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/*
* Copyright (C) 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "AccessibilityRenderObject.h"
#include <wtf/Forward.h>
namespace WebCore {
class AccessibilityTableRow;
class HTMLTableElement;
class AccessibilityTable : public AccessibilityRenderObject {
public:
static Ref<AccessibilityTable> create(AXID, RenderObject&);
static Ref<AccessibilityTable> create(AXID, Node&);
virtual ~AccessibilityTable();
void init() final;
virtual bool isAriaTable() const { return false; }
void addChildren() final;
void clearChildren() final;
void updateChildrenRoles();
AccessibilityChildrenVector columns() final;
AccessibilityChildrenVector rows() final;
unsigned columnCount() final;
unsigned rowCount() final;
String title() const final;
// all the cells in the table
AccessibilityChildrenVector cells() final;
AccessibilityObject* cellForColumnAndRow(unsigned column, unsigned row) final;
AccessibilityChildrenVector rowHeaders() final;
AccessibilityChildrenVector visibleRows() final;
// Returns an object that contains, as children, all the objects that act as headers.
AccessibilityObject* headerContainer() final;
bool isTable() const final { return true; }
// Returns whether it is exposed as an AccessibilityTable to the platform.
bool isExposable() const final { return m_isExposable; }
void recomputeIsExposable();
int axColumnCount() const final;
int axRowCount() const final;
// Cell indexes are assigned during child creation, so make sure children are up-to-date.
void ensureCellIndexesUpToDate() { updateChildrenIfNecessary(); }
Vector<Vector<Markable<AXID>>> cellSlots() final;
void setCellSlotsDirty();
protected:
explicit AccessibilityTable(AXID, RenderObject&);
explicit AccessibilityTable(AXID, Node&);
AccessibilityChildrenVector m_rows;
AccessibilityChildrenVector m_columns;
// 2D matrix of the cells assigned to each "slot" in this table.
// ("Slot" as defined here: https://html.spec.whatwg.org/multipage/tables.html#concept-slots)
Vector<Vector<Markable<AXID>>> m_cellSlots;
RefPtr<AccessibilityObject> m_headerContainer;
bool m_isExposable;
// Used in type checking function is<AccessibilityTable>.
bool isAccessibilityTableInstance() const final { return true; }
bool computeIsIgnored() const final;
void addRow(AccessibilityTableRow&, unsigned, unsigned& maxColumnCount);
private:
AccessibilityRole determineAccessibilityRole() final;
virtual bool computeIsTableExposableThroughAccessibility() const { return isDataTable(); }
void labelText(Vector<AccessibilityText>&) const final;
HTMLTableElement* tableElement() const;
// Returns the number of columns the table should have.
unsigned computeCellSlots();
void ensureRow(unsigned);
void ensureRowAndColumn(unsigned /* rowIndex */, unsigned /* columnIndex */);
bool hasNonTableARIARole() const;
// isDataTable is whether it is exposed as an AccessibilityTable because the heuristic
// think this "looks" like a data-based table (instead of a table used for layout).
bool isDataTable() const;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_ACCESSIBILITY(AccessibilityTable, isAccessibilityTableInstance())
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