зеркало из https://github.com/mozilla/pjs.git
936 строки
30 KiB
C++
936 строки
30 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsIDOMDocument.h"
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#include "nsEditor.h"
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#include "nsIDOMText.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMAttr.h"
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#include "nsIDOMNode.h"
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#include "nsIDOMNodeList.h"
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#include "nsIDOMRange.h"
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#include "nsIDOMSelection.h"
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#include "nsLayoutCID.h"
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#include "nsIContent.h"
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#include "nsIContentIterator.h"
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#include "nsIAtom.h"
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#include "nsIDOMHTMLTableElement.h"
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#include "nsIDOMHTMLTableCellElement.h"
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#include "nsITableCellLayout.h" // For efficient access to table cell
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#include "nsITableLayout.h" // data owned by the table and cell frames
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#include "nsHTMLEditor.h"
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#include "nsEditorUtils.h"
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static NS_DEFINE_CID(kCContentIteratorCID, NS_CONTENTITERATOR_CID);
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// Table Editing methods
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NS_IMETHODIMP
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nsHTMLEditor::InsertCell(nsIDOMElement *aCell, PRInt32 aRowSpan, PRInt32 aColSpan, PRBool aAfter)
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{
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if (!aCell) return NS_ERROR_NULL_POINTER;
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// And the parent and offsets needed to do an insert
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nsCOMPtr<nsIDOMNode> cellParent;
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nsresult res = aCell->GetParentNode(getter_AddRefs(cellParent));
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if( NS_SUCCEEDED(res) && cellParent)
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{
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PRInt32 cellOffset;
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res = GetChildOffset(aCell, cellParent, cellOffset);
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if( NS_SUCCEEDED(res))
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{
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nsCOMPtr<nsIDOMElement> newCell;
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res = CreateElementWithDefaults("td", getter_AddRefs(newCell));
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if (NS_SUCCEEDED(res) && newCell)
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{
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if( aRowSpan > 1)
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{
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nsAutoString newRowSpan(aRowSpan);
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//newRowSpan.Append(aRowSpan, 10);
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// Note: Do NOT use editor txt for this
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newCell->SetAttribute("rowspan", newRowSpan);
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}
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if( aColSpan > 1)
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{
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nsAutoString newColSpan(aColSpan);
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// Note: Do NOT use editor txt for this
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newCell->SetAttribute("colspan", newColSpan);
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}
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if(aAfter) cellOffset++;
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res = InsertNode(newCell, cellParent, cellOffset);
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}
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}
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}
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return res;
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}
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NS_IMETHODIMP
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nsHTMLEditor::InsertTableCell(PRInt32 aNumber, PRBool aAfter)
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{
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nsCOMPtr<nsIDOMSelection> selection;
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nsCOMPtr<nsIDOMElement> table;
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nsCOMPtr<nsIDOMElement> cell;
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nsCOMPtr<nsIDOMNode> cellParent;
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PRInt32 cellOffset, startRowIndex, startColIndex;
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nsresult res = GetCellContext(selection, table, cell, cellParent, cellOffset, startRowIndex, startColIndex);
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if (NS_SUCCEEDED(res))
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{
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PRInt32 i;
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for (i = 0; i < aNumber; i++)
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{
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nsCOMPtr<nsIDOMElement> newCell;
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res = CreateElementWithDefaults("td", getter_AddRefs(newCell));
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if (NS_SUCCEEDED(res) && newCell)
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{
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if (aAfter) cellOffset++;
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res = InsertNode(newCell, cellParent, cellOffset);
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if(NS_FAILED(res)) break;
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}
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}
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}
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nsresult rv = SetCaretAfterTableEdit(table, startRowIndex, startColIndex, ePreviousColumn);
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if (NS_FAILED(res)) return res;
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return rv;
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}
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NS_IMETHODIMP
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nsHTMLEditor::InsertTableColumn(PRInt32 aNumber, PRBool aAfter)
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{
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nsCOMPtr<nsIDOMSelection> selection;
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nsCOMPtr<nsIDOMElement> table;
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nsCOMPtr<nsIDOMElement> cell;
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nsCOMPtr<nsIDOMNode> cellParent;
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PRInt32 cellOffset, startRowIndex, startColIndex;
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nsresult res = GetCellContext(selection, table, cell, cellParent, cellOffset, startRowIndex, startColIndex);
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if (NS_FAILED(res)) return res;
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// Get more data for current cell (we need ROWSPAN)
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nsCOMPtr<nsIDOMElement> curCell;
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PRInt32 curStartRowIndex, curStartColIndex, rowSpan, colSpan;
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PRBool isSelected;
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GetCellDataAt(table, startRowIndex, startColIndex, *getter_AddRefs(curCell),
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curStartRowIndex, curStartColIndex, rowSpan, colSpan, isSelected);
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if (!curCell) return NS_ERROR_FAILURE;
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// Use column after current cell if requested
