mirror of
https://github.com/mozilla/gecko-dev.git
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1550 lines
51 KiB
C++
1550 lines
51 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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* Pierre Phaneuf <pp@ludusdesign.com>
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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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/***************************************************************************
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* stack based helper class for restoring selection after table edit
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*/
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class nsSetCaretAfterTableEdit
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{
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private:
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nsCOMPtr<nsITableEditor> mEd;
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nsCOMPtr<nsIDOMElement> mTable;
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PRInt32 mCol, mRow, mDirection;
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public:
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nsSetCaretAfterTableEdit(nsITableEditor *aEd, nsIDOMElement* aTable,
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PRInt32 aRow, PRInt32 aCol, PRInt32 aDirection) :
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mEd(do_QueryInterface(aEd))
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{
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mTable = aTable;
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mRow = aRow;
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mCol = aCol;
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mDirection = aDirection;
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}
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~nsSetCaretAfterTableEdit()
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{
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if (mEd)
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mEd->SetCaretAfterTableEdit(mTable, mRow, mCol, mDirection);
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}
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// This is needed to abort the caret reset in the destructor
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// when one method yields control to another
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void CancelSetCaret() {mEd = nsnull; mTable = nsnull;}
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};
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// Table Editing helper utilities (not exposed in IDL)
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NS_IMETHODIMP
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nsHTMLEditor::InsertCell(nsIDOMElement *aCell, PRInt32 aRowSpan, PRInt32 aColSpan,
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PRBool aAfter, nsIDOMElement **aNewCell)
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{
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if (!aCell) return NS_ERROR_NULL_POINTER;
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if (aNewCell) *aNewCell = nsnull;
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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_FAILED(res)) return res;
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if(!newCell) return NS_ERROR_FAILURE;
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//Optional: return new cell created
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if (aNewCell)
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{
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*aNewCell = newCell.get();
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NS_ADDREF(*aNewCell);
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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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// 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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//Don't let Rules System change the selection
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nsAutoTxnsConserveSelection dontChangeSelection(this);
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res = nsEditor::InsertNode(newCell, cellParent, cellOffset);
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}
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}
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return res;
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}
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PRBool IsRowNode(nsCOMPtr<nsIDOMNode> &aNode)
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{
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nsCOMPtr<nsIAtom> atom;
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nsCOMPtr<nsIContent> content = do_QueryInterface(aNode);
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if (content)
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{
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content->GetTag(*getter_AddRefs(atom));
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if (atom && atom.get() == nsIEditProperty::tr)
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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NS_IMETHODIMP nsHTMLEditor::SetColSpan(nsIDOMElement *aCell, PRInt32 aColSpan)
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{
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if (!aCell) return NS_ERROR_NULL_POINTER;
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nsAutoString newSpan;
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newSpan.Append(aColSpan, 10);
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nsAutoString colSpan("colspan");
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return SetAttribute(aCell, colSpan, newSpan);
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}
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NS_IMETHODIMP nsHTMLEditor::SetRowSpan(nsIDOMElement *aCell, PRInt32 aRowSpan)
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{
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if (!aCell) return NS_ERROR_NULL_POINTER;
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nsAutoString newSpan;
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newSpan.Append(aRowSpan, 10);
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nsAutoString rowSpan("rowspan");
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return SetAttribute(aCell, rowSpan, newSpan);
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}
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/****************************************************************/
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// Table Editing interface methods
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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> curCell;
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nsCOMPtr<nsIDOMNode> cellParent;
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PRInt32 cellOffset, startRowIndex, startColIndex;
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nsresult res = GetCellContext(selection, table, curCell, 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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PRInt32 curStartRowIndex, curStartColIndex, rowSpan, colSpan, actualRowSpan, actualColSpan;
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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,
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actualRowSpan, actualColSpan, 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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PRInt32 newCellIndex = aAfter ? (startColIndex+colSpan) : startColIndex;
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//We control selection resetting after the insert...
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nsSetCaretAfterTableEdit setCaret(this, table, startRowIndex, newCellIndex, ePreviousColumn);
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//...so suppress Rules System selection munging
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nsAutoTxnsConserveSelection dontChangeSelection(this);
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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 = nsEditor::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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return res;
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}
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NS_IMETHODIMP
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nsHTMLEditor::GetFirstRow(nsIDOMElement* aTableElement, nsIDOMElement* &aRow)
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{
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aRow = nsnull;
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nsCOMPtr<nsIDOMElement> tableElement;
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nsresult res = GetElementOrParentByTagName("table", aTableElement, getter_AddRefs(tableElement));
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if (NS_FAILED(res)) return res;
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if (!tableElement) return NS_ERROR_NULL_POINTER;
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nsCOMPtr<nsIDOMNode>tableNode = do_QueryInterface(tableElement);
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if (!tableNode) return NS_ERROR_NULL_POINTER;
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nsCOMPtr<nsIDOMNode> tableChild;
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res = tableNode->GetFirstChild(getter_AddRefs(tableChild));
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if (NS_FAILED(res)) return res;
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while (tableChild)
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{
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nsCOMPtr<nsIContent> content = do_QueryInterface(tableChild);
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if (content)
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{
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nsCOMPtr<nsIDOMElement> element;
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nsCOMPtr<nsIAtom> atom;
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content->GetTag(*getter_AddRefs(atom));
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if (atom.get() == nsIEditProperty::tr)
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{
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// Found a row directly under <table>
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element = do_QueryInterface(tableChild);
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if(element)
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{
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aRow = element.get();
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NS_ADDREF(aRow);
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}
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return NS_OK;
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}
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// Look for row in one of the row container elements
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if (atom.get() == nsIEditProperty::tbody ||
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atom.get() == nsIEditProperty::thead ||
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atom.get() == nsIEditProperty::tfoot )
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{
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nsCOMPtr<nsIDOMNode> rowNode;
