зеркало из https://github.com/mozilla/gecko-dev.git
128 строки
3.3 KiB
C++
128 строки
3.3 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 License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "DeleteTableTxn.h"
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#include "nsEditor.h"
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#include "nsIDOMCharacterData.h"
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#include "nsIDOMSelection.h"
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#include "nsIPresShell.h"
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#include "EditAggregateTxn.h"
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static NS_DEFINE_IID(kDeleteTableTxnIID, DELETE_TABLE_TXN_IID);
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static NS_DEFINE_IID(kIDOMSelectionIID, NS_IDOMSELECTION_IID);
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nsIAtom *DeleteTableTxn::gDeleteTableTxnName;
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nsresult DeleteTableTxn::ClassInit()
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{
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if (nsnull==gDeleteTableTxnName)
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gDeleteTableTxnName = NS_NewAtom("NS_DeleteTableTxn");
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return NS_OK;
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}
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DeleteTableTxn::DeleteTableTxn()
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: EditTxn()
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{
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}
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DeleteTableTxn::~DeleteTableTxn()
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{
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}
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NS_IMETHODIMP DeleteTableTxn::Init(nsIDOMCharacterData *aElement,
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nsIDOMNode *aNode,
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nsIPresShell* aPresShell)
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{
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mElement = do_QueryInterface(aElement);
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mNodeToInsert = aNode;
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mPresShell = aPresShell;
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return NS_OK;
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}
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NS_IMETHODIMP DeleteTableTxn::Do(void)
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{
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//nsresult res = mElement->InsertData(mOffset, mStringToInsert);
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// advance caret: This requires the presentation shell to get the selection.
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nsresult res = NS_ERROR_FAILURE;
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nsCOMPtr<nsIDOMSelection> selection;
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res = mPresShell->GetSelection(getter_AddRefs(selection));
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if (NS_SUCCEEDED(res)) {
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res = selection->Collapse(mElement, 0 /*mOffset+1*/ /*+mStringToInsert.Length()*/);
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}
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return res;
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}
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NS_IMETHODIMP DeleteTableTxn::Undo(void)
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{
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nsresult result = NS_ERROR_FAILURE;
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#if 0
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PRUint32 length = mStringToInsert.Length();
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result = mElement->DeleteData(mOffset, length);
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if (NS_SUCCEEDED(result))
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{ // set the selection to the insertion point where the string was removed
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nsCOMPtr<nsIDOMSelection> selection;
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result = mPresShell->GetSelection(getter_AddRefs(selection));
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if (NS_SUCCEEDED(result)) {
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result = selection->Collapse(mElement, mOffset);
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}
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}
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#endif
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return result;
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}
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NS_IMETHODIMP DeleteTableTxn::Write(nsIOutputStream *aOutputStream)
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{
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return NS_OK;
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}
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NS_IMETHODIMP DeleteTableTxn::GetUndoString(nsString **aString)
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{
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if (nsnull!=aString)
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{
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**aString="Remove Table";
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}
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return NS_OK;
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}
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NS_IMETHODIMP DeleteTableTxn::GetRedoString(nsString **aString)
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{
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if (nsnull!=aString)
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{
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**aString="Insert Table";
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}
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return NS_OK;
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}
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/* ============= nsISupports implementation ====================== */
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NS_IMETHODIMP
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DeleteTableTxn::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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if (nsnull == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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if (aIID.Equals(kDeleteTableTxnIID)) {
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*aInstancePtr = (void*)(DeleteTableTxn*)this;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return (EditTxn::QueryInterface(aIID, aInstancePtr));
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}
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