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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

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 #include "ia2AccessibleTable.h"

 #include "Accessible2.h"

 #include "AccessibleTable_i.c"

 #include "AccessibleTable2_i.c"

 #include "AccessibleWrap.h"

 #include "IUnknownImpl.h"

 #include "Statistics.h"

 #include "TableAccessible.h"

 #include "nsCOMPtr.h"

 #include "nsString.h"

 using namespace mozilla::a11y;

 // 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;

   }

   return E_NOINTERFACE;

 }

 ////////////////////////////////////////////////////////////////////////////////

 // IAccessibleTable

 STDMETHODIMP

 ia2AccessibleTable::get_accessibleAt(long aRowIdx, long aColIdx,

                                      IUnknown** aAccessible)

 {

   return get_cellAt(aRowIdx, aColIdx, aAccessible);

 }

 STDMETHODIMP

 ia2AccessibleTable::get_caption(IUnknown** aAccessible)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aAccessible)

     return E_INVALIDARG;

   *aAccessible = nullptr;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   AccessibleWrap* caption = static_cast<AccessibleWrap*>(mTable->Caption());

   if (!caption)

     return S_FALSE;

   (*aAccessible = static_cast<IAccessible*>(caption))->AddRef();

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_childIndex(long aRowIdx, long aColIdx,

                                    long* aChildIdx)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aChildIdx)

     return E_INVALIDARG;

   *aChildIdx = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aRowIdx < 0 || aColIdx < 0 ||

       static_cast<uint32_t>(aRowIdx) >= mTable->RowCount() ||

       static_cast<uint32_t>(aColIdx) >= mTable->ColCount())

     return E_INVALIDARG;

   *aChildIdx = mTable->CellIndexAt(aRowIdx, aColIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_columnDescription(long aColIdx, BSTR* aDescription)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aDescription)

     return E_INVALIDARG;

   *aDescription = nullptr;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= mTable->ColCount())

     return E_INVALIDARG;

   nsAutoString descr;

   mTable->ColDescription(aColIdx, descr);

   if (descr.IsEmpty())

     return S_FALSE;

   *aDescription = ::SysAllocStringLen(descr.get(), descr.Length());

   return *aDescription ? S_OK : E_OUTOFMEMORY;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_columnExtentAt(long aRowIdx, long aColIdx,

                                       long* aSpan)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aSpan)

     return E_INVALIDARG;

   *aSpan = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aRowIdx < 0 || aColIdx < 0 ||

       static_cast<uint32_t>(aRowIdx) >= mTable->RowCount() ||

       static_cast<uint32_t>(aColIdx) >= mTable->ColCount())

     return E_INVALIDARG;

   *aSpan = mTable->ColExtentAt(aRowIdx, aColIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_columnHeader(IAccessibleTable** aAccessibleTable,

                                     long* aStartingRowIndex)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aAccessibleTable || !aStartingRowIndex)

     return E_INVALIDARG;

   *aAccessibleTable = nullptr;

   *aStartingRowIndex = -1;

   return E_NOTIMPL;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_columnIndex(long aCellIdx, long* aColIdx)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aColIdx)

     return E_INVALIDARG;

   *aColIdx = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aCellIdx < 0 ||

       static_cast<uint32_t>(aCellIdx) >= mTable->ColCount() * mTable->RowCount())

     return E_INVALIDARG;

   *aColIdx = mTable->ColIndexAt(aCellIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_nColumns(long* aColCount)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aColCount)

     return E_INVALIDARG;

   *aColCount = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   *aColCount = mTable->ColCount();

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_nRows(long* aRowCount)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aRowCount)

     return E_INVALIDARG;

   *aRowCount = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   *aRowCount = mTable->RowCount();

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_nSelectedChildren(long* aChildCount)

 {

   return get_nSelectedCells(aChildCount);

 }

 STDMETHODIMP

 ia2AccessibleTable::get_nSelectedColumns(long* aColCount)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aColCount)

     return E_INVALIDARG;