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// All children should be rows
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res = tableChild->GetFirstChild(getter_AddRefs(rowNode));
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if (NS_FAILED(res)) return res;
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if (rowNode && IsRowNode(rowNode))
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{
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element = do_QueryInterface(rowNode);
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if(element)
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{
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aRow = element.get();
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NS_ADDREF(aRow);
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}
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return NS_OK;
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}
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}
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}
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// Here if table child was a CAPTION or COLGROUP
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// or child of a row-conainer wasn't a row (bad HTML)
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// Look in next table child
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res = tableChild->GetNextSibling(getter_AddRefs(tableChild));
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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::GetNextRow(nsIDOMElement* aTableElement, nsIDOMElement* &aRow)
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{
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aRow = nsnull;
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nsCOMPtr<nsIDOMElement> rowElement;
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nsresult res = GetElementOrParentByTagName("tr", aTableElement, getter_AddRefs(rowElement));
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if (NS_FAILED(res)) return res;
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if (!rowElement) return NS_ERROR_NULL_POINTER;
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nsCOMPtr<nsIDOMNode> rowNode = do_QueryInterface(rowElement);
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if (!rowNode) return NS_ERROR_NULL_POINTER;
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nsCOMPtr<nsIDOMNode> nextRow;
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nsCOMPtr<nsIDOMNode> rowParent;
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nsCOMPtr<nsIDOMNode> parentSibling;
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nsCOMPtr<nsIDOMElement> element;
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rowNode->GetNextSibling(getter_AddRefs(nextRow));
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if(nextRow)
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{
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element = do_QueryInterface(nextRow);
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if(element)
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{
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aRow = element.get();
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NS_ADDREF(aRow);
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}
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return NS_OK;
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}
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// No row found, search for rows in other table sections
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res = rowNode->GetParentNode(getter_AddRefs(rowParent));
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if(NS_FAILED(res)) return res;
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if (!rowParent) return NS_ERROR_NULL_POINTER;
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res = rowParent->GetNextSibling(getter_AddRefs(parentSibling));
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if(NS_FAILED(res)) return res;
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while (parentSibling)
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{
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res = parentSibling->GetFirstChild(getter_AddRefs(nextRow));
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if(NS_FAILED(res)) return res;
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if (nextRow && IsRowNode(nextRow))
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{
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element = do_QueryInterface(nextRow);
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if(element)
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{
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aRow = element.get();
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NS_ADDREF(aRow);
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}
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return NS_OK;
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}
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#ifdef DEBUG
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printf("GetNextRow: firstChild of row's parent's sibling is not a TR!\n");
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#endif
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// We arrive here only if a table section has no children
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// or first child of section is not a row (bad HTML!)
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res = parentSibling->GetNextSibling(getter_AddRefs(parentSibling));
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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::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> curCell;
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nsCOMPtr<nsIDOMNode> cellParent;
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PRInt32 cellOffset, startRowIndex, startColIndex;
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nsresult res = GetCellContext(selection, table, curCell, 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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PRInt32 curStartRowIndex, curStartColIndex, rowSpan, colSpan, actualRowSpan, actualColSpan;
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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,
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actualRowSpan, actualColSpan, 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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nsAutoEditBatch beginBatching(this);
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// Use column after current cell if requested
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if (aAfter)
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{
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startColIndex += colSpan;
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//Detect when user is adding after a COLSPAN=0 case
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// Assume they want to stop the "0" behavior and
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// really add a new column. Thus we set the
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// colspan to its true value
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if (colSpan == 0)
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SetColSpan(curCell, actualColSpan);
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}
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PRInt32 rowCount, colCount, rowIndex;
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res = GetTableSize(table, rowCount, colCount);
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if (NS_FAILED(res)) return res;
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PRInt32 lastColumn = colCount - 1;
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//We reset caret in destructor...
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nsSetCaretAfterTableEdit setCaret(this, table, startRowIndex, startColIndex, ePreviousRow);
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//.. so suppress Rules System selection munging
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nsAutoTxnsConserveSelection dontChangeSelection(this);
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nsCOMPtr<nsIDOMElement> rowElement;
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for ( rowIndex = 0; rowIndex < rowCount; rowIndex++)
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{
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if (startColIndex < colCount)
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{
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// We are inserting before an existing column
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res = GetCellDataAt(table, rowIndex, startColIndex, *getter_AddRefs(curCell),
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curStartRowIndex, curStartColIndex, rowSpan, colSpan,
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actualRowSpan, actualColSpan, isSelected);
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if (NS_FAILED(res)) return res;
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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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// Note: we do nothing if colsSpan=0,
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// since it should automatically span the new column
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if (colSpan > 0)
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SetColSpan(curCell, colSpan+aNumber);
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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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// We are inserting after all existing columns
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//TODO: Make sure table is "well formed" (call NormalizeTable)
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// before appending new column
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// Get current row and append new cells after last cell in row
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if(rowIndex == 0)
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res = GetFirstRow(table.get(), *getter_AddRefs(rowElement));
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else
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res = GetNextRow(rowElement.get(), *getter_AddRefs(rowElement));
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if (NS_FAILED(res)) return res;
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nsCOMPtr<nsIDOMNode> lastCell;
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nsCOMPtr<nsIDOMNode> rowNode = do_QueryInterface(rowElement);
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if (!rowElement) return NS_ERROR_FAILURE;
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res = rowElement->GetLastChild(getter_AddRefs(lastCell));
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if (NS_FAILED(res)) return res;
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if (!lastCell) return NS_ERROR_FAILURE;
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curCell = do_QueryInterface(lastCell);
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if (curCell)
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{
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// Simply add same number of cells to each row
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// Although tempted to check cell indexes for curCell,
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// the effects of COLSPAN>1 in some cells makes this futile!
