/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla 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/MPL/ * * 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 the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Daniel Glazman * Kathleen Brade * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #ifndef nsHTMLEditor_h__ #define nsHTMLEditor_h__ #include "nsCOMPtr.h" #include "nsCOMArray.h" #include "nsPlaintextEditor.h" #include "nsIEditor.h" #include "nsIHTMLEditor.h" #include "nsITableEditor.h" #include "nsIEditorMailSupport.h" #include "nsIEditorStyleSheets.h" #include "nsEditor.h" #include "nsIDOMElement.h" #include "nsIDOMEventListener.h" #include "nsICSSLoader.h" #include "nsICSSLoaderObserver.h" #include "nsITableLayout.h" #include "nsIRangeUtils.h" #include "nsEditRules.h" #include "nsEditProperty.h" #include "nsHTMLCSSUtils.h" #include "nsIParserService.h" #include "nsVoidArray.h" #include "nsHTMLObjectResizer.h" #include "nsIHTMLAbsPosEditor.h" #include "nsIHTMLInlineTableEditor.h" #include "nsIHTMLObjectResizeListener.h" #include "nsIDocumentObserver.h" #include "nsPoint.h" class nsIDOMKeyEvent; class nsITransferable; class nsIDOMEventReceiver; class nsIDOMNSRange; class nsIDocumentEncoder; class nsIClipboard; class TypeInState; class nsIContentFilter; class nsIURL; /** * The HTML editor implementation.
* Use to edit HTML document represented as a DOM tree. */ class nsHTMLEditor : public nsPlaintextEditor, public nsIHTMLEditor, public nsIHTMLObjectResizer, public nsIHTMLAbsPosEditor, public nsITableEditor, public nsIHTMLInlineTableEditor, public nsIEditorStyleSheets, public nsICSSLoaderObserver { typedef enum {eNoOp, eReplaceParent=1, eInsertParent=2} BlockTransformationType; public: enum OperationID { kOpInsertBreak = 3000, kOpMakeList = 3001, kOpIndent = 3002, kOpOutdent = 3003, kOpAlign = 3004, kOpMakeBasicBlock = 3005, kOpRemoveList = 3006, kOpMakeDefListItem = 3007, kOpInsertElement = 3008, kOpInsertQuotation = 3009, kOpSetTextProperty = 3010, kOpRemoveTextProperty = 3011, kOpHTMLPaste = 3012, kOpLoadHTML = 3013, kOpResetTextProperties = 3014, kOpSetAbsolutePosition = 3015, kOpRemoveAbsolutePosition = 3016, kOpDecreaseZIndex = 3017, kOpIncreaseZIndex = 3018 }; enum ResizingRequestID { kX = 0, kY = 1, kWidth = 2, kHeight = 3 }; // see nsIHTMLEditor for documentation //Interfaces for addref and release and queryinterface //NOTE macro used is for classes that inherit from // another class. Only the base class should use NS_DECL_ISUPPORTS NS_DECL_ISUPPORTS_INHERITED nsHTMLEditor(); virtual ~nsHTMLEditor(); /* ------------ nsPlaintextEditor overrides -------------- */ NS_IMETHODIMP HandleKeyPress(nsIDOMKeyEvent* aKeyEvent); NS_IMETHOD GetIsDocumentEditable(PRBool *aIsDocumentEditable); NS_IMETHODIMP BeginningOfDocument(); /* ------------ nsIHTMLEditor methods -------------- */ NS_DECL_NSIHTMLEDITOR /* ------------ nsIHTMLObjectResizer methods -------------- */ /* -------- Implemented in nsHTMLObjectResizer.cpp -------- */ NS_DECL_NSIHTMLOBJECTRESIZER /* ------------ nsIHTMLAbsPosEditor methods -------------- */ /* -------- Implemented in nsHTMLAbsPosition.cpp --------- */ NS_DECL_NSIHTMLABSPOSEDITOR /* ------------ nsIHTMLInlineTableEditor methods -------------- */ /* ------- Implemented in nsHTMLInlineTableEditor.cpp --------- */ NS_DECL_NSIHTMLINLINETABLEEDITOR /* ------------ nsIHTMLEditor methods -------------- */ NS_IMETHOD CopyLastEditableChildStyles(nsIDOMNode *aPreviousBlock, nsIDOMNode *aNewBlock, nsIDOMNode **aOutBrNode); NS_IMETHOD LoadHTML(const nsAString &aInputString); NS_IMETHOD GetParentBlockTags(nsStringArray *aTagList, PRBool aGetLists); nsresult GetCSSBackgroundColorState(PRBool *aMixed, nsAString &aOutColor, PRBool aBlockLevel); NS_IMETHOD GetHTMLBackgroundColorState(PRBool *aMixed, nsAString &outColor); NS_IMETHOD GetHighlightColor(PRBool *mixed, PRUnichar **_retval); NS_IMETHOD GetNextElementByTagName(nsIDOMElement *aCurrentElement, const