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338 lines
15 KiB
Plaintext
338 lines
15 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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interface nsIDOMNode;
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interface nsIDOMElement;
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interface nsIDOMRange;
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[scriptable, uuid(4805e684-49b9-11d3-9ce4-ed60bd6cb5bc)]
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interface nsITableEditor : nsISupports
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{
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const short eNoSearch = 0;
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const short ePreviousColumn = 1;
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const short ePreviousRow = 2;
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/* ------------ Table editing Methods -------------- */
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/** Insert table methods
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* Insert relative to the selected cell or the
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* cell enclosing the selection anchor
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* The selection is collapsed and is left in the new cell
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* at the same row,col location as the original anchor cell
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*
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* @param aNumber Number of items to insert
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* @param aAfter If TRUE, insert after the current cell,
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* else insert before current cell
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*/
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void insertTableCell(in long aNumber, in boolean aAfter);
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void insertTableColumn(in long aNumber, in boolean aAfter);
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void insertTableRow(in long aNumber, in boolean aAfter);
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/** Delete table methods
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* Delete starting at the selected cell or the
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* cell (or table) enclosing the selection anchor
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* The selection is collapsed and is left in the
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* cell at the same row,col location as
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* the previous selection anchor, if possible,
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* else in the closest neigboring cell
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*
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* @param aNumber Number of items to insert/delete
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*/
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void deleteTable();
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/** Delete just the cell contents
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* This is what should happen when Delete key is used
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* for selected cells, to minimize upsetting the table layout
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*/
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void deleteTableCellContents();
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/** Delete cell elements as well as contents
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* @param aNumber Number of contiguous cells, rows, or columns
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*
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* When there are more than 1 selected cells, aNumber is ignored.
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* For Delete Rows or Columns, the complete columns or rows are
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* determined by the selected cells. E.g., to delete 2 complete rows,
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* user simply selects a cell in each, and they don't
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* have to be contiguous.
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*/
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void deleteTableCell(in long aNumber);
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void deleteTableColumn(in long aNumber);
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void deleteTableRow(in long aNumber);
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/** Table Selection methods
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* Selecting a row or column actually
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* selects all cells (not TR in the case of rows)
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*/
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void selectTableCell();
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/** Select a rectangular block of cells:
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* all cells falling within the row/column index of aStartCell
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* to through the row/column index of the aEndCell
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* aStartCell can be any location relative to aEndCell,
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* as long as they are in the same table
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* @param aStartCell starting cell in block
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* @param aEndCell ending cell in block
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*/
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void selectBlockOfCells(in nsIDOMElement aStartCell,
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in nsIDOMElement aEndCell);
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void selectTableRow();
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void selectTableColumn();
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void selectTable();
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void selectAllTableCells();
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/** Create a new TD or TH element, the opposite type of the supplied aSourceCell
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* 1. Copy all attributes from aSourceCell to the new cell
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* 2. Move all contents of aSourceCell to the new cell
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* 3. Replace aSourceCell in the table with the new cell
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*
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* @param aSourceCell The cell to be replaced
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* @return The new cell that replaces aSourceCell
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*/
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nsIDOMElement switchTableCellHeaderType(in nsIDOMElement aSourceCell);
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/** Merges contents of all selected cells
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* for selected cells that are adjacent,
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* this will result in a larger cell with appropriate
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* rowspan and colspan, and original cells are deleted
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* The resulting cell is in the location of the
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* cell at the upper-left corner of the adjacent
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* block of selected cells
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*
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* @param aMergeNonContiguousContents:
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* If true:
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* Non-contiguous cells are not deleted,
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* but their contents are still moved
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* to the upper-left cell
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* If false: contiguous cells are ignored
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*
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* If there are no selected cells,
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* and selection or caret is in a cell,
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* that cell and the one to the right
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* are merged
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*/
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void joinTableCells(in boolean aMergeNonContiguousContents);
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/** Split a cell that has rowspan and/or colspan > 0
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* into cells such that all new cells have
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* rowspan = 1 and colspan = 1
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* All of the contents are not touched --
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* they will appear to be in the upper-left cell
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*/
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void splitTableCell();
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/** Scan through all rows and add cells as needed so
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* all locations in the cellmap are occupied.