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// We must use NormalizeTable first to assure proper
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// that there are cells in each cellmap location
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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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return res;
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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> curCell;
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nsCOMPtr<nsIDOMNode> cellParent;
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PRInt32 cellOffset, startRowIndex, startColIndex;
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nsresult res = GetCellContext(selection, table, curCell, 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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|
PRInt32 curStartRowIndex, curStartColIndex, rowSpan, colSpan, actualRowSpan, actualColSpan;
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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,
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actualRowSpan, actualColSpan, 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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nsCOMPtr<nsIDOMElement> parentRow;
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res = GetElementOrParentByTagName("tr", curCell, getter_AddRefs(parentRow));
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if (NS_FAILED(res)) return res;
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if (!parentRow) return NS_ERROR_NULL_POINTER;
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PRInt32 rowCount, colCount;
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res = GetTableSize(table, rowCount, colCount);
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if (NS_FAILED(res)) return res;
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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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nsAutoEditBatch beginBatching(this);
|
|
|
|
if (aAfter)
|
|
{
|
|
// Use row after current cell
|
|
startRowIndex += actualRowSpan;
|
|
// offset to use for new row insert
|
|
newRowOffset += actualRowSpan;
|
|
|
|
//Detect when user is adding after a ROWSPAN=0 case
|
|
// Assume they want to stop the "0" behavior and
|
|
// really add a new row. Thus we set the
|
|
// rowspan to its true value
|
|
if (rowSpan == 0)
|
|
SetRowSpan(curCell, actualRowSpan);
|
|
}
|
|
|
|
//We control selection resetting after the insert...
|
|
nsSetCaretAfterTableEdit setCaret(this, table, startRowIndex, startColIndex, ePreviousColumn);
|
|
//...so suppress Rules System selection munging
|
|
nsAutoTxnsConserveSelection dontChangeSelection(this);
|
|
|
|
PRInt32 cellsInRow = 0;
|
|
if (startRowIndex < rowCount)
|
|
{
|
|
// We are inserting above an existing row
|
|
// Get each cell in the insert row to adjust for COLSPAN effects while we
|
|
// count how many cells are needed
|
|
PRInt32 colIndex = 0;
|
|
// This returns NS_TABLELAYOUT_CELL_NOT_FOUND when we run past end of row,
|
|
// which passes the NS_SUCCEEDED macro
|
|
while ( NS_OK == GetCellDataAt(table, newRowOffset, colIndex, *getter_AddRefs(curCell),
|
|
curStartRowIndex, curStartColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, isSelected) )
|
|
{
|
|
if (curCell)
|
|
{
|
|
if (curStartRowIndex < startRowIndex)
|
|
{
|
|
// We have a cell spanning this location
|
|
// Simply increase its rowspan
|
|
//Note that if rowSpan == 0, we do nothing,
|
|
// since that cell should automatically extend into the new row
|
|
if (rowSpan > 0)
|
|
SetRowSpan(curCell, rowSpan+aNumber);
|
|
} else {
|
|
// Count the number of cells we need to add to the new row
|
|
cellsInRow += actualColSpan;
|
|
}
|
|
// Next cell in row
|
|
colIndex += actualColSpan;
|
|
}
|
|
else
|
|
colIndex++;
|
|
}
|
|
} else {
|
|
// We are adding a new row after all others
|
|
// If it weren't for colspan=0 effect,
|
|
// we could simply use colCount for number of new cells...
|
|
cellsInRow = colCount;
|
|
|
|
// ...but we must compensate for all cells with rowSpan = 0 in the last row
|
|
PRInt32 lastRow = rowCount-1;
|
|
PRInt32 tempColIndex = 0;
|
|
while ( NS_OK == GetCellDataAt(table, lastRow, tempColIndex, *getter_AddRefs(curCell),
|
|
curStartRowIndex, curStartColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, isSelected) )
|
|
{
|
|
if (rowSpan == 0)
|
|
cellsInRow -= actualColSpan;
|
|
|
|
tempColIndex += actualColSpan;
|
|
}
|
|
}
|
|
|
|
if (cellsInRow > 0)
|
|
{
|
|
for (PRInt32 row = 0; row < aNumber; row++)
|
|
{
|
|
// Create a new row
|
|
nsCOMPtr<nsIDOMElement> newRow;
|
|
res = CreateElementWithDefaults("tr", getter_AddRefs(newRow));
|
|
if (NS_SUCCEEDED(res))
|
|
{
|
|
if (!newRow) return NS_ERROR_FAILURE;
|
|
|
|
for (PRInt32 i = 0; i < cellsInRow; i++)
|
|
{
|
|
nsCOMPtr<nsIDOMElement> newCell;