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if (aAfter)
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startColIndex += colSpan;
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PRInt32 rowCount, colCount, row;
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if (NS_FAILED(GetTableSize(table, rowCount, colCount)))
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return NS_ERROR_FAILURE;
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PRInt32 lastColumn = colCount - 1;
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nsAutoEditBatch beginBatching(this);
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for ( row = 0; row < rowCount; row++)
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{
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if (startColIndex < colCount)
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{
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// We are insert before an existing column
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GetCellDataAt(table, row, startColIndex, *getter_AddRefs(curCell),
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curStartRowIndex, curStartColIndex, rowSpan, colSpan, isSelected);
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// Don't fail entire process if we fail to find a cell
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// (may fail just in particular rows with < adequate cells per row)
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if (curCell)
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{
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if (curStartColIndex < startColIndex)
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{
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// We have a cell spanning this location
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// Simply increase its colspan to keep table rectangular
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nsAutoString newColSpan;
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newColSpan.Append(colSpan+aNumber, 10);
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SetAttribute(curCell, "colspan", newColSpan);
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} else {
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// Simply set selection to the current cell
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// so we can let InsertTableCell() do the work
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// Insert a new cell before current one
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selection->Collapse(curCell, 0);
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res = InsertTableCell(aNumber, PR_FALSE);
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}
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}
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} else {
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//TODO: A better strategy is to get the row at index "row"
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// and append a cell to the end of it.
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// Need to write "GetRowAt()" to do this
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// Get last cell in row and insert new cell after it
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GetCellDataAt(table, row, lastColumn, *getter_AddRefs(curCell),
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curStartRowIndex, curStartColIndex, rowSpan, colSpan, isSelected);
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if( curCell)
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{
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selection->Collapse(curCell, 0);
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res = InsertTableCell(aNumber, PR_TRUE);
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}
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}
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}
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nsresult rv = SetCaretAfterTableEdit(table, startRowIndex, startColIndex, ePreviousColumn);
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if (NS_FAILED(res)) return res;
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return rv;
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}
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NS_IMETHODIMP
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nsHTMLEditor::InsertTableRow(PRInt32 aNumber, PRBool aAfter)
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{
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nsCOMPtr<nsIDOMSelection> selection;
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nsCOMPtr<nsIDOMElement> table;
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nsCOMPtr<nsIDOMElement> cell;
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nsCOMPtr<nsIDOMNode> cellParent;
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PRInt32 cellOffset, startRowIndex, startColIndex;
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nsresult res = GetCellContext(selection, table, cell, cellParent, cellOffset, startRowIndex, startColIndex);
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if (NS_FAILED(res)) return res;
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// Get more data for current cell in row we are inserting at (we need COLSPAN)
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nsCOMPtr<nsIDOMElement> curCell;
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PRInt32 curStartRowIndex, curStartColIndex, rowSpan, colSpan;
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PRBool isSelected;
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res = GetCellDataAt(table, startRowIndex, startColIndex, *getter_AddRefs(curCell),
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curStartRowIndex, curStartColIndex, rowSpan, colSpan, isSelected);
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if (NS_FAILED(res)) return res;
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if (!curCell) return NS_ERROR_FAILURE;
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// Use row after current cell if requested
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if (aAfter)
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startRowIndex += rowSpan;
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nsCOMPtr<nsIDOMElement> parentRow;
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GetElementOrParentByTagName("tr", curCell, getter_AddRefs(parentRow));
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if (!parentRow) return NS_ERROR_NULL_POINTER;
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PRInt32 rowCount, colCount;
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if (NS_FAILED(GetTableSize(table, rowCount, colCount)))
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return NS_ERROR_FAILURE;
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// Get the parent and offset where we will insert new row(s)
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nsCOMPtr<nsIDOMNode> parentOfRow;
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PRInt32 newRowOffset;
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parentRow->GetParentNode(getter_AddRefs(parentOfRow));
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if (!parentOfRow) return NS_ERROR_NULL_POINTER;
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res = GetChildOffset(parentRow, parentOfRow, newRowOffset);
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if (NS_FAILED(res)) return res;
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if (!parentOfRow) return NS_ERROR_NULL_POINTER;
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// offset to use for new row insert
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if (aAfter)
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newRowOffset += rowSpan;
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nsAutoEditBatch beginBatching(this);
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PRInt32 cellsInRow = 0;
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if (startRowIndex < rowCount)
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{
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// We are inserting above an existing row
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// Get each cell in the insert row to adjust for COLSPAN effects while we
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// count how many cells are needed
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PRInt32 colIndex = 0;
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// This returns NS_TABLELAYOUT_CELL_NOT_FOUND when we run past end of row,
