зеркало из https://github.com/mozilla/pjs.git
768 строки
32 KiB
C++
768 строки
32 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 "nsIDOMSelection.h"
|
|
#include "nsIDOMCharacterData.h"
|
|
#include "nsIDOMEventListener.h"
|
|
#include "nsIDOMRange.h"
|
|
#include "nsIPrivateTextRange.h"
|
|
#include "nsITransactionManager.h"
|
|
#include "TransactionFactory.h"
|
|
#include "nsIComponentManager.h"
|
|
#include "nsISupportsArray.h"
|
|
#include "nsIEditProperty.h"
|
|
#include "nsIFileSpec.h"
|
|
#include "nsIDOMCharacterData.h"
|
|
#include "nsICSSStyleSheet.h"
|
|
#include "nsIDTD.h"
|
|
#include "nsIDOMElement.h"
|
|
#include "nsVoidArray.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 nsFileSpec;
|
|
class nsISelectionController;
|
|
|
|
|
|
/***************************************************************************
|
|
* class for recording selection info. stores selection as collection of
|
|
* { {startnode, startoffset} , {endnode, endoffset} } tuples. Cant store
|
|
* ranges since dom gravity will possibly change the ranges.
|
|
*/
|
|
|
|
// first a helper struct for saving/setting ranges
|
|
struct SelRangeStore
|
|
{
|
|
nsresult StoreRange(nsIDOMRange *aRange);
|
|
nsresult GetRange(nsCOMPtr<nsIDOMRange> *outRange);
|
|
|
|
nsCOMPtr<nsIDOMNode> startNode;
|
|
PRInt32 startOffset;
|
|
nsCOMPtr<nsIDOMNode> endNode;
|
|
PRInt32 endOffset;
|
|
};
|
|
|
|
class nsSelectionState
|
|
{
|
|
public:
|
|
|
|
nsSelectionState();
|
|
~nsSelectionState();
|
|
|
|
nsresult SaveSelection(nsIDOMSelection *aSel);
|
|
nsresult RestoreSelection(nsIDOMSelection *aSel);
|
|
PRBool IsCollapsed();
|
|
PRBool IsEqual(nsSelectionState *aSelState);
|
|
void MakeEmpty();
|
|
PRBool IsEmpty();
|
|
|
|
// editor selection gravity routines. Note that we can't always depend on
|
|
// DOM Range gravity to do what we want to the "real" selection. For instance,
|
|
// if you move a node, that corresponds to deleting it and reinserting it.
|
|
// DOM Range gravity will promote the selection out of the node on deletion,
|
|
// which is not what you want if you know you are reinserting it.
|
|
nsresult SelAdjCreateNode(nsIDOMNode *aParent, PRInt32 aPosition);
|
|
nsresult SelAdjInsertNode(nsIDOMNode *aParent, PRInt32 aPosition);
|
|
nsresult SelAdjDeleteNode(nsIDOMNode *aNode, nsIDOMNode *aParent, PRInt32 aOffset);
|
|
nsresult SelAdjSplitNode(nsIDOMNode *aOldRightNode, PRInt32 aOffset, nsIDOMNode *aNewLeftNode);
|
|
nsresult SelAdjJoinNodes(nsIDOMNode *aLeftNode,
|
|
nsIDOMNode *aRightNode,
|
|
nsIDOMNode *aParent,
|
|
PRInt32 aOffset,
|
|
PRInt32 aOldLeftNodeLength);
|
|
nsresult SelAdjInsertText(nsIDOMCharacterData *aTextNode, PRInt32 aOffset, const nsString &aString);
|
|
nsresult SelAdjDeleteText(nsIDOMCharacterData *aTextNode, PRInt32 aOffset, PRInt32 aLength);
|
|
// the following gravity routines need will/did sandwiches, because the other gravity
|
|
// routines will be called inside of these sandwiches, but should be ignored.
