зеркало из https://github.com/mozilla/pjs.git
576 строки
24 KiB
C++
576 строки
24 KiB
C++
/* -*- 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 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
#ifndef __editor_h__
|
|
#define __editor_h__
|
|
|
|
#include "nsCOMPtr.h"
|
|
#include "nsWeakReference.h"
|
|
|
|
#include "nsIEditor.h"
|
|
#include "nsIEditorIMESupport.h"
|
|
|
|
#include "nsIDOMDocument.h"
|
|
#include "nsIDiskDocument.h"
|
|
#include "nsISelection.h"
|
|
#include "nsIDOMCharacterData.h"
|
|
#include "nsIDOMEventListener.h"
|
|
#include "nsIDOMRange.h"
|
|
#include "nsIPrivateTextRange.h"
|
|
#include "nsITransactionManager.h"
|
|
#include "nsIComponentManager.h"
|
|
#include "nsISupportsArray.h"
|
|
#include "nsIDOMCharacterData.h"
|
|
#include "nsICSSStyleSheet.h"
|
|
#include "nsIDTD.h"
|
|
#include "nsIDOMElement.h"
|
|
#include "nsVoidArray.h"
|
|
#include "nsSelectionState.h"
|
|
|
|
class nsIEditActionListener;
|
|
class nsIDocumentStateListener;
|
|
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 nsILocale;
|
|
class IMETextTxn;
|
|
class AddStyleSheetTxn;
|
|
class RemoveStyleSheetTxn;
|
|
class nsIFile;
|
|
class nsISelectionController;
|
|
|
|
/** implementation of an editor object. it will be the controller/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,
|
|
public nsIEditorIMESupport,
|
|
public nsSupportsWeakReference
|
|
{
|
|
public:
|
|
|
|
enum IterDirection
|
|
{
|
|
kIterForward,
|
|
kIterBackward
|
|
};
|
|
|
|
enum OperationID
|
|
{
|
|
kOpIgnore = -1,
|
|
kOpNone = 0,
|
|
kOpUndo,
|
|
kOpRedo,
|
|
kOpInsertNode,
|
|
kOpCreateNode,
|
|
kOpDeleteNode,
|
|
kOpSplitNode,
|
|
kOpJoinNode,
|
|
kOpDeleteSelection,
|
|
// text commands
|
|
kOpInsertBreak = 1000,
|
|
kOpInsertText = 1001,
|
|
kOpInsertIMEText = 1002,
|
|
kOpDeleteText = 1003
|
|
};
|
|
|
|
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();
|
|
|
|
//Interfaces for addref and release and queryinterface
|
|
//NOTE: Use NS_DECL_ISUPPORTS_INHERITED in any class inherited from nsEditor
|
|
NS_DECL_ISUPPORTS
|
|
|
|
/* ------------ utility methods -------------- */
|
|
NS_IMETHOD GetPresShell(nsIPresShell **aPS);
|
|
void NotifyEditorObservers(void);
|
|
/* ------------ nsIEditor methods -------------- */
|
|
NS_DECL_NSIEDITOR
|
|
/* ------------ nsIEditorIMESupport methods -------------- */
|
|
|
|
NS_IMETHOD BeginComposition(nsTextEventReply* aReply);
|
|
NS_IMETHOD QueryComposition(nsTextEventReply* aReply);