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// which passes the NS_SUCCEEDED macro
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while ( NS_OK == GetCellDataAt(table, newRowOffset, colIndex, *getter_AddRefs(curCell),
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curStartRowIndex, curStartColIndex, rowSpan, colSpan, isSelected) )
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{
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if (curCell)
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{
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if (curStartRowIndex < startRowIndex)
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{
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// We have a cell spanning this location
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// Simply increase its colspan to keep table rectangular
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nsAutoString newRowSpan;
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newRowSpan.Append(rowSpan+aNumber, 10);
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SetAttribute(curCell, "rowspan", newRowSpan);
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} else {
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// Count the number of cells we need to add to the new row
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cellsInRow += colSpan;
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}
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// Next cell in row
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colIndex += colSpan;
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}
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else
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colIndex++;
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}
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} else {
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// We are adding after existing rows,
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// so use max number of cells in a row
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cellsInRow = colCount;
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}
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if (cellsInRow > 0)
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{
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for (PRInt32 row = 0; row < aNumber; row++)
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{
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// Create a new row
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nsCOMPtr<nsIDOMElement> newRow;
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res = CreateElementWithDefaults("tr", getter_AddRefs(newRow));
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if (NS_SUCCEEDED(res))
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{
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if (!newRow) return NS_ERROR_FAILURE;
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for (PRInt32 i = 0; i < cellsInRow; i++)
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{
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nsCOMPtr<nsIDOMElement> newCell;
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res = CreateElementWithDefaults("td", getter_AddRefs(newCell));
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if (NS_FAILED(res)) return res;
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if (!newCell) return NS_ERROR_FAILURE;
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// Don't use transaction system yet! (not until entire row is inserted)
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nsCOMPtr<nsIDOMNode>resultNode;
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res = newRow->AppendChild(newCell, getter_AddRefs(resultNode));
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if (NS_FAILED(res)) return res;
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}
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// Use transaction system to insert the entire row+cells
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// (Note that rows are inserted at same childoffset each time)
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res = nsEditor::InsertNode(newRow, parentOfRow, newRowOffset);
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if (NS_FAILED(res)) return res;
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}
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}
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}
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nsresult rv = SetCaretAfterTableEdit(table, startRowIndex, startColIndex, ePreviousRow);
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if (NS_FAILED(res)) return res;
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return rv;
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}
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// This is an internal helper (not exposed in IDL)
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NS_IMETHODIMP
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nsHTMLEditor::DeleteTable(nsCOMPtr<nsIDOMElement> &table, nsCOMPtr<nsIDOMSelection> &selection)
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{
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nsCOMPtr<nsIDOMNode> tableParent;
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PRInt32 tableOffset;
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if(NS_FAILED(table->GetParentNode(getter_AddRefs(tableParent))) || !tableParent)
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return NS_ERROR_FAILURE;
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// Save offset we need to restore the selection
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if(NS_FAILED(GetChildOffset(table, tableParent, tableOffset)))
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return NS_ERROR_FAILURE;
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nsresult res = DeleteNode(table);
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// Place selection just before the table
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selection->Collapse(tableParent, tableOffset);
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return res;
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}
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NS_IMETHODIMP
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nsHTMLEditor::DeleteTable()
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{
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nsCOMPtr<nsIDOMSelection> selection;
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nsCOMPtr<nsIDOMElement> table;
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nsCOMPtr<nsIDOMElement> cell;
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nsCOMPtr<nsIDOMNode> cellParent;
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PRInt32 cellOffset, startRowIndex, startColIndex;
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nsresult res = GetCellContext(selection, table, cell, cellParent, cellOffset, startRowIndex, startColIndex);
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if (NS_SUCCEEDED(res))
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{
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nsAutoEditBatch beginBatching(this);
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res = DeleteTable(table, selection);
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}
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return res;
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}
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NS_IMETHODIMP
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nsHTMLEditor::DeleteTableCell(PRInt32 aNumber)
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{
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nsCOMPtr<nsIDOMSelection> selection;
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nsCOMPtr<nsIDOMElement> table;
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nsCOMPtr<nsIDOMElement> cell;
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nsCOMPtr<nsIDOMNode> cellParent;
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PRInt32 cellOffset, startRowIndex, startColIndex;
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nsresult res = NS_OK;
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nsAutoEditBatch beginBatching(this);
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// We clear the selection to avoid problems when nodes in the selection are deleted,
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// Be sure to set it correctly later (in SetCaretAfterTableEdit)!
