зеркало из https://github.com/mozilla/pjs.git
634 строки
26 KiB
C++
634 строки
26 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 1.0 (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 "nsCOMPtr.h"
|
|
#include "nsWeakPtr.h"
|
|
#include "prmon.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"
|
|
|
|
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;
|
|
|
|
//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,
|
|
public nsIEditorIMESupport
|
|
{
|
|
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();
|
|
|
|
//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, 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 GetSelection(nsIDOMSelection **aSelection);
|
|
|
|
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();
|
|
|
|
// 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, nsIDiskDocument::ESaveFileType aSaveFileType);
|
|
|
|
// these are pure virtual in this base class
|
|
NS_IMETHOD Cut() = 0;
|
|
NS_IMETHOD Copy() = 0;
|
|
NS_IMETHOD Paste() = 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);
|
|
|
|
/* formatting within the dom tree */
|
|
NS_IMETHOD InsertNoneditableTextNode(nsIDOMNode* aParent,
|
|
PRInt32 aOffset,
|
|
nsString& aStr);
|
|
NS_IMETHOD InsertFormattingForNode(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 SetCompositionString(const nsString& aCompositionString, nsIPrivateTextRangeList* aTextRangeList,nsTextEventReply* aReply);
|
|
NS_IMETHOD EndComposition(void);
|
|
|
|
public:
|
|
|
|
|
|
NS_IMETHOD InsertTextImpl(const nsString& aStringToInsert);
|
|
NS_IMETHOD DeleteSelectionImpl(ESelectionCollapseDirection aAction);
|
|
|
|
|
|
protected:
|
|
|
|
|
|
// why not use the one in nsHTMLDocument?
|
|
NS_IMETHOD GetBodyElement(nsIDOMElement **aElement);
|
|
|
|
//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);
|
|
|
|
|
|
/** 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 CreateTxnForDeleteSelection(ESelectionCollapseDirection aAction,
|
|
EditAggregateTxn ** aTxn);
|
|
|
|
NS_IMETHOD CreateTxnForDeleteInsertionPoint(nsIDOMRange *aRange,
|
|
ESelectionCollapseDirection 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,
|
|
InsertTextTxn ** aTxn);
|
|
|
|
NS_IMETHOD CreateTxnForIMEText(const nsString & aStringToInsert,
|
|
nsIPrivateTextRangeList* 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);
|
|
|
|
/** insert aStringToInsert as the first text in the document
|
|
*/
|
|
NS_IMETHOD DoInitialInsert(const nsString & aStringToInsert);
|
|
|
|
NS_IMETHOD DoInitialInputMethodInsert(const nsString & aStringToInsert, nsIPrivateTextRangeList* aTextRangeList);
|
|
|
|
|
|
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);
|
|
|
|
|
|
NS_IMETHOD SetInputMethodText(const nsString& aStringToInsert, nsIPrivateTextRangeList *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();
|
|
// 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 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
|
|
*/
|
|
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 aNodeToKeep
|
|
* @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);
|
|
|
|
/** This version is for exposure to JavaScript */
|
|
NS_IMETHOD NodeIsBlock(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);
|
|
|
|
// 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);
|
|
|
|
/** 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, PRInt32 *outOffset);
|
|
nsresult JoinNodeDeep(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsCOMPtr<nsIDOMNode> *aOutJoinNode, PRInt32 *outOffset);
|
|
|
|
nsresult GetString(const nsString& name, nsString& value);
|
|
|
|
nsresult BeginUpdateViewBatch(void);
|
|
nsresult EndUpdateViewBatch(void);
|
|
|
|
|
|
protected:
|
|
|
|
PRUint32 mFlags; // behavior flags. See nsIHTMLEditor.h for the flags we use.
|
|
|
|
nsWeakPtr mPresShellWeak; // weak reference to the nsIPresShell
|
|
nsIViewManager *mViewManager;
|
|
PRInt32 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;
|
|
|
|
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);
|
|
};
|
|
|
|
|
|
#endif
|