nsAString *aTagName, nsIDOMElement **aReturn); /* ------------ nsIEditorIMESupport overrides -------------- */ NS_IMETHOD SetCompositionString(const nsAString& aCompositionString, nsIPrivateTextRangeList* aTextRangeList,nsTextEventReply* aReply); NS_IMETHOD GetReconversionString(nsReconversionEventReply* aReply); /* ------------ nsIEditorStyleSheets methods -------------- */ NS_IMETHOD AddStyleSheet(const nsAString & aURL); NS_IMETHOD ReplaceStyleSheet(const nsAString& aURL); NS_IMETHOD RemoveStyleSheet(const nsAString &aURL); NS_IMETHOD AddOverrideStyleSheet(const nsAString & aURL); NS_IMETHOD ReplaceOverrideStyleSheet(const nsAString& aURL); NS_IMETHOD RemoveOverrideStyleSheet(const nsAString &aURL); NS_IMETHOD EnableStyleSheet(const nsAString& aURL, PRBool aEnable); /* ------------ nsIEditorMailSupport methods -------------- */ NS_DECL_NSIEDITORMAILSUPPORT /* ------------ nsITableEditor methods -------------- */ NS_IMETHOD InsertTableCell(PRInt32 aNumber, PRBool aAfter); NS_IMETHOD InsertTableColumn(PRInt32 aNumber, PRBool aAfter); NS_IMETHOD InsertTableRow(PRInt32 aNumber, PRBool aAfter); NS_IMETHOD DeleteTable(); NS_IMETHOD DeleteTableCell(PRInt32 aNumber); NS_IMETHOD DeleteTableCellContents(); NS_IMETHOD DeleteTableColumn(PRInt32 aNumber); NS_IMETHOD DeleteTableRow(PRInt32 aNumber); NS_IMETHOD SelectTableCell(); NS_IMETHOD SelectBlockOfCells(nsIDOMElement *aStartCell, nsIDOMElement *aEndCell); NS_IMETHOD SelectTableRow(); NS_IMETHOD SelectTableColumn(); NS_IMETHOD SelectTable(); NS_IMETHOD SelectAllTableCells(); NS_IMETHOD SwitchTableCellHeaderType(nsIDOMElement *aSourceCell, nsIDOMElement **aNewCell); NS_IMETHOD JoinTableCells(PRBool aMergeNonContiguousContents); NS_IMETHOD SplitTableCell(); NS_IMETHOD NormalizeTable(nsIDOMElement *aTable); NS_IMETHOD GetCellIndexes(nsIDOMElement *aCell, PRInt32* aRowIndex, PRInt32* aColIndex); NS_IMETHOD GetTableSize(nsIDOMElement *aTable, PRInt32* aRowCount, PRInt32* aColCount); NS_IMETHOD GetCellAt(nsIDOMElement* aTable, PRInt32 aRowIndex, PRInt32 aColIndex, nsIDOMElement **aCell); NS_IMETHOD GetCellDataAt(nsIDOMElement* aTable, PRInt32 aRowIndex, PRInt32 aColIndex, nsIDOMElement **aCell, PRInt32* aStartRowIndex, PRInt32* aStartColIndex, PRInt32* aRowSpan, PRInt32* aColSpan, PRInt32* aActualRowSpan, PRInt32* aActualColSpan, PRBool* aIsSelected); NS_IMETHOD GetFirstRow(nsIDOMElement* aTableElement, nsIDOMNode** aRowNode); NS_IMETHOD GetNextRow(nsIDOMNode* aCurrentRowNode, nsIDOMNode** aRowNode); NS_IMETHOD GetFirstCellInRow(nsIDOMNode* aRowNode, nsIDOMNode** aCellNode); NS_IMETHOD GetNextCellInRow(nsIDOMNode* aCurrentCellNode, nsIDOMNode** aRowNode); NS_IMETHOD GetLastCellInRow(nsIDOMNode* aRowNode, nsIDOMNode** aCellNode); NS_IMETHOD SetSelectionAfterTableEdit(nsIDOMElement* aTable, PRInt32 aRow, PRInt32 aCol, PRInt32 aDirection, PRBool aSelected); NS_IMETHOD GetSelectedOrParentTableElement(nsAString& aTagName, PRInt32 *aSelectedCount, nsIDOMElement** aTableElement); NS_IMETHOD GetSelectedCellsType(nsIDOMElement *aElement, PRUint32 *aSelectionType); nsresult GetCellFromRange(nsIDOMRange *aRange, nsIDOMElement **aCell); // Finds the first selected cell in first range of selection // This is in the *order of selection*, not order in the table // (i.e., each cell added to selection is added in another range // in the selection's rangelist, independent of location in table) // aRange is optional: returns the range around the cell NS_IMETHOD GetFirstSelectedCell(nsIDOMRange **aRange, nsIDOMElement **aCell); // Get next cell until no more are found. Always use GetFirstSelected cell first // aRange is optional: returns the range around the cell NS_IMETHOD GetNextSelectedCell(nsIDOMRange **aRange, nsIDOMElement **aCell); // Upper-left-most selected cell in table NS_IMETHOD GetFirstSelectedCellInTable(PRInt32 *aRowIndex, PRInt32 *aColIndex, nsIDOMElement **aCell); /* miscellaneous */ // This sets background on the appropriate container element (table, cell,) // or calls into nsTextEditor to set the page background NS_IMETHOD SetCSSBackgroundColor(const nsAString& aColor); NS_IMETHOD SetHTMLBackgroundColor(const nsAString& aColor); /* ------------ Block methods moved from nsEditor -------------- */ static nsCOMPtr 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. *