|
|
res = CreateElementWithDefaults("td", getter_AddRefs(newCell));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!newCell) return NS_ERROR_FAILURE;
|
|
|
|
// Don't use transaction system yet! (not until entire row is inserted)
|
|
nsCOMPtr<nsIDOMNode>resultNode;
|
|
res = newRow->AppendChild(newCell, getter_AddRefs(resultNode));
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
// Use transaction system to insert the entire row+cells
|
|
// (Note that rows are inserted at same childoffset each time)
|
|
res = nsEditor::InsertNode(newRow, parentOfRow, newRowOffset);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
// Editor helper only
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::DeleteTable(nsCOMPtr<nsIDOMElement> &aTable, nsCOMPtr<nsIDOMSelection> &aSelection)
|
|
{
|
|
nsCOMPtr<nsIDOMNode> tableParent;
|
|
PRInt32 tableOffset;
|
|
if(NS_FAILED(aTable->GetParentNode(getter_AddRefs(tableParent))) || !tableParent)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// Save offset we need to restore the selection
|
|
if(NS_FAILED(GetChildOffset(aTable, tableParent, tableOffset)))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsresult res = DeleteNode(aTable);
|
|
|
|
// Place selection just before the table
|
|
aSelection->Collapse(tableParent, tableOffset);
|
|
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::DeleteTable()
|
|
{
|
|
nsCOMPtr<nsIDOMSelection> selection;
|
|
nsCOMPtr<nsIDOMElement> table;
|
|
nsCOMPtr<nsIDOMElement> cell;
|
|
nsCOMPtr<nsIDOMNode> cellParent;
|
|
PRInt32 cellOffset, startRowIndex, startColIndex;
|
|
nsresult res = GetCellContext(selection, table, cell, cellParent, cellOffset, startRowIndex, startColIndex);
|
|
|
|
if (NS_SUCCEEDED(res))
|
|
{
|
|
nsAutoEditBatch beginBatching(this);
|
|
res = DeleteTable(table, selection);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::DeleteTableCell(PRInt32 aNumber)
|
|
{
|
|
nsCOMPtr<nsIDOMSelection> selection;
|
|
nsCOMPtr<nsIDOMElement> table;
|
|
nsCOMPtr<nsIDOMElement> cell;
|
|
nsCOMPtr<nsIDOMNode> cellParent;
|
|
PRInt32 cellOffset, startRowIndex, startColIndex;
|
|
|
|
nsresult res = nsEditor::GetSelection(getter_AddRefs(selection));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!selection) return NS_ERROR_FAILURE;
|
|
|
|
nsAutoEditBatch beginBatching(this);
|
|
|
|
for (PRInt32 i = 0; i < aNumber; i++)
|
|
{
|
|
res = GetCellContext(selection, table, cell, cellParent, cellOffset, startRowIndex, startColIndex);
|
|
if (NS_FAILED(res)) return res;
|
|
if (!cell) return NS_ERROR_NULL_POINTER;
|
|
|
|
if (1 == GetNumberOfCellsInRow(table, startRowIndex))
|
|
{
|
|
nsCOMPtr<nsIDOMElement> parentRow;
|
|
res = GetElementOrParentByTagName("tr", cell, getter_AddRefs(parentRow));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!parentRow) return NS_ERROR_NULL_POINTER;
|
|
|
|
// We should delete the row instead,
|
|
// but first check if its the only row left
|
|
// so we can delete the entire table
|
|
PRInt32 rowCount, colCount;
|
|
res = GetTableSize(table, rowCount, colCount);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (rowCount == 1)
|
|
return DeleteTable(table, selection);
|
|
|
|
// We need to call DeleteTableRow to handle cells with rowspan
|
|
res = DeleteTableRow(1);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
else
|
|
{
|
|
// More than 1 cell in the row
|
|
|
|
// We clear the selection to avoid problems when nodes in the selection are deleted,
|
|
// The setCaret object will call SetCaretAfterTableEdit in it's destructor
|
|
selection->ClearSelection();
|
|
nsSetCaretAfterTableEdit setCaret(this, table, startRowIndex, startColIndex, ePreviousColumn);
|
|
nsAutoTxnsConserveSelection dontChangeSelection(this);
|
|
|
|
res = DeleteNode(cell);
|
|
// If we fail, don't try to delete any more cells???
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::DeleteTableCellContents()
|
|
{
|
|
nsCOMPtr<nsIDOMSelection> selection;
|
|
nsCOMPtr<nsIDOMElement> table;
|
|
nsCOMPtr<nsIDOMElement> cell;
|
|
nsCOMPtr<nsIDOMNode> cellParent;
|
|
PRInt32 cellOffset, startRowIndex, startColIndex;
|
|
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;
|
|
|
|
|
|
// We clear the selection to avoid problems when nodes in the selection are deleted,
|
|
selection->ClearSelection();
|
|
nsSetCaretAfterTableEdit setCaret(this, table, startRowIndex, startColIndex, ePreviousColumn);
|
|
//Don't let Rules System change the selection
|
|
nsAutoTxnsConserveSelection dontChangeSelection(this);
|
|
|
|
nsAutoEditBatch beginBatching(this);
|
|
|
|
nsCOMPtr<nsIDOMNodeList> nodeList;
|
|
res = cell->GetChildNodes(getter_AddRefs(nodeList));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (!nodeList) return NS_ERROR_FAILURE;
|
|
PRUint32 nodeListLength;
|
|
res = nodeList->GetLength(&nodeListLength);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
for (PRUint32 i = 0; i < nodeListLength; i++)
|
|
{
|
|
