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11f8ac97cd
sr=sfraser@netscape.com,mscott@netscape.com r=jfrancis@netscape.com * nsITransaction, nsITransactionListenter, nsITransactionManager have been XPIDL'ized and moved into mozilla/editor/txmgr/idl. The versions of these interfaces in mozilla/editor/txmgr/public are being CVS removed. * Renamed Do(), Undo(), and Redo() to DoTransaction(), UndoTransaction(), and RedoTransaction() to avoid reserved word problems in languages like JS. I did a sweep through editor and mailnews to remove these methods. * PeekUndoStack() and PeekRedoStack() now return an AddRef'd pointer. * Removed GetUndoString(), GetRedoString() and Write() from the nsITransaction interface. Neither editor or mailnews really made use of these methods. * Removed Write() from the nsITransactionManager.cpp interface. * The Transaction Manager now supports weak references. * Added support for nsITransactionList to the TransactionManager to allow access to all transactions on the Undo and Redo stacks, as well as auto-aggregated transactions. * Removed all references to nsITransactionDescription from txmgr and editor. * Added nsPIEditorTransaction and made all Editor internal transactions inherit from it so we can distinguish between our transactions and ones from 3rd parties. New files checked in: editor/txmgr/idl/nsITransaction.idl editor/txmgr/idl/nsITransactionList.idl editor/txmgr/idl/nsITransactionListener.idl editor/txmgr/idl/nsITransactionManager.idl editor/txmgr/src/nsITransactionList.cpp editor/txmgr/src/nsITransactionList.h editor/idl/nsPIEditorTransaction.idl Files that were CVS removed: editor/txmgr/public/nsITransaction.h editor/txmgr/public/nsITransactionListener.h editor/txmgr/public/nsITransactionManager.h editor/txmgr/idl/nsITransactionDescription.h editor/base/IMECommitTxn.cpp editor/base/IMECommitTxn.h Files modified: editor/Makefile.in editor/makefile.win editor/base/ChangeAttributeTxn.cpp editor/base/ChangeAttributeTxn.h editor/base/CreateElementTxn.cpp editor/base/CreateElementTxn.h editor/base/DeleteElementTxn.cpp editor/base/DeleteElementTxn.h editor/base/DeleteRangeTxn.cpp editor/base/DeleteRangeTxn.h editor/base/DeleteTextTxn.cpp editor/base/DeleteTextTxn.h editor/base/EditAggregateTxn.cpp editor/base/EditAggregateTxn.h editor/base/EditTxn.cpp editor/base/EditTxn.h editor/base/IMECommitTxn.cpp editor/base/IMECommitTxn.h editor/base/IMETextTxn.cpp editor/base/IMETextTxn.h editor/base/InsertElementTxn.cpp editor/base/InsertElementTxn.h editor/base/InsertTextTxn.cpp editor/base/InsertTextTxn.h editor/base/JoinElementTxn.cpp editor/base/JoinElementTxn.h editor/base/nsEditor.cpp editor/base/nsEditorShell.cpp editor/base/nsEditorShell.h editor/base/nsEditorTxnLog.cpp editor/base/nsStyleSheetTxns.cpp editor/base/nsStyleSheetTxns.h editor/base/PlaceholderTxn.cpp editor/base/PlaceholderTxn.h editor/base/SetDocTitleTxn.cpp editor/base/SetDocTitleTxn.h editor/base/SplitElementTxn.cpp editor/base/SplitElementTxn.h editor/idl/Makefile.in editor/idl/makefile.win editor/idl/MANIFEST editor/idl/nsIEditorShell.idl editor/macbuild/editor.mcp editor/macbuild/EditorIDL.mcp editor/txmgr/idl/Makefile.in editor/txmgr/idl/makefile.win editor/txmgr/idl/MANIFEST editor/txmgr/idl/nsITransactionManager.idl editor/txmgr/macbuild/txmgr.mcp editor/txmgr/macbuild/txmgrIDL.mcp editor/txmgr/public/Makefile.in editor/txmgr/public/makefile.win editor/txmgr/public/MANIFEST editor/txmgr/src/Makefile.in editor/txmgr/src/makefile.win editor/txmgr/src/nsTransactionItem.cpp editor/txmgr/src/nsTransactionItem.h editor/txmgr/src/nsTransactionList.cpp editor/txmgr/src/nsTransactionList.h editor/txmgr/src/nsTransactionManager.cpp editor/txmgr/src/nsTransactionManager.h editor/txmgr/src/nsTransactionManagerFactory.cpp editor/txmgr/src/nsTransactionStack.cpp editor/txmgr/src/nsTransactionStack.h editor/txmgr/tests/TestTXMgr.cpp editor/ui/composer/content/EditorCommandsDebug.js editor/ui/composer/content/editorOverlay.xul editor/ui/composer/locale/en-US/editorOverlay.dtd mailnews/base/src/nsMessenger.cpp mailnews/base/util/nsMsgTxn.cpp mailnews/base/util/nsMsgTxn.h mailnews/imap/src/nsImapMailFolder.cpp mailnews/imap/src/nsImapUndoTxn.cpp mailnews/imap/src/nsImapUndoTxn.h mailnews/local/src/nsLocalMailFolder.cpp mailnews/local/src/nsLocalUndoTxn.cpp mailnews/local/src/nsLocalUndoTxn.h
229 lines
6.5 KiB
C++
229 lines
6.5 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) 1998-1999 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 "SetDocTitleTxn.h"
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#include "nsEditor.h"
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#include "nsHTMLEditor.h"
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#include "nsIDOMNode.h"
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#include "nsIDOMNodeList.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMHTMLDocument.h"
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#include "nsIDOMText.h"
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#include "nsIDOMElement.h"
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// note that aEditor is not refcounted
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SetDocTitleTxn::SetDocTitleTxn()
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: EditTxn()
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, mIsTransient(PR_FALSE)
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{
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}
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NS_IMETHODIMP SetDocTitleTxn::Init(nsIHTMLEditor *aEditor,
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const nsString *aValue)
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{
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NS_ASSERTION(aEditor && aValue, "null args");
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if (!aEditor || !aValue) { return NS_ERROR_NULL_POINTER; }
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mEditor = aEditor;
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mValue = *aValue;
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return NS_OK;
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}
