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Diffstat (limited to '')
| -rw-r--r-- | accessible/atk/nsMaiInterfaceTable.cpp | 352 |
1 files changed, 352 insertions, 0 deletions
diff --git a/accessible/atk/nsMaiInterfaceTable.cpp b/accessible/atk/nsMaiInterfaceTable.cpp new file mode 100644 index 0000000000..9915848a08 --- /dev/null +++ b/accessible/atk/nsMaiInterfaceTable.cpp @@ -0,0 +1,352 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=2 et sw=2 tw=80: */ +/* 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 "InterfaceInitFuncs.h" + +#include "Accessible-inl.h" +#include "AccessibleWrap.h" +#include "nsAccUtils.h" +#include "TableAccessible.h" +#include "TableCellAccessible.h" +#include "nsMai.h" +#include "ProxyAccessible.h" +#include "nsArrayUtils.h" + +#include "mozilla/Likely.h" + +using namespace mozilla::a11y; + +extern "C" { +static AtkObject* refAtCB(AtkTable* aTable, gint aRowIdx, gint aColIdx) { + if (aRowIdx < 0 || aColIdx < 0) { + return nullptr; + } + + AtkObject* cellAtkObj = nullptr; + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + Accessible* cell = accWrap->AsTable()->CellAt(aRowIdx, aColIdx); + if (!cell) { + return nullptr; + } + + cellAtkObj = AccessibleWrap::GetAtkObject(cell); + } else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + ProxyAccessible* cell = proxy->TableCellAt(aRowIdx, aColIdx); + if (!cell) { + return nullptr; + } + + cellAtkObj = GetWrapperFor(cell); + } + + if (cellAtkObj) { + g_object_ref(cellAtkObj); + } + + return cellAtkObj; +} + +static gint getIndexAtCB(AtkTable* aTable, gint aRowIdx, gint aColIdx) { + if (aRowIdx < 0 || aColIdx < 0) { + return -1; + } + + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + return static_cast<gint>(accWrap->AsTable()->CellIndexAt(aRowIdx, aColIdx)); + } + + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + return static_cast<gint>(proxy->TableCellIndexAt(aRowIdx, aColIdx)); + } + + return -1; +} + +static gint getColumnAtIndexCB(AtkTable* aTable, gint aIdx) { + if (aIdx < 0) { + return -1; + } + + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + return static_cast<gint>(accWrap->AsTable()->ColIndexAt(aIdx)); + } + + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + return static_cast<gint>(proxy->TableColumnIndexAt(aIdx)); + } + + return -1; +} + +static gint getRowAtIndexCB(AtkTable* aTable, gint aIdx) { + if (aIdx < 0) { + return -1; + } + + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + return static_cast<gint>(accWrap->AsTable()->RowIndexAt(aIdx)); + } + + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + return static_cast<gint>(proxy->TableRowIndexAt(aIdx)); + } + + return -1; +} + +static gint getColumnCountCB(AtkTable* aTable) { + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + return static_cast<gint>(accWrap->AsTable()->ColCount()); + } + + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + return static_cast<gint>(proxy->TableColumnCount()); + } + + return -1; +} + +static gint getRowCountCB(AtkTable* aTable) { + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + return static_cast<gint>(accWrap->AsTable()->RowCount()); + } + + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + return static_cast<gint>(proxy->TableRowCount()); + } + + return -1; +} + +static gint getColumnExtentAtCB(AtkTable* aTable, gint aRowIdx, gint aColIdx) { + if (aRowIdx < 0 || aColIdx < 0) { + return -1; + } + + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + return static_cast<gint>(accWrap->AsTable()->ColExtentAt(aRowIdx, aColIdx)); + } + + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + return static_cast<gint>(proxy->TableColumnExtentAt(aRowIdx, aColIdx)); + } + + return -1; +} + +static gint getRowExtentAtCB(AtkTable* aTable, gint aRowIdx, gint aColIdx) { + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + return static_cast<gint>(accWrap->AsTable()->RowExtentAt(aRowIdx, aColIdx)); + } + + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + return static_cast<gint>(proxy->TableRowExtentAt(aRowIdx, aColIdx)); + } + + return -1; +} + +static AtkObject* getCaptionCB(AtkTable* aTable) { + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + Accessible* caption = accWrap->AsTable()->Caption(); + return caption ? AccessibleWrap::GetAtkObject(caption) : nullptr; + } + + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + ProxyAccessible* caption = proxy->TableCaption(); + return caption ? GetWrapperFor(caption) : nullptr; + } + + return nullptr; +} + +static const gchar* getColumnDescriptionCB(AtkTable* aTable, gint aColumn) { + nsAutoString autoStr; + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + accWrap->AsTable()->ColDescription(aColumn, autoStr); + } else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + proxy->TableColumnDescription(aColumn, autoStr); + } else { + return nullptr; + } + + return AccessibleWrap::ReturnString(autoStr); +} + +static