1 files changed, 187 insertions, 0 deletions
diff --git a/accessible/generic/TableAccessible.h b/accessible/generic/TableAccessible.h
new file mode 100644
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+++ b/accessible/generic/TableAccessible.h
@@ -0,0 +1,187 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* 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 TABLE_ACCESSIBLE_H
+#define TABLE_ACCESSIBLE_H
+
+#include "nsString.h"
+#include "nsTArray.h"
+
+namespace mozilla {
+namespace a11y {
+
+class Accessible;
+
+/**
+ * Accessible table interface.
+ */
+class TableAccessible
+{
+public:
+
+  /**
+   * Return the caption accessible if any for this table.
+   */
+  virtual Accessible* Caption() const { return nullptr; }
+
+  /**
+   * Get the summary for this table.
+   */
+  virtual void Summary(nsString& aSummary) { aSummary.Truncate(); }
+
+  /**
+   * Return the number of columns in the table.
+   */
+  virtual uint32_t ColCount() { return 0; }
+
+  /**
+   * Return the number of rows in the table.
+   */
+  virtual uint32_t RowCount() { return 0; }
+
+  /**
+   * Return the accessible for the cell at the given row and column indices.
+   */
+  virtual Accessible* CellAt(uint32_t aRowIdx, uint32_t aColIdx) { return nullptr; }
+
+  /**
+   * Return the index of the cell at the given row and column.
+   */
+  virtual int32_t CellIndexAt(uint32_t aRowIdx, uint32_t aColIdx)
+    { return ColCount() * aRowIdx + aColIdx; }
+
+  /**
+   * Return the column index of the cell with the given index.
+   */
+  virtual int32_t ColIndexAt(uint32_t aCellIdx) 
+    { return aCellIdx % ColCount(); }
+
+  /**
+   * Return the row index of the cell with the given index.
+   */
+  virtual int32_t RowIndexAt(uint32_t aCellIdx) 
+    { return aCellIdx / ColCount(); }
+
+  /**
+   * Get the row and column indices for the cell at the given index.
+   */
+  virtual void RowAndColIndicesAt(uint32_t aCellIdx, int32_t* aRowIdx,
+                                  int32_t* aColIdx) 
+    { 
+      uint32_t colCount = ColCount();
+      *aRowIdx = aCellIdx / colCount;
+      *aColIdx = aCellIdx % colCount;
+    }
+
+  /**
+   * Return the number of columns occupied by the cell at the given row and
+   * column indices.
+   */
+  virtual uint32_t ColExtentAt(uint32_t aRowIdx, uint32_t aColIdx) { return 1; }
+
+  /**
+   * Return the number of rows occupied by the cell at the given row and column
+   * indices.
+   */
+  virtual uint32_t RowExtentAt(uint32_t aRowIdx, uint32_t aColIdx) { return 1; }
+
+  /**
+   * Get the description of the given column.
+   */
+  virtual void ColDescription(uint32_t aColIdx, nsString& aDescription)
+    { aDescription.Truncate(); }
+
+  /**
+   * Get the description for the given row.
+   */
+  virtual void RowDescription(uint32_t aRowIdx, nsString& aDescription)
+    { aDescription.Truncate(); }
+
+  /**
+   * Return true if the given column is selected.
+   */
+  virtual bool IsColSelected(uint32_t aColIdx) { return false; }
+
+  /**
+   * Return true if the given row is selected.
+   */
+  virtual bool IsRowSelected(uint32_t aRowIdx) { return false; }
+
+  /**
+   * Return true if the given cell is selected.
+   */
+  virtual bool IsCellSelected(uint32_t aRowIdx, uint32_t aColIdx) { return false; }
+
+  /**
+   * Return the number of selected cells.
+   */
+  virtual uint32_t SelectedCellCount() { return 0; }
+
+  /**
+   * Return the number of selected columns.
+   */
+  virtual uint32_t SelectedColCount() { return 0; }
+
+  /**
+   * Return the number of selected rows.
+   */
+  virtual uint32_t SelectedRowCount() { return 0; }
+
+  /**
+   * Get the set of selected cells.
+   */
+  virtual void SelectedCells(nsTArray<Accessible*>* aCells) = 0;
+
+  /**
+   * Get the set of selected cell indices.
+   */
+  virtual void SelectedCellIndices(nsTArray<uint32_t>* aCells) = 0;
+
+  /**
+   * Get the set of selected column indices.
+   */
+  virtual void SelectedColIndices(nsTArray<uint32_t>* aCols) = 0;
+
+  /**
+   * Get the set of selected row indices.
+   */
+  virtual void SelectedRowIndices(nsTArray<uint32_t>* aRows) = 0;
+
+  /**
+   * Select the given column unselecting any other selected columns.
+   */
+  virtual void SelectCol(uint32_t aColIdx) {}
+
+  /**
+   * Select the given row unselecting all other previously selected rows.
+   */
+  virtual void SelectRow(uint32_t aRowIdx) {}
+
+  /**
+   * Unselect the given column leaving other selected columns selected.
+   */
+  virtual void UnselectCol(uint32_t aColIdx) {}
+
+  /**
+   * Unselect the given row leaving other selected rows selected.
+   */
+  virtual void UnselectRow(uint32_t aRowIdx) {}
+
+  /**
+   * Return true if the table is probably for layout.
+   */
+  virtual bool IsProbablyLayoutTable() { return false; }
+
+  /**
+   * Convert the table to an Accessible*.
+   */
+  virtual Accessible* AsAccessible() = 0;
+};
+
+} // namespace a11y
+} // namespace mozilla
+
+#endif