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Diffstat (limited to '')
| -rw-r--r-- | accessible/windows/ia2/ia2AccessibleTable.cpp | 534 |
1 files changed, 534 insertions, 0 deletions
diff --git a/accessible/windows/ia2/ia2AccessibleTable.cpp b/accessible/windows/ia2/ia2AccessibleTable.cpp new file mode 100644 index 0000000000..50bdc79967 --- /dev/null +++ b/accessible/windows/ia2/ia2AccessibleTable.cpp @@ -0,0 +1,534 @@ +/* -*- 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 "IUnknownImpl.h" +#include "mozilla/a11y/Accessible.h" +#include "mozilla/a11y/TableAccessible.h" +#include "nsCOMPtr.h" +#include "nsString.h" +#include "Statistics.h" + +using namespace mozilla::a11y; + +TableAccessible* ia2AccessibleTable::TableAcc() { + Accessible* acc = Acc(); + return acc ? acc->AsTable() : nullptr; +} + +// 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 ia2AccessibleHypertext::QueryInterface(iid, ppv); +} + +//////////////////////////////////////////////////////////////////////////////// +// IAccessibleTable + +STDMETHODIMP +ia2AccessibleTable::get_accessibleAt(long aRowIdx, long aColIdx, + IUnknown** aAccessible) { + return get_cellAt(aRowIdx, aColIdx, aAccessible); +} + +STDMETHODIMP +ia2AccessibleTable::get_caption(IUnknown** aAccessible) { + if (!aAccessible) return E_INVALIDARG; + + *aAccessible = nullptr; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + Accessible* caption = table->Caption(); + if (!caption) return S_FALSE; + + RefPtr<IAccessible> result = MsaaAccessible::GetFrom(caption); + result.forget(aAccessible); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_childIndex(long aRowIdx, long aColIdx, + long* aChildIdx) { + if (!aChildIdx) return E_INVALIDARG; + + *aChildIdx = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + if (aRowIdx < 0 || aColIdx < 0 || + static_cast<uint32_t>(aRowIdx) >= table->RowCount() || + static_cast<uint32_t>(aColIdx) >= table->ColCount()) + return E_INVALIDARG; + + *aChildIdx = table->CellIndexAt(aRowIdx, aColIdx); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_columnDescription(long aColIdx, BSTR* aDescription) { + if (!aDescription) return E_INVALIDARG; + + *aDescription = nullptr; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= table->ColCount()) + return E_INVALIDARG; + + nsAutoString descr; + table->ColDescription(aColIdx, descr); + if (descr.IsEmpty()) return S_FALSE; + + *aDescription = ::SysAllocStringLen(descr.get(), descr.Length()); + return *aDescription ? S_OK : E_OUTOFMEMORY; +} + +STDMETHODIMP +ia2AccessibleTable::get_columnExtentAt(long aRowIdx, long aColIdx, + long* aSpan) { + if (!aSpan) return E_INVALIDARG; + + *aSpan = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + if (aRowIdx < 0 || aColIdx < 0 || + static_cast<uint32_t>(aRowIdx) >= table->RowCount() || + static_cast<uint32_t>(aColIdx) >= table->ColCount()) + return E_INVALIDARG; + + *aSpan = table->ColExtentAt(aRowIdx, aColIdx); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_columnHeader(IAccessibleTable** aAccessibleTable, + long* aStartingRowIndex) { + if (!aAccessibleTable || !aStartingRowIndex) return E_INVALIDARG; + + *aAccessibleTable = nullptr; + *aStartingRowIndex = -1; + return E_NOTIMPL; +} + +STDMETHODIMP +ia2AccessibleTable::get_columnIndex(long aCellIdx, long* aColIdx) { + if (!aColIdx) return E_INVALIDARG; + + *aColIdx = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + if (aCellIdx < 0) { + return E_INVALIDARG; + } + + long colIdx = table->ColIndexAt(aCellIdx); + if (colIdx == -1) { // Indicates an error. + return E_INVALIDARG; + } + + *aColIdx = colIdx; + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_nColumns(long* aColCount) { + if (!aColCount) return E_INVALIDARG; + + *aColCount = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + *aColCount = table->ColCount(); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_nRows(long* aRowCount) { + if (!aRowCount) return E_INVALIDARG; + + *aRowCount = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + *aRowCount = table->RowCount(); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_nSelectedChildren(long* aChildCount) { + return get_nSelectedCells(aChildCount); +} + +STDMETHODIMP +ia2AccessibleTable::get_nSelectedColumns(long* aColCount) { + if (!aColCount) return E_INVALIDARG; + + *aColCount = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + *aColCount = table->SelectedColCount(); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_nSelectedRows(long* aRowCount) { + if (!aRowCount) return E_INVALIDARG; + + *aRowCount = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + *aRowCount = table->SelectedRowCount(); + + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_rowDescription(long aRowIdx, BSTR* aDescription) { + if (!aDescription) return E_INVALIDARG; + + *aDescription = nullptr; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= table->RowCount()) + return E_INVALIDARG; + + nsAutoString descr; + table->RowDescription(aRowIdx, descr); + if (descr.IsEmpty()) return S_FALSE; + + *aDescription = ::SysAllocStringLen(descr.get(), descr.Length()); + return *aDescription ? S_OK : E_OUTOFMEMORY; +} + +STDMETHODIMP +ia2AccessibleTable::get_rowExtentAt(long aRowIdx, long aColIdx, long* aSpan) { + if (!aSpan) return E_INVALIDARG; + + *aSpan = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + if (aRowIdx < 0 || aColIdx < 0 || + static_cast<uint32_t>(aRowIdx) >= table->RowCount() || + static_cast<uint32_t>(aColIdx) >= table->ColCount()) + return E_INVALIDARG; + + *aSpan = table->RowExtentAt(aRowIdx, aColIdx); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_rowHeader(IAccessibleTable** aAccessibleTable, + long* aStartingColumnIndex) { + if (!aAccessibleTable || !aStartingColumnIndex) return E_INVALIDARG; + + *aAccessibleTable = nullptr; + *aStartingColumnIndex = -1; + return E_NOTIMPL; +} + +STDMETHODIMP +ia2AccessibleTable::get_rowIndex(long aCellIdx, long* aRowIdx) { + if (!aRowIdx) return E_INVALIDARG; + + *aRowIdx = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + if (aCellIdx < 0) { + return E_INVALIDARG; + } + + long rowIdx = table->RowIndexAt(aCellIdx); + if (rowIdx == -1) { // Indicates an error. + return E_INVALIDARG; + } + + *aRowIdx = rowIdx; + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_selectedChildren(long aMaxChildren, long** aChildren, + long* aNChildren) { + if (!aChildren || !aNChildren) return E_INVALIDARG; + + *aChildren = nullptr; + *aNChildren = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + AutoTArray<uint32_t, 30> cellIndices; + table->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; +} + +STDMETHODIMP +ia2AccessibleTable::get_selectedColumns(long aMaxColumns, long** aColumns, + long* aNColumns) { + return get_selectedColumns(aColumns, aNColumns); +} + +STDMETHODIMP +ia2AccessibleTable::get_selectedRows(long aMaxRows, long** aRows, + long* aNRows) { + return get_selectedRows(aRows, aNRows); +} + +STDMETHODIMP +ia2AccessibleTable::get_summary(IUnknown** aAccessible) { + 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 Table::summary to get a summary as a string which is not mapped + // directly to IAccessible2. + + *aAccessible = nullptr; + return S_FALSE; +} + +STDMETHODIMP +ia2AccessibleTable::get_isColumnSelected(long aColIdx, boolean* aIsSelected) { + if (!aIsSelected) return E_INVALIDARG; + + *aIsSelected = false; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + if (aColIdx < 0 || static_cast<uint32_t>(aColIdx) >= table->ColCount()) + return E_INVALIDARG; + + *aIsSelected = table->IsColSelected(aColIdx); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_isRowSelected(long aRowIdx, boolean* aIsSelected) { + if (!aIsSelected) return E_INVALIDARG; + + *aIsSelected = false; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + if (aRowIdx < 0 || static_cast<uint32_t>(aRowIdx) >= table->RowCount()) + return E_INVALIDARG; + + *aIsSelected = table->IsRowSelected(aRowIdx); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_isSelected(long aRowIdx, long aColIdx, + boolean* aIsSelected) { + if (!aIsSelected) return E_INVALIDARG; + + *aIsSelected = false; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + if (aRowIdx < 0 || aColIdx < 0 || + static_cast<uint32_t>(aColIdx) >= table->ColCount() || + static_cast<uint32_t>(aRowIdx) >= table->RowCount()) + return E_INVALIDARG; + + *aIsSelected = table->IsCellSelected(aRowIdx, aColIdx); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::selectRow(long aRowIdx) { return E_NOTIMPL; } + +STDMETHODIMP +ia2AccessibleTable::selectColumn(long aColIdx) { return E_NOTIMPL; } + +STDMETHODIMP +ia2AccessibleTable::unselectRow(long aRowIdx) { return E_NOTIMPL; } + +STDMETHODIMP +ia2AccessibleTable::unselectColumn(long aColIdx) { return E_NOTIMPL; } + +STDMETHODIMP +ia2AccessibleTable::get_rowColumnExtentsAtIndex(long aCellIdx, long* aRowIdx, + long* aColIdx, + long* aRowExtents, + long* aColExtents, + boolean* aIsSelected) { + if (!aRowIdx || !aColIdx || !aRowExtents || !aColExtents || !aIsSelected) + return E_INVALIDARG; + + *aRowIdx = 0; + *aColIdx = 0; + *aRowExtents = 0; + *aColExtents = 0; + *aIsSelected = false; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + if (aCellIdx < 0) { + return E_INVALIDARG; + } + + int32_t colIdx = 0, rowIdx = 0; + table->RowAndColIndicesAt(aCellIdx, &rowIdx, &colIdx); + if (rowIdx == -1 || colIdx == -1) { // Indicates an error. + return E_INVALIDARG; + } + + *aRowIdx = rowIdx; + *aColIdx = colIdx; + *aRowExtents = table->RowExtentAt(rowIdx, colIdx); + *aColExtents = table->ColExtentAt(rowIdx, colIdx); + *aIsSelected = table->IsCellSelected(rowIdx, colIdx); + + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_modelChange(IA2TableModelChange* aModelChange) { + return E_NOTIMPL; +} + +//////////////////////////////////////////////////////////////////////////////// +// IAccessibleTable2 + +STDMETHODIMP +ia2AccessibleTable::get_cellAt(long aRowIdx, long aColIdx, IUnknown** aCell) { + if (!aCell) return E_INVALIDARG; + + *aCell = nullptr; + + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + Accessible* cell = table->CellAt(aRowIdx, aColIdx); + if (!cell) return E_INVALIDARG; + + RefPtr<IAccessible> result = MsaaAccessible::GetFrom(cell); + result.forget(aCell); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_nSelectedCells(long* aCellCount) { + if (!aCellCount) return E_INVALIDARG; + + *aCellCount = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + *aCellCount = table->SelectedCellCount(); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_selectedCells(IUnknown*** aCells, + long* aNSelectedCells) { + if (!aCells || !aNSelectedCells) return E_INVALIDARG; + + *aCells = nullptr; + *aNSelectedCells = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + AutoTArray<Accessible*, 30> cells; + table->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++) { + RefPtr<IAccessible> cell = MsaaAccessible::GetFrom(cells[i]); + cell.forget(&(*aCells)[i]); + } + + *aNSelectedCells = cells.Length(); + return S_OK; +} + +STDMETHODIMP +ia2AccessibleTable::get_selectedColumns(long** aColumns, long* aNColumns) { + if (!aColumns || !aNColumns) return E_INVALIDARG; + + *aColumns = nullptr; + *aNColumns = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + AutoTArray<uint32_t, 30> colIndices; + table->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; +} + +STDMETHODIMP +ia2AccessibleTable::get_selectedRows(long** aRows, long* aNRows) { + if (!aRows || !aNRows) return E_INVALIDARG; + + *aRows = nullptr; + *aNRows = 0; + TableAccessible* table = TableAcc(); + if (!table) return CO_E_OBJNOTCONNECTED; + + AutoTArray<uint32_t, 30> rowIndices; + table->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; +} |