gecko-dev/editor/libeditor/EditTransactionBase.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "mozilla/EditTransactionBase.h"

#include "mozilla/Logging.h"

#include "ChangeAttributeTransaction.h"
#include "ChangeStyleTransaction.h"
#include "CompositionTransaction.h"
#include "DeleteNodeTransaction.h"
#include "DeleteRangeTransaction.h"
#include "DeleteTextTransaction.h"
#include "EditAggregateTransaction.h"
#include "InsertNodeTransaction.h"
#include "InsertTextTransaction.h"
#include "JoinNodesTransaction.h"
#include "MoveNodeTransaction.h"
#include "PlaceholderTransaction.h"
#include "ReplaceTextTransaction.h"
#include "SplitNodeTransaction.h"

#include "nsError.h"
#include "nsISupportsBase.h"

namespace mozilla {

NS_IMPL_CYCLE_COLLECTION_CLASS(EditTransactionBase)

NS_IMPL_CYCLE_COLLECTION_UNLINK_0(EditTransactionBase)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(EditTransactionBase)
  // We don't have anything to traverse, but some of our subclasses do.
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(EditTransactionBase)
  NS_INTERFACE_MAP_ENTRY(nsITransaction)
  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsITransaction)
NS_INTERFACE_MAP_END

NS_IMPL_CYCLE_COLLECTING_ADDREF(EditTransactionBase)
NS_IMPL_CYCLE_COLLECTING_RELEASE(EditTransactionBase)

NS_IMETHODIMP EditTransactionBase::RedoTransaction() {
  MOZ_LOG(GetLogModule(), LogLevel::Info, ("%p %s", this, __FUNCTION__));
  return DoTransaction();
}

NS_IMETHODIMP EditTransactionBase::GetIsTransient(bool* aIsTransient) {
  MOZ_LOG(GetLogModule(), LogLevel::Verbose,
          ("%p %s returned false", this, __FUNCTION__));
  *aIsTransient = false;
  return NS_OK;
}

NS_IMETHODIMP EditTransactionBase::Merge(nsITransaction* aOtherTransaction,
                                         bool* aDidMerge) {
  MOZ_LOG(GetLogModule(), LogLevel::Info,
          ("%p %s(aOtherTransaction=%p) returned false", this, __FUNCTION__,
           aOtherTransaction));
  *aDidMerge = false;
  return NS_OK;
}

// static
LogModule* EditTransactionBase::GetLogModule() {
  static LazyLogModule sLog("EditorTransaction");
  return static_cast<LogModule*>(sLog);
}

#define NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(aClass)           \
  aClass* EditTransactionBase::GetAs##aClass() { return nullptr; } \
  const aClass* EditTransactionBase::GetAs##aClass() const { return nullptr; }

NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(ChangeAttributeTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(ChangeStyleTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(CompositionTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(DeleteNodeTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(DeleteRangeTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(DeleteTextTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(EditAggregateTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(InsertNodeTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(InsertTextTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(JoinNodesTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(MoveNodeTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(PlaceholderTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(ReplaceTextTransaction)
NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS(SplitNodeTransaction)

#undef NS_IMPL_EDITTRANSACTIONBASE_GETASMETHODS

}  // namespace mozilla