   *aColCount = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   *aColCount = mTable->SelectedColCount();

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_nSelectedRows(long* aRowCount)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aRowCount)

     return E_INVALIDARG;

   *aRowCount = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   *aRowCount = mTable->SelectedRowCount();

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_rowDescription(long aRowIdx, BSTR* aDescription)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aDescription)

     return E_INVALIDARG;

   *aDescription = nullptr;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= mTable->RowCount())

     return E_INVALIDARG;

   nsAutoString descr;

   mTable->RowDescription(aRowIdx, descr);

   if (descr.IsEmpty())

     return S_FALSE;

   *aDescription = ::SysAllocStringLen(descr.get(), descr.Length());

   return *aDescription ? S_OK : E_OUTOFMEMORY;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_rowExtentAt(long aRowIdx, long aColIdx, long* aSpan)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aSpan)

     return E_INVALIDARG;

   *aSpan = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aRowIdx < 0 || aColIdx < 0 ||

       static_cast<uint32_t>(aRowIdx) >= mTable->RowCount() ||

       static_cast<uint32_t>(aColIdx) >= mTable->ColCount())

     return E_INVALIDARG;

   *aSpan = mTable->RowExtentAt(aRowIdx, aColIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_rowHeader(IAccessibleTable** aAccessibleTable,

                                   long* aStartingColumnIndex)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aAccessibleTable || !aStartingColumnIndex)

     return E_INVALIDARG;

   *aAccessibleTable = nullptr;

   *aStartingColumnIndex = -1;

   return E_NOTIMPL;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_rowIndex(long aCellIdx, long* aRowIdx)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aRowIdx)

     return E_INVALIDARG;

   *aRowIdx = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aCellIdx < 0 ||

       static_cast<uint32_t>(aCellIdx) >= mTable->ColCount() * mTable->RowCount())

     return E_INVALIDARG;

   *aRowIdx = mTable->RowIndexAt(aCellIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_selectedChildren(long aMaxChildren, long** aChildren,

                                          long* aNChildren)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aChildren || !aNChildren)

     return E_INVALIDARG;

   *aChildren = nullptr;

   *aNChildren = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   nsAutoTArray<uint32_t, 30> cellIndices;

   mTable->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;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_selectedColumns(long aMaxColumns, long** aColumns,

                                         long* aNColumns)

 {

   A11Y_TRYBLOCK_BEGIN

   return get_selectedColumns(aColumns, aNColumns);

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_selectedRows(long aMaxRows, long** aRows, long* aNRows)

 {

   A11Y_TRYBLOCK_BEGIN

   return get_selectedRows(aRows, aNRows);

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_summary(IUnknown** aAccessible)

 {

   A11Y_TRYBLOCK_BEGIN

   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 nsIAccessibleTable::summary to get a summary as a string which is not

   // mapped directly to IAccessible2.

   *aAccessible = nullptr;

   return S_FALSE;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_isColumnSelected(long aColIdx, boolean* aIsSelected)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aIsSelected)

     return E_INVALIDARG;

   *aIsSelected = false;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= mTable->ColCount())

     return E_INVALIDARG;

   *aIsSelected = mTable->IsColSelected(aColIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_isRowSelected(long aRowIdx, boolean* aIsSelected)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aIsSelected)

     return E_INVALIDARG;

   *aIsSelected = false;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= mTable->RowCount())

     return E_INVALIDARG;

   *aIsSelected = mTable->IsRowSelected(aRowIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_isSelected(long aRowIdx, long aColIdx,

                                    boolean* aIsSelected)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aIsSelected)

     return E_INVALIDARG;

   *aIsSelected = false;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aRowIdx < 0 || aColIdx < 0 ||

       static_cast<uint32_t>(aColIdx) >= mTable->ColCount() ||

       static_cast<uint32_t>(aRowIdx) >= mTable->RowCount())

     return E_INVALIDARG;

