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-rw-r--r--dom/events/InternalMutationEvent.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/dom/events/InternalMutationEvent.h b/dom/events/InternalMutationEvent.h
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+++ b/dom/events/InternalMutationEvent.h
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+/* -*- 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__