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gecko-dev/editor/base/nsHTMLEditor.h
akkana%netscape.com b2618d9ca4 54726: Add link to W3C Validator 
90550: Need to rewrite URLs for publishing and for save as
91388: Link checker, Work in progress (doesn't work yet)
r=brade, sr=kin
2001-08-07 21:39:07 +00:00

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/* -*- 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 nsHTMLEditor_h__
#define nsHTMLEditor_h__
#include "nsCOMPtr.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 "nsIEditProperty.h"
class nsIDOMKeyEvent;
class nsITransferable;
class nsIDOMEventReceiver;
class nsIDOMNSRange;
class nsIDocumentEncoder;
class TypeInState;
/**
* The HTML editor implementation.<br>
* Use to edit HTML document represented as a DOM tree.
*/
class nsHTMLEditor : public nsPlaintextEditor,
public nsIHTMLEditor,
public nsITableEditor,
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
};
// 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_IMETHODIMP CollapseSelectionToStart();
/* ------------ nsIHTMLEditor methods -------------- */
NS_IMETHOD SetInlineProperty(nsIAtom *aProperty,
const nsAReadableString & aAttribute,
const nsAReadableString & aValue);
NS_IMETHOD GetInlineProperty(nsIAtom *aProperty,
const nsAReadableString & aAttribute,
const nsAReadableString & aValue,
PRBool *aFirst,
PRBool *aAny,
PRBool *aAll);
NS_IMETHOD GetInlinePropertyWithAttrValue(nsIAtom *aProperty,
const nsAReadableString &aAttribute,
const nsAReadableString &aValue,
PRBool *aFirst,
PRBool *aAny,
PRBool *aAll,
nsAWritableString &outValue);
NS_IMETHOD RemoveAllInlineProperties();
NS_IMETHOD RemoveInlineProperty(nsIAtom *aProperty, const nsAReadableString & aAttribute);
NS_IMETHOD IncreaseFontSize();
NS_IMETHOD DecreaseFontSize();
NS_IMETHOD InsertHTML(const nsAReadableString &aInputString);
NS_IMETHOD InsertHTMLWithCharset(const nsAReadableString& aInputString,
const nsAReadableString& aCharset);
NS_IMETHOD RebuildDocumentFromSource(const nsAReadableString& aSourceString);
NS_IMETHOD InsertElementAtSelection(nsIDOMElement* aElement, PRBool aDeleteSelection);
NS_IMETHOD SelectElement(nsIDOMElement* aElement);
NS_IMETHOD SetCaretAfterElement(nsIDOMElement* aElement);
NS_IMETHOD SetParagraphFormat(const nsAReadableString& aParagraphFormat);
NS_IMETHOD GetParentBlockTags(nsStringArray *aTagList, PRBool aGetLists);
NS_IMETHOD GetParagraphState(PRBool *aMixed, nsAWritableString &outFormat);
NS_IMETHOD GetFontFaceState(PRBool *aMixed, nsAWritableString &outFace);
NS_IMETHOD GetFontColorState(PRBool *aMixed, nsAWritableString &outColor);
NS_IMETHOD GetBackgroundColorState(PRBool *aMixed, nsAWritableString &outColor);
NS_IMETHOD GetListState(PRBool *aMixed, PRBool *aOL, PRBool *aUL, PRBool *aDL);
NS_IMETHOD GetListItemState(PRBool *aMixed, PRBool *aLI, PRBool *aDT, PRBool *aDD);
NS_IMETHOD GetAlignment(PRBool *aMixed, nsIHTMLEditor::EAlignment *aAlign);
NS_IMETHOD GetIndentState(PRBool *aCanIndent, PRBool *aCanOutdent);
NS_IMETHOD MakeOrChangeList(const nsAReadableString& aListType, PRBool entireList);
NS_IMETHOD RemoveList(const nsAReadableString& aListType);
NS_IMETHOD Indent(const nsAReadableString& aIndent);
NS_IMETHOD Align(const nsAReadableString& aAlign);
NS_IMETHOD GetElementOrParentByTagName(const nsAReadableString& aTagName, nsIDOMNode *aNode, nsIDOMElement** aReturn);
