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gecko-dev/editor/base/nsEditor.h
waterson%netscape.com 2036cc44fb Fix nsCOMPtr bustage.
1999-07-02 05:20:31 +00:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://wwwt.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef __editor_h__
#define __editor_h__
#include "prmon.h"
#include "nsIEditor.h"
#include "nsIContextLoader.h"
#include "nsIDOMDocument.h"
#include "nsIDOMSelection.h"
#include "nsIDOMCharacterData.h"
#include "nsIDOMEventListener.h"
#include "nsIDOMRange.h"
#include "nsIDOMTextRangeList.h"
#include "nsCOMPtr.h"
#include "nsIStringBundle.h"
#include "nsITransactionManager.h"
#include "TransactionFactory.h"
#include "nsIComponentManager.h"
#include "nsIEditProperty.h"
#include "nsIFileSpec.h"
#include "nsIDOMCharacterData.h"
#include "nsICSSStyleSheet.h"
class nsIEditActionListener;
class nsIDOMCharacterData;
class nsIDOMRange;
class nsIPresShell;
class nsIViewManager;
class ChangeAttributeTxn;
class CreateElementTxn;
class InsertElementTxn;
class DeleteElementTxn;
class InsertTextTxn;
class DeleteTextTxn;
class SplitElementTxn;
class JoinElementTxn;
class EditAggregateTxn;
class nsVoidArray;
class nsISupportsArray;
class nsIPref;
class nsIStringBundleService;
class nsIStringBundle;
class nsILocale;
class IMETextTxn;
class AddStyleSheetTxn;
class RemoveStyleSheetTxn;
#ifdef ENABLE_JS_EDITOR_LOG
class nsJSEditorLog;
class nsJSTxnLog;
#endif // ENABLE_JS_EDITOR_LOG
//This is the monitor for the editor.
PRMonitor *GetEditorMonitor();
/** implementation of an editor object. it will be the controler/focal point
* for the main editor services. i.e. the GUIManager, publishing, transaction
* manager, event interfaces. the idea for the event interfaces is to have them
* delegate the actual commands to the editor independent of the XPFE implementation.
*/
class nsEditor : public nsIEditor
{
private:
nsIPresShell *mPresShell;
nsIViewManager *mViewManager;
PRUint32 mUpdateCount;
nsCOMPtr<nsITransactionManager> mTxnMgr;
nsCOMPtr<nsIEditProperty> mEditProperty;
nsCOMPtr<nsICSSStyleSheet> mLastStyleSheet; // is owning this dangerous?
//
// data necessary to build IME transactions
//
nsCOMPtr<nsIDOMCharacterData> mIMETextNode;
PRUint32 mIMETextOffset;
PRUint32 mIMEBufferLength;
friend PRBool NSCanUnload(nsISupports* serviceMgr);
static PRInt32 gInstanceCount;
nsVoidArray *mActionListeners;
nsCOMPtr<nsIStringBundle> mStringBundle;
protected:
nsIDOMDocument * mDoc;
// Services are not nsCOMPtr friendly
nsIPref* mPrefs;
#ifdef ENABLE_JS_EDITOR_LOG
nsJSEditorLog *mJSEditorLog;
nsJSTxnLog *mJSTxnLog;
#endif // ENABLE_JS_EDITOR_LOG
public:
enum IterDirection
{
kIterForward,
kIterBackward
};
static const char* kMOZEditorBogusNodeAttr;
static const char* kMOZEditorBogusNodeValue;
/** The default constructor. This should suffice. the setting of the interfaces is done
* after the construction of the editor class.
*/
nsEditor();
/** The default destructor. This should suffice. Should this be pure virtual
* for someone to derive from the nsEditor later? I dont believe so.
