зеркало из https://github.com/mozilla/gecko-dev.git
138 строки
4.8 KiB
C++
138 строки
4.8 KiB
C++
/* -*- 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):
|
|
*
|
|
* 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 ***** */
|
|
|
|
/* code for HTML client-side image maps */
|
|
|
|
#ifndef nsImageMap_h___
|
|
#define nsImageMap_h___
|
|
|
|
#include "nsISupports.h"
|
|
#include "nsCoord.h"
|
|
#include "nsVoidArray.h"
|
|
#include "nsStubDocumentObserver.h"
|
|
#include "nsIDOMFocusListener.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsIImageMap.h"
|
|
|
|
class nsIDOMHTMLAreaElement;
|
|
class nsIDOMHTMLMapElement;
|
|
class nsPresContext;
|
|
class nsIRenderingContext;
|
|
class nsIURI;
|
|
class nsString;
|
|
class nsIDOMEvent;
|
|
|
|
class nsImageMap : public nsStubDocumentObserver, public nsIDOMFocusListener,
|
|
public nsIImageMap
|
|
{
|
|
public:
|
|
nsImageMap();
|
|
|
|
nsresult Init(nsIPresShell* aPresShell, nsIFrame* aImageFrame, nsIDOMHTMLMapElement* aMap);
|
|
|
|
/**
|
|
* See if the given aX,aY <b>pixel</b> coordinates are in the image
|
|
* map. If they are then PR_TRUE is returned and aContent points to the
|
|
* found area. If the coordinates are not in the map then PR_FALSE
|
|
* is returned.
|
|
*/
|
|
PRBool IsInside(nscoord aX, nscoord aY,
|
|
nsIContent** aContent) const;
|
|
|
|
/**
|
|
* See if the given aX,aY <b>pixel</b> coordinates are in the image
|
|
* map.
|
|
*/
|
|
PRBool IsInside(nscoord aX, nscoord aY) const;
|
|
|
|
void Draw(nsPresContext* aCX, nsIRenderingContext& aRC);
|
|
|
|
/**
|
|
* Called just before the nsImageFrame releases us.
|
|
* Used to break the cycle caused by the DOM listener.
|
|
*/
|
|
void Destroy(void);
|
|
|
|
// nsISupports
|
|
NS_DECL_ISUPPORTS
|
|
|
|
// nsIDocumentObserver
|
|
virtual void AttributeChanged(nsIDocument* aDocument, nsIContent* aContent,
|
|
PRInt32 aNameSpaceID, nsIAtom* aAttribute,
|
|
PRInt32 aModType);
|
|
virtual void ContentAppended(nsIDocument* aDocument, nsIContent* aContainer,
|
|
PRInt32 aNewIndexInContainer);
|
|
virtual void ContentInserted(nsIDocument* aDocument, nsIContent* aContainer,
|
|
nsIContent* aChild, PRInt32 aIndexInContainer);
|
|
virtual void ContentRemoved(nsIDocument* aDocument, nsIContent* aContainer,
|
|
nsIContent* aChild, PRInt32 aIndexInContainer);
|
|
|
|
//nsIDOMFocusListener
|
|
NS_IMETHOD Focus(nsIDOMEvent* aEvent);
|
|
NS_IMETHOD Blur(nsIDOMEvent* aEvent);
|
|
NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent);
|
|
|
|
//nsIImageMap
|
|
NS_IMETHOD GetBoundsForAreaContent(nsIContent *aContent,
|
|
nsPresContext* aPresContext,
|
|
nsRect& aBounds);
|
|
|
|
protected:
|
|
virtual ~nsImageMap();
|
|
|
|
void FreeAreas();
|
|
|
|
nsresult UpdateAreas();
|
|
nsresult SearchForAreas(nsIContent* aParent, PRBool& aFoundArea,
|
|
PRBool& aFoundAnchor);
|
|
|
|
nsresult AddArea(nsIContent* aArea);
|
|
|
|
nsresult ChangeFocus(nsIDOMEvent* aEvent, PRBool aFocus);
|
|
|
|
void MaybeUpdateAreas(nsIContent *aContent);
|
|
|
|
nsIPresShell* mPresShell; // WEAK - owns the frame that owns us
|
|
nsIFrame* mImageFrame; // the frame that owns us
|
|
nsIDocument* mDocument; // WEAK - the imagemap will not outlive the document
|
|
nsCOMPtr<nsIContent> mMap;
|
|
nsAutoVoidArray mAreas; // almost always has some entries
|
|
PRBool mContainsBlockContents;
|
|
};
|
|
|
|
#endif /* nsImageMap_h___ */
|