michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
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 "InterfaceInitFuncs.h"
michael@0: 
michael@0: #include "Accessible-inl.h"
michael@0: #include "AccessibleWrap.h"
michael@0: #include "nsAccUtils.h"
michael@0: #include "TableAccessible.h"
michael@0: #include "TableCellAccessible.h"
michael@0: #include "nsMai.h"
michael@0: 
michael@0: #include "nsArrayUtils.h"
michael@0: 
michael@0: #include "mozilla/Likely.h"
michael@0: 
michael@0: using namespace mozilla::a11y;
michael@0: 
michael@0: extern "C" {
michael@0: static AtkObject*
michael@0: refAtCB(AtkTable* aTable, gint aRowIdx, gint aColIdx)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap || aRowIdx < 0 || aColIdx < 0)
michael@0:     return nullptr;
michael@0: 
michael@0:   Accessible* cell = accWrap->AsTable()->CellAt(aRowIdx, aColIdx);
michael@0:   if (!cell)
michael@0:     return nullptr;
michael@0: 
michael@0:   AtkObject* cellAtkObj = AccessibleWrap::GetAtkObject(cell);
michael@0:   if (cellAtkObj)
michael@0:     g_object_ref(cellAtkObj);
michael@0: 
michael@0:   return cellAtkObj;
michael@0: }
michael@0: 
michael@0: static gint
michael@0: getIndexAtCB(AtkTable* aTable, gint aRowIdx, gint aColIdx)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap || aRowIdx < 0 || aColIdx < 0)
michael@0:     return -1;
michael@0: 
michael@0:   return static_cast<gint>(accWrap->AsTable()->CellIndexAt(aRowIdx, aColIdx));
michael@0: }
michael@0: 
michael@0: static gint
michael@0: getColumnAtIndexCB(AtkTable *aTable, gint aIdx)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap || aIdx < 0)
michael@0:     return -1;
michael@0: 
michael@0:     return static_cast<gint>(accWrap->AsTable()->ColIndexAt(aIdx));
michael@0: }
michael@0: 
michael@0: static gint
michael@0: getRowAtIndexCB(AtkTable *aTable, gint aIdx)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap || aIdx < 0)
michael@0:     return -1;
michael@0: 
michael@0:     return static_cast<gint>(accWrap->AsTable()->RowIndexAt(aIdx));
michael@0: }
michael@0: 
michael@0: static gint
michael@0: getColumnCountCB(AtkTable *aTable)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return -1;
michael@0: 
michael@0:     return static_cast<gint>(accWrap->AsTable()->ColCount());
michael@0: }
michael@0: 
michael@0: static gint
michael@0: getRowCountCB(AtkTable *aTable)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return -1;
michael@0: 
michael@0:     return static_cast<gint>(accWrap->AsTable()->RowCount());
michael@0: }
michael@0: 
michael@0: static gint
michael@0: getColumnExtentAtCB(AtkTable *aTable, gint aRowIdx, gint aColIdx)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap || aRowIdx < 0 || aColIdx < 0)
michael@0:     return -1;
michael@0: 
michael@0:     return static_cast<gint>(accWrap->AsTable()->ColExtentAt(aRowIdx, aColIdx));
michael@0: }
michael@0: 
michael@0: static gint
michael@0: getRowExtentAtCB(AtkTable *aTable, gint aRowIdx, gint aColIdx)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return -1;
michael@0: 
michael@0:   return static_cast<gint>(accWrap->AsTable()->RowExtentAt(aRowIdx, aColIdx));
michael@0: }
michael@0: 
michael@0: static AtkObject*
michael@0: getCaptionCB(AtkTable* aTable)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return nullptr;
michael@0: 
michael@0:   Accessible* caption = accWrap->AsTable()->Caption();
michael@0:   return caption ? AccessibleWrap::GetAtkObject(caption) : nullptr;
michael@0: }
michael@0: 
michael@0: static const gchar*
michael@0: getColumnDescriptionCB(AtkTable *aTable, gint aColumn)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return nullptr;
michael@0: 
michael@0:   nsAutoString autoStr;
michael@0:   accWrap->AsTable()->ColDescription(aColumn, autoStr);
michael@0: 
michael@0:   return AccessibleWrap::ReturnString(autoStr);
michael@0: }
michael@0: 
michael@0: static AtkObject*
michael@0: getColumnHeaderCB(AtkTable *aTable, gint aColIdx)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return nullptr;
michael@0: 
michael@0:   Accessible* cell = accWrap->AsTable()->CellAt(0, aColIdx);
michael@0:   if (!cell)
michael@0:     return nullptr;
michael@0: 
michael@0:   // If the cell at the first row is column header then assume it is column
michael@0:   // header for all rows,
michael@0:   if (cell->Role() == roles::COLUMNHEADER)
michael@0:     return AccessibleWrap::GetAtkObject(cell);
michael@0: 
michael@0:   // otherwise get column header for the data cell at the first row.