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selection->ClearSelection();
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for (PRInt32 i = 0; i < aNumber; i++)
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{
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res = GetCellContext(selection, table, cell, cellParent, cellOffset, startRowIndex, startColIndex);
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if (NS_SUCCEEDED(res) && cell)
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{
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if (1 == GetNumberOfCellsInRow(table, startRowIndex))
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{
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nsCOMPtr<nsIDOMElement> parentRow;
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res = GetElementOrParentByTagName("tr", cell, getter_AddRefs(parentRow));
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if (NS_SUCCEEDED(res) && parentRow)
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{
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// We should delete the row instead,
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// but first check if its the only row left
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// so we can delete the entire table
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PRInt32 rowCount, colCount;
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GetTableSize(table, rowCount, colCount);
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if (rowCount == 1)
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return DeleteTable(table, selection);
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// Delete the row by placing caret in cell we were to delete
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// We need to call DeleteTableRow to handle cells with rowspan
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selection->Collapse(cell,0);
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return DeleteTableRow(1);
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}
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} else {
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res = DeleteNode(cell);
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// If we fail, don't try to delete any more cells???
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if (NS_FAILED(res)) break;
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}
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// Set selection (caret) exactly where we were
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// If no more cells in row (we can't set caret there), then we're done
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if NS_FAILED(SetCaretAfterTableEdit(table, startRowIndex, startColIndex, eNoSearch))
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break;
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}
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else break; // Didn't get the cell
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}
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nsresult rv = SetCaretAfterTableEdit(table, startRowIndex, startColIndex, ePreviousColumn);
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if (NS_FAILED(res)) return res;
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return rv;
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}
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NS_IMETHODIMP
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nsHTMLEditor::DeleteTableColumn(PRInt32 aNumber)
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{
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nsCOMPtr<nsIDOMSelection> selection;
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nsCOMPtr<nsIDOMElement> table;
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nsCOMPtr<nsIDOMElement> cell;
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nsCOMPtr<nsIDOMNode> cellParent;
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PRInt32 cellOffset, startRowIndex, startColIndex;
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PRInt32 rowCount, colCount;
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nsresult res = NS_OK;
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res = GetCellContext(selection, table, cell, cellParent, cellOffset, startRowIndex, startColIndex);
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if (NS_FAILED(res)) return res;
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if(!cell) return NS_ERROR_NULL_POINTER;
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GetTableSize(table, rowCount, colCount);
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// Shortcut the case of deleting all columns in table
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if(startColIndex == 0 && aNumber >= colCount)
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return DeleteTable(table, selection);
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nsAutoEditBatch beginBatching(this);
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// Check for counts too high
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aNumber = PR_MIN(aNumber,(colCount-startColIndex));
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// We clear the selection to avoid problems when nodes in the selection are deleted,
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// Be sure to set it correctly later (in SetCaretAfterTableEdit)!
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selection->ClearSelection();
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// Scan through cells in row to do rowspan adjustments
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nsCOMPtr<nsIDOMElement> curCell;