NS_IMETHOD GetSelectedElement(const nsAReadableString& aTagName, nsIDOMElement** aReturn);
NS_IMETHOD CreateElementWithDefaults(const nsAReadableString& aTagName, nsIDOMElement** aReturn);
NS_IMETHOD GetNextElementByTagName(nsIDOMElement *aCurrentElement, const nsAReadableString *aTagName, nsIDOMElement **aReturn);
NS_IMETHOD InsertLinkAroundSelection(nsIDOMElement* aAnchorElement);
NS_IMETHOD GetLinkedObjects(nsISupportsArray** aNodeList);
/* ------------ nsIEditorIMESupport overrides -------------- */
NS_IMETHOD SetCompositionString(const nsAReadableString& aCompositionString, nsIPrivateTextRangeList* aTextRangeList,nsTextEventReply* aReply);
NS_IMETHOD GetReconversionString(nsReconversionEventReply* aReply);
/* ------------ nsIEditorStyleSheets methods -------------- */
NS_IMETHOD ApplyStyleSheet(const nsAReadableString & aURL, nsICSSStyleSheet **aStyleSheet);
NS_IMETHOD ApplyOverrideStyleSheet(const nsAReadableString & aURL, nsICSSStyleSheet **aStyleSheet);
/* Above 2 methods call this with appropriate aOverride value
* Not exposed to IDL interface
*/
nsresult ApplyDocumentOrOverrideStyleSheet(const nsAReadableString & aURL, PRBool aOverride, nsICSSStyleSheet **aStyleSheet);
NS_IMETHOD AddStyleSheet(nsICSSStyleSheet* aSheet);
NS_IMETHOD RemoveStyleSheet(nsICSSStyleSheet* aSheet);
NS_IMETHOD RemoveOverrideStyleSheet(nsICSSStyleSheet* aSheet);
/* ------------ nsIEditorMailSupport methods -------------- */
NS_IMETHOD PasteAsQuotation(PRInt32 aSelectionType);
NS_IMETHOD InsertAsQuotation(const nsAReadableString & aQuotedText, nsIDOMNode **aNodeInserted);
NS_IMETHOD PasteAsCitedQuotation(const nsAReadableString & aCitation,
PRInt32 aSelectionType);
NS_IMETHOD InsertAsCitedQuotation(const nsAReadableString & aQuotedText,
const nsAReadableString & aCitation,
PRBool aInsertHTML,
const nsAReadableString & aCharset,
nsIDOMNode **aNodeInserted);
NS_IMETHOD GetEmbeddedObjects(nsISupportsArray** aNodeList);
/* ------------ 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(nsIDOMElement* &aTableElement, nsString& aTagName, PRInt32 &aSelectedCount);
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(nsIDOMElement **aCell, nsIDOMRange **aRange);
// 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(nsIDOMElement **aCell, nsIDOMRange **aRange);
// Upper-left-most selected cell in table
NS_IMETHOD GetFirstSelectedCellInTable(nsIDOMElement **aCell, PRInt32 *aRowIndex, PRInt32 *aColIndex);
/* miscellaneous */
// This sets background on the appropriate container element (table, cell,)
// or calls into nsTextEditor to set the page background
NS_IMETHOD SetBackgroundColor(const nsAReadableString& aColor);
NS_IMETHOD SetBodyAttribute(const nsAReadableString& aAttr, const nsAReadableString& aValue);
// aTitle may be null or empty string to remove child contents of <title>
NS_IMETHOD SetDocumentTitle(const nsAReadableString &aTitle);
/* ------------ Block methods moved from nsEditor -------------- */
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 nsCOMPtr<nsIDOMNode> NextNodeInBlock(nsIDOMNode *aNode, IterDirection aDir);
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);
/* ------------ Overrides of nsEditor interface methods -------------- */
/** 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);
/** This version is for exposure to JavaScript */
NS_IMETHOD NodeIsBlock(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 CanDrag(nsIDOMEvent *aDragEvent, PRBool *aCanDrag);
