The Tor Browser: other-licenses/ia2/AccessibleTable.idl@97036ab72558 (annotated)

other-licenses/ia2/AccessibleTable.idl@97036ab72558 (annotated)

other-licenses/ia2/AccessibleTable.idl

Tue, 06 Jan 2015 21:39:09 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 06 Jan 2015 21:39:09 +0100
branch: TOR_BUG_9701
changeset 8: 97036ab72558
permissions: -rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 /*************************************************************************
  *
  *  File Name (AccessibleTable.idl)
  *
  *  IAccessible2 IDL Specification
  *
  *  Copyright (c) 2007, 2013 Linux Foundation
  *  Copyright (c) 2006 IBM Corporation
  *  Copyright (c) 2000, 2006 Sun Microsystems, 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 the Linux Foundation 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 THE COPYRIGHT HOLDERS AND
  *  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 THE COPYRIGHT HOLDER OR
  *  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.
  *
  *  This BSD License conforms to the Open Source Initiative "Simplified
  *  BSD License" as published at:
  *  http://www.opensource.org/licenses/bsd-license.php
  *
  *  IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
  *  mark may be used in accordance with the Linux Foundation Trademark
  *  Policy to indicate compliance with the IAccessible2 specification.
  *
  ************************************************************************/
 import "objidl.idl";
 import "oaidl.idl";
 import "oleacc.idl";
 import "Accessible2.idl";
 import "IA2CommonTypes.idl";
 /** @brief This interface gives access to a two-dimensional table.
  Typically all accessible objects that represent cells or cell-clusters of a table
   will be at the same time children of the table.  In this case IAccessible2::indexInParent
   will return the child index which then can be used when calling IAccessibleTable::rowIndex
   and IAccessibleTable::columnIndex.
  However, in some cases that kind of implementation will not be possible.  When
   the table cells are not direct children of a table, the object representing
   the cell can define a "table-cell-index" object attribute identifying the 0
   based table cell index.  This object attribute is obtained by parsing the
   attribute string returned by IAccessible2::attributes.  The "table-cell-index"
   attribute can be used just like a child index of the typical case.  ATs should
   first test for the presence of the "table-cell-index" attribute and if it is not
   present then IAccessible2::indexInParent can be used as in the typical case
   where cells are direct children of the table.
  The range of valid coordinates for this interface are implementation dependent.
   However, that range includes at least the intervals from the from the first row
   or column with the index 0 up to the last (but not including) used row or column
   as returned by IAccessibleTable::nRows and IAccessibleTable::nColumns.
  Note that newer implementations are now using IAccessibleTable2 and IAccessibleTableCell
   rather than this interface.
 */
 [object, uuid(35AD8070-C20C-4fb4-B094-F4F7275DD469)]
 interface IAccessibleTable : IUnknown
 {
   /** @brief Returns the accessible object at the specified row and column in
     the table.  This object could be an IAccessible or an IAccessible2.
    @param [in] row
     The 0 based row index for which to retrieve the cell.
    @param [in] column
     The 0 based column index for which to retrieve the cell.
    @param [out] accessible
     If both row and column index are valid then the corresponding accessible
     object is returned that represents the requested cell regardless of whether
     the cell is currently visible (on the screen).
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed, [out] value is NULL
   */
   [propget] HRESULT accessibleAt
     (
      [in] long row,
      [in] long column,
      [out, retval] IUnknown **accessible
     );
   /** @brief Returns the caption for the table.  The returned object could be
     an IAccessible or an IAccessible2.
    @param [out] accessible
     If the table has a caption then a reference to it is returned, else a NULL
     pointer is returned.
    @retval S_OK
    @retval S_FALSE if there is nothing to return, [out] value is NULL
   */
   [propget] HRESULT caption
     (
      [out, retval] IUnknown **accessible
     );
   /** @brief Translates the given row and column indexes into the corresponding cell index.
    @param [in] rowIndex
 based row index for the cell.
    @param [in] columnIndex
 based column index for the cell.
    @param [out] cellIndex
     Returns the 0 based index of the cell at the specified row and column indexes.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed, [out] value is 0
    @note The returned value is not necessarily a child index of the immediate parent.
     In cases where the table cells are not direct children of the table the index
     is actually the cell index, i.e. conceptually it's an index into a one dimensional
 	array of cells laid out in row order.
