editor/libeditor/DeleteMultipleRangesTransaction.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef DeleteMultipleRangesTransactionBase_h
   7 #define DeleteMultipleRangesTransactionBase_h
   8
   9 #include "DeleteContentTransactionBase.h"
  10 #include "EditAggregateTransaction.h"
  11
  12 #include "EditorForwards.h"
  13
  14 #include "nsCycleCollectionParticipant.h"
  15 #include "nsISupportsImpl.h"
  16
  17 namespace mozilla {
  18
  19 /**
  20  * An abstract transaction that removes text or node.
  21  */
  22 class DeleteMultipleRangesTransaction final : public EditAggregateTransaction {
  23  public:
  24   static already_AddRefed<DeleteMultipleRangesTransaction> Create() {
  25     RefPtr<DeleteMultipleRangesTransaction> transaction =
  26         new DeleteMultipleRangesTransaction();
  27     return transaction.forget();
  28   }
  29
  30   NS_DECL_ISUPPORTS_INHERITED
  31   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DeleteMultipleRangesTransaction,
  32                                            EditAggregateTransaction)
  33
  34   NS_DECL_EDITTRANSACTIONBASE
  35   NS_DECL_EDITTRANSACTIONBASE_GETASMETHODS_OVERRIDE(
  36       DeleteMultipleRangesTransaction)
  37
  38   MOZ_CAN_RUN_SCRIPT NS_IMETHOD RedoTransaction() final;
  39
  40   void AppendChild(DeleteContentTransactionBase& aTransaction);
  41   void AppendChild(DeleteRangeTransaction& aTransaction);
  42
  43   /**
  44    * Return latest caret point suggestion of child transaction.
  45    */
  46   EditorDOMPoint SuggestPointToPutCaret() const;
  47
  48  protected:
  49   ~DeleteMultipleRangesTransaction() = default;
  50 };
  51
  52 }  // namespace mozilla
  53
  54 #endif  // #ifndef DeleteMultipleRangesTransaction_h