NS_IMETHOD DoDrag(nsIDOMEvent *aDragEvent);
NS_IMETHOD InsertFromDrop(nsIDOMEvent* aDropEvent);
NS_IMETHOD GetHeadContentsAsHTML(nsAWritableString& aOutputString);
NS_IMETHOD ReplaceHeadContentsWithHTML(const nsAReadableString &aSourceToInsert);
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 nsAReadableString& aParentTag, const nsAReadableString& aChildTag);
/** make the given selection span the entire document */
NS_IMETHOD SelectEntireDocument(nsISelection *aSelection);
/** join together any afjacent editable text nodes in the range */
NS_IMETHOD CollapseAdjacentTextNodes(nsIDOMRange *aInRange);
/* ------------ nsICSSLoaderObserver -------------- */
NS_IMETHOD StyleSheetLoaded(nsICSSStyleSheet*aSheet, PRBool aNotify);
/* ------------ Utility Routines, not part of public API -------------- */
NS_IMETHOD TypedText(const nsAReadableString& aString, PRInt32 aAction);
nsresult InsertNodeAtPoint( nsIDOMNode *aNode,
nsCOMPtr<nsIDOMNode> *ioParent,
PRInt32 *ioOffset,
PRBool aNoEmptyNodes);
/** 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);
nsresult IsEmptyNode(nsIDOMNode *aNode, PRBool *outIsEmptyBlock,
PRBool aMozBRDoesntCount = PR_FALSE,
PRBool aListOrCellNotEmpty = PR_FALSE,
PRBool aSafeToAskFrames = PR_FALSE);
PRBool IsBlockNode(nsIDOMNode *aNode);
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);
/* StyleSheet load callback */
static void ApplyStyleSheetToPresShellDocument(nsICSSStyleSheet* aSheet, void *aData);
/* remove the old style sheet, and apply the supplied one */
NS_IMETHOD ReplaceStyleSheet(nsICSSStyleSheet *aNewSheet);
// 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 CacheInlineStyles(nsIDOMNode *aNode);
void ClearInlineStylesCache();
// key event helpers
NS_IMETHOD TabInTable(PRBool inIsShift, PRBool *outHandled);
NS_IMETHOD CreateBR(nsIDOMNode *aNode, PRInt32 aOffset,
nsCOMPtr<nsIDOMNode> *outBRNode, nsIEditor::EDirection aSelect = nsIEditor::eNone);
NS_IMETHOD CreateBRImpl(nsCOMPtr<nsIDOMNode> *aInOutParent,
PRInt32 *aInOutOffset,
nsCOMPtr<nsIDOMNode> *outBRNode,
nsIEditor::EDirection aSelect);
NS_IMETHOD InsertBR(nsCOMPtr<nsIDOMNode> *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<nsIDOMElement> aTargetCell, nsCOMPtr<nsIDOMElement> 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);
static nsCOMPtr<nsIDOMNode> GetEnclosingTable(nsIDOMNode *aNode);
/** content-based query returns PR_TRUE if <aProperty aAttribute=aValue> effects aNode
* If <aProperty aAttribute=aValue> contains aNode,
* but <aProperty aAttribute=SomeOtherValue> 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 <FONT color="blue">
* May be null.
* @param aValue The value of aAttribute, example: blue in <FONT color="blue">
* May be null. Ignored if aAttribute is null.
* @param aIsSet [OUT] PR_TRUE if <aProperty aAttribute=aValue> effects aNode.
* @param aStyleNode [OUT] set to the node representing <aProperty aAttribute=aValue>, if found.
* null if aIsSet is returned as PR_FALSE;
*/
virtual void IsTextPropertySetByContent(nsIDOMNode *aNode,
nsIAtom *aProperty,
const nsAReadableString *aAttribute,
const nsAReadableString *aValue,
PRBool &aIsSet,
nsIDOMNode **aStyleNode,
nsString *outValue = nsnull) const;
/** style-based query returns PR_TRUE if (aProperty, aAttribute) is set in aSC.
* WARNING: not well tested yet since we don't do style-based queries anywhere.