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PRInt32 curStartRowIndex, curStartColIndex, rowSpan, colSpan;
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PRBool isSelected;
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PRInt32 rowIndex = 0;
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for (PRInt32 i = 0; i < aNumber; i++)
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{
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do {
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res = GetCellDataAt(table, rowIndex, startColIndex, *getter_AddRefs(curCell),
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curStartRowIndex, curStartColIndex, rowSpan, colSpan, isSelected);
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if (NS_SUCCEEDED(res) && curCell)
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{
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// Find cells that don't start in column we are deleting
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if (curStartColIndex < startColIndex)
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{
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NS_ASSERTION((colSpan > 1),"Bad COLSPAN in DeleteTableColumn");
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// We have a cell spanning this location
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// Decrease its colspan to keep table rectangular
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nsAutoString newColSpan;
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//This calculates final span for all columns deleted,
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// but we are iterating aNumber times through here so
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// just decrement current value by 1
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//PRInt32 minSpan = startColIndex - curStartColIndex;
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//PRInt32 newSpan = PR_MAX(minSpan, colSpan - aNumber);
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//newColSpan.Append(newSpan, 10);
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newColSpan.Append(colSpan-1, 10);
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SetAttribute(curCell, "colspan", newColSpan);
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} else {
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// Delete the cell
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// First create a cell to fill in spanned regions
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if (colSpan > 1)
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InsertCell(curCell, rowSpan, colSpan-1, PR_TRUE);
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res = DeleteNode(curCell);
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}
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//Skipover any rows spanned by this cell
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rowIndex +=rowSpan;
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} else {
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rowIndex++;
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}
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} while (curCell);
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|
}
|
|
nsresult rv = SetCaretAfterTableEdit(table, startRowIndex, startColIndex, ePreviousColumn);
|
|
if (NS_FAILED(res)) return res;
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::DeleteTableRow(PRInt32 aNumber)
|
|
{
|
|
nsCOMPtr<nsIDOMSelection> selection;
|
|
nsCOMPtr<nsIDOMElement> table;
|
|
nsCOMPtr<nsIDOMElement> cell;
|
|
nsCOMPtr<nsIDOMNode> cellParent;
|
|
PRInt32 cellOffset, startRowIndex, startColIndex;
|
|
PRInt32 rowCount, colCount;
|
|
nsresult res = NS_OK;
|
|
|
|
res = GetCellContext(selection, table, cell, cellParent, cellOffset, startRowIndex, startColIndex);
|
|
if (NS_FAILED(res)) return res;
|
|
if(!cell) return NS_ERROR_NULL_POINTER;
|
|
|
|
GetTableSize(table, rowCount, colCount);
|
|
|
|
// Shortcut the case of deleting all rows in table
|
|
if(startRowIndex == 0 && aNumber >= rowCount)
|
|
return DeleteTable(table, selection);
|
|
|
|
nsAutoEditBatch beginBatching(this);
|
|
|
|
// Check for counts too high
|
|
aNumber = PR_MIN(aNumber,(rowCount-startRowIndex));
|
|
|
|
// We clear the selection to avoid problems when nodes in the selection are deleted,
|
|
// Be sure to set it correctly later (in SetCaretAfterTableEdit)!
|
|
selection->ClearSelection();
|
|
|
|
// Scan through cells in row to do rowspan adjustments
|
|
nsCOMPtr<nsIDOMElement> curCell;
|
|
PRInt32 curStartRowIndex, curStartColIndex, rowSpan, colSpan;
|
|
PRBool isSelected;
|
|
PRInt32 colIndex = 0;
|
|
do {
|
|
res = GetCellDataAt(table, startRowIndex, colIndex, *getter_AddRefs(curCell),
|
|
curStartRowIndex, curStartColIndex, rowSpan, colSpan, isSelected);
|
|
|
|
// Find cells that don't start in row we are deleting
|
|
if (NS_SUCCEEDED(res) && curCell)
|
|
{
|
|
if (curStartRowIndex < startRowIndex)
|
|
{
|
|
// We have a cell spanning this location
|
|
// Decrease its rowspan to keep table rectangular
|
|
nsAutoString newRowSpan;
|
|
PRInt32 minSpan = startRowIndex - curStartRowIndex;
|
|
PRInt32 newSpan = PR_MAX(minSpan, rowSpan - aNumber);
|
|
newRowSpan.Append(newSpan, 10);
|
|
SetAttribute(curCell, "rowspan", newRowSpan);
|
|
}
|
|
// Skip over locations spanned by this cell
|
|
colIndex += colSpan;
|
|
}
|
|
else
|
|
colIndex++;
|
|
|
|
} while (curCell);
|
|
|
|
for (PRInt32 i = 0; i < aNumber; i++)
|
|
{
|
|
//TODO: To minimize effect of deleting cells that have rowspan > 1:
|
|
// Scan for rowspan > 1 and insert extra emtpy cells in
|
|
// appropriate rows to take place of spanned regions.
