gecko-dev/editor/base/nsHTMLEditorLog.cpp

1428 строки
27 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Pierre Phaneuf <pp@ludusdesign.com>
*/
#include <stdio.h>
#include "nsIDOMElement.h"
#include "nsIDOMAttr.h"
#include "nsIDOMNode.h"
#include "nsIDOMNodeList.h"
#include "nsIDOMCharacterData.h"
#include "nsIDOMNamedNodeMap.h"
#include "nsIDOMSelection.h"
#include "nsIDOMRange.h"
#include "nsHTMLEditorLog.h"
#include "nsCOMPtr.h"
#include "nsEditorTxnLog.h"
#define LOCK_LOG(doc)
#define UNLOCK_LOG(doc)
nsHTMLEditorLog::nsHTMLEditorLog()
{
mRefCnt = 0;
mLocked = -1;
mEditorTxnLog = 0;
}
nsHTMLEditorLog::~nsHTMLEditorLog()
{
StopLogging();
}
NS_IMPL_ADDREF_INHERITED(nsHTMLEditorLog, nsHTMLEditor);
NS_IMPL_RELEASE_INHERITED(nsHTMLEditorLog, nsHTMLEditor);
NS_IMETHODIMP
nsHTMLEditorLog::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (!aInstancePtr)
return NS_ERROR_NULL_POINTER;
*aInstancePtr = nsnull;
if (aIID.Equals(NS_GET_IID(nsIEditorLogging))) {
*aInstancePtr = (void*)(nsIEditorLogging*)this;
NS_ADDREF_THIS();
return NS_OK;
}
return nsHTMLEditor::QueryInterface(aIID, aInstancePtr);
}
NS_IMETHODIMP
nsHTMLEditorLog::SetInlineProperty(nsIAtom *aProperty, const nsString *aAttribute, const nsString *aValue)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
nsAutoString propStr;
aProperty->ToString(propStr);
PrintSelection();
Write("window.editorShell.SetTextProperty(\"");
PrintUnicode(propStr);
Write("\", \"");
if (aAttribute)
PrintUnicode(*aAttribute);
Write("\", \"");
if (aValue)
PrintUnicode(*aValue);
Write("\");\n");
Flush();
}
return nsHTMLEditor::SetInlineProperty(aProperty, aAttribute, aValue);
}
NS_IMETHODIMP
nsHTMLEditorLog::SetParagraphFormat(const nsString& aParagraphFormat)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.SetParagraphFormat(\"");
PrintUnicode(aParagraphFormat);
Write("\");\n");
Flush();
}
return nsHTMLEditor::SetParagraphFormat(aParagraphFormat);
}
NS_IMETHODIMP
nsHTMLEditorLog::RemoveInlineProperty(nsIAtom *aProperty, const nsString *aAttribute)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
nsAutoString propStr;
aProperty->ToString(propStr);
PrintSelection();
Write("window.editorShell.RemoveTextProperty(\"");
PrintUnicode(propStr);
Write("\", \"");
if (aAttribute)
PrintUnicode(*aAttribute);
Write("\");\n");
Flush();
}
return nsHTMLEditor::RemoveInlineProperty(aProperty, aAttribute);
}
NS_IMETHODIMP
nsHTMLEditorLog::DeleteSelection(nsIEditor::EDirection aAction)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.DeleteSelection(");
WriteInt("%d", aAction);
Write(");\n");
Flush();
}
return nsHTMLEditor::DeleteSelection(aAction);
}
NS_IMETHODIMP
nsHTMLEditorLog::TypedText(const nsString& aStringToInsert, PRInt32 aAction)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.TypedText(\"");
PrintUnicode(aStringToInsert);
Write("\", ");
WriteInt("%d", aAction);
Write(");\n");
Flush();
}
return nsHTMLEditor::TypedText(aStringToInsert, aAction);
}
NS_IMETHODIMP
nsHTMLEditorLog::InsertText(const nsString& aStringToInsert)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.InsertText(\"");
