michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:expandtab:shiftwidth=2:tabstop=2:
michael@0:  */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "ia2AccessibleTable.h"
michael@0: 
michael@0: #include "Accessible2.h"
michael@0: #include "AccessibleTable_i.c"
michael@0: #include "AccessibleTable2_i.c"
michael@0: 
michael@0: #include "AccessibleWrap.h"
michael@0: #include "IUnknownImpl.h"
michael@0: #include "Statistics.h"
michael@0: #include "TableAccessible.h"
michael@0: 
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsString.h"
michael@0: 
michael@0: using namespace mozilla::a11y;
michael@0: 
michael@0: // IUnknown
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::QueryInterface(REFIID iid, void** ppv)
michael@0: {
michael@0:   if (!ppv)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *ppv = nullptr;
michael@0: 
michael@0:   if (IID_IAccessibleTable == iid) {
michael@0:     statistics::IAccessibleTableUsed();
michael@0:     *ppv = static_cast<IAccessibleTable*>(this);
michael@0:     (reinterpret_cast<IUnknown*>(*ppv))->AddRef();
michael@0:     return S_OK;
michael@0:   }
michael@0: 
michael@0:   if (IID_IAccessibleTable2 == iid) {
michael@0:     *ppv = static_cast<IAccessibleTable2*>(this);
michael@0:     (reinterpret_cast<IUnknown*>(*ppv))->AddRef();
michael@0:     return S_OK;
michael@0:   }
michael@0: 
michael@0:   return E_NOINTERFACE;
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // IAccessibleTable
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_accessibleAt(long aRowIdx, long aColIdx,
michael@0:                                      IUnknown** aAccessible)
michael@0: {
michael@0:   return get_cellAt(aRowIdx, aColIdx, aAccessible);
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_caption(IUnknown** aAccessible)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aAccessible)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aAccessible = nullptr;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   AccessibleWrap* caption = static_cast<AccessibleWrap*>(mTable->Caption());
michael@0:   if (!caption)
michael@0:     return S_FALSE;
michael@0: 
michael@0:   (*aAccessible = static_cast<IAccessible*>(caption))->AddRef();
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_childIndex(long aRowIdx, long aColIdx,
michael@0:                                    long* aChildIdx)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aChildIdx)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aChildIdx = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aRowIdx < 0 || aColIdx < 0 ||
michael@0:       static_cast<uint32_t>(aRowIdx) >= mTable->RowCount() ||
michael@0:       static_cast<uint32_t>(aColIdx) >= mTable->ColCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aChildIdx = mTable->CellIndexAt(aRowIdx, aColIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_columnDescription(long aColIdx, BSTR* aDescription)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aDescription)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aDescription = nullptr;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= mTable->ColCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   nsAutoString descr;
michael@0:   mTable->ColDescription(aColIdx, descr);
michael@0:   if (descr.IsEmpty())
michael@0:     return S_FALSE;
michael@0: 
michael@0:   *aDescription = ::SysAllocStringLen(descr.get(), descr.Length());
michael@0:   return *aDescription ? S_OK : E_OUTOFMEMORY;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_columnExtentAt(long aRowIdx, long aColIdx,
michael@0:                                       long* aSpan)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aSpan)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aSpan = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aRowIdx < 0 || aColIdx < 0 ||
michael@0:       static_cast<uint32_t>(aRowIdx) >= mTable->RowCount() ||
michael@0:       static_cast<uint32_t>(aColIdx) >= mTable->ColCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aSpan = mTable->ColExtentAt(aRowIdx, aColIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_columnHeader(IAccessibleTable** aAccessibleTable,
michael@0:                                     long* aStartingRowIndex)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aAccessibleTable || !aStartingRowIndex)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aAccessibleTable = nullptr;
michael@0:   *aStartingRowIndex = -1;
michael@0:   return E_NOTIMPL;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_columnIndex(long aCellIdx, long* aColIdx)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aColIdx)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aColIdx = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aCellIdx < 0 ||
michael@0:       static_cast<uint32_t>(aCellIdx) >= mTable->ColCount() * mTable->RowCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aColIdx = mTable->ColIndexAt(aCellIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_nColumns(long* aColCount)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aColCount)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aColCount = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   *aColCount = mTable->ColCount();
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_nRows(long* aRowCount)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aRowCount)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aRowCount = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   *aRowCount = mTable->RowCount();
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_nSelectedChildren(long* aChildCount)
michael@0: {
michael@0:   return get_nSelectedCells(aChildCount);
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_nSelectedColumns(long* aColCount)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aColCount)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aColCount = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   *aColCount = mTable->SelectedColCount();