|
|
// (Hard part is finding appropriate neighbor cell before/after in correct row)
|
|
|
|
// Delete the row
|
|
nsCOMPtr<nsIDOMElement> parentRow;
|
|
res = GetElementOrParentByTagName("tr", cell, getter_AddRefs(parentRow));
|
|
if (NS_SUCCEEDED(res) && parentRow)
|
|
res = DeleteNode(parentRow);
|
|
if (NS_FAILED(res))
|
|
startRowIndex++;
|
|
|
|
res = GetCellAt(table, startRowIndex, startColIndex, *getter_AddRefs(cell));
|
|
if(!cell)
|
|
break;
|
|
}
|
|
nsresult rv = SetCaretAfterTableEdit(table, startRowIndex, startColIndex, ePreviousRow);
|
|
if (NS_FAILED(res)) return res;
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::JoinTableCells()
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::NormalizeTable(nsIDOMElement *aTable)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::GetCellIndexes(nsIDOMElement *aCell, PRInt32 &aRowIndex, PRInt32 &aColIndex)
|
|
{
|
|
nsresult res=NS_ERROR_NOT_INITIALIZED;
|
|
aColIndex=0; // initialize out params
|
|
aRowIndex=0;
|
|
if (!aCell)
|
|
{
|
|
// Get the selected cell or the cell enclosing the selection anchor
|
|
nsCOMPtr<nsIDOMElement> cell;
|
|
res = GetElementOrParentByTagName("td", nsnull, getter_AddRefs(cell));
|
|
if (NS_SUCCEEDED(res) && cell)
|
|
aCell = cell;
|
|
else
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
res = NS_ERROR_FAILURE; // we return an error unless we get the index
|
|
nsISupports *layoutObject=nsnull; // frames are not ref counted, so don't use an nsCOMPtr
|
|
|
|
res = nsHTMLEditor::GetLayoutObject(aCell, &layoutObject);
|
|
|
|
if ((NS_SUCCEEDED(res)) && (nsnull!=layoutObject))
|
|
{ // get the table cell interface from the frame
|
|
nsITableCellLayout *cellLayoutObject=nsnull; // again, frames are not ref-counted
|
|
|
|
res = layoutObject->QueryInterface(nsITableCellLayout::GetIID(), (void**)(&cellLayoutObject));
|
|
if ((NS_SUCCEEDED(res)) && (nsnull!=cellLayoutObject))
|
|
{
|
|
res = cellLayoutObject->GetCellIndexes(aRowIndex, aColIndex);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::GetTableLayoutObject(nsIDOMElement* aTable, nsITableLayout **tableLayoutObject)
|
|
{
|
|
*tableLayoutObject=nsnull;
|
|
if (!aTable)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
// frames are not ref counted, so don't use an nsCOMPtr
|
|
nsISupports *layoutObject=nsnull;
|
|
nsresult res = nsHTMLEditor::GetLayoutObject(aTable, &layoutObject);
|
|
if ((NS_SUCCEEDED(res)) && (nsnull!=layoutObject))
|
|
{ // get the table interface from the frame
|
|
|
|
res = layoutObject->QueryInterface(nsITableLayout::GetIID(),
|
|
(void**)(tableLayoutObject));
|
|
}
|
|
return res;
|
|
}
|
|
|
|
//Return actual number of cells (a cell with colspan > 1 counts as just 1)
|
|
PRBool nsHTMLEditor::GetNumberOfCellsInRow(nsIDOMElement* aTable, PRInt32 rowIndex)
|
|
{
|
|
PRInt32 cellCount = 0;
|
|
nsCOMPtr<nsIDOMElement> cell;
|
|
PRInt32 colIndex = 0;
|
|
nsresult res;
|
|
do {
|
|
PRInt32 startRowIndex, startColIndex, rowSpan, colSpan;
|
|
PRBool isSelected;
|
|
res = GetCellDataAt(aTable, rowIndex, colIndex, *getter_AddRefs(cell),
|
|
startRowIndex, startColIndex, rowSpan, colSpan, isSelected);
|
|
|
|
if (NS_SUCCEEDED(res) && cell )
|
|
{
|
|
// Only count cells that start in row we are working with
|
|
if (startRowIndex == rowIndex)
|
|
cellCount++;
|
|
|
|
//Next possible location for a cell
|
|
colIndex += colSpan;
|
|
}
|
|
else
|
|
colIndex++;
|
|
|
|
} while (cell);
|
|
|
|
return cellCount;
|
|
}
|
|
|
|
/* Not scriptable: For convenience in C++ */
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::GetTableSize(nsIDOMElement *aTable, PRInt32& aRowCount, PRInt32& aColCount)
|
|
{
|
|
nsresult res=NS_ERROR_FAILURE;
|
|
aRowCount = 0;
|
|
aColCount = 0;
|
|
if (!aTable)
|
|
{
|
|
// Get the selected talbe or the table enclosing the selection anchor
|
|
nsCOMPtr<nsIDOMElement> table;
|
|
res = GetElementOrParentByTagName("table", nsnull, getter_AddRefs(table));
|
|
if (NS_SUCCEEDED(res) && table)
|
|
aTable = table;
|
|
else
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// frames are not ref counted, so don't use an nsCOMPtr
|
|
nsITableLayout *tableLayoutObject;
|
|
res = GetTableLayoutObject(aTable, &tableLayoutObject);
|
|
if ((NS_SUCCEEDED(res)) && (nsnull!=tableLayoutObject))
|
|
{
|
|
res = tableLayoutObject->GetTableSize(aRowCount, aColCount);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::GetCellDataAt(nsIDOMElement* aTable, PRInt32 aRowIndex, PRInt32 aColIndex, nsIDOMElement* &aCell,