michael@0:   TableCellAccessible* tableCell = cell->AsTableCell();
michael@0:   if (!tableCell)
michael@0:     return nullptr;
michael@0: 
michael@0:   nsAutoTArray<Accessible*, 10> headerCells;
michael@0:   tableCell->ColHeaderCells(&headerCells);
michael@0:   if (headerCells.IsEmpty())
michael@0:     return nullptr;
michael@0: 
michael@0:   return AccessibleWrap::GetAtkObject(headerCells[0]);
michael@0: }
michael@0: 
michael@0: static const gchar*
michael@0: getRowDescriptionCB(AtkTable *aTable, gint aRow)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return nullptr;
michael@0: 
michael@0:   nsAutoString autoStr;
michael@0:   accWrap->AsTable()->RowDescription(aRow, autoStr);
michael@0: 
michael@0:   return AccessibleWrap::ReturnString(autoStr);
michael@0: }
michael@0: 
michael@0: static AtkObject*
michael@0: getRowHeaderCB(AtkTable *aTable, gint aRowIdx)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return nullptr;
michael@0: 
michael@0:   Accessible* cell = accWrap->AsTable()->CellAt(aRowIdx, 0);
michael@0:   if (!cell)
michael@0:     return nullptr;
michael@0: 
michael@0:   // If the cell at the first column is row header then assume it is row
michael@0:   // header for all columns,
michael@0:   if (cell->Role() == roles::ROWHEADER)
michael@0:     return AccessibleWrap::GetAtkObject(cell);
michael@0: 
michael@0:   // otherwise get row header for the data cell at the first column.
michael@0:   TableCellAccessible* tableCell = cell->AsTableCell();
michael@0:   if (!tableCell)
michael@0:     return nullptr;
michael@0: 
michael@0:   nsAutoTArray<Accessible*, 10> headerCells;
michael@0:   tableCell->RowHeaderCells(&headerCells);
michael@0:   if (headerCells.IsEmpty())
michael@0:     return nullptr;
michael@0: 
michael@0:   return AccessibleWrap::GetAtkObject(headerCells[0]);
michael@0: }
michael@0: 
michael@0: static AtkObject*
michael@0: getSummaryCB(AtkTable *aTable)
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 TableAccessible::summary to get a summary as a string which is not
michael@0:   // mapped directly to ATK.
