зеркало из https://github.com/mozilla/gecko-dev.git
257 строки
11 KiB
C++
257 строки
11 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 License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsHTMLEditor_h__
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#define nsHTMLEditor_h__
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#include "nsITextEditor.h"
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#include "nsTextEditor.h"
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#include "nsIHTMLEditor.h"
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#include "nsCOMPtr.h"
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#include "nsIDOMEventListener.h"
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#include "nsITableLayout.h"
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/**
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* The HTML editor implementation.<br>
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* Use to edit HTML document represented as a DOM tree.
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*/
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class nsHTMLEditor : public nsTextEditor, public nsIHTMLEditor
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{
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typedef enum {eNoOp=0, eReplaceParent=1, eInsertParent=2} BlockTransformationType;
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public:
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// see nsIHTMLEditor for documentation
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//Interfaces for addref and release and queryinterface
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//NOTE macro used is for classes that inherit from
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// another class. Only the base class should use NS_DECL_ISUPPORTS
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NS_DECL_ISUPPORTS_INHERITED
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nsHTMLEditor();
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virtual ~nsHTMLEditor();
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//Initialization
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NS_IMETHOD Init(nsIDOMDocument *aDoc, nsIPresShell *aPresShell);
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//============================================================================
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// Methods that are duplicates of nsTextEditor -- exposed here for convenience
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// Editing Operations
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NS_IMETHOD SetTextProperty(nsIAtom *aProperty,
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const nsString *aAttribute,
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const nsString *aValue);
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NS_IMETHOD GetTextProperty(nsIAtom *aProperty,
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const nsString *aAttribute, const nsString *aValue,
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PRBool &aFirst, PRBool &aAny, PRBool &aAll);
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NS_IMETHOD RemoveTextProperty(nsIAtom *aProperty, const nsString *aAttribute);
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NS_IMETHOD DeleteSelection(nsIEditor::ECollapsedSelectionAction aAction);
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NS_IMETHOD InsertText(const nsString& aStringToInsert);
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NS_IMETHOD InsertBreak();
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NS_IMETHOD CopyAttributes(nsIDOMNode *aDestNode, nsIDOMNode *aSourceNode);
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// Transaction control
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NS_IMETHOD EnableUndo(PRBool aEnable);
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NS_IMETHOD Undo(PRUint32 aCount);
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NS_IMETHOD CanUndo(PRBool &aIsEnabled, PRBool &aCanUndo);
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NS_IMETHOD Redo(PRUint32 aCount);
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NS_IMETHOD CanRedo(PRBool &aIsEnabled, PRBool &aCanRedo);
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NS_IMETHOD BeginTransaction();
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NS_IMETHOD EndTransaction();
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// Selection and navigation
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NS_IMETHOD MoveSelectionUp(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD MoveSelectionDown(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD MoveSelectionNext(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD MoveSelectionPrevious(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD SelectNext(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD SelectPrevious(nsIAtom *aIncrement, PRBool aExtendSelection);
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NS_IMETHOD SelectAll();
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NS_IMETHOD BeginningOfDocument();
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NS_IMETHOD EndOfDocument();
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NS_IMETHOD ScrollUp(nsIAtom *aIncrement);
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NS_IMETHOD ScrollDown(nsIAtom *aIncrement);
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NS_IMETHOD ScrollIntoView(PRBool aScrollToBegin);
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// file handling
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NS_IMETHOD Save();
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NS_IMETHOD SaveAs(PRBool aSavingCopy);
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// cut, copy & paste
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NS_IMETHOD Cut();
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NS_IMETHOD Copy();
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NS_IMETHOD Paste();
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NS_IMETHOD PasteAsQuotation();
