ARIA 1.1: implementation for aria-col-* and aria-row-*.

third_party/WebKit/public/web/WebAXObject.h

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 245 matching lines @@
   BLINK_EXPORT bool increment() const;
   BLINK_EXPORT bool decrement() const;
   BLINK_EXPORT void setFocused(bool) const;
   BLINK_EXPORT void setSelectedTextRange(int selectionStart,
                                          int selectionEnd) const;
   BLINK_EXPORT void setSequentialFocusNavigationStartingPoint() const;
   BLINK_EXPORT void setValue(WebString) const;
   BLINK_EXPORT void showContextMenu() const;
 
   // For a table
+  BLINK_EXPORT int ariaColumnCount() const;

[dcheng, 2016/12/16 08:53:42]

Why are some ints and others unsigned?

[dmazzoni, 2016/12/20 18:16:32]

The spec allows aria-colcount="-1" to indicate an "unknown" number of columns,
and similarly for the row count.  The index of each column or row must be
unsigned, though.

+  BLINK_EXPORT unsigned ariaColumnIndex() const;
+  BLINK_EXPORT int ariaRowCount() const;
+  BLINK_EXPORT unsigned ariaRowIndex() const;
   BLINK_EXPORT unsigned columnCount() const;
   BLINK_EXPORT unsigned rowCount() const;
   BLINK_EXPORT WebAXObject cellForColumnAndRow(unsigned column,
                                                unsigned row) const;
   BLINK_EXPORT WebAXObject headerContainerObject() const;
   BLINK_EXPORT WebAXObject rowAtIndex(unsigned rowIndex) const;
   BLINK_EXPORT WebAXObject columnAtIndex(unsigned columnIndex) const;
   BLINK_EXPORT void rowHeaders(WebVector<WebAXObject>&) const;
   BLINK_EXPORT void columnHeaders(WebVector<WebAXObject>&) const;
 
@@ skipping 61 matching lines @@
   operator AXObject*() const;
 #endif
 
  private:
   WebPrivatePtr<AXObject> m_private;
 };
 
 }  // namespace blink
 
 #endif