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525 строки
19 KiB
Plaintext
525 строки
19 KiB
Plaintext
/*************************************************************************
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*
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* File Name (AccessibleTable.idl)
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*
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* IAccessible2 IDL Specification
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*
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* Copyright (c) Linux Foundation 2007, 2009
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* Copyright (c) IBM Corp. 2006
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* Copyright (c) Sun Microsystems, Inc. 2000, 2006
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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************************************************************************/
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import "objidl.idl";
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import "oaidl.idl";
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import "oleacc.idl";
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import "Accessible2.idl";
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import "IA2CommonTypes.idl";
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/** @brief This interface gives access to a two-dimensional table.
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Typically all accessible objects that represent cells or cell-clusters of a table
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will be at the same time children of the table. In this case IAccessible2::indexInParent
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will return the child index which then can be used when calling IAccessibleTable::rowIndex
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and IAccessibleTable::columnIndex.
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However, in some cases that kind of implementation will not be possible. When
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the table cells are not direct children of a table, the object representing
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the cell can define a "table-cell-index" object attribute identifying the 0
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based table cell index. This object attribute is obtained by parsing the
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attribute string returned by IAccessible2::attributes. The "table-cell-index"
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attribute can be used just like a child index of the typical case. ATs should
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first test for the presence of the "table-cell-index" attribute and if it is not
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present then IAccessible2::indexInParent can be used as in the typical case
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where cells are direct children of the table.
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The range of valid coordinates for this interface are implementation dependent.
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However, that range includes at least the intervals from the from the first row
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or column with the index 0 up to the last (but not including) used row or column
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as returned by IAccessibleTable::nRows and IAccessibleTable::nColumns.
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Note that newer implementations are now using IAccessibleTable2 and IAccessibleTableCell
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rather than this interface.
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*/
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[object, uuid(35AD8070-C20C-4fb4-B094-F4F7275DD469)]
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interface IAccessibleTable : IUnknown
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{
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/** @brief Returns the accessible object at the specified row and column in
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the table. This object could be an IAccessible or an IAccessible2.
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@param [in] row
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The 0 based row index for which to retrieve the cell.
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@param [in] column
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The 0 based column index for which to retrieve the cell.
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@param [out] accessible
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If both row and column index are valid then the corresponding accessible
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object is returned that represents the requested cell regardless of whether
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the cell is currently visible (on the screen).
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed, [out] value is NULL
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*/
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[propget] HRESULT accessibleAt
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(
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[in] long row,
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[in] long column,
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[out, retval] IUnknown **accessible
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);
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/** @brief Returns the caption for the table. The returned object could be
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an IAccessible or an IAccessible2.
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@param [out] accessible
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If the table has a caption then a reference to it is returned, else a NULL
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pointer is returned.
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@retval S_OK
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@retval S_FALSE if there is nothing to return, [out] value is NULL
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*/
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[propget] HRESULT caption
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(
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[out, retval] IUnknown **accessible
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);
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/** @brief Translates the given row and column indexes into the corresponding cell index.
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@param [in] rowIndex
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0 based row index for the cell.
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@param [in] columnIndex
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0 based column index for the cell.
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@param [out] cellIndex
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Returns the 0 based index of the cell at the specified row and column indexes.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed, [out] value is 0
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@note The returned value is not necessarily a child index of the immediate parent.
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In cases where the table cells are not direct children of the table the index
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is actually the cell index, i.e. conceptually it's an index into a one dimensional
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array of cells laid out in row order.
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*/
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[propget] HRESULT childIndex
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(
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[in] long rowIndex,
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[in] long columnIndex,
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[out, retval] long *cellIndex
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);
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/** @brief Returns the description text of the specified column in the table.
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@param [in] column
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The 0 based index of the column for which to retrieve the description.
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@param [out] description
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Returns the description text of the specified column in the table if such a
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description exists. Otherwise a NULL pointer is returned.