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NS_IMETHOD PasteAsCitedQuotation(const nsString& aCitation);
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NS_IMETHOD InsertAsQuotation(const nsString& aQuotedText);
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NS_IMETHOD InsertAsCitedQuotation(const nsString& aQuotedText,
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const nsString& aCitation);
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// Input/Output
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NS_IMETHOD InsertHTML(const nsString& aInputString);
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NS_IMETHOD BeginComposition(void);
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NS_IMETHOD SetCompositionString(const nsString& aCompositionString, nsIPrivateTextRangeList* aTextRange, nsTextEventReply* aReply);
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NS_IMETHOD EndComposition(void);
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NS_IMETHOD OutputToString(nsString& aOutputString,
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const nsString& aFormatType,
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PRUint32 aFlags);
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NS_IMETHOD OutputToStream(nsIOutputStream* aOutputStream,
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const nsString& aFormatType,
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const nsString* aCharsetOverride,
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PRUint32 aFlags);
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// Miscellaneous
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NS_IMETHOD ApplyStyleSheet(const nsString& aURL);
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// Logging methods
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NS_IMETHOD StartLogging(nsIFileSpec *aLogFile);
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NS_IMETHOD StopLogging();
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// End of methods implemented in nsEditor
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//=============================================================
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// HTML Editing methods
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// This sets background on the appropriate container element (table, cell,)
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// or calls into nsTextEditor to set the page background
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NS_IMETHOD SetBackgroundColor(const nsString& aColor);
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NS_IMETHOD SetBodyAttribute(const nsString& aAttr, const nsString& aValue);
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NS_IMETHOD GetParagraphStyle(nsStringArray *aTagList);
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NS_IMETHOD AddBlockParent(nsString& aParentTag);
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NS_IMETHOD ReplaceBlockParent(nsString& aParentTag);
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NS_IMETHOD RemoveParagraphStyle();
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NS_IMETHOD RemoveParent(const nsString &aParentTag);
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NS_IMETHOD GetParagraphFormat(nsString& aParagraphFormat);
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NS_IMETHOD SetParagraphFormat(const nsString& aParagraphFormat);
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NS_IMETHOD Indent(const nsString& aIndent);
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NS_IMETHOD Align(const nsString& aAlign);
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NS_IMETHOD InsertList(const nsString& aListType);
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// MHTML helper methods
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NS_IMETHOD GetEmbeddedObjects(nsISupportsArray** aNodeList);
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NS_IMETHOD GetElementOrParentByTagName(const nsString& aTagName, nsIDOMNode *aNode, nsIDOMElement** aReturn);
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NS_IMETHOD GetSelectedElement(const nsString& aTagName, nsIDOMElement** aReturn);
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NS_IMETHOD CreateElementWithDefaults(const nsString& aTagName, nsIDOMElement** aReturn);
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NS_IMETHOD InsertElement(nsIDOMElement* aElement, PRBool aDeleteSelection);
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NS_IMETHOD SaveHLineSettings(nsIDOMElement* aElement);
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NS_IMETHOD InsertLinkAroundSelection(nsIDOMElement* aAnchorElement);
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NS_IMETHOD SelectElement(nsIDOMElement* aElement);
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NS_IMETHOD SetCaretAfterElement(nsIDOMElement* aElement);
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// Return TRUE if aElement is a table-related elemet and caret was set
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PRBool SetCaretInTableCell(nsIDOMElement* aElement);
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PRBool IsElementInBody(nsIDOMElement* aElement);
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// Table Editing (implemented in EditTable.cpp)
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// Helper used to get nsITableLayout interface for methods implemented in nsTableFrame
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NS_IMETHOD GetTableLayoutObject(nsIDOMElement* aTable, nsITableLayout **tableLayoutObject);
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/** Get the row an column index from the layout's cellmap */
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NS_IMETHOD GetCellIndexes(nsIDOMElement *aCell, PRInt32 & aRowIndex, PRInt32 &aColIndex);
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/** Get the number of rows and columns in a table from the layout's cellmap */
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NS_IMETHOD GetTableSize(nsIDOMElement *aTable, PRInt32& aRowCount, PRInt32& aColCount);