michael@0:   return nullptr;
michael@0: }
michael@0: 
michael@0: static gint
michael@0: getSelectedColumnsCB(AtkTable *aTable, gint** aSelected)
michael@0: {
michael@0:   *aSelected = nullptr;
michael@0: 
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return 0;
michael@0: 
michael@0:   nsAutoTArray<uint32_t, 10> cols;
michael@0:   accWrap->AsTable()->SelectedColIndices(&cols);
michael@0:   if (cols.IsEmpty())
michael@0:     return 0;
michael@0: 
michael@0:   gint* atkColumns = g_new(gint, cols.Length());
michael@0:   if (!atkColumns) {
michael@0:     NS_WARNING("OUT OF MEMORY");
michael@0:     return 0;
michael@0:   }
michael@0: 
michael@0:   memcpy(atkColumns, cols.Elements(), cols.Length() * sizeof(uint32_t));
michael@0:   *aSelected = atkColumns;
michael@0:   return cols.Length();
michael@0: }
michael@0: 
michael@0: static gint
michael@0: getSelectedRowsCB(AtkTable *aTable, gint **aSelected)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return 0;
michael@0: 
michael@0:   nsAutoTArray<uint32_t, 10> rows;
michael@0:   accWrap->AsTable()->SelectedRowIndices(&rows);
michael@0: 
michael@0:   gint* atkRows = g_new(gint, rows.Length());
michael@0:   if (!atkRows) {
michael@0:     NS_WARNING("OUT OF MEMORY");
michael@0:     return 0;
michael@0:   }
michael@0: 
michael@0:   memcpy(atkRows, rows.Elements(), rows.Length() * sizeof(uint32_t));
michael@0:   *aSelected = atkRows;
michael@0:   return rows.Length();
michael@0: }
michael@0: 
michael@0: static gboolean
michael@0: isColumnSelectedCB(AtkTable *aTable, gint aColIdx)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return FALSE;
michael@0: 
michael@0:   return static_cast<gboolean>(accWrap->AsTable()->IsColSelected(aColIdx));
michael@0: }
michael@0: 
michael@0: static gboolean
michael@0: isRowSelectedCB(AtkTable *aTable, gint aRowIdx)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return FALSE;
michael@0: 
michael@0:   return static_cast<gboolean>(accWrap->AsTable()->IsRowSelected(aRowIdx));
michael@0: }
michael@0: 
michael@0: static gboolean
michael@0: isCellSelectedCB(AtkTable *aTable, gint aRowIdx, gint aColIdx)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
michael@0:   if (!accWrap)
michael@0:     return FALSE;
michael@0: 
michael@0:     return static_cast<gboolean>(accWrap->AsTable()->
michael@0:       IsCellSelected(aRowIdx, aColIdx));
michael@0: }
michael@0: }
michael@0: 
michael@0: void
michael@0: tableInterfaceInitCB(AtkTableIface* aIface)
michael@0: {
michael@0:   NS_ASSERTION(aIface, "no interface!");
michael@0:   if (MOZ_UNLIKELY(!aIface))
michael@0:     return;
michael@0: 
michael@0:   aIface->ref_at = refAtCB;
michael@0:   aIface->get_index_at = getIndexAtCB;
michael@0:   aIface->get_column_at_index = getColumnAtIndexCB;
michael@0:   aIface->get_row_at_index = getRowAtIndexCB;
michael@0:   aIface->get_n_columns = getColumnCountCB;
michael@0:   aIface->get_n_rows = getRowCountCB;
michael@0:   aIface->get_column_extent_at = getColumnExtentAtCB;
michael@0:   aIface->get_row_extent_at = getRowExtentAtCB;
michael@0:   aIface->get_caption = getCaptionCB;
michael@0:   aIface->get_column_description = getColumnDescriptionCB;
michael@0:   aIface->get_column_header = getColumnHeaderCB;
michael@0:   aIface->get_row_description = getRowDescriptionCB;
michael@0:   aIface->get_row_header = getRowHeaderCB;
michael@0:   aIface->get_summary = getSummaryCB;
michael@0:   aIface->get_selected_columns = getSelectedColumnsCB;
michael@0:   aIface->get_selected_rows = getSelectedRowsCB;
michael@0:   aIface->is_column_selected = isColumnSelectedCB;
michael@0:   aIface->is_row_selected = isRowSelectedCB;
michael@0:   aIface->is_selected = isCellSelectedCB;
michael@0: }