/* -*- 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 nsImageMap_h___ #define nsImageMap_h___ #include "nslayout.h" #include "nsISupports.h" #include "nsCoord.h" #include "nsVoidArray.h" #include "nsIDocumentObserver.h" #include "nsIDOMFocusListener.h" #include "nsIFrame.h" class nsIContent; class nsIDOMHTMLAreaElement; class nsIDOMHTMLMapElement; class nsIPresContext; class nsIRenderingContext; class nsIURI; class nsString; class nsIDOMEvent; class nsImageMap : public nsIDocumentObserver, public nsIDOMFocusListener { public: nsImageMap(); nsresult Init(nsIPresShell* aPresShell, nsIFrame* aImageFrame, nsIDOMHTMLMapElement* aMap); /** * See if the given aX,aY pixel coordinates are in the image * map. If they are then NS_OK is returned and aAbsURL, aTarget, * aAltText, aSuppress are filled in with the values from the * underlying area tag. If the coordinates are not in the map * then NS_NOT_INSIDE is returned. */ PRBool IsInside(nscoord aX, nscoord aY, nsIContent** aContent, nsString& aAbsURL, nsString& aTarget, nsString& aAltText, PRBool* aSuppress); /** * See if the given aX,aY pixel coordinates are in the image * map. If they are then NS_OK is returned otherwise NS_NOT_INSIDE * is returned. */ PRBool IsInside(nscoord aX, nscoord aY); void Draw(nsIPresContext* aCX, nsIRenderingContext& aRC); /** * Called just before the nsImageFrame releases us. * Used to break the cycle caused by the DOM listener. */ void Destroy(void); #ifdef DEBUG void SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const; #endif // nsISupports NS_DECL_ISUPPORTS // nsIDocumentObserver NS_IMETHOD BeginUpdate(nsIDocument *aDocument); NS_IMETHOD EndUpdate(nsIDocument *aDocument); NS_IMETHOD BeginLoad(nsIDocument *aDocument); NS_IMETHOD EndLoad(nsIDocument *aDocument); NS_IMETHOD BeginReflow(nsIDocument *aDocument, nsIPresShell* aShell); NS_IMETHOD EndReflow(nsIDocument *aDocument, nsIPresShell* aShell); NS_IMETHOD ContentChanged(nsIDocument *aDocument, nsIContent* aContent, nsISupports* aSubContent); NS_IMETHOD ContentStatesChanged(nsIDocument* aDocument, nsIContent* aContent1, nsIContent* aContent2); NS_IMETHOD AttributeChanged(nsIDocument *aDocument, nsIContent* aContent, PRInt32 aNameSpaceID, nsIAtom* aAttribute, PRInt32 aModType, PRInt32 aHint); NS_IMETHOD ContentAppended(nsIDocument *aDocument, nsIContent* aContainer, PRInt32 aNewIndexInContainer); NS_IMETHOD ContentInserted(nsIDocument *aDocument, nsIContent* aContainer, nsIContent* aChild, PRInt32 aIndexInContainer); NS_IMETHOD ContentReplaced(nsIDocument *aDocument, nsIContent* aContainer, nsIContent* aOldChild, nsIContent* aNewChild, PRInt32 aIndexInContainer); NS_IMETHOD ContentRemoved(nsIDocument *aDocument, nsIContent* aContainer, nsIContent* aChild, PRInt32 aIndexInContainer); NS_IMETHOD StyleSheetAdded(nsIDocument *aDocument, nsIStyleSheet* aStyleSheet); NS_IMETHOD StyleSheetRemoved(nsIDocument *aDocument, nsIStyleSheet* aStyleSheet); NS_IMETHOD StyleSheetDisabledStateChanged(nsIDocument *aDocument, nsIStyleSheet* aStyleSheet, PRBool aDisabled); NS_IMETHOD StyleRuleChanged(nsIDocument *aDocument, nsIStyleSheet* aStyleSheet, nsIStyleRule* aStyleRule, PRInt32 aHint); NS_IMETHOD StyleRuleAdded(nsIDocument *aDocument, nsIStyleSheet* aStyleSheet, nsIStyleRule* aStyleRule); NS_IMETHOD StyleRuleRemoved(nsIDocument *aDocument, nsIStyleSheet* aStyleSheet, nsIStyleRule* aStyleRule); NS_IMETHOD DocumentWillBeDestroyed(nsIDocument *aDocument); //nsIDOMFocusListener NS_IMETHOD Focus(nsIDOMEvent* aEvent); NS_IMETHOD Blur(nsIDOMEvent* aEvent); NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent); protected: virtual ~nsImageMap(); void FreeAreas(); nsresult UpdateAreas(); nsresult UpdateAreasForBlock(nsIContent* aParent, PRBool* aFoundAnchor); static PRBool IsAncestorOf(nsIContent* aContent, nsIContent* aAncestorContent); nsresult AddArea(nsIContent* aArea); nsresult ChangeFocus(nsIDOMEvent* aEvent, PRBool aFocus); nsresult Invalidate(nsIPresContext* aPresContext, nsIFrame* aFrame, nsRect& aRect); 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 nsIDOMHTMLMapElement* mDomMap; nsIContent* mMap; nsVoidArray mAreas; PRBool mContainsBlockContents; }; #endif /* nsImageMap_h___ */