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_nSelectedRows(long* aRowCount)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aRowCount)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aRowCount = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   *aRowCount = mTable->SelectedRowCount();
michael@0: 
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_rowDescription(long aRowIdx, BSTR* aDescription)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aDescription)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aDescription = nullptr;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= mTable->RowCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   nsAutoString descr;
michael@0:   mTable->RowDescription(aRowIdx, descr);
michael@0:   if (descr.IsEmpty())
michael@0:     return S_FALSE;
michael@0: 
michael@0:   *aDescription = ::SysAllocStringLen(descr.get(), descr.Length());
michael@0:   return *aDescription ? S_OK : E_OUTOFMEMORY;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_rowExtentAt(long aRowIdx, long aColIdx, long* aSpan)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aSpan)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aSpan = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aRowIdx < 0 || aColIdx < 0 ||
michael@0:       static_cast<uint32_t>(aRowIdx) >= mTable->RowCount() ||
michael@0:       static_cast<uint32_t>(aColIdx) >= mTable->ColCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aSpan = mTable->RowExtentAt(aRowIdx, aColIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_rowHeader(IAccessibleTable** aAccessibleTable,
michael@0:                                   long* aStartingColumnIndex)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aAccessibleTable || !aStartingColumnIndex)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aAccessibleTable = nullptr;
michael@0:   *aStartingColumnIndex = -1;
michael@0:   return E_NOTIMPL;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_rowIndex(long aCellIdx, long* aRowIdx)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aRowIdx)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aRowIdx = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aCellIdx < 0 ||
michael@0:       static_cast<uint32_t>(aCellIdx) >= mTable->ColCount() * mTable->RowCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aRowIdx = mTable->RowIndexAt(aCellIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_selectedChildren(long aMaxChildren, long** aChildren,
michael@0:                                          long* aNChildren)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aChildren || !aNChildren)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aChildren = nullptr;
michael@0:   *aNChildren = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   nsAutoTArray<uint32_t, 30> cellIndices;
michael@0:   mTable->SelectedCellIndices(&cellIndices);
michael@0: 
michael@0:   uint32_t maxCells = cellIndices.Length();
michael@0:   if (maxCells == 0)
michael@0:     return S_FALSE;
michael@0: 
michael@0:   *aChildren = static_cast<LONG*>(moz_xmalloc(sizeof(LONG) * maxCells));
michael@0:   *aNChildren = maxCells;
michael@0:   for (uint32_t i = 0; i < maxCells; i++)
michael@0:     (*aChildren)[i] = cellIndices[i];
michael@0: 
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_selectedColumns(long aMaxColumns, long** aColumns,
michael@0:                                         long* aNColumns)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   return get_selectedColumns(aColumns, aNColumns);
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_selectedRows(long aMaxRows, long** aRows, long* aNRows)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   return get_selectedRows(aRows, aNRows);
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_summary(IUnknown** aAccessible)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aAccessible)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   // Neither html:table nor xul:tree nor ARIA grid/tree have an ability to
michael@0:   // link an accessible object to specify a summary. There is closes method
michael@0:   // in nsIAccessibleTable::summary to get a summary as a string which is not
michael@0:   // mapped directly to IAccessible2.
michael@0: 
michael@0:   *aAccessible = nullptr;
michael@0:   return S_FALSE;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_isColumnSelected(long aColIdx, boolean* aIsSelected)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aIsSelected)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aIsSelected = false;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= mTable->ColCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aIsSelected = mTable->IsColSelected(aColIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_isRowSelected(long aRowIdx, boolean* aIsSelected)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aIsSelected)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aIsSelected = false;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= mTable->RowCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aIsSelected = mTable->IsRowSelected(aRowIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_isSelected(long aRowIdx, long aColIdx,
michael@0:                                    boolean* aIsSelected)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aIsSelected)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aIsSelected = false;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aRowIdx < 0 || aColIdx < 0 ||
michael@0:       static_cast<uint32_t>(aColIdx) >= mTable->ColCount() ||