|
|
NS_IMETHOD SetCompositionString(const nsAReadableString& aCompositionString, nsIPrivateTextRangeList* aTextRangeList,nsTextEventReply* aReply);
|
|
NS_IMETHOD EndComposition(void);
|
|
NS_IMETHOD ForceCompositionEnd(void);
|
|
NS_IMETHOD GetReconversionString(nsReconversionEventReply *aReply);
|
|
|
|
public:
|
|
|
|
|
|
NS_IMETHOD InsertTextImpl(const nsAReadableString& aStringToInsert,
|
|
nsCOMPtr<nsIDOMNode> *aInOutNode,
|
|
PRInt32 *aInOutOffset,
|
|
nsIDOMDocument *aDoc);
|
|
NS_IMETHOD InsertTextIntoTextNodeImpl(const nsAReadableString& aStringToInsert,
|
|
nsIDOMCharacterData *aTextNode,
|
|
PRInt32 aOffset);
|
|
NS_IMETHOD DeleteSelectionImpl(EDirection aAction);
|
|
NS_IMETHOD DeleteSelectionAndCreateNode(const nsAReadableString& aTag,
|
|
nsIDOMNode ** aNewNode);
|
|
|
|
/* helper routines for node/parent manipulations */
|
|
nsresult ReplaceContainer(nsIDOMNode *inNode,
|
|
nsCOMPtr<nsIDOMNode> *outNode,
|
|
const nsAReadableString &aNodeType,
|
|
const nsAReadableString *aAttribute = nsnull,
|
|
const nsAReadableString *aValue = nsnull,
|
|
PRBool aCloneAttributes = PR_FALSE);
|
|
|
|
nsresult RemoveContainer(nsIDOMNode *inNode);
|
|
nsresult InsertContainerAbove(nsIDOMNode *inNode,
|
|
nsCOMPtr<nsIDOMNode> *outNode,
|
|
const nsAReadableString &aNodeType,
|
|
const nsAReadableString *aAttribute = nsnull,
|
|
const nsAReadableString *aValue = nsnull);
|
|
nsresult MoveNode(nsIDOMNode *aNode, nsIDOMNode *aParent, PRInt32 aOffset);
|
|
|
|
/* Method to replace certain CreateElementNS() calls.
|
|
Arguments:
|
|
nsString& aTag - tag you want
|
|
nsIContent** aContent - returned Content that was created with above namespace.
|
|
*/
|
|
nsresult CreateHTMLContent(const nsAReadableString& aTag, nsIContent** aContent);
|
|
|
|
protected:
|
|
|
|
/*
|
|
NS_IMETHOD SetProperties(nsVoidArray *aPropList);
|
|
NS_IMETHOD GetProperties(nsVoidArray *aPropList);
|
|
*/
|
|
|
|
/** create a transaction for setting aAttribute to aValue on aElement
|
|
*/
|
|
NS_IMETHOD CreateTxnForSetAttribute(nsIDOMElement *aElement,
|
|
const nsAReadableString & aAttribute,
|
|
const nsAReadableString & aValue,
|
|
ChangeAttributeTxn ** aTxn);
|
|
|
|
/** create a transaction for removing aAttribute on aElement
|
|
*/
|
|
NS_IMETHOD CreateTxnForRemoveAttribute(nsIDOMElement *aElement,
|
|
const nsAReadableString & aAttribute,
|
|
ChangeAttributeTxn ** aTxn);
|
|
|
|
/** create a transaction for creating a new child node of aParent of type aTag.
