michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_MutationEvent_h__
michael@0: #define mozilla_MutationEvent_h__
michael@0: 
michael@0: #include "mozilla/BasicEvents.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsIAtom.h"
michael@0: #include "nsIDOMNode.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: class InternalMutationEvent : public WidgetEvent
michael@0: {
michael@0: public:
michael@0:   virtual InternalMutationEvent* AsMutationEvent() MOZ_OVERRIDE { return this; }
michael@0: 
michael@0:   InternalMutationEvent(bool aIsTrusted, uint32_t aMessage) :
michael@0:     WidgetEvent(aIsTrusted, aMessage, NS_MUTATION_EVENT),
michael@0:     mAttrChange(0)
michael@0:   {
michael@0:     mFlags.mCancelable = false;
michael@0:   }
michael@0: 
michael@0:   virtual WidgetEvent* Duplicate() const MOZ_OVERRIDE
michael@0:   {
michael@0:     MOZ_ASSERT(eventStructType == NS_MUTATION_EVENT,
michael@0:                "Duplicate() must be overridden by sub class");
michael@0:     InternalMutationEvent* result = new InternalMutationEvent(false, message);
michael@0:     result->AssignMutationEventData(*this, true);
michael@0:     result->mFlags = mFlags;
michael@0:     return result;
michael@0:   }
michael@0: 
michael@0:   nsCOMPtr<nsIDOMNode> mRelatedNode;
michael@0:   nsCOMPtr<nsIAtom>    mAttrName;
michael@0:   nsCOMPtr<nsIAtom>    mPrevAttrValue;
michael@0:   nsCOMPtr<nsIAtom>    mNewAttrValue;
michael@0:   unsigned short       mAttrChange;
michael@0: 
michael@0:   void AssignMutationEventData(const InternalMutationEvent& aEvent,
michael@0:                                bool aCopyTargets)
michael@0:   {
michael@0:     AssignEventData(aEvent, aCopyTargets);
michael@0: 
michael@0:     mRelatedNode = aEvent.mRelatedNode;
michael@0:     mAttrName = aEvent.mAttrName;
michael@0:     mPrevAttrValue = aEvent.mPrevAttrValue;
michael@0:     mNewAttrValue = aEvent.mNewAttrValue;
michael@0:     mAttrChange = aEvent.mAttrChange;
michael@0:   }
michael@0: };
michael@0: 
michael@0: // Bits are actually checked to optimize mutation event firing.
michael@0: // That's why I don't number from 0x00.  The first event should
michael@0: // always be 0x01.
michael@0: #define NS_EVENT_BITS_MUTATION_SUBTREEMODIFIED                0x01
michael@0: #define NS_EVENT_BITS_MUTATION_NODEINSERTED                   0x02
michael@0: #define NS_EVENT_BITS_MUTATION_NODEREMOVED                    0x04
michael@0: #define NS_EVENT_BITS_MUTATION_NODEREMOVEDFROMDOCUMENT        0x08
michael@0: #define NS_EVENT_BITS_MUTATION_NODEINSERTEDINTODOCUMENT       0x10
michael@0: #define NS_EVENT_BITS_MUTATION_ATTRMODIFIED                   0x20
michael@0: #define NS_EVENT_BITS_MUTATION_CHARACTERDATAMODIFIED          0x40
michael@0: 
michael@0: } // namespace mozilla
michael@0: 
michael@0: #endif // mozilla_MutationEvent_h__