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SetDocTitleTxn::~SetDocTitleTxn()
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{
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}
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NS_IMETHODIMP SetDocTitleTxn::DoTransaction(void)
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{
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nsresult res = SetDomTitle(mValue);
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if (NS_FAILED(res)) return res;
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return SetDocTitle(mValue);
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}
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NS_IMETHODIMP SetDocTitleTxn::UndoTransaction(void)
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{
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return SetDocTitle(mUndoValue);
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}
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NS_IMETHODIMP SetDocTitleTxn::RedoTransaction(void)
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{
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return SetDocTitle(mValue);
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}
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nsresult SetDocTitleTxn::SetDocTitle(nsString& aTitle)
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{
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NS_ASSERTION(mEditor, "bad state");
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if (!mEditor) return NS_ERROR_NOT_INITIALIZED;
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nsCOMPtr<nsIDOMDocument> domDoc;
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nsCOMPtr<nsIEditor> editor = do_QueryInterface(mEditor);
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if (!editor) return NS_ERROR_FAILURE;
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nsresult res = editor->GetDocument(getter_AddRefs(domDoc));
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if (!domDoc) return NS_ERROR_FAILURE;
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nsCOMPtr<nsIDOMHTMLDocument> HTMLDoc = do_QueryInterface(domDoc);
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if (!HTMLDoc) return NS_ERROR_FAILURE;
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return HTMLDoc->SetTitle(aTitle);
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}
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nsresult SetDocTitleTxn::SetDomTitle(nsString& aTitle)
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{
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nsCOMPtr<nsIDOMDocument> domDoc;
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nsCOMPtr<nsIEditor> editor = do_QueryInterface(mEditor);
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if (!editor) return NS_ERROR_FAILURE;
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nsresult res = editor->GetDocument(getter_AddRefs(domDoc));
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if (!domDoc) return NS_ERROR_FAILURE;
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nsCOMPtr<nsIDOMNodeList> titleList;
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nsCOMPtr<nsIDOMNode>titleNode;
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nsCOMPtr<nsIDOMNode>headNode;
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nsCOMPtr<nsIDOMNode> resultNode;
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res = domDoc->GetElementsByTagName(NS_LITERAL_STRING("title"), getter_AddRefs(titleList));
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if (NS_FAILED(res)) return res;
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// First assume we will NOT really do anything
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// (transaction will not be pushed on stack)
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mIsTransient = PR_TRUE;
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if(titleList)
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{
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res = titleList->Item(0, getter_AddRefs(titleNode));
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if (NS_FAILED(res)) return res;
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if (titleNode)
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{
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// Delete existing child textnode of title node
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// (Note: all contents under a TITLE node are always in a single text node)
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nsCOMPtr<nsIDOMNode> child;
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res = titleNode->GetFirstChild(getter_AddRefs(child));
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if(NS_FAILED(res)) return res;
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if(child)
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{
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// Save current text as the undo value
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nsCOMPtr<nsIDOMCharacterData> textNode = do_QueryInterface(child);
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if(textNode)
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{
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textNode->GetData(mUndoValue);
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// If title text is identical to what already exists,
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// quit now (mIsTransient is now TRUE)
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if (mUndoValue == aTitle)
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return NS_OK;
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}
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res = editor->DeleteNode(child);
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if(NS_FAILED(res)) return res;
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}
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}
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}
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// We didn't return above, thus we really will be changing the title