*/
virtual ~nsEditor();
/*BEGIN nsIEditor for more details*/
//Interfaces for addref and release and queryinterface
//NOTE: Use NS_DECL_ISUPPORTS_INHERITED in any class inherited from nsEditor
NS_DECL_ISUPPORTS
NS_IMETHOD Init(nsIDOMDocument *aDoc, nsIPresShell *aPresShell);
NS_IMETHOD GetDocument(nsIDOMDocument **aDoc);
NS_IMETHOD GetBodyElement(nsIDOMElement **aElement);
NS_IMETHOD GetPresShell(nsIPresShell **aPS);
NS_IMETHOD GetSelection(nsIDOMSelection **aSelection);
NS_IMETHOD SetProperties(nsVoidArray *aPropList);
NS_IMETHOD GetProperties(nsVoidArray *aPropList);
NS_IMETHOD SetAttribute(nsIDOMElement * aElement,
const nsString& aAttribute,
const nsString& aValue);
NS_IMETHOD GetAttributeValue(nsIDOMElement * aElement,
const nsString& aAttribute,
nsString& aResultValue,
PRBool& aResultIsSet);
NS_IMETHOD RemoveAttribute(nsIDOMElement *aElement, const nsString& aAttribute);
//NOTE: Most callers are dealing with Nodes,
// but these objects must supports nsIDOMElement
NS_IMETHOD CopyAttributes(nsIDOMNode *aDestNode, nsIDOMNode *aSourceNode);
NS_IMETHOD CreateNode(const nsString& aTag,
nsIDOMNode * aParent,
PRInt32 aPosition,
nsIDOMNode ** aNewNode);
NS_IMETHOD InsertNode(nsIDOMNode * aNode,
nsIDOMNode * aParent,
PRInt32 aPosition);
NS_IMETHOD InsertText(const nsString& aStringToInsert);
NS_IMETHOD BeginComposition(void);
NS_IMETHOD SetCompositionString(const nsString& aCompositionString, nsIDOMTextRangeList* aTextRangeList);
NS_IMETHOD EndComposition(void);
NS_IMETHOD DeleteNode(nsIDOMNode * aChild);
NS_IMETHOD DeleteSelection(nsIEditor::ECollapsedSelectionAction aAction);
NS_IMETHOD DeleteSelectionAndCreateNode(const nsString& aTag, nsIDOMNode ** aNewNode);
NS_IMETHOD SplitNode(nsIDOMNode * aExistingRightNode,
PRInt32 aOffset,
nsIDOMNode ** aNewLeftNode);
NS_IMETHOD JoinNodes(nsIDOMNode * aLeftNode,
nsIDOMNode * aRightNode,
nsIDOMNode * aParent);
NS_IMETHOD InsertBreak();
NS_IMETHOD EnableUndo(PRBool aEnable);
NS_IMETHOD Do(nsITransaction *aTxn);
NS_IMETHOD Undo(PRUint32 aCount);
NS_IMETHOD CanUndo(PRBool &aIsEnabled, PRBool &aCanUndo);
NS_IMETHOD Redo(PRUint32 aCount);
NS_IMETHOD CanRedo(PRBool &aIsEnabled, PRBool &aCanRedo);
NS_IMETHOD BeginTransaction();
NS_IMETHOD EndTransaction();
NS_IMETHOD GetLayoutObject(nsIDOMNode *aNode, nsISupports **aLayoutObject);
NS_IMETHOD ScrollIntoView(PRBool aScrollToBegin);
NS_IMETHOD SelectAll();
NS_IMETHOD BeginningOfDocument();
NS_IMETHOD EndOfDocument();
NS_IMETHOD Cut();
NS_IMETHOD Copy();
NS_IMETHOD Paste();
NS_IMETHOD PasteAsQuotation();
NS_IMETHOD InsertAsQuotation(const nsString& aQuotedText);
NS_IMETHOD ApplyStyleSheet(const nsString& aURL);
NS_IMETHOD AddStyleSheet(nsICSSStyleSheet* aSheet);
NS_IMETHOD RemoveStyleSheet(nsICSSStyleSheet* aSheet);
NS_IMETHOD AddEditActionListener(nsIEditActionListener *aListener);
NS_IMETHOD RemoveEditActionListener(nsIEditActionListener *aListener);
NS_IMETHOD DebugUnitTests(PRInt32 *outNumTests, PRInt32 *outNumTestsFailed);
NS_IMETHOD StartLogging(nsIFileSpec *aLogFile);
NS_IMETHOD StopLogging();
/*END nsIEditor interfaces*/
/* StyleSheet load callback */
static void ApplyStyleSheetToPresShellDocument(nsICSSStyleSheet* aSheet, void *aData);
/*BEGIN private methods used by the implementations of the above functions*/
protected:
/** create a transaction for setting aAttribute to aValue on aElement
*/
NS_IMETHOD CreateTxnForSetAttribute(nsIDOMElement *aElement,
const nsString& aAttribute,
const nsString& aValue,
ChangeAttributeTxn ** aTxn);
/** create a transaction for removing aAttribute on aElement
*/
NS_IMETHOD CreateTxnForRemoveAttribute(nsIDOMElement *aElement,
const nsString& aAttribute,
ChangeAttributeTxn ** aTxn);
/** create a transaction for creating a new child node of aParent of type aTag.