PrintUnicode(aStringToInsert);
Write("\");\n");
Flush();
}
return nsHTMLEditor::InsertText(aStringToInsert);
}
NS_IMETHODIMP
nsHTMLEditorLog::InsertBreak()
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.InsertBreak();\n");
Flush();
}
return nsHTMLEditor::InsertBreak();
}
NS_IMETHODIMP
nsHTMLEditorLog::Undo(PRUint32 aCount)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.Undo();\n");
Flush();
}
return nsHTMLEditor::Undo(aCount);
}
NS_IMETHODIMP
nsHTMLEditorLog::Redo(PRUint32 aCount)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.Redo();\n");
Flush();
}
return nsHTMLEditor::Redo(aCount);
}
NS_IMETHODIMP
nsHTMLEditorLog::BeginTransaction()
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.BeginBatchChanges();\n");
Flush();
}
return nsHTMLEditor::BeginTransaction();
}
NS_IMETHODIMP
nsHTMLEditorLog::EndTransaction()
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.EndBatchChanges();\n");
Flush();
}
return nsHTMLEditor::EndTransaction();
}
NS_IMETHODIMP
nsHTMLEditorLog::SelectAll()
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.SelectAll();\n");
Flush();
}
return nsHTMLEditor::SelectAll();
}
NS_IMETHODIMP
nsHTMLEditorLog::BeginningOfDocument()
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.BeginningOfDocument();\n");
Flush();
}
return nsHTMLEditor::BeginningOfDocument();
}
NS_IMETHODIMP
nsHTMLEditorLog::EndOfDocument()
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.EndOfDocument();\n");
Flush();
}
return nsHTMLEditor::EndOfDocument();
}
NS_IMETHODIMP
nsHTMLEditorLog::Cut()
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.Cut();\n");
Flush();
}
return nsHTMLEditor::Cut();
}
NS_IMETHODIMP
nsHTMLEditorLog::Copy()
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.Copy();\n");
Flush();
}
return nsHTMLEditor::Copy();
}
NS_IMETHODIMP
nsHTMLEditorLog::Paste(PRInt32 aSelectionType)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.Paste();\n");
Flush();
}
return nsHTMLEditor::Paste(aSelectionType);
}
NS_IMETHODIMP
nsHTMLEditorLog::PasteAsQuotation(PRInt32 aSelectionType)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.PasteAsQuotation();\n");
Flush();
}
return nsHTMLEditor::PasteAsQuotation(aSelectionType);
}
NS_IMETHODIMP
nsHTMLEditorLog::PasteAsPlaintextQuotation(PRInt32 aSelectionType)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.PasteAsQuotation();\n");
Flush();
}
return nsHTMLEditor::PasteAsPlaintextQuotation(aSelectionType);
}
NS_IMETHODIMP
nsHTMLEditorLog::PasteAsCitedQuotation(const nsString& aCitation,
PRInt32 aSelectionType)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.PasteAsCitedQuotation(\"");
PrintUnicode(aCitation);
Write("\");\n");
Flush();
}
return nsHTMLEditor::PasteAsCitedQuotation(aCitation, aSelectionType);
}
NS_IMETHODIMP
nsHTMLEditorLog::InsertAsQuotation(const nsString& aQuotedText,
nsIDOMNode **aNodeInserted)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.InsertAsQuotation(\"");
PrintUnicode(aQuotedText);
Write("\");\n");
Flush();
}
return nsHTMLEditor::InsertAsQuotation(aQuotedText, aNodeInserted);
}
NS_IMETHODIMP
