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Diffstat (limited to 'accessible/generic/ARIAGridAccessible.cpp')
-rw-r--r-- | accessible/generic/ARIAGridAccessible.cpp | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/accessible/generic/ARIAGridAccessible.cpp b/accessible/generic/ARIAGridAccessible.cpp new file mode 100644 index 0000000000..58e49bee1f --- /dev/null +++ b/accessible/generic/ARIAGridAccessible.cpp @@ -0,0 +1,77 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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 "ARIAGridAccessible.h" + +#include <stdint.h> +#include "LocalAccessible-inl.h" +#include "AccAttributes.h" +#include "mozilla/a11y/TableAccessible.h" +#include "mozilla/a11y/TableCellAccessible.h" +#include "nsAccessibilityService.h" +#include "nsAccUtils.h" +#include "nsGkAtoms.h" +#include "mozilla/a11y/Role.h" +#include "States.h" + +using namespace mozilla; +using namespace mozilla::a11y; + +//////////////////////////////////////////////////////////////////////////////// +// ARIAGridCellAccessible +//////////////////////////////////////////////////////////////////////////////// + +//////////////////////////////////////////////////////////////////////////////// +// Constructor + +ARIAGridCellAccessible::ARIAGridCellAccessible(nsIContent* aContent, + DocAccessible* aDoc) + : HyperTextAccessible(aContent, aDoc) { + mGenericTypes |= eTableCell; +} + +//////////////////////////////////////////////////////////////////////////////// +// LocalAccessible + +void ARIAGridCellAccessible::ApplyARIAState(uint64_t* aState) const { + HyperTextAccessible::ApplyARIAState(aState); + + // Return if the gridcell has aria-selected="true". + if (*aState & states::SELECTED) return; + + // Check aria-selected="true" on the row. + LocalAccessible* row = LocalParent(); + if (!row || row->Role() != roles::ROW) return; + + nsIContent* rowContent = row->GetContent(); + if (nsAccUtils::HasDefinedARIAToken(rowContent, nsGkAtoms::aria_selected) && + !nsAccUtils::ARIAAttrValueIs(rowContent->AsElement(), + nsGkAtoms::aria_selected, nsGkAtoms::_false, + eCaseMatters)) { + *aState |= states::SELECTABLE | states::SELECTED; + } +} + +already_AddRefed<AccAttributes> ARIAGridCellAccessible::NativeAttributes() { + RefPtr<AccAttributes> attributes = HyperTextAccessible::NativeAttributes(); + + // We only need to expose table-cell-index to clients. If we're in the content + // process, we don't need this, so building a CachedTableAccessible is very + // wasteful. This will be exposed by RemoteAccessible in the parent process + // instead. + if (!IPCAccessibilityActive()) { + if (const TableCellAccessible* cell = AsTableCell()) { + TableAccessible* table = cell->Table(); + const uint32_t row = cell->RowIdx(); + const uint32_t col = cell->ColIdx(); + const int32_t cellIdx = table->CellIndexAt(row, col); + if (cellIdx != -1) { + attributes->SetAttribute(nsGkAtoms::tableCellIndex, cellIdx); + } + } + } + + return attributes.forget(); +} |