Create Source/modules/accessibility/ and move most of core/accessibility/* into it

Source/core/accessibility/AXTableCell.cpp

-/*
- * 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 Computer, 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.
- */
-
-#include "config.h"
-#include "core/accessibility/AXTableCell.h"
-
-#include "core/accessibility/AXObjectCacheImpl.h"
-#include "core/rendering/RenderTableCell.h"
-
-
-namespace blink {
-
-using namespace HTMLNames;
-
-AXTableCell::AXTableCell(RenderObject* renderer)
-    : AXRenderObject(renderer)
-{
-}
-
-AXTableCell::~AXTableCell()
-{
-}
-
-PassRefPtr<AXTableCell> AXTableCell::create(RenderObject* renderer)
-{
-    return adoptRef(new AXTableCell(renderer));
-}
-
-bool AXTableCell::computeAccessibilityIsIgnored() const
-{
-    AXObjectInclusion decision = defaultObjectInclusion();
-    if (decision == IncludeObject)
-        return false;
-    if (decision == IgnoreObject)
-        return true;
-
-    if (!isTableCell())
-        return AXRenderObject::computeAccessibilityIsIgnored();
-
-    return false;
-}
-
-AXObject* AXTableCell::parentTable() const
-{
-    if (!m_renderer || !m_renderer->isTableCell())
-        return 0;
-
-    // If the document no longer exists, we might not have an axObjectCache.
-    if (!axObjectCache())
-        return 0;
-
-    // Do not use getOrCreate. parentTable() can be called while the render tree is being modified
-    // by javascript, and creating a table element may try to access the render tree while in a bad state.
-    // By using only get() implies that the AXTable must be created before AXTableCells. This should
-    // always be the case when AT clients access a table.
-    // https://bugs.webkit.org/show_bug.cgi?id=42652
-    return axObjectCache()->get(toRenderTableCell(m_renderer)->table());
-}
-
-bool AXTableCell::isTableCell() const
-{
-    AXObject* parent = parentObjectUnignored();
-    if (!parent || !parent->isTableRow())
-        return false;
-
-    return true;
-}
-
-AccessibilityRole AXTableCell::determineAccessibilityRole()
-{
-    if (!isTableCell())
-        return AXRenderObject::determineAccessibilityRole();
-
-    return CellRole;
-}
-
-void AXTableCell::rowIndexRange(pair<unsigned, unsigned>& rowRange)
-{
-    if (!m_renderer || !m_renderer->isTableCell())
-        return;
-
-    RenderTableCell* renderCell = toRenderTableCell(m_renderer);
-    rowRange.first = renderCell->rowIndex();
-    rowRange.second = renderCell->rowSpan();
-
-    // since our table might have multiple sections, we have to offset our row appropriately
-    RenderTableSection* section = renderCell->section();
-    RenderTable* table = renderCell->table();
-    if (!table || !section)
-        return;
-
-    RenderTableSection* tableSection = table->topSection();
-    unsigned rowOffset = 0;
-    while (tableSection) {
-        if (tableSection == section)
-            break;
-        rowOffset += tableSection->numRows();
-        tableSection = table->sectionBelow(tableSection, SkipEmptySections);
-    }
-
-    rowRange.first += rowOffset;
-}
-
-void AXTableCell::columnIndexRange(pair<unsigned, unsigned>& columnRange)
-{
-    if (!m_renderer || !m_renderer->isTableCell())
-        return;
-
-    RenderTableCell* renderCell = toRenderTableCell(m_renderer);
-    columnRange.first = renderCell->col();
-    columnRange.second = renderCell->colSpan();
-}
-
-AXObject* AXTableCell::titleUIElement() const
-{
-    // Try to find if the first cell in this row is a <th>. If it is,
-    // then it can act as the title ui element. (This is only in the
-    // case when the table is not appearing as an AXTable.)
-    if (isTableCell() || !m_renderer || !m_renderer->isTableCell())
-        return 0;
-
-    // Table cells that are th cannot have title ui elements, since by definition
-    // they are title ui elements
-    Node* node = m_renderer->node();
-    if (node && node->hasTagName(thTag))
-        return 0;
-
-    RenderTableCell* renderCell = toRenderTableCell(m_renderer);
-
-    // If this cell is in the first column, there is no need to continue.
-    int col = renderCell->col();
-    if (!col)
-        return 0;
-
-    int row = renderCell->rowIndex();
-
-    RenderTableSection* section = renderCell->section();
-    if (!section)
-        return 0;
-
-    RenderTableCell* headerCell = section->primaryCellAt(row, 0);
-    if (!headerCell || headerCell == renderCell)
-        return 0;
-
-    Node* cellElement = headerCell->node();
-    if (!cellElement || !cellElement->hasTagName(thTag))
-        return 0;
-
-    return axObjectCache()->getOrCreate(headerCell);
-}
-
-} // namespace blink