The Tor Browser: dom/events/InternalMutationEvent.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #ifndef mozilla_MutationEvent_h__

     7 #define mozilla_MutationEvent_h__

     9 #include "mozilla/BasicEvents.h"

    10 #include "nsCOMPtr.h"

    11 #include "nsIAtom.h"

    12 #include "nsIDOMNode.h"

    14 namespace mozilla {

    16 class InternalMutationEvent : public WidgetEvent

    17 {

    18 public:

    19   virtual InternalMutationEvent* AsMutationEvent() MOZ_OVERRIDE { return this; }

    21   InternalMutationEvent(bool aIsTrusted, uint32_t aMessage) :

    22     WidgetEvent(aIsTrusted, aMessage, NS_MUTATION_EVENT),

    23     mAttrChange(0)

    24   {

    25     mFlags.mCancelable = false;

    26   }

    28   virtual WidgetEvent* Duplicate() const MOZ_OVERRIDE

    29   {

    30     MOZ_ASSERT(eventStructType == NS_MUTATION_EVENT,

    31                "Duplicate() must be overridden by sub class");

    32     InternalMutationEvent* result = new InternalMutationEvent(false, message);

    33     result->AssignMutationEventData(*this, true);

    34     result->mFlags = mFlags;

    35     return result;

    36   }

    38   nsCOMPtr<nsIDOMNode> mRelatedNode;

    39   nsCOMPtr<nsIAtom>    mAttrName;

    40   nsCOMPtr<nsIAtom>    mPrevAttrValue;

    41   nsCOMPtr<nsIAtom>    mNewAttrValue;

    42   unsigned short       mAttrChange;

    44   void AssignMutationEventData(const InternalMutationEvent& aEvent,

    45                                bool aCopyTargets)

    46   {

    47     AssignEventData(aEvent, aCopyTargets);

    49     mRelatedNode = aEvent.mRelatedNode;

    50     mAttrName = aEvent.mAttrName;

    51     mPrevAttrValue = aEvent.mPrevAttrValue;

    52     mNewAttrValue = aEvent.mNewAttrValue;

    53     mAttrChange = aEvent.mAttrChange;

    54   }

    55 };

    57 // Bits are actually checked to optimize mutation event firing.

    58 // That's why I don't number from 0x00.  The first event should

    59 // always be 0x01.

    60 #define NS_EVENT_BITS_MUTATION_SUBTREEMODIFIED                0x01

    61 #define NS_EVENT_BITS_MUTATION_NODEINSERTED                   0x02

    62 #define NS_EVENT_BITS_MUTATION_NODEREMOVED                    0x04

    63 #define NS_EVENT_BITS_MUTATION_NODEREMOVEDFROMDOCUMENT        0x08

    64 #define NS_EVENT_BITS_MUTATION_NODEINSERTEDINTODOCUMENT       0x10

    65 #define NS_EVENT_BITS_MUTATION_ATTRMODIFIED                   0x20

    66 #define NS_EVENT_BITS_MUTATION_CHARACTERDATAMODIFIED          0x40

    68 } // namespace mozilla

    70 #endif // mozilla_MutationEvent_h__

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