nsHTMLEditorLog::InsertAsPlaintextQuotation(const nsString& aQuotedText,
nsIDOMNode **aNodeInserted)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.InsertAsQuotation(\"");
PrintUnicode(aQuotedText);
Write("\");\n");
Flush();
}
return nsHTMLEditor::InsertAsPlaintextQuotation(aQuotedText, aNodeInserted);
}
NS_IMETHODIMP
nsHTMLEditorLog::InsertAsCitedQuotation(const nsString& aQuotedText,
const nsString& aCitation,
PRBool aInsertHTML,
const nsString& aCharset,
nsIDOMNode **aNodeInserted)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.InsertAsCitedQuotation(\"");
PrintUnicode(aQuotedText);
Write("\", \"");
PrintUnicode(aCitation);
Write("\");\n");
Flush();
}
return nsHTMLEditor::InsertAsCitedQuotation(aQuotedText, aCitation, aInsertHTML,
aCharset, aNodeInserted);
}
NS_IMETHODIMP
nsHTMLEditorLog::SetBackgroundColor(const nsString& aColor)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.SetBackgroundColor(\"");
PrintUnicode(aColor);
Write("\");\n");
Flush();
}
return nsHTMLEditor::SetBackgroundColor(aColor);
}
NS_IMETHODIMP
nsHTMLEditorLog::SetBodyAttribute(const nsString& aAttr, const nsString& aValue)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.SetBodyAttribute(\"");
PrintUnicode(aAttr);
Write("\", \"");
PrintUnicode(aValue);
Write("\");\n");
Flush();
}
return nsHTMLEditor::SetBodyAttribute(aAttr, aValue);
}
NS_IMETHODIMP
nsHTMLEditorLog:: InsertTableCell(PRInt32 aNumber, PRBool aAfter)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.InsertTableCell(\"");
Write("\");\n");
Flush();
}
return nsHTMLEditor::InsertTableCell(aNumber, aAfter);
}
NS_IMETHODIMP
nsHTMLEditorLog:: InsertTableColumn(PRInt32 aNumber, PRBool aAfter)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.InsertTableColumn(\"");
Write("\");\n");
Flush();
}
return nsHTMLEditor::InsertTableColumn(aNumber, aAfter);
}
NS_IMETHODIMP
nsHTMLEditorLog:: InsertTableRow(PRInt32 aNumber, PRBool aAfter)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.InsertTableRow(\"");
Write("\");\n");
Flush();
}
return nsHTMLEditor::InsertTableRow(aNumber, aAfter);
}
NS_IMETHODIMP
nsHTMLEditorLog:: DeleteTable()
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.DeleteTable();\n");
Flush();
}
return nsHTMLEditor::DeleteTable();
}
NS_IMETHODIMP
nsHTMLEditorLog:: DeleteTableCell(PRInt32 aNumber)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.DeleteTableCell(\"");
Write("\");\n");
Flush();
}
return nsHTMLEditor::DeleteTableCell(aNumber);
}
NS_IMETHODIMP
nsHTMLEditorLog:: DeleteTableCellContents()
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.DeleteTableCellContents();\n");
Flush();
}
return nsHTMLEditor::DeleteTableCellContents();
}
NS_IMETHODIMP
nsHTMLEditorLog:: DeleteTableColumn(PRInt32 aNumber)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.DeleteTableColumn(\"");
Write("\");\n");
Flush();
}
return nsHTMLEditor::DeleteTableColumn(aNumber);
}
NS_IMETHODIMP
nsHTMLEditorLog:: DeleteTableRow(PRInt32 aNumber)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.DeleteTableRow(\"");
Write("\");\n");
Flush();
}
return nsHTMLEditor::DeleteTableRow(aNumber);