   */
   [propget] HRESULT childIndex
 	(
 	 [in] long rowIndex,
 	 [in] long columnIndex,
 	 [out, retval] long *cellIndex
 	);
   /** @brief Returns the description text of the specified column in the table.
    @param [in] column
     The 0 based index of the column for which to retrieve the description.
    @param [out] description
     Returns the description text of the specified column in the table if such a
     description exists.  Otherwise a NULL pointer is returned.
    @retval S_OK
    @retval S_FALSE if there is nothing to return, [out] value is NULL
    @retval E_INVALIDARG if bad [in] passed, [out] value is NULL
   */
   [propget] HRESULT columnDescription
     (
      [in] long column,
      [out, retval] BSTR *description
     );
   /** @brief Returns the number of columns occupied by the accessible object
     at the specified row and column in the table.
    The result is greater than 1 if the specified cell spans multiple columns.
    @param [in] row
 based row index of the accessible for which to return the column extent.
    @param [in] column
 based column index of the accessible for which to return the column extent.
    @param [out] nColumnsSpanned
     Returns the 1 based column extent of the specified cell.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed, [out] value is 0
   */
   [propget] HRESULT columnExtentAt
     (
      [in] long row,
      [in] long column,
      [out, retval] long *nColumnsSpanned
     );
   /** @brief Returns the column headers as an %IAccessibleTable object.
    Content and size of the returned table are implementation dependent.
    @param [out] accessibleTable
     The column header
    @param [out] startingRowIndex
     The 0 based row index where the header starts, usually 0.
    @retval S_OK
    @retval S_FALSE if there is no header, [out] values are NULL and 0 respectively
   */
   [propget] HRESULT columnHeader
     (
      [out] IAccessibleTable **accessibleTable,
 	 [out, retval] long *startingRowIndex
     );
   /** @brief Translates the given cell index into the corresponding column index.
    @param [in] cellIndex
 based index of the cell in the parent or closest ancestor table.  Typically this
 	is the value returned from IAccessible2::indexInParent, but in the case where the
 	table cells are not direct children of the table this is the cell index specified
 	by the "table-cell-index" object attribute obtained from parsing the attributes
 	string returned by calling IAccessible2::attributes on the cell object.
    @param [out] columnIndex
     Returns the 0 based column index of the cell of the specified child or the index of
     the first column if the child spans multiple columns.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed, [out] value is 0
   */
   [propget] HRESULT columnIndex
     (
 	 [in] long cellIndex,
 	 [out, retval] long *columnIndex
 	);
   /** @brief Returns the total number of columns in table
    @param [out] columnCount
     Number of columns in table (including columns outside the current viewport)
    @retval S_OK
   */
   [propget] HRESULT nColumns
     (
      [out, retval] long *columnCount
     );
   /** @brief Returns the total number of rows in table
    @param [out] rowCount
     Number of rows in table (including rows outside the current viewport)
    @retval S_OK
   */
   [propget] HRESULT nRows
     (
      [out, retval] long *rowCount
     );
   /** @brief Returns the total number of selected cells
    @param [out] cellCount
     Number of cells currently selected
    @retval S_OK
   */
   [propget] HRESULT nSelectedChildren
     (
 	 [out, retval] long *cellCount
 	);
   /** @brief Returns the total number of selected columns
    @param [out] columnCount
     Number of columns currently selected
    @retval S_OK
   */
   [propget] HRESULT nSelectedColumns
     (
      [out, retval] long *columnCount
     );
   /** @brief Returns the total number of selected rows
    @param [out] rowCount
     Number of rows currently selected
    @retval S_OK
   */
   [propget] HRESULT nSelectedRows
     (
      [out, retval] long *rowCount
     );
   /** @brief Returns the description text of the specified row in the table.
    @param [in] row
     The 0 based index of the row for which to retrieve the description.
    @param [out] description
     Returns the description text of the specified row in the table if such a
     description exists.  Otherwise a NULL pointer is returned.
    @retval S_OK
    @retval S_FALSE if there is nothing to return, [out] value is NULL
    @retval E_INVALIDARG if bad [in] passed, [out] value is NULL
   */
   [propget] HRESULT rowDescription
     (
      [in] long row,
      [out, retval] BSTR *description
     );
   /** @brief Returns the number of rows occupied by the accessible object
     at the specified row and column in the table.