|
|
nsCOMPtr<nsIDOMNode> child;
|
|
res = cell->GetLastChild(getter_AddRefs(child));
|
|
if (NS_FAILED(res)) return res;
|
|
res = DeleteNode(child);
|
|
if (NS_FAILED(res)) return res;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::DeleteTableColumn(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;
|
|
|
|
res = GetTableSize(table, rowCount, colCount);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Shortcut the case of deleting all columns in table
|
|
if(startColIndex == 0 && aNumber >= colCount)
|
|
return DeleteTable(table, selection);
|
|
|
|
nsAutoEditBatch beginBatching(this);
|
|
|
|
// Check for counts too high
|
|
aNumber = PR_MIN(aNumber,(colCount-startColIndex));
|
|
|
|
// Scan through cells in row to do rowspan adjustments
|
|
nsCOMPtr<nsIDOMElement> curCell;
|
|
PRInt32 curStartRowIndex, curStartColIndex, rowSpan, colSpan, actualRowSpan, actualColSpan;
|
|
PRBool isSelected;
|
|
PRInt32 rowIndex = 0;
|
|
|
|
for (PRInt32 i = 0; i < aNumber; i++)
|
|
{
|
|
do {
|
|
res = GetCellDataAt(table, rowIndex, startColIndex, *getter_AddRefs(curCell),
|
|
curStartRowIndex, curStartColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, isSelected);
|
|
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (curCell)
|
|
{
|
|
// This must always be >= 1
|
|
NS_ASSERTION((actualRowSpan > 0),"Effective ROWSPAN = 0 in DeleteTableColumn");
|
|
|
|
// Find cells that don't start in column we are deleting
|
|
if (curStartColIndex < startColIndex || colSpan > 1 || colSpan == 0)
|
|
{
|
|
// We have a cell spanning this location
|
|
// Decrease its colspan to keep table rectangular,
|
|
// but if colSpan=0, it will adjust automatically
|
|
if (colSpan > 0)
|
|
{
|
|
NS_ASSERTION((colSpan > 1),"Bad COLSPAN in DeleteTableColumn");
|
|
SetColSpan(curCell,colSpan-1);
|
|
}
|
|
if (curStartColIndex == startColIndex)
|
|
{
|
|
// Cell is in column to be deleted,
|
|
// but delete contents of cell instead of cell itself
|
|
selection->Collapse(curCell,0);
|
|
DeleteTableCellContents();
|
|
}
|
|
// To next cell in column
|
|
rowIndex += actualRowSpan;
|
|
} else {
|
|
// Delete the cell
|
|
if (1 == GetNumberOfCellsInRow(table, rowIndex))
|
|
{
|
|
// Only 1 cell in row - delete the row
|
|
nsCOMPtr<nsIDOMElement> parentRow;
|
|
res = GetElementOrParentByTagName("tr", cell, getter_AddRefs(parentRow));
|
|
if (NS_FAILED(res)) return res;
|
|
if(!parentRow) return NS_ERROR_NULL_POINTER;
|
|
|
|
// But first check if its the only row left
|
|
// so we can delete the entire table
|
|
// (This should never happen but it's the safe thing to do)
|
|
PRInt32 rowCount, colCount;
|
|
res = GetTableSize(table, rowCount, colCount);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (rowCount == 1)
|
|
return DeleteTable(table, selection);
|
|
|
|
// Delete the row by placing caret in cell we were to delete
|
|
// We need to call DeleteTableRow to handle cells with rowspan
|
|
selection->Collapse(cell,0);
|
|
res = DeleteTableRow(1);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Note that we don't incremenet rowIndex
|
|
// since a row was deleted and "next"
|
|
// row now has current rowIndex
|
|
} else {
|
|
|
|
selection->ClearSelection();
|
|
nsSetCaretAfterTableEdit setCaret(this, table, curStartRowIndex, curStartColIndex, ePreviousColumn);
|
|
//Don't let Rules System change the selection
|
|
nsAutoTxnsConserveSelection dontChangeSelection(this);
|
|
|
|
res = DeleteNode(curCell);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
//Skipover any rows spanned by this cell
|
|
rowIndex += actualRowSpan;
|
|
}
|
|
}
|
|
}
|
|
} while (curCell);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
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;
|
|
|
|
res = GetTableSize(table, rowCount, colCount);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// 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, actualRowSpan, actualColSpan;
|
|
PRBool isSelected;
|
|
PRInt32 colIndex = 0;
|
|
do {
|
|
res = GetCellDataAt(table, startRowIndex, colIndex, *getter_AddRefs(curCell),
|
|
curStartRowIndex, curStartColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, isSelected);
|
|
|
|
// We don't fail if we don't find a cell, so this must be real bad
|
|
if(NS_FAILED(res)) return res;
|
|
|
|
// Find cells that don't start in row we are deleting
|
|
if (curCell)
|
|
{
|
|
//Real colspan must always be >= 1
|
|
NS_ASSERTION((actualColSpan > 0),"Effective COLSPAN = 0 in DeleteTableRow");
|
|
if (curStartRowIndex < startRowIndex)
|
|
{
|
|
// We have a cell spanning this location
|
|
// Decrease its rowspan to keep table rectangular
|
|
// but we don't need to do this if rowspan=0,
|
|
// since it will automatically adjust
|
|
if (rowSpan > 0)
|
|
SetRowSpan(curCell, PR_MAX((startRowIndex - curStartRowIndex), actualRowSpan - aNumber));
|
|
}
|
|
// Skip over locations spanned by this cell
|
|
colIndex += actualColSpan;
|
|
}
|
|
