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/* -*- 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_HTMLTableAccessible_h__
#define mozilla_a11y_HTMLTableAccessible_h__
#include "HyperTextAccessibleWrap.h"
#include "TableAccessible.h"
#include "TableCellAccessible.h"
class nsITableCellLayout;
namespace mozilla {
namespace a11y {
/**
* HTML table cell accessible (html:td).
*/
class HTMLTableCellAccessible : public HyperTextAccessibleWrap,
public TableCellAccessible
{
public:
HTMLTableCellAccessible(nsIContent* aContent, DocAccessible* aDoc);
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
// Accessible
virtual TableCellAccessible* AsTableCell() override { return this; }
virtual a11y::role NativeRole() override;
virtual uint64_t NativeState() override;
virtual uint64_t NativeInteractiveState() const override;
virtual already_AddRefed<nsIPersistentProperties> NativeAttributes() override;
virtual mozilla::a11y::GroupPos GroupPosition() override;
// TableCellAccessible
virtual TableAccessible* Table() const override;
virtual uint32_t ColIdx() const override;
virtual uint32_t RowIdx() const override;
virtual uint32_t ColExtent() const override;
virtual uint32_t RowExtent() const override;
virtual void ColHeaderCells(nsTArray<Accessible*>* aCells) override;
virtual void RowHeaderCells(nsTArray<Accessible*>* aCells) override;
virtual bool Selected() override;
protected:
virtual ~HTMLTableCellAccessible() {}
/**
* Return nsITableCellLayout of the table cell frame.
*/
nsITableCellLayout* GetCellLayout() const;
/**
* Return row and column indices of the cell.
*/
nsresult GetCellIndexes(int32_t& aRowIdx, int32_t& aColIdx) const;
};
/**
* HTML table row/column header accessible (html:th or html:td@scope).
*/
class HTMLTableHeaderCellAccessible : public HTMLTableCellAccessible
{
public:
HTMLTableHeaderCellAccessible(nsIContent* aContent, DocAccessible* aDoc);
// Accessible
virtual a11y::role NativeRole() override;
};
/**
* HTML table row accessible (html:tr).
*/
class HTMLTableRowAccessible : public AccessibleWrap
{
public:
HTMLTableRowAccessible(nsIContent* aContent, DocAccessible* aDoc) :
AccessibleWrap(aContent, aDoc)
{
mType = eHTMLTableRowType;
mGenericTypes |= eTableRow;
}
NS_DECL_ISUPPORTS_INHERITED
// Accessible
virtual a11y::role NativeRole() override;
virtual mozilla::a11y::GroupPos GroupPosition() override;
protected:
virtual ~HTMLTableRowAccessible() { }
};
/**
* HTML table accessible (html:table).
*/
// To turn on table debugging descriptions define SHOW_LAYOUT_HEURISTIC
// This allow release trunk builds to be used by testers to refine the
// data vs. layout heuristic
// #define SHOW_LAYOUT_HEURISTIC
class HTMLTableAccessible : public AccessibleWrap,
public TableAccessible
{
public:
HTMLTableAccessible(nsIContent* aContent, DocAccessible* aDoc) :
AccessibleWrap(aContent, aDoc)
{
mType = eHTMLTableType;
mGenericTypes |= eTable;
}
NS_DECL_ISUPPORTS_INHERITED
// TableAccessible
virtual Accessible* Caption() const override;
virtual void Summary(nsString& aSummary) override;
virtual uint32_t ColCount() override;
virtual uint32_t RowCount() override;
virtual Accessible* CellAt(uint32_t aRowIndex, uint32_t aColumnIndex) override;
virtual int32_t CellIndexAt(uint32_t aRowIdx, uint32_t aColIdx) override;
virtual int32_t ColIndexAt(uint32_t aCellIdx) override;
virtual int32_t RowIndexAt(uint32_t aCellIdx) override;
virtual void RowAndColIndicesAt(uint32_t aCellIdx, int32_t* aRowIdx,
int32_t* aColIdx) override;
virtual uint32_t ColExtentAt(uint32_t aRowIdx, uint32_t aColIdx) override;
virtual uint32_t RowExtentAt(uint32_t aRowIdx, uint32_t aColIdx) override;
virtual bool IsColSelected(uint32_t aColIdx) override;
virtual bool IsRowSelected(uint32_t aRowIdx) override;
virtual bool IsCellSelected(uint32_t aRowIdx, uint32_t aColIdx) override;
virtual uint32_t SelectedCellCount() override;
virtual uint32_t SelectedColCount() override;
virtual uint32_t SelectedRowCount() override;
virtual void SelectedCells(nsTArray<Accessible*>* aCells) override;
virtual void SelectedCellIndices(nsTArray<uint32_t>* aCells) override;
virtual void SelectedColIndices(nsTArray<uint32_t>* aCols) override;
virtual void SelectedRowIndices(nsTArray<uint32_t>* aRows) override;
virtual void SelectCol(uint32_t aColIdx) override;
virtual void SelectRow(uint32_t aRowIdx) override;
virtual void UnselectCol(uint32_t aColIdx) override;
virtual void UnselectRow(uint32_t aRowIdx) override;
virtual bool IsProbablyLayoutTable() override;
virtual Accessible* AsAccessible() override { return this; }
// Accessible
virtual TableAccessible* AsTable() override { return this; }
virtual void Description(nsString& aDescription) override;
virtual a11y::role NativeRole() override;
virtual uint64_t NativeState() override;
virtual already_AddRefed<nsIPersistentProperties> NativeAttributes() override;
virtual Relation RelationByType(RelationType aRelationType) override;
virtual bool InsertChildAt(uint32_t aIndex, Accessible* aChild) override;
protected:
virtual ~HTMLTableAccessible() {}
// Accessible
virtual ENameValueFlag NativeName(nsString& aName) override;
// HTMLTableAccessible
/**
* Add row or column to selection.
*
* @param aIndex [in] index of row or column to be selected
* @param aTarget [in] indicates what should be selected, either row or column
* (see nsISelectionPrivate)
*/
nsresult AddRowOrColumnToSelection(int32_t aIndex, uint32_t aTarget);
/**
* Removes rows or columns at the given index or outside it from selection.
*
* @param aIndex [in] row or column index
* @param aTarget [in] indicates whether row or column should unselected
* @param aIsOuter [in] indicates whether all rows or column excepting
* the given one should be unselected or the given one
* should be unselected only
*/
nsresult RemoveRowsOrColumnsFromSelection(int32_t aIndex,
uint32_t aTarget,
bool aIsOuter);
/**
* Return true if table has an element with the given tag name.
*
* @param aTagName [in] tag name of searched element
* @param aAllowEmpty [in, optional] points if found element can be empty
* or contain whitespace text only.
*/
bool HasDescendant(const nsAString& aTagName, bool aAllowEmpty = true);
#ifdef SHOW_LAYOUT_HEURISTIC
nsString mLayoutHeuristic;
#endif
};
/**
* HTML caption accessible (html:caption).
*/
class HTMLCaptionAccessible : public HyperTextAccessibleWrap
{
public:
HTMLCaptionAccessible(nsIContent* aContent, DocAccessible* aDoc) :
HyperTextAccessibleWrap(aContent, aDoc) { mType = eHTMLCaptionType; }
// Accessible
virtual a11y::role NativeRole() override;
virtual Relation RelationByType(RelationType aRelationType) override;
protected:
virtual ~HTMLCaptionAccessible() { }
};
} // namespace a11y
} // namespace mozilla
#endif
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