mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 00:25:27 +00:00
257 lines
9.9 KiB
C++
257 lines
9.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* 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 the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either 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 NPL, 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 NPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef nsPlaintextEditor_h__
|
|
#define nsPlaintextEditor_h__
|
|
|
|
#include "nsCOMPtr.h"
|
|
|
|
#include "nsIPlaintextEditor.h"
|
|
#include "nsIEditorMailSupport.h"
|
|
|
|
#include "nsEditor.h"
|
|
#include "nsIDOMElement.h"
|
|
#include "nsIDOMEventListener.h"
|
|
|
|
#include "nsEditRules.h"
|
|
|
|
class nsIDOMKeyEvent;
|
|
class nsITransferable;
|
|
class nsIDOMEventReceiver;
|
|
class nsIDocumentEncoder;
|
|
|
|
/**
|
|
* The text editor implementation.
|
|
* Use to edit text document represented as a DOM tree.
|
|
*/
|
|
class nsPlaintextEditor : public nsEditor,
|
|
public nsIPlaintextEditor,
|
|
public nsIEditorMailSupport
|
|
{
|
|
|
|
public:
|
|
|
|
// 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
|
|
|
|
/* below used by TypedText() */
|
|
enum {
|
|
eTypedText, /* user typed text */
|
|
eTypedBR, /* user typed shift-enter to get a br */
|
|
eTypedBreak /* user typed enter */
|
|
};
|
|
|
|
nsPlaintextEditor();
|
|
virtual ~nsPlaintextEditor();
|
|
|
|
/* ------------ nsIPlaintextEditor methods -------------- */
|
|
NS_DECL_NSIPLAINTEXTEDITOR
|
|
|
|
/* ------------ nsIEditorMailSupport overrides -------------- */
|
|
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 Rewrap(PRBool aRespectNewlines);
|
|
NS_IMETHOD StripCites();
|
|
NS_IMETHOD GetEmbeddedObjects(nsISupportsArray** aNodeList);
|
|
|
|
/* ------------ nsIEditorIMESupport overrides -------------- */
|
|
|
|
NS_IMETHOD SetCompositionString(const nsAReadableString & aCompositionString, nsIPrivateTextRangeList * aTextRange, nsTextEventReply * aReply);
|
|
NS_IMETHOD GetReconversionString(nsReconversionEventReply* aReply);
|
|
|
|
/* ------------ Overrides of nsEditor interface methods -------------- */
|
|
NS_IMETHOD BeginComposition(nsTextEventReply* aReply);
|
|
|
|
/** prepare the editor for use */
|
|
NS_IMETHOD Init(nsIDOMDocument *aDoc, nsIPresShell *aPresShell, nsIContent *aRoot, nsISelectionController *aSelCon, PRUint32 aFlags);
|
|
|
|
NS_IMETHOD GetDocumentIsEmpty(PRBool *aDocumentIsEmpty);
|
|
|
|
NS_IMETHOD DeleteSelection(EDirection aAction);
|
|
|
|
NS_IMETHOD SetDocumentCharacterSet(const nsAReadableString & characterSet);
|
|
|
|
/** we override this here to install event listeners */
|
|
NS_IMETHOD PostCreate();
|
|
|
|
NS_IMETHOD GetFlags(PRUint32 *aFlags);
|
|
NS_IMETHOD SetFlags(PRUint32 aFlags);
|
|
|
|
NS_IMETHOD Undo(PRUint32 aCount);
|
|
NS_IMETHOD Redo(PRUint32 aCount);
|
|
|
|
NS_IMETHOD Cut();
|
|
NS_IMETHOD CanCut(PRBool *aCanCut);
|
|
NS_IMETHOD Copy();
|
|
NS_IMETHOD CanCopy(PRBool *aCanCopy);
|
|
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 OutputToString(nsAWritableString& aOutputString,
|
|
const nsAReadableString& aFormatType,
|
|
PRUint32 aFlags);
|
|
|
|
NS_IMETHOD OutputToStream(nsIOutputStream* aOutputStream,
|
|
const nsAReadableString& aFormatType,
|
|
const nsAReadableString& aCharsetOverride,
|
|
PRUint32 aFlags);
|
|
|
|
|
|
/** 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();
|
|
|
|
/** make the given selection span the entire document */
|
|
NS_IMETHOD SelectEntireDocument(nsISelection *aSelection);
|
|
|
|
/* ------------ Utility Routines, not part of public API -------------- */
|
|
NS_IMETHOD TypedText(const nsAReadableString& aString, PRInt32 aAction);
|
|
|
|
/** 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);
|
|
|
|
protected:
|
|
|
|
NS_IMETHOD InitRules();
|
|
void BeginEditorInit();
|
|
nsresult EndEditorInit();
|
|
|
|
/** 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);
|
|
NS_IMETHOD GetBodyStyleContext(nsIStyleContext** aStyleContext);
|
|
|
|
// Helpers for output routines
|
|
NS_IMETHOD GetAndInitDocEncoder(const nsAReadableString& aFormatType,
|
|
PRUint32 aFlags,
|
|
const nsAReadableString& aCharset,
|
|
nsIDocumentEncoder** encoder);
|
|
|
|
// key event helpers
|
|
NS_IMETHOD CreateBR(nsIDOMNode *aNode, PRInt32 aOffset,
|
|
nsCOMPtr<nsIDOMNode> *outBRNode, EDirection aSelect = eNone);
|
|
NS_IMETHOD CreateBRImpl(nsCOMPtr<nsIDOMNode> *aInOutParent,
|
|
PRInt32 *aInOutOffset,
|
|
nsCOMPtr<nsIDOMNode> *outBRNode,
|
|
EDirection aSelect);
|
|
NS_IMETHOD InsertBR(nsCOMPtr<nsIDOMNode> *outBRNode);
|
|
|
|
NS_IMETHOD IsRootTag(nsString &aTag, PRBool &aIsTag);
|
|
|
|
|
|
// factored methods for handling insertion of data from transferables (drag&drop or clipboard)
|
|
NS_IMETHOD PrepareTransferable(nsITransferable **transferable);
|
|
NS_IMETHOD InsertTextFromTransferable(nsITransferable *transferable);
|
|
|
|
/** simple utility to handle any error with event listener allocation or registration */
|
|
void HandleEventListenerError();
|
|
|
|
/* small utility routine to test the eEditorReadonly bit */
|
|
PRBool IsModifiable();
|
|
|
|
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;}
|
|
|
|
// Data members
|
|
protected:
|
|
|
|
nsCOMPtr<nsIEditRules> mRules;
|
|
nsCOMPtr<nsIDOMEventListener> mKeyListenerP;
|
|
nsCOMPtr<nsIDOMEventListener> mMouseListenerP;
|
|
nsCOMPtr<nsIDOMEventListener> mTextListenerP;
|
|
nsCOMPtr<nsIDOMEventListener> mCompositionListenerP;
|
|
nsCOMPtr<nsIDOMEventListener> mDragListenerP;
|
|
nsCOMPtr<nsIDOMEventListener> mFocusListenerP;
|
|
PRBool mIsComposing;
|
|
PRInt32 mMaxTextLength;
|
|
PRInt32 mInitTriggerCounter;
|
|
|
|
// friends
|
|
friend class nsHTMLEditRules;
|
|
friend class nsTextEditRules;
|
|
friend class nsAutoEditInitRulesTrigger;
|
|
|
|
};
|
|
|
|
#endif //nsPlaintextEditor_h__
|
|
|