}
NS_IMETHODIMP
nsHTMLEditorLog:: JoinTableCells(PRBool aMergeNonContiguousContents)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.JoinTableCells();\n");
Flush();
}
return nsHTMLEditor::JoinTableCells(aMergeNonContiguousContents);
}
NS_IMETHODIMP
nsHTMLEditorLog:: SplitTableCell()
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.SplitTableCell();\n");
Flush();
}
return nsHTMLEditor::SplitTableCell();
}
NS_IMETHODIMP
nsHTMLEditorLog:: NormalizeTable(nsIDOMElement *aTable)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.NormalizeTable(\"");
Write("\");\n");
Flush();
}
return nsHTMLEditor::NormalizeTable(aTable);
}
NS_IMETHODIMP
nsHTMLEditorLog::SwitchTableCellHeaderType(nsIDOMElement *aSourceCell, nsIDOMElement **aNewCell)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
Write("window.editorShell.SwitchTableCellHeaderType(\"");
Write("\");\n");
Flush();
}
return nsHTMLEditor::SwitchTableCellHeaderType(aSourceCell, aNewCell);
}
NS_IMETHODIMP
nsHTMLEditorLog::MakeOrChangeList(const nsString& aListType)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.MakeOrChangeList(\"");
PrintUnicode(aListType);
Write("\");\n");
Flush();
}
return nsHTMLEditor::MakeOrChangeList(aListType);
}
NS_IMETHODIMP
nsHTMLEditorLog::Indent(const nsString& aIndent)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.Indent(\"");
PrintUnicode(aIndent);
Write("\");\n");
Flush();
}
return nsHTMLEditor::Indent(aIndent);
}
NS_IMETHODIMP
nsHTMLEditorLog::Align(const nsString& aAlign)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
PrintSelection();
Write("window.editorShell.Align(\"");
PrintUnicode(aAlign);
Write("\");\n");
Flush();
}
return nsHTMLEditor::Align(aAlign);
}
NS_IMETHODIMP
nsHTMLEditorLog::InsertElementAtSelection(nsIDOMElement* aElement, PRBool aDeleteSelection)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
if (!aElement)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDOMNode> node = do_QueryInterface(aElement);
if (!node)
return NS_ERROR_NULL_POINTER;
PrintSelection();
PrintNode(node, 0);
Write("window.editorShell.InsertElementAtSelection(n0, ");
Write(aDeleteSelection ? "true" : "false");
Write(");\n");
Flush();
}
return nsHTMLEditor::InsertElementAtSelection(aElement, aDeleteSelection);
}
NS_IMETHODIMP
nsHTMLEditorLog::InsertLinkAroundSelection(nsIDOMElement* aAnchorElement)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
if (!aAnchorElement)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDOMNode> node = do_QueryInterface(aAnchorElement);
if (!node)
return NS_ERROR_NULL_POINTER;
PrintSelection();
PrintNode(node, 0);
Write("window.editorShell.InsertLinkAroundSelection(n0);\n");
Flush();
}
return nsHTMLEditor::InsertLinkAroundSelection(aAnchorElement);
}
NS_IMETHODIMP
nsHTMLEditorLog::ApplyStyleSheet(const nsString& aURL, nsICSSStyleSheet **aStyleSheet)
{
nsAutoHTMLEditorLogLock logLock(this);
if (!mLocked && mFileSpec)
{
// Note that the editorShell (IDL) method does
// not return the style sheet created from aURL
// TODO: Investigate if RemoveStyleSheet works or do we have to