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* Used after inserting single cells or pasting
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* a collection of cells that extend past the
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* previous size of the table
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* If aTable is null, it uses table enclosing the selection anchor
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* This doesn't doesn't change the selection,
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* thus it can be used to fixup all tables
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* in a page independent of the selection
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*/
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void normalizeTable(in nsIDOMElement aTable);
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/** Get the row an column index from the layout's cellmap
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* If aCell is null, it will try to find enclosing table of selection anchor
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*
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*/
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void getCellIndexes(in nsIDOMElement aCell,
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out long aRowIndex, out long aColIndex);
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/** Get the number of rows and columns in a table from the layout's cellmap
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* If aTable is null, it will try to find enclosing table of selection ancho
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* Note that all rows in table will not have this many because of
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* ROWSPAN effects or if table is not "rectangular" (has short rows)
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*/
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void getTableSize(in nsIDOMElement aTable,
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out long aRowCount, out long aColCount);
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/** Get a cell element at cellmap grid coordinates
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* A cell that spans across multiple cellmap locations will
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* be returned multiple times, once for each location it occupies
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*
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* @param aTable A table in the document
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* @param aRowIndex, aColIndex The 0-based cellmap indexes
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*
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* (in C++ returns: NS_EDITOR_ELEMENT_NOT_FOUND if an element is not found
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* passes NS_SUCCEEDED macro)
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*
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* You can scan for all cells in a row or column
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* by iterating through the appropriate indexes
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* until the returned aCell is null
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*/
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nsIDOMElement getCellAt(in nsIDOMElement aTable,
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in long aRowIndex, in long aColIndex);
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/** Get a cell at cellmap grid coordinates and associated data
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* A cell that spans across multiple cellmap locations will
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* be returned multiple times, once for each location it occupies
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* Examine the returned aStartRowIndex and aStartColIndex to see
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* if it is in the same layout column or layout row:
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* A "layout row" is all cells sharing the same top edge
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* A "layout column" is all cells sharing the same left edge
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* This is important to determine what to do when inserting or deleting a column or row
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*
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* @param aTable A table in the document
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* @param aRowIndex, aColIndex The 0-based cellmap indexes
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* returns values:
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* @param aCell The cell at this cellmap location
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* @param aStartRowIndex The row index where cell starts
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* @param aStartColIndex The col index where cell starts
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* @param aRowSpan May be 0 (to span down entire table) or number of cells spanned
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* @param aColSpan May be 0 (to span across entire table) or number of cells spanned
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* @param aActualRowSpan The actual number of cellmap locations (rows) spanned by the cell
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* @param aActualColSpan The actual number of cellmap locations (columns) spanned by the cell
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* @param aIsSelected
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* @param
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*
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* (in C++ returns: NS_EDITOR_ELEMENT_NOT_FOUND if an element is not found
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* passes NS_SUCCEEDED macro)
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*/
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void getCellDataAt(in nsIDOMElement aTable,
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in long aRowIndex, in long aColIndex,
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out nsIDOMElement aCell,
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out long aStartRowIndex, out long aStartColIndex,
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out long aRowSpan, out long aColSpan,
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out long aActualRowSpan, out long aActualColSpan,
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out boolean aIsSelected);
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/** Get the first row element in a table
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*
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* @return The row at the requested index
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* Returns null if there are no rows in table
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* (in C++ returns: NS_EDITOR_ELEMENT_NOT_FOUND if an element is not found
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* passes NS_SUCCEEDED macro)
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*/
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nsIDOMNode getFirstRow(in nsIDOMElement aTableElement);
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/** Get the next row element starting the search from aTableElement
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*
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* @param aTableElement Any TR or child-of-TR element in the document
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*
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* @return The row to start search from
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* and the row returned from the search
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* Returns null if there isn't another row
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* (in C++ returns: NS_EDITOR_ELEMENT_NOT_FOUND if an element is not found
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* passes NS_SUCCEEDED macro)
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*/
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nsIDOMNode getNextRow(in nsIDOMNode aTableElement);
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/** Preferred direction to search for neighboring cell
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* when trying to locate a cell to place caret in after
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* a table editing action.
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* Used for aDirection param in SetSelectionAfterTableEdit
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*/
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/** Reset a selected cell or collapsed selection (the caret) after table editing
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*
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* @param aTable A table in the document
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* @param aRow The row ...