*/
NS_IMETHOD CreateTxnForCreateElement(const nsString& aTag,
nsIDOMNode *aParent,
PRInt32 aPosition,
CreateElementTxn ** aTxn);
/** create a transaction for inserting aNode as a child of aParent.
*/
NS_IMETHOD CreateTxnForInsertElement(nsIDOMNode * aNode,
nsIDOMNode * aParent,
PRInt32 aOffset,
InsertElementTxn ** aTxn);
/** create a transaction for removing aElement from its parent.
*/
NS_IMETHOD CreateTxnForDeleteElement(nsIDOMNode * aElement,
DeleteElementTxn ** aTxn);
/** create a transaction for inserting aStringToInsert into aTextNode
* if aTextNode is null, the string is inserted at the current selection.
*/
NS_IMETHOD CreateTxnForInsertText(const nsString & aStringToInsert,
nsIDOMCharacterData *aTextNode,
InsertTextTxn ** aTxn);
NS_IMETHOD CreateTxnForIMEText(const nsString & aStringToInsert,
nsIDOMTextRangeList* aTextRangeList,
IMETextTxn ** aTxn);
/** create a transaction for adding a style sheet
*/
NS_IMETHOD CreateTxnForAddStyleSheet(nsICSSStyleSheet* aSheet, AddStyleSheetTxn* *aTxn);
/** create a transaction for removing a style sheet
*/
NS_IMETHOD CreateTxnForRemoveStyleSheet(nsICSSStyleSheet* aSheet, RemoveStyleSheetTxn* *aTxn);
/* remove the old style sheet, and apply the supplied one */
NS_IMETHOD ReplaceStyleSheet(nsICSSStyleSheet *aNewSheet);
/** insert aStringToInsert as the first text in the document
*/
NS_IMETHOD DoInitialInsert(const nsString & aStringToInsert);
NS_IMETHOD DoInitialInputMethodInsert(const nsString& aStringToInsert,nsIDOMTextRangeList* aTextRangeList);
NS_IMETHOD DeleteText(nsIDOMCharacterData *aElement,
PRUint32 aOffset,
PRUint32 aLength);
NS_IMETHOD CreateTxnForDeleteText(nsIDOMCharacterData *aElement,
PRUint32 aOffset,
PRUint32 aLength,
DeleteTextTxn **aTxn);
NS_IMETHOD CreateTxnForDeleteSelection(nsIEditor::ECollapsedSelectionAction aAction,
EditAggregateTxn ** aTxn);
NS_IMETHOD CreateTxnForDeleteInsertionPoint(nsIDOMRange *aRange,
nsIEditor::ECollapsedSelectionAction aAction,
EditAggregateTxn *aTxn);
NS_IMETHOD CreateTxnForSplitNode(nsIDOMNode *aNode,
PRUint32 aOffset,
SplitElementTxn **aTxn);
NS_IMETHOD CreateTxnForJoinNode(nsIDOMNode *aLeftNode,
nsIDOMNode *aRightNode,
JoinElementTxn **aTxn);
/** Create an aggregate transaction for deleting current selection
* Used by all methods that need to delete current selection,
* then insert something new to replace it
* @param nsString& aTxnName is the name of the aggregated transaction
* @param EditTxn **aAggTxn is the return location of the aggregate TXN,
* with the DeleteSelectionTxn as the first child ONLY
* if there was a selection to delete.
*/
NS_IMETHOD CreateAggregateTxnForDeleteSelection(nsIAtom *aTxnName, EditAggregateTxn **aAggTxn);
NS_IMETHOD DebugDumpContent() const;
NS_IMETHOD SetInputMethodText(const nsString& aStringToInsert, nsIDOMTextRangeList* aTextRangeList);
// called each time we modify the document. Increments the mod
// count of the doc.