    The result is greater than 1 if the specified cell spans multiple rows.
    @param [in] row
 based row index of the accessible for which to return the row extent.
    @param [in] column
 based column index of the accessible for which to return the row extent.
    @param [out] nRowsSpanned
     Returns the row extent of the specified cell.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed, [out] value is 0
   */
   [propget] HRESULT rowExtentAt
     (
      [in] long row,
      [in] long column,
      [out, retval] long *nRowsSpanned
     );
   /** @brief Returns the row headers as an %IAccessibleTable object.
    Content and size of the returned table are implementation dependent.
    @param [out] accessibleTable
     The row header.
    @param [out] startingColumnIndex
     The 0 based column index where the header starts, usually 0.
    @retval S_OK
    @retval S_FALSE if there is no header, [out] values are NULL and 0 respectively
   */
   [propget] HRESULT rowHeader
     (
      [out] IAccessibleTable **accessibleTable,
 	 [out, retval] long *startingColumnIndex
     );
   /** @brief Translates the given cell index into a row index.
    @param [in] cellIndex
 based index of the cell in the parent or closest ancestor table.  Typically this
 	is the value returned from IAccessible2::indexInParent, but in the case where the
 	table cells are not direct children of the table this is the cell index specified
 	by the "table-cell-index" object attribute obtained from parsing the attributes
 	string returned by calling IAccessible2::attributes on the cell object.
    @param [out] rowIndex
 based row index
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed, [out] value is 0
   */
   [propget] HRESULT rowIndex
     (
 	 [in] long cellIndex,
 	 [out, retval] long *rowIndex
 	);
   /** @brief Returns a list of cell indexes currently selected (0 based).
    @param [in] maxChildren
     This parameter is ignored. Refer to @ref _arrayConsideration
 	"Special Consideration when using Arrays" for more details.
    @param [out] children
     An array of cell indexes of selected cells (each index is 0 based),
 	allocated by the server. The client must free it with CoTaskMemFree.
    @param [out] nChildren
     The number of cell indexes returned; the size of the returned array.
    @retval S_OK
    @retval S_FALSE if there are none, [out] values are NULL and 0 respectively
   */
   [propget] HRESULT selectedChildren
     (
      [in] long maxChildren,
      [out, size_is(,maxChildren), length_is(,*nChildren)] long **children,
      [out, retval] long *nChildren
     );
   /** @brief Returns a list of column indexes currently selected (0 based).
    @param [in] maxColumns
     This parameter is ignored. Refer to @ref _arrayConsideration
 	"Special Consideration when using Arrays" for more details.
    @param [out] columns
 	An array of column indexes of selected columns (each index is 0 based), allocated
 	by the server. The client must free it with CoTaskMemFree.
    @param [out] nColumns
     The number of column indexes returned; the size of the returned array.
    @retval S_OK
    @retval S_FALSE if there are none, [out] values are NULL and 0 respectively
   */
   [propget] HRESULT selectedColumns
     (
      [in] long maxColumns,
      [out, size_is(,maxColumns), length_is(,*nColumns)] long **columns,
      [out, retval] long *nColumns
     );
   /** @brief Returns a list of row indexes currently selected (0 based).
    @param [in] maxRows
     This parameter is ignored. Refer to @ref _arrayConsideration
 	"Special Consideration when using Arrays" for more details.
    @param [out] rows
     An array of row indexes of selected rows (each index is 0 based), allocated
 	by the server. The client must free it with CoTaskMemFree.
    @param [out] nRows
     The number of row indexes returned; the size of the returned array.
    @retval S_OK
    @retval S_FALSE if there are none, [out] values are NULL and 0 respectively
   */
   [propget] HRESULT selectedRows
     (
      [in] long maxRows,
      [out, size_is(,maxRows), length_is(,*nRows)] long **rows,
      [out, retval] long *nRows
     );
   /** @brief Returns the summary description of the table.  The returned object could be
     an IAccessible or an IAccessible2.
    @param [out] accessible
     Returns a reference to an implementation dependent accessible object
     representing the table's summary or a NULL pointer if the table
     does not support a summary.
