80 lines
2.3 KiB
C++
80 lines
2.3 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 InsertTextTxn_h__
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#define InsertTextTxn_h__
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#include "EditTxn.h" // base class
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#include "nsAutoPtr.h" // nsRefPtr members
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#include "nsCycleCollectionParticipant.h" // various macros
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#include "nsID.h" // NS_DECLARE_STATIC_IID_ACCESSOR
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#include "nsISupportsImpl.h" // NS_DECL_ISUPPORTS_INHERITED
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#include "nsString.h" // nsString members
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#include "nscore.h" // NS_IMETHOD, nsAString
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class nsEditor;
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class nsITransaction;
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#define NS_INSERTTEXTTXN_IID \
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{ 0x8c9ad77f, 0x22a7, 0x4d01, \
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{ 0xb1, 0x59, 0x8a, 0x0f, 0xdb, 0x1d, 0x08, 0xe9 } }
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namespace mozilla {
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namespace dom {
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class Text;
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/**
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* A transaction that inserts text into a content node.
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*/
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class InsertTextTxn : public EditTxn
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_INSERTTEXTTXN_IID)
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/** @param aElement the text content node
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* @param aOffset the location in aElement to do the insertion
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* @param aString the new text to insert
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* @param aPresShell used to get and set the selection
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*/
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InsertTextTxn(Text& aTextNode, uint32_t aOffset, const nsAString& aString,
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nsEditor& aEditor);
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(InsertTextTxn, EditTxn)
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NS_DECL_EDITTXN
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NS_IMETHOD Merge(nsITransaction* aTransaction, bool* aDidMerge) override;
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/** Return the string data associated with this transaction */
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void GetData(nsString& aResult);
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private:
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virtual ~InsertTextTxn();
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/** Return true if aOtherTxn immediately follows this txn */
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bool IsSequentialInsert(InsertTextTxn& aOtherTxn);
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/** The Text node to operate upon */
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RefPtr<Text> mTextNode;
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/** The offset into mTextNode where the insertion is to take place */
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uint32_t mOffset;
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/** The text to insert into mTextNode at mOffset */
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nsString mStringToInsert;
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/** The editor, which we'll need to get the selection */
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nsEditor& mEditor;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(InsertTextTxn, NS_INSERTTEXTTXN_IID)
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} // namespace dom
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} // namespace mozilla
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#endif
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