} 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;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::JoinTableCells()
|
|
{
|
|
nsCOMPtr<nsIDOMSelection> selection;
|
|
nsCOMPtr<nsIDOMElement> table;
|
|
nsCOMPtr<nsIDOMElement> cell;
|
|
nsCOMPtr<nsIDOMNode> cellParent;
|
|
PRInt32 cellOffset, startRowIndex, startColIndex, rowSpan, colSpan, actualRowSpan, actualColSpan;
|
|
PRBool isSelected;
|
|
|
|
PRInt32 rowCount, colCount;
|
|
nsresult res = GetTableSize(table, rowCount, colCount);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
res = GetCellContext(selection, table, cell, cellParent, cellOffset, startRowIndex, startColIndex);
|
|
if (NS_FAILED(res)) return res;
|
|
if(!cell) return NS_ERROR_NULL_POINTER;
|
|
|
|
res = GetCellDataAt(table, startRowIndex, startColIndex, *getter_AddRefs(cell),
|
|
startRowIndex, startColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, isSelected);
|
|
if (NS_FAILED(res)) return res;
|
|
if(!cell) return NS_ERROR_NULL_POINTER;
|
|
|
|
//*** Initial test: just merge with cell to the right
|
|
|
|
nsCOMPtr<nsIDOMElement> cell2;
|
|
PRInt32 startRowIndex2, startColIndex2, rowSpan2, colSpan2, actualRowSpan2, actualColSpan2;
|
|
PRBool isSelected2;
|
|
res = GetCellDataAt(table, startRowIndex, startColIndex+actualColSpan, *getter_AddRefs(cell2),
|
|
startRowIndex2, startColIndex2, rowSpan2, colSpan2,
|
|
actualRowSpan2, actualColSpan2, isSelected2);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
nsAutoEditBatch beginBatching(this);
|
|
//Don't let Rules System change the selection
|
|
nsAutoTxnsConserveSelection dontChangeSelection(this);
|
|
|
|
nsCOMPtr<nsIDOMNode> parentNode = do_QueryInterface(cellParent);
|
|
nsCOMPtr<nsIDOMNode> cellNode = do_QueryInterface(cell);
|
|
nsCOMPtr<nsIDOMNode> cellNode2 = do_QueryInterface(cell2);
|
|
if(cellNode && cellNode2 && parentNode)
|
|
{
|
|
PRInt32 insertIndex = 0;
|
|
|
|
// Get index of last child in target cell
|
|
nsCOMPtr<nsIDOMNodeList> childNodes;
|
|
res = cellNode->GetChildNodes(getter_AddRefs(childNodes));
|
|
if ((NS_SUCCEEDED(res)) && (childNodes))
|
|
{
|
|
// Start inserting just after last child
|
|
PRUint32 len;
|
|
res = childNodes->GetLength(&len);
|
|
if (NS_FAILED(res)) return res;
|
|
insertIndex = (PRInt32)len;
|
|
}
|
|
|
|
// Move content from cell2 to cell
|
|
nsCOMPtr<nsIDOMNode> cellChild;
|
|
res = cell2->GetFirstChild(getter_AddRefs(cellChild));
|
|
if (NS_FAILED(res)) return res;
|
|
while (cellChild)
|
|
{
|
|
nsCOMPtr<nsIDOMNode> nextChild;
|
|
res = cellChild->GetNextSibling(getter_AddRefs(nextChild));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
res = DeleteNode(cellChild);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
res = nsEditor::InsertNode(cellChild, cellNode, insertIndex);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
cellChild = nextChild;
|
|
insertIndex++;
|
|
}
|
|
// Reset target cell's spans
|
|
res = SetColSpan(cell, actualColSpan+actualColSpan2);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Delete cells whose contents were moved
|
|
res = DeleteNode(cell2);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
}
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::NormalizeTable(nsIDOMElement *aTable)
|
|
{
|
|
nsCOMPtr<nsIDOMElement> table;
|
|
nsresult res = NS_ERROR_FAILURE;
|
|
res = GetElementOrParentByTagName("table", aTable, getter_AddRefs(table));
|
|
if (NS_FAILED(res)) return res;
|
|
// Don't fail if we didn't find a table
|
|
if (!table) return NS_OK;
|
|
|
|
PRInt32 rowCount, colCount, rowIndex, colIndex;
|
|
res = GetTableSize(table, rowCount, colCount);
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
nsAutoEditBatch beginBatching(this);
|
|
|
|
nsCOMPtr<nsIDOMElement> cell;
|
|
PRInt32 startRowIndex, startColIndex, rowSpan, colSpan, actualRowSpan, actualColSpan;
|
|
PRBool isSelected;
|
|
|
|
#if 0
|
|
// This isn't working yet -- layout errors contribute!
|
|
|
|
// First scan all cells in row to detect bad rowspan values
|
|
for(rowIndex = 0; rowIndex < rowCount; rowIndex++)
|
|
{
|
|
PRInt32 minRowSpan = 0x7fffffff; //XXX: Shouldn't there be a define somewhere for MaxInt for PRInt32
|
|
for(colIndex = 0; colIndex < colCount; colIndex++)
|
|
{
|
|
res = GetCellDataAt(aTable, rowIndex, colIndex, *getter_AddRefs(cell),
|
|
startRowIndex, startColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, isSelected);
|
|
// NOTE: This is a *real* failure.
|
|
// GetCellDataAt passes if cell is missing from cellmap
|
|
if(NS_FAILED(res)) return res;
|
|
if(cell && rowSpan > 0 && rowSpan < minRowSpan)
|
|
minRowSpan = rowSpan;
|
|
}
|
|
if(minRowSpan > 1)
|
|
{
|
|
PRInt32 spanDiff = minRowSpan - 1;
|
|
for(colIndex = 0; colIndex < colCount; colIndex++)
|
|
{
|
|
res = GetCellDataAt(aTable, rowIndex, colIndex, *getter_AddRefs(cell),
|
|
startRowIndex, startColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, isSelected);
|
|
// NOTE: This is a *real* failure.
