gecko/accessible/generic/ARIAGridAccessible.h
2014-10-21 20:49:28 -04:00

125 lines
3.6 KiB
C++

/* -*- 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/. */
#ifndef MOZILLA_A11Y_ARIAGridAccessible_h_
#define MOZILLA_A11Y_ARIAGridAccessible_h_
#include "HyperTextAccessibleWrap.h"
#include "TableAccessible.h"
#include "TableCellAccessible.h"
namespace mozilla {
namespace a11y {
/**
* Accessible for ARIA grid and treegrid.
*/
class ARIAGridAccessible : public AccessibleWrap,
public TableAccessible
{
public:
ARIAGridAccessible(nsIContent* aContent, DocAccessible* aDoc);
NS_DECL_ISUPPORTS_INHERITED
// Accessible
virtual TableAccessible* AsTable() { return this; }
// TableAccessible
virtual uint32_t ColCount();
virtual uint32_t RowCount();
virtual Accessible* CellAt(uint32_t aRowIndex, uint32_t aColumnIndex);
virtual bool IsColSelected(uint32_t aColIdx);
virtual bool IsRowSelected(uint32_t aRowIdx);
virtual bool IsCellSelected(uint32_t aRowIdx, uint32_t aColIdx);
virtual uint32_t SelectedCellCount();
virtual uint32_t SelectedColCount();
virtual uint32_t SelectedRowCount();
virtual void SelectedCells(nsTArray<Accessible*>* aCells);
virtual void SelectedCellIndices(nsTArray<uint32_t>* aCells);
virtual void SelectedColIndices(nsTArray<uint32_t>* aCols);
virtual void SelectedRowIndices(nsTArray<uint32_t>* aRows);
virtual void SelectCol(uint32_t aColIdx);
virtual void SelectRow(uint32_t aRowIdx);
virtual void UnselectCol(uint32_t aColIdx);
virtual void UnselectRow(uint32_t aRowIdx);
virtual Accessible* AsAccessible() { return this; }
protected:
virtual ~ARIAGridAccessible() {}
/**
* Return row accessible at the given row index.
*/
Accessible* GetRowAt(int32_t aRow);
/**
* Return cell accessible at the given column index in the row.
*/
Accessible* GetCellInRowAt(Accessible* aRow, int32_t aColumn);
/**
* Set aria-selected attribute value on DOM node of the given accessible.
*
* @param aAccessible [in] accessible
* @param aIsSelected [in] new value of aria-selected attribute
* @param aNotify [in, optional] specifies if DOM should be notified
* about attribute change (used internally).
*/
nsresult SetARIASelected(Accessible* aAccessible, bool aIsSelected,
bool aNotify = true);
};
/**
* Accessible for ARIA gridcell and rowheader/columnheader.
*/
class ARIAGridCellAccessible : public HyperTextAccessibleWrap,
public TableCellAccessible
{
public:
ARIAGridCellAccessible(nsIContent* aContent, DocAccessible* aDoc);
NS_DECL_ISUPPORTS_INHERITED
// Accessible
virtual TableCellAccessible* AsTableCell() { return this; }
virtual void ApplyARIAState(uint64_t* aState) const;
virtual already_AddRefed<nsIPersistentProperties> NativeAttributes() MOZ_OVERRIDE;
protected:
virtual ~ARIAGridCellAccessible() {}
/**
* Return a containing row.
*/
Accessible* Row() const
{
Accessible* row = Parent();
return row && row->Role() == roles::ROW ? row : nullptr;
}
/**
* Return a table for the given row.
*/
Accessible* TableFor(Accessible* aRow) const;
/**
* Return index of the given row.
*/
int32_t RowIndexFor(Accessible* aRow) const;
// TableCellAccessible
virtual TableAccessible* Table() const MOZ_OVERRIDE;
virtual uint32_t ColIdx() const MOZ_OVERRIDE;
virtual uint32_t RowIdx() const MOZ_OVERRIDE;
virtual bool Selected() MOZ_OVERRIDE;
};
} // namespace a11y
} // namespace mozilla
#endif