NS_IMETHOD IncDocModCount(PRInt32 inNumMods);
// return the mod count of the doc we are editing. Zero means unchanged.
NS_IMETHOD GetDocModCount(PRInt32 &outModCount);
// called ONLY when we need to override the doc's modification
// state. This should already be handled by nsIDiskDocument.
NS_IMETHOD ResetDocModCount();
// called after a transaction is done successfully
NS_IMETHOD DoAfterDoTransaction(nsITransaction *aTxn);
// called after a transaction is undone successfully
NS_IMETHOD DoAfterUndoTransaction();
/** make the given selection span the entire document */
NS_IMETHOD SelectEntireDocument(nsIDOMSelection *aSelection);
protected:
// XXXX: Horrible hack! We are doing this because
// of an error in Gecko which is not rendering the
// document after a change via the DOM - gpk 2/13/99
void HACKForceRedraw(void);
NS_IMETHOD DeleteSelectionAndPrepareToCreateNode(nsCOMPtr<nsIDOMNode> &parentSelectedNode, PRInt32& offsetOfNewNode);
public:
/**
* SplitNode() creates a new node identical to an existing node, and split the contents between the two nodes
* @param aExistingRightNode the node to split. It will become the new node's next sibling.
* @param aOffset the offset of aExistingRightNode's content|children to do the split at
* @param aNewLeftNode [OUT] the new node resulting from the split, becomes aExistingRightNode's previous sibling.
* @param aParent the parent of aExistingRightNode
*/
static nsresult SplitNodeImpl(nsIDOMNode *aExistingRightNode,
PRInt32 aOffset,
nsIDOMNode *aNewLeftNode,
nsIDOMNode *aParent);
/**
* JoinNodes() takes 2 nodes and merge their content|children.
* @param aNodeToKeep The node that will remain after the join.
* @param aNodeToJoin The node that will be joined with aNodeToKeep.
* There is no requirement that the two nodes be of the same type.
* @param aParent The parent of aExistingRightNode
* @param aNodeToKeepIsFirst if PR_TRUE, the contents|children of aNodeToKeep come before the
* contents|children of aNodeToJoin, otherwise their positions are switched.
*/
static nsresult JoinNodesImpl(nsIDOMNode *aNodeToKeep,
nsIDOMNode *aNodeToJoin,
nsIDOMNode *aParent,
PRBool aNodeToKeepIsFirst);
/**
* Set aOffset to the offset of aChild in aParent.
* Returns an error if aChild is not an immediate child of aParent.
*/
static nsresult GetChildOffset(nsIDOMNode *aChild,
nsIDOMNode *aParent,
PRInt32 &aOffset);
/**
* Set aParent to the parent of aChild.
* Set aOffset to the offset of aChild in aParent.
*/
static nsresult GetNodeLocation(nsIDOMNode *aChild,
nsCOMPtr<nsIDOMNode> *aParent,
PRInt32 *aOffset);
/** set aIsInline to PR_TRUE if aNode is inline as defined by HTML DTD */
static nsresult IsNodeInline(nsIDOMNode *aNode, PRBool &aIsInline);
/** set aIsBlock to PR_TRUE if aNode is inline as defined by HTML DTD */
static nsresult IsNodeBlock(nsIDOMNode *aNode, PRBool &aIsBlock);
/** returns the closest block parent of aNode, not including aNode itself.
* can return null, for example if aNode is in a document fragment.
* @param aNode The node whose parent we seek.
* @param aBlockParent [OUT] The block parent, if any.
* @return a success value unless an unexpected error occurs.
*/
static nsresult GetBlockParent(nsIDOMNode *aNode,
nsIDOMElement **aBlockParent);
/** Determines the bounding nodes for the block section containing aNode.
* The calculation is based on some nodes intrinsically being block elements
* acording to HTML. Style sheets are not considered in this calculation.
* <BR> tags separate block content sections. So the HTML markup:
* <PRE>
* <P>text1<BR>text2<B>text3</B></P>
* </PRE>
* contains two block content sections. The first has the text node "text1"
* for both endpoints. The second has "text2" as the left endpoint and
* "text3" as the right endpoint.