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* @param aCol ... and column defining the cell
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* where we will try to place the caret
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* @param aSelected If true, we select the whole cell instead of setting caret
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* @param aDirection If cell at (aCol, aRow) is not found,
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* search for previous cell in the same
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* column (aPreviousColumn) or row (ePreviousRow)
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* or don't search for another cell (aNoSearch)
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* If no cell is found, caret is place just before table;
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* and if that fails, at beginning of document.
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* Thus we generally don't worry about the return value
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* and can use the nsSetSelectionAfterTableEdit stack-based
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* object to insure we reset the caret in a table-editing method.
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*/
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void setSelectionAfterTableEdit(in nsIDOMElement aTable,
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in long aRow, in long aCol,
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in long aDirection, in boolean aSelected);
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/** Examine the current selection and find
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* a selected TABLE, TD or TH, or TR element.
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* or return the parent TD or TH if selection is inside a table cell
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* Returns null if no table element is found.
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*
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* @param aTagName The tagname of returned element
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* Note that "td" will be returned if name
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* is actually "th"
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* @param aCount How many table elements were selected
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* This tells us if we have multiple cells selected
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* (0 if element is a parent cell of selection)
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* @return The table element (table, row, or first selected cell)
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*
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*/
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nsIDOMElement getSelectedOrParentTableElement(out AString aTagName, out long aCount);
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/** Generally used after GetSelectedOrParentTableElement
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* to test if selected cells are complete rows or columns
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*
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* @param aElement Any table or cell element or any element
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* inside a table
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* Used to get enclosing table.
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* If null, selection's anchorNode is used
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*
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* @return
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* 0 aCellElement was not a cell
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* (returned result = NS_ERROR_FAILURE)
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* TABLESELECTION_CELL There are 1 or more cells selected but
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* complete rows or columns are not selected
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* TABLESELECTION_ROW All cells are in 1 or more rows
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* and in each row, all cells selected
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* Note: This is the value if all rows
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* (thus all cells) are selected
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* TABLESELECTION_COLUMN All cells are in 1 or more columns
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* and in each column, all cells are selected
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*/
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uint32_t getSelectedCellsType(in nsIDOMElement aElement);
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/** Get first selected element from first selection range.
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* (If multiple cells were selected this is the first in the order they were selected)
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* Assumes cell-selection model where each cell
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* is in a separate range (selection parent node is table row)
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* @param aCell [OUT] Selected cell or null if ranges don't contain
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* cell selections
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* @param aRange [OUT] Optional: if not null, return the selection range
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* associated with the cell
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* Returns the DOM cell element
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* (in C++: returns NS_EDITOR_ELEMENT_NOT_FOUND if an element is not found
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* passes NS_SUCCEEDED macro)
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*/
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nsIDOMElement getFirstSelectedCell(out nsIDOMRange aRange);
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/** Get first selected element in the table
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* This is the upper-left-most selected cell in table,
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* ignoring the order that the user selected them (order in the selection ranges)
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* Assumes cell-selection model where each cell
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* is in a separate range (selection parent node is table row)
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* @param aCell Selected cell or null if ranges don't contain
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* cell selections
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* @param aRowIndex Optional: if not null, return row index of 1st cell
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* @param aColIndex Optional: if not null, return column index of 1st cell
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*
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* Returns the DOM cell element
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* (in C++: returns NS_EDITOR_ELEMENT_NOT_FOUND if an element is not found
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* passes NS_SUCCEEDED macro)
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*/
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nsIDOMElement getFirstSelectedCellInTable(out long aRowIndex, out long aColIndex);
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/** Get next selected cell element from first selection range.
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* Assumes cell-selection model where each cell
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* is in a separate range (selection parent node is table row)
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* Always call GetFirstSelectedCell() to initialize stored index of "next" cell
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* @param aCell Selected cell or null if no more selected cells
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* or ranges don't contain cell selections
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* @param aRange Optional: if not null, return the selection range
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* associated with the cell
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*
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* Returns the DOM cell element
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* (in C++: returns NS_EDITOR_ELEMENT_NOT_FOUND if an element is not found
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* passes NS_SUCCEEDED macro)
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*/
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nsIDOMElement getNextSelectedCell(out nsIDOMRange aRange);
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};
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