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@retval S_OK
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@retval S_FALSE if there is nothing to return, [out] value is NULL
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@retval E_INVALIDARG if bad [in] passed, [out] value is NULL
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*/
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[propget] HRESULT columnDescription
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(
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[in] long column,
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[out, retval] BSTR *description
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);
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/** @brief Returns the number of columns occupied by the accessible object
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at the specified row and column in the table.
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The result is greater than 1 if the specified cell spans multiple columns.
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@param [in] row
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0 based row index of the accessible for which to return the column extent.
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@param [in] column
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0 based column index of the accessible for which to return the column extent.
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@param [out] nColumnsSpanned
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Returns the 1 based column extent of the specified cell.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed, [out] value is 0
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*/
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[propget] HRESULT columnExtentAt
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(
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[in] long row,
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[in] long column,
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[out, retval] long *nColumnsSpanned
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);
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/** @brief Returns the column headers as an %IAccessibleTable object.
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Content and size of the returned table are implementation dependent.
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@param [out] accessibleTable
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The column header
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@param [out] startingRowIndex
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The 0 based row index where the header starts, usually 0.
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@retval S_OK
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@retval S_FALSE if there is no header, [out] values are NULL and 0 respectively
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*/
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[propget] HRESULT columnHeader
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(
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[out] IAccessibleTable **accessibleTable,
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[out, retval] long *startingRowIndex
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);
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/** @brief Translates the given cell index into the corresponding column index.
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@param [in] cellIndex
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0 based index of the cell in the parent or closest ancestor table. Typically this
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is the value returned from IAccessible2::indexInParent, but in the case where the
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table cells are not direct children of the table this is the cell index specified
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by the "table-cell-index" object attribute obtained from parsing the attributes
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string returned by calling IAccessible2::attributes on the cell object.
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@param [out] columnIndex
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Returns the 0 based column index of the cell of the specified child or the index of
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the first column if the child spans multiple columns.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed, [out] value is 0
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*/
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[propget] HRESULT columnIndex
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(
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[in] long cellIndex,
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[out, retval] long *columnIndex
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);
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/** @brief Returns the total number of columns in table
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@param [out] columnCount
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Number of columns in table (including columns outside the current viewport)
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@retval S_OK
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*/
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[propget] HRESULT nColumns
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(
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[out, retval] long *columnCount
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);
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/** @brief Returns the total number of rows in table
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@param [out] rowCount
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Number of rows in table (including rows outside the current viewport)
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@retval S_OK
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*/
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[propget] HRESULT nRows
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(
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[out, retval] long *rowCount
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);
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/** @brief Returns the total number of selected cells
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@param [out] cellCount
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Number of cells currently selected
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@retval S_OK
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*/
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[propget] HRESULT nSelectedChildren
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(
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[out, retval] long *cellCount
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);
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/** @brief Returns the total number of selected columns
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@param [out] columnCount
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Number of columns currently selected
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@retval S_OK
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*/
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[propget] HRESULT nSelectedColumns
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(
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[out, retval] long *columnCount
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);
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/** @brief Returns the total number of selected rows
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@param [out] rowCount
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Number of rows currently selected
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@retval S_OK
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*/
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[propget] HRESULT nSelectedRows
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(
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[out, retval] long *rowCount
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);
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/** @brief Returns the description text of the specified row in the table.
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@param [in] row
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The 0 based index of the row for which to retrieve the description.
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@param [out] description
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Returns the description text of the specified row in the table if such a
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description exists. Otherwise a NULL pointer is returned.
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@retval S_OK
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@retval S_FALSE if there is nothing to return, [out] value is NULL
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@retval E_INVALIDARG if bad [in] passed, [out] value is NULL
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*/
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[propget] HRESULT rowDescription
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(
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[in] long row,
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[out, retval] BSTR *description
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);
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/** @brief Returns the number of rows occupied by the accessible object
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at the specified row and column in the table.
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The result is greater than 1 if the specified cell spans multiple rows.
