f4c17f81ff
fix for bug 45662 (updating range impl to dom spec) fix for some edge case selection issues invloving multiple windows, no bug # but saari knows about this. r: sfraser, jfrancis, mjudge, saari a: beppe git-svn-id: svn://10.0.0.236/trunk@77040 18797224-902f-48f8-a5cc-f745e15eee43
235 lines
9.1 KiB
C++
235 lines
9.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef nsRange_h___
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#define nsRange_h___
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/*
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* nsRange.h: interface of the nsRange object.
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*/
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#include "nsIDOMRange.h"
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#include "nsIDOMNSRange.h"
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#include "nsCOMPtr.h"
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#include "nsIDOMDocumentFragment.h"
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#include "nsIContent.h"
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#include "nsIDOMNode.h"
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#include "nsIScriptObjectOwner.h"
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#include "prmon.h"
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class nsVoidArray;
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class nsRange : public nsIDOMRange,
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public nsIDOMNSRange,
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public nsIScriptObjectOwner
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{
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public:
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NS_DECL_ISUPPORTS
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nsRange();
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virtual ~nsRange();
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// nsIDOMRange interface
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NS_IMETHOD GetIsPositioned(PRBool* aIsPositioned);
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NS_IMETHOD GetStartContainer(nsIDOMNode** aStartParent);
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NS_IMETHOD GetStartOffset(PRInt32* aStartOffset);
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NS_IMETHOD GetEndContainer(nsIDOMNode** aEndParent);
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NS_IMETHOD GetEndOffset(PRInt32* aEndOffset);
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NS_IMETHOD GetCollapsed(PRBool* aIsCollapsed);
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NS_IMETHOD GetCommonAncestorContainer(nsIDOMNode** aCommonParent);
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NS_IMETHOD SetStart(nsIDOMNode* aParent, PRInt32 aOffset);
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NS_IMETHOD SetStartBefore(nsIDOMNode* aSibling);
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NS_IMETHOD SetStartAfter(nsIDOMNode* aSibling);
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NS_IMETHOD SetEnd(nsIDOMNode* aParent, PRInt32 aOffset);
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NS_IMETHOD SetEndBefore(nsIDOMNode* aSibling);
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NS_IMETHOD SetEndAfter(nsIDOMNode* aSibling);
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NS_IMETHOD Collapse(PRBool aToStart);
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NS_IMETHOD Unposition();
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NS_IMETHOD SelectNode(nsIDOMNode* aN);
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NS_IMETHOD SelectNodeContents(nsIDOMNode* aN);
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NS_IMETHOD CompareBoundaryPoints(PRUint16 how, nsIDOMRange* srcRange, PRInt32* ret);
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NS_IMETHOD DeleteContents();
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NS_IMETHOD ExtractContents(nsIDOMDocumentFragment** aReturn);
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NS_IMETHOD CloneContents(nsIDOMDocumentFragment** aReturn);
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NS_IMETHOD InsertNode(nsIDOMNode* aN);
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NS_IMETHOD SurroundContents(nsIDOMNode* aN);
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NS_IMETHOD CloneRange(nsIDOMRange** aReturn);
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NS_IMETHOD Detach();
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NS_IMETHOD ToString(nsAWritableString& aReturn);
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/*BEGIN nsIDOMNSRange interface implementations*/
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NS_IMETHOD CreateContextualFragment(const nsAReadableString& aFragment,
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nsIDOMDocumentFragment** aReturn);
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NS_IMETHOD IsValidFragment(const nsAReadableString& aFragment, PRBool* aReturn);
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NS_IMETHOD IsPointInRange(nsIDOMNode* aParent, PRInt32 aOffset,
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PRBool* aResult);
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NS_IMETHOD ComparePoint(nsIDOMNode* aParent, PRInt32 aOffset,
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PRInt16* aResult);
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NS_IMETHOD IntersectsNode(nsIDOMNode* aNode, PRBool* aReturn);
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NS_IMETHOD CompareNode(nsIDOMNode* aNode, PRUint16* aReturn);
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/*END nsIDOMNSRange interface implementations*/
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NS_IMETHOD GetHasGeneratedBefore(PRBool *aBool);
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NS_IMETHOD GetHasGeneratedAfter(PRBool *aBool);
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NS_IMETHOD SetHasGeneratedBefore(PRBool aBool);
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NS_IMETHOD SetHasGeneratedAfter(PRBool aBool);
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NS_IMETHOD SetBeforeAndAfter(PRBool aBefore, PRBool aAfter);
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/*BEGIN nsIScriptObjectOwner interface implementations*/
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NS_IMETHOD GetScriptObject(nsIScriptContext *aContext, void** aScriptObject);
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NS_IMETHOD SetScriptObject(void *aScriptObject);
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/*END nsIScriptObjectOwner interface implementations*/
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// nsRange interface extensions
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static NS_METHOD OwnerGone(nsIContent* aParentNode);
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static NS_METHOD OwnerChildInserted(nsIContent* aParentNode, PRInt32 aOffset);
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static NS_METHOD OwnerChildRemoved(nsIContent* aParentNode, PRInt32 aOffset, nsIContent* aRemovedNode);
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static NS_METHOD OwnerChildReplaced(nsIContent* aParentNode, PRInt32 aOffset, nsIContent* aReplacedNode);
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static NS_METHOD TextOwnerChanged(nsIContent* aTextNode, PRInt32 aStartOffset, PRInt32 aEndOffset, PRInt32 aReplaceLength);
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//private: I wish VC++ would give me a &&*@!#$ break
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PRBool mIsPositioned;
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PRInt32 mStartOffset;
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PRInt32 mEndOffset;
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nsCOMPtr<nsIDOMNode> mStartParent;
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nsCOMPtr<nsIDOMNode> mEndParent;
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static PRMonitor *mMonitor; // monitor to protect the following statics
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static nsVoidArray *mStartAncestors; // just keeping these static to avoid reallocing the arrays.
