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nsMutationEvent.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
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00024  * Alternatively, the contents of this file may be used under the terms of
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00037 
00038 #ifndef nsMutationEvent_h__
00039 #define nsMutationEvent_h__
00040 
00041 #include "nsGUIEvent.h"
00042 #include "nsIDOMNode.h"
00043 #include "nsIAtom.h"
00044 #include "nsIDOMEventTarget.h"
00045 #include "nsIContent.h"
00046 
00047 class nsMutationEvent : public nsEvent
00048 {
00049 public:
00050   nsMutationEvent(PRBool isTrusted, PRUint32 msg)
00051     : nsEvent(isTrusted, msg, NS_MUTATION_EVENT),
00052       mAttrChange(0)
00053   {
00054     flags |= NS_EVENT_FLAG_CANT_CANCEL;
00055   }
00056 
00057   nsMutationEvent(PRBool isTrusted, PRUint32 msg, nsIDOMEventTarget *target)
00058     : nsEvent(isTrusted, msg, NS_MUTATION_EVENT),
00059       mTarget(target),
00060       mAttrChange(0)
00061   {
00062     flags |= NS_EVENT_FLAG_CANT_CANCEL;
00063   }
00064 
00065   nsMutationEvent(PRBool isTrusted, PRUint32 msg, nsIContent *target)
00066     : nsEvent(isTrusted, msg, NS_MUTATION_EVENT),
00067       mTarget(do_QueryInterface(target)),
00068       mAttrChange(0)
00069   {
00070     flags |= NS_EVENT_FLAG_CANT_CANCEL;
00071   }
00072 
00073   nsCOMPtr<nsIDOMNode> mRelatedNode;
00074   nsCOMPtr<nsIDOMEventTarget> mTarget;
00075   
00076   nsCOMPtr<nsIAtom> mAttrName;
00077   nsCOMPtr<nsIAtom> mPrevAttrValue;
00078   nsCOMPtr<nsIAtom> mNewAttrValue;
00079   
00080   unsigned short mAttrChange;
00081 };
00082 
00083 #define NS_MUTATION_START           1800
00084 #define NS_MUTATION_SUBTREEMODIFIED                   (NS_MUTATION_START)
00085 #define NS_MUTATION_NODEINSERTED                      (NS_MUTATION_START+1)
00086 #define NS_MUTATION_NODEREMOVED                       (NS_MUTATION_START+2)
00087 #define NS_MUTATION_NODEREMOVEDFROMDOCUMENT           (NS_MUTATION_START+3)
00088 #define NS_MUTATION_NODEINSERTEDINTODOCUMENT          (NS_MUTATION_START+4)
00089 #define NS_MUTATION_ATTRMODIFIED                      (NS_MUTATION_START+5)
00090 #define NS_MUTATION_CHARACTERDATAMODIFIED             (NS_MUTATION_START+6)
00091 
00092 // Bits are actually checked to optimize mutation event firing.
00093 // That's why I don't number from 0x00.  The first event should
00094 // always be 0x01.
00095 #define NS_EVENT_BITS_MUTATION_SUBTREEMODIFIED                0x01
00096 #define NS_EVENT_BITS_MUTATION_NODEINSERTED                   0x02
00097 #define NS_EVENT_BITS_MUTATION_NODEREMOVED                    0x04
00098 #define NS_EVENT_BITS_MUTATION_NODEREMOVEDFROMDOCUMENT        0x08
00099 #define NS_EVENT_BITS_MUTATION_NODEINSERTEDINTODOCUMENT       0x10
00100 #define NS_EVENT_BITS_MUTATION_ATTRMODIFIED                   0x20
00101 #define NS_EVENT_BITS_MUTATION_CHARACTERDATAMODIFIED          0x40
00102 
00103 #endif // nsMutationEvent_h__