|
|
nsresult WillReplaceContainer();
|
|
nsresult DidReplaceContainer(nsIDOMNode *aOriginalNode, nsIDOMNode *aNewNode);
|
|
nsresult WillRemoveContainer();
|
|
nsresult DidRemoveContainer(nsIDOMNode *aNode, nsIDOMNode *aParent, PRInt32 aOffset, PRUint32 aNodeOrigLen);
|
|
nsresult WillInsertContainer();
|
|
nsresult DidInsertContainer();
|
|
nsresult WillMoveNode();
|
|
nsresult DidMoveNode(nsIDOMNode *aOldParent, PRInt32 aOldOffset, nsIDOMNode *aNewParent, PRInt32 aNewOffset);
|
|
|
|
nsVoidArray mArray;
|
|
PRBool mLock;
|
|
};
|
|
|
|
/** 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,
|
|
kOpSetTextProperty,
|
|
kOpRemoveTextProperty,
|
|
kOpInsertNode,
|
|
kOpCreateNode,
|
|
kOpDeleteNode,
|
|
kOpSplitNode,
|
|
kOpJoinNode,
|
|
kOpDeleteText,
|
|
kOpInsertText,
|
|
kOpInsertIMEText,
|
|
kOpDeleteSelection
|
|
};
|
|
|
|
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
|
|
|
|
/* ------------ nsIEditor methods -------------- */
|
|
NS_IMETHOD Init(nsIDOMDocument *aDoc, nsIPresShell *aPresShell, nsISelectionController *aSelCon, PRUint32 aFlags);
|
|
NS_IMETHOD PostCreate();
|
|
NS_IMETHOD GetFlags(PRUint32 *aFlags) = 0;
|
|
NS_IMETHOD SetFlags(PRUint32 aFlags) = 0;
|
|
NS_IMETHOD GetDocument(nsIDOMDocument **aDoc);
|
|
NS_IMETHOD GetPresShell(nsIPresShell **aPS);
|
|
NS_IMETHOD GetSelectionController(nsISelectionController **aSel);
|
|
NS_IMETHOD GetSelection(nsIDOMSelection **aSelection);
|
|
|
|
NS_IMETHOD EnableUndo(PRBool aEnable);
|
|
NS_IMETHOD GetTransactionManager(nsITransactionManager* *aTxnManager);
|
|
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 BeginPlaceHolderTransaction(nsIAtom *aName);
|
|
NS_IMETHOD EndPlaceHolderTransaction();
|
|
NS_IMETHOD ShouldTxnSetSelection(PRBool *aResult);
|
|
|
|
// pure virtual, because the definition of 'empty' depends on the doc type
|
|
NS_IMETHOD GetDocumentIsEmpty(PRBool *aDocumentIsEmpty)=0;
|
|
|
|
// file handling
|
|
NS_IMETHOD GetDocumentModified(PRBool *outDocModified);
|
|
NS_IMETHOD GetDocumentCharacterSet(PRUnichar** characterSet);
|
|
NS_IMETHOD SetDocumentCharacterSet(const PRUnichar* characterSet);
|
|
NS_IMETHOD SaveFile(nsFileSpec *aFileSpec, PRBool aReplaceExisting, PRBool aSaveCopy, const nsString& aFormat);
|
|
|
|
// these are pure virtual in this base class
|
|
NS_IMETHOD Cut() = 0;
|
|
NS_IMETHOD CanCut(PRBool &aCanCut)=0;
|
|
NS_IMETHOD Copy() = 0;
|
|
NS_IMETHOD CanCopy(PRBool &aCanCopy)=0;
|
|
NS_IMETHOD Paste(PRInt32 aSelectionType) = 0;
|
|
NS_IMETHOD CanPaste(PRInt32 aSelectionType, PRBool &aCanPaste)=0;
|
|
|
|
NS_IMETHOD SelectAll();
|
|
|
|
NS_IMETHOD BeginningOfDocument();
|
|
NS_IMETHOD EndOfDocument();
|
|
|
|
|
|
/* Node and element manipulation */
|
|
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);
|
|
|
|
NS_IMETHOD CreateNode(const nsString& aTag,
|
|
nsIDOMNode * aParent,
|
|
PRInt32 aPosition,
|
|
nsIDOMNode ** aNewNode);
|
|
|
|
NS_IMETHOD InsertNode(nsIDOMNode * aNode,
|
|
nsIDOMNode * aParent,
|
|
PRInt32 aPosition);
|
|
|
|
NS_IMETHOD SplitNode(nsIDOMNode * aExistingRightNode,
|
|
PRInt32 aOffset,
|
|
nsIDOMNode ** aNewLeftNode);
|
|
|
|
NS_IMETHOD JoinNodes(nsIDOMNode * aLeftNode,