tags separate block content sections. So the HTML markup: * 
    *      
text1
text2text3

    *
* 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, nsCOMArray& aSections); static nsCOMPtr NextNodeInBlock(nsIDOMNode *aNode, IterDirection aDir); nsresult IsNextCharWhitespace(nsIDOMNode *aParentNode, PRInt32 aOffset, PRBool *outIsSpace, PRBool *outIsNBSP, nsCOMPtr *outNode = 0, PRInt32 *outOffset = 0); nsresult IsPrevCharWhitespace(nsIDOMNode *aParentNode, PRInt32 aOffset, PRBool *outIsSpace, PRBool *outIsNBSP, nsCOMPtr *outNode = 0, PRInt32 *outOffset = 0); /* ------------ Overrides of nsEditor interface methods -------------- */ nsresult EndUpdateViewBatch(); /** prepare the editor for use */ NS_IMETHOD Init(nsIDOMDocument *aDoc, nsIPresShell *aPresShell, nsIContent *aRoot, nsISelectionController *aSelCon, PRUint32 aFlags); /** Internal, static version */ static nsresult NodeIsBlockStatic(nsIDOMNode *aNode, PRBool *aIsBlock); /** we override this here to install event listeners */ NS_IMETHOD PostCreate(); NS_IMETHOD GetFlags(PRUint32 *aFlags); NS_IMETHOD SetFlags(PRUint32 aFlags); NS_IMETHOD Paste(PRInt32 aSelectionType); NS_IMETHOD CanPaste(PRInt32 aSelectionType, PRBool *aCanPaste); NS_IMETHOD DebugUnitTests(PRInt32 *outNumTests, PRInt32 *outNumTestsFailed); /** 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(); /** returns PR_TRUE if aParentTag can contain a child of type aChildTag */ virtual PRBool TagCanContainTag(const nsAString& aParentTag, const nsAString& aChildTag); /** make the given selection span the entire document */ NS_IMETHOD SelectEntireDocument(nsISelection *aSelection); NS_IMETHOD SetAttributeOrEquivalent(nsIDOMElement * aElement, const nsAString & aAttribute, const nsAString & aValue, PRBool aSuppressTransaction); NS_IMETHOD RemoveAttributeOrEquivalent(nsIDOMElement * aElement, const nsAString & aAttribute, PRBool aSuppressTransaction); /** join together any afjacent editable text nodes in the range */ NS_IMETHOD CollapseAdjacentTextNodes(nsIDOMRange *aInRange); virtual PRBool NodesSameType(nsIDOMNode *aNode1, nsIDOMNode *aNode2); NS_IMETHODIMP DeleteNode(nsIDOMNode * aNode); NS_IMETHODIMP DeleteText(nsIDOMCharacterData *aTextNode, PRUint32 aOffset, PRUint32 aLength); /* ------------ nsICSSLoaderObserver -------------- */ NS_IMETHOD StyleSheetLoaded(nsICSSStyleSheet*aSheet, PRBool aNotify); /* ------------ Utility Routines, not part of public API -------------- */ NS_IMETHOD TypedText(const nsAString& aString, PRInt32 aAction); nsresult InsertNodeAtPoint( nsIDOMNode *aNode, nsCOMPtr *ioParent, PRInt32 *ioOffset, PRBool aNoEmptyNodes); nsCOMPtr FindUserSelectAllNode(nsIDOMNode *aNode); /** returns the absolute position of the end points of aSelection * in the document as a text stream. */ nsresult GetTextSelectionOffsets(nsISelection *aSelection, PRInt32 &aStartOffset, PRInt32 &aEndOffset); nsresult GetAbsoluteOffsetsForPoints(nsIDOMNode *aInStartNode, PRInt32 aInStartOffset, nsIDOMNode *aInEndNode, PRInt32 aInEndOffset, nsIDOMNode *aInCommonParentNode, PRInt32 &aOutStartOffset, PRInt32 &aEndOffset); // Use this to assure that selection is set after attribute nodes when // trying to collapse selection at begining of a block node // e.g., when setting at beginning of a table cell // This will stop at a table, however, since we don't want to // "drill down" into nested tables. // aSelection is optional -- if null, we get current seletion nsresult CollapseSelectionToDeepestNonTableFirstChild(nsISelection *aSelection, nsIDOMNode *aNode); virtual PRBool IsTextInDirtyFrameVisible(nsIDOMNode *aNode); nsresult IsVisTextNode( nsIDOMNode *aNode, PRBool *outIsEmptyNode, PRBool