gecko-dev/accessible/atk/nsMaiInterfaceTable.cpp
Sylvestre Ledru 345833852a Bug 1338086 - Remove useless else blocks in order to reduce complexity accessible/atk r=davidb
MozReview-Commit-ID: 7ZVqMkXZ5vj

--HG--
extra : rebase_source : 03e1dc9285ce9096a2d84a6e64d22d71a5363dbb
2017-02-14 15:01:23 +01:00

395 lines
10 KiB
C++

/* -*- 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;
}