|
|
nsIDOMNode * aRightNode,
|
|
nsIDOMNode * aParent);
|
|
|
|
NS_IMETHOD DeleteNode(nsIDOMNode * aChild);
|
|
|
|
NS_IMETHOD MarkNodeDirty(nsIDOMNode* aNode);
|
|
|
|
|
|
/* output */
|
|
NS_IMETHOD OutputToString(nsString& aOutputString,
|
|
const nsString& aFormatType,
|
|
PRUint32 aFlags);
|
|
|
|
NS_IMETHOD OutputToStream(nsIOutputStream* aOutputStream,
|
|
const nsString& aFormatType,
|
|
const nsString* aCharsetOverride,
|
|
PRUint32 aFlags);
|
|
|
|
/* Listeners */
|
|
NS_IMETHOD AddEditActionListener(nsIEditActionListener *aListener);
|
|
NS_IMETHOD RemoveEditActionListener(nsIEditActionListener *aListener);
|
|
|
|
NS_IMETHOD AddDocumentStateListener(nsIDocumentStateListener *aListener);
|
|
NS_IMETHOD RemoveDocumentStateListener(nsIDocumentStateListener *aListener);
|
|
|
|
|
|
NS_IMETHOD DumpContentTree();
|
|
NS_IMETHOD DebugDumpContent() const;
|
|
NS_IMETHOD DebugUnitTests(PRInt32 *outNumTests, PRInt32 *outNumTestsFailed);
|
|
|
|
/* ------------ nsIEditorIMESupport methods -------------- */
|
|
|
|
NS_IMETHOD BeginComposition(nsTextEventReply* aReply);
|
|
NS_IMETHOD QueryComposition(nsTextEventReply* aReply);
|
|
NS_IMETHOD SetCompositionString(const nsString& aCompositionString, nsIPrivateTextRangeList* aTextRangeList,nsTextEventReply* aReply);
|
|
NS_IMETHOD EndComposition(void);
|
|
NS_IMETHOD ForceCompositionEnd(void);
|
|
|
|
public:
|
|
|
|
|
|
NS_IMETHOD InsertTextImpl(const nsString& aStringToInsert,
|
|
nsCOMPtr<nsIDOMNode> *aInOutNode,
|
|
PRInt32 *aInOutOffset,
|
|
nsIDOMDocument *aDoc);
|
|
NS_IMETHOD InsertTextIntoTextNodeImpl(const nsString& aStringToInsert,
|
|
nsIDOMCharacterData *aTextNode,
|
|
PRInt32 aOffset);
|
|
NS_IMETHOD DeleteSelectionImpl(EDirection aAction);
|
|
|
|
/* helper routines for node/parent manipulations */
|
|
nsresult ReplaceContainer(nsIDOMNode *inNode,
|
|
nsCOMPtr<nsIDOMNode> *outNode,
|
|
const nsString &aNodeType,
|
|
const nsString *aAttribute = nsnull,
|
|
const nsString *aValue = nsnull);
|
|
nsresult RemoveContainer(nsIDOMNode *inNode);
|
|
nsresult InsertContainerAbove(nsIDOMNode *inNode,
|
|
nsCOMPtr<nsIDOMNode> *outNode,
|
|
const nsString &aNodeType,
|
|
const nsString *aAttribute = nsnull,
|
|
const nsString *aValue = nsnull);
|
|
nsresult MoveNode(nsIDOMNode *aNode, nsIDOMNode *aParent, PRInt32 aOffset);
|
|
|
|
protected:
|
|
|
|
|
|
|
|
//NOTE: Most callers are dealing with Nodes,
|
|
// but these objects must supports nsIDOMElement
|
|
NS_IMETHOD CloneAttributes(nsIDOMNode *aDestNode, nsIDOMNode *aSourceNode);
|
|
/*
|
|
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 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);
|
|
|
|
|
|
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 nsString & aStringToInsert,
|
|
nsIDOMCharacterData *aTextNode,
|
|
PRInt32 aOffset,
|
|
InsertTextTxn ** aTxn);
|
|
|
|
NS_IMETHOD CreateTxnForIMEText(const nsString & 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 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);
|
|
|
|
|
|
// 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(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 ScrollIntoView(PRBool aScrollToBegin);