*/
virtual void IsTextStyleSet(nsIStyleContext *aSC,
nsIAtom *aProperty,
const nsAReadableString *aAttributes,
PRBool &aIsSet) const;
void ResetTextSelectionForRange(nsIDOMNode *aParent,
PRInt32 aStartOffset,
PRInt32 aEndOffset,
nsISelection *aSelection);
// Methods for handling plaintext quotations
NS_IMETHOD PasteAsPlaintextQuotation(PRInt32 aSelectionType);
NS_IMETHOD InsertAsPlaintextQuotation(const nsAReadableString & aQuotedText,
nsIDOMNode **aNodeInserted);
// factored methods for handling insertion of data from transferables (drag&drop or clipboard)
NS_IMETHOD PrepareTransferable(nsITransferable **transferable);
NS_IMETHOD InsertFromTransferable(nsITransferable *transferable,
const nsAReadableString & aContextStr,
const nsAReadableString & aInfoStr);
nsresult InsertHTMLWithContext(const nsAReadableString & aInputString,
const nsAReadableString & aContextStr,
const nsAReadableString & aInfoStr);
nsresult InsertHTMLWithCharsetAndContext(const nsAReadableString & aInputString,
const nsAReadableString & aCharset,
const nsAReadableString & aContextStr,
const nsAReadableString & aInfoStr);
nsresult StripFormattingNodes(nsIDOMNode *aNode);
nsresult CreateDOMFragmentFromPaste(nsIDOMNSRange *aNSRange,
const nsAReadableString & aInputString,
const nsAReadableString & aContextStr,
const nsAReadableString & aInfoStr,
nsCOMPtr<nsIDOMNode> *outFragNode,
PRInt32 *outRangeStartHint,
PRInt32 *outRangeEndHint);
nsresult CreateListOfNodesToPaste(nsIDOMNode *aFragmentAsNode,
nsCOMPtr<nsISupportsArray> *outNodeList,
PRInt32 aRangeStartHint,
PRInt32 aRangeEndHint);
nsresult GetListAndTableParents( PRBool aEnd,
nsISupportsArray *aListOfNodes,
nsCOMPtr<nsISupportsArray> *outArray);
nsresult DiscoverPartialListsAndTables( nsISupportsArray *aPasteNodes,
nsISupportsArray *aListsAndTables,
PRInt32 *outHighWaterMark);
nsresult ScanForListAndTableStructure(PRBool aEnd,
nsISupportsArray *aNodes,
nsIDOMNode *aListOrTable,
nsCOMPtr<nsIDOMNode> *outReplaceNode);
nsresult ReplaceOrphanedStructure( PRBool aEnd,
nsISupportsArray *aNodeArray,
nsISupportsArray *aListAndTableArray,
PRInt32 aHighWaterMark);
nsISupports* GetArrayEndpoint(PRBool aEnd, nsISupportsArray *aNodeArray);
/** simple utility to handle any error with event listener allocation or registration */
void HandleEventListenerError();
/* small utility routine to test the eEditorReadonly bit */
PRBool IsModifiable();
/* helpers for block transformations */
nsresult MakeDefinitionItem(const nsAReadableString & aItemType);
nsresult InsertBasicBlock(const nsAReadableString & 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);
/* helper routines for inline style */
nsresult SetInlinePropertyOnTextNode( nsIDOMCharacterData *aTextNode,
PRInt32 aStartOffset,
PRInt32 aEndOffset,
nsIAtom *aProperty,
const nsAReadableString *aAttribute,
const nsAReadableString *aValue);
nsresult SetInlinePropertyOnNode( nsIDOMNode *aNode,
nsIAtom *aProperty,
const nsAReadableString *aAttribute,
const nsAReadableString *aValue);
nsresult PromoteInlineRange(nsIDOMRange *inRange);
nsresult SplitStyleAboveRange(nsIDOMRange *aRange,
nsIAtom *aProperty,
const nsAReadableString *aAttribute);
nsresult SplitStyleAbovePoint(nsCOMPtr<nsIDOMNode> *aNode,
PRInt32 *aOffset,
nsIAtom *aProperty,
const nsAReadableString *aAttribute,