AtkObject* getColumnHeaderCB(AtkTable* aTable, gint aColIdx) { + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + Accessible* header = + AccessibleWrap::GetColumnHeader(accWrap->AsTable(), aColIdx); + return header ? AccessibleWrap::GetAtkObject(header) : nullptr; + } + + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + ProxyAccessible* header = proxy->AtkTableColumnHeader(aColIdx); + return header ? GetWrapperFor(header) : nullptr; + } + + return nullptr; +} + +static const gchar* getRowDescriptionCB(AtkTable* aTable, gint aRow) { + nsAutoString autoStr; + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + accWrap->AsTable()->RowDescription(aRow, autoStr); + } else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + proxy->TableRowDescription(aRow, autoStr); + } else { + return nullptr; + } + + return AccessibleWrap::ReturnString(autoStr); +} + +static AtkObject* getRowHeaderCB(AtkTable* aTable, gint aRowIdx) { + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + Accessible* header = + AccessibleWrap::GetRowHeader(accWrap->AsTable(), aRowIdx); + return header ? AccessibleWrap::GetAtkObject(header) : nullptr; + } + + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + ProxyAccessible* header = proxy->AtkTableRowHeader(aRowIdx); + return header ? GetWrapperFor(header) : nullptr; + } + + return nullptr; +} + +static AtkObject* getSummaryCB(AtkTable* aTable) { + // 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 TableAccessible::summary to get a summary as a string which is not + // mapped directly to ATK. + return nullptr; +} + +static gint getSelectedColumnsCB(AtkTable* aTable, gint** aSelected) { + *aSelected = nullptr; + + AutoTArray<uint32_t, 10> cols; + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + accWrap->AsTable()->SelectedColIndices(&cols); + } else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + proxy->TableSelectedColumnIndices(&cols); + } else { + return 0; + } + + if (cols.IsEmpty()) return 0; + + gint* atkColumns = g_new(gint, cols.Length()); + if (!atkColumns) { + NS_WARNING("OUT OF MEMORY"); + return 0; + } + + memcpy(atkColumns, cols.Elements(), cols.Length() * sizeof(uint32_t)); + *aSelected = atkColumns; + return cols.Length(); +} + +static gint getSelectedRowsCB(AtkTable* aTable, gint** aSelected) { + AutoTArray<uint32_t, 10> rows; + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + accWrap->AsTable()->SelectedRowIndices(&rows); + } else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + proxy->TableSelectedRowIndices(&rows); + } else { + return 0; + } + + gint* atkRows = g_new(gint, rows.Length()); + if (!atkRows) { + NS_WARNING("OUT OF MEMORY"); + return 0; + } + + memcpy(atkRows, rows.Elements(), rows.Length() * sizeof(uint32_t)); + *aSelected = atkRows; + return rows.Length(); +} + +static gboolean isColumnSelectedCB(AtkTable* aTable, gint aColIdx) { + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + return static_cast<gboolean>(accWrap->AsTable()->IsColSelected(aColIdx)); + } + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + return static_cast<gboolean>(proxy->TableColumnSelected(aColIdx)); + } + + return FALSE; +} + +static gboolean isRowSelectedCB(AtkTable* aTable, gint aRowIdx) { + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + return static_cast<gboolean>(accWrap->AsTable()->IsRowSelected(aRowIdx)); + } + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + return static_cast<gboolean>(proxy->TableRowSelected(aRowIdx)); + } + + return FALSE; +} + +static gboolean isCellSelectedCB(AtkTable* aTable, gint aRowIdx, gint aColIdx) { + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable)); + if (accWrap) { + return static_cast<gboolean>( + accWrap->AsTable()->IsCellSelected(aRowIdx, aColIdx)); + } + if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aTable))) { + return static_cast<gboolean>(proxy->TableCellSelected(aRowIdx, aColIdx)); + } + + return FALSE; +} +} + +void tableInterfaceInitCB(AtkTableIface* aIface) { + NS_ASSERTION(aIface, "no interface!"); + if (MOZ_UNLIKELY(!aIface)) return; + + aIface->ref_at = refAtCB; + aIface->get_index_at = getIndexAtCB; + aIface->get_column_at_index = getColumnAtIndexCB; + aIface->get_row_at_index = getRowAtIndexCB; + aIface->get_n_columns = getColumnCountCB; + aIface->get_n_rows = getRowCountCB; + aIface->get_column_extent_at = getColumnExtentAtCB; + aIface->get_row_extent_at = getRowExtentAtCB; + aIface->get_caption = getCaptionCB; + aIface->get_column_description = getColumnDescriptionCB; + aIface->get_column_header = getColumnHeaderCB; + aIface->get_row_description = getRowDescriptionCB; + aIface->get_row_header = getRowHeaderCB; + aIface->get_summary = getSummaryCB; + aIface->get_selected_columns = getSelectedColumnsCB; + aIface->get_selected_rows = getSelectedRowsCB; + aIface->is_column_selected = isColumnSelectedCB; + aIface->is_row_selected = isRowSelectedCB; + aIface->is_selected = isCellSelectedCB; +} |