|
|
*/
|
|
NS_IMETHOD CreateTxnForCreateElement(const nsAReadableString & 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);
|
|
|
|
|
|
NS_IMETHOD CreateTxnForDeleteSelection(EDirection aAction,
|
|
EditAggregateTxn ** aTxn);
|
|
|
|
NS_IMETHOD CreateTxnForDeleteInsertionPoint(nsIDOMRange *aRange,
|
|
EDirection aAction,
|
|
EditAggregateTxn *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 nsAReadableString & aStringToInsert,
|
|
nsIDOMCharacterData *aTextNode,
|
|
PRInt32 aOffset,
|
|
InsertTextTxn ** aTxn);
|
|
|
|
NS_IMETHOD CreateTxnForIMEText(const nsAReadableString & aStringToInsert,
|
|
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);
|
|
|
|
NS_IMETHOD DeleteText(nsIDOMCharacterData *aElement,
|
|
PRUint32 aOffset,
|
|
PRUint32 aLength);
|
|
|
|
// NS_IMETHOD DeleteRange(nsIDOMRange *aRange);
|
|
|
|
NS_IMETHOD CreateTxnForDeleteText(nsIDOMCharacterData *aElement,
|
|
PRUint32 aOffset,
|
|
PRUint32 aLength,
|
|
DeleteTextTxn **aTxn);
|
|
|
|
NS_IMETHOD CreateTxnForSplitNode(nsIDOMNode *aNode,
|
|
PRUint32 aOffset,
|
|
SplitElementTxn **aTxn);
|
|
|
|
NS_IMETHOD CreateTxnForJoinNode(nsIDOMNode *aLeftNode,
|
|
nsIDOMNode *aRightNode,
|
|
JoinElementTxn **aTxn);
|
|
|
|
NS_IMETHOD DeleteSelectionAndPrepareToCreateNode(nsCOMPtr<nsIDOMNode> &parentSelectedNode,
|
|
PRInt32& offsetOfNewNode);
|
|
|
|
// 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();
|
|
// called after a transaction is redone successfully
|
|
NS_IMETHOD DoAfterRedoTransaction();
|
|
|
|
// called after the document has been saved
|
|
NS_IMETHOD DoAfterDocumentSave();
|
|
|
|
|
|
typedef enum {
|
|
eDocumentCreated,
|
|
eDocumentToBeDestroyed,
|
|
eDocumentStateChanged
|
|
} TDocumentListenerNotification;
|
|
|
|
// tell the doc state listeners that the doc state has changed
|
|
NS_IMETHOD NotifyDocumentListeners(TDocumentListenerNotification aNotificationType);
|
|
|
|
/** make the given selection span the entire document */
|
|
NS_IMETHOD SelectEntireDocument(nsISelection *aSelection);
|
|
|
|
/* Helper for output routines -- we expect subclasses to override this */
|
|
NS_IMETHOD GetWrapWidth(PRInt32* aWrapCol);
|
|
|
|
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 ScrollIntoView(PRBool aScrollToBegin);
|
|
|
|
public:
|
|
|
|
/** All editor operations which alter the doc should be prefaced
|
|
* with a call to StartOperation, naming the action and direction */
|
|
NS_IMETHOD StartOperation(PRInt32 opID, nsIEditor::EDirection aDirection);
|
|
|
|
/** All editor operations which alter the doc should be followed
|
|
* with a call to EndOperation */
|
|
NS_IMETHOD EndOperation();
|
|
|
|
/** routines for managing the preservation of selection across
|
|
* various editor actions */
|
|
PRBool ArePreservingSelection();
|
|
nsresult PreserveSelectionAcrossActions(nsISelection *aSel);
|
|
nsresult RestorePreservedSelection(nsISelection *aSel);
|
|
void StopPreservingSelection();
|
|
|
|
|
|
/** return the string that represents text nodes in the content tree */
|
|
static nsresult GetTextNodeTag(nsAWritableString& aOutString);
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
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 aNodeToKeep
|
|
* @param aNodeToKeepIsFirst if PR_TRUE, the contents|children of aNodeToKeep come before the
|
|
* contents|children of aNodeToJoin, otherwise their positions are switched.