// store the returned style sheet!
Write("window.editorShell.ApplyStyleSheet(\"");
PrintUnicode(aURL);
Write("\");\n");
Flush();
}
return nsHTMLEditor::ApplyStyleSheet(aURL, aStyleSheet);
}
NS_IMETHODIMP
nsHTMLEditorLog::StartLogging(nsIFileSpec *aLogFile)
{
nsresult result = NS_ERROR_FAILURE;
if (!aLogFile)
return NS_ERROR_NULL_POINTER;
if (mFileSpec)
{
result = StopLogging();
if (NS_FAILED(result))
return result;
}
mFileSpec = do_QueryInterface(aLogFile);
if (!mFileSpec)
result = NS_ERROR_NULL_POINTER;
result = mFileSpec->OpenStreamForWriting();
if (NS_FAILED(result))
{
mFileSpec = nsCOMPtr<nsIFileSpec>();
return result;
}
if (mTxnMgr)
{
mEditorTxnLog = new nsEditorTxnLog(this);
if (mEditorTxnLog)
{
NS_ADDREF(mEditorTxnLog);
mTxnMgr->AddListener(mEditorTxnLog);
}
else
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
NS_IMETHODIMP
nsHTMLEditorLog::StopLogging()
{
if (mTxnMgr && mEditorTxnLog)
mTxnMgr->RemoveListener(mEditorTxnLog);
if (mEditorTxnLog)
{
NS_RELEASE(mEditorTxnLog);
mEditorTxnLog = 0;
}
if (mFileSpec)
{
mFileSpec->CloseStream();
mFileSpec = nsCOMPtr<nsIFileSpec>();
}
return NS_OK;
}
nsresult
nsHTMLEditorLog::Write(const char *aBuffer)
{
nsresult result;
if (!aBuffer)
return NS_ERROR_NULL_POINTER;
PRInt32 len = strlen(aBuffer);
if (mFileSpec)
{
PRInt32 retval;
result = mFileSpec->Write(aBuffer, len, &retval);
if (NS_FAILED(result))
return result;
#ifdef VERY_SLOW
result = mFileSpec->Flush();
if (NS_FAILED(result))
return result;
#endif // VERY_SLOW
}
else
fwrite(aBuffer, 1, len, stdout);
return NS_OK;
}
nsresult
nsHTMLEditorLog::WriteInt(const char *aFormat, PRInt32 aInt)
{
if (!aFormat)
return NS_ERROR_NULL_POINTER;
char buf[256];
sprintf(buf, aFormat, aInt);
return Write(buf);
}
nsresult
nsHTMLEditorLog::Flush()
{
nsresult result = NS_OK;
if (mFileSpec)
result = mFileSpec->Flush();
else
fflush(stdout);
return result;
}
nsresult
nsHTMLEditorLog::PrintUnicode(const nsString &aString)
{
const PRUnichar *uc = aString.GetUnicode();
PRInt32 i, len = aString.Length();
char buf[10];
for (i = 0; i < len; i++)
{
if (nsCRT::IsAsciiAlpha(uc[i]) || nsCRT::IsAsciiDigit(uc[i]) || uc[i] == ' ')
sprintf(buf, "%c", uc[i]);
else
sprintf(buf, "\\u%.4x", uc[i]);
nsresult result = Write(buf);
if (NS_FAILED(result))
return result;
}
return NS_OK;
}
nsresult
nsHTMLEditorLog::PrintSelection()
{
nsCOMPtr<nsIDOMSelection> selection;
nsresult result;
PRInt32 rangeCount;
result = GetSelection(getter_AddRefs(selection));
if (NS_FAILED(result))
return result;
result = selection->GetRangeCount(&rangeCount);
if (NS_FAILED(result))
return result;
Write("selRanges = [ ");
PRInt32 i, j;
nsCOMPtr<nsIDOMRange> range;
nsCOMPtr<nsIDOMNode> startNode;
nsCOMPtr<nsIDOMNode> endNode;
PRInt32 startOffset, endOffset;
for (i = 0; i < rangeCount; i++)
{
result = selection->GetRangeAt(i, getter_AddRefs(range));
if (NS_FAILED(result))
return result;
result = range->GetStartContainer(getter_AddRefs(startNode));
if (NS_FAILED(result))
return result;
if (!startNode)
return NS_ERROR_NULL_POINTER;
result = range->GetStartOffset(&startOffset);