nsCOMPtr<nsIDOMNode> *outLeftNode = nsnull,
nsCOMPtr<nsIDOMNode> *outRightNode = nsnull);
nsresult RemoveStyleInside(nsIDOMNode *aNode,
nsIAtom *aProperty,
const nsAReadableString *aAttribute,
PRBool aChildrenOnly = PR_FALSE);
nsresult RemoveInlinePropertyImpl(nsIAtom *aProperty, const nsAReadableString *aAttribute);
PRBool NodeIsProperty(nsIDOMNode *aNode);
PRBool HasAttr(nsIDOMNode *aNode, const nsAReadableString *aAttribute);
PRBool HasAttrVal(nsIDOMNode *aNode, const nsAReadableString *aAttribute, const nsAReadableString *aValue);
PRBool IsAtFrontOfNode(nsIDOMNode *aNode, PRInt32 aOffset);
PRBool IsAtEndOfNode(nsIDOMNode *aNode, PRInt32 aOffset);
PRBool IsOnlyAttribute(nsIDOMNode *aElement, const nsAReadableString *aAttribute);
PRBool HasMatchingAttributes(nsIDOMNode *aNode1,
nsIDOMNode *aNode2);
nsresult RemoveBlockContainer(nsIDOMNode *inNode);
nsresult GetPriorHTMLSibling(nsIDOMNode *inNode, nsCOMPtr<nsIDOMNode> *outNode);
nsresult GetPriorHTMLSibling(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr<nsIDOMNode> *outNode);
nsresult GetNextHTMLSibling(nsIDOMNode *inNode, nsCOMPtr<nsIDOMNode> *outNode);
nsresult GetNextHTMLSibling(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr<nsIDOMNode> *outNode);
nsresult GetPriorHTMLNode(nsIDOMNode *inNode, nsCOMPtr<nsIDOMNode> *outNode);
nsresult GetPriorHTMLNode(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr<nsIDOMNode> *outNode);
nsresult GetNextHTMLNode(nsIDOMNode *inNode, nsCOMPtr<nsIDOMNode> *outNode);
nsresult GetNextHTMLNode(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr<nsIDOMNode> *outNode);
nsresult IsFirstEditableChild( nsIDOMNode *aNode, PRBool *aOutIsFirst);
nsresult IsLastEditableChild( nsIDOMNode *aNode, PRBool *aOutIsLast);
nsresult GetFirstEditableChild( nsIDOMNode *aNode, nsCOMPtr<nsIDOMNode> *aOutFirstChild);
nsresult GetLastEditableChild( nsIDOMNode *aNode, nsCOMPtr<nsIDOMNode> *aOutLastChild);
nsresult GetFirstEditableLeaf( nsIDOMNode *aNode, nsCOMPtr<nsIDOMNode> *aOutFirstLeaf);
nsresult GetLastEditableLeaf( nsIDOMNode *aNode, nsCOMPtr<nsIDOMNode> *aOutLastLeaf);
nsresult GetDOMEventReceiver(nsIDOMEventReceiver **aEventReceiver);
//XXX Kludge: Used to suppress spurious drag/drop events (bug 50703)
PRBool mIgnoreSpuriousDragEvent;
NS_IMETHOD IgnoreSpuriousDragEvent(PRBool aIgnoreSpuriousDragEvent) {mIgnoreSpuriousDragEvent = aIgnoreSpuriousDragEvent; return NS_OK;}
nsresult GetInlinePropertyBase(nsIAtom *aProperty,
const nsAReadableString *aAttribute,
const nsAReadableString *aValue,
PRBool *aFirst,
PRBool *aAny,
PRBool *aAll,
nsAWritableString *outValue);
// Data members
protected:
TypeInState* mTypeInState;
nsCOMPtr<nsIAtom> mBoldAtom;
nsCOMPtr<nsIAtom> mItalicAtom;
nsCOMPtr<nsIAtom> mUnderlineAtom;
nsCOMPtr<nsIAtom> mFontAtom;
nsCOMPtr<nsIAtom> mLinkAtom;
nsCOMPtr<nsIEditProperty> mEditProperty;
nsCOMPtr<nsIDOMNode> mCachedNode;
PRBool mCachedBoldStyle;
PRBool mCachedItalicStyle;
PRBool mCachedUnderlineStyle;
nsString mCachedFontName;
// Used by GetFirstSelectedCell and GetNextSelectedCell
PRInt32 mSelectedCellIndex;
nsCOMPtr<nsIRangeUtils> mRangeHelper;
public:
// friends
friend class nsHTMLEditRules;
friend class nsTextEditRules;
friend class nsWSRunObject;
};
#endif //nsHTMLEditor_h__
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