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mIsTransient = PR_FALSE;
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// Get the <HEAD> node, create a <TITLE> and insert it under the HEAD
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nsCOMPtr<nsIDOMNodeList> headList;
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res = domDoc->GetElementsByTagName(NS_LITERAL_STRING("head"),getter_AddRefs(headList));
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if (NS_FAILED(res)) return res;
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if (!headList) return NS_ERROR_FAILURE;
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headList->Item(0, getter_AddRefs(headNode));
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if (!headNode) return NS_ERROR_FAILURE;
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PRBool newTitleNode = PR_FALSE;
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PRUint32 newTitleIndex = 0;
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if (!titleNode)
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{
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// Didn't find one above: Create a new one
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nsCOMPtr<nsIDOMElement>titleElement;
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res = domDoc->CreateElement(NS_LITERAL_STRING("title"), getter_AddRefs(titleElement));
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if (NS_FAILED(res)) return res;
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if (!titleElement) return NS_ERROR_FAILURE;
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titleNode = do_QueryInterface(titleElement);
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newTitleNode = PR_TRUE;
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// Get index so we append new title node
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// after all existing HEAD children
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nsCOMPtr<nsIDOMNodeList> children;
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res = headNode->GetChildNodes(getter_AddRefs(children));
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if (NS_FAILED(res)) return res;
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if (children)
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children->GetLength(&newTitleIndex);
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}
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// Append a text node under the TITLE
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// only if the title text isn't empty
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if (titleNode && aTitle.Length() > 0)
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{
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nsCOMPtr<nsIDOMText> textNode;
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res = domDoc->CreateTextNode(aTitle, getter_AddRefs(textNode));
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if (NS_FAILED(res)) return res;
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if (!textNode) return NS_ERROR_FAILURE;
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nsCOMPtr<nsIDOMNode> newNode = do_QueryInterface(textNode);
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if (!newNode) return NS_ERROR_FAILURE;
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if (newTitleNode)
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{
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// Not undoable: We will insert newTitleNode below
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res = titleNode->AppendChild(newNode, getter_AddRefs(resultNode));
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}
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else
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{
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// This is an undoable transaction
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res = editor->InsertNode(newNode, titleNode, 0);
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}
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if (NS_FAILED(res)) return res;
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}
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if (newTitleNode)
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{
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// Undoable transaction to insert title+text together
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res = editor->InsertNode(titleNode, headNode, newTitleIndex);
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}
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return res;
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}
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NS_IMETHODIMP SetDocTitleTxn::Merge(nsITransaction *aTransaction, PRBool *aDidMerge)
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{
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if (nsnull!=aDidMerge)
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*aDidMerge=PR_FALSE;
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return NS_OK;
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}
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NS_IMETHODIMP SetDocTitleTxn::GetTxnDescription(nsAWritableString& aString)
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{
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aString.Assign(NS_LITERAL_STRING("SetDocTitleTxn: "));
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aString += mValue;
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return NS_OK;
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}
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NS_IMETHODIMP SetDocTitleTxn::GetIsTransient(PRBool *aIsTransient)
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{
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if (!aIsTransient) return NS_ERROR_NULL_POINTER;
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*aIsTransient = mIsTransient;
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return NS_OK;
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}
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