if (NS_FAILED(result))
return result;
result = range->GetEndContainer(getter_AddRefs(endNode));
if (NS_FAILED(result))
return result;
if (!endNode)
return NS_ERROR_NULL_POINTER;
result = range->GetEndOffset(&endOffset);
if (NS_FAILED(result))
return result;
PRInt32 *offsetArray = 0;
PRInt32 arrayLength = 0;
result = GetNodeTreeOffsets(startNode, &offsetArray, &arrayLength);
if (NS_FAILED(result))
return result;
if (i != 0)
Write(",\n ");
Write("[ [[");
for (j = 0; j < arrayLength; j++)
{
if (j != 0)
Write(", ");
WriteInt("%d", offsetArray[j]);
}
Write("], ");
WriteInt("%3d", startOffset);
Write("], ");
if (startNode != endNode)
{
delete []offsetArray;
offsetArray = 0;
arrayLength = 0;
result = GetNodeTreeOffsets(endNode, &offsetArray, &arrayLength);
if (NS_FAILED(result))
return result;
}
Write("[[");
for (j = 0; j < arrayLength; j++)
{
if (j != 0)
Write(", ");
WriteInt("%d", offsetArray[j]);
}
delete []offsetArray;
Write("], ");
WriteInt("%3d", endOffset);
Write("] ]");
}
Write(" ];\nEditorSetSelectionFromOffsets(selRanges);\n");
Flush();
return NS_OK;
}
nsresult
nsHTMLEditorLog::PrintElementNode(nsIDOMNode *aNode, PRInt32 aDepth)
{
nsresult result;
nsAutoString tag, name, value;
nsCOMPtr<nsIDOMElement> ele = do_QueryInterface(aNode);
nsCOMPtr<nsIDOMNamedNodeMap> map;
if (!ele)
return NS_ERROR_NULL_POINTER;
result = ele->GetTagName(tag);
if (NS_FAILED(result))
return result;
Write("n");
WriteInt("%d", aDepth);
Write(" = window.editorShell.editorDocument.createElement(\"");
PrintUnicode(tag);
Write("\");\n");
result = aNode->GetAttributes(getter_AddRefs(map));
if (NS_FAILED(result))
return result;
if (!map)
return NS_ERROR_NULL_POINTER;
PRUint32 i, len;
nsCOMPtr<nsIDOMNode> attr;
result = map->GetLength(&len);
if (NS_FAILED(result))
return result;
for (i = 0; i < len; i++)
{
result = map->Item(i, getter_AddRefs(attr));
if (NS_FAILED(result))
return result;
if (!attr)
return NS_ERROR_NULL_POINTER;
result = PrintAttributeNode(attr, aDepth);
if (NS_FAILED(result))
return result;
}
result = PrintNodeChildren(aNode, aDepth);
return result;
}
nsresult
nsHTMLEditorLog::PrintAttributeNode(nsIDOMNode *aNode, PRInt32 aDepth)
{
nsresult result;
nsCOMPtr<nsIDOMAttr> attr = do_QueryInterface(aNode);
if (!attr)
return NS_ERROR_NULL_POINTER;
nsAutoString str;
result = attr->GetName(str);
if (NS_FAILED(result))
return result;
Write("a");
WriteInt("%d", aDepth);
Write(" = window.editorShell.editorDocument.createAttribute(\"");
PrintUnicode(str);
Write("\");\n");
result = attr->GetValue(str);
if (NS_FAILED(result))
return result;
Write("a");
WriteInt("%d", aDepth);
Write(".value = \"");
PrintUnicode(str);
Write("\";\n");
Write("n");
WriteInt("%d", aDepth);
Write(".setAttributeNode(a");
WriteInt("%d", aDepth);
Write(");\n");
return NS_OK;
}
nsresult
nsHTMLEditorLog::PrintNodeChildren(nsIDOMNode *aNode, PRInt32 aDepth)
{
nsresult result;
if (!aNode)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDOMNodeList> list;
result = aNode->GetChildNodes(getter_AddRefs(list));
if (NS_FAILED(result))
return result;
if (!list)
{
// Must not have any children!
