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      1 /*
      2  * Copyright (C) 2009 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include "config.h"
     30 #include "AccessibilityARIAGridCell.h"
     31 
     32 #include "AccessibilityObject.h"
     33 #include "AccessibilityTableRow.h"
     34 
     35 using namespace std;
     36 
     37 namespace WebCore {
     38 
     39 AccessibilityARIAGridCell::AccessibilityARIAGridCell(RenderObject* renderer)
     40     : AccessibilityTableCell(renderer)
     41 {
     42 }
     43 
     44 AccessibilityARIAGridCell::~AccessibilityARIAGridCell()
     45 {
     46 }
     47 
     48 PassRefPtr<AccessibilityARIAGridCell> AccessibilityARIAGridCell::create(RenderObject* renderer)
     49 {
     50     return adoptRef(new AccessibilityARIAGridCell(renderer));
     51 }
     52 
     53 AccessibilityObject* AccessibilityARIAGridCell::parentTable() const
     54 {
     55     AccessibilityObject* parent = parentObjectUnignored();
     56     if (!parent || !parent->isTableRow())
     57         return 0;
     58 
     59     parent = parent->parentObjectUnignored();
     60     if (!parent || !parent->isDataTable())
     61         return 0;
     62 
     63     return parent;
     64 }
     65 
     66 void AccessibilityARIAGridCell::rowIndexRange(pair<int, int>& rowRange)
     67 {
     68     AccessibilityObject* parent = parentObjectUnignored();
     69     if (!parent || !parent->isTableRow())
     70         return;
     71 
     72     // as far as I can tell, grid cells cannot span rows
     73     rowRange.first = static_cast<AccessibilityTableRow*>(parent)->rowIndex();
     74     rowRange.second = 1;
     75 }
     76 
     77 void AccessibilityARIAGridCell::columnIndexRange(pair<int, int>& columnRange)
     78 {
     79     AccessibilityObject* parent = parentObjectUnignored();
     80     if (!parent || !parent->isTableRow())
     81         return;
     82 
     83     AccessibilityChildrenVector siblings = parent->children();
     84     unsigned childrenSize = siblings.size();
     85     for (unsigned k = 0; k < childrenSize; ++k) {
     86         if (siblings[k].get() == this) {
     87             columnRange.first = k;
     88             break;
     89         }
     90     }
     91 
     92     // as far as I can tell, grid cells cannot span columns
     93     columnRange.second = 1;
     94 }
     95 
     96 } // namespace WebCore
     97