   *aIsSelected = mTable->IsCellSelected(aRowIdx, aColIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::selectRow(long aRowIdx)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= mTable->RowCount())

     return E_INVALIDARG;

   mTable->SelectRow(aRowIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::selectColumn(long aColIdx)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= mTable->ColCount())

     return E_INVALIDARG;

   mTable->SelectCol(aColIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::unselectRow(long aRowIdx)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= mTable->RowCount())

     return E_INVALIDARG;

   mTable->UnselectRow(aRowIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::unselectColumn(long aColIdx)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= mTable->ColCount())

     return E_INVALIDARG;

   mTable->UnselectCol(aColIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_rowColumnExtentsAtIndex(long aCellIdx, long* aRowIdx,

                                                 long* aColIdx,

                                                 long* aRowExtents,

                                                 long* aColExtents,

                                                 boolean* aIsSelected)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aRowIdx || !aColIdx || !aRowExtents || !aColExtents || !aIsSelected)

     return E_INVALIDARG;

   *aRowIdx = 0;

   *aColIdx = 0;

   *aRowExtents = 0;

   *aColExtents = 0;

   *aIsSelected = false;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   if (aCellIdx < 0 ||

       static_cast<uint32_t>(aCellIdx) >= mTable->ColCount() * mTable->RowCount())

     return E_INVALIDARG;

   int32_t colIdx = 0, rowIdx = 0;

   mTable->RowAndColIndicesAt(aCellIdx, &rowIdx, &colIdx);

   *aRowIdx = rowIdx;

   *aColIdx = colIdx;

   *aRowExtents = mTable->RowExtentAt(rowIdx, colIdx);

   *aColExtents = mTable->ColExtentAt(rowIdx, colIdx);

   *aIsSelected = mTable->IsCellSelected(rowIdx, colIdx);

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_modelChange(IA2TableModelChange* aModelChange)

 {

   return E_NOTIMPL;

 }

 ////////////////////////////////////////////////////////////////////////////////

 // IAccessibleTable2

 STDMETHODIMP

 ia2AccessibleTable::get_cellAt(long aRowIdx, long aColIdx, IUnknown** aCell)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aCell)

     return E_INVALIDARG;

   *aCell = nullptr;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   AccessibleWrap* cell =

     static_cast<AccessibleWrap*>(mTable->CellAt(aRowIdx, aColIdx));

   if (!cell)

     return E_INVALIDARG;

   (*aCell = static_cast<IAccessible*>(cell))->AddRef();

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_nSelectedCells(long* aCellCount)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aCellCount)

     return E_INVALIDARG;

   *aCellCount = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   *aCellCount = mTable->SelectedCellCount();

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_selectedCells(IUnknown*** aCells, long* aNSelectedCells)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aCells || !aNSelectedCells)

     return E_INVALIDARG;

   *aCells = nullptr;

   *aNSelectedCells = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   nsAutoTArray<Accessible*, 30> cells;

   mTable->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++) {

     (*aCells)[i] =

       static_cast<IAccessible*>(static_cast<AccessibleWrap*>(cells[i]));

     ((*aCells)[i])->AddRef();

   }

   *aNSelectedCells = cells.Length();

   return S_OK;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_selectedColumns(long** aColumns, long* aNColumns)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aColumns || !aNColumns)

     return E_INVALIDARG;

   *aColumns = nullptr;

   *aNColumns = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   nsAutoTArray<uint32_t, 30> colIndices;

   mTable->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;

   A11Y_TRYBLOCK_END

 }

 STDMETHODIMP

 ia2AccessibleTable::get_selectedRows(long** aRows, long* aNRows)

 {

   A11Y_TRYBLOCK_BEGIN

   if (!aRows || !aNRows)

     return E_INVALIDARG;

   *aRows = nullptr;

   *aNRows = 0;

   if (!mTable)

     return CO_E_OBJNOTCONNECTED;

   nsAutoTArray<uint32_t, 30> rowIndices;

   mTable->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;

   A11Y_TRYBLOCK_END

 }