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83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef CreateElementTransaction_h
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#define CreateElementTransaction_h
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#include "mozilla/EditorDOMPoint.h"
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#include "mozilla/EditTransactionBase.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/dom/Element.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsISupportsImpl.h"
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class nsAtom;
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/**
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* A transaction that creates a new node in the content tree.
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*/
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namespace mozilla {
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class EditorBase;
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class CreateElementTransaction final : public EditTransactionBase {
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protected:
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template <typename PT, typename CT>
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CreateElementTransaction(EditorBase& aEditorBase, nsAtom& aTag,
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const EditorDOMPointBase<PT, CT>& aPointToInsert);
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public:
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/**
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* Create a transaction for creating a new child node of the container of
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* aPointToInsert of type aTag.
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*
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* @param aEditorBase The editor which manages the transaction.
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* @param aTag The tag (P, HR, TABLE, etc.) for the new element.
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* @param aPointToInsert The new node will be inserted before the child at
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* aPointToInsert. If this refers end of the container
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* or after, the new node will be appended to the
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* container.
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*/
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template <typename PT, typename CT>
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static already_AddRefed<CreateElementTransaction> Create(
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EditorBase& aEditorBase, nsAtom& aTag,
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const EditorDOMPointBase<PT, CT>& aPointToInsert);
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(CreateElementTransaction,
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EditTransactionBase)
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NS_DECL_EDITTRANSACTIONBASE
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NS_DECL_EDITTRANSACTIONBASE_GETASMETHODS_OVERRIDE(CreateElementTransaction)
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MOZ_CAN_RUN_SCRIPT NS_IMETHOD RedoTransaction() override;
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dom::Element* GetNewElement() const { return mNewElement; }
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protected:
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virtual ~CreateElementTransaction() = default;
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/**
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* InsertNewNode() inserts mNewNode before the child node at mPointToInsert.
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*/
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MOZ_CAN_RUN_SCRIPT void InsertNewNode(ErrorResult& aError);
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// The document into which the new node will be inserted.
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RefPtr<EditorBase> mEditorBase;
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// The tag (mapping to object type) for the new element.
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RefPtr<nsAtom> mTag;
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// The DOM point we will insert mNewNode.
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EditorDOMPoint mPointToInsert;
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// The new node to insert.
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RefPtr<dom::Element> mNewElement;
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};
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} // namespace mozilla
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#endif // #ifndef CreateElementTransaction_h
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