aSafeToAskFrames); nsresult IsEmptyNode(nsIDOMNode *aNode, PRBool *outIsEmptyBlock, PRBool aMozBRDoesntCount = PR_FALSE, PRBool aListOrCellNotEmpty = PR_FALSE, PRBool aSafeToAskFrames = PR_FALSE); nsresult IsEmptyNodeImpl(nsIDOMNode *aNode, PRBool *outIsEmptyBlock, PRBool aMozBRDoesntCount, PRBool aListOrCellNotEmpty, PRBool aSafeToAskFrames, PRBool *aSeenBR); // Stylesheet-related methods that aren't part of nsIEditorStyleSheets. nsresult AddCSSStyleSheet(nsICSSStyleSheet* aSheet); nsresult GetCSSLoader(const nsAString& aURL, nsICSSLoader** aCSSLoader); // Returns TRUE if sheet was loaded, false if it wasn't PRBool EnableExistingStyleSheet(const nsAString& aURL); // Dealing with the internal style sheet lists: NS_IMETHOD GetStyleSheetForURL(const nsAString &aURL, nsICSSStyleSheet **_retval); NS_IMETHOD GetURLForStyleSheet(nsICSSStyleSheet *aStyleSheet, nsAString &aURL); // Add a url + known style sheet to the internal lists: nsresult AddNewStyleSheetToList(const nsAString &aURL, nsICSSStyleSheet *aStyleSheet); nsresult RemoveStyleSheetFromList(const nsAString &aURL); protected: NS_IMETHOD InitRules(); /** install the event listeners for the editor * used to be part of Init, but now broken out into a separate method * called by PostCreate, giving the caller the chance to interpose * their own listeners before we install our own backstops. */ NS_IMETHOD InstallEventListeners(); /** returns the layout object (nsIFrame in the real world) for aNode * @param aNode the content to get a frame for * @param aLayoutObject the "primary frame" for aNode, if one exists. May be null * @return NS_OK whether a frame is found or not * an error if some serious error occurs */ NS_IMETHOD GetLayoutObject(nsIDOMNode *aInNode, nsISupports **aOutLayoutObject); // Return TRUE if aElement is a table-related elemet and caret was set PRBool SetCaretInTableCell(nsIDOMElement* aElement); PRBool IsElementInBody(nsIDOMElement* aElement); // inline style caching void ClearInlineStylesCache(); // key event helpers NS_IMETHOD TabInTable(PRBool inIsShift, PRBool *outHandled); NS_IMETHOD CreateBR(nsIDOMNode *aNode, PRInt32 aOffset, nsCOMPtr *outBRNode, nsIEditor::EDirection aSelect = nsIEditor::eNone); NS_IMETHOD CreateBRImpl(nsCOMPtr *aInOutParent, PRInt32 *aInOutOffset, nsCOMPtr *outBRNode, nsIEditor::EDirection aSelect); NS_IMETHOD InsertBR(nsCOMPtr *outBRNode); // Table Editing (implemented in nsTableEditor.cpp) // Table utilities // Insert a new cell after or before supplied aCell. // Optional: If aNewCell supplied, returns the newly-created cell (addref'd, of course) // This doesn't change or use the current selection NS_IMETHOD InsertCell(nsIDOMElement *aCell, PRInt32 aRowSpan, PRInt32 aColSpan, PRBool aAfter, PRBool aIsHeader, nsIDOMElement **aNewCell); // Helpers that don't touch the selection or do batch transactions NS_IMETHOD DeleteRow(nsIDOMElement *aTable, PRInt32 aRowIndex); NS_IMETHOD DeleteColumn(nsIDOMElement *aTable, PRInt32 aColIndex); NS_IMETHOD DeleteCellContents(nsIDOMElement *aCell); // Move all contents from aCellToMerge into aTargetCell (append at end) NS_IMETHOD MergeCells(nsCOMPtr aTargetCell, nsCOMPtr aCellToMerge, PRBool aDeleteCellToMerge); NS_IMETHOD DeleteTable2(nsIDOMElement *aTable, nsISelection *aSelection); NS_IMETHOD SetColSpan(nsIDOMElement *aCell, PRInt32 aColSpan); NS_IMETHOD SetRowSpan(nsIDOMElement *aCell, PRInt32 aRowSpan); // Helper used to get nsITableLayout interface for methods implemented in nsTableFrame NS_IMETHOD GetTableLayoutObject(nsIDOMElement* aTable, nsITableLayout **tableLayoutObject); // Needed to do appropriate deleting when last cell or row is about to be deleted // This doesn't count cells that don't start in the given row (are spanning from row above) PRInt32 GetNumberOfCellsInRow(nsIDOMElement* aTable, PRInt32 rowIndex); // Test if all cells in row or column at given index are selected PRBool AllCellsInRowSelected(nsIDOMElement *aTable, PRInt32 aRowIndex, PRInt32 