|
|
PRInt32& aStartRowIndex, PRInt32& aStartColIndex,
|
|
PRInt32& aRowSpan, PRInt32& aColSpan, PRBool& aIsSelected)
|
|
{
|
|
nsresult res=NS_ERROR_FAILURE;
|
|
aCell = nsnull;
|
|
aStartRowIndex = 0;
|
|
aStartColIndex = 0;
|
|
aRowSpan = 0;
|
|
aColSpan = 0;
|
|
aIsSelected = PR_FALSE;
|
|
|
|
if (!aTable)
|
|
{
|
|
// Get the selected talbe or the table enclosing the selection anchor
|
|
nsCOMPtr<nsIDOMElement> table;
|
|
res = GetElementOrParentByTagName("table", nsnull, getter_AddRefs(table));
|
|
if (NS_SUCCEEDED(res) && table)
|
|
aTable = table;
|
|
else
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// frames are not ref counted, so don't use an nsCOMPtr
|
|
nsITableLayout *tableLayoutObject;
|
|
res = GetTableLayoutObject(aTable, &tableLayoutObject);
|
|
if ((NS_SUCCEEDED(res)) && (nsnull!=tableLayoutObject))
|
|
{
|
|
// Note that this returns NS_TABLELAYOUT_CELL_NOT_FOUND when
|
|
// the index(es) are out of bounds
|
|
res = tableLayoutObject->GetCellDataAt(aRowIndex, aColIndex, aCell,
|
|
aStartRowIndex, aStartColIndex,
|
|
aRowSpan, aColSpan, aIsSelected);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
// When all you want is the cell
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::GetCellAt(nsIDOMElement* aTable, PRInt32 aRowIndex, PRInt32 aColIndex, nsIDOMElement* &aCell)
|
|
{
|
|
PRInt32 startRowIndex, startColIndex, rowSpan, colSpan;
|
|
PRBool isSelected;
|
|
return GetCellDataAt(aTable, aRowIndex, aColIndex, aCell,
|
|
startRowIndex, startColIndex, rowSpan, colSpan, isSelected);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::GetCellContext(nsCOMPtr<nsIDOMSelection> &aSelection,
|
|
nsCOMPtr<nsIDOMElement> &aTable, nsCOMPtr<nsIDOMElement> &aCell,
|
|
nsCOMPtr<nsIDOMNode> &aCellParent, PRInt32& aCellOffset,
|
|
PRInt32& aRow, PRInt32& aCol)
|
|
{
|
|
nsresult res = nsEditor::GetSelection(getter_AddRefs(aSelection));
|
|
if (NS_FAILED(res) || !aSelection)
|
|
return res;
|
|
|
|
// Find the first selected cell
|
|
res = GetFirstSelectedCell(aCell);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
|
|
if (!aCell)
|
|
{
|
|
//If a cell wasn't selected, then assume the selection is INSIDE
|
|
// and use anchor node to search up to the containing cell
|
|
nsCOMPtr<nsIDOMNode> anchorNode;
|
|
if(NS_FAILED(aSelection->GetAnchorNode(getter_AddRefs(anchorNode))) || !anchorNode)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// Get the cell enclosing the selection anchor
|
|
if(NS_FAILED(GetElementOrParentByTagName("td", anchorNode, getter_AddRefs(aCell))) || !aCell)
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Get containing table and the immediate parent of the cell
|
|
if(NS_FAILED(GetElementOrParentByTagName("table", aCell, getter_AddRefs(aTable))) || !aTable)
|
|
return NS_ERROR_FAILURE;
|
|
if(NS_FAILED(aCell->GetParentNode(getter_AddRefs(aCellParent))) || !aCellParent)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// Get current cell location so we can put caret back there when done
|
|
res = GetCellIndexes(aCell, aRow, aCol);
|
|
if(NS_FAILED(res))
|
|
return res;
|
|
|
|
// And the parent and offsets needed to do an insert
|
|
return GetChildOffset(aCell, aCellParent, aCellOffset);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::GetFirstSelectedCell(nsCOMPtr<nsIDOMElement> &aCell)
|
|
{
|
|
nsCOMPtr<nsIDOMSelection> selection;
|
|
nsresult res = nsEditor::GetSelection(getter_AddRefs(selection));
|
|
if (NS_FAILED(res) || !selection)
|
|
return res;
|
|
|
|
// The most straight forward way of finding a selected cell
|
|
// is to use the selection iterator
|
|
nsCOMPtr<nsIEnumerator> enumerator;
|
|
res = selection->GetEnumerator(getter_AddRefs(enumerator));
|
|
if (NS_SUCCEEDED(res) && enumerator)
|
|
{
|
|
enumerator->First();
|
|
nsCOMPtr<nsISupports> currentItem;
|
|
res = enumerator->CurrentItem(getter_AddRefs(currentItem));
|
|
if ((NS_SUCCEEDED(res)) && currentItem)
|
|
{
|
|
nsCOMPtr<nsIDOMRange> range( do_QueryInterface(currentItem) );
|
|
nsCOMPtr<nsIContentIterator> iter;
|
|
res = nsComponentManager::CreateInstance(kCContentIteratorCID, nsnull,
|
|
nsIContentIterator::GetIID(),
|
|
getter_AddRefs(iter));
|
|
if ((NS_SUCCEEDED(res)) && iter)
|
|
{
|
|
iter->Init(range);
|
|
// loop through the content iterator for each content node
|
|
nsCOMPtr<nsIContent> content;
|
|
|
|
while (NS_ENUMERATOR_FALSE == iter->IsDone())
|
|
{
|
|
res = iter->CurrentNode(getter_AddRefs(content));
|
|
// Not likely!