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/* Get cell at a cellmap location. Returns NS_TABLELAYOUT_CELL_NOT_FOUND if past end of row or col */
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NS_IMETHOD GetCellAt(nsIDOMElement* aTable, PRInt32 aRowIndex, PRInt32 aColIndex, nsIDOMElement* &aCell);
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/* Get cell and associated data */
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NS_IMETHOD GetCellDataAt(nsIDOMElement* aTable, PRInt32 aRowIndex, PRInt32 aColIndex, nsIDOMElement* &aCell,
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PRInt32& aStartRowIndex, PRInt32& aStartColIndex,
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PRInt32& aRowSpan, PRInt32& aColSpan, PRBool& aIsSelected);
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NS_IMETHOD InsertTableCell(PRInt32 aNumber, PRBool aAfter);
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NS_IMETHOD InsertTableColumn(PRInt32 aNumber, PRBool aAfter);
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NS_IMETHOD InsertTableRow(PRInt32 aNumber, PRBool aAfter);
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NS_IMETHOD DeleteTable();
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NS_IMETHOD DeleteTableCell(PRInt32 aNumber);
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NS_IMETHOD DeleteTableColumn(PRInt32 aNumber);
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NS_IMETHOD DeleteTableRow(PRInt32 aNumber);
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NS_IMETHOD JoinTableCells();
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/** Make table "rectangular" -- fill in all missing cellmap locations
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* If aTable is null, it uses table enclosing the selection anchor
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*/
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NS_IMETHOD NormalizeTable(nsIDOMElement *aTable);
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// Table utilities
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// All of the above need to get the same basic context data
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NS_IMETHOD GetCellContext(nsCOMPtr<nsIDOMSelection> &aSelection,
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nsCOMPtr<nsIDOMElement> &aTable, nsCOMPtr<nsIDOMElement> &aCell,
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nsCOMPtr<nsIDOMNode> &aCellParent, PRInt32& aCellOffset,
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PRInt32& aRow, PRInt32& aCol);
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// Use the selection iterator to find the first cell in the selection
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NS_IMETHOD GetFirstSelectedCell(nsCOMPtr<nsIDOMElement> &aCell);
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// Setting caret to a logical place can get tricky,
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// especially after deleting table stuff
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typedef enum { ePreviousColumn=0, ePreviousRow } SetCaretSearchDirection;
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NS_IMETHOD SetCaretAfterTableEdit(nsIDOMElement* aTable, PRInt32 aCol, PRInt32 aRow, SetCaretSearchDirection aDirection);
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protected:
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// rules initialization
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virtual void InitRules();
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NS_IMETHOD ReParentContentOfNode(nsIDOMNode *aNode,
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nsString &aParentTag,
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BlockTransformationType aTranformation);
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NS_IMETHOD ReParentBlockContent(nsIDOMNode *aNode,
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nsString &aParentTag,
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nsIDOMNode *aBlockParentNode,
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nsString &aBlockParentTag,
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BlockTransformationType aTranformation,
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nsIDOMNode **aNewParentNode);
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NS_IMETHOD ReParentContentOfRange(nsIDOMRange *aRange,
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nsString &aParentTag,
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BlockTransformationType aTranformation);
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NS_IMETHOD RemoveParagraphStyleFromRange(nsIDOMRange *aRange);
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NS_IMETHOD RemoveParagraphStyleFromBlockContent(nsIDOMRange *aRange);
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NS_IMETHOD RemoveParentFromRange(const nsString &aParentTag, nsIDOMRange *aRange);
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NS_IMETHOD RemoveParentFromBlockContent(const nsString &aParentTag, nsIDOMRange *aRange);
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NS_IMETHOD IsRootTag(nsString &aTag, PRBool &aIsTag);
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NS_IMETHOD IsSubordinateBlock(nsString &aTag, PRBool &aIsTag);
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// EVENT LISTENERS AND COMMAND ROUTING NEEDS WORK
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// For now, the listners are tied to the nsTextEditor class
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//
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// nsCOMPtr<nsIDOMEventListener> mKeyListenerP;
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// nsCOMPtr<nsIDOMEventListener> mMouseListenerP;
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// this overrides the base class implementation. It is not exported in nsIHTMLEditor.
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NS_IMETHOD DebugUnitTests(PRInt32 *outNumTests, PRInt32 *outNumTestsFailed);
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};
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#endif //nsHTMLEditor_h__
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