    @retval S_OK
    @retval S_FALSE if there is nothing to return, [out] value is NULL
   */
   [propget] HRESULT summary
     (
      [out, retval] IUnknown **accessible
     );
   /** @brief Returns a boolean value indicating whether the specified column is
     completely selected.
    @param [in] column
 based index of the column for which to determine whether it is selected.
    @param [out] isSelected
     Returns TRUE if the specified column is selected completely and FALSE otherwise.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed, [out] value is FALSE
   */
   [propget] HRESULT isColumnSelected
     (
      [in] long column,
      [out, retval] boolean *isSelected
     );
   /** @brief Returns a boolean value indicating whether the specified row is completely
     selected.
    @param [in] row
 based index of the row for which to determine whether it is selected.
    @param [out] isSelected
     Returns TRUE if the specified row is selected completely and FALSE otherwise.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed, [out] value is FALSE
   */
   [propget] HRESULT isRowSelected
     (
      [in] long row,
      [out, retval] boolean *isSelected
     );
   /** @brief Returns a boolean value indicating whether the specified cell is selected.
    @param [in] row
 based index of the row for the cell to determine whether it is selected.
    @param [in] column
 based index of the column for the cell to determine whether it is selected.
    @param [out] isSelected
     Returns TRUE if the specified cell is selected and FALSE otherwise.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed, [out] value is FALSE
   */
   [propget] HRESULT isSelected
     (
      [in] long row,
      [in] long column,
      [out, retval] boolean *isSelected
     );
   /** @brief Selects a row and unselects all previously selected rows.
    @param [in] row
 based index of the row to be selected.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed
   */
   HRESULT selectRow
     (
      [in] long row
     );
   /** @brief Selects a column and unselects all previously selected columns.
    @param [in] column
 based index of the column to be selected.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed
   */
   HRESULT selectColumn
     (
      [in] long column
     );
   /** @brief Unselects one row, leaving other selected rows selected (if any).
    @param [in] row
 based index of the row to be unselected.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed
   */
   HRESULT unselectRow
     (
      [in] long row
     );
   /** @brief Unselects one column, leaving other selected columns selected (if any).
    @param [in] column
 based index of the column to be unselected.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed
   */
   HRESULT unselectColumn
     (
      [in] long column
     );
   /** @brief Given a cell index, gets the row and column indexes and extents of a cell
     and whether or not it is selected.
    This is a convenience function.  It is not mandatory to implement it.
    @param [in] index
 based index of this cell in the table.
    @param [out] row
 based row index.
    @param [out] column
 based column index.
    @param [out] rowExtents
     Number of cells spanned by this cell in this row.
    @param [out] columnExtents
     Number of cells spanned by this cell in this column.
    @param [out] isSelected
     Indicates if the specified cell is selected.
    @retval S_OK
    @retval E_INVALIDARG if bad [in] passed, [out] values are 0s and FALSE respectively
   */
   [propget] HRESULT rowColumnExtentsAtIndex
     (
 	 [in] long index,
 	 [out] long *row,
 	 [out] long *column,
 	 [out] long *rowExtents,
 	 [out] long *columnExtents,
 	 [out, retval] boolean *isSelected
 	);
   /** @brief Returns the type and extents describing how a table changed.
    Provided for use by the IA2_EVENT_TABLE_MODEL_CHANGED event handler.
    This data is only guaranteed to be valid while the thread notifying the event
    continues. Once the handler has returned, the validity of the data depends on
    how the server manages the life cycle of its objects. Also, note that the server
    may have different life cycle management strategies for controls depending on
    whether or not a control manages its children. Lists, trees, and tables can have
    a large number of children and thus it's possible that the child objects for those
    controls would only be created as needed. Servers should document their life cycle
    strategy as this will be of interest to assistive technology or script engines
    accessing data out of process or from other threads. Servers only need to save the
    most recent row and column values associated with the change and a scope of the
    entire application is adequate.
    @param [out] modelChange
     A struct of (type(insert, delete, update), firstRow, lastRow, firstColumn, lastColumn).
    @retval S_OK
    @retval S_FALSE if there is nothing to return, [out] value is NULL
   */
   [propget] HRESULT modelChange
     (
 	 [out, retval] IA2TableModelChange *modelChange
     );
 }

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