get_selectedRows(long aMaxRows, long** aRows,
long* aNRows) {
return get_selectedRows(aRows, aNRows);
}
STDMETHODIMP
ia2AccessibleTable::get_summary(IUnknown** aAccessible) {
if (!aAccessible) return E_INVALIDARG;
// Neither html:table nor xul:tree nor ARIA grid/tree have an ability to
// link an accessible object to specify a summary. There is closes method
// in Table::summary to get a summary as a string which is not mapped
// directly to IAccessible2.
*aAccessible = nullptr;
return S_FALSE;
}
STDMETHODIMP
ia2AccessibleTable::get_isColumnSelected(long aColIdx, boolean* aIsSelected) {
if (!aIsSelected) return E_INVALIDARG;
*aIsSelected = false;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= table->ColCount())
return E_INVALIDARG;
*aIsSelected = table->IsColSelected(aColIdx);
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_isRowSelected(long aRowIdx, boolean* aIsSelected) {
if (!aIsSelected) return E_INVALIDARG;
*aIsSelected = false;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= table->RowCount())
return E_INVALIDARG;
*aIsSelected = table->IsRowSelected(aRowIdx);
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_isSelected(long aRowIdx, long aColIdx,
boolean* aIsSelected) {
if (!aIsSelected) return E_INVALIDARG;
*aIsSelected = false;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
if (aRowIdx < 0 || aColIdx < 0 ||
static_cast<uint32_t>(aColIdx) >= table->ColCount() ||
static_cast<uint32_t>(aRowIdx) >= table->RowCount())
return E_INVALIDARG;
*aIsSelected = table->IsCellSelected(aRowIdx, aColIdx);
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::selectRow(long aRowIdx) { return E_NOTIMPL; }
STDMETHODIMP
ia2AccessibleTable::selectColumn(long aColIdx) { return E_NOTIMPL; }
STDMETHODIMP
ia2AccessibleTable::unselectRow(long aRowIdx) { return E_NOTIMPL; }
STDMETHODIMP
ia2AccessibleTable::unselectColumn(long aColIdx) { return E_NOTIMPL; }
STDMETHODIMP
ia2AccessibleTable::get_rowColumnExtentsAtIndex(long aCellIdx, long* aRowIdx,
long* aColIdx,
long* aRowExtents,
long* aColExtents,
boolean* aIsSelected) {
if (!aRowIdx || !aColIdx || !aRowExtents || !aColExtents || !aIsSelected)
return E_INVALIDARG;
*aRowIdx = 0;
*aColIdx = 0;
*aRowExtents = 0;
*aColExtents = 0;
*aIsSelected = false;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
if (aCellIdx < 0) {
return E_INVALIDARG;
}
int32_t colIdx = 0, rowIdx = 0;
table->RowAndColIndicesAt(aCellIdx, &rowIdx, &colIdx);
if (rowIdx == -1 || colIdx == -1) { // Indicates an error.
return E_INVALIDARG;
}
*aRowIdx = rowIdx;
*aColIdx = colIdx;
*aRowExtents = table->RowExtentAt(rowIdx, colIdx);
*aColExtents = table->ColExtentAt(rowIdx, colIdx);
*aIsSelected = table->IsCellSelected(rowIdx, colIdx);
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_modelChange(IA2TableModelChange* aModelChange) {
return E_NOTIMPL;
}
////////////////////////////////////////////////////////////////////////////////
// IAccessibleTable2
STDMETHODIMP
ia2AccessibleTable::get_cellAt(long aRowIdx, long aColIdx, IUnknown** aCell) {
if (!aCell) return E_INVALIDARG;
*aCell = nullptr;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
Accessible* cell = table->CellAt(aRowIdx, aColIdx);
if (!cell) return E_INVALIDARG;
RefPtr<IAccessible> result = MsaaAccessible::GetFrom(cell);
result.forget(aCell);
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_nSelectedCells(long* aCellCount) {
if (!aCellCount) return E_INVALIDARG;
*aCellCount = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
*aCellCount = table->SelectedCellCount();
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_selectedCells(IUnknown*** aCells,
long* aNSelectedCells) {
if (!aCells || !aNSelectedCells) return E_INVALIDARG;
*aCells = nullptr;
*aNSelectedCells = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
AutoTArray<Accessible*, 30> cells;
table->SelectedCells(&cells);
if (cells.IsEmpty()) return S_FALSE;
*aCells = static_cast<IUnknown**>(
::CoTaskMemAlloc(sizeof(IUnknown*) * cells.Length()));
if (!*aCells) return E_OUTOFMEMORY;
for (uint32_t i = 0; i < cells.Length(); i++) {
RefPtr<IAccessible> cell = MsaaAccessible::GetFrom(cells[i]);
cell.forget(&(*aCells)[i]);
}
*aNSelectedCells = cells.Length();
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_selectedColumns(long** aColumns, long* aNColumns) {
if (!aColumns || !aNColumns) return E_INVALIDARG;
*aColumns = nullptr;
*aNColumns = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
AutoTArray<uint32_t, 30> colIndices;
table->SelectedColIndices(&colIndices);
uint32_t maxCols = colIndices.Length();
if (maxCols == 0) return S_FALSE;
*aColumns = static_cast<LONG*>(moz_xmalloc(sizeof(LONG) * maxCols));
*aNColumns = maxCols;
for (uint32_t i = 0; i < maxCols; i++) (*aColumns)[i] = colIndices[i];
return S_OK;
}
STDMETHODIMP
ia2AccessibleTable::get_selectedRows(long** aRows, long* aNRows) {
if (!aRows || !aNRows) return E_INVALIDARG;
*aRows = nullptr;
*aNRows = 0;
TableAccessible* table = TableAcc();
if (!table) return CO_E_OBJNOTCONNECTED;
AutoTArray<uint32_t, 30> rowIndices;
table->SelectedRowIndices(&rowIndices);
uint32_t maxRows = rowIndices.Length();
if (maxRows == 0) return S_FALSE;
*aRows = static_cast<LONG*>(moz_xmalloc(sizeof(LONG) * maxRows));
*aNRows = maxRows;
for (uint32_t i = 0; i < maxRows; i++) (*aRows)[i] = rowIndices[i];
return S_OK;
}