return NS_OK;
}
PRUint32 i, len;
nsCOMPtr<nsIDOMNode> node;
result = list->GetLength(&len);
if (NS_FAILED(result))
return result;
for (i = 0; i < len; i++)
{
result = list->Item(i, getter_AddRefs(node));
if (NS_FAILED(result))
return result;
result = PrintNode(node, aDepth + 1);
if (NS_FAILED(result))
return result;
Write("n");
WriteInt("%d", aDepth);
Write(".appendChild(n");
WriteInt("%d", aDepth+1);
Write(");\n");
}
return NS_OK;
}
nsresult
nsHTMLEditorLog::PrintTextNode(nsIDOMNode *aNode, PRInt32 aDepth)
{
nsresult result;
nsCOMPtr<nsIDOMCharacterData> cd = do_QueryInterface(aNode);
if (!cd)
return NS_ERROR_NULL_POINTER;
nsAutoString str;
result = cd->GetData(str);
if (NS_FAILED(result))
return result;
Write("n");
WriteInt("%d", aDepth);
Write(" = window.editorShell.editorDocument.createTextNode(\"");
PrintUnicode(str);
Write("\");\n");
return NS_OK;
}
nsresult
nsHTMLEditorLog::PrintNode(nsIDOMNode *aNode, PRInt32 aDepth)
{
nsresult result = NS_OK;
if (!aNode)
return NS_ERROR_NULL_POINTER;
PRUint16 nodeType;
result = aNode->GetNodeType(&nodeType);
switch (nodeType)
{
case nsIDOMNode::ELEMENT_NODE:
result = PrintElementNode(aNode, aDepth);
break;
case nsIDOMNode::TEXT_NODE:
result = PrintTextNode(aNode, aDepth);
break;
case nsIDOMNode::ATTRIBUTE_NODE:
result = PrintAttributeNode(aNode, aDepth);
break;
case nsIDOMNode::CDATA_SECTION_NODE:
case nsIDOMNode::ENTITY_REFERENCE_NODE:
case nsIDOMNode::ENTITY_NODE:
case nsIDOMNode::PROCESSING_INSTRUCTION_NODE:
case nsIDOMNode::COMMENT_NODE:
case nsIDOMNode::DOCUMENT_NODE:
case nsIDOMNode::DOCUMENT_TYPE_NODE:
case nsIDOMNode::DOCUMENT_FRAGMENT_NODE:
case nsIDOMNode::NOTATION_NODE:
default:
break;
}
Flush();
return result;
}
nsresult
nsHTMLEditorLog::GetNodeTreeOffsets(nsIDOMNode *aNode, PRInt32 **aResult, PRInt32 *aLength)
{
nsresult result;
if (!aNode || !aResult || !aLength)
return NS_ERROR_NULL_POINTER;
*aResult = 0;
*aLength = 0;
nsIDOMNode *parent = aNode;
PRInt32 i = 0;
// Count the number of parent nodes above aNode.
while (parent)
{
result = parent->GetParentNode(&parent);
if (NS_FAILED(result))
return result;
if (parent)
++i;
}
// Allocate an array big enough to hold all the offsets.
*aResult = new PRInt32[i];
if (!aResult)
return NS_ERROR_OUT_OF_MEMORY;
*aLength = i;
while (aNode && i > 0)
{
PRInt32 offset = 0;
result = aNode->GetParentNode(&parent);
if (NS_FAILED(result))
{
delete [](*aResult);
*aResult = 0;
*aLength = 0;
return result;
}
while (aNode)
{
result = aNode->GetPreviousSibling(&aNode);
if (NS_FAILED(result))
{
delete [](*aResult);
*aResult = 0;
*aLength = 0;
return result;
}
if (aNode)
++offset;
}
(*aResult)[--i] = offset;
aNode = parent;
}
return NS_OK;
}
nsresult
nsHTMLEditorLog::Lock()
{
mLocked++;
return NS_OK;
}
nsresult
nsHTMLEditorLog::Unlock()
{
--mLocked;
return NS_OK;
}
#ifdef NEVER_ENABLE_THIS_JAVASCRIPT
function EditorGetNodeAtOffsets(offsets)
{
var node = null;
var i;
node = window.editorShell.editorDocument;
for (i = 0; i < offsets.length; i++)
{
node = node.childNodes[offsets[i]];
}
return node;
}
function EditorSetSelectionFromOffsets(selRanges)
{
var rangeArr, start, end, i, node, offset;
var selection = window.editorShell.editorSelection;
selection.clearSelection();
for (i = 0; i < selRanges.length; i++)
{
rangeArr = selRanges[i];
start = rangeArr[0];
end = rangeArr[1];
var range = window.editorShell.editorDocument.createRange();
node = EditorGetNodeAtOffsets(start[0]);
offset = start[1];
range.setStart(node, offset);
node = EditorGetNodeAtOffsets(end[0]);
offset = end[1];
range.setEnd(node, offset);
selection.addRange(range);
}
}
#endif