* Notice that offsets aren't required, only leaf nodes. Offsets are implicit.
*
* @param aNode the block content returned includes aNode
* @param aLeftNode [OUT] the left endpoint of the block content containing aNode
* @param aRightNode [OUT] the right endpoint of the block content containing aNode
*
*/
static nsresult GetBlockSection(nsIDOMNode *aNode,
nsIDOMNode **aLeftNode,
nsIDOMNode **aRightNode);
/** Compute the set of block sections in a given range.
* A block section is the set of (leftNode, rightNode) pairs given
* by GetBlockSection. The set is computed by computing the
* block section for every leaf node in the range and throwing
* out duplicates.
*
* @param aRange The range to compute block sections for.
* @param aSections Allocated storage for the resulting set, stored as nsIDOMRanges.
*/
static nsresult GetBlockSectionsForRange(nsIDOMRange *aRange,
nsISupportsArray *aSections);
/** returns PR_TRUE in out-param aResult if all nodes between (aStartNode, aStartOffset)
* and (aEndNode, aEndOffset) are inline as defined by HTML DTD.
*/
static nsresult IntermediateNodesAreInline(nsIDOMRange *aRange,
nsIDOMNode *aStartNode,
PRInt32 aStartOffset,
nsIDOMNode *aEndNode,
PRInt32 aEndOffset,
PRBool &aResult);
/** returns the number of things inside aNode in the out-param aCount.
* @param aNode is the node to get the length of.
* If aNode is text, returns number of characters.
* If not, returns number of children nodes.
* @param aCount [OUT] the result of the above calculation.
*/
static nsresult GetLengthOfDOMNode(nsIDOMNode *aNode, PRUint32 &aCount);
/** get the node immediately prior to aCurrentNode
* @param aCurrentNode the node from which we start the search
* @param aEditableNode if PR_TRUE, only return an editable node
* @param aResultNode [OUT] the node that occurs before aCurrentNode in the tree,
* skipping non-editable nodes if aEditableNode is PR_TRUE.
* If there is no prior node, aResultNode will be nsnull.
*/
nsresult GetPriorNode(nsIDOMNode *aCurrentNode,
PRBool aEditableNode,
nsIDOMNode **aResultNode);
/** get the node immediately after to aCurrentNode
* @param aCurrentNode the node from which we start the search
* @param aEditableNode if PR_TRUE, only return an editable node
* @param aResultNode [OUT] the node that occurs after aCurrentNode in the tree,
* skipping non-editable nodes if aEditableNode is PR_TRUE.
* If there is no prior node, aResultNode will be nsnull.
*/
nsresult GetNextNode(nsIDOMNode *aCurrentNode,
PRBool aEditableNode,
nsIDOMNode **aResultNode);
/** Get the rightmost child of aCurrentNode, and return it in aResultNode
* aResultNode is set to nsnull if aCurrentNode has no children.
*/
static nsresult GetRightmostChild(nsIDOMNode *aCurrentNode, nsIDOMNode **aResultNode);
/** Get the leftmost child of aCurrentNode, and return it in aResultNode
* aResultNode is set to nsnull if aCurrentNode has no children.
*/
static nsresult GetLeftmostChild(nsIDOMNode *aCurrentNode, nsIDOMNode **aResultNode);
/** GetFirstTextNode ADDREFFS and will get the next available text node from the passed
* in node parameter it can also return NS_ERROR_FAILURE if no text nodes are available
* now it simply returns the first node in the dom
* @param nsIDOMNode *aNode is the node to start looking from
* @param nsIDOMNode **aRetNode is the return location of the text dom node
*
* NOTE: this method will probably be removed.
*/
static nsresult GetFirstTextNode(nsIDOMNode *aNode, nsIDOMNode **aRetNode);
/** GetFirstNodeOfType ADDREFFS and will get the next available node from the passed
* in aStartNode parameter of type aTag.