|
|
if (NS_FAILED(res))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIAtom> atom;
|
|
content->GetTag(*getter_AddRefs(atom));
|
|
if (atom.get() == nsIEditProperty::td ||
|
|
atom.get() == nsIEditProperty::th )
|
|
{
|
|
// We found a cell
|
|
aCell = do_QueryInterface(content);
|
|
break;
|
|
}
|
|
iter->Next();
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
printf("Could not create enumerator for GetCellContext\n");
|
|
}
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::SetCaretAfterTableEdit(nsIDOMElement* aTable, PRInt32 aCol, PRInt32 aRow, SetCaretSearchDirection aDirection)
|
|
{
|
|
nsresult res = NS_ERROR_NOT_INITIALIZED;
|
|
if (!aTable)
|
|
return res;
|
|
|
|
nsCOMPtr<nsIDOMSelection>selection;
|
|
res = nsEditor::GetSelection(getter_AddRefs(selection));
|
|
if (!NS_SUCCEEDED(res) || !selection)
|
|
{
|
|
#ifdef DEBUG_cmanske
|
|
printf("Selection not found after table manipulation!\n");
|
|
#endif
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsCOMPtr<nsIDOMElement> cell;
|
|
PRBool done = PR_FALSE;
|
|
do {
|
|
res = GetCellAt(aTable, aCol, aRow, *getter_AddRefs(cell));
|
|
nsCOMPtr<nsIDOMNode> cellNode = do_QueryInterface(cell);
|
|
if (NS_SUCCEEDED(res))
|
|
{
|
|
if (cell)
|
|
{
|
|
// Set the caret to just before the first child of the cell?
|
|
// TODO: Should we really be placing the caret at the END
|
|
// of the cell content?
|
|
selection->Collapse(cell, 0);
|
|
return NS_OK;
|
|
} else {
|
|
// Setup index to find another cell in the
|
|
// direction requested, but move in
|
|
// other direction if at beginning
|
|
switch (aDirection)
|
|
{
|
|
case ePreviousColumn:
|
|
if (aCol == 0)
|
|
{
|
|
if (aRow > 0)
|
|
aRow--;
|
|
else
|
|
done = PR_TRUE;
|
|
}
|
|
else
|
|
aCol--;
|
|
break;
|
|
case ePreviousRow:
|
|
if (aRow == 0)
|
|
{
|
|
if (aCol > 0)
|
|
aCol--;
|
|
else
|
|
done = PR_TRUE;
|
|
}
|
|
else
|
|
aRow--;
|
|
break;
|
|
default:
|
|
done = PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
break;
|
|
} while (!done);
|
|
|
|
// We didn't find a cell
|
|
// Set selection to just before the table
|
|
nsCOMPtr<nsIDOMNode> tableParent;
|
|
PRInt32 tableOffset;
|
|
res = aTable->GetParentNode(getter_AddRefs(tableParent));
|
|
if(NS_SUCCEEDED(res) && tableParent)
|
|
{
|
|
if(NS_SUCCEEDED(GetChildOffset(aTable, tableParent, tableOffset)))
|
|
return selection->Collapse(tableParent, tableOffset);
|
|
|
|
// Still failing! Set selection to start of doc
|
|
nsCOMPtr<nsIDOMElement> bodyElement;
|
|
res = GetBodyElement(getter_AddRefs(bodyElement));
|
|
if (NS_SUCCEEDED(res))
|
|
{
|
|
if (!bodyElement) return NS_ERROR_NULL_POINTER;
|
|
res = selection->Collapse(bodyElement,0);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|