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@param [in] row
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0 based row index of the accessible for which to return the row extent.
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@param [in] column
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0 based column index of the accessible for which to return the row extent.
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@param [out] nRowsSpanned
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Returns the row extent of the specified cell.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed, [out] value is 0
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*/
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[propget] HRESULT rowExtentAt
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(
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[in] long row,
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[in] long column,
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[out, retval] long *nRowsSpanned
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);
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/** @brief Returns the row headers as an %IAccessibleTable object.
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Content and size of the returned table are implementation dependent.
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@param [out] accessibleTable
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The row header.
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@param [out] startingColumnIndex
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The 0 based column index where the header starts, usually 0.
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@retval S_OK
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@retval S_FALSE if there is no header, [out] values are NULL and 0 respectively
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*/
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[propget] HRESULT rowHeader
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(
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[out] IAccessibleTable **accessibleTable,
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[out, retval] long *startingColumnIndex
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);
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/** @brief Translates the given cell index into a row index.
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@param [in] cellIndex
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0 based index of the cell in the parent or closest ancestor table. Typically this
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is the value returned from IAccessible2::indexInParent, but in the case where the
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table cells are not direct children of the table this is the cell index specified
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by the "table-cell-index" object attribute obtained from parsing the attributes
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string returned by calling IAccessible2::attributes on the cell object.
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@param [out] rowIndex
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0 based row index
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed, [out] value is 0
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*/
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[propget] HRESULT rowIndex
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(
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[in] long cellIndex,
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[out, retval] long *rowIndex
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);
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/** @brief Returns a list of cell indexes currently selected (0 based).
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@param [in] maxChildren
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This parameter is ignored. Refer to @ref _arrayConsideration
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"Special Consideration when using Arrays" for more details.
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@param [out] children
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An array of cell indexes of selected cells (each index is 0 based),
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allocated by the server. Free it with CoTaskMemFree.
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@param [out] nChildren
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The number of cell indexes returned; the size of the returned array.
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@retval S_OK
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@retval S_FALSE if there are none, [out] values are NULL and 0 respectively
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*/
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[propget] HRESULT selectedChildren
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(
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[in] long maxChildren,
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[out, size_is(,maxChildren), length_is(,*nChildren)] long **children,
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[out, retval] long *nChildren
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);
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/** @brief Returns a list of column indexes currently selected (0 based).
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@param [in] maxColumns
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This parameter is ignored. Refer to @ref _arrayConsideration
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"Special Consideration when using Arrays" for more details.
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@param [out] columns
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An array of column indexes of selected columns (each index is 0 based), allocated
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by the server. Free it with CoTaskMemFree.
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@param [out] nColumns
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The number of column indexes returned; the size of the returned array.
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@retval S_OK
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@retval S_FALSE if there are none, [out] values are NULL and 0 respectively
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*/
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[propget] HRESULT selectedColumns
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(
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[in] long maxColumns,
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[out, size_is(,maxColumns), length_is(,*nColumns)] long **columns,
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[out, retval] long *nColumns
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);
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/** @brief Returns a list of row indexes currently selected (0 based).
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@param [in] maxRows
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This parameter is ignored. Refer to @ref _arrayConsideration
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"Special Consideration when using Arrays" for more details.
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@param [out] rows
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An array of row indexes of selected rows (each index is 0 based), allocated
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by the server. Free it with CoTaskMemFree.
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@param [out] nRows
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The number of row indexes returned; the size of the returned array.
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@retval S_OK
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@retval S_FALSE if there are none, [out] values are NULL and 0 respectively
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*/
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[propget] HRESULT selectedRows
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(
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[in] long maxRows,
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[out, size_is(,maxRows), length_is(,*nRows)] long **rows,
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[out, retval] long *nRows
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);
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/** @brief Returns the summary description of the table. The returned object could be
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an IAccessible or an IAccessible2.
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@param [out] accessible
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Returns a reference to an implementation dependent accessible object
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representing the table's summary or a NULL pointer if the table
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does not support a summary.
