diff options
Diffstat (limited to 'dom/events/InternalMutationEvent.h')
| -rw-r--r-- | dom/events/InternalMutationEvent.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/dom/events/InternalMutationEvent.h b/dom/events/InternalMutationEvent.h new file mode 100644 index 0000000000..11438397c1 --- /dev/null +++ b/dom/events/InternalMutationEvent.h @@ -0,0 +1,77 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef mozilla_MutationEvent_h__ +#define mozilla_MutationEvent_h__ + +#include "mozilla/BasicEvents.h" +#include "nsCOMPtr.h" +#include "nsAtom.h" +#include "nsINode.h" + +namespace mozilla { + +class InternalMutationEvent : public WidgetEvent { + public: + virtual InternalMutationEvent* AsMutationEvent() override { return this; } + + InternalMutationEvent(bool aIsTrusted, EventMessage aMessage, + const WidgetEventTime* aTime = nullptr) + : WidgetEvent(aIsTrusted, aMessage, eMutationEventClass, aTime), + mAttrChange(0) { + mFlags.mCancelable = false; + } + + virtual WidgetEvent* Duplicate() const override { + MOZ_ASSERT(mClass == eMutationEventClass, + "Duplicate() must be overridden by sub class"); + InternalMutationEvent* result = + new InternalMutationEvent(false, mMessage, this); + result->AssignMutationEventData(*this, true); + result->mFlags = mFlags; + return result; + } + + nsCOMPtr<nsINode> mRelatedNode; + RefPtr<nsAtom> mAttrName; + RefPtr<nsAtom> mPrevAttrValue; + RefPtr<nsAtom> mNewAttrValue; + unsigned short mAttrChange; + + void AssignMutationEventData(const InternalMutationEvent& aEvent, + bool aCopyTargets) { + AssignEventData(aEvent, aCopyTargets); + + mRelatedNode = aEvent.mRelatedNode; + mAttrName = aEvent.mAttrName; + mPrevAttrValue = aEvent.mPrevAttrValue; + mNewAttrValue = aEvent.mNewAttrValue; + mAttrChange = aEvent.mAttrChange; + } +}; + +// Bits are actually checked to optimize mutation event firing. +// That's why I don't number from 0x00. The first event should +// always be 0x01. +#define NS_EVENT_BITS_MUTATION_SUBTREEMODIFIED 0x01 +#define NS_EVENT_BITS_MUTATION_NODEINSERTED 0x02 +#define NS_EVENT_BITS_MUTATION_NODEREMOVED 0x04 +#define NS_EVENT_BITS_MUTATION_NODEREMOVEDFROMDOCUMENT 0x08 +#define NS_EVENT_BITS_MUTATION_NODEINSERTEDINTODOCUMENT 0x10 +#define NS_EVENT_BITS_MUTATION_ATTRMODIFIED 0x20 +#define NS_EVENT_BITS_MUTATION_CHARACTERDATAMODIFIED 0x40 + +#define NS_EVENT_BITS_MUTATION_ALL \ + (NS_EVENT_BITS_MUTATION_SUBTREEMODIFIED | \ + NS_EVENT_BITS_MUTATION_NODEINSERTED | NS_EVENT_BITS_MUTATION_NODEREMOVED | \ + NS_EVENT_BITS_MUTATION_NODEREMOVEDFROMDOCUMENT | \ + NS_EVENT_BITS_MUTATION_NODEINSERTEDINTODOCUMENT | \ + NS_EVENT_BITS_MUTATION_ATTRMODIFIED | \ + NS_EVENT_BITS_MUTATION_CHARACTERDATAMODIFIED) + +} // namespace mozilla + +#endif // mozilla_MutationEvent_h__ |