|
|
// GetCellDataAt passes if cell is missing from cellmap
|
|
if(NS_FAILED(res)) return res;
|
|
// Fixup rowspans for cells starting in current row
|
|
if(cell && rowSpan > 0 &&
|
|
startRowIndex == rowIndex &&
|
|
startColIndex == colIndex )
|
|
{
|
|
// Set rowspan so there's at least one cell with ROWSPAN=1
|
|
SetRowSpan(cell, rowSpan-spanDiff);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Get Table size again in case above changed anything
|
|
res = GetTableSize(table, rowCount, colCount);
|
|
if (NS_FAILED(res)) return res;
|
|
#endif
|
|
|
|
// Fill in missing cellmap locations with empty cells
|
|
for(rowIndex = 0; rowIndex < rowCount; rowIndex++)
|
|
{
|
|
nsCOMPtr<nsIDOMElement> previousCellInRow;
|
|
|
|
for(colIndex = 0; colIndex < colCount; colIndex++)
|
|
{
|
|
res = GetCellDataAt(aTable, rowIndex, colIndex, *getter_AddRefs(cell),
|
|
startRowIndex, startColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, isSelected);
|
|
// NOTE: This is a *real* failure.
|
|
// GetCellDataAt passes if cell is missing from cellmap
|
|
if(NS_FAILED(res)) return res;
|
|
if (!cell)
|
|
{
|
|
//We are missing a cell at a cellmap location
|
|
#ifdef DEBUG
|
|
printf("NormalizeTable found missing cell at row=%d, col=%d\n", rowIndex, colIndex);
|
|
#endif
|
|
// Add a cell after the previous Cell in the current row
|
|
if(previousCellInRow)
|
|
{
|
|
// Insert a new cell after (PR_TRUE), and return the new cell to us
|
|
res = InsertCell(previousCellInRow, 1, 1, PR_TRUE, getter_AddRefs(cell));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
// Set this so we use returned new "cell" to set previousCellInRow below
|
|
if(cell)
|
|
startRowIndex = rowIndex;
|
|
} else {
|
|
// We don't have any cells in this row -- We are really messed up!
|
|
#ifdef DEBUG
|
|
printf("NormalizeTable found no cells in row=%d, col=%d\n", rowIndex, colIndex);
|
|
#endif
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
// Save the last cell found in the same row we are scanning
|
|
if(startRowIndex == rowIndex)
|
|
{
|
|
previousCellInRow = cell;
|
|
}
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
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(NS_GET_IID(nsITableCellLayout), (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(NS_GET_IID(nsITableLayout),
|
|
(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, actualRowSpan, actualColSpan;
|
|
PRBool isSelected;
|
|
res = GetCellDataAt(aTable, rowIndex, colIndex, *getter_AddRefs(cell),
|
|
startRowIndex, startColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, isSelected);
|
|
if (NS_FAILED(res)) return res;
|
|
if (cell)
|
|
{
|
|
// Only count cells that start in row we are working with
|
|
if (startRowIndex == rowIndex)
|
|
cellCount++;
|
|
|
|
//Next possible location for a cell
|
|
colIndex += actualColSpan;
|
|
}
|
|
else
|
|
colIndex++;
|
|
|
|
} while (cell);
|
|
|
|
return cellCount;
|
|
}
|
|
|
|
/* Not scriptable: For convenience in C++
|
|
Use GetTableRowCount and GetTableColumnCount from JavaScript
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::GetTableSize(nsIDOMElement *aTable, PRInt32& aRowCount, PRInt32& aColCount)
|
|
{
|
|
nsresult res = NS_ERROR_FAILURE;
|
|
aRowCount = 0;
|
|
aColCount = 0;
|
|
nsCOMPtr<nsIDOMElement> table;
|
|
// Get the selected talbe or the table enclosing the selection anchor
|
|
res = GetElementOrParentByTagName("table", aTable, getter_AddRefs(table));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!table) return NS_ERROR_FAILURE;
|
|
|
|
// frames are not ref counted, so don't use an nsCOMPtr
|
|
nsITableLayout *tableLayoutObject;
|
|
res = GetTableLayoutObject(table.get(), &tableLayoutObject);
|
|
if (NS_FAILED(res)) return res;
|
|
if (!tableLayoutObject)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
return tableLayoutObject->GetTableSize(aRowCount, aColCount);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::GetCellDataAt(nsIDOMElement* aTable, PRInt32 aRowIndex, PRInt32 aColIndex, nsIDOMElement* &aCell,
|
|
PRInt32& aStartRowIndex, PRInt32& aStartColIndex,
|
|
PRInt32& aRowSpan, PRInt32& aColSpan,
|
|
PRInt32& aActualRowSpan, PRInt32& aActualColSpan,
|
|
PRBool& aIsSelected)
|
|
{
|
|
nsresult res=NS_ERROR_FAILURE;
|
|
aCell = nsnull;
|
|
aStartRowIndex = 0;
|
|
aStartColIndex = 0;
|
|
aRowSpan = 0;
|
|
aColSpan = 0;
|
|
aActualRowSpan = 0;
|
|
aActualColSpan = 0;
|
|
aIsSelected = PR_FALSE;
|
|
|
|
if (!aTable)
|
|
{
|
|
// Get the selected table or the table enclosing the selection anchor
|
|
nsCOMPtr<nsIDOMElement> table;
|
|
res = GetElementOrParentByTagName("table", nsnull, getter_AddRefs(table));
|
|
if (NS_FAILED(res)) return res;
|
|
if (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_FAILED(res)) return res;
|
|
if (!tableLayoutObject) return NS_ERROR_FAILURE;