|
|
*/
|
|
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);
|
|
|
|
/** 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);
|
|
|
|
// and another version that takes a {parent,offset} pair rather than a node
|
|
nsresult GetPriorNode(nsIDOMNode *aParentNode,
|
|
PRInt32 aOffset,
|
|
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);
|
|
|
|
// and another version that takes a {parent,offset} pair rather than a node
|
|
nsresult GetNextNode(nsIDOMNode *aParentNode,
|
|
PRInt32 aOffset,
|
|
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 nsAReadableString &aTag,
|
|
nsIDOMNode **aResult);
|
|
|
|
/** returns PR_TRUE if aNode is of the type implied by aTag */
|
|
static PRBool NodeIsType(nsIDOMNode *aNode, nsIAtom *aTag);
|
|
static PRBool NodeIsType(nsIDOMNode *aNode, const nsAReadableString &aTag);
|
|
|
|
/** returns PR_TRUE if aParent can contain a child of type aTag */
|
|
PRBool CanContainTag(nsIDOMNode* aParent, const nsAReadableString &aTag);
|
|
PRBool TagCanContain(const nsAReadableString &aParentTag, nsIDOMNode* aChild);
|
|
virtual PRBool TagCanContainTag(const nsAReadableString &aParentTag, const nsAReadableString &aChildTag);
|
|
|
|
/** returns PR_TRUE if aNode is a descendant of our root node */
|
|
PRBool IsDescendantOfBody(nsIDOMNode *inNode);
|
|
|
|
/** returns PR_TRUE if aNode is a container */
|
|
PRBool IsContainer(nsIDOMNode *aNode);
|
|
|
|
/** returns PR_TRUE if aNode is an editable node */
|
|
PRBool IsEditable(nsIDOMNode *aNode);
|
|
|
|
/** returns PR_TRUE if aNode is a MozEditorBogus node */
|
|
PRBool IsMozEditorBogusNode(nsIDOMNode *aNode);
|
|
|
|
/** returns PR_TRUE if content is an merely formatting whitespacce */
|
|
PRBool IsEmptyTextContent(nsIContent* aContent);
|
|
|
|
/** counts number of editable child nodes */
|
|
nsresult CountEditableChildren(nsIDOMNode *aNode, PRUint32 &outCount);
|
|
|
|
/** Find the deep first and last children. Returned nodes are AddReffed */
|
|
nsresult GetFirstEditableNode(nsIDOMNode *aRoot, nsCOMPtr<nsIDOMNode> *outFirstNode);
|
|
nsresult GetLastEditableNode(nsIDOMNode *aRoot, nsCOMPtr<nsIDOMNode> *outLastNode);
|
|
|
|
|
|
/** from html rules code - migration in progress */
|
|
static nsresult GetTagString(nsIDOMNode *aNode, nsAWritableString& outString);
|
|
static nsCOMPtr<nsIAtom> GetTag(nsIDOMNode *aNode);
|
|
static PRBool NodesSameType(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 nsresult GetStartNodeAndOffset(nsISelection *aSelection, nsCOMPtr<nsIDOMNode> *outStartNode, PRInt32 *outStartOffset);
|
|
static nsresult GetEndNodeAndOffset(nsISelection *aSelection, nsCOMPtr<nsIDOMNode> *outEndNode, PRInt32 *outEndOffset);
|
|
|
|
// Helpers to add a node to the selection.
|
|
// Used by table cell selection methods
|
|
nsresult CreateRange(nsIDOMNode *aStartParent, PRInt32 aStartOffset,
|
|
nsIDOMNode *aEndParent, PRInt32 aEndOffset,
|
|
nsIDOMRange **aRange);
|
|
// Gets the node at the StartOffset of StartParent in aRange
|
|
// (this is a table cell in cell selection mode)
|
|
nsresult GetFirstNodeInRange(nsIDOMRange *aRange, nsIDOMNode **aNode);
|
|
// Creates a range with just the supplied node and appends that to the selection
|
|
nsresult AppendNodeToSelectionAsRange(nsIDOMNode *aNode);
|
|
// When you are using AppendNodeToSelectionAsRange, call this first to start a new selection
|
|
nsresult ClearSelection();
|
|
|
|
nsresult IsPreformatted(nsIDOMNode *aNode, PRBool *aResult);
|
|
|
|
nsresult SplitNodeDeep(nsIDOMNode *aNode,
|
|
nsIDOMNode *aSplitPointParent,
|
|
PRInt32 aSplitPointOffset,
|
|
PRInt32 *outOffset,
|
|
PRBool aNoEmptyContainers = PR_FALSE,
|
|
nsCOMPtr<nsIDOMNode> *outLeftNode = 0,
|
|
nsCOMPtr<nsIDOMNode> *outRightNode = 0);
|
|
nsresult JoinNodeDeep(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsCOMPtr<nsIDOMNode> *aOutJoinNode, PRInt32 *outOffset);
|
|
|
|
nsresult GetString(const nsAReadableString& name, nsAWritableString& value);
|
|
|
|
nsresult BeginUpdateViewBatch(void);
|
|
nsresult EndUpdateViewBatch(void);
|
|
|
|
PRBool GetShouldTxnSetSelection();
|
|
|
|
public:
|
|
// Argh! These transaction names are used by PlaceholderTxn and
|
|
// nsPlaintextEditor. They should be localized to those classes.