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static nsVoidArray *mEndAncestors; // the contents of these arrays are discarded across calls.
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static nsVoidArray *mStartAncestorOffsets; // this also makes nsRange objects lighter weight.
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static nsVoidArray *mEndAncestorOffsets; //
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// no copy's or assigns
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nsRange(const nsRange&);
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nsRange& operator=(const nsRange&);
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// helper routines
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static PRBool InSameDoc(nsIDOMNode* aNode1, nsIDOMNode* aNode2);
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static PRInt32 IndexOf(nsIDOMNode* aNode);
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static PRInt32 FillArrayWithAncestors(nsVoidArray* aArray,nsIDOMNode* aNode);
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static nsCOMPtr<nsIDOMNode> CommonParent(nsIDOMNode* aNode1, nsIDOMNode* aNode2);
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static nsresult GetDOMNodeFromContent(nsIContent* inContentNode, nsCOMPtr<nsIDOMNode>* outDomNode);
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static nsresult GetContentFromDOMNode(nsIDOMNode* inDomNode, nsCOMPtr<nsIContent>* outContentNode);
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static nsresult PopRanges(nsIDOMNode* aDestNode, PRInt32 aOffset, nsIContent* aSourceNode);
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static nsresult Lock();
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static nsresult Unlock();
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static nsresult CloneSibsAndParents(nsIDOMNode* parentNode,
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PRInt32 nodeOffset,
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nsIDOMNode* clonedNode,
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nsIDOMNode* commonParent,
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nsIDOMDocumentFragment* docfrag,
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PRBool leftP);
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nsresult DoSetRange(nsIDOMNode* aStartN, PRInt32 aStartOffset,
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nsIDOMNode* aEndN, PRInt32 aEndOffset);
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PRBool IsIncreasing(nsIDOMNode* aStartN, PRInt32 aStartOff,
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nsIDOMNode* aEndN, PRInt32 aEndOff);
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nsresult ComparePointToRange(nsIDOMNode* aParent, PRInt32 aOffset, PRInt32* aResult);
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PRInt32 GetAncestorsAndOffsets(nsIDOMNode* aNode, PRInt32 aOffset,
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nsVoidArray* aAncestorNodes, nsVoidArray* aAncestorOffsets);
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nsresult AddToListOf(nsIDOMNode* aNode);
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nsresult RemoveFromListOf(nsIDOMNode* aNode);
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nsresult ContentOwnsUs(nsIDOMNode* domNode);
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protected:
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void* mScriptObject;
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PRBool mBeforeGenContent;
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PRBool mAfterGenContent;
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};
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// Make a new nsIDOMRange object
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nsresult NS_NewRange(nsIDOMRange** aInstancePtrResult);
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/*************************************************************************************
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* Utility routine to compare two "points", were a point is a node/offset pair
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* Returns -1 if point1 < point2, 1, if point1 > point2,
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* 0 if error or if point1 == point2.
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************************************************************************************/
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PRInt32 ComparePoints(nsIDOMNode* aParent1, PRInt32 aOffset1,
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nsIDOMNode* aParent2, PRInt32 aOffset2);
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/*************************************************************************************
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* Utility routine to detect if a content node intersects a range
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************************************************************************************/
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PRBool IsNodeIntersectsRange(nsIContent* aNode, nsIDOMRange* aRange);
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/*************************************************************************************
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* Utility routine to detect if a content node starts before a range and/or
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* ends after a range. If neither it is contained inside the range.
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*
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* XXX - callers responsibility to ensure node in same doc as range!
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*
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************************************************************************************/
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nsresult CompareNodeToRange(nsIContent* aNode,
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nsIDOMRange* aRange,
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PRBool *outNodeBefore,
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PRBool *outNodeAfter);
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/*************************************************************************************
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* Utility routine to create a pair of dom points to represent
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* the start and end locations of a single node. Return false
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* if we dont' succeed.
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************************************************************************************/
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PRBool GetNodeBracketPoints(nsIContent* aNode,
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nsCOMPtr<nsIDOMNode>* outParent,
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PRInt32* outStartOffset,
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PRInt32* outEndOffset);
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#endif /* nsRange_h___ */
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