michael@0:       static_cast<uint32_t>(aRowIdx) >= mTable->RowCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aIsSelected = mTable->IsCellSelected(aRowIdx, aColIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::selectRow(long aRowIdx)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= mTable->RowCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   mTable->SelectRow(aRowIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::selectColumn(long aColIdx)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= mTable->ColCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   mTable->SelectCol(aColIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::unselectRow(long aRowIdx)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= mTable->RowCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   mTable->UnselectRow(aRowIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::unselectColumn(long aColIdx)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= mTable->ColCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   mTable->UnselectCol(aColIdx);
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_rowColumnExtentsAtIndex(long aCellIdx, long* aRowIdx,
michael@0:                                                 long* aColIdx,
michael@0:                                                 long* aRowExtents,
michael@0:                                                 long* aColExtents,
michael@0:                                                 boolean* aIsSelected)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aRowIdx || !aColIdx || !aRowExtents || !aColExtents || !aIsSelected)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aRowIdx = 0;
michael@0:   *aColIdx = 0;
michael@0:   *aRowExtents = 0;
michael@0:   *aColExtents = 0;
michael@0:   *aIsSelected = false;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   if (aCellIdx < 0 ||
michael@0:       static_cast<uint32_t>(aCellIdx) >= mTable->ColCount() * mTable->RowCount())
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   int32_t colIdx = 0, rowIdx = 0;
michael@0:   mTable->RowAndColIndicesAt(aCellIdx, &rowIdx, &colIdx);
michael@0:   *aRowIdx = rowIdx;
michael@0:   *aColIdx = colIdx;
michael@0:   *aRowExtents = mTable->RowExtentAt(rowIdx, colIdx);
michael@0:   *aColExtents = mTable->ColExtentAt(rowIdx, colIdx);
michael@0:   *aIsSelected = mTable->IsCellSelected(rowIdx, colIdx);
michael@0: 
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_modelChange(IA2TableModelChange* aModelChange)
michael@0: {
michael@0:   return E_NOTIMPL;
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // IAccessibleTable2
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_cellAt(long aRowIdx, long aColIdx, IUnknown** aCell)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aCell)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aCell = nullptr;
michael@0: 
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   AccessibleWrap* cell =
michael@0:     static_cast<AccessibleWrap*>(mTable->CellAt(aRowIdx, aColIdx));
michael@0:   if (!cell)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   (*aCell = static_cast<IAccessible*>(cell))->AddRef();
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_nSelectedCells(long* aCellCount)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aCellCount)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aCellCount = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   *aCellCount = mTable->SelectedCellCount();
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_selectedCells(IUnknown*** aCells, long* aNSelectedCells)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aCells || !aNSelectedCells)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aCells = nullptr;
michael@0:   *aNSelectedCells = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   nsAutoTArray<Accessible*, 30> cells;
michael@0:   mTable->SelectedCells(&cells);
michael@0:   if (cells.IsEmpty())
michael@0:     return S_FALSE;
michael@0: 
michael@0:   *aCells =
michael@0:     static_cast<IUnknown**>(::CoTaskMemAlloc(sizeof(IUnknown*) *
michael@0:                                              cells.Length()));
michael@0:   if (!*aCells)
michael@0:     return E_OUTOFMEMORY;
michael@0: 
michael@0:   for (uint32_t i = 0; i < cells.Length(); i++) {
michael@0:     (*aCells)[i] =
michael@0:       static_cast<IAccessible*>(static_cast<AccessibleWrap*>(cells[i]));
michael@0:     ((*aCells)[i])->AddRef();
michael@0:   }
michael@0: 
michael@0:   *aNSelectedCells = cells.Length();
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_selectedColumns(long** aColumns, long* aNColumns)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aColumns || !aNColumns)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aColumns = nullptr;
michael@0:   *aNColumns = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   nsAutoTArray<uint32_t, 30> colIndices;
michael@0:   mTable->SelectedColIndices(&colIndices);
michael@0: 
michael@0:   uint32_t maxCols = colIndices.Length();
michael@0:   if (maxCols == 0)
michael@0:     return S_FALSE;
michael@0: 
michael@0:   *aColumns = static_cast<LONG*>(moz_xmalloc(sizeof(LONG) * maxCols));
michael@0:   *aNColumns = maxCols;
michael@0:   for (uint32_t i = 0; i < maxCols; i++)
michael@0:     (*aColumns)[i] = colIndices[i];
michael@0: 
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleTable::get_selectedRows(long** aRows, long* aNRows)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aRows || !aNRows)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aRows = nullptr;
michael@0:   *aNRows = 0;
michael@0:   if (!mTable)
michael@0:     return CO_E_OBJNOTCONNECTED;
michael@0: 
michael@0:   nsAutoTArray<uint32_t, 30> rowIndices;
michael@0:   mTable->SelectedRowIndices(&rowIndices);
michael@0: 
michael@0:   uint32_t maxRows = rowIndices.Length();
michael@0:   if (maxRows == 0)
michael@0:     return S_FALSE;
michael@0: 
michael@0:   *aRows = static_cast<LONG*>(moz_xmalloc(sizeof(LONG) * maxRows));
michael@0:   *aNRows = maxRows;
michael@0:   for (uint32_t i = 0; i < maxRows; i++)
michael@0:     (*aRows)[i] = rowIndices[i];
michael@0: 
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }