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134 lines
5.0 KiB
C++
134 lines
5.0 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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#ifndef nsTextEditor_h__
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#define nsTextEditor_h__
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#include "nsITextEditor.h"
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#include "nsCOMPtr.h"
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#include "nsIDOMEventListener.h"
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#include "nsEditor.h"
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#include "nsTextEditRules.h"
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class nsIStyleContext;
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class nsIDOMRange;
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/**
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* The text editor implementation.<br>
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* Use to edit text represented as a DOM tree.
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* This class is used for editing both plain text and rich text (attributed text).
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*/
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class nsTextEditor : public nsEditor, public nsITextEditor
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{
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public:
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// see nsITextEditor for documentation
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//Interfaces for addref and release and queryinterface
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//NOTE macro used is for classes that inherit from
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// another class. Only the base class should use NS_DECL_ISUPPORTS
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NS_DECL_ISUPPORTS_INHERITED
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nsTextEditor();
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virtual ~nsTextEditor();
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//Initialization
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NS_IMETHOD Init(nsIDOMDocument *aDoc, nsIPresShell *aPresShell);
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// Editing Operations
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NS_IMETHOD SetTextProperty(nsIAtom *aProperty);
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NS_IMETHOD GetTextProperty(nsIAtom *aProperty, PRBool &aAny, PRBool &aAll);
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NS_IMETHOD RemoveTextProperty(nsIAtom *aProperty);
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NS_IMETHOD DeleteSelection(nsIEditor::Direction aDir);
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NS_IMETHOD InsertText(const nsString& aStringToInsert);
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NS_IMETHOD InsertBreak();
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// Transaction control
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NS_IMETHOD EnableUndo(PRBool aEnable);
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NS_IMETHOD Undo(PRUint32 aCount);
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NS_IMETHOD CanUndo(PRBool &aIsEnabled, PRBool &aCanUndo);
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NS_IMETHOD Redo(PRUint32 aCount);
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NS_IMETHOD CanRedo(PRBool &aIsEnabled, PRBool &aCanRedo);
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NS_IMETHOD BeginTransaction();
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NS_IMETHOD EndTransaction();
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// Selection and navigation -- exposed here for convenience
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NS_IMETHOD MoveSelectionUp(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD MoveSelectionDown(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD MoveSelectionNext(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD MoveSelectionPrevious(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD SelectNext(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD SelectPrevious(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD SelectAll();
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NS_IMETHOD ScrollUp(nsIAtom *aIncrement);
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NS_IMETHOD ScrollDown(nsIAtom *aIncrement);
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NS_IMETHOD ScrollIntoView(PRBool aScrollToBegin);
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// cut, copy & paste
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NS_IMETHOD Cut();
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NS_IMETHOD Copy();
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NS_IMETHOD Paste();
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// Input/Output
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NS_IMETHOD Insert(nsIInputStream *aInputStream);
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NS_IMETHOD OutputText(nsString& aOutputString);
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NS_IMETHOD OutputHTML(nsString& aOutputString);
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protected:
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// Utility Methods
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virtual void IsTextStyleSet(nsIStyleContext *aSC,
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nsIAtom *aProperty,
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PRBool &aIsSet) const;
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NS_IMETHOD SetTextPropertiesForNode(nsIDOMNode *aNode,
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nsIDOMNode *aParent,
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PRInt32 aStartOffset,
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PRInt32 aEndOffset,
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nsIAtom *aPropName);
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NS_IMETHOD SetTextPropertiesForNodesWithSameParent(nsIDOMNode *aStartNode,
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PRInt32 aStartOffset,
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nsIDOMNode *aEndNode,
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PRInt32 aEndOffset,
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nsIDOMNode *aParent,
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nsIAtom *aPropName);
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NS_IMETHOD SetTextPropertiesForNodeWithDifferentParents(nsIDOMRange *aRange,
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nsIDOMNode *aStartNode,
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PRInt32 aStartOffset,
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nsIDOMNode *aEndNode,
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PRInt32 aEndOffset,
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nsIDOMNode *aParent,
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nsIAtom *aPropName);
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NS_IMETHOD SetTagFromProperty(nsAutoString &aTag, nsIAtom *aPropName) const;
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// Data members
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protected:
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nsTextEditRules* mRules;
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nsCOMPtr<nsIDOMEventListener> mKeyListenerP;
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nsCOMPtr<nsIDOMEventListener> mMouseListenerP;
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nsCOMPtr<nsIDOMEventListener> mTextListenerP;
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nsCOMPtr<nsIDOMEventListener> mDragListenerP;
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};
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#endif //nsTextEditor_h__
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