aNumberOfColumns); PRBool AllCellsInColumnSelected(nsIDOMElement *aTable, PRInt32 aColIndex, PRInt32 aNumberOfRows); PRBool IsEmptyCell(nsIDOMElement *aCell); // Most insert methods need to get the same basic context data // Any of the pointers may be null if you don't need that datum (for more efficiency) // Input: *aCell is a known cell, // if null, cell is obtained from the anchor node of the selection // Returns NS_EDITOR_ELEMENT_NOT_FOUND if cell is not found even if aCell is null NS_IMETHOD GetCellContext(nsISelection **aSelection, nsIDOMElement **aTable, nsIDOMElement **aCell, nsIDOMNode **aCellParent, PRInt32 *aCellOffset, PRInt32 *aRowIndex, PRInt32 *aColIndex); NS_IMETHOD GetCellSpansAt(nsIDOMElement* aTable, PRInt32 aRowIndex, PRInt32 aColIndex, PRInt32& aActualRowSpan, PRInt32& aActualColSpan); NS_IMETHOD SplitCellIntoColumns(nsIDOMElement *aTable, PRInt32 aRowIndex, PRInt32 aColIndex, PRInt32 aColSpanLeft, PRInt32 aColSpanRight, nsIDOMElement **aNewCell); NS_IMETHOD SplitCellIntoRows(nsIDOMElement *aTable, PRInt32 aRowIndex, PRInt32 aColIndex, PRInt32 aRowSpanAbove, PRInt32 aRowSpanBelow, nsIDOMElement **aNewCell); nsresult CopyCellBackgroundColor(nsIDOMElement *destCell, nsIDOMElement *sourceCell); // Reduce rowspan/colspan when cells span into non-existent rows/columns NS_IMETHOD FixBadRowSpan(nsIDOMElement *aTable, PRInt32 aRowIndex, PRInt32& aNewRowCount); NS_IMETHOD FixBadColSpan(nsIDOMElement *aTable, PRInt32 aColIndex, PRInt32& aNewColCount); // Fallback method: Call this after using ClearSelection() and you // failed to set selection to some other content in the document NS_IMETHOD SetSelectionAtDocumentStart(nsISelection *aSelection); // End of Table Editing utilities NS_IMETHOD IsRootTag(nsString &aTag, PRBool &aIsTag); NS_IMETHOD IsSubordinateBlock(nsString &aTag, PRBool &aIsTag); virtual PRBool IsBlockNode(nsIDOMNode *aNode); static nsCOMPtr GetEnclosingTable(nsIDOMNode *aNode); /** content-based query returns PR_TRUE if effects aNode * If contains aNode, * but also contains aNode and the second is * more deeply nested than the first, then the first does not effect aNode. * * @param aNode The target of the query * @param aProperty The property that we are querying for * @param aAttribute The attribute of aProperty, example: color in * May be null. * @param aValue The value of aAttribute, example: blue in * May be null. Ignored if aAttribute is null. * @param aIsSet [OUT] PR_TRUE if effects aNode. * @param aStyleNode [OUT] set to the node representing , if found. * null if aIsSet is returned as PR_FALSE; */ virtual void IsTextPropertySetByContent(nsIDOMNode *aNode, nsIAtom *aProperty, const nsAString *aAttribute, const nsAString *aValue, PRBool &aIsSet, nsIDOMNode **aStyleNode, nsAString *outValue = nsnull); void ResetTextSelectionForRange(nsIDOMNode *aParent, PRInt32 aStartOffset, PRInt32 aEndOffset, nsISelection *aSelection); // Methods for handling plaintext quotations NS_IMETHOD PasteAsPlaintextQuotation(PRInt32 aSelectionType); /** Insert a string as quoted text, * replacing the selected text (if any). * @param aQuotedText The string to insert. * @param aAddCites Whether to prepend extra ">" to each line * (usually true, unless those characters * have already been added.) * @return aNodeInserted The node spanning the insertion, if applicable. * If aAddCites is false, this will be null. */ NS_IMETHOD InsertAsPlaintextQuotation(const nsAString & aQuotedText, PRBool aAddCites, nsIDOMNode **aNodeInserted); // factored methods for handling insertion of data from transferables (drag&drop or clipboard) NS_IMETHOD PrepareTransferable(nsITransferable **transferable); NS_IMETHOD PrepareHTMLTransferable(nsITransferable **transferable, PRBool havePrivFlavor); nsresult PutDragDataInTransferable(nsITransferable **aTransferable); NS_IMETHOD InsertFromTransferable(nsITransferable *transferable, nsIDOMDocument *aSourceDoc, const nsAString & aContextStr, const nsAString & aInfoStr, nsIDOMNode *aDestinationNode, PRInt32 aDestinationOffset, PRBool aDoDeleteSelection); PRBool HavePrivateHTMLFlavor( nsIClipboard *clipboard ); nsresult ParseCFHTML(nsCString & aCfhtml, PRUnichar **aStuffToPaste, PRUnichar **aCfcontext); nsresult DoContentFilterCallback(const nsAString &aFlavor, nsIDOMDocument *aSourceDoc, PRBool aWillDeleteSelection, nsIDOMNode **aFragmentAsNode, nsIDOMNode **aFragStartNode, PRInt32 *aFragStartOffset, nsIDOMNode **aFragEndNode, PRInt32 *aFragEndOffset, nsIDOMNode **aTargetNode, PRInt32 *aTargetOffset, PRBool *aDoContinue); nsresult RelativizeURIInFragmentList(nsCOMArray aNodeList, const nsAString &aFlavor, nsIDOMDocument *aSourceDoc, nsIDOMNode *aTargetNode); nsresult RelativizeURIForNode(nsIDOMNode *aNode, nsIURL *aDestURL); nsresult GetAttributeToModifyOnNode(nsIDOMNode *aNode, nsAString &aAttrib); PRBool IsInLink(nsIDOMNode *aNode, nsCOMPtr *outLink = nsnull); nsresult StripFormattingNodes(nsIDOMNode *aNode, PRBool aOnlyList = PR_FALSE); nsresult CreateDOMFragmentFromPaste(const nsAString & aInputString, const nsAString & aContextStr, const nsAString & aInfoStr, nsCOMPtr *outFragNode, PRInt32 *outRangeStartHint, PRInt32 *outRangeEndHint); nsresult ParseFragment(const nsAString & aStr, nsVoidArray &aTagStack, nsIDocument* aTargetDoc, nsCOMPtr *outNode); nsresult CreateListOfNodesToPaste(nsIDOMNode *aFragmentAsNode, nsCOMArray& outNodeList, nsIDOMNode *aStartNode, PRInt32 aStartOffset, nsIDOMNode *aEndNode, PRInt32 aEndOffset); nsresult CreateTagStack(nsVoidArray &aTagStack, nsIDOMNode *aNode); void FreeTagStackStrings(nsVoidArray &tagStack); nsresult GetListAndTableParents( PRBool aEnd, nsCOMArray& aListOfNodes, nsCOMArray& outArray); nsresult DiscoverPartialListsAndTables(nsCOMArray& aPasteNodes, nsCOMArray& aListsAndTables, PRInt32 *outHighWaterMark); nsresult ScanForListAndTableStructure(PRBool aEnd, nsCOMArray& aNodes, nsIDOMNode *aListOrTable, nsCOMPtr *outReplaceNode); nsresult ReplaceOrphanedStructure( PRBool aEnd, nsCOMArray& aNodeArray, nsCOMArray& aListAndTableArray, PRInt32 aHighWaterMark); nsIDOMNode* GetArrayEndpoint(PRBool aEnd, nsCOMArray& aNodeArray); /** simple utility to handle any error with event listener allocation or registration */ void HandleEventListenerError(); /* small utility routine to test if a break node is visible to user */ PRBool IsVisBreak(nsIDOMNode *aNode); /* utility routine to possibly adjust the insertion position when inserting a block level element */ void NormalizeEOLInsertPosition(nsIDOMNode *firstNodeToInsert, nsCOMPtr *insertParentNode, PRInt32 *insertOffset); /* small utility routine to test the eEditorReadonly bit */ PRBool IsModifiable(); /* helpers for block transformations */ nsresult MakeDefinitionItem(const nsAString & aItemType); nsresult InsertBasicBlock(const nsAString & aBlockType); /* increase/decrease the font size of selection */ nsresult RelativeFontChange( PRInt32 aSizeChange); /* helper routines for font size changing */ nsresult RelativeFontChangeOnTextNode( PRInt32 aSizeChange, nsIDOMCharacterData *aTextNode, PRInt32 aStartOffset, PRInt32 aEndOffset); nsresult RelativeFontChangeOnNode( PRInt32 aSizeChange, nsIDOMNode *aNode); nsresult RelativeFontChangeHelper( PRInt32 aSizeChange, nsIDOMNode *aNode); /* helper routines for inline style */ nsresult SetInlinePropertyOnTextNode( nsIDOMCharacterData *aTextNode, PRInt32 aStartOffset, PRInt32 aEndOffset, nsIAtom *aProperty, const nsAString *aAttribute, const nsAString *aValue); nsresult SetInlinePropertyOnNode( nsIDOMNode *aNode, nsIAtom *aProperty, const nsAString *aAttribute, const nsAString *aValue); nsresult PromoteInlineRange(nsIDOMRange *inRange); nsresult PromoteRangeIfStartsOrEndsInNamedAnchor(nsIDOMRange *inRange); nsresult SplitStyleAboveRange(nsIDOMRange *aRange, nsIAtom *aProperty, const nsAString *aAttribute); nsresult SplitStyleAbovePoint(nsCOMPtr *aNode, PRInt32 *aOffset, nsIAtom *aProperty, const nsAString *aAttribute, nsCOMPtr *outLeftNode = nsnull, nsCOMPtr *outRightNode = nsnull); nsresult ApplyDefaultProperties(); nsresult RemoveStyleInside(nsIDOMNode *aNode, nsIAtom *aProperty, const nsAString *aAttribute, PRBool aChildrenOnly = PR_FALSE); nsresult RemoveInlinePropertyImpl(nsIAtom *aProperty, const nsAString *aAttribute); PRBool NodeIsProperty(nsIDOMNode *aNode); PRBool HasAttr(nsIDOMNode *aNode, const nsAString *aAttribute); PRBool HasAttrVal(nsIDOMNode *aNode, const nsAString *aAttribute, const nsAString *aValue); PRBool IsAtFrontOfNode(nsIDOMNode *aNode, PRInt32 aOffset); PRBool IsAtEndOfNode(nsIDOMNode *aNode, PRInt32 aOffset); PRBool IsOnlyAttribute(nsIDOMNode *aElement, const nsAString *aAttribute); nsresult RemoveBlockContainer(nsIDOMNode *inNode); nsresult GetPriorHTMLSibling(nsIDOMNode *inNode, nsCOMPtr *outNode); nsresult GetPriorHTMLSibling(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr *outNode); nsresult GetNextHTMLSibling(nsIDOMNode *inNode, nsCOMPtr *outNode); nsresult GetNextHTMLSibling(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr *outNode); nsresult GetPriorHTMLNode(nsIDOMNode *inNode, nsCOMPtr *outNode, PRBool bNoBlockCrossing = PR_FALSE); nsresult GetPriorHTMLNode(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr *outNode, PRBool bNoBlockCrossing = PR_FALSE); nsresult GetNextHTMLNode(nsIDOMNode *inNode, nsCOMPtr *outNode, PRBool bNoBlockCrossing = PR_FALSE); nsresult GetNextHTMLNode(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr *outNode, PRBool bNoBlockCrossing = PR_FALSE); nsresult IsFirstEditableChild( nsIDOMNode *aNode, PRBool *aOutIsFirst); nsresult IsLastEditableChild( nsIDOMNode *aNode, PRBool *aOutIsLast); nsresult GetFirstEditableChild( nsIDOMNode *aNode, nsCOMPtr *aOutFirstChild); nsresult GetLastEditableChild( nsIDOMNode *aNode, nsCOMPtr *aOutLastChild); nsresult GetFirstEditableLeaf( nsIDOMNode *aNode, nsCOMPtr *aOutFirstLeaf); nsresult GetLastEditableLeaf( nsIDOMNode *aNode, nsCOMPtr *aOutLastLeaf); nsresult GetDOMEventReceiver(nsIDOMEventReceiver **aEventReceiver); //XXX Kludge: Used to suppress spurious drag/drop events (bug 50703) PRBool mIgnoreSpuriousDragEvent; nsresult GetInlinePropertyBase(nsIAtom *aProperty, const nsAString *aAttribute, const nsAString *aValue, PRBool *aFirst, PRBool *aAny, PRBool *aAll, nsAString *outValue, PRBool aCheckDefaults = PR_TRUE); nsresult HasStyleOrIdOrClass(nsIDOMElement * aElement, PRBool *aHasStyleOrIdOrClass); nsresult RemoveElementIfNoStyleOrIdOrClass(nsIDOMElement * aElement, nsIAtom * aTag); // Data members protected: nsCOMArray mContentFilters; TypeInState* mTypeInState; nsCOMPtr mBoldAtom; nsCOMPtr mItalicAtom; nsCOMPtr mUnderlineAtom; nsCOMPtr mFontAtom; nsCOMPtr mLinkAtom; nsCOMPtr mCachedNode; PRBool mCachedBoldStyle; PRBool mCachedItalicStyle; PRBool mCachedUnderlineStyle; nsString mCachedFontName; // Used to disable HTML formatting commands during HTML source editing PRBool mCanEditHTML; // Used by GetFirstSelectedCell and GetNextSelectedCell PRInt32 mSelectedCellIndex; nsCOMPtr mRangeHelper; nsString mLastStyleSheetURL; nsString mLastOverrideStyleSheetURL; PRBool mCSSAware; nsHTMLCSSUtils *mHTMLCSSUtils; // Maintain a list of associated style sheets and their urls. nsStringArray mStyleSheetURLs; nsCOMArray mStyleSheets; PRInt32 mNumStyleSheets; // an array for holding default style settings nsVoidArray mDefaultStyles; // Maintain a static parser service ... static nsCOMPtr sParserService; // ... which means that we need an instance count to know when to delete it static PRInt32 sInstanceCount; protected: /* ANONYMOUS UTILS */ void DeleteRefToAnonymousNode(nsIDOMElement* aElement, nsIContent * aParentContent, nsIDocumentObserver * aDocObserver); nsresult GetElementOrigin(nsIDOMElement * aElement, PRInt32 & aX, PRInt32 & aY); nsresult GetPositionAndDimensions(nsIDOMElement * aElement, PRInt32 & aX, PRInt32 & aY, PRInt32 & aW, PRInt32 & aH, PRInt32 & aBorderLeft, PRInt32 & aBorderTop, PRInt32 & aMarginLeft, PRInt32 & aMarginTop); /* PACKED BOOLEANS FOR RESIZING, ABSOLUTE POSITIONING AND */ /* INLINE TABLE EDITING */ // resizing PRPackedBool mIsObjectResizingEnabled; PRPackedBool mIsResizing; PRPackedBool mPreserveRatio; PRPackedBool mResizedObjectIsAnImage; // absolute positioning PRPackedBool mIsAbsolutelyPositioningEnabled; PRPackedBool mResizedObjectIsAbsolutelyPositioned; PRPackedBool mGrabberClicked; PRPackedBool mIsMoving; PRPackedBool mSnapToGridEnabled; // inline table editing PRPackedBool mIsInlineTableEditingEnabled; /* RESIZING */ nsCOMPtr mTopLeftHandle; nsCOMPtr mTopHandle; nsCOMPtr mTopRightHandle; nsCOMPtr mLeftHandle; nsCOMPtr mRightHandle; nsCOMPtr mBottomLeftHandle; nsCOMPtr mBottomHandle; nsCOMPtr mBottomRightHandle; nsCOMPtr mActivatedHandle; nsCOMPtr mResizingShadow; nsCOMPtr mResizingInfo; nsCOMPtr mResizedObject; nsCOMPtr mMouseMotionListenerP; nsCOMPtr mMutationListenerP; nsCOMPtr mSelectionListenerP; nsCOMPtr mResizeEventListenerP; nsCOMArray objectResizeEventListeners; PRInt32 mOriginalX; PRInt32 mOriginalY; PRInt32 mResizedObjectX; PRInt32 mResizedObjectY; PRInt32 mResizedObjectWidth; PRInt32 mResizedObjectHeight; PRInt32 mResizedObjectMarginLeft; PRInt32 mResizedObjectMarginTop; PRInt32 mResizedObjectBorderLeft; PRInt32 mResizedObjectBorderTop; PRInt32 mXIncrementFactor; PRInt32 mYIncrementFactor; PRInt32 mWidthIncrementFactor; PRInt32 mHeightIncrementFactor; PRInt8 mInfoXIncrement; PRInt8 mInfoYIncrement; nsresult SetAllResizersPosition(); nsresult CreateResizer(nsIDOMElement ** aReturn, PRInt16 aLocation, nsIDOMNode * aParentNode); void SetAnonymousElementPosition(PRInt32 aX, PRInt32 aY, nsIDOMElement *aResizer); nsresult CreateShadow(nsIDOMElement ** aReturn, nsIDOMNode * aParentNode, nsIDOMElement * aOriginalObject); nsresult SetShadowPosition(nsIDOMElement * aShadow, nsIDOMElement * aOriginalObject, PRInt32 aOriginalObjectX, PRInt32 aOriginalObjectY); nsresult CreateResizingInfo(nsIDOMElement ** aReturn, nsIDOMNode * aParentNode); nsresult SetResizingInfoPosition(PRInt32 aX, PRInt32 aY, PRInt32 aW, PRInt32 aH); PRInt32 GetNewResizingIncrement(PRInt32 aX, PRInt32 aY, PRInt32 aID); nsresult StartResizing(nsIDOMElement * aHandle); PRInt32 GetNewResizingX(PRInt32 aX, PRInt32 aY); PRInt32 GetNewResizingY(PRInt32 aX, PRInt32 aY); PRInt32 GetNewResizingWidth(PRInt32 aX, PRInt32 aY); PRInt32 GetNewResizingHeight(PRInt32 aX, PRInt32 aY); void HideShadowAndInfo(); void SetFinalSize(PRInt32 aX, PRInt32 aY); void DeleteRefToAnonymousNode(nsIDOMNode * aNode); void SetResizeIncrements(PRInt32 aX, PRInt32 aY, PRInt32 aW, PRInt32 aH, PRBool aPreserveRatio); void SetInfoIncrements(PRInt8 aX, PRInt8 aY); /* ABSOLUTE POSITIONING */ PRInt32 mPositionedObjectX; PRInt32 mPositionedObjectY; PRInt32 mPositionedObjectWidth; PRInt32 mPositionedObjectHeight; PRInt32 mPositionedObjectMarginLeft; PRInt32 mPositionedObjectMarginTop; PRInt32 mPositionedObjectBorderLeft; PRInt32 mPositionedObjectBorderTop; nsCOMPtr mAbsolutelyPositionedObject; nsCOMPtr mGrabber; nsCOMPtr mPositioningShadow; PRInt32 mGridSize; nsresult CreateGrabber(nsIDOMNode * aParentNode, nsIDOMElement ** aReturn); nsresult StartMoving(nsIDOMElement * aHandle); nsresult SetFinalPosition(PRInt32 aX, PRInt32 aY); void AddPositioningOffet(PRInt32 & aX, PRInt32 & aY); void SnapToGrid(PRInt32 & newX, PRInt32 & newY); nsresult GrabberClicked(); nsresult EndMoving(); nsresult CheckPositionedElementBGandFG(nsIDOMElement * aElement, nsAString & aReturn); /* INLINE TABLE EDITING */ nsCOMPtr mInlineEditedCell; nsCOMPtr mAddColumnBeforeButton; nsCOMPtr mRemoveColumnButton; nsCOMPtr mAddColumnAfterButton; nsCOMPtr mAddRowBeforeButton; nsCOMPtr mRemoveRowButton; nsCOMPtr mAddRowAfterButton; void AddMouseClickListener(nsIDOMElement * aElement); void RemoveMouseClickListener(nsIDOMElement * aElement); public: // friends friend class nsHTMLEditRules; friend class nsTextEditRules; friend class nsWSRunObject; }; #endif //nsHTMLEditor_h__