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@retval S_OK
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@retval S_FALSE if there is nothing to return, [out] value is NULL
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*/
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[propget] HRESULT summary
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(
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[out, retval] IUnknown **accessible
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);
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/** @brief Returns a boolean value indicating whether the specified column is
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completely selected.
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@param [in] column
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0 based index of the column for which to determine whether it is selected.
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@param [out] isSelected
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Returns TRUE if the specified column is selected completely and FALSE otherwise.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed, [out] value is FALSE
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*/
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[propget] HRESULT isColumnSelected
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(
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[in] long column,
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[out, retval] boolean *isSelected
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);
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/** @brief Returns a boolean value indicating whether the specified row is completely
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selected.
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@param [in] row
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0 based index of the row for which to determine whether it is selected.
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@param [out] isSelected
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Returns TRUE if the specified row is selected completely and FALSE otherwise.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed, [out] value is FALSE
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*/
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[propget] HRESULT isRowSelected
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(
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[in] long row,
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[out, retval] boolean *isSelected
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);
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/** @brief Returns a boolean value indicating whether the specified cell is selected.
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@param [in] row
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0 based index of the row for the cell to determine whether it is selected.
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@param [in] column
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0 based index of the column for the cell to determine whether it is selected.
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@param [out] isSelected
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Returns TRUE if the specified cell is selected and FALSE otherwise.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed, [out] value is FALSE
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*/
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[propget] HRESULT isSelected
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(
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[in] long row,
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[in] long column,
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[out, retval] boolean *isSelected
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);
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/** @brief Selects a row and unselects all previously selected rows.
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@param [in] row
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0 based index of the row to be selected.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed
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*/
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HRESULT selectRow
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(
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[in] long row
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);
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/** @brief Selects a column and unselects all previously selected columns.
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@param [in] column
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0 based index of the column to be selected.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed
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*/
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HRESULT selectColumn
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(
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[in] long column
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);
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/** @brief Unselects one row, leaving other selected rows selected (if any).
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@param [in] row
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0 based index of the row to be unselected.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed
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*/
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HRESULT unselectRow
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|
(
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[in] long row
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);
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/** @brief Unselects one column, leaving other selected columns selected (if any).
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@param [in] column
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0 based index of the column to be unselected.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed
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*/
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HRESULT unselectColumn
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|
(
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[in] long column
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);
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/** @brief Given a cell index, gets the row and column indexes and extents of a cell
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and whether or not it is selected.
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This is a convenience function. It is not mandatory to implement it.
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@param [in] index
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0 based index of this cell in the table.
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@param [out] row
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0 based row index.
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@param [out] column
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0 based column index.
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@param [out] rowExtents
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Number of cells spanned by this cell in this row.
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@param [out] columnExtents
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Number of cells spanned by this cell in this column.
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@param [out] isSelected
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Indicates if the specified cell is selected.
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@retval S_OK
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@retval E_INVALIDARG if bad [in] passed, [out] values are 0s and FALSE respectively
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*/
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[propget] HRESULT rowColumnExtentsAtIndex
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|
(
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[in] long index,
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[out] long *row,
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[out] long *column,
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[out] long *rowExtents,
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[out] long *columnExtents,
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[out, retval] boolean *isSelected
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);
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/** @brief Returns the type and extents describing how a table changed.
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|
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Provided for use by the IA2_EVENT_TABLE_MODEL_CHANGED event handler.
|
|
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This data is only guaranteed to be valid while the thread notifying the event
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continues. Once the handler has returned, the validity of the data depends on
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how the server manages the life cycle of its objects. Also, note that the server
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may have different life cycle management strategies for controls depending on
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whether or not a control manages its children. Lists, trees, and tables can have
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a large number of children and thus it's possible that the child objects for those
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controls would only be created as needed. Servers should document their life cycle
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|
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
|
|
);
|
|
|
|
}
|