* It can also return NS_ERROR_FAILURE if no such nodes are available
* @param aStartNode is the node to start looking from
* @param aTag is the type of node we are searching for
* @param aResult is the node we found, or nsnull if there is none
*/
static nsresult GetFirstNodeOfType(nsIDOMNode *aStartNode,
const nsString &aTag,
nsIDOMNode **aResult);
/** returns PR_TRUE if aNode is of the type implied by aTag */
static PRBool NodeIsType(nsIDOMNode *aNode, nsIAtom *aTag);
/** returns PR_TRUE if aNode is an editable node */
PRBool IsEditable(nsIDOMNode *aNode);
/** counts number of editable child nodes */
nsresult CountEditableChildren(nsIDOMNode *aNode, PRUint32 &outCount);
/** Find the deep first and last children */
nsCOMPtr<nsIDOMNode> GetDeepFirstChild(nsCOMPtr<nsIDOMNode> aRoot);
nsCOMPtr<nsIDOMNode> GetDeepLastChild(nsCOMPtr<nsIDOMNode> aRoot);
/** from html rules code - migration in progress */
static nsresult GetTagString(nsIDOMNode *aNode, nsString& outString);
static nsCOMPtr<nsIAtom> GetTag(nsIDOMNode *aNode);
static PRBool NodesSameType(nsIDOMNode *aNode1, nsIDOMNode *aNode2);
static PRBool IsBlockNode(nsIDOMNode *aNode);
static PRBool IsInlineNode(nsIDOMNode *aNode);
static nsCOMPtr<nsIDOMNode> GetBlockNodeParent(nsIDOMNode *aNode);
static PRBool HasSameBlockNodeParent(nsIDOMNode *aNode1, nsIDOMNode *aNode2);
static PRBool IsTextOrElementNode(nsIDOMNode *aNode);
static PRBool IsTextNode(nsIDOMNode *aNode);
static PRInt32 GetIndexOf(nsIDOMNode *aParent, nsIDOMNode *aChild);
static nsCOMPtr<nsIDOMNode> GetChildAt(nsIDOMNode *aParent, PRInt32 aOffset);
static nsCOMPtr<nsIDOMNode> NextNodeInBlock(nsIDOMNode *aNode, IterDirection aDir);
static nsresult GetStartNodeAndOffset(nsIDOMSelection *aSelection, nsCOMPtr<nsIDOMNode> *outStartNode, PRInt32 *outStartOffset);
static nsresult GetEndNodeAndOffset(nsIDOMSelection *aSelection, nsCOMPtr<nsIDOMNode> *outEndNode, PRInt32 *outEndOffset);
nsresult IsPreformatted(nsIDOMNode *aNode, PRBool *aResult);
nsresult IsNextCharWhitespace(nsIDOMNode *aParentNode, PRInt32 aOffset, PRBool *aResult);
nsresult IsPrevCharWhitespace(nsIDOMNode *aParentNode, PRInt32 aOffset, PRBool *aResult);
nsresult SplitNodeDeep(nsIDOMNode *aNode, nsIDOMNode *aSplitPointParent, PRInt32 aSplitPointOffset);
nsresult JoinNodeDeep(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsIDOMSelection *aSelection);
nsresult GetString(const nsString& name, nsString& value);
nsresult BeginUpdateViewBatch(void);
nsresult EndUpdateViewBatch(void);
};
class nsAutoEditBatch
{
private:
nsCOMPtr<nsIEditor> mEd;
public:
nsAutoEditBatch( nsIEditor *aEd) : mEd(do_QueryInterface(aEd))
{ if (mEd) mEd->BeginTransaction(); }
~nsAutoEditBatch() { if (mEd) mEd->EndTransaction(); }
};
class nsAutoSelectionReset
{
private:
/** ref-counted reference to the selection that we are supposed to restore */
nsCOMPtr<nsIDOMSelection> mSel;
/** PR_TRUE if this instance initialized itself correctly */
PRBool mInitialized;
nsCOMPtr<nsIDOMNode> mStartNode;
nsCOMPtr<nsIDOMNode> mEndNode;
PRInt32 mStartOffset;
PRInt32 mEndOffset;
public:
/** constructor responsible for remembering all state needed to restore aSel */
nsAutoSelectionReset(nsIDOMSelection *aSel);
/** destructor restores mSel to its former state */
~nsAutoSelectionReset();
};
/*
factory method(s)
*/
nsresult NS_MakeEditorLoader(nsIContextLoader **aResult);
#endif
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