|
|
|
|
// Note that this returns NS_TABLELAYOUT_CELL_NOT_FOUND when
|
|
// the index(es) are out of bounds
|
|
return tableLayoutObject->GetCellDataAt(aRowIndex, aColIndex, aCell,
|
|
aStartRowIndex, aStartColIndex,
|
|
aRowSpan, aColSpan,
|
|
aActualRowSpan, aActualColSpan,
|
|
aIsSelected);
|
|
}
|
|
|
|
// When all you want is the cell
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::GetCellAt(nsIDOMElement* aTable, PRInt32 aRowIndex, PRInt32 aColIndex, nsIDOMElement* &aCell)
|
|
{
|
|
PRInt32 startRowIndex, startColIndex, rowSpan, colSpan, actualRowSpan, actualColSpan;
|
|
PRBool isSelected;
|
|
return GetCellDataAt(aTable, aRowIndex, aColIndex, aCell,
|
|
startRowIndex, startColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, 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)) return res;
|
|
if (!aSelection) return NS_ERROR_FAILURE;
|
|
|
|
// Find the first selected cell
|
|
res = GetFirstSelectedCell(aCell);
|
|
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;
|
|
|
|
res = aSelection->GetAnchorNode(getter_AddRefs(anchorNode));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!anchorNode) return NS_ERROR_FAILURE;
|
|
|
|
// Get the cell enclosing the selection anchor
|
|
res = GetElementOrParentByTagName("td", anchorNode, getter_AddRefs(aCell));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!aCell) return NS_ERROR_FAILURE;
|
|
}
|
|
// Get containing table and the immediate parent of the cell
|
|
res = GetElementOrParentByTagName("table", aCell, getter_AddRefs(aTable));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!aTable) return NS_ERROR_FAILURE;
|
|
|
|
res = aCell->GetParentNode(getter_AddRefs(aCellParent));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!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)) return res;
|
|
if (!selection) return NS_ERROR_FAILURE;
|
|
|
|
// 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_FAILED(res)) return res;
|
|
if (!enumerator) return NS_ERROR_FAILURE;
|
|
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,
|
|
NS_GET_IID(nsIContentIterator),
|
|
getter_AddRefs(iter));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!iter) return NS_ERROR_FAILURE;
|
|
|
|
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();
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::SetCaretAfterTableEdit(nsIDOMElement* aTable, PRInt32 aRow, PRInt32 aCol, PRInt32 aDirection)
|
|
{
|
|
nsresult res = NS_ERROR_NOT_INITIALIZED;
|
|
if (!aTable) return res;
|
|
|
|
nsCOMPtr<nsIDOMSelection>selection;
|
|
res = nsEditor::GetSelection(getter_AddRefs(selection));
|
|
if (NS_FAILED(res)) return res;
|
|
|
|
if (!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, aRow, aCol, *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 already at beginning of row or column
|
|
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;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLEditor::GetSelectedOrParentTableElement(nsIDOMElement* &aTableElement, nsString& aTagName, PRBool &aIsSelected)
|
|
{
|
|
aTableElement = nsnull;
|
|
aTagName = "";
|
|
aIsSelected = PR_FALSE;
|
|
|
|
nsCOMPtr<nsIDOMSelection> selection;
|
|
nsresult res = nsEditor::GetSelection(getter_AddRefs(selection));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!selection) return NS_ERROR_FAILURE;
|
|
|
|
nsAutoString tableName("table");
|
|
nsAutoString trName("tr");
|
|
nsAutoString tdName("td");
|
|
|
|
nsCOMPtr<nsIDOMNode> anchorNode;
|
|
|
|
// Find the first selected cell
|
|
// TODO: Handle multiple cells selected!
|
|
nsCOMPtr<nsIDOMElement> firstCell;
|
|
|
|
nsCOMPtr<nsIDOMElement> tableElement;
|
|
res = GetFirstSelectedCell(tableElement);
|
|
if(NS_FAILED(res)) return res;
|
|
if (tableElement)
|
|
{
|
|
aTagName = tdName;
|
|
aIsSelected = PR_TRUE;
|
|
goto SET_RETURN_ELEMENT;
|
|
}
|
|
|
|
// See if table or row is selected
|
|
res = GetSelectedElement(tableName, getter_AddRefs(tableElement));
|
|
if(NS_FAILED(res)) return res;
|
|
if (tableElement)
|
|
{
|
|
aTagName = tableName;
|
|
aIsSelected = PR_TRUE;
|
|
goto SET_RETURN_ELEMENT;
|
|
}
|
|
res = GetSelectedElement(trName, getter_AddRefs(tableElement));
|
|
if(NS_FAILED(res)) return res;
|
|
if (tableElement)
|
|
{
|
|
aTagName = trName;
|
|
aIsSelected = PR_TRUE;
|
|
goto SET_RETURN_ELEMENT;
|
|
}
|
|
|
|
// Look for a table cell parent
|
|
res = selection->GetAnchorNode(getter_AddRefs(anchorNode));
|
|
if (NS_FAILED(res)) return res;
|
|
if (!anchorNode) return NS_ERROR_FAILURE;
|
|
|
|
res = GetElementOrParentByTagName(tdName, anchorNode, getter_AddRefs(tableElement));
|
|
if(NS_FAILED(res)) return res;
|
|
if (tableElement)
|
|
{
|
|
aTagName = tdName;
|
|
SET_RETURN_ELEMENT:
|
|
aTableElement = tableElement.get();
|
|
NS_ADDREF(aTableElement);
|
|
}
|
|
return res;
|
|
}
|