|
|
static nsIAtom *gTypingTxnName;
|
|
static nsIAtom *gIMETxnName;
|
|
static nsIAtom *gDeleteTxnName;
|
|
|
|
protected:
|
|
|
|
PRUint32 mFlags; // behavior flags. See nsPlaintextEditor.h for the flags we use.
|
|
|
|
nsWeakPtr mPresShellWeak; // weak reference to the nsIPresShell
|
|
nsWeakPtr mSelConWeak; // weak reference to the nsISelectionController
|
|
nsIViewManager *mViewManager;
|
|
PRInt32 mUpdateCount;
|
|
nsCOMPtr<nsITransactionManager> mTxnMgr;
|
|
nsCOMPtr<nsICSSStyleSheet> mLastStyleSheet; // is owning this dangerous?
|
|
nsWeakPtr mPlaceHolderTxn; // weak reference to placeholder for begin/end batch purposes
|
|
nsIAtom *mPlaceHolderName; // name of placeholder transaction
|
|
PRInt32 mPlaceHolderBatch; // nesting count for batching
|
|
nsSelectionState *mSelState; // saved selection state for placeholder txn batching
|
|
nsSelectionState mSavedSel; // cached selection for nsAutoSelectionReset
|
|
nsRangeUpdater mRangeUpdater; // utility class object for maintaining preserved ranges
|
|
PRBool mShouldTxnSetSelection; // turn off for conservative selection adjustment by txns
|
|
nsCOMPtr<nsIDOMElement> mBodyElement; // cached body node
|
|
PRInt32 mAction; // the current editor action
|
|
EDirection mDirection; // the current direction of editor action
|
|
|
|
// data necessary to build IME transactions
|
|
PRBool mInIMEMode; // are we inside an IME composition?
|
|
nsIPrivateTextRangeList* mIMETextRangeList; // IME special selection ranges
|
|
nsCOMPtr<nsIDOMCharacterData> mIMETextNode; // current IME text node
|
|
PRUint32 mIMETextOffset; // offset in text node where IME comp string begins
|
|
PRUint32 mIMEBufferLength; // current length of IME comp string
|
|
|
|
// various listeners
|
|
nsVoidArray* mActionListeners; // listens to all low level actions on the doc
|
|
nsVoidArray* mEditorObservers; // just notify once per high level change
|
|
nsCOMPtr<nsISupportsArray> mDocStateListeners;// listen to overall doc state (dirty or not, just created, etc)
|
|
|
|
PRInt8 mDocDirtyState; // -1 = not initialized
|
|
nsWeakPtr mDocWeak; // weak reference to the nsIDOMDocument
|
|
nsCOMPtr<nsIDTD> mDTD;
|
|
|
|
static PRInt32 gInstanceCount;
|
|
|
|
friend PRBool NSCanUnload(nsISupports* serviceMgr);
|
|
friend class nsAutoTxnsConserveSelection;
|
|
friend class nsAutoSelectionReset;
|
|
friend class nsAutoRules;
|
|
};
|
|
|
|
|
|
#endif
|