|
|
|
|
public:
|
|
|
|
/** return the body element */
|
|
/** It would make more sense for this to be in nsHTMLEditor, no? */
|
|
NS_IMETHOD GetBodyElement(nsIDOMElement **aElement);
|
|
|
|
/** 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, naming the action and direction */
|
|
NS_IMETHOD EndOperation(PRInt32 opID, nsIEditor::EDirection aDirection);
|
|
|
|
/** return the string that represents text nodes in the content tree */
|
|
static nsresult GetTextNodeTag(nsString& 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);
|
|
|
|
/** 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 block as defined by HTML DTD */
|
|
static nsresult IsNodeBlock(nsIDOMNode *aNode, PRBool &aIsBlock);
|
|
|
|
/** This version is for exposure to JavaScript */
|
|
NS_IMETHOD NodeIsBlock(nsIDOMNode *aNode, PRBool &aIsBlock);
|
|
|
|
/** 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 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 aParent can contain a child of type aTag */
|
|
PRBool CanContainTag(nsIDOMNode* aParent, const nsString &aTag);
|
|
PRBool TagCanContain(const nsString &aParentTag, nsIDOMNode* aChild);
|
|
PRBool TagCanContainTag(const nsString &aParentTag, const nsString &aChildTag);
|
|
|
|
/** 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, 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);
|
|
/** 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);
|
|
|
|
|
|
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);
|
|
|
|
// 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 IsNextCharWhitespace(nsIDOMNode *aParentNode,
|
|
PRInt32 aOffset,
|
|
PRBool *outIsSpace,
|
|
PRBool *outIsNBSP,
|
|
nsCOMPtr<nsIDOMNode> *outNode = 0,
|
|
PRInt32 *outOffset = 0);
|
|
nsresult IsPrevCharWhitespace(nsIDOMNode *aParentNode,
|
|
PRInt32 aOffset,
|
|
PRBool *outIsSpace,
|
|
PRBool *outIsNBSP,
|
|
nsCOMPtr<nsIDOMNode> *outNode = 0,
|
|
PRInt32 *outOffset = 0);
|
|
|
|
nsresult SplitNodeDeep(nsIDOMNode *aNode,
|
|
nsIDOMNode *aSplitPointParent,
|
|
PRInt32 aSplitPointOffset,
|
|
PRInt32 *outOffset,
|
|
nsCOMPtr<nsIDOMNode> *outLeftNode = 0,
|
|
nsCOMPtr<nsIDOMNode> *outRightNode = 0);
|
|
nsresult JoinNodeDeep(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsCOMPtr<nsIDOMNode> *aOutJoinNode, PRInt32 *outOffset);
|
|
|
|
nsresult GetString(const nsString& name, nsString& value);
|
|
|
|
nsresult BeginUpdateViewBatch(void);
|
|
nsresult EndUpdateViewBatch(void);
|
|
|
|
PRBool GetShouldTxnSetSelection();
|
|
void SetShouldTxnSetSelection(PRBool aShould);
|
|
|
|
protected:
|
|
|
|
PRUint32 mFlags; // behavior flags. See nsIHTMLEditor.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<nsIEditProperty> mEditProperty;
|
|
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
|
|
PRBool mShouldTxnSetSelection; // turn off for conservative selection adjustment by txns
|
|
nsCOMPtr<nsIDOMElement> mBodyElement; // cached body node
|
|
//
|
|
// 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
|
|
|
|
nsVoidArray* mActionListeners;
|
|
nsCOMPtr<nsISupportsArray> mDocStateListeners;
|
|
|
|
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;
|
|
};
|
|
|
|
|
|
#endif
|